diff --git a/Fltk/visibilityWindow.cpp b/Fltk/visibilityWindow.cpp
index a447d815e1bbe04010191f7120e592d32e71c68a..4c8c5e75c2bb1f8777be1f45d517637ec7c1aacb 100644
--- a/Fltk/visibilityWindow.cpp
+++ b/Fltk/visibilityWindow.cpp
@@ -95,7 +95,7 @@ class VisPhysical : public Vis {
   char _visible;
   std::vector<GEntity*> _list;
  public:
-  VisPhysical(int tag, int dim, std::vector<GEntity*> list, std::string &name) 
+  VisPhysical(int tag, int dim, std::vector<GEntity*> list, std::string &name)
     : Vis(name), _tag(tag), _dim(dim), _visible(1), _list(list)  {}
   ~VisPhysical(){}
   int getTag() const { return _tag; }
@@ -134,7 +134,7 @@ class VisPartition : public Vis {
     m->getEntities(entities);
     for(unsigned int i = 0; i < entities.size(); i++)
       for(unsigned int j = 0; j < entities[i]->getNumMeshElements(); j++)
-        if(entities[i]->getMeshElement(j)->getPartition() == _tag) 
+        if(entities[i]->getMeshElement(j)->getPartition() == _tag)
           entities[i]->getMeshElement(j)->setVisibility(val);
   }
 };
@@ -178,11 +178,11 @@ class VisibilityList { // singleton
   {
     std::map<int, std::string> oldLabels;
 #if defined(HAVE_PARSER)
-    for(std::map<std::string, std::vector<double> >::iterator it = gmsh_yysymbols.begin();
+    for(std::map<std::string, gmsh_yysymbol>::iterator it = gmsh_yysymbols.begin();
         it != gmsh_yysymbols.end(); ++it)
       if(it->first.size())
-        for(unsigned int i = 0; i < it->second.size(); i++)
-          oldLabels[(int)it->second[i]] = std::string("(") + it->first + ")";
+        for(unsigned int i = 0; i < it->second.value.size(); i++)
+          oldLabels[(int)it->second.value[i]] = std::string("(") + it->first + ")";
 #endif
     for(unsigned int i = 0; i < _entities.size(); i++)
       delete _entities[i];
@@ -232,7 +232,7 @@ class VisibilityList { // singleton
   char getVisibility(int n){ return _entities[n]->getVisibility(); }
   // set the visibility information for the nth entity in the list
   void setVisibility(int n, char val, bool recursive=false)
-  { 
+  {
     _entities[n]->setVisibility(val, recursive);
   }
   // set all entities to be invisible
@@ -258,8 +258,8 @@ class VisibilityList { // singleton
   std::string getBrowserLine(int n)
   {
     std::ostringstream sstream;
-    sstream << "\t" << _entities[n]->getType() 
-            << "\t" << _entities[n]->getTag() 
+    sstream << "\t" << _entities[n]->getType()
+            << "\t" << _entities[n]->getTag()
             << "\t" << _entities[n]->getName();
     return sstream.str();
   }
@@ -290,7 +290,7 @@ static void _rebuild_list_browser()
     if(VisibilityList::instance()->getVisibility(i))
       FlGui::instance()->visibility->browser->select(i + 1);
   }
-  
+
   // activate/deactivate delete button
   if(type == VisibilityList::PhysicalEntities)
     FlGui::instance()->visibility->push[0]->activate();
@@ -417,7 +417,7 @@ class listBrowser : public Fl_Browser{
           select(i + 1);
         return 1;
       }
-      else if(Fl::test_shortcut(FL_Enter) || 
+      else if(Fl::test_shortcut(FL_Enter) ||
               Fl::test_shortcut(FL_KP_Enter)){
         visibility_browser_apply_cb(NULL, NULL);
         return 1;
@@ -483,7 +483,7 @@ static void _add_region(GRegion *gr, Fl_Tree *tree, std::string path)
 }
 
 static void _add_physical_group(int dim, int num, std::vector<GEntity*> &ge,
-                                std::map<int, std::string> &oldLabels, 
+                                std::map<int, std::string> &oldLabels,
                                 Fl_Tree *tree, std::string path)
 {
   if(ge.empty()) return;
@@ -582,11 +582,11 @@ static void _rebuild_tree_browser(bool force)
     m->getPhysicalGroups(groups);
     std::map<int, std::string> oldLabels;
 #if defined(HAVE_PARSER)
-    for(std::map<std::string, std::vector<double> >::iterator it = gmsh_yysymbols.begin();
+    for(std::map<std::string, gmsh_yysymbol>::iterator it = gmsh_yysymbols.begin();
         it != gmsh_yysymbols.end(); ++it)
       if(it->first.size())
-        for(unsigned int i = 0; i < it->second.size(); i++)
-          oldLabels[(int)it->second[i]] = std::string("(") + it->first + ")";
+        for(unsigned int i = 0; i < it->second.value.size(); i++)
+          oldLabels[(int)it->second.value[i]] = std::string("(") + it->first + ")";
 #endif
     for(int i = 3; i >= 0; i--)
       for(std::map<int, std::vector<GEntity*> >::iterator it = groups[i].begin();
@@ -715,7 +715,7 @@ void visibility_cb(Fl_Widget *w, void *data)
 
 static void visibility_save_cb(Fl_Widget *w, void *data)
 {
-  Msg::StatusBar(2, true, "Appending visibility info to '%s'...", 
+  Msg::StatusBar(2, true, "Appending visibility info to '%s'...",
                  GModel::current()->getFileName().c_str());
   // get the whole visibility information in geo format
   std::vector<int> state[4][2];
@@ -724,13 +724,13 @@ static void visibility_save_cb(Fl_Widget *w, void *data)
     (*it)->getVisibility() ?
       state[0][1].push_back((*it)->tag()) : state[0][0].push_back((*it)->tag());
   for(GModel::eiter it = m->firstEdge(); it != m->lastEdge(); it++)
-    (*it)->getVisibility() ? 
+    (*it)->getVisibility() ?
       state[1][1].push_back((*it)->tag()) : state[1][0].push_back((*it)->tag());
   for(GModel::fiter it = m->firstFace(); it != m->lastFace(); it++)
-    (*it)->getVisibility() ? 
+    (*it)->getVisibility() ?
       state[2][1].push_back((*it)->tag()) : state[2][0].push_back((*it)->tag());
   for(GModel::riter it = m->firstRegion(); it != m->lastRegion(); it++)
-    (*it)->getVisibility() ? 
+    (*it)->getVisibility() ?
       state[3][1].push_back((*it)->tag()) : state[3][0].push_back((*it)->tag());
   char tmp[256];
   const char *labels[4] = {"Point", "Line", "Surface", "Volume"};
@@ -820,19 +820,19 @@ static void _set_visibility_by_number(int what, int num, char val, bool recursiv
   case 7: // physical line
     for(GModel::eiter it = m->firstEdge(); it != m->lastEdge(); it++)
       for(unsigned int i = 0; i < (*it)->physicals.size(); i++)
-        if (all || std::abs((*it)->physicals[i]) == num) 
+        if (all || std::abs((*it)->physicals[i]) == num)
           (*it)->setVisibility(val, recursive);
     break;
   case 8: // physical surface
     for(GModel::fiter it = m->firstFace(); it != m->lastFace(); it++)
       for(unsigned int i = 0; i < (*it)->physicals.size(); i++)
-        if (all || std::abs((*it)->physicals[i]) == num) 
+        if (all || std::abs((*it)->physicals[i]) == num)
           (*it)->setVisibility(val, recursive);
     break;
   case 9: // physical volume
     for(GModel::riter it = m->firstRegion(); it != m->lastRegion(); it++)
       for(unsigned int i = 0; i < (*it)->physicals.size(); i++)
-        if (all || std::abs((*it)->physicals[i]) == num) 
+        if (all || std::abs((*it)->physicals[i]) == num)
           (*it)->setVisibility(val, recursive);
     break;
   }
@@ -856,7 +856,7 @@ static void _apply_visibility(char mode, bool physical,
   }
 
   if(mode == 2) mode = 1;
-  
+
   if(CTX::instance()->pickElements){
     for(unsigned int i = 0; i < elements.size(); i++)
       elements[i]->setVisibility(mode);
@@ -917,7 +917,7 @@ static void visibility_number_cb(Fl_Widget *w, void *data)
 
   int num = (!strcmp(str, "all") || !strcmp(str, "*")) ? -1 : atoi(str);
   bool recursive = FlGui::instance()->visibility->butt[0]->value() ? true : false;
-  
+
   _set_visibility_by_number(what, num, val, recursive);
 
   int pos = FlGui::instance()->visibility->browser->position();
@@ -999,7 +999,7 @@ static void visibility_interactive_cb(Fl_Widget *w, void *data)
     for(int i = 1; i <= 5; i++) // elements, points, lines, surfaces, volumes
       _set_visibility_by_number(i, -1, 1, false);
     CTX::instance()->mesh.changed = ENT_ALL;
-    drawContext::global()->draw();  
+    drawContext::global()->draw();
     return;
   }
   else
@@ -1012,10 +1012,10 @@ static void visibility_interactive_cb(Fl_Widget *w, void *data)
   std::vector<MElement*> elements;
 
   while(1) {
-    if(what == ENT_ALL) 
+    if(what == ENT_ALL)
       CTX::instance()->mesh.changed = ENT_ALL;
     drawContext::global()->draw();
-    Msg::StatusBar(3, false, "Select %s\n[Press %s'q' to abort]", 
+    Msg::StatusBar(3, false, "Select %s\n[Press %s'q' to abort]",
                    str.c_str(), mode ? "" : "'u' to undo or ");
 
     char ib = FlGui::instance()->selectEntity(what);
@@ -1038,7 +1038,7 @@ static void visibility_interactive_cb(Fl_Widget *w, void *data)
 
   CTX::instance()->mesh.changed = ENT_ALL;
   CTX::instance()->pickElements = 0;
-  drawContext::global()->draw();  
+  drawContext::global()->draw();
   Msg::StatusBar(3, false, "");
 }
 
@@ -1047,7 +1047,7 @@ static void visibility_per_window_cb(Fl_Widget *w, void *data)
   std::string what = (const char*)data;
   if(what == "item"){
     drawContext *ctx = FlGui::instance()->getCurrentOpenglWindow()->getDrawContext();
-    for(unsigned int i = 0; 
+    for(unsigned int i = 0;
         i < (unsigned int)FlGui::instance()->visibility->per_window->size(); i++){
       if(i < GModel::list.size()){
         GModel *m = GModel::list[i];
@@ -1130,13 +1130,13 @@ visibilityWindow::visibilityWindow(int deltaFontSize)
     {
       Fl_Group *gg = new Fl_Group
         (2 * WB, 2 * WB + 2 * BH, brw, height - 6 * WB - 4 * BH);
-      
+
       browser = new listBrowser
         (2 * WB, 2 * WB + 2 * BH, brw, height - 6 * WB - 4 * BH);
       browser->type(FL_MULTI_BROWSER);
       browser->textsize(FL_NORMAL_SIZE - 1);
       browser->column_widths(cols);
-      
+
       gg->end();
       Fl_Group::current()->resizable(gg);
     }
@@ -1331,7 +1331,7 @@ visibilityWindow::visibilityWindow(int deltaFontSize)
     bb[18] = new Fl_Button
       (ll + IW + WB, 2 * WB + 2 * BH, 2 * BH, 11 * BH, "Show\nAll");
     bb[18]->callback(visibility_interactive_cb, (void *)"show all");
-    
+
     g->end();
   }
   {
@@ -1346,7 +1346,7 @@ visibilityWindow::visibilityWindow(int deltaFontSize)
     Fl_Button *b1 = new Fl_Button
       (width - 1 * BB - 2 * WB, height - 2 * BH - 3 * WB, BB, BH, "Reset all");
     b1->callback(visibility_per_window_cb, (void*)"reset_all");
- 
+
     g->resizable(per_window);
     g->end();
   }
@@ -1388,7 +1388,7 @@ void visibilityWindow::updatePerWindow(bool force)
 
   gl = FlGui::instance()->getCurrentOpenglWindow();
   drawContext *ctx = gl->getDrawContext();
- 
+
   per_window->clear();
   int line = 1;
 
diff --git a/Geo/GModelIO_Geo.cpp b/Geo/GModelIO_Geo.cpp
index 47ebcd09b58a2d012b8f669e9e659434ce8a2643..9b5e809e59be6005286bd98238fb4ba13c27ea21 100644
--- a/Geo/GModelIO_Geo.cpp
+++ b/Geo/GModelIO_Geo.cpp
@@ -74,7 +74,7 @@ int GModel::exportDiscreteGEOInternals()
         if (v->Num == gve->tag()) {
           List_Add(c->Control_Points, &v);
           c->end = v;
-        }       
+        }
       }
       End_Curve(c);
       Tree_Add(GModel::current()->getGEOInternals()->Curves, &c);
@@ -106,7 +106,7 @@ int GModel::exportDiscreteGEOInternals()
   Msg::Debug("Geo internal model has:");
   List_T *points = Tree2List(_geo_internals->Points);
   List_T *curves = Tree2List(_geo_internals->Curves);
-  List_T *surfaces = Tree2List(_geo_internals->Surfaces);  
+  List_T *surfaces = Tree2List(_geo_internals->Surfaces);
   Msg::Debug("%d Vertices", List_Nbr(points));
   Msg::Debug("%d Edges", List_Nbr(curves));
   Msg::Debug("%d Faces", List_Nbr(surfaces));
@@ -238,7 +238,7 @@ int GModel::importGEOInternals()
       if(s->Color.type) f->setColor(s->Color.mesh);
     }
     List_Delete(surfaces);
-  } 
+  }
   if(Tree_Nbr(_geo_internals->Volumes)) {
     List_T *volumes = Tree2List(_geo_internals->Volumes);
     for(int i = 0; i < List_Nbr(volumes); i++){
@@ -259,7 +259,7 @@ int GModel::importGEOInternals()
         add(r);
       }
       else
-        r->resetMeshAttributes();       
+        r->resetMeshAttributes();
       if(!v->Visible) r->setVisibility(0);
       if(v->Color.type) r->setColor(v->Color.mesh);
     }
@@ -274,12 +274,12 @@ int GModel::importGEOInternals()
       GEntity *ge = 0;
       switch(p->Typ){
       case MSH_PHYSICAL_POINT:   ge = getVertexByTag(abs(num)); break;
-      case MSH_PHYSICAL_LINE:    ge = getEdgeByTag(abs(num)); break; 
+      case MSH_PHYSICAL_LINE:    ge = getEdgeByTag(abs(num)); break;
       case MSH_PHYSICAL_SURFACE: ge = getFaceByTag(abs(num)); break;
       case MSH_PHYSICAL_VOLUME:  ge = getRegionByTag(abs(num)); break;
       }
       int pnum = sign(num) * p->Num;
-      if(ge && std::find(ge->physicals.begin(), ge->physicals.end(), pnum) == 
+      if(ge && std::find(ge->physicals.begin(), ge->physicals.end(), pnum) ==
          ge->physicals.end())
         ge->physicals.push_back(pnum);
     }
@@ -333,8 +333,8 @@ class writePhysicalGroupGEO {
                         std::map<int, std::string> &o,
                         std::map<std::pair<int, int>, std::string> &n)
     : dim(i), printLabels(labels), oldLabels(o), newLabels(n)
-  { 
-    geo = fp ? fp : stdout; 
+  {
+    geo = fp ? fp : stdout;
   }
   void operator () (std::pair<const int, std::vector<GEntity *> > &g)
   {
@@ -399,18 +399,18 @@ int GModel::writeGEO(const std::string &name, bool printLabels)
   std::map<int, std::string> labels;
 #if defined(HAVE_PARSER)
   // get "old-style" labels from parser
-  for(std::map<std::string, std::vector<double> >::iterator it = gmsh_yysymbols.begin();
+  for(std::map<std::string, gmsh_yysymbol>::iterator it = gmsh_yysymbols.begin();
       it != gmsh_yysymbols.end(); ++it)
-    for(unsigned int i = 0; i < it->second.size(); i++)
-      labels[(int)it->second[i]] = it->first;
+    for(unsigned int i = 0; i < it->second.value.size(); i++)
+      labels[(int)it->second.value[i]] = it->first;
 #endif
-  
+
   std::map<int, std::vector<GEntity*> > groups[4];
   getPhysicalGroups(groups);
   for(int i = 0; i < 4; i++)
-    std::for_each(groups[i].begin(), groups[i].end(), 
+    std::for_each(groups[i].begin(), groups[i].end(),
                   writePhysicalGroupGEO(fp, i, printLabels, labels, physicalNames));
-  
+
   std::for_each(getFields()->begin(), getFields()->end(), writeFieldGEO(fp));
   if(getFields()->background_field > 0)
     fprintf(fp, "Background Field = %i;\n", getFields()->background_field);
diff --git a/Parser/Gmsh.l b/Parser/Gmsh.l
index b69e61caba7c25c82c1cfc0b38a7689446ad101b..d5aa4fc8e32ffc180ef5a026c1fce9731f4e04f9 100644
--- a/Parser/Gmsh.l
+++ b/Parser/Gmsh.l
@@ -158,6 +158,7 @@ Knots			return tNurbsKnots;
 
 Length                  return tLength;
 Line                    return tLine;
+List                    return tList;
 Log                     return tLog;
 Log10                   return tLog10;
 Layers                  return tLayers;
@@ -258,7 +259,7 @@ void parsestring(char endchar)
 {
   int c;
   char tmp[1024];
-  
+
   // Note that we keep special characters (end-of-line \n, tabs \t,
   // etc.) "as is" in the output string: see yyinput() above
   int i = 0;
diff --git a/Parser/Gmsh.tab.cpp b/Parser/Gmsh.tab.cpp
index ec9882488a5b16e6af5a96eb2dfcf93f09fe6099..c2f2fdd4e6b5f00a4013e0edbcd064ce97965bfd 100644
--- a/Parser/Gmsh.tab.cpp
+++ b/Parser/Gmsh.tab.cpp
@@ -137,7 +137,7 @@
 std::string gmsh_yyname;
 int gmsh_yyerrorstate = 0;
 int gmsh_yyviewindex = 0;
-std::map<std::string, std::vector<double> > gmsh_yysymbols;
+std::map<std::string, gmsh_yysymbol> gmsh_yysymbols;
 
 // Static parser variables (accessible only in this file)
 static std::map<std::string, std::string> gmsh_yystringsymbols;
@@ -226,110 +226,111 @@ fullMatrix<double> ListOfListOfDouble2Matrix(List_T *list);
      tFmod = 287,
      tModulo = 288,
      tHypot = 289,
-     tPrintf = 290,
-     tSprintf = 291,
-     tStrCat = 292,
-     tStrPrefix = 293,
-     tStrRelative = 294,
-     tBoundingBox = 295,
-     tDraw = 296,
-     tToday = 297,
-     tSyncModel = 298,
-     tCreateTopology = 299,
-     tCreateTopologyNoHoles = 300,
-     tDistanceFunction = 301,
-     tDefineConstant = 302,
-     tPoint = 303,
-     tCircle = 304,
-     tEllipse = 305,
-     tLine = 306,
-     tSphere = 307,
-     tPolarSphere = 308,
-     tSurface = 309,
-     tSpline = 310,
-     tVolume = 311,
-     tCharacteristic = 312,
-     tLength = 313,
-     tParametric = 314,
-     tElliptic = 315,
-     tRefineMesh = 316,
-     tPlane = 317,
-     tRuled = 318,
-     tTransfinite = 319,
-     tComplex = 320,
-     tPhysical = 321,
-     tCompound = 322,
-     tPeriodic = 323,
-     tUsing = 324,
-     tPlugin = 325,
-     tDegenerated = 326,
-     tRotate = 327,
-     tTranslate = 328,
-     tSymmetry = 329,
-     tDilate = 330,
-     tExtrude = 331,
-     tLevelset = 332,
-     tRecombine = 333,
-     tSmoother = 334,
-     tSplit = 335,
-     tDelete = 336,
-     tCoherence = 337,
-     tIntersect = 338,
-     tLayers = 339,
-     tHole = 340,
-     tAlias = 341,
-     tAliasWithOptions = 342,
-     tQuadTriDbl = 343,
-     tQuadTriSngl = 344,
-     tRecombLaterals = 345,
-     tTransfQuadTri = 346,
-     tText2D = 347,
-     tText3D = 348,
-     tInterpolationScheme = 349,
-     tTime = 350,
-     tCombine = 351,
-     tBSpline = 352,
-     tBezier = 353,
-     tNurbs = 354,
-     tNurbsOrder = 355,
-     tNurbsKnots = 356,
-     tColor = 357,
-     tColorTable = 358,
-     tFor = 359,
-     tIn = 360,
-     tEndFor = 361,
-     tIf = 362,
-     tEndIf = 363,
-     tExit = 364,
-     tField = 365,
-     tReturn = 366,
-     tCall = 367,
-     tFunction = 368,
-     tShow = 369,
-     tHide = 370,
-     tGetValue = 371,
-     tGetEnv = 372,
-     tGetString = 373,
-     tGMSH_MAJOR_VERSION = 374,
-     tGMSH_MINOR_VERSION = 375,
-     tGMSH_PATCH_VERSION = 376,
-     tHomRank = 377,
-     tHomGen = 378,
-     tHomCut = 379,
-     tHomSeq = 380,
-     tAFFECTDIVIDE = 381,
-     tAFFECTTIMES = 382,
-     tAFFECTMINUS = 383,
-     tAFFECTPLUS = 384,
-     tOR = 385,
-     tAND = 386,
-     tNOTEQUAL = 387,
-     tEQUAL = 388,
-     tGREATEROREQUAL = 389,
-     tLESSOREQUAL = 390,
-     UNARYPREC = 391,
-     tMINUSMINUS = 392,
-     tPLUSPLUS = 393
+     tList = 290,
+     tPrintf = 291,
+     tSprintf = 292,
+     tStrCat = 293,
+     tStrPrefix = 294,
+     tStrRelative = 295,
+     tBoundingBox = 296,
+     tDraw = 297,
+     tToday = 298,
+     tSyncModel = 299,
+     tCreateTopology = 300,
+     tCreateTopologyNoHoles = 301,
+     tDistanceFunction = 302,
+     tDefineConstant = 303,
+     tPoint = 304,
+     tCircle = 305,
+     tEllipse = 306,
+     tLine = 307,
+     tSphere = 308,
+     tPolarSphere = 309,
+     tSurface = 310,
+     tSpline = 311,
+     tVolume = 312,
+     tCharacteristic = 313,
+     tLength = 314,
+     tParametric = 315,
+     tElliptic = 316,
+     tRefineMesh = 317,
+     tPlane = 318,
+     tRuled = 319,
+     tTransfinite = 320,
+     tComplex = 321,
+     tPhysical = 322,
+     tCompound = 323,
+     tPeriodic = 324,
+     tUsing = 325,
+     tPlugin = 326,
+     tDegenerated = 327,
+     tRotate = 328,
+     tTranslate = 329,
+     tSymmetry = 330,
+     tDilate = 331,
+     tExtrude = 332,
+     tLevelset = 333,
+     tRecombine = 334,
+     tSmoother = 335,
+     tSplit = 336,
+     tDelete = 337,
+     tCoherence = 338,
+     tIntersect = 339,
+     tLayers = 340,
+     tHole = 341,
+     tAlias = 342,
+     tAliasWithOptions = 343,
+     tQuadTriDbl = 344,
+     tQuadTriSngl = 345,
+     tRecombLaterals = 346,
+     tTransfQuadTri = 347,
+     tText2D = 348,
+     tText3D = 349,
+     tInterpolationScheme = 350,
+     tTime = 351,
+     tCombine = 352,
+     tBSpline = 353,
+     tBezier = 354,
+     tNurbs = 355,
+     tNurbsOrder = 356,
+     tNurbsKnots = 357,
+     tColor = 358,
+     tColorTable = 359,
+     tFor = 360,
+     tIn = 361,
+     tEndFor = 362,
+     tIf = 363,
+     tEndIf = 364,
+     tExit = 365,
+     tField = 366,
+     tReturn = 367,
+     tCall = 368,
+     tFunction = 369,
+     tShow = 370,
+     tHide = 371,
+     tGetValue = 372,
+     tGetEnv = 373,
+     tGetString = 374,
+     tGMSH_MAJOR_VERSION = 375,
+     tGMSH_MINOR_VERSION = 376,
+     tGMSH_PATCH_VERSION = 377,
+     tHomRank = 378,
+     tHomGen = 379,
+     tHomCut = 380,
+     tHomSeq = 381,
+     tAFFECTDIVIDE = 382,
+     tAFFECTTIMES = 383,
+     tAFFECTMINUS = 384,
+     tAFFECTPLUS = 385,
+     tOR = 386,
+     tAND = 387,
+     tNOTEQUAL = 388,
+     tEQUAL = 389,
+     tGREATEROREQUAL = 390,
+     tLESSOREQUAL = 391,
+     UNARYPREC = 392,
+     tMINUSMINUS = 393,
+     tPLUSPLUS = 394
    };
 #endif
 
@@ -353,7 +354,7 @@ typedef union YYSTYPE
 
 
 /* Line 214 of yacc.c  */
-#line 357 "Gmsh.tab.cpp"
+#line 358 "Gmsh.tab.cpp"
 } YYSTYPE;
 # define YYSTYPE_IS_TRIVIAL 1
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
@@ -365,7 +366,7 @@ typedef union YYSTYPE
 
 
 /* Line 264 of yacc.c  */
-#line 369 "Gmsh.tab.cpp"
+#line 370 "Gmsh.tab.cpp"
 
 #ifdef short
 # undef short
@@ -580,20 +581,20 @@ union yyalloc
 /* YYFINAL -- State number of the termination state.  */
 #define YYFINAL  5
 /* YYLAST -- Last index in YYTABLE.  */
-#define YYLAST   7313
+#define YYLAST   7329
 
 /* YYNTOKENS -- Number of terminals.  */
-#define YYNTOKENS  159
+#define YYNTOKENS  160
 /* YYNNTS -- Number of nonterminals.  */
 #define YYNNTS  86
 /* YYNRULES -- Number of rules.  */
-#define YYNRULES  413
+#define YYNRULES  412
 /* YYNRULES -- Number of states.  */
-#define YYNSTATES  1454
+#define YYNSTATES  1452
 
 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
 #define YYUNDEFTOK  2
-#define YYMAXUTOK   393
+#define YYMAXUTOK   394
 
 #define YYTRANSLATE(YYX)						\
   ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
@@ -604,16 +605,16 @@ static const yytype_uint8 yytranslate[] =
        0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,   144,     2,   154,     2,   143,     2,     2,
-     149,   150,   141,   139,   155,   140,   153,   142,     2,     2,
+       2,     2,     2,   145,     2,   155,     2,   144,     2,     2,
+     150,   151,   142,   140,   156,   141,   154,   143,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-     135,     2,   136,   130,     2,     2,     2,     2,     2,     2,
+     136,     2,   137,   131,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,   151,     2,   152,   148,     2,     2,     2,     2,     2,
+       2,   152,     2,   153,   149,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
-       2,     2,     2,   156,     2,   157,   158,     2,     2,     2,
+       2,     2,     2,   157,     2,   158,   159,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
        2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
@@ -639,8 +640,8 @@ static const yytype_uint8 yytranslate[] =
       95,    96,    97,    98,    99,   100,   101,   102,   103,   104,
      105,   106,   107,   108,   109,   110,   111,   112,   113,   114,
      115,   116,   117,   118,   119,   120,   121,   122,   123,   124,
-     125,   126,   127,   128,   129,   131,   132,   133,   134,   137,
-     138,   145,   146,   147
+     125,   126,   127,   128,   129,   130,   132,   133,   134,   135,
+     138,   139,   146,   147,   148
 };
 
 #if YYDEBUG
@@ -654,284 +655,283 @@ static const yytype_uint16 yyprhs[] =
       90,    97,   104,   105,   108,   111,   114,   117,   120,   122,
      126,   128,   132,   133,   134,   145,   147,   151,   152,   166,
      168,   172,   173,   189,   198,   213,   214,   221,   223,   225,
-     227,   229,   231,   233,   235,   241,   246,   254,   264,   271,
-     278,   285,   289,   296,   301,   308,   318,   325,   335,   341,
-     350,   359,   371,   378,   388,   394,   402,   412,   422,   434,
-     444,   454,   455,   457,   458,   462,   468,   469,   479,   480,
-     483,   487,   491,   493,   495,   496,   502,   503,   506,   514,
-     515,   525,   532,   540,   545,   553,   562,   571,   579,   587,
-     599,   608,   617,   618,   628,   637,   647,   651,   656,   667,
-     675,   683,   692,   701,   714,   715,   725,   734,   742,   751,
-     752,   762,   768,   780,   786,   796,   801,   811,   821,   823,
-     825,   826,   829,   836,   843,   850,   857,   866,   877,   892,
-     909,   922,   931,   940,   947,   962,   967,   974,   981,   985,
-     990,   996,  1000,  1004,  1009,  1014,  1018,  1026,  1034,  1038,
-    1046,  1050,  1053,  1056,  1059,  1075,  1078,  1081,  1084,  1087,
-    1094,  1103,  1112,  1123,  1125,  1128,  1130,  1134,  1139,  1141,
-    1147,  1159,  1173,  1174,  1182,  1183,  1197,  1198,  1214,  1215,
-    1222,  1231,  1240,  1249,  1262,  1275,  1288,  1303,  1318,  1333,
-    1334,  1347,  1348,  1361,  1362,  1375,  1376,  1393,  1394,  1411,
-    1412,  1429,  1430,  1449,  1450,  1469,  1470,  1489,  1491,  1494,
-    1500,  1508,  1518,  1521,  1524,  1528,  1531,  1535,  1545,  1552,
-    1553,  1557,  1558,  1560,  1561,  1564,  1565,  1568,  1576,  1583,
-    1592,  1598,  1602,  1608,  1615,  1622,  1635,  1646,  1657,  1668,
-    1679,  1682,  1686,  1693,  1705,  1717,  1729,  1741,  1743,  1747,
-    1750,  1753,  1756,  1760,  1764,  1768,  1772,  1776,  1780,  1784,
-    1788,  1792,  1796,  1800,  1804,  1808,  1812,  1818,  1823,  1828,
-    1833,  1838,  1843,  1848,  1853,  1858,  1863,  1868,  1875,  1880,
-    1885,  1890,  1895,  1900,  1905,  1912,  1919,  1926,  1931,  1936,
-    1941,  1946,  1951,  1956,  1961,  1966,  1971,  1976,  1981,  1988,
-    1993,  1998,  2003,  2008,  2013,  2018,  2025,  2032,  2039,  2044,
-    2046,  2048,  2050,  2052,  2054,  2056,  2058,  2060,  2066,  2071,
-    2076,  2079,  2085,  2089,  2096,  2101,  2109,  2116,  2118,  2121,
-    2124,  2128,  2132,  2144,  2154,  2162,  2170,  2172,  2176,  2178,
-    2180,  2183,  2187,  2192,  2198,  2200,  2202,  2205,  2209,  2213,
-    2219,  2224,  2227,  2230,  2233,  2236,  2238,  2240,  2244,  2251,
-    2253,  2255,  2259,  2263,  2273,  2281,  2283,  2289,  2293,  2300,
-    2302,  2306,  2308,  2310,  2314,  2321,  2323,  2325,  2330,  2337,
-    2344,  2349,  2354,  2359
+     227,   229,   231,   233,   235,   241,   246,   253,   261,   271,
+     275,   282,   287,   294,   304,   311,   321,   327,   336,   345,
+     357,   364,   374,   380,   388,   398,   408,   420,   430,   440,
+     441,   443,   444,   448,   454,   455,   465,   466,   469,   473,
+     477,   479,   481,   482,   488,   489,   492,   500,   501,   511,
+     518,   526,   531,   539,   548,   557,   565,   573,   585,   594,
+     603,   604,   614,   623,   633,   637,   642,   653,   661,   669,
+     678,   687,   700,   701,   711,   720,   728,   737,   738,   748,
+     754,   766,   772,   782,   787,   797,   807,   809,   811,   812,
+     815,   822,   829,   836,   843,   852,   863,   878,   895,   908,
+     917,   926,   933,   948,   953,   960,   967,   971,   976,   982,
+     986,   990,   995,  1000,  1004,  1012,  1020,  1024,  1032,  1036,
+    1039,  1042,  1045,  1061,  1064,  1067,  1070,  1073,  1080,  1089,
+    1098,  1109,  1111,  1114,  1116,  1120,  1125,  1127,  1133,  1145,
+    1159,  1160,  1168,  1169,  1183,  1184,  1200,  1201,  1208,  1217,
+    1226,  1235,  1248,  1261,  1274,  1289,  1304,  1319,  1320,  1333,
+    1334,  1347,  1348,  1361,  1362,  1379,  1380,  1397,  1398,  1415,
+    1416,  1435,  1436,  1455,  1456,  1475,  1477,  1480,  1486,  1494,
+    1504,  1507,  1510,  1514,  1517,  1521,  1531,  1538,  1539,  1543,
+    1544,  1546,  1547,  1550,  1551,  1554,  1562,  1569,  1578,  1584,
+    1588,  1594,  1601,  1608,  1621,  1632,  1643,  1654,  1665,  1668,
+    1672,  1679,  1691,  1703,  1715,  1727,  1729,  1733,  1736,  1739,
+    1742,  1746,  1750,  1754,  1758,  1762,  1766,  1770,  1774,  1778,
+    1782,  1786,  1790,  1794,  1798,  1804,  1809,  1814,  1819,  1824,
+    1829,  1834,  1839,  1844,  1849,  1854,  1861,  1866,  1871,  1876,
+    1881,  1886,  1891,  1898,  1905,  1912,  1917,  1922,  1927,  1932,
+    1937,  1942,  1947,  1952,  1957,  1962,  1967,  1974,  1979,  1984,
+    1989,  1994,  1999,  2004,  2011,  2018,  2025,  2030,  2032,  2034,
+    2036,  2038,  2040,  2042,  2044,  2046,  2052,  2057,  2062,  2065,
+    2071,  2075,  2082,  2087,  2095,  2102,  2104,  2107,  2110,  2114,
+    2118,  2130,  2140,  2148,  2156,  2158,  2162,  2164,  2166,  2169,
+    2173,  2178,  2184,  2186,  2188,  2191,  2195,  2199,  2205,  2210,
+    2213,  2216,  2219,  2222,  2224,  2226,  2230,  2235,  2242,  2244,
+    2246,  2250,  2254,  2264,  2272,  2274,  2280,  2284,  2291,  2293,
+    2297,  2299,  2301,  2305,  2312,  2314,  2316,  2321,  2328,  2335,
+    2340,  2345,  2350
 };
 
 /* YYRHS -- A `-1'-separated list of the rules' RHS.  */
 static const yytype_int16 yyrhs[] =
 {
-     160,     0,    -1,   161,    -1,     1,     6,    -1,    -1,   161,
-     162,    -1,   165,    -1,   164,    -1,   183,    -1,   192,    -1,
-     197,    -1,   201,    -1,   202,    -1,   203,    -1,   206,    -1,
-     226,    -1,   227,    -1,   228,    -1,   229,    -1,   205,    -1,
-     204,    -1,   200,    -1,   230,    -1,   136,    -1,   136,   136,
-      -1,    35,   149,     5,   150,     6,    -1,    35,   149,     5,
-     150,   163,   243,     6,    -1,    35,   149,     5,   155,   239,
-     150,     6,    -1,    35,   149,     5,   155,   239,   150,   163,
-     243,     6,    -1,     4,     5,   156,   166,   157,     6,    -1,
-      86,     4,   151,   231,   152,     6,    -1,    87,     4,   151,
-     231,   152,     6,    -1,    -1,   166,   169,    -1,   166,   173,
-      -1,   166,   176,    -1,   166,   178,    -1,   166,   179,    -1,
-     231,    -1,   167,   155,   231,    -1,   231,    -1,   168,   155,
-     231,    -1,    -1,    -1,     4,   170,   149,   167,   150,   171,
-     156,   168,   157,     6,    -1,   243,    -1,   172,   155,   243,
-      -1,    -1,    92,   149,   231,   155,   231,   155,   231,   150,
-     174,   156,   172,   157,     6,    -1,   243,    -1,   175,   155,
-     243,    -1,    -1,    93,   149,   231,   155,   231,   155,   231,
-     155,   231,   150,   177,   156,   175,   157,     6,    -1,    94,
-     156,   235,   157,   156,   235,   157,     6,    -1,    94,   156,
-     235,   157,   156,   235,   157,   156,   235,   157,   156,   235,
-     157,     6,    -1,    -1,    95,   180,   156,   168,   157,     6,
-      -1,     7,    -1,   129,    -1,   128,    -1,   127,    -1,   126,
-      -1,   147,    -1,   146,    -1,    47,   151,   185,   152,     6,
-      -1,     4,   181,   231,     6,    -1,     4,   151,   231,   152,
-     181,   231,     6,    -1,     4,   151,   156,   239,   157,   152,
-     181,   236,     6,    -1,     4,   151,   152,     7,   236,     6,
-      -1,     4,   151,   152,   129,   236,     6,    -1,     4,   151,
-     152,   128,   236,     6,    -1,     4,   182,     6,    -1,     4,
-     151,   231,   152,   182,     6,    -1,     4,     7,   244,     6,
-      -1,     4,   153,     4,     7,   244,     6,    -1,     4,   151,
-     231,   152,   153,     4,     7,   244,     6,    -1,     4,   153,
-       4,   181,   231,     6,    -1,     4,   151,   231,   152,   153,
-       4,   181,   231,     6,    -1,     4,   153,     4,   182,     6,
-      -1,     4,   151,   231,   152,   153,     4,   182,     6,    -1,
-       4,   153,   102,   153,     4,     7,   240,     6,    -1,     4,
-     151,   231,   152,   153,   102,   153,     4,     7,   240,     6,
-      -1,     4,   153,   103,     7,   241,     6,    -1,     4,   151,
-     231,   152,   153,   103,     7,   241,     6,    -1,     4,   110,
-       7,   231,     6,    -1,   110,   151,   231,   152,     7,     4,
-       6,    -1,   110,   151,   231,   152,   153,     4,     7,   231,
-       6,    -1,   110,   151,   231,   152,   153,     4,     7,   244,
-       6,    -1,   110,   151,   231,   152,   153,     4,     7,   156,
-     239,   157,     6,    -1,    70,   149,     4,   150,   153,     4,
-       7,   231,     6,    -1,    70,   149,     4,   150,   153,     4,
-       7,   244,     6,    -1,    -1,   155,    -1,    -1,   185,   184,
-       4,    -1,   185,   184,     4,     7,   231,    -1,    -1,   185,
-     184,     4,     7,   156,   231,   186,   187,   157,    -1,    -1,
-     187,   188,    -1,   155,     4,   236,    -1,   155,     4,     5,
-      -1,   231,    -1,   244,    -1,    -1,   105,    52,   156,   231,
-     157,    -1,    -1,    62,   233,    -1,    48,   149,   231,   150,
-       7,   233,     6,    -1,    -1,    66,    48,   193,   149,   189,
-     150,     7,   236,     6,    -1,    57,    58,   236,     7,   231,
-       6,    -1,    51,   149,   231,   150,     7,   236,     6,    -1,
-      71,    51,   236,     6,    -1,    55,   149,   231,   150,     7,
-     236,     6,    -1,    49,   149,   231,   150,     7,   236,   191,
-       6,    -1,    50,   149,   231,   150,     7,   236,   191,     6,
-      -1,    97,   149,   231,   150,     7,   236,     6,    -1,    98,
-     149,   231,   150,     7,   236,     6,    -1,    99,   149,   231,
-     150,     7,   236,   101,   236,   100,   231,     6,    -1,    51,
-       4,   149,   231,   150,     7,   236,     6,    -1,    67,    51,
-     149,   231,   150,     7,   236,     6,    -1,    -1,    66,    51,
-     194,   149,   189,   150,     7,   236,     6,    -1,    62,    54,
-     149,   231,   150,     7,   236,     6,    -1,    63,    54,   149,
-     231,   150,     7,   236,   190,     6,    -1,    12,    13,     6,
-      -1,    13,    54,   231,     6,    -1,    59,    54,   149,   231,
-     150,     7,     5,     5,     5,     6,    -1,    52,   149,   231,
-     150,     7,   236,     6,    -1,    53,   149,   231,   150,     7,
-     236,     6,    -1,    54,     4,   149,   231,   150,     7,   236,
-       6,    -1,    67,    54,   149,   231,   150,     7,   236,     6,
-      -1,    67,    54,   149,   231,   150,     7,   236,     4,   156,
-     235,   157,     6,    -1,    -1,    66,    54,   195,   149,   189,
-     150,     7,   236,     6,    -1,    65,    56,   149,   231,   150,
-       7,   236,     6,    -1,    56,   149,   231,   150,     7,   236,
-       6,    -1,    67,    56,   149,   231,   150,     7,   236,     6,
-      -1,    -1,    66,    56,   196,   149,   189,   150,     7,   236,
-       6,    -1,    73,   233,   156,   198,   157,    -1,    72,   156,
-     233,   155,   233,   155,   231,   157,   156,   198,   157,    -1,
-      74,   233,   156,   198,   157,    -1,    75,   156,   233,   155,
-     231,   157,   156,   198,   157,    -1,     4,   156,   198,   157,
-      -1,    83,    51,   156,   239,   157,    54,   156,   231,   157,
-      -1,    80,    51,   149,   231,   150,   156,   239,   157,     6,
-      -1,   199,    -1,   197,    -1,    -1,   199,   192,    -1,   199,
-      48,   156,   239,   157,     6,    -1,   199,    51,   156,   239,
-     157,     6,    -1,   199,    54,   156,   239,   157,     6,    -1,
-     199,    56,   156,   239,   157,     6,    -1,    77,    62,   149,
-     231,   150,     7,   236,     6,    -1,    77,    48,   149,   231,
-     150,     7,   156,   235,   157,     6,    -1,    77,    62,   149,
-     231,   150,     7,   156,   233,   155,   233,   155,   239,   157,
-       6,    -1,    77,    62,   149,   231,   150,     7,   156,   233,
-     155,   233,   155,   233,   155,   239,   157,     6,    -1,    77,
-      52,   149,   231,   150,     7,   156,   233,   155,   239,   157,
-       6,    -1,    77,     4,   149,   231,   150,     7,   236,     6,
-      -1,    77,     4,   149,   231,   150,     7,     5,     6,    -1,
-      77,     4,   156,   231,   157,     6,    -1,    77,     4,   149,
-     231,   150,     7,   156,   233,   155,   233,   155,   239,   157,
-       6,    -1,    81,   156,   199,   157,    -1,    81,   110,   151,
-     231,   152,     6,    -1,    81,     4,   151,   231,   152,     6,
-      -1,    81,     4,     6,    -1,    81,     4,     4,     6,    -1,
-     102,   240,   156,   199,   157,    -1,   114,     5,     6,    -1,
-     115,     5,     6,    -1,   114,   156,   199,   157,    -1,   115,
-     156,   199,   157,    -1,     4,   244,     6,    -1,     4,     4,
-     151,   231,   152,   243,     6,    -1,     4,     4,     4,   151,
-     231,   152,     6,    -1,     4,   231,     6,    -1,    70,   149,
-       4,   150,   153,     4,     6,    -1,    96,     4,     6,    -1,
-     109,     6,    -1,    43,     6,    -1,    40,     6,    -1,    40,
-     156,   231,   155,   231,   155,   231,   155,   231,   155,   231,
-     155,   231,   157,     6,    -1,    41,     6,    -1,    44,     6,
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+       6,    -1,    97,     4,     6,    -1,   110,     6,    -1,    44,
+       6,    -1,    41,     6,    -1,    41,   157,   232,   156,   232,
+     156,   232,   156,   232,   156,   232,   156,   232,   158,     6,
+      -1,    42,     6,    -1,    45,     6,    -1,    46,     6,    -1,
+      62,     6,    -1,   105,   150,   232,     8,   232,   151,    -1,
+     105,   150,   232,     8,   232,     8,   232,   151,    -1,   105,
+       4,   106,   157,   232,     8,   232,   158,    -1,   105,     4,
+     106,   157,   232,     8,   232,     8,   232,   158,    -1,   107,
+      -1,   114,     4,    -1,   112,    -1,   113,     4,     6,    -1,
+     108,   150,   232,   151,    -1,   109,    -1,    77,   234,   157,
+     200,   158,    -1,    77,   157,   234,   156,   234,   156,   232,
+     158,   157,   200,   158,    -1,    77,   157,   234,   156,   234,
+     156,   234,   156,   232,   158,   157,   200,   158,    -1,    -1,
+      77,   234,   157,   200,   208,   221,   158,    -1,    -1,    77,
+     157,   234,   156,   234,   156,   232,   158,   157,   200,   209,
+     221,   158,    -1,    -1,    77,   157,   234,   156,   234,   156,
+     234,   156,   232,   158,   157,   200,   210,   221,   158,    -1,
+      -1,    77,   157,   200,   211,   221,   158,    -1,    77,    49,
+     157,   232,   156,   234,   158,     6,    -1,    77,    52,   157,
+     232,   156,   234,   158,     6,    -1,    77,    55,   157,   232,
+     156,   234,   158,     6,    -1,    77,    49,   157,   232,   156,
+     234,   156,   234,   156,   232,   158,     6,    -1,    77,    52,
+     157,   232,   156,   234,   156,   234,   156,   232,   158,     6,
+      -1,    77,    55,   157,   232,   156,   234,   156,   234,   156,
+     232,   158,     6,    -1,    77,    49,   157,   232,   156,   234,
+     156,   234,   156,   234,   156,   232,   158,     6,    -1,    77,
+      52,   157,   232,   156,   234,   156,   234,   156,   234,   156,
+     232,   158,     6,    -1,    77,    55,   157,   232,   156,   234,
+     156,   234,   156,   234,   156,   232,   158,     6,    -1,    -1,
+      77,    49,   157,   232,   156,   234,   158,   212,   157,   221,
+     158,     6,    -1,    -1,    77,    52,   157,   232,   156,   234,
+     158,   213,   157,   221,   158,     6,    -1,    -1,    77,    55,
+     157,   232,   156,   234,   158,   214,   157,   221,   158,     6,
+      -1,    -1,    77,    49,   157,   232,   156,   234,   156,   234,
+     156,   232,   158,   215,   157,   221,   158,     6,    -1,    -1,
+      77,    52,   157,   232,   156,   234,   156,   234,   156,   232,
+     158,   216,   157,   221,   158,     6,    -1,    -1,    77,    55,
+     157,   232,   156,   234,   156,   234,   156,   232,   158,   217,
+     157,   221,   158,     6,    -1,    -1,    77,    49,   157,   232,
+     156,   234,   156,   234,   156,   234,   156,   232,   158,   218,
+     157,   221,   158,     6,    -1,    -1,    77,    52,   157,   232,
+     156,   234,   156,   234,   156,   234,   156,   232,   158,   219,
+     157,   221,   158,     6,    -1,    -1,    77,    55,   157,   232,
+     156,   234,   156,   234,   156,   234,   156,   232,   158,   220,
+     157,   221,   158,     6,    -1,   222,    -1,   221,   222,    -1,
+      85,   157,   232,   158,     6,    -1,    85,   157,   237,   156,
+     237,   158,     6,    -1,    85,   157,   237,   156,   237,   156,
+     237,   158,     6,    -1,    79,     6,    -1,    89,     6,    -1,
+      89,    91,     6,    -1,    90,     6,    -1,    90,    91,     6,
+      -1,    86,   150,   232,   151,     7,   237,    70,   232,     6,
+      -1,    70,     4,   152,   232,   153,     6,    -1,    -1,    70,
+       4,   232,    -1,    -1,     4,    -1,    -1,     7,   237,    -1,
+      -1,     7,   232,    -1,    65,    52,   238,     7,   232,   223,
+       6,    -1,    65,    55,   238,   225,   224,     6,    -1,    61,
+      55,   157,   232,   158,     7,   237,     6,    -1,    65,    57,
+     238,   225,     6,    -1,    92,   238,     6,    -1,    79,    55,
+     238,   226,     6,    -1,    80,    55,   237,     7,   232,     6,
+      -1,    69,    52,   237,     7,   237,     6,    -1,    69,    55,
+     232,   157,   240,   158,     7,   232,   157,   240,   158,     6,
+      -1,    49,   157,   240,   158,   106,    55,   157,   232,   158,
+       6,    -1,    52,   157,   240,   158,   106,    55,   157,   232,
+     158,     6,    -1,    52,   157,   240,   158,   106,    57,   157,
+     232,   158,     6,    -1,    55,   157,   240,   158,   106,    57,
+     157,   232,   158,     6,    -1,    83,     6,    -1,    83,     4,
+       6,    -1,    83,    49,   157,   240,   158,     6,    -1,   123,
+     150,   244,   151,     7,   157,   237,   156,   237,   158,     6,
+      -1,   124,   150,   244,   151,     7,   157,   237,   156,   237,
+     158,     6,    -1,   125,   150,   244,   151,     7,   157,   237,
+     156,   237,   158,     6,    -1,   126,   150,   244,   151,     7,
+     157,   237,   156,   237,   158,     6,    -1,   233,    -1,   150,
+     232,   151,    -1,   141,   232,    -1,   140,   232,    -1,   145,
+     232,    -1,   232,   141,   232,    -1,   232,   140,   232,    -1,
+     232,   142,   232,    -1,   232,   143,   232,    -1,   232,   144,
+     232,    -1,   232,   149,   232,    -1,   232,   136,   232,    -1,
+     232,   137,   232,    -1,   232,   139,   232,    -1,   232,   138,
+     232,    -1,   232,   135,   232,    -1,   232,   134,   232,    -1,
+     232,   133,   232,    -1,   232,   132,   232,    -1,   232,   131,
+     232,     8,   232,    -1,    14,   150,   232,   151,    -1,    15,
+     150,   232,   151,    -1,    16,   150,   232,   151,    -1,    17,
+     150,   232,   151,    -1,    18,   150,   232,   151,    -1,    19,
+     150,   232,   151,    -1,    20,   150,   232,   151,    -1,    21,
+     150,   232,   151,    -1,    22,   150,   232,   151,    -1,    24,
+     150,   232,   151,    -1,    25,   150,   232,   156,   232,   151,
+      -1,    26,   150,   232,   151,    -1,    27,   150,   232,   151,
+      -1,    28,   150,   232,   151,    -1,    29,   150,   232,   151,
+      -1,    30,   150,   232,   151,    -1,    31,   150,   232,   151,
+      -1,    32,   150,   232,   156,   232,   151,    -1,    33,   150,
+     232,   156,   232,   151,    -1,    34,   150,   232,   156,   232,
+     151,    -1,    23,   150,   232,   151,    -1,    14,   152,   232,
+     153,    -1,    15,   152,   232,   153,    -1,    16,   152,   232,
+     153,    -1,    17,   152,   232,   153,    -1,    18,   152,   232,
+     153,    -1,    19,   152,   232,   153,    -1,    20,   152,   232,
+     153,    -1,    21,   152,   232,   153,    -1,    22,   152,   232,
+     153,    -1,    24,   152,   232,   153,    -1,    25,   152,   232,
+     156,   232,   153,    -1,    26,   152,   232,   153,    -1,    27,
+     152,   232,   153,    -1,    28,   152,   232,   153,    -1,    29,
+     152,   232,   153,    -1,    30,   152,   232,   153,    -1,    31,
+     152,   232,   153,    -1,    32,   152,   232,   156,   232,   153,
+      -1,    33,   152,   232,   156,   232,   153,    -1,    34,   152,
+     232,   156,   232,   153,    -1,    23,   152,   232,   153,    -1,
+       3,    -1,     9,    -1,    10,    -1,    11,    -1,   120,    -1,
+     121,    -1,   122,    -1,     4,    -1,     4,   159,   157,   232,
+     158,    -1,     4,   152,   232,   153,    -1,   155,     4,   152,
+     153,    -1,     4,   183,    -1,     4,   152,   232,   153,   183,
+      -1,     4,   154,     4,    -1,     4,   152,   232,   153,   154,
+       4,    -1,     4,   154,     4,   183,    -1,     4,   152,   232,
+     153,   154,     4,   183,    -1,   117,   150,   244,   156,   232,
+     151,    -1,   235,    -1,   141,   234,    -1,   140,   234,    -1,
+     234,   141,   234,    -1,   234,   140,   234,    -1,   157,   232,
+     156,   232,   156,   232,   156,   232,   156,   232,   158,    -1,
+     157,   232,   156,   232,   156,   232,   156,   232,   158,    -1,
+     157,   232,   156,   232,   156,   232,   158,    -1,   150,   232,
+     156,   232,   156,   232,   151,    -1,   237,    -1,   236,   156,
+     237,    -1,   232,    -1,   239,    -1,   157,   158,    -1,   157,
+     240,   158,    -1,   141,   157,   240,   158,    -1,   232,   142,
+     157,   240,   158,    -1,   237,    -1,     5,    -1,   141,   239,
+      -1,   232,   142,   239,    -1,   232,     8,   232,    -1,   232,
+       8,   232,     8,   232,    -1,    49,   157,   232,   158,    -1,
+      49,     5,    -1,    52,     5,    -1,    55,     5,    -1,    57,
+       5,    -1,   198,    -1,   207,    -1,     4,   152,   153,    -1,
+      35,   152,     4,   153,    -1,     4,   152,   157,   240,   158,
+     153,    -1,   232,    -1,   239,    -1,   240,   156,   232,    -1,
+     240,   156,   239,    -1,   157,   232,   156,   232,   156,   232,
+     156,   232,   158,    -1,   157,   232,   156,   232,   156,   232,
+     158,    -1,     4,    -1,     4,   154,   103,   154,     4,    -1,
+     157,   243,   158,    -1,     4,   152,   232,   153,   154,   104,
+      -1,   241,    -1,   243,   156,   241,    -1,   245,    -1,     4,
+      -1,     4,   154,     4,    -1,     4,   152,   232,   153,   154,
+       4,    -1,     5,    -1,    43,    -1,   118,   150,   244,   151,
+      -1,   119,   150,   244,   156,   244,   151,    -1,    38,   150,
+     244,   156,   244,   151,    -1,    39,   150,   244,   151,    -1,
+      40,   150,   244,   151,    -1,    37,   150,   244,   151,    -1,
+      37,   150,   244,   156,   240,   151,    -1
 };
 
 /* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
@@ -943,42 +943,42 @@ static const yytype_uint16 yyrline[] =
      279,   290,   305,   310,   311,   312,   313,   314,   318,   320,
      325,   327,   333,   437,   332,   455,   462,   473,   472,   490,
      497,   508,   507,   524,   541,   564,   563,   577,   578,   579,
-     580,   581,   585,   586,   592,   594,   620,   647,   687,   697,
-     705,   718,   730,   742,   751,   757,   766,   784,   802,   811,
-     823,   828,   836,   856,   879,   890,   898,   920,   943,   971,
-     983,   997,   997,   999,  1001,  1012,  1024,  1023,  1036,  1037,
-    1041,  1052,  1065,  1069,  1080,  1083,  1096,  1099,  1109,  1133,
-    1132,  1152,  1174,  1192,  1213,  1231,  1261,  1291,  1309,  1327,
-    1353,  1371,  1390,  1389,  1412,  1430,  1469,  1475,  1481,  1488,
-    1513,  1538,  1555,  1572,  1604,  1603,  1627,  1645,  1662,  1679,
-    1678,  1704,  1709,  1714,  1719,  1724,  1747,  1753,  1764,  1765,
-    1770,  1773,  1777,  1800,  1823,  1846,  1874,  1895,  1918,  1939,
-    1961,  1981,  2093,  2112,  2150,  2259,  2268,  2274,  2289,  2317,
-    2334,  2348,  2354,  2360,  2369,  2383,  2425,  2442,  2457,  2476,
-    2488,  2512,  2516,  2523,  2529,  2534,  2540,  2544,  2548,  2558,
-    2575,  2592,  2611,  2630,  2660,  2668,  2674,  2681,  2685,  2694,
-    2702,  2710,  2719,  2718,  2732,  2731,  2745,  2744,  2758,  2757,
-    2770,  2777,  2784,  2791,  2798,  2805,  2812,  2819,  2826,  2834,
-    2833,  2846,  2845,  2858,  2857,  2870,  2869,  2882,  2881,  2894,
-    2893,  2906,  2905,  2918,  2917,  2930,  2929,  2945,  2948,  2954,
-    2963,  2983,  3006,  3010,  3014,  3018,  3022,  3026,  3045,  3058,
-    3061,  3077,  3080,  3093,  3096,  3102,  3105,  3112,  3168,  3238,
-    3243,  3310,  3346,  3389,  3414,  3441,  3485,  3508,  3531,  3534,
-    3543,  3547,  3557,  3594,  3631,  3667,  3702,  3742,  3743,  3744,
-    3745,  3746,  3747,  3748,  3749,  3750,  3757,  3758,  3759,  3760,
-    3761,  3762,  3763,  3764,  3765,  3766,  3767,  3768,  3769,  3770,
-    3771,  3772,  3773,  3774,  3775,  3776,  3777,  3778,  3779,  3780,
-    3781,  3782,  3783,  3784,  3785,  3786,  3787,  3788,  3790,  3791,
-    3792,  3793,  3794,  3795,  3796,  3797,  3798,  3799,  3800,  3801,
-    3802,  3803,  3804,  3805,  3806,  3807,  3808,  3809,  3810,  3819,
-    3820,  3821,  3822,  3823,  3824,  3825,  3829,  3848,  3866,  3881,
-    3891,  3907,  3925,  3930,  3935,  3945,  3955,  3963,  3967,  3971,
-    3975,  3979,  3986,  3990,  3994,  3998,  4005,  4010,  4017,  4022,
-    4026,  4031,  4035,  4043,  4054,  4058,  4070,  4078,  4086,  4093,
-    4104,  4124,  4128,  4132,  4136,  4140,  4150,  4160,  4170,  4190,
-    4195,  4199,  4203,  4215,  4219,  4231,  4238,  4248,  4252,  4267,
-    4272,  4279,  4283,  4296,  4304,  4315,  4319,  4327,  4335,  4343,
-    4351,  4365,  4379,  4383
+     580,   581,   585,   586,   592,   594,   657,   687,   720,   766,
+     781,   797,   806,   812,   821,   839,   857,   866,   878,   883,
+     891,   911,   934,   945,   953,   975,   998,  1026,  1038,  1052,
+    1052,  1054,  1056,  1067,  1079,  1078,  1091,  1092,  1096,  1107,
+    1120,  1124,  1135,  1138,  1151,  1154,  1164,  1188,  1187,  1207,
+    1229,  1247,  1268,  1286,  1316,  1346,  1364,  1382,  1408,  1426,
+    1445,  1444,  1467,  1485,  1524,  1530,  1536,  1543,  1568,  1593,
+    1610,  1627,  1659,  1658,  1682,  1700,  1717,  1734,  1733,  1759,
+    1764,  1769,  1774,  1779,  1802,  1808,  1819,  1820,  1825,  1828,
+    1832,  1855,  1878,  1901,  1929,  1950,  1973,  1994,  2016,  2036,
+    2148,  2167,  2205,  2314,  2323,  2329,  2344,  2372,  2389,  2403,
+    2409,  2415,  2424,  2438,  2480,  2497,  2512,  2531,  2543,  2567,
+    2571,  2578,  2584,  2589,  2595,  2599,  2603,  2613,  2630,  2647,
+    2668,  2689,  2724,  2732,  2738,  2745,  2749,  2758,  2766,  2774,
+    2783,  2782,  2796,  2795,  2809,  2808,  2822,  2821,  2834,  2841,
+    2848,  2855,  2862,  2869,  2876,  2883,  2890,  2898,  2897,  2910,
+    2909,  2922,  2921,  2934,  2933,  2946,  2945,  2958,  2957,  2970,
+    2969,  2982,  2981,  2994,  2993,  3009,  3012,  3018,  3027,  3047,
+    3070,  3074,  3078,  3082,  3086,  3090,  3109,  3122,  3125,  3141,
+    3144,  3157,  3160,  3166,  3169,  3176,  3232,  3302,  3307,  3374,
+    3410,  3453,  3478,  3505,  3549,  3572,  3595,  3598,  3607,  3611,
+    3621,  3658,  3689,  3720,  3751,  3787,  3788,  3789,  3790,  3791,
+    3792,  3793,  3794,  3795,  3802,  3803,  3804,  3805,  3806,  3807,
+    3808,  3809,  3810,  3811,  3812,  3813,  3814,  3815,  3816,  3817,
+    3818,  3819,  3820,  3821,  3822,  3823,  3824,  3825,  3826,  3827,
+    3828,  3829,  3830,  3831,  3832,  3833,  3835,  3836,  3837,  3838,
+    3839,  3840,  3841,  3842,  3843,  3844,  3845,  3846,  3847,  3848,
+    3849,  3850,  3851,  3852,  3853,  3854,  3855,  3864,  3865,  3866,
+    3867,  3868,  3869,  3870,  3874,  3894,  3913,  3931,  3943,  3960,
+    3981,  3986,  3991,  4001,  4011,  4019,  4023,  4027,  4031,  4035,
+    4042,  4046,  4050,  4054,  4061,  4066,  4073,  4078,  4082,  4087,
+    4091,  4099,  4110,  4114,  4126,  4134,  4142,  4149,  4160,  4180,
+    4184,  4188,  4192,  4196,  4206,  4216,  4228,  4240,  4261,  4266,
+    4270,  4274,  4286,  4290,  4302,  4309,  4319,  4323,  4338,  4343,
+    4350,  4354,  4367,  4375,  4386,  4390,  4398,  4406,  4414,  4422,
+    4436,  4450,  4454
 };
 #endif
 
@@ -992,7 +992,7 @@ static const char *const yytname[] =
   "tCoordinates", "tExp", "tLog", "tLog10", "tSqrt", "tSin", "tAsin",
   "tCos", "tAcos", "tTan", "tRand", "tAtan", "tAtan2", "tSinh", "tCosh",
   "tTanh", "tFabs", "tFloor", "tCeil", "tFmod", "tModulo", "tHypot",
-  "tPrintf", "tSprintf", "tStrCat", "tStrPrefix", "tStrRelative",
+  "tList", "tPrintf", "tSprintf", "tStrCat", "tStrPrefix", "tStrRelative",
   "tBoundingBox", "tDraw", "tToday", "tSyncModel", "tCreateTopology",
   "tCreateTopologyNoHoles", "tDistanceFunction", "tDefineConstant",
   "tPoint", "tCircle", "tEllipse", "tLine", "tSphere", "tPolarSphere",
@@ -1053,57 +1053,57 @@ static const yytype_uint16 yytoknum[] =
      355,   356,   357,   358,   359,   360,   361,   362,   363,   364,
      365,   366,   367,   368,   369,   370,   371,   372,   373,   374,
      375,   376,   377,   378,   379,   380,   381,   382,   383,   384,
-      63,   385,   386,   387,   388,    60,    62,   389,   390,    43,
-      45,    42,    47,    37,    33,   391,   392,   393,    94,    40,
-      41,    91,    93,    46,    35,    44,   123,   125,   126
+     385,    63,   386,   387,   388,   389,    60,    62,   390,   391,
+      43,    45,    42,    47,    37,    33,   392,   393,   394,    94,
+      40,    41,    91,    93,    46,    35,    44,   123,   125,   126
 };
 # endif
 
 /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
 static const yytype_uint8 yyr1[] =
 {
-       0,   159,   160,   160,   161,   161,   162,   162,   162,   162,
-     162,   162,   162,   162,   162,   162,   162,   162,   162,   162,
-     162,   162,   162,   163,   163,   164,   164,   164,   164,   165,
-     165,   165,   166,   166,   166,   166,   166,   166,   167,   167,
-     168,   168,   170,   171,   169,   172,   172,   174,   173,   175,
-     175,   177,   176,   178,   178,   180,   179,   181,   181,   181,
-     181,   181,   182,   182,   183,   183,   183,   183,   183,   183,
-     183,   183,   183,   183,   183,   183,   183,   183,   183,   183,
-     183,   183,   183,   183,   183,   183,   183,   183,   183,   183,
-     183,   184,   184,   185,   185,   185,   186,   185,   187,   187,
-     188,   188,   189,   189,   190,   190,   191,   191,   192,   193,
-     192,   192,   192,   192,   192,   192,   192,   192,   192,   192,
-     192,   192,   194,   192,   192,   192,   192,   192,   192,   192,
-     192,   192,   192,   192,   195,   192,   192,   192,   192,   196,
-     192,   197,   197,   197,   197,   197,   197,   197,   198,   198,
-     199,   199,   199,   199,   199,   199,   200,   200,   200,   200,
-     200,   200,   200,   200,   200,   201,   201,   201,   201,   201,
-     202,   203,   203,   203,   203,   204,   204,   204,   204,   204,
-     204,   204,   204,   204,   204,   204,   204,   204,   204,   205,
-     205,   205,   205,   205,   205,   205,   205,   205,   205,   206,
-     206,   206,   207,   206,   208,   206,   209,   206,   210,   206,
-     206,   206,   206,   206,   206,   206,   206,   206,   206,   211,
-     206,   212,   206,   213,   206,   214,   206,   215,   206,   216,
-     206,   217,   206,   218,   206,   219,   206,   220,   220,   221,
-     221,   221,   221,   221,   221,   221,   221,   221,   221,   222,
-     222,   223,   223,   224,   224,   225,   225,   226,   226,   226,
-     226,   226,   226,   226,   227,   227,   228,   228,   228,   228,
-     229,   229,   229,   230,   230,   230,   230,   231,   231,   231,
-     231,   231,   231,   231,   231,   231,   231,   231,   231,   231,
-     231,   231,   231,   231,   231,   231,   231,   231,   231,   231,
-     231,   231,   231,   231,   231,   231,   231,   231,   231,   231,
-     231,   231,   231,   231,   231,   231,   231,   231,   231,   231,
-     231,   231,   231,   231,   231,   231,   231,   231,   231,   231,
-     231,   231,   231,   231,   231,   231,   231,   231,   231,   232,
+       0,   160,   161,   161,   162,   162,   163,   163,   163,   163,
+     163,   163,   163,   163,   163,   163,   163,   163,   163,   163,
+     163,   163,   163,   164,   164,   165,   165,   165,   165,   166,
+     166,   166,   167,   167,   167,   167,   167,   167,   168,   168,
+     169,   169,   171,   172,   170,   173,   173,   175,   174,   176,
+     176,   178,   177,   179,   179,   181,   180,   182,   182,   182,
+     182,   182,   183,   183,   184,   184,   184,   184,   184,   184,
+     184,   184,   184,   184,   184,   184,   184,   184,   184,   184,
+     184,   184,   184,   184,   184,   184,   184,   184,   184,   185,
+     185,   186,   186,   186,   187,   186,   188,   188,   189,   189,
+     190,   190,   191,   191,   192,   192,   193,   194,   193,   193,
+     193,   193,   193,   193,   193,   193,   193,   193,   193,   193,
+     195,   193,   193,   193,   193,   193,   193,   193,   193,   193,
+     193,   193,   196,   193,   193,   193,   193,   197,   193,   198,
+     198,   198,   198,   198,   198,   198,   199,   199,   200,   200,
+     200,   200,   200,   200,   201,   201,   201,   201,   201,   201,
+     201,   201,   201,   202,   202,   202,   202,   202,   203,   204,
+     204,   204,   204,   205,   205,   205,   205,   205,   205,   205,
+     205,   205,   205,   205,   205,   205,   205,   206,   206,   206,
+     206,   206,   206,   206,   206,   206,   206,   207,   207,   207,
+     208,   207,   209,   207,   210,   207,   211,   207,   207,   207,
+     207,   207,   207,   207,   207,   207,   207,   212,   207,   213,
+     207,   214,   207,   215,   207,   216,   207,   217,   207,   218,
+     207,   219,   207,   220,   207,   221,   221,   222,   222,   222,
+     222,   222,   222,   222,   222,   222,   222,   223,   223,   224,
+     224,   225,   225,   226,   226,   227,   227,   227,   227,   227,
+     227,   227,   228,   228,   229,   229,   229,   229,   230,   230,
+     230,   231,   231,   231,   231,   232,   232,   232,   232,   232,
+     232,   232,   232,   232,   232,   232,   232,   232,   232,   232,
+     232,   232,   232,   232,   232,   232,   232,   232,   232,   232,
+     232,   232,   232,   232,   232,   232,   232,   232,   232,   232,
+     232,   232,   232,   232,   232,   232,   232,   232,   232,   232,
      232,   232,   232,   232,   232,   232,   232,   232,   232,   232,
      232,   232,   232,   232,   232,   232,   232,   233,   233,   233,
-     233,   233,   234,   234,   234,   234,   235,   235,   236,   236,
-     236,   236,   236,   236,   237,   237,   238,   238,   238,   238,
-     238,   238,   238,   238,   238,   238,   238,   238,   238,   239,
-     239,   239,   239,   240,   240,   240,   240,   241,   241,   242,
-     242,   243,   243,   243,   243,   244,   244,   244,   244,   244,
-     244,   244,   244,   244
+     233,   233,   233,   233,   233,   233,   233,   233,   233,   233,
+     233,   233,   233,   233,   233,   234,   234,   234,   234,   234,
+     235,   235,   235,   235,   236,   236,   237,   237,   237,   237,
+     237,   237,   238,   238,   239,   239,   239,   239,   239,   239,
+     239,   239,   239,   239,   239,   239,   239,   239,   240,   240,
+     240,   240,   241,   241,   241,   241,   242,   242,   243,   243,
+     244,   244,   244,   244,   245,   245,   245,   245,   245,   245,
+     245,   245,   245
 };
 
 /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
@@ -1115,42 +1115,42 @@ static const yytype_uint8 yyr2[] =
        6,     6,     0,     2,     2,     2,     2,     2,     1,     3,
        1,     3,     0,     0,    10,     1,     3,     0,    13,     1,
        3,     0,    15,     8,    14,     0,     6,     1,     1,     1,
-       1,     1,     1,     1,     5,     4,     7,     9,     6,     6,
-       6,     3,     6,     4,     6,     9,     6,     9,     5,     8,
-       8,    11,     6,     9,     5,     7,     9,     9,    11,     9,
-       9,     0,     1,     0,     3,     5,     0,     9,     0,     2,
-       3,     3,     1,     1,     0,     5,     0,     2,     7,     0,
-       9,     6,     7,     4,     7,     8,     8,     7,     7,    11,
-       8,     8,     0,     9,     8,     9,     3,     4,    10,     7,
-       7,     8,     8,    12,     0,     9,     8,     7,     8,     0,
-       9,     5,    11,     5,     9,     4,     9,     9,     1,     1,
-       0,     2,     6,     6,     6,     6,     8,    10,    14,    16,
-      12,     8,     8,     6,    14,     4,     6,     6,     3,     4,
-       5,     3,     3,     4,     4,     3,     7,     7,     3,     7,
-       3,     2,     2,     2,    15,     2,     2,     2,     2,     6,
-       8,     8,    10,     1,     2,     1,     3,     4,     1,     5,
-      11,    13,     0,     7,     0,    13,     0,    15,     0,     6,
-       8,     8,     8,    12,    12,    12,    14,    14,    14,     0,
-      12,     0,    12,     0,    12,     0,    16,     0,    16,     0,
-      16,     0,    18,     0,    18,     0,    18,     1,     2,     5,
-       7,     9,     2,     2,     3,     2,     3,     9,     6,     0,
-       3,     0,     1,     0,     2,     0,     2,     7,     6,     8,
-       5,     3,     5,     6,     6,    12,    10,    10,    10,    10,
-       2,     3,     6,    11,    11,    11,    11,     1,     3,     2,
-       2,     2,     3,     3,     3,     3,     3,     3,     3,     3,
-       3,     3,     3,     3,     3,     3,     5,     4,     4,     4,
-       4,     4,     4,     4,     4,     4,     4,     6,     4,     4,
-       4,     4,     4,     4,     6,     6,     6,     4,     4,     4,
-       4,     4,     4,     4,     4,     4,     4,     4,     6,     4,
-       4,     4,     4,     4,     4,     6,     6,     6,     4,     1,
-       1,     1,     1,     1,     1,     1,     1,     5,     4,     4,
-       2,     5,     3,     6,     4,     7,     6,     1,     2,     2,
-       3,     3,    11,     9,     7,     7,     1,     3,     1,     1,
-       2,     3,     4,     5,     1,     1,     2,     3,     3,     5,
-       4,     2,     2,     2,     2,     1,     1,     3,     6,     1,
-       1,     3,     3,     9,     7,     1,     5,     3,     6,     1,
-       3,     1,     1,     3,     6,     1,     1,     4,     6,     6,
-       4,     4,     4,     6
+       1,     1,     1,     1,     5,     4,     6,     7,     9,     3,
+       6,     4,     6,     9,     6,     9,     5,     8,     8,    11,
+       6,     9,     5,     7,     9,     9,    11,     9,     9,     0,
+       1,     0,     3,     5,     0,     9,     0,     2,     3,     3,
+       1,     1,     0,     5,     0,     2,     7,     0,     9,     6,
+       7,     4,     7,     8,     8,     7,     7,    11,     8,     8,
+       0,     9,     8,     9,     3,     4,    10,     7,     7,     8,
+       8,    12,     0,     9,     8,     7,     8,     0,     9,     5,
+      11,     5,     9,     4,     9,     9,     1,     1,     0,     2,
+       6,     6,     6,     6,     8,    10,    14,    16,    12,     8,
+       8,     6,    14,     4,     6,     6,     3,     4,     5,     3,
+       3,     4,     4,     3,     7,     7,     3,     7,     3,     2,
+       2,     2,    15,     2,     2,     2,     2,     6,     8,     8,
+      10,     1,     2,     1,     3,     4,     1,     5,    11,    13,
+       0,     7,     0,    13,     0,    15,     0,     6,     8,     8,
+       8,    12,    12,    12,    14,    14,    14,     0,    12,     0,
+      12,     0,    12,     0,    16,     0,    16,     0,    16,     0,
+      18,     0,    18,     0,    18,     1,     2,     5,     7,     9,
+       2,     2,     3,     2,     3,     9,     6,     0,     3,     0,
+       1,     0,     2,     0,     2,     7,     6,     8,     5,     3,
+       5,     6,     6,    12,    10,    10,    10,    10,     2,     3,
+       6,    11,    11,    11,    11,     1,     3,     2,     2,     2,
+       3,     3,     3,     3,     3,     3,     3,     3,     3,     3,
+       3,     3,     3,     3,     5,     4,     4,     4,     4,     4,
+       4,     4,     4,     4,     4,     6,     4,     4,     4,     4,
+       4,     4,     6,     6,     6,     4,     4,     4,     4,     4,
+       4,     4,     4,     4,     4,     4,     6,     4,     4,     4,
+       4,     4,     4,     6,     6,     6,     4,     1,     1,     1,
+       1,     1,     1,     1,     1,     5,     4,     4,     2,     5,
+       3,     6,     4,     7,     6,     1,     2,     2,     3,     3,
+      11,     9,     7,     7,     1,     3,     1,     1,     2,     3,
+       4,     5,     1,     1,     2,     3,     3,     5,     4,     2,
+       2,     2,     2,     1,     1,     3,     4,     6,     1,     1,
+       3,     3,     9,     7,     1,     5,     3,     6,     1,     3,
+       1,     1,     3,     6,     1,     1,     4,     6,     6,     4,
+       4,     4,     6
 };
 
 /* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
@@ -1163,328 +1163,328 @@ static const yytype_uint16 yydefact[] =
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,   193,
-       0,   198,     0,     0,   195,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,     0,     0,     0,   191,
+       0,   196,     0,     0,   193,     0,     0,     0,     0,     0,
        0,     0,     0,     5,     7,     6,     8,     9,    10,    21,
       11,    12,    13,    20,    19,    14,    15,    16,    17,    18,
-      22,   339,   346,   405,    57,   340,   341,   342,     0,     0,
+      22,   337,   344,   404,    57,   338,   339,   340,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,   406,     0,     0,     0,     0,   343,   344,
-     345,    61,    60,    59,    58,     0,     0,     0,    63,    62,
-       0,     0,     0,     0,   150,     0,     0,     0,   277,     0,
-       0,     0,     0,   183,     0,   185,   182,   186,   187,    93,
+       0,     0,     0,   405,     0,     0,     0,     0,   341,   342,
+     343,    61,    60,    59,    58,     0,     0,     0,    63,    62,
+       0,     0,     0,     0,   148,     0,     0,     0,   275,     0,
+       0,     0,     0,   181,     0,   183,   180,   184,   185,    91,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,   188,     0,     0,     0,
-       0,     0,     0,   109,   122,   134,   139,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,   186,     0,     0,     0,
+       0,     0,     0,   107,   120,   132,   137,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-     357,     0,     0,     0,     0,     0,   150,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,   150,     0,   270,
-       0,     0,     0,     0,   346,   375,     0,     0,     0,     0,
-       0,     0,   385,   386,   368,   374,     0,   369,     0,     0,
-       0,     0,   395,     0,     0,     0,     0,     0,   181,     0,
-       0,   194,     0,   150,     0,   150,     0,     0,     0,     0,
-       0,     0,     0,     0,   350,    32,   405,     0,     0,     0,
+     355,     0,     0,     0,     0,     0,   148,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,     0,   148,     0,   268,
+       0,     0,     0,     0,   344,   373,     0,     0,     0,     0,
+       0,     0,     0,   383,   384,   366,   372,     0,   367,     0,
+       0,     0,     0,   394,     0,     0,     0,     0,     0,   179,
+       0,     0,   192,     0,   148,     0,   148,     0,     0,     0,
+       0,     0,     0,     0,     0,   348,    32,   404,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,   346,   280,
-     279,   281,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,   149,     0,   148,     0,    71,   178,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,     0,     0,     0,   344,
+     278,   277,   279,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,   147,     0,   146,     0,    69,   176,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,   175,   126,     0,     0,     0,    91,     0,     0,
-     389,   390,     0,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,     0,   173,   124,     0,     0,     0,    89,     0,
+       0,   388,   389,     0,     0,     0,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-     253,   253,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,   359,   358,     0,     0,     0,
-       0,   150,   150,     0,     0,     0,     0,     0,     0,     0,
-     208,     0,   150,     0,     0,     0,     0,     0,   255,     0,
-       0,     0,   168,     0,     0,     0,   271,     0,     0,     0,
-       0,     0,   381,     0,   382,   383,   384,     0,   279,   376,
-     370,     0,     0,     0,   261,   180,     0,     0,     0,     0,
-       0,   150,     0,     0,     0,     0,   196,   171,     0,   172,
-       0,   402,     0,   401,     0,     0,     0,     0,     0,   352,
-       0,     0,    73,     0,     0,     0,     0,     0,     0,     0,
+       0,   251,   251,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,   357,   356,     0,     0,
+       0,     0,   148,   148,     0,     0,     0,     0,     0,     0,
+       0,   206,     0,   148,     0,     0,     0,     0,     0,   253,
+       0,     0,     0,   166,     0,     0,     0,   269,     0,     0,
+       0,     0,     0,     0,   379,     0,   380,   381,   382,     0,
+     277,   374,   368,     0,     0,     0,   259,   178,     0,     0,
+       0,     0,     0,   148,     0,     0,     0,     0,   194,   169,
+       0,   170,     0,   401,     0,   400,     0,     0,     0,     0,
+       0,   350,     0,     0,    71,     0,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,   278,     0,     0,     0,     0,     0,
-      57,     0,     0,     0,     0,     0,   145,     0,     0,     0,
-       0,   151,    65,     0,   295,   294,   293,   292,   288,   289,
-     291,   290,   283,   282,   284,   285,   286,   287,   127,     0,
-       0,     0,     0,    92,     0,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,   276,    57,     0,     0,
+       0,    57,     0,     0,     0,     0,     0,   143,     0,     0,
+       0,     0,   149,    65,     0,   293,   292,   291,   290,   286,
+     287,   289,   288,   281,   280,   282,   283,   284,   285,   125,
+       0,     0,     0,     0,    90,     0,     0,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,   251,     0,     0,
+       0,     0,     0,     0,     0,     0,     0,     0,   249,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-     113,     0,     0,     0,   361,   360,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,   202,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,   169,     0,     0,   165,     0,
-       0,     0,     0,   387,     0,     0,     0,     0,   371,   378,
-       0,   284,   377,     0,     0,     0,     0,     0,     0,     0,
-       0,   197,     0,   173,   174,     0,     0,     0,     0,     0,
-       0,     0,   348,   354,     0,    42,     0,     0,     0,    55,
-       0,    33,    34,    35,    36,    37,   297,   318,   298,   319,
-     299,   320,   300,   321,   301,   322,   302,   323,   303,   324,
-     304,   325,   305,   326,   317,   338,   306,   327,     0,     0,
-     308,   329,   309,   330,   310,   331,   311,   332,   312,   333,
-     313,   334,     0,     0,     0,     0,     0,     0,   412,     0,
-       0,   410,   411,    84,     0,   407,     0,     0,     0,     0,
-       0,    57,     0,     0,     0,     0,     0,    78,     0,     0,
-       0,     0,   349,     0,     0,     0,     0,     0,    25,    23,
-       0,     0,     0,    64,    94,     0,   391,   392,     0,     0,
+       0,   111,     0,     0,     0,   359,   358,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,   200,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,   167,     0,     0,   163,
+       0,     0,     0,     0,   385,     0,     0,     0,     0,     0,
+     369,   376,     0,   282,   375,     0,     0,     0,     0,     0,
+       0,     0,     0,   195,     0,   171,   172,     0,     0,     0,
+       0,     0,     0,     0,   346,   352,     0,    42,     0,     0,
+       0,    55,     0,    33,    34,    35,    36,    37,   295,   316,
+     296,   317,   297,   318,   298,   319,   299,   320,   300,   321,
+     301,   322,   302,   323,   303,   324,   315,   336,   304,   325,
+       0,     0,   306,   327,   307,   328,   308,   329,   309,   330,
+     310,   331,   311,   332,     0,     0,     0,     0,     0,     0,
+     411,     0,     0,   409,   410,    82,     0,   406,     0,     0,
+       0,     0,     0,     0,     0,     0,    76,     0,     0,     0,
+       0,   347,     0,     0,     0,     0,     0,    25,    23,     0,
+       0,     0,    64,    92,     0,   390,   391,     0,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,   249,   254,   252,     0,   260,
-       0,     0,   102,   103,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,   141,   143,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,   237,
-       0,   199,     0,     0,     0,     0,     0,     0,   256,   262,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,   348,
-     380,   372,     0,     0,     0,     0,     0,     0,     0,   170,
-       0,     0,     0,     0,     0,   403,     0,     0,     0,     0,
-       0,     0,   351,     0,   347,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,   247,   252,   250,     0,   258,     0,
+       0,   100,   101,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,   139,   141,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,     0,     0,   235,     0,
+     197,     0,     0,     0,     0,     0,     0,   254,   260,     0,
+       0,     0,     0,     0,     0,     0,     0,     0,   346,   386,
+     378,   370,     0,     0,     0,     0,     0,     0,     0,   168,
+       0,     0,     0,     0,     0,   402,     0,     0,     0,     0,
+       0,     0,   349,     0,   345,     0,     0,     0,     0,     0,
       29,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,    68,    70,    69,     0,     0,     0,     0,
-       0,    72,    74,    76,     0,     0,   399,     0,    82,     0,
-       0,     0,     0,   296,    24,     0,     0,     0,     0,     0,
-       0,   106,   106,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,   111,     0,     0,     0,     0,     0,     0,
-     258,     0,     0,     0,     0,     0,     0,     0,     0,   264,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-     242,     0,     0,   243,     0,   245,     0,   209,   238,     0,
-       0,     0,   163,     0,     0,     0,   263,     0,   167,   166,
-     272,     0,    30,    31,     0,   379,   373,     0,     0,     0,
-     396,     0,     0,     0,   189,     0,     0,     0,     0,     0,
-       0,     0,   177,   353,   176,     0,     0,     0,     0,   366,
-       0,   307,   328,   314,   335,   315,   336,   316,   337,   413,
-     409,   356,   408,     0,    57,     0,     0,     0,     0,    66,
-       0,     0,     0,   397,     0,     0,     0,     0,    26,    27,
-       0,     0,     0,    95,   108,     0,     0,     0,     0,     0,
-     112,     0,     0,   129,   130,     0,     0,   114,   137,     0,
-       0,     0,   104,     0,   257,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,   179,     0,     0,     0,     0,   150,
-       0,   219,     0,   221,     0,   223,     0,   368,     0,     0,
-     244,   246,     0,     0,   203,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,   388,   117,   118,     0,     0,     0,
-       0,    85,     0,     0,     0,     0,     0,     0,   355,     0,
-      38,     0,     0,     0,     0,     0,    40,     0,     0,     0,
-      79,     0,     0,    80,     0,   400,   152,   153,   154,   155,
-       0,     0,    96,     0,   107,   115,   116,   120,     0,     0,
-     131,     0,     0,   259,   124,     0,     0,   250,   136,     0,
-       0,     0,     0,   121,     0,   132,   138,     0,     0,     0,
-       0,   365,     0,   364,     0,     0,   210,     0,     0,   211,
-       0,     0,   212,     0,     0,     0,     0,     0,     0,     0,
-     162,     0,     0,   161,     0,     0,     0,   156,     0,     0,
-       0,     0,   394,     0,   191,   190,     0,     0,     0,   404,
-       0,     0,     0,     0,    43,     0,     0,     0,   367,     0,
-       0,     0,    67,    75,    77,     0,    83,     0,    28,     0,
-      98,     0,     0,     0,     0,     0,     0,   125,   110,   123,
-     135,   140,     0,     0,    89,    90,   150,     0,   144,     0,
-       0,     0,     0,     0,     0,     0,   239,     0,     0,   150,
-       0,     0,     0,     0,     0,   147,   146,     0,     0,     0,
-       0,    86,    87,     0,     0,     0,     0,     0,    39,     0,
-       0,     0,    41,    56,     0,   398,     0,     0,   266,   267,
-     268,   269,   128,     0,     0,     0,     0,     0,   363,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,   248,     0,
-       0,     0,   204,     0,     0,   157,     0,     0,     0,   393,
-     192,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-      81,     0,     0,    97,    99,     0,     0,     0,   142,     0,
-     225,     0,     0,   227,     0,     0,   229,     0,     0,     0,
-     240,     0,   200,     0,   150,     0,     0,     0,   119,    88,
-     273,   274,   275,   276,     0,    47,     0,    53,     0,     0,
-       0,   105,   133,   265,   362,   213,     0,     0,   220,   214,
-       0,     0,   222,   215,     0,     0,   224,     0,     0,     0,
-     206,     0,   160,     0,     0,     0,     0,     0,     0,     0,
-     101,   100,     0,   231,     0,   233,     0,   235,   241,   247,
-     205,   201,     0,     0,     0,     0,    44,     0,    51,     0,
-       0,     0,   216,     0,     0,   217,     0,     0,   218,     0,
-       0,   164,     0,   158,     0,    45,     0,     0,   184,     0,
-       0,     0,     0,     0,     0,   207,     0,     0,     0,     0,
-       0,   226,     0,   228,     0,   230,     0,   159,    46,    48,
-       0,    49,     0,     0,     0,     0,     0,     0,    54,   232,
-     234,   236,    50,    52
+       0,     0,     0,    66,     0,     0,     0,     0,     0,    70,
+      72,    74,     0,     0,   398,     0,    80,     0,     0,     0,
+       0,   294,    24,     0,     0,     0,     0,     0,     0,   104,
+     104,     0,     0,     0,     0,     0,     0,     0,     0,     0,
+       0,   109,     0,     0,     0,     0,     0,     0,   256,     0,
+       0,     0,     0,     0,     0,     0,     0,   262,     0,     0,
+       0,     0,     0,     0,     0,     0,     0,     0,   240,     0,
+       0,   241,     0,   243,     0,   207,   236,     0,     0,     0,
+     161,     0,     0,     0,   261,     0,   165,   164,   270,     0,
+      30,    31,     0,   377,   371,     0,     0,     0,   395,     0,
+       0,     0,   187,     0,     0,     0,     0,     0,     0,     0,
+     175,   351,   174,     0,     0,     0,     0,   364,     0,   305,
+     326,   312,   333,   313,   334,   314,   335,   412,   408,   354,
+     407,     0,    57,     0,     0,     0,     0,    67,     0,     0,
+       0,   396,     0,     0,     0,     0,    26,    27,     0,     0,
+       0,    93,   106,     0,     0,     0,     0,     0,   110,     0,
+       0,   127,   128,     0,     0,   112,   135,     0,     0,     0,
+     102,     0,   255,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,   177,     0,     0,     0,     0,   148,     0,   217,
+       0,   219,     0,   221,     0,   366,     0,     0,   242,   244,
+       0,     0,   201,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,   387,   115,   116,     0,     0,     0,     0,    83,
+       0,     0,     0,     0,     0,     0,   353,     0,    38,     0,
+       0,     0,     0,     0,    40,     0,     0,     0,    77,     0,
+       0,    78,     0,   399,   150,   151,   152,   153,     0,     0,
+      94,     0,   105,   113,   114,   118,     0,     0,   129,     0,
+       0,   257,   122,     0,     0,   248,   134,     0,     0,     0,
+       0,   119,     0,   130,   136,     0,     0,     0,     0,   363,
+       0,   362,     0,     0,   208,     0,     0,   209,     0,     0,
+     210,     0,     0,     0,     0,     0,     0,     0,   160,     0,
+       0,   159,     0,     0,     0,   154,     0,     0,     0,     0,
+     393,     0,   189,   188,     0,     0,     0,   403,     0,     0,
+       0,     0,    43,     0,     0,     0,   365,     0,     0,     0,
+      68,    73,    75,     0,    81,     0,    28,     0,    96,     0,
+       0,     0,     0,     0,     0,   123,   108,   121,   133,   138,
+       0,     0,    87,    88,   148,     0,   142,     0,     0,     0,
+       0,     0,     0,     0,   237,     0,     0,   148,     0,     0,
+       0,     0,     0,   145,   144,     0,     0,     0,     0,    84,
+      85,     0,     0,     0,     0,     0,    39,     0,     0,     0,
+      41,    56,     0,   397,     0,     0,   264,   265,   266,   267,
+     126,     0,     0,     0,     0,     0,   361,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,   246,     0,     0,     0,
+     202,     0,     0,   155,     0,     0,     0,   392,   190,     0,
+       0,     0,     0,     0,     0,     0,     0,     0,    79,     0,
+       0,    95,    97,     0,     0,     0,   140,     0,   223,     0,
+       0,   225,     0,     0,   227,     0,     0,     0,   238,     0,
+     198,     0,   148,     0,     0,     0,   117,    86,   271,   272,
+     273,   274,     0,    47,     0,    53,     0,     0,     0,   103,
+     131,   263,   360,   211,     0,     0,   218,   212,     0,     0,
+     220,   213,     0,     0,   222,     0,     0,     0,   204,     0,
+     158,     0,     0,     0,     0,     0,     0,     0,    99,    98,
+       0,   229,     0,   231,     0,   233,   239,   245,   203,   199,
+       0,     0,     0,     0,    44,     0,    51,     0,     0,     0,
+     214,     0,     0,   215,     0,     0,   216,     0,     0,   162,
+       0,   156,     0,    45,     0,     0,   182,     0,     0,     0,
+       0,     0,     0,   205,     0,     0,     0,     0,     0,   224,
+       0,   226,     0,   228,     0,   157,    46,    48,     0,    49,
+       0,     0,     0,     0,     0,     0,    54,   230,   232,   234,
+      50,    52
 };
 
 /* YYDEFGOTO[NTERM-NUM].  */
 static const yytype_int16 yydefgoto[] =
 {
-      -1,     2,     3,    73,   750,    74,    75,   471,  1099,  1105,
-     671,   855,  1257,  1414,   672,  1376,  1440,   673,  1416,   674,
-     675,   859,   145,   264,    76,   564,   357,  1210,  1267,  1314,
-     781,  1136,  1027,   541,   383,   384,   385,   386,   232,   332,
-     333,    79,    80,    81,    82,    83,    84,   233,   812,  1333,
-    1392,   613,  1157,  1160,  1163,  1356,  1360,  1364,  1403,  1406,
-    1409,   808,   809,   919,   778,   587,   622,    86,    87,    88,
-      89,    90,   234,   148,   396,   200,   988,   989,   236,   237,
-     441,   244,   741,   887,   462,   463
+      -1,     2,     3,    73,   749,    74,    75,   473,  1097,  1103,
+     673,   855,  1255,  1412,   674,  1374,  1438,   675,  1414,   676,
+     677,   859,   145,   265,    76,   565,   358,  1208,  1265,  1312,
+     780,  1134,  1025,   542,   384,   385,   386,   387,   233,   333,
+     334,    79,    80,    81,    82,    83,    84,   234,   811,  1331,
+    1390,   614,  1155,  1158,  1161,  1354,  1358,  1362,  1401,  1404,
+    1407,   807,   808,   917,   777,   588,   623,    86,    87,    88,
+      89,    90,   235,   148,   397,   200,   986,   987,   237,   238,
+     443,   245,   740,   885,   464,   465
 };
 
 /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
    STATE-NUM.  */
-#define YYPACT_NINF -1033
+#define YYPACT_NINF -1040
 static const yytype_int16 yypact[] =
 {
-    3762,    18,    42,  3876, -1033, -1033,  1891,    -4,   -24,   -88,
-      33,    80,    91,   100,   104,    -9,  -104,   -21,    52,    23,
-      65,    77,    12,    93,   112,    94,   119,   253,   305,   269,
-     297,    51,   319,    95,   167,   185,   214,   317,   228,   217,
-     217,   260,   486,     6,   339,   375,   382,     7,    34,   389,
-     466,   472,  1949,   479,   313,   366,   367,    13,     4, -1033,
-     377, -1033,   482,   348, -1033,   526,   537,    28,    31,   407,
-     410,   414,   420, -1033, -1033, -1033, -1033, -1033, -1033, -1033,
-   -1033, -1033, -1033, -1033, -1033, -1033, -1033, -1033, -1033, -1033,
-   -1033, -1033,    24,   416,   528, -1033, -1033, -1033,   -11,   209,
-     264,   279,   283,   307,   308,   314,   347,   373,   424,   457,
-     458,   469,   478,   488,   514,   523,   527,   571,   609,   427,
-     431,   434,   446, -1033,   538,   451,   463,   491, -1033, -1033,
-   -1033, -1033, -1033, -1033, -1033,  3640,  3640,  3640, -1033, -1033,
-    3640,  3060,     9,   627,   758,  3640,   607,   774, -1033,   653,
-     662,  3640,   647, -1033,  3640, -1033, -1033, -1033, -1033, -1033,
-    3640,  3461,  3640,  3640,   502,  3640,  3461,  3640,  3640,   520,
-    3461,  3640,  3640,  2393,   531,   532, -1033,   542,   554,  1949,
-    1949,  1949,   563, -1033, -1033, -1033, -1033,   575,   579,   583,
-    2393,  3640,   721,  2393,   217,   217,   217,  3640,  3640,   -41,
-   -1033,   -36,   217,   586,   601,   608,  3281,    59,   -65,   614,
-     618,   633,  1949,  2393,   641,    43,   649, -1033,   777, -1033,
-     654,   659,   667,   668,   859, -1033,    32,   834,   843,   857,
-    2541,  1735, -1033, -1033,  1918, -1033,   816, -1033,   862,  3640,
-    3640,  3640,   670,  3640,   716,   772,  3640,  3640, -1033,  3640,
-     867, -1033,   872, -1033,   877, -1033,   350,   350,   350,   350,
-     731,  3640,   895,   778, -1033, -1033, -1033,   918,  3640,  3640,
-    3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,
-    3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,
-    3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,
-    3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,
-     350,   350,   350,   350,  3640,   350,   350,   350,   166,   789,
-     789,   789,  6031,    76,  3461,  5272,   201,   788,   937,   808,
-     791, -1033,   803,  3325,  1269, -1033, -1033,  3640,  3640,  3640,
-    3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,  3640,
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+    3575,   409,  1234,  1245,  5885, -1040,  1098,  1100,  1102,  1109,
+    1244,  1250, -1040,  1254, -1040,  1106,  3548,  3548,  2289,  1110,
+   -1040,  6970,  5908,  6991,  5931,  7012,  5954,  7033,  5977,    68,
+    1113,  7054,  1120, -1040,    74,   221,  1108,  1261,  1620, -1040,
+   -1040, -1040,    23,  3548, -1040,   764, -1040,   772,   773,   782,
+     794,  7180, -1040,  1264,    15,  3548,  3332,     1,  1116,  1214,
+    1214,  2289,  1269,  1124,  1126,  1276,  1279,  2289,  1129,  1282,
+    1283, -1040,  1285,  2289,  2289,  2289,  1288,  1287, -1040,  2289,
+    1289,  1290,  1307,  1308,  2289,  2289,  2289, -1040,  1311,   324,
+    3548,  3548,  3548,  1137,   -37,   -18,    92,  1143, -1040,  2289,
+    3548, -1040,  1315, -1040,  1316, -1040, -1040,  3183,   -12,  1991,
+   -1040,  1167,  1169,  2736, -1040,  3364, -1040, -1040, -1040,  1171,
+   -1040, -1040,  1172,  7180, -1040,  1324,  1325,  1231, -1040,  3548,
+    3548,  3548, -1040,  1326,  1327,  1183,  2289,  2289,  2289,  2289,
+   -1040,   169, -1040,  3548,  5079,  5105,   795, -1040,  3548, -1040,
+   -1040, -1040, -1040, -1040, -1040, -1040, -1040, -1040, -1040, -1040,
+   -1040,  2289,   477,  3548,  1329,  1332,    25, -1040,  1333,  6000,
+      23, -1040,  1334,  1336,  1337,  1338, -1040, -1040,   354,  5131,
+    3548,  7180, -1040,  3548,   105,  1340,  1341,  1342, -1040,  3548,
+    3548, -1040, -1040,  1343,  3548, -1040, -1040,  1345,  1346,  1347,
+    1248,  3548, -1040,  1349,  2289,  2289,  2289,  2289,  1350,   956,
+    1354,  3548, -1040,  3507,  3999,  7075,  3541,   239,   105,  1355,
+     105,  1356,   105,  1359,  3548,   618,  1210,  7096, -1040, -1040,
+    4027,   319, -1040,  1361,  1449,  1365,  2289,   105,  1449,  1366,
+     810,  3548, -1040, -1040, -1040,  2289,  3859,   697,  7117, -1040,
+    3034,  1369,  1218,  1220,  1222,  1223, -1040,   155,  7180,  3548,
+    3548,  2289,  1228,   823,  7180,  1371,  1375,  1699, -1040,  1368,
+    1376, -1040,  1235, -1040, -1040, -1040, -1040, -1040,  1378,  3548,
+    7180,  4055,   249, -1040, -1040, -1040,  4083,  4111, -1040,  4139,
+    1382, -1040, -1040,  1335,  1384,  7180, -1040,  1385,  1386,  1388,
+    1389, -1040,  1239, -1040, -1040,  4558,  2878,  1392,  1242, -1040,
+    3548, -1040,  1243,   321, -1040,  1246,   338, -1040,  1247,   372,
+   -1040,  1249,  6023,  1394,  2289,  1395,  1251,  3548, -1040,  2885,
+     436, -1040,   828,   438,   492, -1040,  1399,  4167,  1306,  3548,
+   -1040,  3548, -1040, -1040,  3364,  3027,  1403, -1040,  2289,  2289,
+    2289,  2289, -1040,  3548,  5157,  5183, -1040,  2289,  3548,  1405,
+   -1040, -1040, -1040,    23, -1040,  1309, -1040,  5209, -1040,  1406,
+    1409,  1410,  1411,  1412,  1262, -1040, -1040, -1040, -1040, -1040,
+    2289,  3364, -1040, -1040,   239,  3887, -1040,  3183,   704,  3183,
+     704,  3183,   704,  1418, -1040,   829,  2289, -1040,  4195,   105,
+    1433,  3364,   105, -1040, -1040,  3548,  4223,  4251,   840, -1040,
+   -1040,  1284,  1286,  1291,  1292,  1297,  7180,  3548,  3548,   843,
+    7180, -1040,  1434, -1040,  3548,   844, -1040, -1040, -1040, -1040,
+   -1040,  3548,   848,   851,  1293,  3548, -1040,  4279,   512,   351,
+    4307,   534,   365,  4335,   544,   379, -1040,  2289,  1435,  1377,
+    2774,  1298,   548, -1040,   855,   566,  3109, -1040, -1040,  1440,
+    1442,  1450,  1451,  1455,  3548,  7138,  5235,    32, -1040,  5261,
+    1458, -1040, -1040,  4363,  1480,  1481, -1040,  4391,  1486,  3548,
+    1487,  1488,  3548,  1489,  1490,  3548,  1491,  1344, -1040,  3548,
+   -1040,   704, -1040,  3364,  1493,  2885, -1040, -1040, -1040, -1040,
+   -1040, -1040,   860, -1040,  3548, -1040,  2289,  3548,  2140, -1040,
+   -1040, -1040, -1040, -1040,  1351,  4419, -1040, -1040,  1352,  4447,
+   -1040, -1040,  1353,  4475, -1040,  1494,  3176,   414,  3536,   864,
+   -1040,   587,   876,  1497,  1357,  7159,   888,  4503, -1040, -1040,
+     704,  1501,   704,  1505,   704,  1506, -1040, -1040, -1040, -1040,
+     704,  1507,  3364,  1509, -1040,   354, -1040,  1360,  1510,   613,
+   -1040,  1362,   644, -1040,  1364,   730, -1040,  1370,   857, -1040,
+     892, -1040,   893, -1040,  1374,  2289, -1040,  1512,   704,  1522,
+     704,  1526,   704, -1040,  1528,   354,  1529,   354,   896, -1040,
+     869, -1040,   904, -1040,   951, -1040, -1040, -1040,   897, -1040,
+    1530,  1531,  1532,  1533,   354,  1534, -1040, -1040, -1040, -1040,
+   -1040, -1040
 };
 
 /* YYPGOTO[NTERM-NUM].  */
 static const yytype_int16 yypgoto[] =
 {
-   -1033, -1033, -1033, -1033,   702, -1033, -1033, -1033, -1033,   293,
-   -1033, -1033, -1033, -1033, -1033, -1033, -1033, -1033, -1033, -1033,
-   -1033, -1033,  -319,    20, -1033, -1033, -1033, -1033, -1033, -1033,
-    -342, -1033,   698,  1598, -1033, -1033, -1033, -1033,     3,  -399,
-    -205, -1033, -1033, -1033, -1033, -1033, -1033,  1599, -1033, -1033,
-   -1033, -1033, -1033, -1033, -1033, -1033, -1033, -1033, -1033, -1033,
-   -1033,  -703,  -737, -1033, -1033,  1222, -1033, -1033, -1033, -1033,
-   -1033, -1033,    -6, -1033,   399, -1033, -1032,   443,  -124,   505,
-      50,  -708,   596, -1033,  -236,    -2
+   -1040, -1040, -1040, -1040,   648, -1040, -1040, -1040, -1040,   237,
+   -1040, -1040, -1040, -1040, -1040, -1040, -1040, -1040, -1040, -1040,
+   -1040, -1040,  -309,    -1, -1040, -1040, -1040, -1040, -1040, -1040,
+    -207, -1040,   643,  1541, -1040, -1040, -1040, -1040,     3,  -399,
+    -204, -1040, -1040, -1040, -1040, -1040, -1040,  1543, -1040, -1040,
+   -1040, -1040, -1040, -1040, -1040, -1040, -1040, -1040, -1040, -1040,
+   -1040,  -740,  -620, -1040, -1040,  1170, -1040, -1040, -1040, -1040,
+   -1040, -1040,    -6, -1040,    45, -1040, -1039,   444,   -80,   336,
+     -72,  -705,   542, -1040,  -248,     8
 };
 
 /* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
@@ -1494,387 +1494,383 @@ static const yytype_int16 yypgoto[] =
 #define YYTABLE_NINF -5
 static const yytype_int16 yytable[] =
 {
-     147,   410,   606,   607,   149,   665,    78,   531,   245,   150,
-     208,   215,   425,   326,   748,   877,   169,   242,   138,   139,
-    1019,   464,   465,   466,     4,   851,   146,   164,   260,   164,
-     151,   739,   886,   252,   169,   943,   254,   432,   218,   153,
-     219,   945,     5,  1347,   802,   160,  1174,   421,   458,   422,
-     460,   842,   161,   803,   209,   379,   380,   381,   210,   804,
-     805,   152,  1024,   806,   807,   348,   349,   350,   211,   399,
-     400,   948,   351,   559,   515,   516,   517,   518,   560,   520,
-     521,   522,   220,   525,   413,  1060,   155,  1061,   418,   461,
-     266,   414,   267,   666,   667,   668,   669,   156,   399,   400,
-     399,   400,   179,   399,   400,   180,   157,   181,   731,   950,
-     158,   327,   328,   878,   879,   401,  1062,   216,  1063,   944,
-     402,   119,   120,   121,   122,   946,   160,   123,   162,   319,
-     320,   321,   947,   743,   322,   325,   718,   731,   268,   334,
-     269,   719,   159,   183,   749,   354,   184,   331,   356,   185,
-     749,   186,   173,   246,   358,   360,   363,   364,   670,   366,
-     360,   368,   369,   217,   360,   372,   373,  1261,   170,   243,
-     138,   139,   165,   174,   165,   261,  1010,   262,   905,   166,
-     906,   744,   263,   740,   253,   391,   745,   255,   433,   154,
-    1274,   397,   398,  1348,   423,   399,   400,   843,   399,   400,
-     398,   163,   126,   127,   526,   527,   562,   615,   530,   563,
-     733,   362,   172,   948,   167,   412,   367,   896,   187,   746,
-     371,   188,   567,   189,   438,   360,   168,   131,   132,   133,
-     134,   138,   139,   446,   447,   448,   190,   450,   851,   191,
-     453,   454,   171,   455,   399,   400,   648,   138,   139,   784,
-     785,   786,   138,   139,   732,   468,   131,   132,   133,   134,
-     601,   172,   473,   474,   475,   476,   477,   478,   479,   480,
-     481,   482,   483,   484,   485,   486,   487,   488,   489,   490,
-     491,   492,   493,   494,   495,   496,   497,   498,   499,   500,
-     501,   502,   503,   504,   505,   506,   507,   508,   509,   510,
-     511,   512,   513,   514,  1115,   999,   802,   175,   519,  1194,
-     567,   176,   138,   139,  1195,   803,  1378,   523,   360,   262,
-     442,   804,   805,   177,   263,   806,   807,   131,   132,   133,
-     134,   543,   544,   545,   546,   547,   548,   549,   550,   551,
-     552,   553,   554,   555,   556,   557,   532,   138,   139,   399,
-     400,   178,  1004,   438,   461,   266,   195,   196,   270,   571,
-     271,   399,   400,   192,   576,  1064,   197,  1065,   193,   581,
-     582,   583,   584,   198,   528,   182,   589,   608,   973,   399,
-     400,   594,   595,   596,   194,  1430,   119,   120,   121,   122,
-     399,   400,   123,   212,  1074,   614,   399,   400,   609,   610,
-     611,   319,   320,   612,   331,   331,   932,   616,   617,   618,
-     619,   620,   949,   272,   624,   273,   202,   626,   627,   399,
-     400,   360,   360,   631,   632,   635,   853,   636,   274,   213,
-     275,   360,   276,   214,   277,  1169,   639,   641,   199,   201,
-     221,   207,   337,   338,   339,   340,   341,   342,   343,   344,
-     345,   346,   347,   443,   349,   350,   278,   280,   279,   281,
-     351,   661,   239,   282,   664,   283,   802,   126,   127,  1165,
-     222,   131,   132,   133,   134,   803,   223,   629,   630,  1054,
-    1055,   804,   805,   238,   870,   806,   807,   637,   248,   663,
-     872,   138,   139,   399,   400,   235,   284,  1264,   285,   249,
-     337,   338,   339,   340,   341,   342,   343,   344,   345,   346,
-     347,   348,   349,   350,   895,   240,   241,   635,   351,   567,
-     974,   568,   286,   802,   287,   736,   247,  1281,   735,  1284,
-     250,  1287,   803,   266,   203,   399,   400,   204,   804,   805,
-     205,   251,   806,   807,   948,   314,   567,   948,   573,   734,
-     948,  1229,   399,   400,   360,   752,   256,  1003,  1005,   257,
-     641,   756,   802,   258,   119,   120,   121,   122,  1231,   259,
-     123,   803,   265,   288,   770,   289,   310,   804,   805,   775,
-     311,   806,   807,   312,   782,   782,   782,   782,   783,   783,
-     783,   783,   360,   394,   395,   313,   794,   795,   399,   400,
-     315,   403,   798,   399,   400,   411,   290,   292,   291,   293,
-     751,  1322,   316,   335,  1233,   818,   374,   820,   294,  1241,
-     295,  1183,   235,   235,   235,   195,   196,   296,   360,   297,
-    1369,   329,   948,   390,   360,   197,   393,   298,   802,   299,
-     317,   838,   206,   840,   841,   126,   127,   803,   791,   844,
-    1325,   365,   355,   804,   805,   235,   419,   806,   807,   352,
-    1154,   399,   400,   300,   948,   301,   361,   948,   353,   370,
-     948,   361,   302,   948,   303,   361,   304,  1243,   305,  1401,
-     375,  1404,   852,  1407,   828,   802,   399,   400,   376,  1410,
-     833,   377,   861,   862,   803,   948,   567,   948,   577,   948,
-     804,   805,  1244,   378,   806,   807,   863,   864,   865,   866,
-     867,   868,   382,   360,   802,   399,   400,  1432,   871,  1434,
-     306,  1436,   307,   803,   387,   392,  1328,   880,   388,   804,
-     805,  1321,   389,   806,   807,   439,   361,   360,   360,   360,
-     360,   893,   404,   337,   338,   339,   340,   341,   342,   343,
-     344,   345,   346,   347,   348,   349,   350,   405,   308,   802,
-     309,   351,   330,   415,   406,   399,   400,   416,   803,   869,
-    1184,   399,   400,  1390,   804,   805,   399,   400,   806,   807,
-     336,  1324,   417,   426,  1120,   399,   400,  1327,   802,   567,
-     420,   638,  1335,   889,   890,   891,   892,   803,   604,   605,
-     424,  1337,  1419,   804,   805,   802,   395,   806,   807,   655,
-     427,   656,   399,   400,   803,   428,     7,     8,   429,   430,
-     804,   805,   444,   449,   806,   807,   965,  1276,  1394,   361,
-      38,    39,    40,    41,   567,   567,   730,   824,    46,   434,
-     567,    49,   825,   567,   567,   831,   930,  1421,   435,   852,
-     986,   987,   537,    17,    18,   538,    20,    21,   539,    23,
-     540,    25,   436,    26,   439,   802,    29,    30,   445,    32,
-      33,    34,   451,   456,   803,    37,  1423,   452,   457,  1011,
-     804,   805,   467,   459,   806,   807,   346,   347,   348,   349,
-     350,  1021,  1023,  1425,   567,   351,   964,  1006,   567,   469,
-     966,    54,    55,    56,   337,   338,   339,   340,   341,   342,
-     343,   344,   345,   346,   347,   348,   349,   350,  1012,   567,
-    1013,  1014,   351,   567,   472,  1015,  1056,  1057,  1058,  1144,
-     802,  1145,   361,   361,   470,  1067,  1069,   351,   567,   803,
-    1016,   533,   361,  1072,   534,   804,   805,   144,   642,   806,
-     807,   360,   567,  1443,  1017,  1103,   567,  1104,  1178,   535,
-     536,   628,   802,   580,   585,  1088,  1089,  1090,   727,   728,
-     729,   803,  1200,  1103,  1201,  1242,   586,   804,   805,  1100,
-     590,   806,   807,   597,  1106,   339,   340,   341,   342,   343,
-     344,   345,   346,   347,   348,   349,   350,   591,   592,  1109,
-     793,   351,  1108,  1098,   593,   138,   139,  1082,   599,  1289,
-     431,  1290,   262,   810,   600,   144,  1122,   263,  1444,  1123,
-     567,  1103,  1301,  1309,   621,  1128,  1129,   623,   625,   776,
-    1131,  1312,   646,  1313,  1292,   649,  1103,  1137,  1316,   567,
-     790,  1317,   567,  1200,  1336,  1375,   567,  1147,  1393,  1148,
-    1445,   720,   567,  1149,  1395,  1103,   567,  1399,  1426,  1427,
-    1164,  1428,   331,   657,  1103,   361,  1442,  1446,   737,  1447,
-     360,   642,   757,   658,   360,   724,   659,  1179,   660,   721,
-     738,     7,     8,   722,   725,   753,  1187,   726,   742,   754,
-    1188,   755,   758,   759,   760,  1196,  1197,   762,   763,   764,
-     765,   767,   768,   361,   769,   777,   779,   792,   796,   797,
-     819,   837,   834,   835,   836,  1209,   845,   537,    17,    18,
-     538,    20,    21,   539,    23,   540,    25,   846,    26,  1370,
-     847,    29,    30,   848,    32,    33,    34,   849,   856,   361,
-      37,   857,   858,   860,   873,   361,  1227,   874,   875,   876,
-     881,   882,   885,   884,   899,   888,   900,   894,   898,   903,
-     909,  1415,   914,  1240,   910,   438,    54,    55,    56,   915,
-     916,   917,   920,   922,   921,  1248,   923,  1249,   924,   925,
-     360,   926,   927,   928,   929,   931,   939,   941,   942,  1258,
-     940,  1438,   951,  1441,  1262,   952,   957,   953,   936,   937,
-     938,   954,   901,   902,   955,   904,   958,   907,   908,   959,
-    1452,   911,   912,   960,   961,   962,   963,   360,   970,   975,
-     976,   978,   979,  1279,   361,  1282,   653,  1285,   980,   331,
-     981,   982,   983,   984,   990,  1007,  1250,   360,   985,  1008,
-    1018,  1298,  1026,  1030,  1000,  1033,  1002,  1025,   361,   361,
-     361,   361,  1034,  1307,  1308,  1031,  1037,  1038,  1039,  1032,
-    1311,  1044,  1043,  1046,  1066,  1036,  1047,  1315,  1048,     7,
-       8,  1319,  1049,  1275,  1053,   542,  1070,   967,   968,   969,
-     340,   341,   342,   343,   344,   345,   346,   347,   348,   349,
-     350,  1059,  1071,  1296,  1085,   351,  1078,  1086,  1091,  1079,
-    1106,  1092,  1084,   558,  1083,   537,    17,    18,   538,    20,
-      21,   539,    23,   540,    25,  1357,    26,  1110,  1361,    29,
-      30,  1365,    32,    33,    34,  1368,  1093,  1087,    37,   360,
-    1111,   360,  1166,  1113,  1116,  1117,  1118,  1119,  1125,  1126,
-    1377,  1127,  1130,  1379,  1132,  1135,  1029,  1133,  1073,  1134,
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+     137,     0,     0,  1249,     0,   410,     0,    91,   319,   267,
+     143,     0,   198,    95,    96,    97,     0,     0,    98,    99,
+     100,   101,   102,   103,   104,   105,   106,   107,   108,   109,
+     110,   111,   112,   113,   114,   115,   116,   117,   118,     0,
+       0,   119,   120,   121,   122,     0,     0,   123,   125,     0,
+       0,   128,   129,   130,     0,     0,   338,   339,   340,   341,
+     342,   343,   344,   345,   346,   347,   348,   349,   350,   351,
+       0,   135,   136,     0,   352,     0,   137,     0,     0,     0,
+       0,   140,     0,     0,   324,  1336,   143,     0,   325,    91,
+     319,     0,     0,     0,     0,    95,    96,    97,     0,     0,
+      98,    99,   100,   101,   102,   103,   104,   105,   106,   107,
+     108,   109,   110,   111,   112,   113,   114,   115,   116,   117,
+     118,   125,   126,   127,   128,   129,   130,   746,   338,   339,
+     340,   341,   342,   343,   344,   345,   346,   347,   348,   349,
+     350,   351,     0,     0,   135,   136,   352,     0,     0,   137,
+       0,     0,  1387,     0,   140,     0,    91,   319,     0,   143,
+       0,  1184,    95,    96,    97,     0,     0,    98,    99,   100,
+     101,   102,   103,   104,   105,   106,   107,   108,   109,   110,
+     111,   112,   113,   114,   115,   116,   117,   118,     0,     0,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-     125,     0,     0,   128,   129,   130,     0,     7,     8,   337,
+       0,     0,     0,   125,     0,     0,   128,   129,   130,     0,
      338,   339,   340,   341,   342,   343,   344,   345,   346,   347,
-     348,   349,   350,   135,   136,     0,     0,   351,   137,     0,
-       0,     0,     0,   140,     0,     0,   633,     0,   143,     0,
-     634,     0,     0,   537,    17,    18,   538,    20,    21,   539,
-      23,   540,    25,     0,    26,     0,     0,    29,    30,     0,
-      32,    33,    34,     0,     0,     0,    37,   125,     0,     0,
-     128,   129,   130,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-     407,   408,    54,    55,    56,   137,     0,     0,     0,     0,
-     409,     0,    91,   318,     0,   143,     0,   198,    95,    96,
-      97,     0,     0,    98,    99,   100,   101,   102,   103,   104,
-     105,   106,   107,   108,   109,   110,   111,   112,   113,   114,
-     115,   116,   117,   118,    91,   224,     0,     0,     0,     0,
-      95,    96,    97,     0,     0,    98,    99,   100,   101,   102,
-     103,   104,   105,   106,   107,   108,   109,   110,   111,   112,
-     113,   114,   115,   116,   117,   118,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,   226,
-       0,     0,   227,     0,     0,   228,     0,   229,     0,     0,
+     348,   349,   350,   351,     0,     0,   135,   136,   352,     0,
+       0,   137,     0,     0,     0,     0,   140,     0,     0,   634,
+       0,   143,     0,   635,     0,     0,     0,     0,     0,     0,
+     338,   339,   340,   341,   342,   343,   344,   345,   346,   347,
+     348,   349,   350,   351,     0,     0,     0,     0,   352,     0,
+     125,     0,     0,   128,   129,   130,     0,   338,   339,   340,
+     341,   342,   343,   344,   345,   346,   347,   348,   349,   350,
+     351,     0,     0,   408,   409,   352,     0,     0,   137,     0,
+       0,     0,     0,   410,   832,    91,   319,     0,   143,     0,
+     198,    95,    96,    97,     0,     0,    98,    99,   100,   101,
+     102,   103,   104,   105,   106,   107,   108,   109,   110,   111,
+     112,   113,   114,   115,   116,   117,   118,    91,   224,     0,
+       0,     0,     0,    95,    96,    97,     0,     0,    98,    99,
+     100,   101,   102,   103,   104,   105,   106,   107,   108,   109,
+     110,   111,   112,   113,   114,   115,   116,   117,   118,   226,
        0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,    38,    39,    40,    41,    42,     0,     0,
-       0,    46,     0,     0,    49,   125,     0,     0,   128,   129,
-     130,     0,   337,   338,   339,   340,   341,   342,   343,   344,
-     345,   346,   347,   348,   349,   350,     0,     0,   135,   136,
-     351,     0,     0,   137,     0,     0,     0,   125,   140,   772,
-     128,   129,   130,   143,     0,  1022,   337,   338,   339,   340,
+       0,     0,     0,   227,     0,     0,   228,     0,     0,   229,
+       0,   230,     0,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,     0,    38,    39,    40,
+      41,    42,     0,     0,     0,    46,     0,     0,    49,   125,
+       0,     0,   128,   129,   130,     0,     0,   338,   339,   340,
      341,   342,   343,   344,   345,   346,   347,   348,   349,   350,
-     135,   359,     0,     0,   351,   137,    91,   318,   266,     0,
-     140,   561,    95,    96,    97,   143,     0,    98,    99,   100,
-     101,   102,   103,   104,   105,   106,   107,   108,   109,   110,
-     111,   112,   113,   114,   115,   116,   117,   118,     0,   119,
-     120,   121,   122,    91,   318,   123,     0,     0,     0,    95,
-      96,    97,     0,     0,    98,    99,   100,   101,   102,   103,
-     104,   105,   106,   107,   108,   109,   110,   111,   112,   113,
-     114,   115,   116,   117,   118,   337,   338,   339,   340,   341,
-     342,   343,   344,   345,   346,   347,   348,   349,   350,     0,
-       0,     0,     0,   351,     0,     0,     0,     0,     0,     0,
-    1152,     0,  1153,     0,     0,     0,     0,     0,     0,     0,
-       0,     0,     0,     0,     0,     0,     0,     0,     0,   125,
-     126,   127,   128,   129,   130,     0,   337,   338,   339,   340,
+     351,     0,   135,   136,     0,   352,     0,   137,     0,     0,
+       0,   125,   140,     0,   128,   129,   130,   143,     0,  1020,
+     338,   339,   340,   341,   342,   343,   344,   345,   346,   347,
+     348,   349,   350,   351,   135,   360,     0,     0,   352,   137,
+      91,   319,   267,     0,   140,   562,    95,    96,    97,   143,
+       0,    98,    99,   100,   101,   102,   103,   104,   105,   106,
+     107,   108,   109,   110,   111,   112,   113,   114,   115,   116,
+     117,   118,     0,     0,   119,   120,   121,   122,     7,     8,
+     123,    91,   319,     0,     0,     0,     0,    95,    96,    97,
+       0,     0,    98,    99,   100,   101,   102,   103,   104,   105,
+     106,   107,   108,   109,   110,   111,   112,   113,   114,   115,
+     116,   117,   118,   970,     0,   538,    17,    18,   539,    20,
+      21,   540,    23,   541,    25,     0,    26,     0,     0,    29,
+      30,     0,    32,    33,    34,     0,     0,     0,    37,     0,
+       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,
+       0,     0,     0,     0,   125,   126,   127,   128,   129,   130,
+       0,     0,     0,     0,    54,    55,    56,     0,     0,     0,
+       0,     0,     0,     0,     0,     0,     0,   135,   136,     0,
+       0,     0,   137,     0,     0,     0,     0,   140,     0,     0,
+       0,     0,   143,     0,     0,   125,     0,     0,   128,   129,
+     130,     0,   338,   339,   340,   341,   342,   343,   344,   345,
+     346,   347,   348,   349,   350,   351,     0,     0,   135,   136,
+     352,     0,     0,   137,  1389,     0,     0,  1150,   140,  1151,
+       0,     0,     0,   143,     0,     0,   338,   339,   340,   341,
+     342,   343,   344,   345,   346,   347,   348,   349,   350,   351,
+       0,    -4,     1,     0,   352,    -4,     0,     0,     0,     0,
+       0,     0,     0,    -4,    -4,     0,     0,   338,   339,   340,
      341,   342,   343,   344,   345,   346,   347,   348,   349,   350,
-       0,     0,   135,   136,   351,     0,     0,   137,     0,     0,
-       0,  1181,   140,  1182,     0,     0,   125,   143,     0,   128,
-     129,   130,    -4,     1,     0,     0,    -4,     0,     0,     0,
-       0,     0,     0,     0,    -4,    -4,     0,     0,     0,   135,
-     136,     0,     0,     0,   137,     0,     0,     0,     0,   140,
-       0,     0,     0,     0,   143,     0,     0,    -4,     0,     0,
-       0,     0,    -4,    -4,     0,    -4,    -4,    -4,     0,    -4,
+     351,     0,     0,     0,     0,   352,     0,    -4,     0,     0,
+       0,     0,    -4,    -4,   771,    -4,    -4,    -4,     0,    -4,
       -4,    -4,    -4,    -4,    -4,    -4,    -4,    -4,    -4,    -4,
        0,    -4,    -4,    -4,    -4,    -4,    -4,    -4,    -4,    -4,
       -4,     0,    -4,    -4,    -4,    -4,    -4,    -4,    -4,    -4,
@@ -1883,1237 +1879,1243 @@ static const yytype_int16 yytable[] =
       -4,    -4,     0,     0,    -4,     0,    -4,     0,    -4,    -4,
       -4,    -4,    -4,    -4,    -4,    -4,    -4,    -4,     0,     0,
        6,     0,     0,     0,    -4,    -4,    -4,    -4,     7,     8,
-       0,   337,   338,   339,   340,   341,   342,   343,   344,   345,
-     346,   347,   348,   349,   350,     0,     0,     0,     0,   351,
-       0,     9,     0,     0,     0,     0,    10,    11,   814,    12,
-      13,    14,     0,    15,    16,    17,    18,    19,    20,    21,
-      22,    23,    24,    25,     0,    26,    27,    28,    29,    30,
-      31,    32,    33,    34,    35,     0,    36,    37,    38,    39,
-      40,    41,    42,    43,    44,    45,    46,    47,    48,    49,
-       0,     0,    50,    51,     0,     0,     0,    52,     0,     0,
-       0,     0,    53,    54,    55,    56,     0,     0,    57,     0,
-      58,     0,    59,    60,    61,    62,    63,    64,    65,    66,
-      67,    68,     0,     0,     0,     0,     0,     0,    69,    70,
-      71,    72,   337,   338,   339,   340,   341,   342,   343,   344,
-     345,   346,   347,   348,   349,   350,     0,     0,     0,     0,
-     351,     0,     0,     0,     0,     0,     0,  1277,     0,  1278,
-     337,   338,   339,   340,   341,   342,   343,   344,   345,   346,
-     347,   348,   349,   350,     0,     0,     0,     0,   351,     0,
-       0,     0,     0,     0,     0,     0,     0,   830,   337,   338,
-     339,   340,   341,   342,   343,   344,   345,   346,   347,   348,
-     349,   350,     0,     0,     0,     0,   351,     0,     0,     0,
-       0,     0,     0,     0,     0,   854,   337,   338,   339,   340,
-     341,   342,   343,   344,   345,   346,   347,   348,   349,   350,
-       0,     0,     0,     0,   351,     0,     0,     0,     0,     0,
-       0,     0,     0,   935,   337,   338,   339,   340,   341,   342,
-     343,   344,   345,   346,   347,   348,   349,   350,     0,     0,
-       0,     0,   351,     0,     0,     0,     0,     0,     0,     0,
-       0,  1150,   337,   338,   339,   340,   341,   342,   343,   344,
-     345,   346,   347,   348,   349,   350,     0,     0,     0,     0,
-     351,     0,     0,     0,     0,     0,     0,     0,     0,  1168,
-     337,   338,   339,   340,   341,   342,   343,   344,   345,   346,
-     347,   348,   349,   350,     0,     0,     0,     0,   351,     0,
-       0,     0,     0,     0,     0,     0,     0,  1211,   337,   338,
-     339,   340,   341,   342,   343,   344,   345,   346,   347,   348,
-     349,   350,     0,     0,     0,     0,   351,     0,     0,     0,
-       0,     0,     0,     0,     0,  1212,   337,   338,   339,   340,
-     341,   342,   343,   344,   345,   346,   347,   348,   349,   350,
-       0,     0,     0,     0,   351,     0,     0,     0,     0,     0,
-       0,     0,     0,  1213,   337,   338,   339,   340,   341,   342,
-     343,   344,   345,   346,   347,   348,   349,   350,     0,     0,
-       0,     0,   351,     0,     0,     0,     0,     0,     0,     0,
-       0,  1214,   337,   338,   339,   340,   341,   342,   343,   344,
-     345,   346,   347,   348,   349,   350,     0,     0,     0,     0,
-     351,     0,     0,     0,     0,     0,     0,     0,     0,  1246,
-     337,   338,   339,   340,   341,   342,   343,   344,   345,   346,
-     347,   348,   349,   350,     0,     0,     0,     0,   351,     0,
-       0,     0,     0,     0,     0,     0,     0,  1293,   337,   338,
-     339,   340,   341,   342,   343,   344,   345,   346,   347,   348,
-     349,   350,     0,     0,     0,     0,   351,     0,     0,     0,
-       0,     0,     0,     0,     0,  1299,   337,   338,   339,   340,
-     341,   342,   343,   344,   345,   346,   347,   348,   349,   350,
-       0,     0,     0,     0,   351,     0,     0,     0,     0,     0,
-       0,     0,     0,  1300,   337,   338,   339,   340,   341,   342,
-     343,   344,   345,   346,   347,   348,   349,   350,     0,     0,
-       0,     0,   351,     0,     0,     0,     0,     0,     0,     0,
-       0,  1320,   337,   338,   339,   340,   341,   342,   343,   344,
-     345,   346,   347,   348,   349,   350,     0,     0,     0,     0,
-     351,     0,     0,     0,     0,     0,     0,     0,     0,  1323,
-     337,   338,   339,   340,   341,   342,   343,   344,   345,   346,
-     347,   348,   349,   350,     0,     0,     0,     0,   351,     0,
-       0,     0,     0,     0,     0,     0,     0,  1326,   337,   338,
-     339,   340,   341,   342,   343,   344,   345,   346,   347,   348,
-     349,   350,     0,     0,     0,     0,   351,     0,     0,     0,
-       0,     0,     0,     0,     0,  1351,   337,   338,   339,   340,
-     341,   342,   343,   344,   345,   346,   347,   348,   349,   350,
-       0,     0,     0,     0,   351,     0,     0,     0,     0,     0,
-       0,     0,     0,  1354,   337,   338,   339,   340,   341,   342,
-     343,   344,   345,   346,   347,   348,   349,   350,     0,     0,
-       0,     0,   351,     0,     0,     0,     0,     0,     0,     0,
-       0,  1383,   337,   338,   339,   340,   341,   342,   343,   344,
-     345,   346,   347,   348,   349,   350,     0,     0,     0,     0,
-     351,     0,     0,     0,     0,     0,     0,     0,     0,  1385,
-     337,   338,   339,   340,   341,   342,   343,   344,   345,   346,
-     347,   348,   349,   350,     0,     0,     0,     0,   351,     0,
-       0,     0,     0,     0,     0,     0,     0,  1387,   337,   338,
-     339,   340,   341,   342,   343,   344,   345,   346,   347,   348,
-     349,   350,     0,     0,     0,     0,   351,     0,     0,     0,
-       0,     0,     0,     0,     0,  1400,   337,   338,   339,   340,
-     341,   342,   343,   344,   345,   346,   347,   348,   349,   350,
-       0,     0,     0,     0,   351,     0,     0,     0,     0,     0,
-       0,     0,   598,   337,   338,   339,   340,   341,   342,   343,
-     344,   345,   346,   347,   348,   349,   350,     0,     0,     0,
-       0,   351,     0,     0,     0,     0,     0,     0,     0,  1223,
-     337,   338,   339,   340,   341,   342,   343,   344,   345,   346,
-     347,   348,   349,   350,     0,     0,     0,     0,   351,     0,
-     524,     0,     0,     0,     0,   602,   337,   338,   339,   340,
-     341,   342,   343,   344,   345,   346,   347,   348,   349,   350,
-       0,     0,     0,     0,   351,     0,     0,     0,     0,     0,
-       0,   602,   337,   338,   339,   340,   341,   342,   343,   344,
-     345,   346,   347,   348,   349,   350,     0,     0,     0,     0,
-     351,     0,     0,     0,     0,     0,     0,   603,   337,   338,
-     339,   340,   341,   342,   343,   344,   345,   346,   347,   348,
-     349,   350,     0,     0,     0,     0,   351,     0,     0,     0,
-       0,     0,     0,   647,   337,   338,   339,   340,   341,   342,
-     343,   344,   345,   346,   347,   348,   349,   350,     0,     0,
-       0,     0,   351,     0,     0,     0,     0,     0,     0,   698,
-     337,   338,   339,   340,   341,   342,   343,   344,   345,   346,
-     347,   348,   349,   350,     0,     0,     0,     0,   351,     0,
-       0,     0,     0,     0,     0,   699,   337,   338,   339,   340,
-     341,   342,   343,   344,   345,   346,   347,   348,   349,   350,
-       0,     0,     0,     0,   351,     0,     0,     0,     0,     0,
-       0,   712,   337,   338,   339,   340,   341,   342,   343,   344,
-     345,   346,   347,   348,   349,   350,     0,     0,     0,     0,
-     351,     0,     0,     0,     0,     0,     0,   713,   337,   338,
-     339,   340,   341,   342,   343,   344,   345,   346,   347,   348,
-     349,   350,     0,     0,     0,     0,   351,     0,     0,     0,
-       0,     0,     0,   714,   337,   338,   339,   340,   341,   342,
-     343,   344,   345,   346,   347,   348,   349,   350,     0,     0,
-       0,     0,   351,     0,     0,     0,     0,     0,     0,   715,
-     337,   338,   339,   340,   341,   342,   343,   344,   345,   346,
-     347,   348,   349,   350,     0,     0,     0,     0,   351,     0,
-       0,     0,     0,     0,     0,   716,   337,   338,   339,   340,
-     341,   342,   343,   344,   345,   346,   347,   348,   349,   350,
-       0,     0,     0,     0,   351,     0,     0,     0,     0,     0,
-       0,   717,   337,   338,   339,   340,   341,   342,   343,   344,
-     345,   346,   347,   348,   349,   350,     0,     0,     0,     0,
-     351,     0,     0,     0,     0,     0,     0,   799,   337,   338,
-     339,   340,   341,   342,   343,   344,   345,   346,   347,   348,
-     349,   350,     0,     0,     0,     0,   351,     0,     0,     0,
-       0,     0,     0,   800,   337,   338,   339,   340,   341,   342,
-     343,   344,   345,   346,   347,   348,   349,   350,     0,     0,
-       0,     0,   351,     0,     0,     0,     0,     0,     0,   801,
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-     345,   346,   347,   348,   349,   350,     0,     0,     0,     0,
-     351,     0,   816,   337,   338,   339,   340,   341,   342,   343,
-     344,   345,   346,   347,   348,   349,   350,     0,     0,     0,
-       0,   351,     0,   817,   337,   338,   339,   340,   341,   342,
-     343,   344,   345,   346,   347,   348,   349,   350,     0,     0,
-       0,     0,   351,     0,   821,   337,   338,   339,   340,   341,
-     342,   343,   344,   345,   346,   347,   348,   349,   350,     0,
-       0,     0,     0,   351,     0,   991,   337,   338,   339,   340,
+     348,   349,   350,   351,     0,     0,     0,     0,   352,     0,
+     820,   338,   339,   340,   341,   342,   343,   344,   345,   346,
+     347,   348,   349,   350,   351,     0,     0,     0,     0,   352,
+       0,   989,   338,   339,   340,   341,   342,   343,   344,   345,
+     346,   347,   348,   349,   350,   351,     0,     0,     0,     0,
+     352,     0,   991,   338,   339,   340,   341,   342,   343,   344,
+     345,   346,   347,   348,   349,   350,   351,     0,     0,     0,
+       0,   352,     0,   993,   338,   339,   340,   341,   342,   343,
+     344,   345,   346,   347,   348,   349,   350,   351,     0,     0,
+       0,     0,   352,     0,   995,   338,   339,   340,   341,   342,
+     343,   344,   345,   346,   347,   348,   349,   350,   351,     0,
+       0,     0,     0,   352,     0,   999,   338,   339,   340,   341,
+     342,   343,   344,   345,   346,   347,   348,   349,   350,   351,
+       0,     0,     0,     0,   352,     0,  1149,   338,   339,   340,
      341,   342,   343,   344,   345,   346,   347,   348,   349,   350,
-       0,     0,     0,     0,   351,     0,   993,   337,   338,   339,
+     351,     0,     0,     0,     0,   352,     0,  1165,   338,   339,
      340,   341,   342,   343,   344,   345,   346,   347,   348,   349,
-     350,     0,     0,     0,     0,   351,     0,   995,   337,   338,
+     350,   351,     0,     0,     0,     0,   352,     0,  1183,   338,
      339,   340,   341,   342,   343,   344,   345,   346,   347,   348,
-     349,   350,     0,     0,     0,     0,   351,     0,   997,   337,
+     349,   350,   351,     0,     0,     0,     0,   352,     0,  1343,
      338,   339,   340,   341,   342,   343,   344,   345,   346,   347,
-     348,   349,   350,     0,     0,     0,     0,   351,     0,  1001,
-     337,   338,   339,   340,   341,   342,   343,   344,   345,   346,
-     347,   348,   349,   350,     0,     0,     0,     0,   351,     0,
-    1151,   337,   338,   339,   340,   341,   342,   343,   344,   345,
-     346,   347,   348,   349,   350,     0,     0,     0,     0,   351,
-       0,  1167,   337,   338,   339,   340,   341,   342,   343,   344,
-     345,   346,   347,   348,   349,   350,     0,     0,     0,     0,
-     351,     0,  1185,   337,   338,   339,   340,   341,   342,   343,
-     344,   345,   346,   347,   348,   349,   350,     0,     0,     0,
-       0,   351,     0,  1345,   337,   338,   339,   340,   341,   342,
-     343,   344,   345,   346,   347,   348,   349,   350,     0,     0,
-       0,     0,   351,     0,  1398,   337,   338,   339,   340,   341,
-     342,   343,   344,   345,   346,   347,   348,   349,   350,     0,
-       0,     0,     0,   351
+     348,   349,   350,   351,     0,     0,     0,     0,   352,     0,
+    1396,   338,   339,   340,   341,   342,   343,   344,   345,   346,
+     347,   348,   349,   350,   351,     0,     0,     0,     0,   352
 };
 
 static const yytype_int16 yycheck[] =
 {
-       6,   206,   401,   402,     6,     4,     3,   326,     4,    13,
-       4,     4,   217,     4,     6,     4,     4,     4,   146,   147,
-       6,   257,   258,   259,     6,   153,     6,     4,     4,     4,
-      54,     4,   740,     5,     4,     6,     5,     5,     4,     6,
-       6,     6,     0,     6,    69,   149,  1078,     4,   253,     6,
-     255,     7,   156,    78,    48,   179,   180,   181,    52,    84,
-      85,   149,     6,    88,    89,   141,   142,   143,    62,   139,
-     140,   808,   148,   150,   310,   311,   312,   313,   155,   315,
-     316,   317,    48,     7,   149,   155,     6,   157,   212,     4,
-       5,   156,    94,    92,    93,    94,    95,     6,   139,   140,
-     139,   140,    51,   139,   140,    54,     6,    56,     7,   812,
-       6,   102,   103,   102,   103,   156,   155,   110,   157,    90,
-     156,    36,    37,    38,    39,    90,   149,    42,   149,   135,
-     136,   137,   157,   156,   140,   141,   150,     7,   149,   145,
-     151,   155,   151,    48,   136,   151,    51,   144,   154,    54,
-     136,    56,    58,   149,   160,   161,   162,   163,   157,   165,
-     166,   167,   168,   156,   170,   171,   172,  1199,   156,   156,
-     146,   147,   149,    54,   149,   151,   884,   153,    54,   156,
-      56,   156,   158,   156,   156,   191,   156,   156,   156,   156,
-    1222,   197,   198,   156,   151,   139,   140,   153,   139,   140,
-     206,   149,   117,   118,   128,   129,   152,   412,     7,   155,
-     529,   161,   149,   950,   149,   156,   166,   150,    51,   156,
-     170,    54,   155,    56,   230,   231,   149,   126,   127,   128,
-     129,   146,   147,   239,   240,   241,    51,   243,   153,    54,
-     246,   247,   149,   249,   139,   140,   451,   146,   147,   591,
-     592,   593,   146,   147,   153,   261,   126,   127,   128,   129,
-     155,   149,   268,   269,   270,   271,   272,   273,   274,   275,
+       6,     5,   206,   402,   403,     6,     3,     6,     6,     0,
+     258,   259,   260,   217,     6,   324,     4,     4,   327,    13,
+       4,     6,     4,     4,     4,     4,     4,     4,   151,     4,
+       4,   150,     5,   156,   739,     6,     5,  1076,     6,     6,
+      70,     4,     4,     6,     6,   140,   141,   150,     7,    79,
+     254,     4,   256,    55,   157,    85,    86,     6,    70,    89,
+      90,     6,   157,   311,   312,   313,   314,    79,   316,   317,
+     318,   811,     6,    85,    86,   150,     7,    89,    90,     4,
+       5,     7,   157,   151,    39,    40,    49,    42,   156,   161,
+       7,     6,   140,   141,   166,   140,   141,     6,   170,   179,
+     180,   181,    94,   140,   141,    93,    94,    95,    96,   157,
+     152,   156,    37,    38,    39,    40,   140,   141,    43,   156,
+       6,   158,   140,   141,    91,   103,   104,   111,   158,   135,
+     136,   137,   212,   157,   140,   141,   147,   148,   156,   137,
+     158,   140,   141,   154,   151,   151,   158,   144,   154,   156,
+     103,   104,   137,   157,   160,   161,   162,   163,  1197,   165,
+     166,   167,   168,   150,   170,   171,   172,   147,   148,   150,
+     158,   150,   152,   157,   154,   157,   157,   882,   157,   159,
+     157,  1220,   157,   157,   157,   191,   157,   807,   157,   157,
+     152,   197,   198,   118,   119,   154,   127,   128,   129,   130,
+     206,   127,   128,   129,   130,    91,   150,   150,   150,   413,
+     127,   128,   129,   130,   157,   157,   147,   148,   156,   151,
+     158,   530,   147,   148,   156,   231,   232,   150,     7,   154,
+     147,   148,   140,   141,   240,   241,   242,   154,   244,   194,
+     195,   247,   248,     4,   250,   140,   141,   202,   156,   453,
+     158,   206,   150,   325,    52,   150,   262,    55,    52,    57,
+     150,    55,   157,   269,   270,   271,   272,   273,   274,   275,
      276,   277,   278,   279,   280,   281,   282,   283,   284,   285,
      286,   287,   288,   289,   290,   291,   292,   293,   294,   295,
      296,   297,   298,   299,   300,   301,   302,   303,   304,   305,
-     306,   307,   308,   309,  1012,   150,    69,    54,   314,   150,
-     155,     6,   146,   147,   155,    78,  1348,   151,   324,   153,
-       8,    84,    85,    54,   158,    88,    89,   126,   127,   128,
-     129,   337,   338,   339,   340,   341,   342,   343,   344,   345,
-     346,   347,   348,   349,   350,   351,   326,   146,   147,   139,
-     140,    54,     7,   359,     4,     5,   139,   140,   149,   365,
-     151,   139,   140,   149,   370,   155,   149,   157,    51,   375,
-     376,   377,   378,   156,   324,    56,   382,   155,     8,   139,
-     140,   387,   388,   389,   156,  1417,    36,    37,    38,    39,
-     139,   140,    42,    54,   157,   155,   139,   140,   404,   405,
-     406,   407,   408,   409,   401,   402,   155,   413,   414,   415,
-     416,   417,   155,   149,   420,   151,   156,   423,   424,   139,
-     140,   427,   428,   429,   430,   431,   662,   433,   149,    54,
-     151,   437,   149,    51,   151,   155,   442,   443,    39,    40,
-      51,    42,   130,   131,   132,   133,   134,   135,   136,   137,
-     138,   139,   140,   141,   142,   143,   149,   149,   151,   151,
-     148,   467,   149,   149,   470,   151,    69,   117,   118,   157,
-       4,   126,   127,   128,   129,    78,     4,   427,   428,     6,
-       7,    84,    85,     4,   720,    88,    89,   437,     6,   469,
-     726,   146,   147,   139,   140,    52,   149,  1205,   151,   151,
-     130,   131,   132,   133,   134,   135,   136,   137,   138,   139,
-     140,   141,   142,   143,   750,   149,   149,   523,   148,   155,
-     150,   157,   149,    69,   151,   531,   149,  1230,   530,  1232,
-       4,  1234,    78,     5,    48,   139,   140,    51,    84,    85,
-      54,     4,    88,    89,  1281,     7,   155,  1284,   157,   529,
-    1287,   155,   139,   140,   560,   561,   149,   876,   877,   149,
-     566,   567,    69,   149,    36,    37,    38,    39,   155,   149,
-      42,    78,   156,   149,   580,   151,   149,    84,    85,   585,
-     149,    88,    89,   149,   590,   591,   592,   593,   590,   591,
-     592,   593,   598,   194,   195,   149,   602,   603,   139,   140,
-     149,   202,   608,   139,   140,   206,   149,   149,   151,   151,
-     560,   157,   149,     6,   155,   621,   173,   623,   149,   155,
-     151,     8,   179,   180,   181,   139,   140,   149,   634,   151,
-    1333,     4,  1369,   190,   640,   149,   193,   149,    69,   151,
-     149,   647,   156,   649,   650,   117,   118,    78,   598,   655,
-     157,   149,     5,    84,    85,   212,   213,    88,    89,     6,
-    1059,   139,   140,   149,  1401,   151,   161,  1404,     6,   149,
-    1407,   166,   149,  1410,   151,   170,   149,   155,   151,  1382,
-     149,  1384,   662,  1386,   634,    69,   139,   140,   156,  1392,
-     640,   149,   698,   699,    78,  1432,   155,  1434,   157,  1436,
-      84,    85,   155,   149,    88,    89,   712,   713,   714,   715,
-     716,   717,   149,   719,    69,   139,   140,  1420,   724,  1422,
-     149,  1424,   151,    78,   149,     4,   157,   733,   149,    84,
-      85,   155,   149,    88,    89,   230,   231,   743,   744,   745,
-     746,   747,   156,   130,   131,   132,   133,   134,   135,   136,
-     137,   138,   139,   140,   141,   142,   143,   156,   149,    69,
-     151,   148,     4,   149,   156,   139,   140,   149,    78,   719,
-     157,   139,   140,   157,    84,    85,   139,   140,    88,    89,
-       6,   155,   149,     6,  1020,   139,   140,   155,    69,   155,
-     149,   157,   155,   743,   744,   745,   746,    78,   399,   400,
-     151,   155,   157,    84,    85,    69,   407,    88,    89,   151,
-     156,   153,   139,   140,    78,   156,    12,    13,   151,   151,
-      84,    85,     6,   153,    88,    89,   832,  1226,   155,   324,
-      72,    73,    74,    75,   155,   155,   157,   157,    80,     5,
-     155,    83,   157,   155,   155,   157,   157,   157,     5,   829,
-     856,   857,    48,    49,    50,    51,    52,    53,    54,    55,
-      56,    57,     5,    59,   359,    69,    62,    63,     6,    65,
-      66,    67,   156,     6,    78,    71,   157,   105,     6,   885,
-      84,    85,   151,     6,    88,    89,   139,   140,   141,   142,
-     143,   897,   898,   157,   155,   148,   157,   877,   155,     4,
-     157,    97,    98,    99,   130,   131,   132,   133,   134,   135,
-     136,   137,   138,   139,   140,   141,   142,   143,   155,   155,
-     157,   157,   148,   155,     6,   157,   932,   933,   934,     4,
-      69,     6,   427,   428,   156,   941,   942,   148,   155,    78,
-     157,   153,   437,   949,     7,    84,    85,   156,   443,    88,
-      89,   957,   155,   157,   157,   155,   155,   157,   157,   151,
-     157,   157,    69,     7,     7,   971,   972,   973,   525,   526,
-     527,    78,   155,   155,   157,   157,     7,    84,    85,   985,
-     149,    88,    89,     7,   990,   132,   133,   134,   135,   136,
-     137,   138,   139,   140,   141,   142,   143,   149,   149,  1005,
-     601,   148,  1004,   983,   149,   146,   147,   957,   150,   155,
-     151,   157,   153,   614,     6,   156,  1022,   158,   157,  1025,
-     155,   155,   157,   157,     7,  1031,  1032,     7,     6,   586,
-    1036,   155,   102,   157,  1239,   156,   155,  1043,   157,   155,
-     597,   157,   155,   155,   157,   157,   155,  1053,   157,  1055,
-     157,   155,   155,  1055,   157,   155,   155,   157,   157,   155,
-    1066,   157,  1059,   150,   155,   560,   157,   155,     6,   157,
-    1076,   566,   567,   150,  1080,   155,   150,  1083,   150,   150,
-       4,    12,    13,   150,   150,     6,  1092,   155,   152,     4,
-    1092,     7,   105,     7,     7,  1101,  1102,     7,   105,     7,
-       7,   105,     7,   598,     7,     4,     6,   153,   157,   157,
-       6,   153,     7,     7,     7,  1121,     4,    48,    49,    50,
-      51,    52,    53,    54,    55,    56,    57,     7,    59,  1334,
-       7,    62,    63,     7,    65,    66,    67,     7,   149,   634,
-      71,   149,   156,     6,     6,   640,  1152,     6,     6,   152,
-       6,     6,   151,     7,   755,     6,    54,   136,     7,     7,
-       7,  1397,     7,  1169,    56,  1171,    97,    98,    99,     7,
-       7,     7,     6,   150,     7,  1181,   150,  1183,   150,   150,
-    1186,     7,     7,     7,     6,     4,     4,   156,   149,  1195,
-       6,  1427,     7,  1429,  1200,     6,   156,     7,   799,   800,
-     801,     7,   759,   760,     7,   762,     6,   764,   765,     6,
-    1446,   768,   769,     6,    54,     6,     6,  1223,     4,     4,
-       4,   156,   156,  1229,   719,  1231,   157,  1233,   156,  1226,
-     156,     6,     4,     6,   156,   153,  1186,  1243,   149,     7,
-       6,  1247,    62,     6,   150,     6,   150,   156,   743,   744,
-     745,   746,     6,  1259,  1260,   156,     6,     6,     5,   156,
-    1266,     6,     4,     7,   151,   156,     7,  1273,     7,    12,
-      13,  1277,     7,  1223,     7,     6,     6,   834,   835,   836,
-     133,   134,   135,   136,   137,   138,   139,   140,   141,   142,
-     143,   156,     6,  1243,     6,   148,   156,     6,     6,   156,
-    1306,     7,   152,     6,   156,    48,    49,    50,    51,    52,
-      53,    54,    55,    56,    57,  1321,    59,     6,  1324,    62,
-      63,  1327,    65,    66,    67,  1331,   153,   101,    71,  1335,
-       4,  1337,   155,     6,     6,     6,     6,     6,     6,     6,
-    1346,     6,     6,  1349,     5,   105,   903,     6,   949,     6,
-       6,     6,   909,     6,    97,    98,    99,     6,   915,   916,
-     917,     6,     6,     6,   921,     6,     6,     4,   155,   926,
-     927,   928,     6,   135,   136,   137,   138,   139,   140,   141,
-     142,   143,     6,     6,   941,  1335,   148,  1337,  1394,   156,
-     155,     6,     5,     7,   951,     6,   155,   155,   955,   130,
+     306,   307,   308,   309,   310,  1010,   151,  1346,   150,   315,
+     152,   156,    73,    74,    75,    76,   147,   148,   153,   325,
+      81,   156,    52,    84,   150,    55,   327,    57,   948,     4,
+       6,     7,   338,   339,   340,   341,   342,   343,   344,   345,
+     346,   347,   348,   349,   350,   351,   352,   150,   127,   128,
+     129,   130,    59,   150,   360,   152,   428,   429,     4,     5,
+     366,    55,    55,   140,   141,   371,     6,   439,   147,   148,
+     376,   377,   378,   379,    49,    55,  1415,   383,    53,   156,
+     140,   141,   388,   389,   390,   592,   593,   594,    63,   140,
+     141,    37,    38,    39,    40,    55,   156,    43,    57,   405,
+     406,   407,   408,   409,   410,   402,   403,   150,   414,   415,
+     416,   417,   418,    52,    55,   421,   664,     8,   424,   425,
+     157,    70,   428,   429,   430,   431,   432,   140,   141,   435,
+      79,   140,   141,   439,   157,    70,    85,    86,   444,   445,
+      89,    90,    55,   156,    79,   400,   401,   156,    52,    70,
+      85,    86,    52,   408,    89,    90,     4,     4,    79,   140,
+     141,   140,   141,   469,    85,    86,   472,     4,    89,    90,
+     471,     6,   118,   119,   722,   156,   150,   156,   140,   141,
+     728,   150,     5,   152,    70,   150,   152,   152,  1228,   561,
+    1230,     4,  1232,    79,   156,   150,    52,   161,  1203,    85,
+      86,   749,   166,    89,    90,   150,   170,   152,   150,   158,
+     152,     4,   140,   141,    37,    38,    39,    40,   150,   525,
+      43,   150,   156,   158,   158,   150,   532,   599,   156,   530,
+      49,   150,   150,    52,   152,   150,    55,   158,   150,   531,
      131,   132,   133,   134,   135,   136,   137,   138,   139,   140,
-     141,   142,   143,   153,   157,     6,    52,   148,     6,     6,
-       6,   978,   979,   980,   981,  1026,     6,   130,   131,   132,
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-     143,    -1,    -1,    -1,    -1,   148,    -1,   150,   130,   131,
+     143,   144,    -1,    -1,    -1,    -1,   149,    -1,   151,   131,
      132,   133,   134,   135,   136,   137,   138,   139,   140,   141,
-     142,   143,    -1,    -1,    -1,    -1,   148,    -1,   150,   130,
+     142,   143,   144,    -1,    -1,    -1,    -1,   149,    -1,   151,
      131,   132,   133,   134,   135,   136,   137,   138,   139,   140,
-     141,   142,   143,    -1,    -1,    -1,    -1,   148,    -1,   150,
-     130,   131,   132,   133,   134,   135,   136,   137,   138,   139,
-     140,   141,   142,   143,    -1,    -1,    -1,    -1,   148,    -1,
-     150,   130,   131,   132,   133,   134,   135,   136,   137,   138,
-     139,   140,   141,   142,   143,    -1,    -1,    -1,    -1,   148,
-      -1,   150,   130,   131,   132,   133,   134,   135,   136,   137,
-     138,   139,   140,   141,   142,   143,    -1,    -1,    -1,    -1,
-     148,    -1,   150,   130,   131,   132,   133,   134,   135,   136,
-     137,   138,   139,   140,   141,   142,   143,    -1,    -1,    -1,
-      -1,   148,    -1,   150,   130,   131,   132,   133,   134,   135,
-     136,   137,   138,   139,   140,   141,   142,   143,    -1,    -1,
-      -1,    -1,   148,    -1,   150,   130,   131,   132,   133,   134,
-     135,   136,   137,   138,   139,   140,   141,   142,   143,    -1,
-      -1,    -1,    -1,   148,    -1,   150,   130,   131,   132,   133,
+     141,   142,   143,   144,    -1,    -1,    -1,    -1,   149,    -1,
+     151,   131,   132,   133,   134,   135,   136,   137,   138,   139,
+     140,   141,   142,   143,   144,    -1,    -1,    -1,    -1,   149,
+      -1,   151,   131,   132,   133,   134,   135,   136,   137,   138,
+     139,   140,   141,   142,   143,   144,    -1,    -1,    -1,    -1,
+     149,    -1,   151,   131,   132,   133,   134,   135,   136,   137,
+     138,   139,   140,   141,   142,   143,   144,    -1,    -1,    -1,
+      -1,   149,    -1,   151,   131,   132,   133,   134,   135,   136,
+     137,   138,   139,   140,   141,   142,   143,   144,    -1,    -1,
+      -1,    -1,   149,    -1,   151,   131,   132,   133,   134,   135,
+     136,   137,   138,   139,   140,   141,   142,   143,   144,    -1,
+      -1,    -1,    -1,   149,    -1,   151,   131,   132,   133,   134,
+     135,   136,   137,   138,   139,   140,   141,   142,   143,   144,
+      -1,    -1,    -1,    -1,   149,    -1,   151,   131,   132,   133,
      134,   135,   136,   137,   138,   139,   140,   141,   142,   143,
-      -1,    -1,    -1,    -1,   148,    -1,   150,   130,   131,   132,
+     144,    -1,    -1,    -1,    -1,   149,    -1,   151,   131,   132,
      133,   134,   135,   136,   137,   138,   139,   140,   141,   142,
-     143,    -1,    -1,    -1,    -1,   148,    -1,   150,   130,   131,
+     143,   144,    -1,    -1,    -1,    -1,   149,    -1,   151,   131,
      132,   133,   134,   135,   136,   137,   138,   139,   140,   141,
-     142,   143,    -1,    -1,    -1,    -1,   148,    -1,   150,   130,
+     142,   143,   144,    -1,    -1,    -1,    -1,   149,    -1,   151,
      131,   132,   133,   134,   135,   136,   137,   138,   139,   140,
-     141,   142,   143,    -1,    -1,    -1,    -1,   148,    -1,   150,
-     130,   131,   132,   133,   134,   135,   136,   137,   138,   139,
-     140,   141,   142,   143,    -1,    -1,    -1,    -1,   148,    -1,
-     150,   130,   131,   132,   133,   134,   135,   136,   137,   138,
-     139,   140,   141,   142,   143,    -1,    -1,    -1,    -1,   148,
-      -1,   150,   130,   131,   132,   133,   134,   135,   136,   137,
-     138,   139,   140,   141,   142,   143,    -1,    -1,    -1,    -1,
-     148,    -1,   150,   130,   131,   132,   133,   134,   135,   136,
-     137,   138,   139,   140,   141,   142,   143,    -1,    -1,    -1,
-      -1,   148,    -1,   150,   130,   131,   132,   133,   134,   135,
-     136,   137,   138,   139,   140,   141,   142,   143,    -1,    -1,
-      -1,    -1,   148,    -1,   150,   130,   131,   132,   133,   134,
-     135,   136,   137,   138,   139,   140,   141,   142,   143,    -1,
-      -1,    -1,    -1,   148,    -1,   150,   130,   131,   132,   133,
+     141,   142,   143,   144,    -1,    -1,    -1,    -1,   149,    -1,
+     151,   131,   132,   133,   134,   135,   136,   137,   138,   139,
+     140,   141,   142,   143,   144,    -1,    -1,    -1,    -1,   149,
+      -1,   151,   131,   132,   133,   134,   135,   136,   137,   138,
+     139,   140,   141,   142,   143,   144,    -1,    -1,    -1,    -1,
+     149,    -1,   151,   131,   132,   133,   134,   135,   136,   137,
+     138,   139,   140,   141,   142,   143,   144,    -1,    -1,    -1,
+      -1,   149,    -1,   151,   131,   132,   133,   134,   135,   136,
+     137,   138,   139,   140,   141,   142,   143,   144,    -1,    -1,
+      -1,    -1,   149,    -1,   151,   131,   132,   133,   134,   135,
+     136,   137,   138,   139,   140,   141,   142,   143,   144,    -1,
+      -1,    -1,    -1,   149,    -1,   151,   131,   132,   133,   134,
+     135,   136,   137,   138,   139,   140,   141,   142,   143,   144,
+      -1,    -1,    -1,    -1,   149,    -1,   151,   131,   132,   133,
      134,   135,   136,   137,   138,   139,   140,   141,   142,   143,
-      -1,    -1,    -1,    -1,   148,    -1,   150,   130,   131,   132,
+     144,    -1,    -1,    -1,    -1,   149,    -1,   151,   131,   132,
      133,   134,   135,   136,   137,   138,   139,   140,   141,   142,
-     143,    -1,    -1,    -1,    -1,   148,    -1,   150,   130,   131,
+     143,   144,    -1,    -1,    -1,    -1,   149,    -1,   151,   131,
      132,   133,   134,   135,   136,   137,   138,   139,   140,   141,
-     142,   143,    -1,    -1,    -1,    -1,   148,    -1,   150,   130,
+     142,   143,   144,    -1,    -1,    -1,    -1,   149,    -1,   151,
      131,   132,   133,   134,   135,   136,   137,   138,   139,   140,
-     141,   142,   143,    -1,    -1,    -1,    -1,   148,    -1,   150,
-     130,   131,   132,   133,   134,   135,   136,   137,   138,   139,
-     140,   141,   142,   143,    -1,    -1,    -1,    -1,   148,    -1,
-     150,   130,   131,   132,   133,   134,   135,   136,   137,   138,
-     139,   140,   141,   142,   143,    -1,    -1,    -1,    -1,   148,
-      -1,   150,   130,   131,   132,   133,   134,   135,   136,   137,
-     138,   139,   140,   141,   142,   143,    -1,    -1,    -1,    -1,
-     148,    -1,   150,   130,   131,   132,   133,   134,   135,   136,
-     137,   138,   139,   140,   141,   142,   143,    -1,    -1,    -1,
-      -1,   148,    -1,   150,   130,   131,   132,   133,   134,   135,
-     136,   137,   138,   139,   140,   141,   142,   143,    -1,    -1,
-      -1,    -1,   148,    -1,   150,   130,   131,   132,   133,   134,
-     135,   136,   137,   138,   139,   140,   141,   142,   143,    -1,
-      -1,    -1,    -1,   148
+     141,   142,   143,   144,    -1,    -1,    -1,    -1,   149,    -1,
+     151,   131,   132,   133,   134,   135,   136,   137,   138,   139,
+     140,   141,   142,   143,   144,    -1,    -1,    -1,    -1,   149
 };
 
 /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
    symbol of state STATE-NUM.  */
 static const yytype_uint8 yystos[] =
 {
-       0,     1,   160,   161,     6,     0,     4,    12,    13,    35,
-      40,    41,    43,    44,    45,    47,    48,    49,    50,    51,
-      52,    53,    54,    55,    56,    57,    59,    60,    61,    62,
-      63,    64,    65,    66,    67,    68,    70,    71,    72,    73,
-      74,    75,    76,    77,    78,    79,    80,    81,    82,    83,
-      86,    87,    91,    96,    97,    98,    99,   102,   104,   106,
-     107,   108,   109,   110,   111,   112,   113,   114,   115,   122,
-     123,   124,   125,   162,   164,   165,   183,   192,   197,   200,
-     201,   202,   203,   204,   205,   206,   226,   227,   228,   229,
-     230,     3,     4,     5,     7,     9,    10,    11,    14,    15,
+       0,     1,   161,   162,     6,     0,     4,    12,    13,    36,
+      41,    42,    44,    45,    46,    48,    49,    50,    51,    52,
+      53,    54,    55,    56,    57,    58,    60,    61,    62,    63,
+      64,    65,    66,    67,    68,    69,    71,    72,    73,    74,
+      75,    76,    77,    78,    79,    80,    81,    82,    83,    84,
+      87,    88,    92,    97,    98,    99,   100,   103,   105,   107,
+     108,   109,   110,   111,   112,   113,   114,   115,   116,   123,
+     124,   125,   126,   163,   165,   166,   184,   193,   198,   201,
+     202,   203,   204,   205,   206,   207,   227,   228,   229,   230,
+     231,     3,     4,     5,     7,     9,    10,    11,    14,    15,
       16,    17,    18,    19,    20,    21,    22,    23,    24,    25,
-      26,    27,    28,    29,    30,    31,    32,    33,    34,    36,
-      37,    38,    39,    42,   110,   116,   117,   118,   119,   120,
-     121,   126,   127,   128,   129,   139,   140,   144,   146,   147,
-     149,   151,   153,   154,   156,   181,   182,   231,   232,   244,
-      13,    54,   149,     6,   156,     6,     6,     6,     6,   151,
-     149,   156,   149,   149,     4,   149,   156,   149,   149,     4,
-     156,   149,   149,    58,    54,    54,     6,    54,    54,    51,
-      54,    56,    56,    48,    51,    54,    56,    51,    54,    56,
-      51,    54,   149,    51,   156,   139,   140,   149,   156,   233,
-     234,   233,   156,    48,    51,    54,   156,   233,     4,    48,
-      52,    62,    54,    54,    51,     4,   110,   156,     4,     6,
-      48,    51,     4,     4,     4,     5,    48,    51,    54,    56,
-     140,   156,   197,   206,   231,   236,   237,   238,     4,   149,
-     149,   149,     4,   156,   240,     4,   149,   149,     6,   151,
-       4,     4,     5,   156,     5,   156,   149,   149,   149,   149,
-       4,   151,   153,   158,   182,   156,     5,   244,   149,   151,
-     149,   151,   149,   151,   149,   151,   149,   151,   149,   151,
-     149,   151,   149,   151,   149,   151,   149,   151,   149,   151,
-     149,   151,   149,   151,   149,   151,   149,   151,   149,   151,
-     149,   151,   149,   151,   149,   151,   149,   151,   149,   151,
-     149,   149,   149,   149,     7,   149,   149,   149,     4,   231,
-     231,   231,   231,   152,   156,   231,     4,   102,   103,     4,
-       4,   197,   198,   199,   231,     6,     6,   130,   131,   132,
+      26,    27,    28,    29,    30,    31,    32,    33,    34,    37,
+      38,    39,    40,    43,   111,   117,   118,   119,   120,   121,
+     122,   127,   128,   129,   130,   140,   141,   145,   147,   148,
+     150,   152,   154,   155,   157,   182,   183,   232,   233,   245,
+      13,    55,   150,     6,   157,     6,     6,     6,     6,   152,
+     150,   157,   150,   150,     4,   150,   157,   150,   150,     4,
+     157,   150,   150,    59,    55,    55,     6,    55,    55,    52,
+      55,    57,    57,    49,    52,    55,    57,    52,    55,    57,
+      52,    55,   150,    52,   157,   140,   141,   150,   157,   234,
+     235,   234,   157,    49,    52,    55,   157,   234,     4,    49,
+      53,    63,    55,    55,    52,     4,   111,   157,     4,     6,
+      49,    52,     4,     4,     4,     5,    35,    49,    52,    55,
+      57,   141,   157,   198,   207,   232,   237,   238,   239,     4,
+     150,   150,   150,     4,   157,   241,     4,   150,   150,     6,
+     152,     4,     4,     5,   157,     5,   157,   150,   150,   150,
+     150,     4,   152,   154,   159,   183,   157,     5,   245,   150,
+     152,   150,   152,   150,   152,   150,   152,   150,   152,   150,
+     152,   150,   152,   150,   152,   150,   152,   150,   152,   150,
+     152,   150,   152,   150,   152,   150,   152,   150,   152,   150,
+     152,   150,   152,   150,   152,   150,   152,   150,   152,   150,
+     152,   150,   150,   150,   150,     7,   150,   150,   150,     4,
+     232,   232,   232,   232,   153,   157,   232,     4,   103,   104,
+       4,     4,   198,   199,   200,   237,     6,     6,   131,   132,
      133,   134,   135,   136,   137,   138,   139,   140,   141,   142,
-     143,   148,     6,     6,   231,     5,   231,   185,   231,   140,
-     231,   238,   239,   231,   231,   149,   231,   239,   231,   231,
-     149,   239,   231,   231,   236,   149,   156,   149,   149,   237,
-     237,   237,   149,   193,   194,   195,   196,   149,   149,   149,
-     236,   231,     4,   236,   233,   233,   233,   231,   231,   139,
-     140,   156,   156,   233,   156,   156,   156,   139,   140,   149,
-     199,   233,   156,   149,   156,   149,   149,   149,   237,   236,
-     149,     4,     6,   151,   151,   199,     6,   156,   156,   151,
-     151,   151,     5,   156,     5,     5,     5,   156,   231,   238,
-     157,   239,     8,   141,     6,     6,   231,   231,   231,   153,
-     231,   156,   105,   231,   231,   231,     6,     6,   199,     6,
-     199,     4,   243,   244,   243,   243,   243,   151,   231,     4,
-     156,   166,     6,   231,   231,   231,   231,   231,   231,   231,
-     231,   231,   231,   231,   231,   231,   231,   231,   231,   231,
-     231,   231,   231,   231,   231,   231,   231,   231,   231,   231,
-     231,   231,   231,   231,   231,   231,   231,   231,   231,   231,
-     231,   231,   231,   231,   231,   243,   243,   243,   243,   231,
-     243,   243,   243,   151,   150,     7,   128,   129,   239,   152,
-       7,   181,   182,   153,     7,   151,   157,    48,    51,    54,
-      56,   192,     6,   231,   231,   231,   231,   231,   231,   231,
-     231,   231,   231,   231,   231,   231,   231,   231,     6,   150,
-     155,   155,   152,   155,   184,   150,   141,   155,   157,   150,
-     150,   231,   150,   157,   150,   150,   231,   157,   150,   150,
-       7,   231,   231,   231,   231,     7,     7,   224,   224,   231,
-     149,   149,   149,   149,   231,   231,   231,     7,   156,   150,
-       6,   155,   155,   155,   233,   233,   198,   198,   155,   231,
-     231,   231,   231,   210,   155,   199,   231,   231,   231,   231,
-     231,     7,   225,     7,   231,     6,   231,   231,   157,   239,
-     239,   231,   231,   152,   156,   231,   231,   239,   157,   231,
-     156,   231,   238,   150,   150,   150,   102,   155,   199,   156,
-       8,   150,   152,   157,   157,   151,   153,   150,   150,   150,
-     150,   231,   152,   182,   231,     4,    92,    93,    94,    95,
-     157,   169,   173,   176,   178,   179,   150,   152,   150,   152,
-     150,   152,   150,   152,   150,   152,   150,   152,   150,   152,
-     150,   152,   150,   152,   150,   152,   150,   152,   155,   155,
-     150,   152,   150,   152,   150,   152,   150,   152,   150,   152,
-     150,   152,   155,   155,   155,   155,   155,   155,   150,   155,
-     155,   150,   150,     6,   155,   150,   155,   236,   236,   236,
-     157,     7,   153,   181,   182,   244,   231,     6,     4,     4,
-     156,   241,   152,   156,   156,   156,   156,     8,     6,   136,
-     163,   239,   231,     6,     4,     7,   231,   238,   105,     7,
-       7,   150,     7,   105,     7,     7,   150,   105,     7,     7,
-     231,   150,   157,   150,   150,   231,   236,     4,   223,     6,
-     150,   189,   231,   244,   189,   189,   189,   150,   150,   150,
-     236,   239,   153,   233,   231,   231,   157,   157,   231,   155,
-     155,   155,    69,    78,    84,    85,    88,    89,   220,   221,
-     233,   157,   207,   150,   157,   150,   150,   150,   231,     6,
-     231,   150,   152,   152,   157,   157,   152,   152,   239,   152,
-     157,   157,     8,   239,     7,     7,     7,   153,   231,   157,
-     231,   231,     7,   153,   231,     4,     7,     7,     7,     7,
-     152,   153,   182,   243,   157,   170,   149,   149,   156,   180,
-       6,   231,   231,   231,   231,   231,   231,   231,   231,   239,
-     243,   231,   243,     6,     6,     6,   152,     4,   102,   103,
-     231,     6,     6,     6,     7,   151,   240,   242,     6,   239,
-     239,   239,   239,   231,   136,   243,   150,   155,     7,   233,
-      54,   236,   236,     7,   236,    54,    56,   236,   236,     7,
-      56,   236,   236,     6,     7,     7,     7,     7,    69,   222,
-       6,     7,   150,   150,   150,   150,     7,     7,     7,     6,
-     157,     4,   155,   155,   155,   157,   233,   233,   233,     4,
-       6,   156,   149,     6,    90,     6,    90,   157,   221,   155,
-     220,     7,     6,     7,     7,     7,     6,   156,     6,     6,
-       6,    54,     6,     6,   157,   231,   157,   236,   236,   236,
-       4,   155,     8,     8,   150,     4,     4,   152,   156,   156,
-     156,   156,     6,     4,     6,   149,   231,   231,   235,   236,
-     156,   150,   152,   150,   152,   150,   152,   150,   152,   150,
-     150,   150,   150,   181,     7,   181,   182,   153,     7,     6,
-     240,   231,   155,   157,   157,   157,   157,   157,     6,     6,
-     163,   231,   156,   231,     6,   156,    62,   191,   191,   236,
-       6,   156,   156,     6,     6,   236,   156,     6,     6,     5,
-     236,   236,   236,     4,     6,   236,     7,     7,     7,     7,
-     236,   236,   236,     7,     6,     7,   231,   231,   231,   156,
-     155,   157,   155,   157,   155,   157,   151,   231,   236,   231,
-       6,     6,   231,   233,   157,     5,   156,   236,   156,   156,
-     156,   236,   239,   156,   152,     6,     6,   101,   231,   231,
-     231,     6,     7,   153,   236,   236,   236,   236,   182,   167,
-     231,   155,   155,   155,   157,   168,   231,   236,   244,   231,
-       6,     4,   241,     6,   152,   240,     6,     6,     6,     6,
-     243,   155,   231,   231,   233,     6,     6,     6,   231,   231,
-       6,   231,     5,     6,     6,   105,   190,   231,     6,   236,
-     236,   236,   236,     6,     4,     6,     6,   231,   231,   244,
-     157,   150,   155,   157,   198,   233,     6,   211,   233,     6,
-     212,   233,     6,   213,   231,   157,   155,   150,   157,   155,
-       6,   140,   233,     6,   235,   233,   233,     6,   157,   231,
-     236,   155,   157,     8,   157,   150,   156,   231,   244,     4,
-     155,   155,   155,   155,   150,   155,   231,   231,   236,   156,
-     155,   157,     6,     6,     6,     7,     6,   153,     6,   231,
-     186,   157,   157,   157,   157,     5,    52,     6,     6,     6,
-       6,     6,   156,   156,     6,     6,   156,   231,   157,   155,
-     156,   155,   156,   155,   156,   152,     6,   236,     7,   156,
-     231,   155,   157,   155,   155,     6,   157,   100,   231,   231,
-     239,     6,     6,   236,   236,   236,   236,   171,   231,   155,
-     155,   235,   231,     6,   240,   103,   155,   187,     6,     6,
-       6,     6,     6,   156,   235,   239,   198,   155,   157,   231,
-     233,   220,   231,   233,   220,   231,   233,   220,     6,   155,
-     157,   236,   199,   157,   233,     6,   239,   233,   231,   157,
-     157,   157,   157,   157,   157,   157,   156,   231,   231,   157,
-       6,   231,   155,   157,   188,   231,   157,   157,   157,   231,
-     157,   155,   157,   157,   155,   157,   157,   155,   157,   236,
-       6,    69,   157,   208,   156,   155,   157,   155,     6,     6,
-       6,     6,     6,     6,   168,   150,   155,     6,   156,   155,
-       4,   157,     6,     6,   157,     6,   214,   231,     6,     6,
-     215,   231,     6,     6,   216,   231,     6,   157,   231,   220,
-     199,   239,     6,   233,   239,   157,   174,   231,   235,   231,
-       5,   236,   156,   157,   156,   157,   156,   157,     6,     6,
-     157,   157,   209,   157,   155,   157,     6,   156,   150,   157,
-     157,   220,     6,   217,   220,     6,   218,   220,     6,   219,
-     220,     6,   239,     6,   172,   243,   177,   156,     6,   157,
-     156,   157,   156,   157,   156,   157,   157,   155,   157,   156,
-     235,     6,   220,     6,   220,     6,   220,     6,   243,     6,
-     175,   243,   157,   157,   157,   157,   155,   157,     6,     6,
-       6,     6,   243,     6
+     143,   144,   149,     6,     6,   232,     5,   232,   186,   232,
+     141,   232,   239,   240,   232,   232,   150,   232,   240,   232,
+     232,   150,   240,   232,   232,   237,   150,   157,   150,   150,
+     238,   238,   238,   150,   194,   195,   196,   197,   150,   150,
+     150,   237,   232,     4,   237,   234,   234,   234,   232,   232,
+     140,   141,   157,   157,   234,   157,   157,   157,   140,   141,
+     150,   200,   234,   157,   150,   157,   150,   150,   150,   238,
+     237,   150,     4,     6,   152,   152,   200,     6,   157,   157,
+     152,   152,   152,   152,     5,   157,     5,     5,     5,   157,
+     232,   239,   158,   240,     8,   142,     6,     6,   232,   232,
+     232,   154,   232,   157,   106,   232,   232,   232,     6,     6,
+     200,     6,   200,     4,   244,   245,   244,   244,   244,   152,
+     232,     4,   157,   167,     6,   232,   232,   232,   232,   232,
+     232,   232,   232,   232,   232,   232,   232,   232,   232,   232,
+     232,   232,   232,   232,   232,   232,   232,   232,   232,   232,
+     232,   232,   232,   232,   232,   232,   232,   232,   232,   232,
+     232,   232,   232,   232,   232,   232,   232,   244,   244,   244,
+     244,   232,   244,   244,   244,   152,   151,     7,   182,   240,
+     153,     7,   182,   183,   154,     7,   152,   158,    49,    52,
+      55,    57,   193,     6,   232,   232,   232,   232,   232,   232,
+     232,   232,   232,   232,   232,   232,   232,   232,   232,     6,
+     151,   156,   156,   153,   156,   185,   151,   142,   156,   158,
+     151,   151,   232,   151,   158,   151,   151,   232,   158,   151,
+     151,     7,   232,   232,   232,   232,     7,     7,   225,   225,
+     232,   150,   150,   150,   150,   232,   232,   232,     7,   157,
+     151,     6,   156,   156,   156,   234,   234,   199,   199,   156,
+     232,   232,   232,   232,   211,   156,   200,   232,   232,   232,
+     232,   232,     7,   226,     7,   232,     6,   232,   232,   158,
+     240,   240,   232,   232,   153,   157,   232,     4,   232,   240,
+     158,   232,   157,   232,   239,   151,   151,   151,   103,   156,
+     200,   157,     8,   151,   153,   158,   158,   152,   154,   151,
+     151,   151,   151,   232,   153,   183,   232,     4,    93,    94,
+      95,    96,   158,   170,   174,   177,   179,   180,   151,   153,
+     151,   153,   151,   153,   151,   153,   151,   153,   151,   153,
+     151,   153,   151,   153,   151,   153,   151,   153,   151,   153,
+     156,   156,   151,   153,   151,   153,   151,   153,   151,   153,
+     151,   153,   151,   153,   156,   156,   156,   156,   156,   156,
+     151,   156,   156,   151,   151,     6,   156,   151,   156,   237,
+     158,   154,   182,   183,   245,   232,     6,     4,     4,   157,
+     242,   153,   157,   157,   157,   157,     8,     6,   137,   164,
+     240,   232,     6,     4,     7,   232,   239,   106,     7,     7,
+     151,     7,   106,     7,     7,   151,   106,     7,     7,   232,
+     151,   158,   151,   151,   232,   237,     4,   224,     6,   151,
+     190,   232,   245,   190,   190,   190,   151,   151,   151,   237,
+     240,   154,   234,   232,   232,   158,   158,   232,   156,   156,
+     156,    70,    79,    85,    86,    89,    90,   221,   222,   234,
+     158,   208,   151,   158,   151,   151,   151,   232,     6,   232,
+     151,   153,   153,   158,   158,   153,   153,   240,   153,   153,
+     158,   158,     8,   240,     7,     7,     7,   154,   232,   158,
+     232,   232,     7,   154,   232,     4,     7,     7,     7,     7,
+     153,   154,   183,   244,   158,   171,   150,   150,   157,   181,
+       6,   232,   232,   232,   232,   232,   232,   232,   232,   240,
+     244,   232,   244,     6,   153,     4,   103,   104,   232,     6,
+       6,     6,     7,   152,   241,   243,     6,   240,   240,   240,
+     240,   232,   137,   244,   151,   156,     7,   234,    55,   237,
+     237,     7,   237,    55,    57,   237,   237,     7,    57,   237,
+     237,     6,     7,     7,     7,     7,    70,   223,     6,     7,
+     151,   151,   151,   151,     7,     7,     7,     6,   158,     4,
+     156,   156,   156,   158,   234,   234,   234,     4,     6,   157,
+     150,     6,    91,     6,    91,   158,   222,   156,   221,     7,
+       6,     7,     7,     7,     6,   157,     6,     6,     6,    55,
+       6,     6,   158,   232,   158,   237,   237,   237,     4,   156,
+       8,     8,   151,     4,     4,   153,   157,   157,   157,   157,
+       6,     4,     6,   150,   232,   232,   236,   237,   157,   151,
+     153,   151,   153,   151,   153,   151,   153,   151,   151,   151,
+     151,   182,     7,   182,   183,   154,     7,     6,   241,   232,
+     156,   158,   158,   158,   158,   158,     6,     6,   164,   232,
+     157,   232,     6,   157,    63,   192,   192,   237,     6,   157,
+     157,     6,     6,   237,   157,     6,     6,     5,   237,   237,
+     237,     4,     6,   237,     7,     7,     7,     7,   237,   237,
+     237,     7,     6,     7,   232,   232,   232,   157,   156,   158,
+     156,   158,   156,   158,   152,   232,   237,   232,     6,     6,
+     232,   234,   158,     5,   157,   237,   157,   157,   157,   237,
+     240,   157,   153,     6,     6,   102,   232,   232,   232,     6,
+       7,   154,   237,   237,   237,   237,   183,   168,   232,   156,
+     156,   156,   158,   169,   232,   237,   245,   232,     6,     4,
+     242,     6,   153,   241,     6,     6,     6,     6,   244,   156,
+     232,   232,   234,     6,     6,     6,   232,   232,     6,   232,
+       5,     6,     6,   106,   191,   232,     6,   237,   237,   237,
+     237,     6,     4,     6,     6,   232,   232,   245,   158,   151,
+     156,   158,   199,   234,     6,   212,   234,     6,   213,   234,
+       6,   214,   232,   158,   156,   151,   158,   156,     6,   141,
+     234,     6,   236,   234,   234,     6,   158,   232,   237,   156,
+     158,     8,   158,   151,   157,   232,   245,     4,   156,   156,
+     156,   156,   151,   156,   232,   232,   237,   157,   156,   158,
+       6,     6,     6,     7,     6,   154,     6,   232,   187,   158,
+     158,   158,   158,     5,    53,     6,     6,     6,     6,     6,
+     157,   157,     6,     6,   157,   232,   158,   156,   157,   156,
+     157,   156,   157,   153,     6,   237,     7,   157,   232,   156,
+     158,   156,   156,     6,   158,   101,   232,   232,   240,     6,
+       6,   237,   237,   237,   237,   172,   232,   156,   156,   236,
+     232,     6,   241,   104,   156,   188,     6,     6,     6,     6,
+       6,   157,   236,   240,   199,   156,   158,   232,   234,   221,
+     232,   234,   221,   232,   234,   221,     6,   156,   158,   237,
+     200,   158,   234,     6,   240,   234,   232,   158,   158,   158,
+     158,   158,   158,   158,   157,   232,   232,   158,     6,   232,
+     156,   158,   189,   232,   158,   158,   158,   232,   158,   156,
+     158,   158,   156,   158,   158,   156,   158,   237,     6,    70,
+     158,   209,   157,   156,   158,   156,     6,     6,     6,     6,
+       6,     6,   169,   151,   156,     6,   157,   156,     4,   158,
+       6,     6,   158,     6,   215,   232,     6,     6,   216,   232,
+       6,     6,   217,   232,     6,   158,   232,   221,   200,   240,
+       6,   234,   240,   158,   175,   232,   236,   232,     5,   237,
+     157,   158,   157,   158,   157,   158,     6,     6,   158,   158,
+     210,   158,   156,   158,     6,   157,   151,   158,   158,   221,
+       6,   218,   221,     6,   219,   221,     6,   220,   221,     6,
+     240,     6,   173,   244,   178,   157,     6,   158,   157,   158,
+     157,   158,   157,   158,   158,   156,   158,   157,   236,     6,
+     221,     6,   221,     6,   221,     6,   244,     6,   176,   244,
+     158,   158,   158,   158,   156,   158,     6,     6,     6,     6,
+     244,     6
 };
 
 #define yyerrok		(yyerrstatus = 0)
@@ -4113,7 +4115,7 @@ yyreduce:
     {
       char tmpstring[1024];
       int i = PrintListOfDouble((yyvsp[(3) - (7)].c), (yyvsp[(5) - (7)].l), tmpstring);
-      if(i < 0) 
+      if(i < 0)
 	yymsg(0, "Too few arguments in Printf");
       else if(i > 0)
 	yymsg(0, "%d extra argument%s in Printf", i, (i > 1) ? "s" : "");
@@ -4131,7 +4133,7 @@ yyreduce:
     {
       char tmpstring[1024];
       int i = PrintListOfDouble((yyvsp[(3) - (9)].c), (yyvsp[(5) - (9)].l), tmpstring);
-      if(i < 0) 
+      if(i < 0)
 	yymsg(0, "Too few arguments in Printf");
       else if(i > 0)
 	yymsg(0, "%d extra argument%s in Printf", i, (i > 1) ? "s" : "");
@@ -4156,7 +4158,7 @@ yyreduce:
 
 /* Line 1464 of yacc.c  */
 #line 266 "Gmsh.y"
-    { 
+    {
 #if defined(HAVE_POST)
       if(!strcmp((yyvsp[(1) - (6)].c), "View") && ViewData->finalize()){
 	ViewData->setName((yyvsp[(2) - (6)].c));
@@ -4209,7 +4211,7 @@ yyreduce:
 #line 305 "Gmsh.y"
     {
 #if defined(HAVE_POST)
-      ViewData = new PViewDataList(); 
+      ViewData = new PViewDataList();
 #endif
     ;}
     break;
@@ -4342,7 +4344,7 @@ yyreduce:
         if(strlen((yyvsp[(1) - (1)].c)) > 2) ViewData->setOrder2(TYPE_PYR);
       }
       else{
-	yymsg(0, "Unknown element type '%s'", (yyvsp[(1) - (1)].c));	
+	yymsg(0, "Unknown element type '%s'", (yyvsp[(1) - (1)].c));
 	ViewValueList = 0; ViewNumList = 0;
       }
 #endif
@@ -4359,7 +4361,7 @@ yyreduce:
 #if defined(HAVE_POST)
       if(ViewValueList){
 	for(int i = 0; i < 3; i++)
-	  for(unsigned int j = 0; j < ViewCoord.size() / 3; j++) 
+	  for(unsigned int j = 0; j < ViewCoord.size() / 3; j++)
 	    ViewValueList->push_back(ViewCoord[3 * j + i]);
       }
 #endif
@@ -4381,7 +4383,7 @@ yyreduce:
 
 /* Line 1464 of yacc.c  */
 #line 456 "Gmsh.y"
-    { 
+    {
 #if defined(HAVE_POST)
       for(int i = 0; i < (int)strlen((yyvsp[(1) - (1)].c)) + 1; i++) ViewData->T2C.push_back((yyvsp[(1) - (1)].c)[i]);
 #endif
@@ -4393,7 +4395,7 @@ yyreduce:
 
 /* Line 1464 of yacc.c  */
 #line 463 "Gmsh.y"
-    { 
+    {
 #if defined(HAVE_POST)
       for(int i = 0; i < (int)strlen((yyvsp[(3) - (3)].c)) + 1; i++) ViewData->T2C.push_back((yyvsp[(3) - (3)].c)[i]);
 #endif
@@ -4405,12 +4407,12 @@ yyreduce:
 
 /* Line 1464 of yacc.c  */
 #line 473 "Gmsh.y"
-    { 
+    {
 #if defined(HAVE_POST)
-      ViewData->T2D.push_back((yyvsp[(3) - (8)].d)); 
+      ViewData->T2D.push_back((yyvsp[(3) - (8)].d));
       ViewData->T2D.push_back((yyvsp[(5) - (8)].d));
-      ViewData->T2D.push_back((yyvsp[(7) - (8)].d)); 
-      ViewData->T2D.push_back(ViewData->T2C.size()); 
+      ViewData->T2D.push_back((yyvsp[(7) - (8)].d));
+      ViewData->T2D.push_back(ViewData->T2C.size());
 #endif
     ;}
     break;
@@ -4430,7 +4432,7 @@ yyreduce:
 
 /* Line 1464 of yacc.c  */
 #line 491 "Gmsh.y"
-    { 
+    {
 #if defined(HAVE_POST)
       for(int i = 0; i < (int)strlen((yyvsp[(1) - (1)].c)) + 1; i++) ViewData->T3C.push_back((yyvsp[(1) - (1)].c)[i]);
 #endif
@@ -4442,7 +4444,7 @@ yyreduce:
 
 /* Line 1464 of yacc.c  */
 #line 498 "Gmsh.y"
-    { 
+    {
 #if defined(HAVE_POST)
       for(int i = 0; i < (int)strlen((yyvsp[(3) - (3)].c)) + 1; i++) ViewData->T3C.push_back((yyvsp[(3) - (3)].c)[i]);
 #endif
@@ -4454,11 +4456,11 @@ yyreduce:
 
 /* Line 1464 of yacc.c  */
 #line 508 "Gmsh.y"
-    { 
+    {
 #if defined(HAVE_POST)
       ViewData->T3D.push_back((yyvsp[(3) - (10)].d)); ViewData->T3D.push_back((yyvsp[(5) - (10)].d));
       ViewData->T3D.push_back((yyvsp[(7) - (10)].d)); ViewData->T3D.push_back((yyvsp[(9) - (10)].d));
-      ViewData->T3D.push_back(ViewData->T3C.size()); 
+      ViewData->T3D.push_back(ViewData->T3C.size());
 #endif
     ;}
     break;
@@ -4480,16 +4482,16 @@ yyreduce:
 #line 526 "Gmsh.y"
     {
 #if defined(HAVE_POST)
-      int type = 
-	(ViewData->NbSL || ViewData->NbVL) ? TYPE_LIN : 
-	(ViewData->NbST || ViewData->NbVT) ? TYPE_TRI : 
-	(ViewData->NbSQ || ViewData->NbVQ) ? TYPE_QUA : 
-	(ViewData->NbSS || ViewData->NbVS) ? TYPE_TET : 
-	(ViewData->NbSY || ViewData->NbVY) ? TYPE_PYR : 
-	(ViewData->NbSI || ViewData->NbVI) ? TYPE_PRI : 
-      	(ViewData->NbSH || ViewData->NbVH) ? TYPE_HEX : 
+      int type =
+	(ViewData->NbSL || ViewData->NbVL) ? TYPE_LIN :
+	(ViewData->NbST || ViewData->NbVT) ? TYPE_TRI :
+	(ViewData->NbSQ || ViewData->NbVQ) ? TYPE_QUA :
+	(ViewData->NbSS || ViewData->NbVS) ? TYPE_TET :
+	(ViewData->NbSY || ViewData->NbVY) ? TYPE_PYR :
+	(ViewData->NbSI || ViewData->NbVI) ? TYPE_PRI :
+      	(ViewData->NbSH || ViewData->NbVH) ? TYPE_HEX :
 	0;
-      ViewData->setInterpolationMatrices(type, ListOfListOfDouble2Matrix((yyvsp[(3) - (8)].l)), 
+      ViewData->setInterpolationMatrices(type, ListOfListOfDouble2Matrix((yyvsp[(3) - (8)].l)),
                                          ListOfListOfDouble2Matrix((yyvsp[(6) - (8)].l)));
 #endif
     ;}
@@ -4501,16 +4503,16 @@ yyreduce:
 #line 545 "Gmsh.y"
     {
 #if defined(HAVE_POST)
-      int type = 
-	(ViewData->NbSL || ViewData->NbVL) ? TYPE_LIN : 
-	(ViewData->NbST || ViewData->NbVT) ? TYPE_TRI : 
-	(ViewData->NbSQ || ViewData->NbVQ) ? TYPE_QUA : 
-	(ViewData->NbSS || ViewData->NbVS) ? TYPE_TET : 
-      	(ViewData->NbSH || ViewData->NbVH) ? TYPE_HEX : 
+      int type =
+	(ViewData->NbSL || ViewData->NbVL) ? TYPE_LIN :
+	(ViewData->NbST || ViewData->NbVT) ? TYPE_TRI :
+	(ViewData->NbSQ || ViewData->NbVQ) ? TYPE_QUA :
+	(ViewData->NbSS || ViewData->NbVS) ? TYPE_TET :
+      	(ViewData->NbSH || ViewData->NbVH) ? TYPE_HEX :
 	0;
-      ViewData->setInterpolationMatrices(type, ListOfListOfDouble2Matrix((yyvsp[(3) - (14)].l)), 
+      ViewData->setInterpolationMatrices(type, ListOfListOfDouble2Matrix((yyvsp[(3) - (14)].l)),
                                          ListOfListOfDouble2Matrix((yyvsp[(6) - (14)].l)),
-                                         ListOfListOfDouble2Matrix((yyvsp[(9) - (14)].l)), 
+                                         ListOfListOfDouble2Matrix((yyvsp[(9) - (14)].l)),
                                          ListOfListOfDouble2Matrix((yyvsp[(12) - (14)].l)));
 #endif
     ;}
@@ -4589,68 +4591,142 @@ yyreduce:
 /* Line 1464 of yacc.c  */
 #line 595 "Gmsh.y"
     {
-      if(!gmsh_yysymbols.count((yyvsp[(1) - (4)].c))){
-	if(!(yyvsp[(2) - (4)].i))
-	  gmsh_yysymbols[(yyvsp[(1) - (4)].c)].push_back((yyvsp[(3) - (4)].d));
-	else
-	  yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (4)].c));
+      if(!gmsh_yysymbols.count((yyvsp[(1) - (4)].c)) && (yyvsp[(2) - (4)].i) && List_Nbr((yyvsp[(3) - (4)].l)) == 1){
+        yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (4)].c));
       }
       else{
-        if(gmsh_yysymbols[(yyvsp[(1) - (4)].c)].empty()){
-          if((yyvsp[(2) - (4)].i)) yymsg(0, "Uninitialized variable '%s'", (yyvsp[(1) - (4)].c));
-          gmsh_yysymbols[(yyvsp[(1) - (4)].c)].resize(1, 0.);
-        }
-	switch((yyvsp[(2) - (4)].i)){
-	case 0 : gmsh_yysymbols[(yyvsp[(1) - (4)].c)][0] = (yyvsp[(3) - (4)].d); break;
-	case 1 : gmsh_yysymbols[(yyvsp[(1) - (4)].c)][0] += (yyvsp[(3) - (4)].d); break;
-	case 2 : gmsh_yysymbols[(yyvsp[(1) - (4)].c)][0] -= (yyvsp[(3) - (4)].d); break;
-	case 3 : gmsh_yysymbols[(yyvsp[(1) - (4)].c)][0] *= (yyvsp[(3) - (4)].d); break;
-	case 4 : 
-	  if((yyvsp[(3) - (4)].d)) gmsh_yysymbols[(yyvsp[(1) - (4)].c)][0] /= (yyvsp[(3) - (4)].d); 
-	  else yymsg(0, "Division by zero in '%s /= %g'", (yyvsp[(1) - (4)].c), (yyvsp[(3) - (4)].d));
-	  break;
-	}
-      }
+        gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (4)].c)]);
+        if(!(yyvsp[(2) - (4)].i)) s.list = (List_Nbr((yyvsp[(3) - (4)].l)) != 1); // list if 0 or > 1 elements
+        if(!s.list){ // single expression
+          if(List_Nbr((yyvsp[(3) - (4)].l)) != 1){
+            yymsg(0, "Cannot assign list to variable '%s'", (yyvsp[(1) - (4)].c));
+          }
+          else{
+            double d;
+            List_Read((yyvsp[(3) - (4)].l), 0, &d);
+            if(s.value.empty()){
+              if((yyvsp[(2) - (4)].i)) yymsg(1, "Uninitialized variable '%s'", (yyvsp[(1) - (4)].c));
+              s.value.resize(1, 0.);
+            }
+            switch((yyvsp[(2) - (4)].i)){
+            case 0 : s.value[0] = d; break;
+            case 1 : s.value[0] += d; break;
+            case 2 : s.value[0] -= d; break;
+            case 3 : s.value[0] *= d; break;
+            case 4 :
+              if(d) s.value[0] /= d;
+              else yymsg(0, "Division by zero in '%s /= %g'", (yyvsp[(1) - (4)].c), d);
+              break;
+            }
+          }
+        }
+        else{ // list of expressions
+          switch((yyvsp[(2) - (4)].i)){
+          case 0: // affect
+            s.value.clear(); // fall-through
+          case 1: // append
+            for(int i = 0; i < List_Nbr((yyvsp[(3) - (4)].l)); i++){
+              double d;
+              List_Read((yyvsp[(3) - (4)].l), i, &d);
+              s.value.push_back(d);
+            }
+            break;
+          case 2: // remove
+            for(int i = 0; i < List_Nbr((yyvsp[(3) - (4)].l)); i++){
+              double d;
+              List_Read((yyvsp[(3) - (4)].l), i, &d);
+              std::vector<double>::iterator it = std::find(s.value.begin(),
+                                                           s.value.end(), d);
+              if(it != s.value.end()) s.value.erase(it);
+            }
+            break;
+          default:
+            yymsg(0, "Operators *= and /= not available for lists");
+            break;
+          }
+        }
+      }
       Free((yyvsp[(1) - (4)].c));
+      List_Delete((yyvsp[(3) - (4)].l));
     ;}
     break;
 
   case 66:
 
 /* Line 1464 of yacc.c  */
-#line 621 "Gmsh.y"
+#line 658 "Gmsh.y"
+    {
+      gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (6)].c)]);
+      s.list = true;
+      double d;
+      switch((yyvsp[(4) - (6)].i)){
+      case 0: // affect
+        s.value.clear(); // fall-through
+      case 1: // append
+        for(int i = 0; i < List_Nbr((yyvsp[(5) - (6)].l)); i++){
+          List_Read((yyvsp[(5) - (6)].l), i, &d);
+          s.value.push_back(d);
+        }
+        break;
+      case 2: // remove
+        for(int i = 0; i < List_Nbr((yyvsp[(5) - (6)].l)); i++){
+          List_Read((yyvsp[(5) - (6)].l), i, &d);
+          std::vector<double>::iterator it = std::find(s.value.begin(),
+                                                       s.value.end(), d);
+          if(it != s.value.end()) s.value.erase(it);
+        }
+        break;
+      default:
+        yymsg(0, "Operators *= and /= not available for lists");
+        break;
+      }
+      Free((yyvsp[(1) - (6)].c));
+      List_Delete((yyvsp[(5) - (6)].l));
+    ;}
+    break;
+
+  case 67:
+
+/* Line 1464 of yacc.c  */
+#line 688 "Gmsh.y"
     {
       int index = (int)(yyvsp[(3) - (7)].d);
       if(!gmsh_yysymbols.count((yyvsp[(1) - (7)].c))){
 	if(!(yyvsp[(5) - (7)].i)){
-	  gmsh_yysymbols[(yyvsp[(1) - (7)].c)].resize(index + 1, 0.);
-	  gmsh_yysymbols[(yyvsp[(1) - (7)].c)][index] = (yyvsp[(6) - (7)].d);
+          gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (7)].c)]);
+          s.list = true;
+	  s.value.resize(index + 1, 0.);
+	  s.value[index] = (yyvsp[(6) - (7)].d);
 	}
 	else
 	  yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (7)].c));
       }
       else{
-	if((int)gmsh_yysymbols[(yyvsp[(1) - (7)].c)].size() < index + 1)
-	  gmsh_yysymbols[(yyvsp[(1) - (7)].c)].resize(index + 1, 0.);
-	switch((yyvsp[(5) - (7)].i)){
-	case 0 : gmsh_yysymbols[(yyvsp[(1) - (7)].c)][index] = (yyvsp[(6) - (7)].d); break;
-	case 1 : gmsh_yysymbols[(yyvsp[(1) - (7)].c)][index] += (yyvsp[(6) - (7)].d); break;
-	case 2 : gmsh_yysymbols[(yyvsp[(1) - (7)].c)][index] -= (yyvsp[(6) - (7)].d); break;
-	case 3 : gmsh_yysymbols[(yyvsp[(1) - (7)].c)][index] *= (yyvsp[(6) - (7)].d); break;
-	case 4 : 
-	  if((yyvsp[(6) - (7)].d)) gmsh_yysymbols[(yyvsp[(1) - (7)].c)][index] /= (yyvsp[(6) - (7)].d); 
-	  else yymsg(0, "Division by zero in '%s[%d] /= %g'", (yyvsp[(1) - (7)].c), index, (yyvsp[(6) - (7)].d));
-	  break;
-	}
+        gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (7)].c)]);
+        if(s.list){
+          if((int)s.value.size() < index + 1) s.value.resize(index + 1, 0.);
+          switch((yyvsp[(5) - (7)].i)){
+          case 0 : s.value[index] = (yyvsp[(6) - (7)].d); break;
+          case 1 : s.value[index] += (yyvsp[(6) - (7)].d); break;
+          case 2 : s.value[index] -= (yyvsp[(6) - (7)].d); break;
+          case 3 : s.value[index] *= (yyvsp[(6) - (7)].d); break;
+          case 4 :
+            if((yyvsp[(6) - (7)].d)) s.value[index] /= (yyvsp[(6) - (7)].d);
+            else yymsg(0, "Division by zero in '%s[%d] /= %g'", (yyvsp[(1) - (7)].c), index, (yyvsp[(6) - (7)].d));
+            break;
+          }
+        }
+        else
+          yymsg(0, "Variable '%s' is not a list", (yyvsp[(1) - (7)].c));
       }
       Free((yyvsp[(1) - (7)].c));
     ;}
     break;
 
-  case 67:
+  case 68:
 
 /* Line 1464 of yacc.c  */
-#line 648 "Gmsh.y"
+#line 721 "Gmsh.y"
     {
       if(List_Nbr((yyvsp[(4) - (9)].l)) != List_Nbr((yyvsp[(8) - (9)].l))){
 	yymsg(0, "Incompatible array dimensions in affectation");
@@ -4658,33 +4734,39 @@ yyreduce:
       else{
 	if(!gmsh_yysymbols.count((yyvsp[(1) - (9)].c))){
 	  if(!(yyvsp[(7) - (9)].i)){
+            gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (9)].c)]);
+            s.list = true;
 	    for(int i = 0; i < List_Nbr((yyvsp[(4) - (9)].l)); i++){
 	      int index = (int)(*(double*)List_Pointer((yyvsp[(4) - (9)].l), i));
-	      gmsh_yysymbols[(yyvsp[(1) - (9)].c)].resize(index + 1, 0.);
-	      gmsh_yysymbols[(yyvsp[(1) - (9)].c)][index] = *(double*)List_Pointer((yyvsp[(8) - (9)].l), i);
+	      s.value.resize(index + 1, 0.);
+	      s.value[index] = *(double*)List_Pointer((yyvsp[(8) - (9)].l), i);
 	    }
 	  }
 	  else
 	    yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (9)].c));
 	}
 	else{
-	  for(int i = 0; i < List_Nbr((yyvsp[(4) - (9)].l)); i++){
-	    int index = (int)(*(double*)List_Pointer((yyvsp[(4) - (9)].l), i));
-	    double d = *(double*)List_Pointer((yyvsp[(8) - (9)].l), i);
-	    if((int)gmsh_yysymbols[(yyvsp[(1) - (9)].c)].size() < index + 1)
-	      gmsh_yysymbols[(yyvsp[(1) - (9)].c)].resize(index + 1, 0.);
-	    switch((yyvsp[(7) - (9)].i)){
-	    case 0 : gmsh_yysymbols[(yyvsp[(1) - (9)].c)][index] = d; break;
-	    case 1 : gmsh_yysymbols[(yyvsp[(1) - (9)].c)][index] += d; break;
-	    case 2 : gmsh_yysymbols[(yyvsp[(1) - (9)].c)][index] -= d; break;
-	    case 3 : gmsh_yysymbols[(yyvsp[(1) - (9)].c)][index] *= d; break;
-	    case 4 : 
-	      if((yyvsp[(8) - (9)].l)) gmsh_yysymbols[(yyvsp[(1) - (9)].c)][index] /= d; 
-	      else yymsg(0, "Division by zero in '%s[%d] /= %g'", (yyvsp[(1) - (9)].c), index, d);
-	      break;
-	    }
-	  }
-	}
+          gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (9)].c)]);
+          if(s.list){
+            for(int i = 0; i < List_Nbr((yyvsp[(4) - (9)].l)); i++){
+              int index = (int)(*(double*)List_Pointer((yyvsp[(4) - (9)].l), i));
+              double d = *(double*)List_Pointer((yyvsp[(8) - (9)].l), i);
+              if((int)s.value.size() < index + 1) s.value.resize(index + 1, 0.);
+              switch((yyvsp[(7) - (9)].i)){
+              case 0 : s.value[index] = d; break;
+              case 1 : s.value[index] += d; break;
+              case 2 : s.value[index] -= d; break;
+              case 3 : s.value[index] *= d; break;
+              case 4 :
+                if((yyvsp[(8) - (9)].l)) s.value[index] /= d;
+                else yymsg(0, "Division by zero in '%s[%d] /= %g'", (yyvsp[(1) - (9)].c), index, d);
+                break;
+              }
+            }
+          }
+          else
+            yymsg(0, "Variable '%s' is not a list", (yyvsp[(1) - (9)].c));
+        }
       }
       Free((yyvsp[(1) - (9)].c));
       List_Delete((yyvsp[(4) - (9)].l));
@@ -4692,123 +4774,84 @@ yyreduce:
     ;}
     break;
 
-  case 68:
-
-/* Line 1464 of yacc.c  */
-#line 688 "Gmsh.y"
-    {
-      if(gmsh_yysymbols.count((yyvsp[(1) - (6)].c)))
-	gmsh_yysymbols[(yyvsp[(1) - (6)].c)].clear();
-      gmsh_yysymbols[(yyvsp[(1) - (6)].c)] = std::vector<double>();
-      for(int i = 0; i < List_Nbr((yyvsp[(5) - (6)].l)); i++)
-        gmsh_yysymbols[(yyvsp[(1) - (6)].c)].push_back(*(double*)List_Pointer((yyvsp[(5) - (6)].l), i));
-      Free((yyvsp[(1) - (6)].c));
-      List_Delete((yyvsp[(5) - (6)].l));
-    ;}
-    break;
-
   case 69:
 
 /* Line 1464 of yacc.c  */
-#line 698 "Gmsh.y"
-    {
-      // appends to the list
-      for(int i = 0; i < List_Nbr((yyvsp[(5) - (6)].l)); i++)
-	gmsh_yysymbols[(yyvsp[(1) - (6)].c)].push_back(*(double*)List_Pointer((yyvsp[(5) - (6)].l), i));
-      Free((yyvsp[(1) - (6)].c));
-      List_Delete((yyvsp[(5) - (6)].l));
-    ;}
-    break;
-
-  case 70:
-
-/* Line 1464 of yacc.c  */
-#line 706 "Gmsh.y"
-    {
-      // remove from the list
-      for(int i = 0; i < List_Nbr((yyvsp[(5) - (6)].l)); i++){
-        double d = *(double*)List_Pointer((yyvsp[(5) - (6)].l), i);
-        std::vector<double>::iterator it = std::find
-          (gmsh_yysymbols[(yyvsp[(1) - (6)].c)].begin(), gmsh_yysymbols[(yyvsp[(1) - (6)].c)].end(), d);
-        if(it != gmsh_yysymbols[(yyvsp[(1) - (6)].c)].end())
-          gmsh_yysymbols[(yyvsp[(1) - (6)].c)].erase(it);
-      }
-      Free((yyvsp[(1) - (6)].c));
-      List_Delete((yyvsp[(5) - (6)].l));
-    ;}
-    break;
-
-  case 71:
-
-/* Line 1464 of yacc.c  */
-#line 719 "Gmsh.y"
+#line 767 "Gmsh.y"
     {
       if(!gmsh_yysymbols.count((yyvsp[(1) - (3)].c)))
-	yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (3)].c)); 
+	yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (3)].c));
       else{
-        if(gmsh_yysymbols[(yyvsp[(1) - (3)].c)].empty())
+        gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (3)].c)]);
+        if(!s.list && s.value.empty())
           yymsg(0, "Uninitialized variable '%s'", (yyvsp[(1) - (3)].c));
+        else if(!s.list)
+          s.value[0] += (yyvsp[(2) - (3)].i);
         else
-          gmsh_yysymbols[(yyvsp[(1) - (3)].c)][0] += (yyvsp[(2) - (3)].i);
+          yymsg(0, "Variable '%s' is not a single float", (yyvsp[(1) - (3)].c));
       }
       Free((yyvsp[(1) - (3)].c));
     ;}
     break;
 
-  case 72:
+  case 70:
 
 /* Line 1464 of yacc.c  */
-#line 731 "Gmsh.y"
+#line 782 "Gmsh.y"
     {
       if(!gmsh_yysymbols.count((yyvsp[(1) - (6)].c)))
-	yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (6)].c)); 
+	yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (6)].c));
       else{
-	int index = (int)(yyvsp[(3) - (6)].d);
-	if((int)gmsh_yysymbols[(yyvsp[(1) - (6)].c)].size() < index + 1)
-	  gmsh_yysymbols[(yyvsp[(1) - (6)].c)].resize(index + 1, 0.);
-	gmsh_yysymbols[(yyvsp[(1) - (6)].c)][index] += (yyvsp[(5) - (6)].i);
+        gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (6)].c)]);
+        if(s.list){
+          int index = (int)(yyvsp[(3) - (6)].d);
+          if((int)s.value.size() < index + 1) s.value.resize(index + 1, 0.);
+          s.value[index] += (yyvsp[(5) - (6)].i);
+        }
+        else
+          yymsg(0, "Variable '%s' is not a list", (yyvsp[(1) - (6)].c));
       }
       Free((yyvsp[(1) - (6)].c));
     ;}
     break;
 
-  case 73:
+  case 71:
 
 /* Line 1464 of yacc.c  */
-#line 743 "Gmsh.y"
-    { 
+#line 798 "Gmsh.y"
+    {
       gmsh_yystringsymbols[(yyvsp[(1) - (4)].c)] = std::string((yyvsp[(3) - (4)].c));
       Free((yyvsp[(1) - (4)].c));
       Free((yyvsp[(3) - (4)].c));
     ;}
     break;
 
-  case 74:
+  case 72:
 
 /* Line 1464 of yacc.c  */
-#line 752 "Gmsh.y"
-    { 
+#line 807 "Gmsh.y"
+    {
       std::string tmp((yyvsp[(5) - (6)].c));
       StringOption(GMSH_SET|GMSH_GUI, (yyvsp[(1) - (6)].c), 0, (yyvsp[(3) - (6)].c), tmp);
       Free((yyvsp[(1) - (6)].c)); Free((yyvsp[(3) - (6)].c)); Free((yyvsp[(5) - (6)].c))
     ;}
     break;
 
-  case 75:
+  case 73:
 
 /* Line 1464 of yacc.c  */
-#line 758 "Gmsh.y"
-    { 
+#line 813 "Gmsh.y"
+    {
       std::string tmp((yyvsp[(8) - (9)].c));
       StringOption(GMSH_SET|GMSH_GUI, (yyvsp[(1) - (9)].c), (int)(yyvsp[(3) - (9)].d), (yyvsp[(6) - (9)].c), tmp);
       Free((yyvsp[(1) - (9)].c)); Free((yyvsp[(6) - (9)].c)); Free((yyvsp[(8) - (9)].c))
     ;}
     break;
 
-  case 76:
+  case 74:
 
 /* Line 1464 of yacc.c  */
-#line 767 "Gmsh.y"
+#line 822 "Gmsh.y"
     {
       double d = 0.;
       if(NumberOption(GMSH_GET, (yyvsp[(1) - (6)].c), 0, (yyvsp[(3) - (6)].c), d)){
@@ -4817,8 +4860,8 @@ yyreduce:
 	case 1 : d += (yyvsp[(5) - (6)].d); break;
 	case 2 : d -= (yyvsp[(5) - (6)].d); break;
 	case 3 : d *= (yyvsp[(5) - (6)].d); break;
-	case 4 : 
-	  if((yyvsp[(5) - (6)].d)) d /= (yyvsp[(5) - (6)].d); 
+	case 4 :
+	  if((yyvsp[(5) - (6)].d)) d /= (yyvsp[(5) - (6)].d);
 	  else yymsg(0, "Division by zero in '%s.%s /= %g'", (yyvsp[(1) - (6)].c), (yyvsp[(3) - (6)].c), (yyvsp[(5) - (6)].d));
 	  break;
 	}
@@ -4828,10 +4871,10 @@ yyreduce:
     ;}
     break;
 
-  case 77:
+  case 75:
 
 /* Line 1464 of yacc.c  */
-#line 785 "Gmsh.y"
+#line 840 "Gmsh.y"
     {
       double d = 0.;
       if(NumberOption(GMSH_GET, (yyvsp[(1) - (9)].c), (int)(yyvsp[(3) - (9)].d), (yyvsp[(6) - (9)].c), d)){
@@ -4840,8 +4883,8 @@ yyreduce:
 	case 1 : d += (yyvsp[(8) - (9)].d); break;
 	case 2 : d -= (yyvsp[(8) - (9)].d); break;
 	case 3 : d *= (yyvsp[(8) - (9)].d); break;
-	case 4 : 
-	  if((yyvsp[(8) - (9)].d)) d /= (yyvsp[(8) - (9)].d); 
+	case 4 :
+	  if((yyvsp[(8) - (9)].d)) d /= (yyvsp[(8) - (9)].d);
 	  else yymsg(0, "Division by zero in '%s[%d].%s /= %g'", (yyvsp[(1) - (9)].c), (int)(yyvsp[(3) - (9)].d), (yyvsp[(6) - (9)].c), (yyvsp[(8) - (9)].d));
 	  break;
 	}
@@ -4851,10 +4894,10 @@ yyreduce:
     ;}
     break;
 
-  case 78:
+  case 76:
 
 /* Line 1464 of yacc.c  */
-#line 803 "Gmsh.y"
+#line 858 "Gmsh.y"
     {
       double d = 0.;
       if(NumberOption(GMSH_GET, (yyvsp[(1) - (5)].c), 0, (yyvsp[(3) - (5)].c), d)){
@@ -4865,10 +4908,10 @@ yyreduce:
     ;}
     break;
 
-  case 79:
+  case 77:
 
 /* Line 1464 of yacc.c  */
-#line 812 "Gmsh.y"
+#line 867 "Gmsh.y"
     {
       double d = 0.;
       if(NumberOption(GMSH_GET, (yyvsp[(1) - (8)].c), (int)(yyvsp[(3) - (8)].d), (yyvsp[(6) - (8)].c), d)){
@@ -4879,30 +4922,30 @@ yyreduce:
     ;}
     break;
 
-  case 80:
+  case 78:
 
 /* Line 1464 of yacc.c  */
-#line 824 "Gmsh.y"
+#line 879 "Gmsh.y"
     {
       ColorOption(GMSH_SET|GMSH_GUI, (yyvsp[(1) - (8)].c), 0, (yyvsp[(5) - (8)].c), (yyvsp[(7) - (8)].u));
       Free((yyvsp[(1) - (8)].c)); Free((yyvsp[(5) - (8)].c));
     ;}
     break;
 
-  case 81:
+  case 79:
 
 /* Line 1464 of yacc.c  */
-#line 829 "Gmsh.y"
+#line 884 "Gmsh.y"
     {
       ColorOption(GMSH_SET|GMSH_GUI, (yyvsp[(1) - (11)].c), (int)(yyvsp[(3) - (11)].d), (yyvsp[(8) - (11)].c), (yyvsp[(10) - (11)].u));
       Free((yyvsp[(1) - (11)].c)); Free((yyvsp[(8) - (11)].c));
     ;}
     break;
 
-  case 82:
+  case 80:
 
 /* Line 1464 of yacc.c  */
-#line 837 "Gmsh.y"
+#line 892 "Gmsh.y"
     {
       GmshColorTable *ct = GetColorTable(0);
       if(!ct)
@@ -4910,7 +4953,7 @@ yyreduce:
       else{
 	ct->size = List_Nbr((yyvsp[(5) - (6)].l));
 	if(ct->size > COLORTABLE_NBMAX_COLOR)
-	  yymsg(0, "Too many (%d>%d) colors in View[%d].ColorTable", 
+	  yymsg(0, "Too many (%d>%d) colors in View[%d].ColorTable",
 		ct->size, COLORTABLE_NBMAX_COLOR, 0);
 	else
 	  for(int i = 0; i < ct->size; i++) List_Read((yyvsp[(5) - (6)].l), i, &ct->table[i]);
@@ -4924,10 +4967,10 @@ yyreduce:
     ;}
     break;
 
-  case 83:
+  case 81:
 
 /* Line 1464 of yacc.c  */
-#line 857 "Gmsh.y"
+#line 912 "Gmsh.y"
     {
       GmshColorTable *ct = GetColorTable((int)(yyvsp[(3) - (9)].d));
       if(!ct)
@@ -4935,7 +4978,7 @@ yyreduce:
       else{
 	ct->size = List_Nbr((yyvsp[(8) - (9)].l));
 	if(ct->size > COLORTABLE_NBMAX_COLOR)
-	  yymsg(0, "Too many (%d>%d) colors in View[%d].ColorTable", 
+	  yymsg(0, "Too many (%d>%d) colors in View[%d].ColorTable",
 		   ct->size, COLORTABLE_NBMAX_COLOR, (int)(yyvsp[(3) - (9)].d));
 	else
 	  for(int i = 0; i < ct->size; i++) List_Read((yyvsp[(8) - (9)].l), i, &ct->table[i]);
@@ -4949,10 +4992,10 @@ yyreduce:
     ;}
     break;
 
-  case 84:
+  case 82:
 
 /* Line 1464 of yacc.c  */
-#line 880 "Gmsh.y"
+#line 935 "Gmsh.y"
     {
 #if defined(HAVE_MESH)
       if(!strcmp((yyvsp[(1) - (5)].c),"Background"))
@@ -4965,10 +5008,10 @@ yyreduce:
     ;}
     break;
 
-  case 85:
+  case 83:
 
 /* Line 1464 of yacc.c  */
-#line 891 "Gmsh.y"
+#line 946 "Gmsh.y"
     {
 #if defined(HAVE_MESH)
       if(!GModel::current()->getFields()->newField((int)(yyvsp[(3) - (7)].d), (yyvsp[(6) - (7)].c)))
@@ -4978,10 +5021,10 @@ yyreduce:
     ;}
     break;
 
-  case 86:
+  case 84:
 
 /* Line 1464 of yacc.c  */
-#line 899 "Gmsh.y"
+#line 954 "Gmsh.y"
     {
 #if defined(HAVE_MESH)
       Field *field = GModel::current()->getFields()->get((int)(yyvsp[(3) - (9)].d));
@@ -5005,10 +5048,10 @@ yyreduce:
     ;}
     break;
 
-  case 87:
+  case 85:
 
 /* Line 1464 of yacc.c  */
-#line 921 "Gmsh.y"
+#line 976 "Gmsh.y"
     {
 #if defined(HAVE_MESH)
       Field *field = GModel::current()->getFields()->get((int)(yyvsp[(3) - (9)].d));
@@ -5021,11 +5064,11 @@ yyreduce:
 		  "in field %i of type '%s'", (yyvsp[(6) - (9)].c), (int)(yyvsp[(3) - (9)].d), field->getName());
 	  }
 	}
-	else 
-	  yymsg(0, "Unknown option '%s' in field %i of type '%s'", 
+	else
+	  yymsg(0, "Unknown option '%s' in field %i of type '%s'",
 		(yyvsp[(6) - (9)].c), (int)(yyvsp[(3) - (9)].d), field->getName());
       }
-      else 
+      else
 	yymsg(0, "No field with id %i", (int)(yyvsp[(3) - (9)].d));
 #endif
       Free((yyvsp[(6) - (9)].c));
@@ -5033,10 +5076,10 @@ yyreduce:
     ;}
     break;
 
-  case 88:
+  case 86:
 
 /* Line 1464 of yacc.c  */
-#line 944 "Gmsh.y"
+#line 999 "Gmsh.y"
     {
 #if defined(HAVE_MESH)
       Field *field = GModel::current()->getFields()->get((int)(yyvsp[(3) - (11)].d));
@@ -5055,7 +5098,7 @@ yyreduce:
 	  yymsg(0, "Unknown option '%s' in field %i of type '%s'",
 		(yyvsp[(6) - (11)].c), (int)(yyvsp[(3) - (11)].d), field->getName());
       }
-      else 
+      else
 	yymsg(0, "No field with id %i", (int)(yyvsp[(3) - (11)].d));
 #endif
       Free((yyvsp[(6) - (11)].c));
@@ -5063,14 +5106,14 @@ yyreduce:
     ;}
     break;
 
-  case 89:
+  case 87:
 
 /* Line 1464 of yacc.c  */
-#line 972 "Gmsh.y"
+#line 1027 "Gmsh.y"
     {
 #if defined(HAVE_PLUGINS)
       try {
-	PluginManager::instance()->setPluginOption((yyvsp[(3) - (9)].c), (yyvsp[(6) - (9)].c), (yyvsp[(8) - (9)].d)); 
+	PluginManager::instance()->setPluginOption((yyvsp[(3) - (9)].c), (yyvsp[(6) - (9)].c), (yyvsp[(8) - (9)].d));
       }
       catch (...) {
 	yymsg(0, "Unknown option '%s' or plugin '%s'", (yyvsp[(6) - (9)].c), (yyvsp[(3) - (9)].c));
@@ -5080,14 +5123,14 @@ yyreduce:
     ;}
     break;
 
-  case 90:
+  case 88:
 
 /* Line 1464 of yacc.c  */
-#line 984 "Gmsh.y"
+#line 1039 "Gmsh.y"
     {
 #if defined(HAVE_PLUGINS)
       try {
-	PluginManager::instance()->setPluginOption((yyvsp[(3) - (9)].c), (yyvsp[(6) - (9)].c), (yyvsp[(8) - (9)].c)); 
+	PluginManager::instance()->setPluginOption((yyvsp[(3) - (9)].c), (yyvsp[(6) - (9)].c), (yyvsp[(8) - (9)].c));
       }
       catch (...) {
 	yymsg(0, "Unknown option '%s' or plugin '%s'", (yyvsp[(6) - (9)].c), (yyvsp[(3) - (9)].c));
@@ -5097,67 +5140,67 @@ yyreduce:
     ;}
     break;
 
-  case 94:
+  case 92:
 
 /* Line 1464 of yacc.c  */
-#line 1002 "Gmsh.y"
+#line 1057 "Gmsh.y"
     {
       std::string key((yyvsp[(3) - (3)].c));
       std::vector<double> val(1, 0.);
       floatOptions.clear(); charOptions.clear();
       if(!gmsh_yysymbols.count(key)){
         Msg::ExchangeOnelabParameter(key, val, floatOptions, charOptions);
-        gmsh_yysymbols[key] = val;
+        gmsh_yysymbols[key].value = val;
       }
       Free((yyvsp[(3) - (3)].c));
     ;}
     break;
 
-  case 95:
+  case 93:
 
 /* Line 1464 of yacc.c  */
-#line 1013 "Gmsh.y"
+#line 1068 "Gmsh.y"
     {
       std::string key((yyvsp[(3) - (5)].c));
       std::vector<double> val(1, (yyvsp[(5) - (5)].d));
       floatOptions.clear(); charOptions.clear();
       if(!gmsh_yysymbols.count(key)){
         Msg::ExchangeOnelabParameter(key, val, floatOptions, charOptions);
-        gmsh_yysymbols[key] = val;
+        gmsh_yysymbols[key].value = val;
       }
       Free((yyvsp[(3) - (5)].c));
     ;}
     break;
 
-  case 96:
+  case 94:
 
 /* Line 1464 of yacc.c  */
-#line 1024 "Gmsh.y"
+#line 1079 "Gmsh.y"
     { floatOptions.clear(); charOptions.clear(); ;}
     break;
 
-  case 97:
+  case 95:
 
 /* Line 1464 of yacc.c  */
-#line 1026 "Gmsh.y"
-    { 
+#line 1081 "Gmsh.y"
+    {
       std::string key((yyvsp[(3) - (9)].c));
       std::vector<double> val(1, (yyvsp[(6) - (9)].d));
       if(!gmsh_yysymbols.count(key)){
         Msg::ExchangeOnelabParameter(key, val, floatOptions, charOptions);
-        gmsh_yysymbols[key] = val;
+        gmsh_yysymbols[key].value = val;
       }
     ;}
     break;
 
-  case 100:
+  case 98:
 
 /* Line 1464 of yacc.c  */
-#line 1042 "Gmsh.y"
+#line 1097 "Gmsh.y"
     {
       std::string key((yyvsp[(2) - (3)].c));
       for(int i = 0; i < List_Nbr((yyvsp[(3) - (3)].l)); i++){
-        double v; 
+        double v;
         List_Read((yyvsp[(3) - (3)].l), i, &v);
         floatOptions[key].push_back(v);
       }
@@ -5166,10 +5209,10 @@ yyreduce:
     ;}
     break;
 
-  case 101:
+  case 99:
 
 /* Line 1464 of yacc.c  */
-#line 1053 "Gmsh.y"
+#line 1108 "Gmsh.y"
     {
       std::string key((yyvsp[(2) - (3)].c));
       std::string val((yyvsp[(3) - (3)].c));
@@ -5179,40 +5222,40 @@ yyreduce:
     ;}
     break;
 
-  case 102:
+  case 100:
 
 /* Line 1464 of yacc.c  */
-#line 1066 "Gmsh.y"
-    { 
-      (yyval.i) = (int)(yyvsp[(1) - (1)].d); 
+#line 1121 "Gmsh.y"
+    {
+      (yyval.i) = (int)(yyvsp[(1) - (1)].d);
     ;}
     break;
 
-  case 103:
+  case 101:
 
 /* Line 1464 of yacc.c  */
-#line 1070 "Gmsh.y"
-    { 
+#line 1125 "Gmsh.y"
+    {
       (yyval.i) = GModel::current()->setPhysicalName
-        (std::string((yyvsp[(1) - (1)].c)), curPhysDim, 
+        (std::string((yyvsp[(1) - (1)].c)), curPhysDim,
          ++GModel::current()->getGEOInternals()->MaxPhysicalNum);
       Free((yyvsp[(1) - (1)].c));
     ;}
     break;
 
-  case 104:
+  case 102:
 
 /* Line 1464 of yacc.c  */
-#line 1080 "Gmsh.y"
+#line 1135 "Gmsh.y"
     {
       (yyval.l) = 0;
     ;}
     break;
 
-  case 105:
+  case 103:
 
 /* Line 1464 of yacc.c  */
-#line 1084 "Gmsh.y"
+#line 1139 "Gmsh.y"
     {
       (yyval.l) = List_Create(1, 1, sizeof(Vertex*));
       Vertex *v = FindPoint((int)(yyvsp[(4) - (5)].d));
@@ -5224,28 +5267,28 @@ yyreduce:
     ;}
     break;
 
-  case 106:
+  case 104:
 
 /* Line 1464 of yacc.c  */
-#line 1096 "Gmsh.y"
+#line 1151 "Gmsh.y"
     {
       for(int i = 0; i < 4; i++) (yyval.v)[i] = 0.;
     ;}
     break;
 
-  case 107:
+  case 105:
 
 /* Line 1464 of yacc.c  */
-#line 1100 "Gmsh.y"
+#line 1155 "Gmsh.y"
     {
       for(int i = 0; i < 4; i++) (yyval.v)[i] = (yyvsp[(2) - (2)].v)[i];
     ;}
     break;
 
-  case 108:
+  case 106:
 
 /* Line 1464 of yacc.c  */
-#line 1110 "Gmsh.y"
+#line 1165 "Gmsh.y"
     {
       int num = (int)(yyvsp[(3) - (7)].d);
       if(FindPoint(num)){
@@ -5270,19 +5313,19 @@ yyreduce:
     ;}
     break;
 
-  case 109:
+  case 107:
 
 /* Line 1464 of yacc.c  */
-#line 1133 "Gmsh.y"
+#line 1188 "Gmsh.y"
     {
       curPhysDim = 0;
     ;}
     break;
 
-  case 110:
+  case 108:
 
 /* Line 1464 of yacc.c  */
-#line 1137 "Gmsh.y"
+#line 1192 "Gmsh.y"
     {
       int num = (int)(yyvsp[(5) - (9)].i);
       if(FindPhysicalGroup(num, MSH_PHYSICAL_POINT)){
@@ -5300,20 +5343,20 @@ yyreduce:
     ;}
     break;
 
-  case 111:
+  case 109:
 
 /* Line 1464 of yacc.c  */
-#line 1153 "Gmsh.y"
-    {      
+#line 1208 "Gmsh.y"
+    {
       for(int i = 0; i < List_Nbr((yyvsp[(3) - (6)].l)); i++){
 	double d;
 	List_Read((yyvsp[(3) - (6)].l), i, &d);
-	Vertex *v = FindPoint((int)d); 	 
+	Vertex *v = FindPoint((int)d);
 	if(v)
 	  v->lc = (yyvsp[(5) - (6)].d);
 	else{
 	  GVertex *gv = GModel::current()->getVertexByTag((int)d);
-	  if(gv) 
+	  if(gv)
 	    gv->setPrescribedMeshSizeAtVertex((yyvsp[(5) - (6)].d));
 	}
       }
@@ -5324,10 +5367,10 @@ yyreduce:
     ;}
     break;
 
-  case 112:
+  case 110:
 
 /* Line 1464 of yacc.c  */
-#line 1175 "Gmsh.y"
+#line 1230 "Gmsh.y"
     {
       int num = (int)(yyvsp[(3) - (7)].d);
       if(FindCurve(num)){
@@ -5347,10 +5390,10 @@ yyreduce:
     ;}
     break;
 
-  case 113:
+  case 111:
 
 /* Line 1464 of yacc.c  */
-#line 1193 "Gmsh.y"
+#line 1248 "Gmsh.y"
     {
       for (int i = 0; i < List_Nbr((yyvsp[(3) - (4)].l)); i++){
 	double dnum;
@@ -5373,10 +5416,10 @@ yyreduce:
     ;}
     break;
 
-  case 114:
+  case 112:
 
 /* Line 1464 of yacc.c  */
-#line 1214 "Gmsh.y"
+#line 1269 "Gmsh.y"
     {
       int num = (int)(yyvsp[(3) - (7)].d);
       if(FindCurve(num)){
@@ -5396,10 +5439,10 @@ yyreduce:
     ;}
     break;
 
-  case 115:
+  case 113:
 
 /* Line 1464 of yacc.c  */
-#line 1232 "Gmsh.y"
+#line 1287 "Gmsh.y"
     {
       int num = (int)(yyvsp[(3) - (8)].d);
       if(FindCurve(num)){
@@ -5431,10 +5474,10 @@ yyreduce:
     ;}
     break;
 
-  case 116:
+  case 114:
 
 /* Line 1464 of yacc.c  */
-#line 1262 "Gmsh.y"
+#line 1317 "Gmsh.y"
     {
       int num = (int)(yyvsp[(3) - (8)].d);
       if(FindCurve(num)){
@@ -5466,10 +5509,10 @@ yyreduce:
     ;}
     break;
 
-  case 117:
+  case 115:
 
 /* Line 1464 of yacc.c  */
-#line 1292 "Gmsh.y"
+#line 1347 "Gmsh.y"
     {
       int num = (int)(yyvsp[(3) - (7)].d);
       if(FindCurve(num)){
@@ -5489,10 +5532,10 @@ yyreduce:
     ;}
     break;
 
-  case 118:
+  case 116:
 
 /* Line 1464 of yacc.c  */
-#line 1310 "Gmsh.y"
+#line 1365 "Gmsh.y"
     {
       int num = (int)(yyvsp[(3) - (7)].d);
       if(FindCurve(num)){
@@ -5512,10 +5555,10 @@ yyreduce:
     ;}
     break;
 
-  case 119:
+  case 117:
 
 /* Line 1464 of yacc.c  */
-#line 1328 "Gmsh.y"
+#line 1383 "Gmsh.y"
     {
       int num = (int)(yyvsp[(3) - (11)].d);
       if(List_Nbr((yyvsp[(6) - (11)].l)) + (int)(yyvsp[(10) - (11)].d) + 1 != List_Nbr((yyvsp[(8) - (11)].l))){
@@ -5543,10 +5586,10 @@ yyreduce:
     ;}
     break;
 
-  case 120:
+  case 118:
 
 /* Line 1464 of yacc.c  */
-#line 1354 "Gmsh.y"
+#line 1409 "Gmsh.y"
     {
       int num = (int)(yyvsp[(4) - (8)].d);
       if(FindEdgeLoop(num)){
@@ -5566,10 +5609,10 @@ yyreduce:
     ;}
     break;
 
-  case 121:
+  case 119:
 
 /* Line 1464 of yacc.c  */
-#line 1372 "Gmsh.y"
+#line 1427 "Gmsh.y"
     {
       int num = (int)(yyvsp[(4) - (8)].d);
       if(FindCurve(num)){
@@ -5589,19 +5632,19 @@ yyreduce:
     ;}
     break;
 
-  case 122:
+  case 120:
 
 /* Line 1464 of yacc.c  */
-#line 1390 "Gmsh.y"
+#line 1445 "Gmsh.y"
     {
       curPhysDim = 1;
     ;}
     break;
 
-  case 123:
+  case 121:
 
 /* Line 1464 of yacc.c  */
-#line 1394 "Gmsh.y"
+#line 1449 "Gmsh.y"
     {
       int num = (int)(yyvsp[(5) - (9)].i);
       if(FindPhysicalGroup(num, MSH_PHYSICAL_LINE)){
@@ -5619,10 +5662,10 @@ yyreduce:
     ;}
     break;
 
-  case 124:
+  case 122:
 
 /* Line 1464 of yacc.c  */
-#line 1413 "Gmsh.y"
+#line 1468 "Gmsh.y"
     {
       int num = (int)(yyvsp[(4) - (8)].d);
       if(FindSurface(num)){
@@ -5642,10 +5685,10 @@ yyreduce:
     ;}
     break;
 
-  case 125:
+  case 123:
 
 /* Line 1464 of yacc.c  */
-#line 1431 "Gmsh.y"
+#line 1486 "Gmsh.y"
     {
       int num = (int)(yyvsp[(4) - (9)].d), type = 0;
       if(FindSurface(num)){
@@ -5686,10 +5729,10 @@ yyreduce:
     ;}
     break;
 
-  case 126:
+  case 124:
 
 /* Line 1464 of yacc.c  */
-#line 1470 "Gmsh.y"
+#line 1525 "Gmsh.y"
     {
       myGmshSurface = 0;
       (yyval.s).Type = 0;
@@ -5697,10 +5740,10 @@ yyreduce:
     ;}
     break;
 
-  case 127:
+  case 125:
 
 /* Line 1464 of yacc.c  */
-#line 1476 "Gmsh.y"
+#line 1531 "Gmsh.y"
     {
       myGmshSurface = gmshSurface::getSurface((int)(yyvsp[(3) - (4)].d));
       (yyval.s).Type = 0;
@@ -5708,10 +5751,10 @@ yyreduce:
     ;}
     break;
 
-  case 128:
+  case 126:
 
 /* Line 1464 of yacc.c  */
-#line 1482 "Gmsh.y"
+#line 1537 "Gmsh.y"
     {
       int num = (int)(yyvsp[(4) - (10)].d);
       myGmshSurface = gmshParametricSurface::NewParametricSurface(num, (yyvsp[(7) - (10)].c), (yyvsp[(8) - (10)].c), (yyvsp[(9) - (10)].c));
@@ -5720,10 +5763,10 @@ yyreduce:
     ;}
     break;
 
-  case 129:
+  case 127:
 
 /* Line 1464 of yacc.c  */
-#line 1489 "Gmsh.y"
+#line 1544 "Gmsh.y"
     {
       int num = (int)(yyvsp[(3) - (7)].d);
       if (List_Nbr((yyvsp[(6) - (7)].l)) != 2){
@@ -5750,10 +5793,10 @@ yyreduce:
     ;}
     break;
 
-  case 130:
+  case 128:
 
 /* Line 1464 of yacc.c  */
-#line 1514 "Gmsh.y"
+#line 1569 "Gmsh.y"
     {
       int num = (int)(yyvsp[(3) - (7)].d);
       if (List_Nbr((yyvsp[(6) - (7)].l)) != 2){
@@ -5780,10 +5823,10 @@ yyreduce:
     ;}
     break;
 
-  case 131:
+  case 129:
 
 /* Line 1464 of yacc.c  */
-#line 1539 "Gmsh.y"
+#line 1594 "Gmsh.y"
     {
       int num = (int)(yyvsp[(4) - (8)].d);
       if(FindSurfaceLoop(num)){
@@ -5802,10 +5845,10 @@ yyreduce:
     ;}
     break;
 
-  case 132:
+  case 130:
 
 /* Line 1464 of yacc.c  */
-#line 1556 "Gmsh.y"
+#line 1611 "Gmsh.y"
     {
       int num = (int)(yyvsp[(4) - (8)].d);
       if(FindSurface(num)){
@@ -5824,10 +5867,10 @@ yyreduce:
     ;}
     break;
 
-  case 133:
+  case 131:
 
 /* Line 1464 of yacc.c  */
-#line 1574 "Gmsh.y"
+#line 1629 "Gmsh.y"
     {
       int num = (int)(yyvsp[(4) - (12)].d);
       if(FindSurface(num)){
@@ -5859,19 +5902,19 @@ yyreduce:
     ;}
     break;
 
-  case 134:
+  case 132:
 
 /* Line 1464 of yacc.c  */
-#line 1604 "Gmsh.y"
+#line 1659 "Gmsh.y"
     {
       curPhysDim = 2;
     ;}
     break;
 
-  case 135:
+  case 133:
 
 /* Line 1464 of yacc.c  */
-#line 1608 "Gmsh.y"
+#line 1663 "Gmsh.y"
     {
       int num = (int)(yyvsp[(5) - (9)].i);
       if(FindPhysicalGroup(num, MSH_PHYSICAL_SURFACE)){
@@ -5889,10 +5932,10 @@ yyreduce:
     ;}
     break;
 
-  case 136:
+  case 134:
 
 /* Line 1464 of yacc.c  */
-#line 1628 "Gmsh.y"
+#line 1683 "Gmsh.y"
     {
       yymsg(0, "'Complex Volume' command is deprecated: use 'Volume' instead");
       int num = (int)(yyvsp[(4) - (8)].d);
@@ -5912,10 +5955,10 @@ yyreduce:
     ;}
     break;
 
-  case 137:
+  case 135:
 
 /* Line 1464 of yacc.c  */
-#line 1646 "Gmsh.y"
+#line 1701 "Gmsh.y"
     {
       int num = (int)(yyvsp[(3) - (7)].d);
       if(FindVolume(num)){
@@ -5934,10 +5977,10 @@ yyreduce:
     ;}
     break;
 
-  case 138:
+  case 136:
 
 /* Line 1464 of yacc.c  */
-#line 1663 "Gmsh.y"
+#line 1718 "Gmsh.y"
     {
       int num = (int)(yyvsp[(4) - (8)].d);
       if(FindVolume(num)){
@@ -5955,19 +5998,19 @@ yyreduce:
     ;}
     break;
 
-  case 139:
+  case 137:
 
 /* Line 1464 of yacc.c  */
-#line 1679 "Gmsh.y"
+#line 1734 "Gmsh.y"
     {
       curPhysDim = 3;
     ;}
     break;
 
-  case 140:
+  case 138:
 
 /* Line 1464 of yacc.c  */
-#line 1683 "Gmsh.y"
+#line 1738 "Gmsh.y"
     {
       int num = (int)(yyvsp[(5) - (9)].i);
       if(FindPhysicalGroup(num, MSH_PHYSICAL_VOLUME)){
@@ -5985,50 +6028,50 @@ yyreduce:
     ;}
     break;
 
-  case 141:
+  case 139:
 
 /* Line 1464 of yacc.c  */
-#line 1705 "Gmsh.y"
+#line 1760 "Gmsh.y"
     {
       TranslateShapes((yyvsp[(2) - (5)].v)[0], (yyvsp[(2) - (5)].v)[1], (yyvsp[(2) - (5)].v)[2], (yyvsp[(4) - (5)].l));
       (yyval.l) = (yyvsp[(4) - (5)].l);
     ;}
     break;
 
-  case 142:
+  case 140:
 
 /* Line 1464 of yacc.c  */
-#line 1710 "Gmsh.y"
+#line 1765 "Gmsh.y"
     {
       RotateShapes((yyvsp[(3) - (11)].v)[0], (yyvsp[(3) - (11)].v)[1], (yyvsp[(3) - (11)].v)[2], (yyvsp[(5) - (11)].v)[0], (yyvsp[(5) - (11)].v)[1], (yyvsp[(5) - (11)].v)[2], (yyvsp[(7) - (11)].d), (yyvsp[(10) - (11)].l));
       (yyval.l) = (yyvsp[(10) - (11)].l);
     ;}
     break;
 
-  case 143:
+  case 141:
 
 /* Line 1464 of yacc.c  */
-#line 1715 "Gmsh.y"
+#line 1770 "Gmsh.y"
     {
       SymmetryShapes((yyvsp[(2) - (5)].v)[0], (yyvsp[(2) - (5)].v)[1], (yyvsp[(2) - (5)].v)[2], (yyvsp[(2) - (5)].v)[3], (yyvsp[(4) - (5)].l));
       (yyval.l) = (yyvsp[(4) - (5)].l);
     ;}
     break;
 
-  case 144:
+  case 142:
 
 /* Line 1464 of yacc.c  */
-#line 1720 "Gmsh.y"
+#line 1775 "Gmsh.y"
     {
       DilatShapes((yyvsp[(3) - (9)].v)[0], (yyvsp[(3) - (9)].v)[1], (yyvsp[(3) - (9)].v)[2], (yyvsp[(5) - (9)].d), (yyvsp[(8) - (9)].l));
       (yyval.l) = (yyvsp[(8) - (9)].l);
     ;}
     break;
 
-  case 145:
+  case 143:
 
 /* Line 1464 of yacc.c  */
-#line 1725 "Gmsh.y"
+#line 1780 "Gmsh.y"
     {
       (yyval.l) = List_Create(3, 3, sizeof(Shape));
       if(!strcmp((yyvsp[(1) - (4)].c), "Duplicata")){
@@ -6053,21 +6096,21 @@ yyreduce:
     ;}
     break;
 
-  case 146:
+  case 144:
 
 /* Line 1464 of yacc.c  */
-#line 1748 "Gmsh.y"
-    { 
+#line 1803 "Gmsh.y"
+    {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
       IntersectCurvesWithSurface((yyvsp[(4) - (9)].l), (int)(yyvsp[(8) - (9)].d), (yyval.l));
       List_Delete((yyvsp[(4) - (9)].l));
     ;}
     break;
 
-  case 147:
+  case 145:
 
 /* Line 1464 of yacc.c  */
-#line 1754 "Gmsh.y"
+#line 1809 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape*));
       List_T *tmp = ListOfDouble2ListOfInt((yyvsp[(7) - (9)].l));
@@ -6077,42 +6120,42 @@ yyreduce:
     ;}
     break;
 
-  case 148:
+  case 146:
 
 /* Line 1464 of yacc.c  */
-#line 1764 "Gmsh.y"
+#line 1819 "Gmsh.y"
     { (yyval.l) = (yyvsp[(1) - (1)].l); ;}
     break;
 
-  case 149:
+  case 147:
 
 /* Line 1464 of yacc.c  */
-#line 1765 "Gmsh.y"
+#line 1820 "Gmsh.y"
     { (yyval.l) = (yyvsp[(1) - (1)].l); ;}
     break;
 
-  case 150:
+  case 148:
 
 /* Line 1464 of yacc.c  */
-#line 1770 "Gmsh.y"
+#line 1825 "Gmsh.y"
     {
       (yyval.l) = List_Create(3, 3, sizeof(Shape));
     ;}
     break;
 
-  case 151:
+  case 149:
 
 /* Line 1464 of yacc.c  */
-#line 1774 "Gmsh.y"
+#line 1829 "Gmsh.y"
     {
       List_Add((yyval.l), &(yyvsp[(2) - (2)].s));
     ;}
     break;
 
-  case 152:
+  case 150:
 
 /* Line 1464 of yacc.c  */
-#line 1778 "Gmsh.y"
+#line 1833 "Gmsh.y"
     {
       for(int i = 0; i < List_Nbr((yyvsp[(4) - (6)].l)); i++){
 	double d;
@@ -6137,10 +6180,10 @@ yyreduce:
     ;}
     break;
 
-  case 153:
+  case 151:
 
 /* Line 1464 of yacc.c  */
-#line 1801 "Gmsh.y"
+#line 1856 "Gmsh.y"
     {
       for(int i = 0; i < List_Nbr((yyvsp[(4) - (6)].l)); i++){
 	double d;
@@ -6165,10 +6208,10 @@ yyreduce:
     ;}
     break;
 
-  case 154:
+  case 152:
 
 /* Line 1464 of yacc.c  */
-#line 1824 "Gmsh.y"
+#line 1879 "Gmsh.y"
     {
       for(int i = 0; i < List_Nbr((yyvsp[(4) - (6)].l)); i++){
 	double d;
@@ -6193,10 +6236,10 @@ yyreduce:
     ;}
     break;
 
-  case 155:
+  case 153:
 
 /* Line 1464 of yacc.c  */
-#line 1847 "Gmsh.y"
+#line 1902 "Gmsh.y"
     {
       for(int i = 0; i < List_Nbr((yyvsp[(4) - (6)].l)); i++){
 	double d;
@@ -6221,10 +6264,10 @@ yyreduce:
     ;}
     break;
 
-  case 156:
+  case 154:
 
 /* Line 1464 of yacc.c  */
-#line 1875 "Gmsh.y"
+#line 1930 "Gmsh.y"
     {
 #if defined(HAVE_DINTEGRATION)
       if(List_Nbr((yyvsp[(7) - (8)].l)) == 4){
@@ -6247,10 +6290,10 @@ yyreduce:
     ;}
     break;
 
-  case 157:
+  case 155:
 
 /* Line 1464 of yacc.c  */
-#line 1896 "Gmsh.y"
+#line 1951 "Gmsh.y"
     {
 #if defined(HAVE_DINTEGRATION)
       int t = (int)(yyvsp[(4) - (10)].d);
@@ -6275,10 +6318,10 @@ yyreduce:
     ;}
     break;
 
-  case 158:
+  case 156:
 
 /* Line 1464 of yacc.c  */
-#line 1920 "Gmsh.y"
+#line 1975 "Gmsh.y"
     {
 #if defined(HAVE_DINTEGRATION)
       if(List_Nbr((yyvsp[(12) - (14)].l)) == 0){
@@ -6300,10 +6343,10 @@ yyreduce:
     ;}
     break;
 
-  case 159:
+  case 157:
 
 /* Line 1464 of yacc.c  */
-#line 1941 "Gmsh.y"
+#line 1996 "Gmsh.y"
     {
 #if defined(HAVE_DINTEGRATION)
       if(List_Nbr((yyvsp[(14) - (16)].l)) == 0){
@@ -6326,10 +6369,10 @@ yyreduce:
     ;}
     break;
 
-  case 160:
+  case 158:
 
 /* Line 1464 of yacc.c  */
-#line 1962 "Gmsh.y"
+#line 2017 "Gmsh.y"
     {
 #if defined(HAVE_DINTEGRATION)
       if(List_Nbr((yyvsp[(10) - (12)].l)) == 1){
@@ -6351,10 +6394,10 @@ yyreduce:
     ;}
     break;
 
-  case 161:
+  case 159:
 
 /* Line 1464 of yacc.c  */
-#line 1982 "Gmsh.y"
+#line 2037 "Gmsh.y"
     {
 #if defined(HAVE_DINTEGRATION)
       if(!strcmp((yyvsp[(2) - (8)].c), "Union")){
@@ -6468,10 +6511,10 @@ yyreduce:
     ;}
     break;
 
-  case 162:
+  case 160:
 
 /* Line 1464 of yacc.c  */
-#line 2094 "Gmsh.y"
+#line 2149 "Gmsh.y"
     {
 #if defined(HAVE_DINTEGRATION)
       if(!strcmp((yyvsp[(2) - (8)].c), "MathEval")){
@@ -6492,10 +6535,10 @@ yyreduce:
     ;}
     break;
 
-  case 163:
+  case 161:
 
 /* Line 1464 of yacc.c  */
-#line 2113 "Gmsh.y"
+#line 2168 "Gmsh.y"
     {
 #if defined(HAVE_DINTEGRATION)
       if(!strcmp((yyvsp[(2) - (6)].c), "CutMesh")){
@@ -6535,10 +6578,10 @@ yyreduce:
     ;}
     break;
 
-  case 164:
+  case 162:
 
 /* Line 1464 of yacc.c  */
-#line 2152 "Gmsh.y"
+#line 2207 "Gmsh.y"
     {
 #if defined(HAVE_DINTEGRATION)
       if(!strcmp((yyvsp[(2) - (14)].c), "Cylinder") && List_Nbr((yyvsp[(12) - (14)].l)) == 1){
@@ -6630,7 +6673,7 @@ yyreduce:
             List_Read((yyvsp[(12) - (14)].l), i, &d[i]);
           double pt[3] = {(yyvsp[(8) - (14)].v)[0], (yyvsp[(8) - (14)].v)[1], (yyvsp[(8) - (14)].v)[2]};
           double dir[3] = {(yyvsp[(10) - (14)].v)[0], (yyvsp[(10) - (14)].v)[1], (yyvsp[(10) - (14)].v)[2]};
-          gLevelset *ls = new gLevelsetGeneralQuadric(pt, dir, d[0], d[1], 
+          gLevelset *ls = new gLevelsetGeneralQuadric(pt, dir, d[0], d[1],
                                                       d[2], d[3], d[4], t);
           LevelSet *l = Create_LevelSet(ls->getTag(), ls);
           Tree_Add(GModel::current()->getGEOInternals()->LevelSets, &l);
@@ -6643,10 +6686,10 @@ yyreduce:
     ;}
     break;
 
-  case 165:
+  case 163:
 
 /* Line 1464 of yacc.c  */
-#line 2260 "Gmsh.y"
+#line 2315 "Gmsh.y"
     {
       for(int i = 0; i < List_Nbr((yyvsp[(3) - (4)].l)); i++){
 	Shape TheShape;
@@ -6657,10 +6700,10 @@ yyreduce:
     ;}
     break;
 
-  case 166:
+  case 164:
 
 /* Line 1464 of yacc.c  */
-#line 2269 "Gmsh.y"
+#line 2324 "Gmsh.y"
     {
 #if defined(HAVE_MESH)
       GModel::current()->getFields()->deleteField((int)(yyvsp[(4) - (6)].d));
@@ -6668,10 +6711,10 @@ yyreduce:
     ;}
     break;
 
-  case 167:
+  case 165:
 
 /* Line 1464 of yacc.c  */
-#line 2275 "Gmsh.y"
+#line 2330 "Gmsh.y"
     {
 #if defined(HAVE_POST)
       if(!strcmp((yyvsp[(2) - (6)].c), "View")){
@@ -6688,10 +6731,10 @@ yyreduce:
     ;}
     break;
 
-  case 168:
+  case 166:
 
 /* Line 1464 of yacc.c  */
-#line 2290 "Gmsh.y"
+#line 2345 "Gmsh.y"
     {
       if(!strcmp((yyvsp[(2) - (3)].c), "Meshes") || !strcmp((yyvsp[(2) - (3)].c), "All")){
         ClearProject();
@@ -6721,10 +6764,10 @@ yyreduce:
     ;}
     break;
 
-  case 169:
+  case 167:
 
 /* Line 1464 of yacc.c  */
-#line 2318 "Gmsh.y"
+#line 2373 "Gmsh.y"
     {
 #if defined(HAVE_POST)
       if(!strcmp((yyvsp[(2) - (4)].c), "Empty") && !strcmp((yyvsp[(3) - (4)].c), "Views")){
@@ -6738,24 +6781,24 @@ yyreduce:
     ;}
     break;
 
-  case 170:
+  case 168:
 
 /* Line 1464 of yacc.c  */
-#line 2335 "Gmsh.y"
+#line 2390 "Gmsh.y"
     {
       for(int i = 0; i < List_Nbr((yyvsp[(4) - (5)].l)); i++){
 	Shape TheShape;
 	List_Read((yyvsp[(4) - (5)].l), i, &TheShape);
 	ColorShape(TheShape.Type, TheShape.Num, (yyvsp[(2) - (5)].u));
       }
-      List_Delete((yyvsp[(4) - (5)].l));      
+      List_Delete((yyvsp[(4) - (5)].l));
     ;}
     break;
 
-  case 171:
+  case 169:
 
 /* Line 1464 of yacc.c  */
-#line 2349 "Gmsh.y"
+#line 2404 "Gmsh.y"
     {
       for(int i = 0; i < 4; i++)
 	VisibilityShape((yyvsp[(2) - (3)].c), i, 1);
@@ -6763,10 +6806,10 @@ yyreduce:
     ;}
     break;
 
-  case 172:
+  case 170:
 
 /* Line 1464 of yacc.c  */
-#line 2355 "Gmsh.y"
+#line 2410 "Gmsh.y"
     {
       for(int i = 0; i < 4; i++)
 	VisibilityShape((yyvsp[(2) - (3)].c), i, 0);
@@ -6774,10 +6817,10 @@ yyreduce:
     ;}
     break;
 
-  case 173:
+  case 171:
 
 /* Line 1464 of yacc.c  */
-#line 2361 "Gmsh.y"
+#line 2416 "Gmsh.y"
     {
       for(int i = 0; i < List_Nbr((yyvsp[(3) - (4)].l)); i++){
 	Shape TheShape;
@@ -6788,10 +6831,10 @@ yyreduce:
     ;}
     break;
 
-  case 174:
+  case 172:
 
 /* Line 1464 of yacc.c  */
-#line 2370 "Gmsh.y"
+#line 2425 "Gmsh.y"
     {
       for(int i = 0; i < List_Nbr((yyvsp[(3) - (4)].l)); i++){
 	Shape TheShape;
@@ -6802,10 +6845,10 @@ yyreduce:
     ;}
     break;
 
-  case 175:
+  case 173:
 
 /* Line 1464 of yacc.c  */
-#line 2384 "Gmsh.y"
+#line 2439 "Gmsh.y"
     {
       if(!strcmp((yyvsp[(1) - (3)].c), "Include")){
         std::string tmp = FixRelativePath(gmsh_yyname, (yyvsp[(2) - (3)].c));
@@ -6849,10 +6892,10 @@ yyreduce:
     ;}
     break;
 
-  case 176:
+  case 174:
 
 /* Line 1464 of yacc.c  */
-#line 2426 "Gmsh.y"
+#line 2481 "Gmsh.y"
     {
 #if defined(HAVE_POST)
       if(!strcmp((yyvsp[(1) - (7)].c), "Save") && !strcmp((yyvsp[(2) - (7)].c), "View")){
@@ -6871,10 +6914,10 @@ yyreduce:
     ;}
     break;
 
-  case 177:
+  case 175:
 
 /* Line 1464 of yacc.c  */
-#line 2443 "Gmsh.y"
+#line 2498 "Gmsh.y"
     {
 #if defined(HAVE_POST) && defined(HAVE_MESH)
       if(!strcmp((yyvsp[(1) - (7)].c), "Background") && !strcmp((yyvsp[(2) - (7)].c), "Mesh")  && !strcmp((yyvsp[(3) - (7)].c), "View")){
@@ -6891,10 +6934,10 @@ yyreduce:
     ;}
     break;
 
-  case 178:
+  case 176:
 
 /* Line 1464 of yacc.c  */
-#line 2458 "Gmsh.y"
+#line 2513 "Gmsh.y"
     {
       if(!strcmp((yyvsp[(1) - (3)].c), "Sleep")){
 	SleepInSeconds((yyvsp[(2) - (3)].d));
@@ -6915,10 +6958,10 @@ yyreduce:
     ;}
     break;
 
-  case 179:
+  case 177:
 
 /* Line 1464 of yacc.c  */
-#line 2477 "Gmsh.y"
+#line 2532 "Gmsh.y"
     {
 #if defined(HAVE_PLUGINS)
        try {
@@ -6932,10 +6975,10 @@ yyreduce:
      ;}
     break;
 
-  case 180:
+  case 178:
 
 /* Line 1464 of yacc.c  */
-#line 2489 "Gmsh.y"
+#line 2544 "Gmsh.y"
     {
 #if defined(HAVE_POST)
       if(!strcmp((yyvsp[(2) - (3)].c), "ElementsFromAllViews"))
@@ -6961,31 +7004,31 @@ yyreduce:
     ;}
     break;
 
-  case 181:
+  case 179:
 
 /* Line 1464 of yacc.c  */
-#line 2513 "Gmsh.y"
+#line 2568 "Gmsh.y"
     {
       exit(0);
     ;}
     break;
 
-  case 182:
+  case 180:
 
 /* Line 1464 of yacc.c  */
-#line 2517 "Gmsh.y"
+#line 2572 "Gmsh.y"
     {
       // FIXME: this is a hack to force a transfer from the old DB to
-      // the new DB. This will become unnecessary if/when we fill the 
+      // the new DB. This will become unnecessary if/when we fill the
       // GModel directly during parsing.
       GModel::current()->importGEOInternals();
     ;}
     break;
 
-  case 183:
+  case 181:
 
 /* Line 1464 of yacc.c  */
-#line 2524 "Gmsh.y"
+#line 2579 "Gmsh.y"
     {
       CTX::instance()->forcedBBox = 0;
       GModel::current()->importGEOInternals();
@@ -6993,20 +7036,20 @@ yyreduce:
     ;}
     break;
 
-  case 184:
+  case 182:
 
 /* Line 1464 of yacc.c  */
-#line 2530 "Gmsh.y"
+#line 2585 "Gmsh.y"
     {
       CTX::instance()->forcedBBox = 1;
       SetBoundingBox((yyvsp[(3) - (15)].d), (yyvsp[(5) - (15)].d), (yyvsp[(7) - (15)].d), (yyvsp[(9) - (15)].d), (yyvsp[(11) - (15)].d), (yyvsp[(13) - (15)].d));
     ;}
     break;
 
-  case 185:
+  case 183:
 
 /* Line 1464 of yacc.c  */
-#line 2535 "Gmsh.y"
+#line 2590 "Gmsh.y"
     {
 #if defined(HAVE_OPENGL)
       drawContext::global()->draw();
@@ -7014,38 +7057,38 @@ yyreduce:
     ;}
     break;
 
-  case 186:
+  case 184:
 
 /* Line 1464 of yacc.c  */
-#line 2541 "Gmsh.y"
+#line 2596 "Gmsh.y"
     {
       GModel::current()->createTopologyFromMesh();
     ;}
     break;
 
-  case 187:
+  case 185:
 
 /* Line 1464 of yacc.c  */
-#line 2545 "Gmsh.y"
+#line 2600 "Gmsh.y"
     {
       GModel::current()->createTopologyFromMesh(1);
     ;}
     break;
 
-  case 188:
+  case 186:
 
 /* Line 1464 of yacc.c  */
-#line 2549 "Gmsh.y"
+#line 2604 "Gmsh.y"
     {
       GModel::current()->importGEOInternals();
       GModel::current()->refineMesh(CTX::instance()->mesh.secondOrderLinear);
     ;}
     break;
 
-  case 189:
+  case 187:
 
 /* Line 1464 of yacc.c  */
-#line 2559 "Gmsh.y"
+#line 2614 "Gmsh.y"
     {
       LoopControlVariablesTab[ImbricatedLoop][0] = (yyvsp[(3) - (6)].d);
       LoopControlVariablesTab[ImbricatedLoop][1] = (yyvsp[(5) - (6)].d);
@@ -7064,10 +7107,10 @@ yyreduce:
     ;}
     break;
 
-  case 190:
+  case 188:
 
 /* Line 1464 of yacc.c  */
-#line 2576 "Gmsh.y"
+#line 2631 "Gmsh.y"
     {
       LoopControlVariablesTab[ImbricatedLoop][0] = (yyvsp[(3) - (8)].d);
       LoopControlVariablesTab[ImbricatedLoop][1] = (yyvsp[(5) - (8)].d);
@@ -7086,20 +7129,22 @@ yyreduce:
     ;}
     break;
 
-  case 191:
+  case 189:
 
 /* Line 1464 of yacc.c  */
-#line 2593 "Gmsh.y"
+#line 2648 "Gmsh.y"
     {
       LoopControlVariablesTab[ImbricatedLoop][0] = (yyvsp[(5) - (8)].d);
       LoopControlVariablesTab[ImbricatedLoop][1] = (yyvsp[(7) - (8)].d);
       LoopControlVariablesTab[ImbricatedLoop][2] = 1.0;
       LoopControlVariablesNameTab[ImbricatedLoop] = (yyvsp[(2) - (8)].c);
-      gmsh_yysymbols[(yyvsp[(2) - (8)].c)].resize(1);
-      gmsh_yysymbols[(yyvsp[(2) - (8)].c)][0] = (yyvsp[(5) - (8)].d);
+      gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(2) - (8)].c)]);
+      s.list = false;
+      s.value.resize(1);
+      s.value[0] = (yyvsp[(5) - (8)].d);
       fgetpos(gmsh_yyin, &yyposImbricatedLoopsTab[ImbricatedLoop]);
       yylinenoImbricatedLoopsTab[ImbricatedLoop] = gmsh_yylineno;
-      if((yyvsp[(5) - (8)].d) > (yyvsp[(7) - (8)].d)) 
+      if((yyvsp[(5) - (8)].d) > (yyvsp[(7) - (8)].d))
 	skip_until("For", "EndFor");
       else
 	ImbricatedLoop++;
@@ -7110,17 +7155,19 @@ yyreduce:
     ;}
     break;
 
-  case 192:
+  case 190:
 
 /* Line 1464 of yacc.c  */
-#line 2612 "Gmsh.y"
+#line 2669 "Gmsh.y"
     {
       LoopControlVariablesTab[ImbricatedLoop][0] = (yyvsp[(5) - (10)].d);
       LoopControlVariablesTab[ImbricatedLoop][1] = (yyvsp[(7) - (10)].d);
       LoopControlVariablesTab[ImbricatedLoop][2] = (yyvsp[(9) - (10)].d);
       LoopControlVariablesNameTab[ImbricatedLoop] = (yyvsp[(2) - (10)].c);
-      gmsh_yysymbols[(yyvsp[(2) - (10)].c)].resize(1);
-      gmsh_yysymbols[(yyvsp[(2) - (10)].c)][0] = (yyvsp[(5) - (10)].d);
+      gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(2) - (10)].c)]);
+      s.list = false;
+      s.value.resize(1);
+      s.value[0] = (yyvsp[(5) - (10)].d);
       fgetpos(gmsh_yyin, &yyposImbricatedLoopsTab[ImbricatedLoop]);
       yylinenoImbricatedLoopsTab[ImbricatedLoop] = gmsh_yylineno;
       if(((yyvsp[(9) - (10)].d) > 0. && (yyvsp[(5) - (10)].d) > (yyvsp[(7) - (10)].d)) || ((yyvsp[(9) - (10)].d) < 0. && (yyvsp[(5) - (10)].d) < (yyvsp[(7) - (10)].d)))
@@ -7134,10 +7181,10 @@ yyreduce:
     ;}
     break;
 
-  case 193:
+  case 191:
 
 /* Line 1464 of yacc.c  */
-#line 2631 "Gmsh.y"
+#line 2690 "Gmsh.y"
     {
       if(ImbricatedLoop <= 0){
 	yymsg(0, "Invalid For/EndFor loop");
@@ -7148,10 +7195,15 @@ yyreduce:
         const char *name = LoopControlVariablesNameTab[ImbricatedLoop - 1];
         if(name){
           if(!gmsh_yysymbols.count(name))
-            yymsg(0, "Unknown loop variable");
+            yymsg(0, "Unknown loop variable '%s'", name);
           else{
-            gmsh_yysymbols[name][0] += step;
-            LoopControlVariablesTab[ImbricatedLoop - 1][0] = gmsh_yysymbols[name][0];
+            gmsh_yysymbol &s(gmsh_yysymbols[name]);
+            if(!s.list && s.value.size()){
+              s.value[0] += step;
+              LoopControlVariablesTab[ImbricatedLoop - 1][0] = s.value[0];
+            }
+            else
+              yymsg(0, "Bad loop variable %s", name);
           }
         }
         else{
@@ -7169,10 +7221,10 @@ yyreduce:
     ;}
     break;
 
-  case 194:
+  case 192:
 
 /* Line 1464 of yacc.c  */
-#line 2661 "Gmsh.y"
+#line 2725 "Gmsh.y"
     {
       if(!FunctionManager::Instance()->createFunction
          ((yyvsp[(2) - (2)].c), gmsh_yyin, gmsh_yyname, gmsh_yylineno))
@@ -7182,10 +7234,10 @@ yyreduce:
     ;}
     break;
 
-  case 195:
+  case 193:
 
 /* Line 1464 of yacc.c  */
-#line 2669 "Gmsh.y"
+#line 2733 "Gmsh.y"
     {
       if(!FunctionManager::Instance()->leaveFunction
          (&gmsh_yyin, gmsh_yyname, gmsh_yylineno))
@@ -7193,10 +7245,10 @@ yyreduce:
     ;}
     break;
 
-  case 196:
+  case 194:
 
 /* Line 1464 of yacc.c  */
-#line 2675 "Gmsh.y"
+#line 2739 "Gmsh.y"
     {
       if(!FunctionManager::Instance()->enterFunction
          ((yyvsp[(2) - (3)].c), &gmsh_yyin, gmsh_yyname, gmsh_yylineno))
@@ -7205,145 +7257,145 @@ yyreduce:
     ;}
     break;
 
-  case 197:
+  case 195:
 
 /* Line 1464 of yacc.c  */
-#line 2682 "Gmsh.y"
+#line 2746 "Gmsh.y"
     {
       if(!(yyvsp[(3) - (4)].d)) skip_until("If", "EndIf");
     ;}
     break;
 
-  case 198:
+  case 196:
 
 /* Line 1464 of yacc.c  */
-#line 2686 "Gmsh.y"
+#line 2750 "Gmsh.y"
     {
     ;}
     break;
 
-  case 199:
+  case 197:
 
 /* Line 1464 of yacc.c  */
-#line 2695 "Gmsh.y"
+#line 2759 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShapes(TRANSLATE, (yyvsp[(4) - (5)].l), 
+      ExtrudeShapes(TRANSLATE, (yyvsp[(4) - (5)].l),
 		    (yyvsp[(2) - (5)].v)[0], (yyvsp[(2) - (5)].v)[1], (yyvsp[(2) - (5)].v)[2], 0., 0., 0., 0., 0., 0., 0.,
 		    NULL, (yyval.l));
       List_Delete((yyvsp[(4) - (5)].l));
     ;}
     break;
 
-  case 200:
+  case 198:
 
 /* Line 1464 of yacc.c  */
-#line 2703 "Gmsh.y"
+#line 2767 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShapes(ROTATE, (yyvsp[(10) - (11)].l), 
+      ExtrudeShapes(ROTATE, (yyvsp[(10) - (11)].l),
 		    0., 0., 0., (yyvsp[(3) - (11)].v)[0], (yyvsp[(3) - (11)].v)[1], (yyvsp[(3) - (11)].v)[2], (yyvsp[(5) - (11)].v)[0], (yyvsp[(5) - (11)].v)[1], (yyvsp[(5) - (11)].v)[2], (yyvsp[(7) - (11)].d),
 		    NULL, (yyval.l));
       List_Delete((yyvsp[(10) - (11)].l));
     ;}
     break;
 
-  case 201:
+  case 199:
 
 /* Line 1464 of yacc.c  */
-#line 2711 "Gmsh.y"
+#line 2775 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShapes(TRANSLATE_ROTATE, (yyvsp[(12) - (13)].l), 
+      ExtrudeShapes(TRANSLATE_ROTATE, (yyvsp[(12) - (13)].l),
 		    (yyvsp[(3) - (13)].v)[0], (yyvsp[(3) - (13)].v)[1], (yyvsp[(3) - (13)].v)[2], (yyvsp[(5) - (13)].v)[0], (yyvsp[(5) - (13)].v)[1], (yyvsp[(5) - (13)].v)[2], (yyvsp[(7) - (13)].v)[0], (yyvsp[(7) - (13)].v)[1], (yyvsp[(7) - (13)].v)[2], (yyvsp[(9) - (13)].d),
 		    NULL, (yyval.l));
       List_Delete((yyvsp[(12) - (13)].l));
     ;}
     break;
 
-  case 202:
+  case 200:
 
 /* Line 1464 of yacc.c  */
-#line 2719 "Gmsh.y"
+#line 2783 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
     ;}
     break;
 
-  case 203:
+  case 201:
 
 /* Line 1464 of yacc.c  */
-#line 2724 "Gmsh.y"
+#line 2788 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShapes(TRANSLATE, (yyvsp[(4) - (7)].l), 
+      ExtrudeShapes(TRANSLATE, (yyvsp[(4) - (7)].l),
 		    (yyvsp[(2) - (7)].v)[0], (yyvsp[(2) - (7)].v)[1], (yyvsp[(2) - (7)].v)[2], 0., 0., 0., 0., 0., 0., 0.,
 		    &extr, (yyval.l));
       List_Delete((yyvsp[(4) - (7)].l));
     ;}
     break;
 
-  case 204:
+  case 202:
 
 /* Line 1464 of yacc.c  */
-#line 2732 "Gmsh.y"
+#line 2796 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
     ;}
     break;
 
-  case 205:
+  case 203:
 
 /* Line 1464 of yacc.c  */
-#line 2737 "Gmsh.y"
+#line 2801 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShapes(ROTATE, (yyvsp[(10) - (13)].l), 
+      ExtrudeShapes(ROTATE, (yyvsp[(10) - (13)].l),
 		    0., 0., 0., (yyvsp[(3) - (13)].v)[0], (yyvsp[(3) - (13)].v)[1], (yyvsp[(3) - (13)].v)[2], (yyvsp[(5) - (13)].v)[0], (yyvsp[(5) - (13)].v)[1], (yyvsp[(5) - (13)].v)[2], (yyvsp[(7) - (13)].d),
 		    &extr, (yyval.l));
       List_Delete((yyvsp[(10) - (13)].l));
     ;}
     break;
 
-  case 206:
+  case 204:
 
 /* Line 1464 of yacc.c  */
-#line 2745 "Gmsh.y"
+#line 2809 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
     ;}
     break;
 
-  case 207:
+  case 205:
 
 /* Line 1464 of yacc.c  */
-#line 2750 "Gmsh.y"
+#line 2814 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShapes(TRANSLATE_ROTATE, (yyvsp[(12) - (15)].l), 
+      ExtrudeShapes(TRANSLATE_ROTATE, (yyvsp[(12) - (15)].l),
 		    (yyvsp[(3) - (15)].v)[0], (yyvsp[(3) - (15)].v)[1], (yyvsp[(3) - (15)].v)[2], (yyvsp[(5) - (15)].v)[0], (yyvsp[(5) - (15)].v)[1], (yyvsp[(5) - (15)].v)[2], (yyvsp[(7) - (15)].v)[0], (yyvsp[(7) - (15)].v)[1], (yyvsp[(7) - (15)].v)[2], (yyvsp[(9) - (15)].d),
 		    &extr, (yyval.l));
       List_Delete((yyvsp[(12) - (15)].l));
     ;}
     break;
 
-  case 208:
+  case 206:
 
 /* Line 1464 of yacc.c  */
-#line 2758 "Gmsh.y"
+#line 2822 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
     ;}
     break;
 
-  case 209:
+  case 207:
 
 /* Line 1464 of yacc.c  */
-#line 2763 "Gmsh.y"
+#line 2827 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
       ExtrudeShapes(BOUNDARY_LAYER, (yyvsp[(3) - (6)].l), 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.,
@@ -7352,332 +7404,332 @@ yyreduce:
     ;}
     break;
 
-  case 210:
+  case 208:
 
 /* Line 1464 of yacc.c  */
-#line 2771 "Gmsh.y"
+#line 2835 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE, MSH_POINT, (int)(yyvsp[(4) - (8)].d), 
+      ExtrudeShape(TRANSLATE, MSH_POINT, (int)(yyvsp[(4) - (8)].d),
 		   (yyvsp[(6) - (8)].v)[0], (yyvsp[(6) - (8)].v)[1], (yyvsp[(6) - (8)].v)[2], 0., 0., 0., 0., 0., 0., 0.,
 		   NULL, (yyval.l));
     ;}
     break;
 
-  case 211:
+  case 209:
 
 /* Line 1464 of yacc.c  */
-#line 2778 "Gmsh.y"
+#line 2842 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE, MSH_SEGM_LINE, (int)(yyvsp[(4) - (8)].d), 
+      ExtrudeShape(TRANSLATE, MSH_SEGM_LINE, (int)(yyvsp[(4) - (8)].d),
 		   (yyvsp[(6) - (8)].v)[0], (yyvsp[(6) - (8)].v)[1], (yyvsp[(6) - (8)].v)[2], 0., 0., 0., 0., 0., 0., 0.,
 		   NULL, (yyval.l));
     ;}
     break;
 
-  case 212:
+  case 210:
 
 /* Line 1464 of yacc.c  */
-#line 2785 "Gmsh.y"
+#line 2849 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE, MSH_SURF_PLAN, (int)(yyvsp[(4) - (8)].d), 
+      ExtrudeShape(TRANSLATE, MSH_SURF_PLAN, (int)(yyvsp[(4) - (8)].d),
 		   (yyvsp[(6) - (8)].v)[0], (yyvsp[(6) - (8)].v)[1], (yyvsp[(6) - (8)].v)[2], 0., 0., 0., 0., 0., 0., 0.,
 		   NULL, (yyval.l));
     ;}
     break;
 
-  case 213:
+  case 211:
 
 /* Line 1464 of yacc.c  */
-#line 2792 "Gmsh.y"
+#line 2856 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(ROTATE, MSH_POINT, (int)(yyvsp[(4) - (12)].d), 
+      ExtrudeShape(ROTATE, MSH_POINT, (int)(yyvsp[(4) - (12)].d),
 		   0., 0., 0., (yyvsp[(6) - (12)].v)[0], (yyvsp[(6) - (12)].v)[1], (yyvsp[(6) - (12)].v)[2], (yyvsp[(8) - (12)].v)[0], (yyvsp[(8) - (12)].v)[1], (yyvsp[(8) - (12)].v)[2], (yyvsp[(10) - (12)].d),
 		   NULL, (yyval.l));
     ;}
     break;
 
-  case 214:
+  case 212:
 
 /* Line 1464 of yacc.c  */
-#line 2799 "Gmsh.y"
+#line 2863 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(ROTATE, MSH_SEGM_LINE, (int)(yyvsp[(4) - (12)].d), 
+      ExtrudeShape(ROTATE, MSH_SEGM_LINE, (int)(yyvsp[(4) - (12)].d),
 		   0., 0., 0., (yyvsp[(6) - (12)].v)[0], (yyvsp[(6) - (12)].v)[1], (yyvsp[(6) - (12)].v)[2], (yyvsp[(8) - (12)].v)[0], (yyvsp[(8) - (12)].v)[1], (yyvsp[(8) - (12)].v)[2], (yyvsp[(10) - (12)].d),
 		   NULL, (yyval.l));
     ;}
     break;
 
-  case 215:
+  case 213:
 
 /* Line 1464 of yacc.c  */
-#line 2806 "Gmsh.y"
+#line 2870 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(ROTATE, MSH_SURF_PLAN, (int)(yyvsp[(4) - (12)].d), 
+      ExtrudeShape(ROTATE, MSH_SURF_PLAN, (int)(yyvsp[(4) - (12)].d),
 		   0., 0., 0., (yyvsp[(6) - (12)].v)[0], (yyvsp[(6) - (12)].v)[1], (yyvsp[(6) - (12)].v)[2], (yyvsp[(8) - (12)].v)[0], (yyvsp[(8) - (12)].v)[1], (yyvsp[(8) - (12)].v)[2], (yyvsp[(10) - (12)].d),
 		   NULL, (yyval.l));
     ;}
     break;
 
-  case 216:
+  case 214:
 
 /* Line 1464 of yacc.c  */
-#line 2813 "Gmsh.y"
+#line 2877 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE_ROTATE, MSH_POINT, (int)(yyvsp[(4) - (14)].d), 
+      ExtrudeShape(TRANSLATE_ROTATE, MSH_POINT, (int)(yyvsp[(4) - (14)].d),
 		   (yyvsp[(6) - (14)].v)[0], (yyvsp[(6) - (14)].v)[1], (yyvsp[(6) - (14)].v)[2], (yyvsp[(8) - (14)].v)[0], (yyvsp[(8) - (14)].v)[1], (yyvsp[(8) - (14)].v)[2], (yyvsp[(10) - (14)].v)[0], (yyvsp[(10) - (14)].v)[1], (yyvsp[(10) - (14)].v)[2], (yyvsp[(12) - (14)].d),
 		   NULL, (yyval.l));
     ;}
     break;
 
-  case 217:
+  case 215:
 
 /* Line 1464 of yacc.c  */
-#line 2820 "Gmsh.y"
+#line 2884 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE_ROTATE, MSH_SEGM_LINE, (int)(yyvsp[(4) - (14)].d), 
+      ExtrudeShape(TRANSLATE_ROTATE, MSH_SEGM_LINE, (int)(yyvsp[(4) - (14)].d),
 		   (yyvsp[(6) - (14)].v)[0], (yyvsp[(6) - (14)].v)[1], (yyvsp[(6) - (14)].v)[2], (yyvsp[(8) - (14)].v)[0], (yyvsp[(8) - (14)].v)[1], (yyvsp[(8) - (14)].v)[2], (yyvsp[(10) - (14)].v)[0], (yyvsp[(10) - (14)].v)[1], (yyvsp[(10) - (14)].v)[2], (yyvsp[(12) - (14)].d),
 		   NULL, (yyval.l));
     ;}
     break;
 
-  case 218:
+  case 216:
 
 /* Line 1464 of yacc.c  */
-#line 2827 "Gmsh.y"
+#line 2891 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE_ROTATE, MSH_SURF_PLAN, (int)(yyvsp[(4) - (14)].d), 
+      ExtrudeShape(TRANSLATE_ROTATE, MSH_SURF_PLAN, (int)(yyvsp[(4) - (14)].d),
 		   (yyvsp[(6) - (14)].v)[0], (yyvsp[(6) - (14)].v)[1], (yyvsp[(6) - (14)].v)[2], (yyvsp[(8) - (14)].v)[0], (yyvsp[(8) - (14)].v)[1], (yyvsp[(8) - (14)].v)[2], (yyvsp[(10) - (14)].v)[0], (yyvsp[(10) - (14)].v)[1], (yyvsp[(10) - (14)].v)[2], (yyvsp[(12) - (14)].d),
 		   NULL, (yyval.l));
     ;}
     break;
 
-  case 219:
+  case 217:
 
 /* Line 1464 of yacc.c  */
-#line 2834 "Gmsh.y"
+#line 2898 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
     ;}
     break;
 
-  case 220:
+  case 218:
 
 /* Line 1464 of yacc.c  */
-#line 2839 "Gmsh.y"
+#line 2903 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE, MSH_POINT, (int)(yyvsp[(4) - (12)].d), 
+      ExtrudeShape(TRANSLATE, MSH_POINT, (int)(yyvsp[(4) - (12)].d),
 		   (yyvsp[(6) - (12)].v)[0], (yyvsp[(6) - (12)].v)[1], (yyvsp[(6) - (12)].v)[2], 0., 0., 0., 0., 0., 0., 0.,
 		   &extr, (yyval.l));
     ;}
     break;
 
-  case 221:
+  case 219:
 
 /* Line 1464 of yacc.c  */
-#line 2846 "Gmsh.y"
+#line 2910 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
     ;}
     break;
 
-  case 222:
+  case 220:
 
 /* Line 1464 of yacc.c  */
-#line 2851 "Gmsh.y"
+#line 2915 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE, MSH_SEGM_LINE, (int)(yyvsp[(4) - (12)].d), 
+      ExtrudeShape(TRANSLATE, MSH_SEGM_LINE, (int)(yyvsp[(4) - (12)].d),
 		   (yyvsp[(6) - (12)].v)[0], (yyvsp[(6) - (12)].v)[1], (yyvsp[(6) - (12)].v)[2], 0., 0., 0., 0., 0., 0., 0.,
 		   &extr, (yyval.l));
     ;}
     break;
 
-  case 223:
+  case 221:
 
 /* Line 1464 of yacc.c  */
-#line 2858 "Gmsh.y"
+#line 2922 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
     ;}
     break;
 
-  case 224:
+  case 222:
 
 /* Line 1464 of yacc.c  */
-#line 2863 "Gmsh.y"
+#line 2927 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE, MSH_SURF_PLAN, (int)(yyvsp[(4) - (12)].d), 
+      ExtrudeShape(TRANSLATE, MSH_SURF_PLAN, (int)(yyvsp[(4) - (12)].d),
 		   (yyvsp[(6) - (12)].v)[0], (yyvsp[(6) - (12)].v)[1], (yyvsp[(6) - (12)].v)[2], 0., 0., 0., 0., 0., 0., 0.,
 		   &extr, (yyval.l));
     ;}
     break;
 
-  case 225:
+  case 223:
 
 /* Line 1464 of yacc.c  */
-#line 2870 "Gmsh.y"
+#line 2934 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
     ;}
     break;
 
-  case 226:
+  case 224:
 
 /* Line 1464 of yacc.c  */
-#line 2875 "Gmsh.y"
+#line 2939 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(ROTATE, MSH_POINT, (int)(yyvsp[(4) - (16)].d), 
+      ExtrudeShape(ROTATE, MSH_POINT, (int)(yyvsp[(4) - (16)].d),
 		   0., 0., 0., (yyvsp[(6) - (16)].v)[0], (yyvsp[(6) - (16)].v)[1], (yyvsp[(6) - (16)].v)[2], (yyvsp[(8) - (16)].v)[0], (yyvsp[(8) - (16)].v)[1], (yyvsp[(8) - (16)].v)[2], (yyvsp[(10) - (16)].d),
 		   &extr, (yyval.l));
     ;}
     break;
 
-  case 227:
+  case 225:
 
 /* Line 1464 of yacc.c  */
-#line 2882 "Gmsh.y"
+#line 2946 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
     ;}
     break;
 
-  case 228:
+  case 226:
 
 /* Line 1464 of yacc.c  */
-#line 2887 "Gmsh.y"
+#line 2951 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(ROTATE, MSH_SEGM_LINE, (int)(yyvsp[(4) - (16)].d), 
+      ExtrudeShape(ROTATE, MSH_SEGM_LINE, (int)(yyvsp[(4) - (16)].d),
 		   0., 0., 0., (yyvsp[(6) - (16)].v)[0], (yyvsp[(6) - (16)].v)[1], (yyvsp[(6) - (16)].v)[2], (yyvsp[(8) - (16)].v)[0], (yyvsp[(8) - (16)].v)[1], (yyvsp[(8) - (16)].v)[2], (yyvsp[(10) - (16)].d),
 		   &extr, (yyval.l));
     ;}
     break;
 
-  case 229:
+  case 227:
 
 /* Line 1464 of yacc.c  */
-#line 2894 "Gmsh.y"
+#line 2958 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
     ;}
     break;
 
-  case 230:
+  case 228:
 
 /* Line 1464 of yacc.c  */
-#line 2899 "Gmsh.y"
+#line 2963 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(ROTATE, MSH_SURF_PLAN, (int)(yyvsp[(4) - (16)].d), 
+      ExtrudeShape(ROTATE, MSH_SURF_PLAN, (int)(yyvsp[(4) - (16)].d),
 		   0., 0., 0., (yyvsp[(6) - (16)].v)[0], (yyvsp[(6) - (16)].v)[1], (yyvsp[(6) - (16)].v)[2], (yyvsp[(8) - (16)].v)[0], (yyvsp[(8) - (16)].v)[1], (yyvsp[(8) - (16)].v)[2], (yyvsp[(10) - (16)].d),
 		   &extr, (yyval.l));
     ;}
     break;
 
-  case 231:
+  case 229:
 
 /* Line 1464 of yacc.c  */
-#line 2906 "Gmsh.y"
+#line 2970 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
     ;}
     break;
 
-  case 232:
+  case 230:
 
 /* Line 1464 of yacc.c  */
-#line 2911 "Gmsh.y"
+#line 2975 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE_ROTATE, MSH_POINT, (int)(yyvsp[(4) - (18)].d), 
+      ExtrudeShape(TRANSLATE_ROTATE, MSH_POINT, (int)(yyvsp[(4) - (18)].d),
 		   (yyvsp[(6) - (18)].v)[0], (yyvsp[(6) - (18)].v)[1], (yyvsp[(6) - (18)].v)[2], (yyvsp[(8) - (18)].v)[0], (yyvsp[(8) - (18)].v)[1], (yyvsp[(8) - (18)].v)[2], (yyvsp[(10) - (18)].v)[0], (yyvsp[(10) - (18)].v)[1], (yyvsp[(10) - (18)].v)[2], (yyvsp[(12) - (18)].d),
 		   &extr, (yyval.l));
     ;}
     break;
 
-  case 233:
+  case 231:
 
 /* Line 1464 of yacc.c  */
-#line 2918 "Gmsh.y"
+#line 2982 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
     ;}
     break;
 
-  case 234:
+  case 232:
 
 /* Line 1464 of yacc.c  */
-#line 2923 "Gmsh.y"
+#line 2987 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE_ROTATE, MSH_SEGM_LINE, (int)(yyvsp[(4) - (18)].d), 
+      ExtrudeShape(TRANSLATE_ROTATE, MSH_SEGM_LINE, (int)(yyvsp[(4) - (18)].d),
 		   (yyvsp[(6) - (18)].v)[0], (yyvsp[(6) - (18)].v)[1], (yyvsp[(6) - (18)].v)[2], (yyvsp[(8) - (18)].v)[0], (yyvsp[(8) - (18)].v)[1], (yyvsp[(8) - (18)].v)[2], (yyvsp[(10) - (18)].v)[0], (yyvsp[(10) - (18)].v)[1], (yyvsp[(10) - (18)].v)[2], (yyvsp[(12) - (18)].d),
 		   &extr, (yyval.l));
     ;}
     break;
 
-  case 235:
+  case 233:
 
 /* Line 1464 of yacc.c  */
-#line 2930 "Gmsh.y"
+#line 2994 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
     ;}
     break;
 
-  case 236:
+  case 234:
 
 /* Line 1464 of yacc.c  */
-#line 2935 "Gmsh.y"
+#line 2999 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE_ROTATE, MSH_SURF_PLAN, (int)(yyvsp[(4) - (18)].d), 
+      ExtrudeShape(TRANSLATE_ROTATE, MSH_SURF_PLAN, (int)(yyvsp[(4) - (18)].d),
 		   (yyvsp[(6) - (18)].v)[0], (yyvsp[(6) - (18)].v)[1], (yyvsp[(6) - (18)].v)[2], (yyvsp[(8) - (18)].v)[0], (yyvsp[(8) - (18)].v)[1], (yyvsp[(8) - (18)].v)[2], (yyvsp[(10) - (18)].v)[0], (yyvsp[(10) - (18)].v)[1], (yyvsp[(10) - (18)].v)[2], (yyvsp[(12) - (18)].d),
 		   &extr, (yyval.l));
     ;}
     break;
 
-  case 237:
+  case 235:
 
 /* Line 1464 of yacc.c  */
-#line 2946 "Gmsh.y"
+#line 3010 "Gmsh.y"
     {
     ;}
     break;
 
-  case 238:
+  case 236:
 
 /* Line 1464 of yacc.c  */
-#line 2949 "Gmsh.y"
+#line 3013 "Gmsh.y"
     {
     ;}
     break;
 
-  case 239:
+  case 237:
 
 /* Line 1464 of yacc.c  */
-#line 2955 "Gmsh.y"
+#line 3019 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = true;
       extr.mesh.NbLayer = 1;
@@ -7688,10 +7740,10 @@ yyreduce:
     ;}
     break;
 
-  case 240:
+  case 238:
 
 /* Line 1464 of yacc.c  */
-#line 2964 "Gmsh.y"
+#line 3028 "Gmsh.y"
     {
       extr.mesh.ExtrudeMesh = true;
       extr.mesh.NbLayer = List_Nbr((yyvsp[(3) - (7)].l));
@@ -7713,10 +7765,10 @@ yyreduce:
     ;}
     break;
 
-  case 241:
+  case 239:
 
 /* Line 1464 of yacc.c  */
-#line 2984 "Gmsh.y"
+#line 3048 "Gmsh.y"
     {
       yymsg(0, "Explicit region numbers in layers are deprecated");
       extr.mesh.ExtrudeMesh = true;
@@ -7733,7 +7785,7 @@ yyreduce:
 	}
       }
       else
-	yymsg(0, "Wrong layer definition {%d, %d, %d}", List_Nbr((yyvsp[(3) - (9)].l)), 
+	yymsg(0, "Wrong layer definition {%d, %d, %d}", List_Nbr((yyvsp[(3) - (9)].l)),
 	      List_Nbr((yyvsp[(5) - (9)].l)), List_Nbr((yyvsp[(7) - (9)].l)));
       List_Delete((yyvsp[(3) - (9)].l));
       List_Delete((yyvsp[(5) - (9)].l));
@@ -7741,55 +7793,55 @@ yyreduce:
     ;}
     break;
 
-  case 242:
+  case 240:
 
 /* Line 1464 of yacc.c  */
-#line 3007 "Gmsh.y"
+#line 3071 "Gmsh.y"
     {
       extr.mesh.Recombine = true;
     ;}
     break;
 
-  case 243:
+  case 241:
 
 /* Line 1464 of yacc.c  */
-#line 3011 "Gmsh.y"
+#line 3075 "Gmsh.y"
     {
       extr.mesh.QuadToTri = QUADTRI_DBL_1;
     ;}
     break;
 
-  case 244:
+  case 242:
 
 /* Line 1464 of yacc.c  */
-#line 3015 "Gmsh.y"
+#line 3079 "Gmsh.y"
     {
       extr.mesh.QuadToTri = QUADTRI_DBL_1_RECOMB;
     ;}
     break;
 
-  case 245:
+  case 243:
 
 /* Line 1464 of yacc.c  */
-#line 3019 "Gmsh.y"
+#line 3083 "Gmsh.y"
     {
       extr.mesh.QuadToTri = QUADTRI_SNGL_1;
     ;}
     break;
 
-  case 246:
+  case 244:
 
 /* Line 1464 of yacc.c  */
-#line 3023 "Gmsh.y"
+#line 3087 "Gmsh.y"
     {
       extr.mesh.QuadToTri = QUADTRI_SNGL_1_RECOMB;
     ;}
     break;
 
-  case 247:
+  case 245:
 
 /* Line 1464 of yacc.c  */
-#line 3027 "Gmsh.y"
+#line 3091 "Gmsh.y"
     {
       int num = (int)(yyvsp[(3) - (9)].d);
       if(FindSurface(num)){
@@ -7810,10 +7862,10 @@ yyreduce:
     ;}
     break;
 
-  case 248:
+  case 246:
 
 /* Line 1464 of yacc.c  */
-#line 3046 "Gmsh.y"
+#line 3110 "Gmsh.y"
     {
       if(!strcmp((yyvsp[(2) - (6)].c), "Index"))
         extr.mesh.BoundaryLayerIndex = (yyvsp[(4) - (6)].d);
@@ -7823,19 +7875,19 @@ yyreduce:
     ;}
     break;
 
-  case 249:
+  case 247:
 
 /* Line 1464 of yacc.c  */
-#line 3058 "Gmsh.y"
+#line 3122 "Gmsh.y"
     {
       (yyval.v)[0] = (yyval.v)[1] = 1.;
     ;}
     break;
 
-  case 250:
+  case 248:
 
 /* Line 1464 of yacc.c  */
-#line 3062 "Gmsh.y"
+#line 3126 "Gmsh.y"
     {
       if(!strcmp((yyvsp[(2) - (3)].c), "Progression") || !strcmp((yyvsp[(2) - (3)].c), "Power"))
         (yyval.v)[0] = 1.;
@@ -7850,19 +7902,19 @@ yyreduce:
     ;}
     break;
 
-  case 251:
+  case 249:
 
 /* Line 1464 of yacc.c  */
-#line 3077 "Gmsh.y"
+#line 3141 "Gmsh.y"
     {
       (yyval.i) = -1; // left
     ;}
     break;
 
-  case 252:
+  case 250:
 
 /* Line 1464 of yacc.c  */
-#line 3081 "Gmsh.y"
+#line 3145 "Gmsh.y"
     {
       if(!strcmp((yyvsp[(1) - (1)].c), "Right"))
         (yyval.i) = 1;
@@ -7874,46 +7926,46 @@ yyreduce:
     ;}
     break;
 
-  case 253:
+  case 251:
 
 /* Line 1464 of yacc.c  */
-#line 3093 "Gmsh.y"
+#line 3157 "Gmsh.y"
     {
      (yyval.l) = List_Create(1, 1, sizeof(double));
    ;}
     break;
 
-  case 254:
+  case 252:
 
 /* Line 1464 of yacc.c  */
-#line 3097 "Gmsh.y"
+#line 3161 "Gmsh.y"
     {
      (yyval.l) = (yyvsp[(2) - (2)].l);
    ;}
     break;
 
-  case 255:
+  case 253:
 
 /* Line 1464 of yacc.c  */
-#line 3102 "Gmsh.y"
+#line 3166 "Gmsh.y"
     {
       (yyval.i) = 45;
     ;}
     break;
 
-  case 256:
+  case 254:
 
 /* Line 1464 of yacc.c  */
-#line 3106 "Gmsh.y"
+#line 3170 "Gmsh.y"
     {
       (yyval.i) = (int)(yyvsp[(2) - (2)].d);
     ;}
     break;
 
-  case 257:
+  case 255:
 
 /* Line 1464 of yacc.c  */
-#line 3113 "Gmsh.y"
+#line 3177 "Gmsh.y"
     {
       int type = (int)(yyvsp[(6) - (7)].v)[0];
       double coef = fabs((yyvsp[(6) - (7)].v)[1]);
@@ -7930,7 +7982,7 @@ yyreduce:
           }
         }
         else{
-          for(GModel::eiter it = GModel::current()->firstEdge(); 
+          for(GModel::eiter it = GModel::current()->firstEdge();
               it != GModel::current()->lastEdge(); it++){
             (*it)->meshAttributes.Method = MESH_TRANSFINITE;
             (*it)->meshAttributes.nbPointsTransfinite = ((yyvsp[(5) - (7)].d) > 2) ? (int)(yyvsp[(5) - (7)].d) : 2;
@@ -7971,10 +8023,10 @@ yyreduce:
     ;}
     break;
 
-  case 258:
+  case 256:
 
 /* Line 1464 of yacc.c  */
-#line 3169 "Gmsh.y"
+#line 3233 "Gmsh.y"
     {
       int k = List_Nbr((yyvsp[(4) - (6)].l));
       if(k != 0 && k != 3 && k != 4){
@@ -7993,7 +8045,7 @@ yyreduce:
             }
           }
           else{
-            for(GModel::fiter it = GModel::current()->firstFace(); 
+            for(GModel::fiter it = GModel::current()->firstFace();
                 it != GModel::current()->lastFace(); it++){
               (*it)->meshAttributes.Method = MESH_TRANSFINITE;
               (*it)->meshAttributes.transfiniteArrangement = (yyvsp[(5) - (6)].i);
@@ -8046,20 +8098,20 @@ yyreduce:
     ;}
     break;
 
-  case 259:
+  case 257:
 
 /* Line 1464 of yacc.c  */
-#line 3239 "Gmsh.y"
+#line 3303 "Gmsh.y"
     {
       yymsg(1, "Elliptic Surface is deprecated: use Transfinite instead (with smoothing)");
       List_Delete((yyvsp[(7) - (8)].l));
     ;}
     break;
 
-  case 260:
+  case 258:
 
 /* Line 1464 of yacc.c  */
-#line 3244 "Gmsh.y"
+#line 3308 "Gmsh.y"
     {
       int k = List_Nbr((yyvsp[(4) - (5)].l));
       if(k != 0 && k != 6 && k != 8){
@@ -8078,7 +8130,7 @@ yyreduce:
             }
           }
           else{
-            for(GModel::riter it = GModel::current()->firstRegion(); 
+            for(GModel::riter it = GModel::current()->firstRegion();
                 it != GModel::current()->lastRegion(); it++){
               (*it)->meshAttributes.Method = MESH_TRANSFINITE;
             }
@@ -8128,10 +8180,10 @@ yyreduce:
     ;}
     break;
 
-  case 261:
+  case 259:
 
 /* Line 1464 of yacc.c  */
-#line 3311 "Gmsh.y"
+#line 3375 "Gmsh.y"
     {
       if(!(yyvsp[(2) - (3)].l)){
   	  List_T *tmp = Tree2List(GModel::current()->getGEOInternals()->Volumes);
@@ -8143,7 +8195,7 @@ yyreduce:
           }
         }
         else{
-          for(GModel::riter it = GModel::current()->firstRegion(); 
+          for(GModel::riter it = GModel::current()->firstRegion();
               it != GModel::current()->lastRegion(); it++)
             (*it)->meshAttributes.QuadTri = TRANSFINITE_QUADTRI_1;
         }
@@ -8169,10 +8221,10 @@ yyreduce:
     ;}
     break;
 
-  case 262:
+  case 260:
 
 /* Line 1464 of yacc.c  */
-#line 3347 "Gmsh.y"
+#line 3411 "Gmsh.y"
     {
       if(!(yyvsp[(3) - (5)].l)){
 	List_T *tmp = Tree2List(GModel::current()->getGEOInternals()->Surfaces);
@@ -8185,7 +8237,7 @@ yyreduce:
           }
         }
         else{
-          for(GModel::fiter it = GModel::current()->firstFace(); 
+          for(GModel::fiter it = GModel::current()->firstFace();
               it != GModel::current()->lastFace(); it++){
             (*it)->meshAttributes.recombine = 1;
             (*it)->meshAttributes.recombineAngle = (yyvsp[(4) - (5)].i);
@@ -8217,10 +8269,10 @@ yyreduce:
     ;}
     break;
 
-  case 263:
+  case 261:
 
 /* Line 1464 of yacc.c  */
-#line 3390 "Gmsh.y"
+#line 3454 "Gmsh.y"
     {
       for(int i = 0; i < List_Nbr((yyvsp[(3) - (6)].l)); i++){
 	double d;
@@ -8242,10 +8294,10 @@ yyreduce:
     ;}
     break;
 
-  case 264:
+  case 262:
 
 /* Line 1464 of yacc.c  */
-#line 3415 "Gmsh.y"
+#line 3479 "Gmsh.y"
     {
       if(List_Nbr((yyvsp[(5) - (6)].l)) != List_Nbr((yyvsp[(3) - (6)].l))){
 	yymsg(0, "Number of master (%d) different from number of slave (%d) lines",
@@ -8260,7 +8312,7 @@ yyreduce:
           int j_slave  = (int)d_slave;
           Curve *c_slave = FindCurve(abs(j_slave));
           if(c_slave){
-            c_slave->meshMaster = j_master;	  
+            c_slave->meshMaster = j_master;
           }
           else{
             GEdge *ge = GModel::current()->getEdgeByTag(abs(j_slave));
@@ -8274,10 +8326,10 @@ yyreduce:
     ;}
     break;
 
-  case 265:
+  case 263:
 
 /* Line 1464 of yacc.c  */
-#line 3443 "Gmsh.y"
+#line 3507 "Gmsh.y"
     {
       if (List_Nbr((yyvsp[(5) - (12)].l)) != List_Nbr((yyvsp[(10) - (12)].l))){
 	yymsg(0, "Number of master surface edges (%d) different from number of "
@@ -8292,7 +8344,7 @@ yyreduce:
           for (int i = 0; i < List_Nbr((yyvsp[(5) - (12)].l)); i++){
             double dm, ds;
             List_Read((yyvsp[(5) - (12)].l), i, &ds);
-            List_Read((yyvsp[(10) - (12)].l), i, &dm);	  
+            List_Read((yyvsp[(10) - (12)].l), i, &dm);
             s_slave->edgeCounterparts[(int)ds] = (int)dm;
           }
         }
@@ -8315,11 +8367,11 @@ yyreduce:
     ;}
     break;
 
-  case 266:
+  case 264:
 
 /* Line 1464 of yacc.c  */
-#line 3486 "Gmsh.y"
-    { 
+#line 3550 "Gmsh.y"
+    {
       Surface *s = FindSurface((int)(yyvsp[(8) - (10)].d));
       if(s){
 	setSurfaceEmbeddedPoints(s, (yyvsp[(3) - (10)].l));
@@ -8343,10 +8395,10 @@ yyreduce:
     ;}
     break;
 
-  case 267:
+  case 265:
 
 /* Line 1464 of yacc.c  */
-#line 3509 "Gmsh.y"
+#line 3573 "Gmsh.y"
     {
       Surface *s = FindSurface((int)(yyvsp[(8) - (10)].d));
       if(s){
@@ -8371,36 +8423,36 @@ yyreduce:
     ;}
     break;
 
-  case 268:
+  case 266:
 
 /* Line 1464 of yacc.c  */
-#line 3532 "Gmsh.y"
+#line 3596 "Gmsh.y"
     {
     ;}
     break;
 
-  case 269:
+  case 267:
 
 /* Line 1464 of yacc.c  */
-#line 3535 "Gmsh.y"
+#line 3599 "Gmsh.y"
     {
     ;}
     break;
 
-  case 270:
+  case 268:
 
 /* Line 1464 of yacc.c  */
-#line 3544 "Gmsh.y"
-    { 
+#line 3608 "Gmsh.y"
+    {
       ReplaceAllDuplicates();
     ;}
     break;
 
-  case 271:
+  case 269:
 
 /* Line 1464 of yacc.c  */
-#line 3548 "Gmsh.y"
-    { 
+#line 3612 "Gmsh.y"
+    {
       if(!strcmp((yyvsp[(2) - (3)].c), "Geometry"))
         ReplaceAllDuplicates();
       else if(!strcmp((yyvsp[(2) - (3)].c), "Mesh"))
@@ -8411,11 +8463,11 @@ yyreduce:
     ;}
     break;
 
-  case 272:
+  case 270:
 
 /* Line 1464 of yacc.c  */
-#line 3558 "Gmsh.y"
-    { 
+#line 3622 "Gmsh.y"
+    {
       if(List_Nbr((yyvsp[(4) - (6)].l)) >= 2){
         double d;
         List_Read((yyvsp[(4) - (6)].l), 0, &d);
@@ -8446,680 +8498,664 @@ yyreduce:
     ;}
     break;
 
-  case 273:
+  case 271:
 
 /* Line 1464 of yacc.c  */
-#line 3595 "Gmsh.y"
+#line 3659 "Gmsh.y"
     {
-    
-    List_T *temp = ListOfDouble2ListOfInt((yyvsp[(7) - (11)].l));
-    std::vector<int> domain;
-    
-    for (int i = 0; i < List_Nbr(temp); i++){
-      int item = 0;
-      List_Read(temp, i, &item);
-      domain.push_back(item);
-    }
-    List_Delete((yyvsp[(7) - (11)].l));
-    List_Delete(temp);
-    
-    List_T *temp2 = ListOfDouble2ListOfInt((yyvsp[(9) - (11)].l));
-    std::vector<int> subdomain;
-    for (int i = 0; i < List_Nbr(temp2); i++){
-      int item = 0;
-      List_Read(temp2, i, &item);
-      subdomain.push_back(item);
-    }
-    List_Delete((yyvsp[(9) - (11)].l));
-    List_Delete(temp2);
-    
-    std::string fileName = "";
-    fileName = (yyvsp[(3) - (11)].c);
-    
-    #if defined(HAVE_KBIPACK)
-    Homology* homology = new Homology(GModel::current(), domain, subdomain);
-    homology->setFileName(fileName);
-    homology->computeRanks();
-    delete homology;
-    #else
-    yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
-    #endif
+      List_T *temp = ListOfDouble2ListOfInt((yyvsp[(7) - (11)].l));
+      std::vector<int> domain;
+      for (int i = 0; i < List_Nbr(temp); i++){
+        int item = 0;
+        List_Read(temp, i, &item);
+        domain.push_back(item);
+      }
+      List_Delete((yyvsp[(7) - (11)].l));
+      List_Delete(temp);
+      List_T *temp2 = ListOfDouble2ListOfInt((yyvsp[(9) - (11)].l));
+      std::vector<int> subdomain;
+      for (int i = 0; i < List_Nbr(temp2); i++){
+        int item = 0;
+        List_Read(temp2, i, &item);
+        subdomain.push_back(item);
+      }
+      List_Delete((yyvsp[(9) - (11)].l));
+      List_Delete(temp2);
+      std::string fileName = "";
+      fileName = (yyvsp[(3) - (11)].c);
+#if defined(HAVE_KBIPACK)
+      Homology* homology = new Homology(GModel::current(), domain, subdomain);
+      homology->setFileName(fileName);
+      homology->computeRanks();
+      delete homology;
+#else
+      yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
+#endif
     ;}
     break;
 
-  case 274:
+  case 272:
 
 /* Line 1464 of yacc.c  */
-#line 3632 "Gmsh.y"
+#line 3690 "Gmsh.y"
     {
-    List_T *temp = ListOfDouble2ListOfInt((yyvsp[(7) - (11)].l));
-    std::vector<int> domain;
-    
-    for (int i = 0; i < List_Nbr(temp); i++){
-      int item = 0;
-      List_Read(temp, i, &item);
-      domain.push_back(item);
-    }
-    List_Delete((yyvsp[(7) - (11)].l));
-    List_Delete(temp);
-    
-    List_T *temp2 = ListOfDouble2ListOfInt((yyvsp[(9) - (11)].l));
-    std::vector<int> subdomain;
-    for (int i = 0; i < List_Nbr(temp2); i++){
-      int item = 0;
-      List_Read(temp2, i, &item);
-      subdomain.push_back(item);
-    }
-    List_Delete((yyvsp[(9) - (11)].l));
-    List_Delete(temp2);
-    
-    std::string fileName = "";
-    fileName = (yyvsp[(3) - (11)].c);
-    
-    #if defined(HAVE_KBIPACK)
-    Homology* homology = new Homology(GModel::current(), domain, subdomain);
-    homology->setFileName(fileName);
-    homology->findGenerators();  
-    delete homology;
-    #else
-    yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
-    #endif
+      List_T *temp = ListOfDouble2ListOfInt((yyvsp[(7) - (11)].l));
+      std::vector<int> domain;
+      for (int i = 0; i < List_Nbr(temp); i++){
+        int item = 0;
+        List_Read(temp, i, &item);
+        domain.push_back(item);
+      }
+      List_Delete((yyvsp[(7) - (11)].l));
+      List_Delete(temp);
+      List_T *temp2 = ListOfDouble2ListOfInt((yyvsp[(9) - (11)].l));
+      std::vector<int> subdomain;
+      for (int i = 0; i < List_Nbr(temp2); i++){
+        int item = 0;
+        List_Read(temp2, i, &item);
+        subdomain.push_back(item);
+      }
+      List_Delete((yyvsp[(9) - (11)].l));
+      List_Delete(temp2);
+      std::string fileName = "";
+      fileName = (yyvsp[(3) - (11)].c);
+#if defined(HAVE_KBIPACK)
+      Homology* homology = new Homology(GModel::current(), domain, subdomain);
+      homology->setFileName(fileName);
+      homology->findGenerators();
+      delete homology;
+#else
+      yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
+#endif
     ;}
     break;
 
-  case 275:
+  case 273:
 
 /* Line 1464 of yacc.c  */
-#line 3668 "Gmsh.y"
+#line 3721 "Gmsh.y"
     {
-    List_T *temp = ListOfDouble2ListOfInt((yyvsp[(7) - (11)].l));
-    std::vector<int> domain;
-    
-    for (int i = 0; i < List_Nbr(temp); i++){
-      int item = 0;
-      List_Read(temp, i, &item);
-      domain.push_back(item);
-    }
-    List_Delete((yyvsp[(7) - (11)].l));
-    List_Delete(temp);
-    
-    List_T *temp2 = ListOfDouble2ListOfInt((yyvsp[(9) - (11)].l));
-    std::vector<int> subdomain;
-    for (int i = 0; i < List_Nbr(temp2); i++){
-      int item = 0;
-      List_Read(temp2, i, &item);
-      subdomain.push_back(item);
-    }
-    List_Delete((yyvsp[(9) - (11)].l));
-    List_Delete(temp2);
-    
-    std::string fileName = "";
-    fileName = (yyvsp[(3) - (11)].c);
-    
-    #if defined(HAVE_KBIPACK)
-    Homology* homology = new Homology(GModel::current(), domain, subdomain);
-    homology->setFileName(fileName);
-    homology->findDualGenerators();
-    delete homology;
-    #else
-    yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
-    #endif
+      List_T *temp = ListOfDouble2ListOfInt((yyvsp[(7) - (11)].l));
+      std::vector<int> domain;
+      for (int i = 0; i < List_Nbr(temp); i++){
+        int item = 0;
+        List_Read(temp, i, &item);
+        domain.push_back(item);
+      }
+      List_Delete((yyvsp[(7) - (11)].l));
+      List_Delete(temp);
+      List_T *temp2 = ListOfDouble2ListOfInt((yyvsp[(9) - (11)].l));
+      std::vector<int> subdomain;
+      for (int i = 0; i < List_Nbr(temp2); i++){
+        int item = 0;
+        List_Read(temp2, i, &item);
+        subdomain.push_back(item);
+      }
+      List_Delete((yyvsp[(9) - (11)].l));
+      List_Delete(temp2);
+      std::string fileName = "";
+      fileName = (yyvsp[(3) - (11)].c);
+#if defined(HAVE_KBIPACK)
+      Homology* homology = new Homology(GModel::current(), domain, subdomain);
+      homology->setFileName(fileName);
+      homology->findDualGenerators();
+      delete homology;
+#else
+      yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
+#endif
     ;}
     break;
 
-  case 276:
+  case 274:
 
 /* Line 1464 of yacc.c  */
-#line 3703 "Gmsh.y"
+#line 3752 "Gmsh.y"
     {
-    List_T *temp = ListOfDouble2ListOfInt((yyvsp[(7) - (11)].l));
-    std::vector<int> domain;
-    
-    for (int i = 0; i < List_Nbr(temp); i++){
-      int item = 0;
-      List_Read(temp, i, &item);
-      domain.push_back(item);
-    }
-    List_Delete((yyvsp[(7) - (11)].l));
-    List_Delete(temp);
-    
-    List_T *temp2 = ListOfDouble2ListOfInt((yyvsp[(9) - (11)].l));
-    std::vector<int> subdomain;
-    for (int i = 0; i < List_Nbr(temp2); i++){
-      int item = 0;
-      List_Read(temp2, i, &item);
-      subdomain.push_back(item);
-    }
-    List_Delete((yyvsp[(9) - (11)].l));
-    List_Delete(temp2);
-    
-    std::string fileName = "";
-    fileName = (yyvsp[(3) - (11)].c);
-    
-    #if defined(HAVE_KBIPACK)
-    Homology* homology = new Homology(GModel::current(), domain, subdomain);
-    homology->setFileName(fileName);
-    homology->findHomSequence();
-    delete homology;
-    #else
-    yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
-    #endif
+      List_T *temp = ListOfDouble2ListOfInt((yyvsp[(7) - (11)].l));
+      std::vector<int> domain;
+      for (int i = 0; i < List_Nbr(temp); i++){
+        int item = 0;
+        List_Read(temp, i, &item);
+        domain.push_back(item);
+      }
+      List_Delete((yyvsp[(7) - (11)].l));
+      List_Delete(temp);
+      List_T *temp2 = ListOfDouble2ListOfInt((yyvsp[(9) - (11)].l));
+      std::vector<int> subdomain;
+      for (int i = 0; i < List_Nbr(temp2); i++){
+        int item = 0;
+        List_Read(temp2, i, &item);
+        subdomain.push_back(item);
+      }
+      List_Delete((yyvsp[(9) - (11)].l));
+      List_Delete(temp2);
+      std::string fileName = "";
+      fileName = (yyvsp[(3) - (11)].c);
+#if defined(HAVE_KBIPACK)
+      Homology* homology = new Homology(GModel::current(), domain, subdomain);
+      homology->setFileName(fileName);
+      homology->findHomSequence();
+      delete homology;
+#else
+      yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
+#endif
     ;}
     break;
 
-  case 277:
+  case 275:
 
 /* Line 1464 of yacc.c  */
-#line 3742 "Gmsh.y"
+#line 3787 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (1)].d);           ;}
     break;
 
-  case 278:
+  case 276:
 
 /* Line 1464 of yacc.c  */
-#line 3743 "Gmsh.y"
+#line 3788 "Gmsh.y"
     { (yyval.d) = (yyvsp[(2) - (3)].d);           ;}
     break;
 
-  case 279:
+  case 277:
 
 /* Line 1464 of yacc.c  */
-#line 3744 "Gmsh.y"
+#line 3789 "Gmsh.y"
     { (yyval.d) = -(yyvsp[(2) - (2)].d);          ;}
     break;
 
-  case 280:
+  case 278:
 
 /* Line 1464 of yacc.c  */
-#line 3745 "Gmsh.y"
+#line 3790 "Gmsh.y"
     { (yyval.d) = (yyvsp[(2) - (2)].d);           ;}
     break;
 
-  case 281:
+  case 279:
 
 /* Line 1464 of yacc.c  */
-#line 3746 "Gmsh.y"
+#line 3791 "Gmsh.y"
     { (yyval.d) = !(yyvsp[(2) - (2)].d);          ;}
     break;
 
-  case 282:
+  case 280:
 
 /* Line 1464 of yacc.c  */
-#line 3747 "Gmsh.y"
+#line 3792 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (3)].d) - (yyvsp[(3) - (3)].d);      ;}
     break;
 
-  case 283:
+  case 281:
 
 /* Line 1464 of yacc.c  */
-#line 3748 "Gmsh.y"
+#line 3793 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (3)].d) + (yyvsp[(3) - (3)].d);      ;}
     break;
 
-  case 284:
+  case 282:
 
 /* Line 1464 of yacc.c  */
-#line 3749 "Gmsh.y"
+#line 3794 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (3)].d) * (yyvsp[(3) - (3)].d);      ;}
     break;
 
-  case 285:
+  case 283:
 
 /* Line 1464 of yacc.c  */
-#line 3751 "Gmsh.y"
-    { 
+#line 3796 "Gmsh.y"
+    {
       if(!(yyvsp[(3) - (3)].d))
 	yymsg(0, "Division by zero in '%g / %g'", (yyvsp[(1) - (3)].d), (yyvsp[(3) - (3)].d));
       else
-	(yyval.d) = (yyvsp[(1) - (3)].d) / (yyvsp[(3) - (3)].d);     
+	(yyval.d) = (yyvsp[(1) - (3)].d) / (yyvsp[(3) - (3)].d);
     ;}
     break;
 
-  case 286:
+  case 284:
 
 /* Line 1464 of yacc.c  */
-#line 3757 "Gmsh.y"
+#line 3802 "Gmsh.y"
     { (yyval.d) = (int)(yyvsp[(1) - (3)].d) % (int)(yyvsp[(3) - (3)].d);  ;}
     break;
 
-  case 287:
+  case 285:
 
 /* Line 1464 of yacc.c  */
-#line 3758 "Gmsh.y"
+#line 3803 "Gmsh.y"
     { (yyval.d) = pow((yyvsp[(1) - (3)].d), (yyvsp[(3) - (3)].d));  ;}
     break;
 
-  case 288:
+  case 286:
 
 /* Line 1464 of yacc.c  */
-#line 3759 "Gmsh.y"
+#line 3804 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (3)].d) < (yyvsp[(3) - (3)].d);      ;}
     break;
 
-  case 289:
+  case 287:
 
 /* Line 1464 of yacc.c  */
-#line 3760 "Gmsh.y"
+#line 3805 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (3)].d) > (yyvsp[(3) - (3)].d);      ;}
     break;
 
-  case 290:
+  case 288:
 
 /* Line 1464 of yacc.c  */
-#line 3761 "Gmsh.y"
+#line 3806 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (3)].d) <= (yyvsp[(3) - (3)].d);     ;}
     break;
 
-  case 291:
+  case 289:
 
 /* Line 1464 of yacc.c  */
-#line 3762 "Gmsh.y"
+#line 3807 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (3)].d) >= (yyvsp[(3) - (3)].d);     ;}
     break;
 
-  case 292:
+  case 290:
 
 /* Line 1464 of yacc.c  */
-#line 3763 "Gmsh.y"
+#line 3808 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (3)].d) == (yyvsp[(3) - (3)].d);     ;}
     break;
 
-  case 293:
+  case 291:
 
 /* Line 1464 of yacc.c  */
-#line 3764 "Gmsh.y"
+#line 3809 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (3)].d) != (yyvsp[(3) - (3)].d);     ;}
     break;
 
-  case 294:
+  case 292:
 
 /* Line 1464 of yacc.c  */
-#line 3765 "Gmsh.y"
+#line 3810 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (3)].d) && (yyvsp[(3) - (3)].d);     ;}
     break;
 
-  case 295:
+  case 293:
 
 /* Line 1464 of yacc.c  */
-#line 3766 "Gmsh.y"
+#line 3811 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (3)].d) || (yyvsp[(3) - (3)].d);     ;}
     break;
 
-  case 296:
+  case 294:
 
 /* Line 1464 of yacc.c  */
-#line 3767 "Gmsh.y"
+#line 3812 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (5)].d) ? (yyvsp[(3) - (5)].d) : (yyvsp[(5) - (5)].d); ;}
     break;
 
-  case 297:
+  case 295:
 
 /* Line 1464 of yacc.c  */
-#line 3768 "Gmsh.y"
+#line 3813 "Gmsh.y"
     { (yyval.d) = exp((yyvsp[(3) - (4)].d));      ;}
     break;
 
-  case 298:
+  case 296:
 
 /* Line 1464 of yacc.c  */
-#line 3769 "Gmsh.y"
+#line 3814 "Gmsh.y"
     { (yyval.d) = log((yyvsp[(3) - (4)].d));      ;}
     break;
 
-  case 299:
+  case 297:
 
 /* Line 1464 of yacc.c  */
-#line 3770 "Gmsh.y"
+#line 3815 "Gmsh.y"
     { (yyval.d) = log10((yyvsp[(3) - (4)].d));    ;}
     break;
 
-  case 300:
+  case 298:
 
 /* Line 1464 of yacc.c  */
-#line 3771 "Gmsh.y"
+#line 3816 "Gmsh.y"
     { (yyval.d) = sqrt((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 301:
+  case 299:
 
 /* Line 1464 of yacc.c  */
-#line 3772 "Gmsh.y"
+#line 3817 "Gmsh.y"
     { (yyval.d) = sin((yyvsp[(3) - (4)].d));      ;}
     break;
 
-  case 302:
+  case 300:
 
 /* Line 1464 of yacc.c  */
-#line 3773 "Gmsh.y"
+#line 3818 "Gmsh.y"
     { (yyval.d) = asin((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 303:
+  case 301:
 
 /* Line 1464 of yacc.c  */
-#line 3774 "Gmsh.y"
+#line 3819 "Gmsh.y"
     { (yyval.d) = cos((yyvsp[(3) - (4)].d));      ;}
     break;
 
-  case 304:
+  case 302:
 
 /* Line 1464 of yacc.c  */
-#line 3775 "Gmsh.y"
+#line 3820 "Gmsh.y"
     { (yyval.d) = acos((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 305:
+  case 303:
 
 /* Line 1464 of yacc.c  */
-#line 3776 "Gmsh.y"
+#line 3821 "Gmsh.y"
     { (yyval.d) = tan((yyvsp[(3) - (4)].d));      ;}
     break;
 
-  case 306:
+  case 304:
 
 /* Line 1464 of yacc.c  */
-#line 3777 "Gmsh.y"
+#line 3822 "Gmsh.y"
     { (yyval.d) = atan((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 307:
+  case 305:
 
 /* Line 1464 of yacc.c  */
-#line 3778 "Gmsh.y"
+#line 3823 "Gmsh.y"
     { (yyval.d) = atan2((yyvsp[(3) - (6)].d), (yyvsp[(5) - (6)].d));;}
     break;
 
-  case 308:
+  case 306:
 
 /* Line 1464 of yacc.c  */
-#line 3779 "Gmsh.y"
+#line 3824 "Gmsh.y"
     { (yyval.d) = sinh((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 309:
+  case 307:
 
 /* Line 1464 of yacc.c  */
-#line 3780 "Gmsh.y"
+#line 3825 "Gmsh.y"
     { (yyval.d) = cosh((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 310:
+  case 308:
 
 /* Line 1464 of yacc.c  */
-#line 3781 "Gmsh.y"
+#line 3826 "Gmsh.y"
     { (yyval.d) = tanh((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 311:
+  case 309:
 
 /* Line 1464 of yacc.c  */
-#line 3782 "Gmsh.y"
+#line 3827 "Gmsh.y"
     { (yyval.d) = fabs((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 312:
+  case 310:
 
 /* Line 1464 of yacc.c  */
-#line 3783 "Gmsh.y"
+#line 3828 "Gmsh.y"
     { (yyval.d) = floor((yyvsp[(3) - (4)].d));    ;}
     break;
 
-  case 313:
+  case 311:
 
 /* Line 1464 of yacc.c  */
-#line 3784 "Gmsh.y"
+#line 3829 "Gmsh.y"
     { (yyval.d) = ceil((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 314:
+  case 312:
 
 /* Line 1464 of yacc.c  */
-#line 3785 "Gmsh.y"
+#line 3830 "Gmsh.y"
     { (yyval.d) = fmod((yyvsp[(3) - (6)].d), (yyvsp[(5) - (6)].d)); ;}
     break;
 
-  case 315:
+  case 313:
 
 /* Line 1464 of yacc.c  */
-#line 3786 "Gmsh.y"
+#line 3831 "Gmsh.y"
     { (yyval.d) = fmod((yyvsp[(3) - (6)].d), (yyvsp[(5) - (6)].d)); ;}
     break;
 
-  case 316:
+  case 314:
 
 /* Line 1464 of yacc.c  */
-#line 3787 "Gmsh.y"
+#line 3832 "Gmsh.y"
     { (yyval.d) = sqrt((yyvsp[(3) - (6)].d) * (yyvsp[(3) - (6)].d) + (yyvsp[(5) - (6)].d) * (yyvsp[(5) - (6)].d)); ;}
     break;
 
-  case 317:
+  case 315:
 
 /* Line 1464 of yacc.c  */
-#line 3788 "Gmsh.y"
+#line 3833 "Gmsh.y"
     { (yyval.d) = (yyvsp[(3) - (4)].d) * (double)rand() / (double)RAND_MAX; ;}
     break;
 
-  case 318:
+  case 316:
 
 /* Line 1464 of yacc.c  */
-#line 3790 "Gmsh.y"
+#line 3835 "Gmsh.y"
     { (yyval.d) = exp((yyvsp[(3) - (4)].d));      ;}
     break;
 
-  case 319:
+  case 317:
 
 /* Line 1464 of yacc.c  */
-#line 3791 "Gmsh.y"
+#line 3836 "Gmsh.y"
     { (yyval.d) = log((yyvsp[(3) - (4)].d));      ;}
     break;
 
-  case 320:
+  case 318:
 
 /* Line 1464 of yacc.c  */
-#line 3792 "Gmsh.y"
+#line 3837 "Gmsh.y"
     { (yyval.d) = log10((yyvsp[(3) - (4)].d));    ;}
     break;
 
-  case 321:
+  case 319:
 
 /* Line 1464 of yacc.c  */
-#line 3793 "Gmsh.y"
+#line 3838 "Gmsh.y"
     { (yyval.d) = sqrt((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 322:
+  case 320:
 
 /* Line 1464 of yacc.c  */
-#line 3794 "Gmsh.y"
+#line 3839 "Gmsh.y"
     { (yyval.d) = sin((yyvsp[(3) - (4)].d));      ;}
     break;
 
-  case 323:
+  case 321:
 
 /* Line 1464 of yacc.c  */
-#line 3795 "Gmsh.y"
+#line 3840 "Gmsh.y"
     { (yyval.d) = asin((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 324:
+  case 322:
 
 /* Line 1464 of yacc.c  */
-#line 3796 "Gmsh.y"
+#line 3841 "Gmsh.y"
     { (yyval.d) = cos((yyvsp[(3) - (4)].d));      ;}
     break;
 
-  case 325:
+  case 323:
 
 /* Line 1464 of yacc.c  */
-#line 3797 "Gmsh.y"
+#line 3842 "Gmsh.y"
     { (yyval.d) = acos((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 326:
+  case 324:
 
 /* Line 1464 of yacc.c  */
-#line 3798 "Gmsh.y"
+#line 3843 "Gmsh.y"
     { (yyval.d) = tan((yyvsp[(3) - (4)].d));      ;}
     break;
 
-  case 327:
+  case 325:
 
 /* Line 1464 of yacc.c  */
-#line 3799 "Gmsh.y"
+#line 3844 "Gmsh.y"
     { (yyval.d) = atan((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 328:
+  case 326:
 
 /* Line 1464 of yacc.c  */
-#line 3800 "Gmsh.y"
+#line 3845 "Gmsh.y"
     { (yyval.d) = atan2((yyvsp[(3) - (6)].d), (yyvsp[(5) - (6)].d));;}
     break;
 
-  case 329:
+  case 327:
 
 /* Line 1464 of yacc.c  */
-#line 3801 "Gmsh.y"
+#line 3846 "Gmsh.y"
     { (yyval.d) = sinh((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 330:
+  case 328:
 
 /* Line 1464 of yacc.c  */
-#line 3802 "Gmsh.y"
+#line 3847 "Gmsh.y"
     { (yyval.d) = cosh((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 331:
+  case 329:
 
 /* Line 1464 of yacc.c  */
-#line 3803 "Gmsh.y"
+#line 3848 "Gmsh.y"
     { (yyval.d) = tanh((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 332:
+  case 330:
 
 /* Line 1464 of yacc.c  */
-#line 3804 "Gmsh.y"
+#line 3849 "Gmsh.y"
     { (yyval.d) = fabs((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 333:
+  case 331:
 
 /* Line 1464 of yacc.c  */
-#line 3805 "Gmsh.y"
+#line 3850 "Gmsh.y"
     { (yyval.d) = floor((yyvsp[(3) - (4)].d));    ;}
     break;
 
-  case 334:
+  case 332:
 
 /* Line 1464 of yacc.c  */
-#line 3806 "Gmsh.y"
+#line 3851 "Gmsh.y"
     { (yyval.d) = ceil((yyvsp[(3) - (4)].d));     ;}
     break;
 
-  case 335:
+  case 333:
 
 /* Line 1464 of yacc.c  */
-#line 3807 "Gmsh.y"
+#line 3852 "Gmsh.y"
     { (yyval.d) = fmod((yyvsp[(3) - (6)].d), (yyvsp[(5) - (6)].d)); ;}
     break;
 
-  case 336:
+  case 334:
 
 /* Line 1464 of yacc.c  */
-#line 3808 "Gmsh.y"
+#line 3853 "Gmsh.y"
     { (yyval.d) = fmod((yyvsp[(3) - (6)].d), (yyvsp[(5) - (6)].d)); ;}
     break;
 
-  case 337:
+  case 335:
 
 /* Line 1464 of yacc.c  */
-#line 3809 "Gmsh.y"
+#line 3854 "Gmsh.y"
     { (yyval.d) = sqrt((yyvsp[(3) - (6)].d) * (yyvsp[(3) - (6)].d) + (yyvsp[(5) - (6)].d) * (yyvsp[(5) - (6)].d)); ;}
     break;
 
-  case 338:
+  case 336:
 
 /* Line 1464 of yacc.c  */
-#line 3810 "Gmsh.y"
+#line 3855 "Gmsh.y"
     { (yyval.d) = (yyvsp[(3) - (4)].d) * (double)rand() / (double)RAND_MAX; ;}
     break;
 
-  case 339:
+  case 337:
 
 /* Line 1464 of yacc.c  */
-#line 3819 "Gmsh.y"
+#line 3864 "Gmsh.y"
     { (yyval.d) = (yyvsp[(1) - (1)].d); ;}
     break;
 
-  case 340:
+  case 338:
 
 /* Line 1464 of yacc.c  */
-#line 3820 "Gmsh.y"
+#line 3865 "Gmsh.y"
     { (yyval.d) = 3.141592653589793; ;}
     break;
 
-  case 341:
+  case 339:
 
 /* Line 1464 of yacc.c  */
-#line 3821 "Gmsh.y"
+#line 3866 "Gmsh.y"
     { (yyval.d) = Msg::GetCommRank(); ;}
     break;
 
-  case 342:
+  case 340:
 
 /* Line 1464 of yacc.c  */
-#line 3822 "Gmsh.y"
+#line 3867 "Gmsh.y"
     { (yyval.d) = Msg::GetCommSize(); ;}
     break;
 
-  case 343:
+  case 341:
 
 /* Line 1464 of yacc.c  */
-#line 3823 "Gmsh.y"
+#line 3868 "Gmsh.y"
     { (yyval.d) = GetGmshMajorVersion(); ;}
     break;
 
-  case 344:
+  case 342:
 
 /* Line 1464 of yacc.c  */
-#line 3824 "Gmsh.y"
+#line 3869 "Gmsh.y"
     { (yyval.d) = GetGmshMinorVersion(); ;}
     break;
 
-  case 345:
+  case 343:
 
 /* Line 1464 of yacc.c  */
-#line 3825 "Gmsh.y"
+#line 3870 "Gmsh.y"
     { (yyval.d) = GetGmshPatchVersion(); ;}
     break;
 
-  case 346:
+  case 344:
 
 /* Line 1464 of yacc.c  */
-#line 3830 "Gmsh.y"
+#line 3875 "Gmsh.y"
     {
       if(!gmsh_yysymbols.count((yyvsp[(1) - (1)].c))){
 	yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (1)].c));
 	(yyval.d) = 0.;
       }
       else{
-        if(gmsh_yysymbols[(yyvsp[(1) - (1)].c)].empty()){
+        gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (1)].c)]);
+        if(s.value.empty()){
           yymsg(0, "Uninitialized variable '%s'", (yyvsp[(1) - (1)].c));
           (yyval.d) = 0.;
         }
         else
-          (yyval.d) = gmsh_yysymbols[(yyvsp[(1) - (1)].c)][0];
+          (yyval.d) = s.value[0];
       }
       Free((yyvsp[(1) - (1)].c));
     ;}
     break;
 
-  case 347:
+  case 345:
 
 /* Line 1464 of yacc.c  */
-#line 3849 "Gmsh.y"
+#line 3895 "Gmsh.y"
     {
       char tmpstring[1024];
       sprintf(tmpstring, "%s_%d", (yyvsp[(1) - (5)].c), (int)(yyvsp[(4) - (5)].d)) ;
@@ -9128,117 +9164,127 @@ yyreduce:
 	(yyval.d) = 0.;
       }
       else{
-        if(gmsh_yysymbols[tmpstring].empty()){
+        gmsh_yysymbol &s(gmsh_yysymbols[tmpstring]);
+        if(s.value.empty()){
           yymsg(0, "Uninitialized variable '%s'", tmpstring);
           (yyval.d) = 0.;
         }
         else
-          (yyval.d) = gmsh_yysymbols[tmpstring][0];
+          (yyval.d) = s.value[0];
       }
       Free((yyvsp[(1) - (5)].c));
     ;}
     break;
 
-  case 348:
+  case 346:
 
 /* Line 1464 of yacc.c  */
-#line 3867 "Gmsh.y"
+#line 3914 "Gmsh.y"
     {
       int index = (int)(yyvsp[(3) - (4)].d);
       if(!gmsh_yysymbols.count((yyvsp[(1) - (4)].c))){
 	yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (4)].c));
 	(yyval.d) = 0.;
       }
-      else if((int)gmsh_yysymbols[(yyvsp[(1) - (4)].c)].size() < index + 1){
-	yymsg(0, "Uninitialized variable '%s[%d]'", (yyvsp[(1) - (4)].c), index);
-	(yyval.d) = 0.;
+      else{
+        gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (4)].c)]);
+        if((int)s.value.size() < index + 1){
+          yymsg(0, "Uninitialized variable '%s[%d]'", (yyvsp[(1) - (4)].c), index);
+          (yyval.d) = 0.;
+        }
+        else
+          (yyval.d) = s.value[index];
       }
-      else
-	(yyval.d) = gmsh_yysymbols[(yyvsp[(1) - (4)].c)][index];
       Free((yyvsp[(1) - (4)].c));
     ;}
     break;
 
-  case 349:
+  case 347:
 
 /* Line 1464 of yacc.c  */
-#line 3882 "Gmsh.y"
+#line 3932 "Gmsh.y"
     {
       if(!gmsh_yysymbols.count((yyvsp[(2) - (4)].c))){
 	yymsg(0, "Unknown variable '%s'", (yyvsp[(2) - (4)].c));
 	(yyval.d) = 0.;
       }
-      else
-	(yyval.d) = gmsh_yysymbols[(yyvsp[(2) - (4)].c)].size();
+      else{
+        gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(2) - (4)].c)]);
+	(yyval.d) = s.value.size();
+      }
       Free((yyvsp[(2) - (4)].c));
     ;}
     break;
 
-  case 350:
+  case 348:
 
 /* Line 1464 of yacc.c  */
-#line 3892 "Gmsh.y"
+#line 3944 "Gmsh.y"
     {
       if(!gmsh_yysymbols.count((yyvsp[(1) - (2)].c))){
 	yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (2)].c));
 	(yyval.d) = 0.;
       }
       else{
-        if(gmsh_yysymbols[(yyvsp[(1) - (2)].c)].empty()){
+        gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (2)].c)]);
+        if(s.value.empty()){
           yymsg(0, "Uninitialized variable '%s'", (yyvsp[(1) - (2)].c));
           (yyval.d) = 0.;
         }
         else
-          (yyval.d) = (gmsh_yysymbols[(yyvsp[(1) - (2)].c)][0] += (yyvsp[(2) - (2)].i));
+          (yyval.d) = (s.value[0] += (yyvsp[(2) - (2)].i));
       }
       Free((yyvsp[(1) - (2)].c));
     ;}
     break;
 
-  case 351:
+  case 349:
 
 /* Line 1464 of yacc.c  */
-#line 3908 "Gmsh.y"
+#line 3961 "Gmsh.y"
     {
       int index = (int)(yyvsp[(3) - (5)].d);
       if(!gmsh_yysymbols.count((yyvsp[(1) - (5)].c))){
 	yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (5)].c));
 	(yyval.d) = 0.;
       }
-      else if((int)gmsh_yysymbols[(yyvsp[(1) - (5)].c)].size() < index + 1){
-	yymsg(0, "Uninitialized variable '%s[%d]'", (yyvsp[(1) - (5)].c), index);
-	(yyval.d) = 0.;
+      else{
+        gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (5)].c)]);
+        if((int)s.value.size() < index + 1){
+          yymsg(0, "Uninitialized variable '%s[%d]'", (yyvsp[(1) - (5)].c), index);
+          (yyval.d) = 0.;
+        }
+        else
+          (yyval.d) = (s.value[index] += (yyvsp[(5) - (5)].i));
       }
-      else
-	(yyval.d) = (gmsh_yysymbols[(yyvsp[(1) - (5)].c)][index] += (yyvsp[(5) - (5)].i));
       Free((yyvsp[(1) - (5)].c));
     ;}
     break;
 
-  case 352:
+  case 350:
 
 /* Line 1464 of yacc.c  */
-#line 3926 "Gmsh.y"
+#line 3982 "Gmsh.y"
     {
       NumberOption(GMSH_GET, (yyvsp[(1) - (3)].c), 0, (yyvsp[(3) - (3)].c), (yyval.d));
       Free((yyvsp[(1) - (3)].c)); Free((yyvsp[(3) - (3)].c));
     ;}
     break;
 
-  case 353:
+  case 351:
 
 /* Line 1464 of yacc.c  */
-#line 3931 "Gmsh.y"
+#line 3987 "Gmsh.y"
     {
       NumberOption(GMSH_GET, (yyvsp[(1) - (6)].c), (int)(yyvsp[(3) - (6)].d), (yyvsp[(6) - (6)].c), (yyval.d));
       Free((yyvsp[(1) - (6)].c)); Free((yyvsp[(6) - (6)].c));
     ;}
     break;
 
-  case 354:
+  case 352:
 
 /* Line 1464 of yacc.c  */
-#line 3936 "Gmsh.y"
+#line 3992 "Gmsh.y"
     {
       double d = 0.;
       if(NumberOption(GMSH_GET, (yyvsp[(1) - (4)].c), 0, (yyvsp[(3) - (4)].c), d)){
@@ -9250,10 +9296,10 @@ yyreduce:
     ;}
     break;
 
-  case 355:
+  case 353:
 
 /* Line 1464 of yacc.c  */
-#line 3946 "Gmsh.y"
+#line 4002 "Gmsh.y"
     {
       double d = 0.;
       if(NumberOption(GMSH_GET, (yyvsp[(1) - (7)].c), (int)(yyvsp[(3) - (7)].d), (yyvsp[(6) - (7)].c), d)){
@@ -9265,158 +9311,158 @@ yyreduce:
     ;}
     break;
 
-  case 356:
+  case 354:
 
 /* Line 1464 of yacc.c  */
-#line 3956 "Gmsh.y"
-    { 
+#line 4012 "Gmsh.y"
+    {
       (yyval.d) = Msg::GetValue((yyvsp[(3) - (6)].c), (yyvsp[(5) - (6)].d));
       Free((yyvsp[(3) - (6)].c));
     ;}
     break;
 
-  case 357:
+  case 355:
 
 /* Line 1464 of yacc.c  */
-#line 3964 "Gmsh.y"
+#line 4020 "Gmsh.y"
     {
       memcpy((yyval.v), (yyvsp[(1) - (1)].v), 5*sizeof(double));
     ;}
     break;
 
-  case 358:
+  case 356:
 
 /* Line 1464 of yacc.c  */
-#line 3968 "Gmsh.y"
+#line 4024 "Gmsh.y"
     {
       for(int i = 0; i < 5; i++) (yyval.v)[i] = -(yyvsp[(2) - (2)].v)[i];
     ;}
     break;
 
-  case 359:
+  case 357:
 
 /* Line 1464 of yacc.c  */
-#line 3972 "Gmsh.y"
-    { 
+#line 4028 "Gmsh.y"
+    {
       for(int i = 0; i < 5; i++) (yyval.v)[i] = (yyvsp[(2) - (2)].v)[i];
     ;}
     break;
 
-  case 360:
+  case 358:
 
 /* Line 1464 of yacc.c  */
-#line 3976 "Gmsh.y"
-    { 
+#line 4032 "Gmsh.y"
+    {
       for(int i = 0; i < 5; i++) (yyval.v)[i] = (yyvsp[(1) - (3)].v)[i] - (yyvsp[(3) - (3)].v)[i];
     ;}
     break;
 
-  case 361:
+  case 359:
 
 /* Line 1464 of yacc.c  */
-#line 3980 "Gmsh.y"
+#line 4036 "Gmsh.y"
     {
       for(int i = 0; i < 5; i++) (yyval.v)[i] = (yyvsp[(1) - (3)].v)[i] + (yyvsp[(3) - (3)].v)[i];
     ;}
     break;
 
-  case 362:
+  case 360:
 
 /* Line 1464 of yacc.c  */
-#line 3987 "Gmsh.y"
-    { 
+#line 4043 "Gmsh.y"
+    {
       (yyval.v)[0] = (yyvsp[(2) - (11)].d);  (yyval.v)[1] = (yyvsp[(4) - (11)].d);  (yyval.v)[2] = (yyvsp[(6) - (11)].d);  (yyval.v)[3] = (yyvsp[(8) - (11)].d); (yyval.v)[4] = (yyvsp[(10) - (11)].d);
     ;}
     break;
 
-  case 363:
+  case 361:
 
 /* Line 1464 of yacc.c  */
-#line 3991 "Gmsh.y"
-    { 
+#line 4047 "Gmsh.y"
+    {
       (yyval.v)[0] = (yyvsp[(2) - (9)].d);  (yyval.v)[1] = (yyvsp[(4) - (9)].d);  (yyval.v)[2] = (yyvsp[(6) - (9)].d);  (yyval.v)[3] = (yyvsp[(8) - (9)].d); (yyval.v)[4] = 1.0;
     ;}
     break;
 
-  case 364:
+  case 362:
 
 /* Line 1464 of yacc.c  */
-#line 3995 "Gmsh.y"
+#line 4051 "Gmsh.y"
     {
       (yyval.v)[0] = (yyvsp[(2) - (7)].d);  (yyval.v)[1] = (yyvsp[(4) - (7)].d);  (yyval.v)[2] = (yyvsp[(6) - (7)].d);  (yyval.v)[3] = 0.0; (yyval.v)[4] = 1.0;
     ;}
     break;
 
-  case 365:
+  case 363:
 
 /* Line 1464 of yacc.c  */
-#line 3999 "Gmsh.y"
+#line 4055 "Gmsh.y"
     {
       (yyval.v)[0] = (yyvsp[(2) - (7)].d);  (yyval.v)[1] = (yyvsp[(4) - (7)].d);  (yyval.v)[2] = (yyvsp[(6) - (7)].d);  (yyval.v)[3] = 0.0; (yyval.v)[4] = 1.0;
     ;}
     break;
 
-  case 366:
+  case 364:
 
 /* Line 1464 of yacc.c  */
-#line 4006 "Gmsh.y"
+#line 4062 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(List_T*));
       List_Add((yyval.l), &((yyvsp[(1) - (1)].l)));
     ;}
     break;
 
-  case 367:
+  case 365:
 
 /* Line 1464 of yacc.c  */
-#line 4011 "Gmsh.y"
+#line 4067 "Gmsh.y"
     {
       List_Add((yyval.l), &((yyvsp[(3) - (3)].l)));
     ;}
     break;
 
-  case 368:
+  case 366:
 
 /* Line 1464 of yacc.c  */
-#line 4018 "Gmsh.y"
+#line 4074 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(double));
       List_Add((yyval.l), &((yyvsp[(1) - (1)].d)));
     ;}
     break;
 
-  case 369:
+  case 367:
 
 /* Line 1464 of yacc.c  */
-#line 4023 "Gmsh.y"
+#line 4079 "Gmsh.y"
     {
       (yyval.l) = (yyvsp[(1) - (1)].l);
     ;}
     break;
 
-  case 370:
+  case 368:
 
 /* Line 1464 of yacc.c  */
-#line 4027 "Gmsh.y"
+#line 4083 "Gmsh.y"
     {
       // creates an empty list
       (yyval.l) = List_Create(2, 1, sizeof(double));
     ;}
     break;
 
-  case 371:
+  case 369:
 
 /* Line 1464 of yacc.c  */
-#line 4032 "Gmsh.y"
+#line 4088 "Gmsh.y"
     {
       (yyval.l) = (yyvsp[(2) - (3)].l);
     ;}
     break;
 
-  case 372:
+  case 370:
 
 /* Line 1464 of yacc.c  */
-#line 4036 "Gmsh.y"
+#line 4092 "Gmsh.y"
     {
       (yyval.l) = (yyvsp[(3) - (4)].l);
       for(int i = 0; i < List_Nbr((yyval.l)); i++){
@@ -9426,10 +9472,10 @@ yyreduce:
     ;}
     break;
 
-  case 373:
+  case 371:
 
 /* Line 1464 of yacc.c  */
-#line 4044 "Gmsh.y"
+#line 4100 "Gmsh.y"
     {
       (yyval.l) = (yyvsp[(4) - (5)].l);
       for(int i = 0; i < List_Nbr((yyval.l)); i++){
@@ -9439,19 +9485,19 @@ yyreduce:
     ;}
     break;
 
-  case 374:
+  case 372:
 
 /* Line 1464 of yacc.c  */
-#line 4055 "Gmsh.y"
-    { 
-      (yyval.l) = (yyvsp[(1) - (1)].l); 
+#line 4111 "Gmsh.y"
+    {
+      (yyval.l) = (yyvsp[(1) - (1)].l);
     ;}
     break;
 
-  case 375:
+  case 373:
 
 /* Line 1464 of yacc.c  */
-#line 4059 "Gmsh.y"
+#line 4115 "Gmsh.y"
     {
       if(!strcmp((yyvsp[(1) - (1)].c), "*") || !strcmp((yyvsp[(1) - (1)].c), "all"))
         (yyval.l) = 0;
@@ -9462,10 +9508,10 @@ yyreduce:
     ;}
     break;
 
-  case 376:
+  case 374:
 
 /* Line 1464 of yacc.c  */
-#line 4071 "Gmsh.y"
+#line 4127 "Gmsh.y"
     {
       (yyval.l) = (yyvsp[(2) - (2)].l);
       for(int i = 0; i < List_Nbr((yyval.l)); i++){
@@ -9475,10 +9521,10 @@ yyreduce:
     ;}
     break;
 
-  case 377:
+  case 375:
 
 /* Line 1464 of yacc.c  */
-#line 4079 "Gmsh.y"
+#line 4135 "Gmsh.y"
     {
       (yyval.l) = (yyvsp[(3) - (3)].l);
       for(int i = 0; i < List_Nbr((yyval.l)); i++){
@@ -9488,24 +9534,24 @@ yyreduce:
     ;}
     break;
 
-  case 378:
+  case 376:
 
 /* Line 1464 of yacc.c  */
-#line 4087 "Gmsh.y"
-    { 
-      (yyval.l) = List_Create(2, 1, sizeof(double)); 
-      for(double d = (yyvsp[(1) - (3)].d); ((yyvsp[(1) - (3)].d) < (yyvsp[(3) - (3)].d)) ? (d <= (yyvsp[(3) - (3)].d)) : (d >= (yyvsp[(3) - (3)].d)); 
-          ((yyvsp[(1) - (3)].d) < (yyvsp[(3) - (3)].d)) ? (d += 1.) : (d -= 1.)) 
+#line 4143 "Gmsh.y"
+    {
+      (yyval.l) = List_Create(2, 1, sizeof(double));
+      for(double d = (yyvsp[(1) - (3)].d); ((yyvsp[(1) - (3)].d) < (yyvsp[(3) - (3)].d)) ? (d <= (yyvsp[(3) - (3)].d)) : (d >= (yyvsp[(3) - (3)].d));
+          ((yyvsp[(1) - (3)].d) < (yyvsp[(3) - (3)].d)) ? (d += 1.) : (d -= 1.))
 	List_Add((yyval.l), &d);
     ;}
     break;
 
-  case 379:
+  case 377:
 
 /* Line 1464 of yacc.c  */
-#line 4094 "Gmsh.y"
+#line 4150 "Gmsh.y"
     {
-      (yyval.l) = List_Create(2, 1, sizeof(double)); 
+      (yyval.l) = List_Create(2, 1, sizeof(double));
       if(!(yyvsp[(5) - (5)].d) || ((yyvsp[(1) - (5)].d) < (yyvsp[(3) - (5)].d) && (yyvsp[(5) - (5)].d) < 0) || ((yyvsp[(1) - (5)].d) > (yyvsp[(3) - (5)].d) && (yyvsp[(5) - (5)].d) > 0)){
         yymsg(0, "Wrong increment in '%g:%g:%g'", (yyvsp[(1) - (5)].d), (yyvsp[(3) - (5)].d), (yyvsp[(5) - (5)].d));
 	List_Add((yyval.l), &((yyvsp[(1) - (5)].d)));
@@ -9516,16 +9562,16 @@ yyreduce:
    ;}
     break;
 
-  case 380:
+  case 378:
 
 /* Line 1464 of yacc.c  */
-#line 4105 "Gmsh.y"
+#line 4161 "Gmsh.y"
     {
       // Returns the coordinates of a point and fills a list with it.
       // This allows to ensure e.g. that relative point positions are
       // always conserved
       Vertex *v = FindPoint((int)(yyvsp[(3) - (4)].d));
-      (yyval.l) = List_Create(3, 1, sizeof(double));      
+      (yyval.l) = List_Create(3, 1, sizeof(double));
       if(!v) {
 	yymsg(0, "Unknown point '%d'", (int)(yyvsp[(3) - (4)].d));
 	double d = 0.0;
@@ -9541,46 +9587,46 @@ yyreduce:
     ;}
     break;
 
-  case 381:
+  case 379:
 
 /* Line 1464 of yacc.c  */
-#line 4125 "Gmsh.y"
+#line 4181 "Gmsh.y"
     {
       (yyval.l) = GetAllEntityNumbers(0);
     ;}
     break;
 
-  case 382:
+  case 380:
 
 /* Line 1464 of yacc.c  */
-#line 4129 "Gmsh.y"
+#line 4185 "Gmsh.y"
     {
       (yyval.l) = GetAllEntityNumbers(1);
     ;}
     break;
 
-  case 383:
+  case 381:
 
 /* Line 1464 of yacc.c  */
-#line 4133 "Gmsh.y"
+#line 4189 "Gmsh.y"
     {
       (yyval.l) = GetAllEntityNumbers(2);
     ;}
     break;
 
-  case 384:
+  case 382:
 
 /* Line 1464 of yacc.c  */
-#line 4137 "Gmsh.y"
+#line 4193 "Gmsh.y"
     {
       (yyval.l) = GetAllEntityNumbers(3);
     ;}
     break;
 
-  case 385:
+  case 383:
 
 /* Line 1464 of yacc.c  */
-#line 4141 "Gmsh.y"
+#line 4197 "Gmsh.y"
     {
       (yyval.l) = List_Create(List_Nbr((yyvsp[(1) - (1)].l)), 1, sizeof(double));
       for(int i = 0; i < List_Nbr((yyvsp[(1) - (1)].l)); i++){
@@ -9592,10 +9638,10 @@ yyreduce:
     ;}
     break;
 
-  case 386:
+  case 384:
 
 /* Line 1464 of yacc.c  */
-#line 4151 "Gmsh.y"
+#line 4207 "Gmsh.y"
     {
       (yyval.l) = List_Create(List_Nbr((yyvsp[(1) - (1)].l)), 1, sizeof(double));
       for(int i = 0; i < List_Nbr((yyvsp[(1) - (1)].l)); i++){
@@ -9607,36 +9653,56 @@ yyreduce:
     ;}
     break;
 
-  case 387:
+  case 385:
 
 /* Line 1464 of yacc.c  */
-#line 4161 "Gmsh.y"
+#line 4217 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(double));
       if(!gmsh_yysymbols.count((yyvsp[(1) - (3)].c)))
 	yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (3)].c));
-      else
-	for(unsigned int i = 0; i < gmsh_yysymbols[(yyvsp[(1) - (3)].c)].size(); i++)
-	  List_Add((yyval.l), &gmsh_yysymbols[(yyvsp[(1) - (3)].c)][i]);
+      else{
+        gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (3)].c)]);
+	for(unsigned int i = 0; i < s.value.size(); i++)
+	  List_Add((yyval.l), &s.value[i]);
+      }
       Free((yyvsp[(1) - (3)].c));
     ;}
     break;
 
-  case 388:
+  case 386:
+
+/* Line 1464 of yacc.c  */
+#line 4229 "Gmsh.y"
+    {
+      (yyval.l) = List_Create(2, 1, sizeof(double));
+      if(!gmsh_yysymbols.count((yyvsp[(3) - (4)].c)))
+	yymsg(0, "Unknown variable '%s'", (yyvsp[(3) - (4)].c));
+      else{
+        gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(3) - (4)].c)]);
+	for(unsigned int i = 0; i < s.value.size(); i++)
+	  List_Add((yyval.l), &s.value[i]);
+      }
+      Free((yyvsp[(3) - (4)].c));
+    ;}
+    break;
+
+  case 387:
 
 /* Line 1464 of yacc.c  */
-#line 4171 "Gmsh.y"
+#line 4241 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(double));
       if(!gmsh_yysymbols.count((yyvsp[(1) - (6)].c)))
 	yymsg(0, "Unknown variable '%s'", (yyvsp[(1) - (6)].c));
       else{
+        gmsh_yysymbol &s(gmsh_yysymbols[(yyvsp[(1) - (6)].c)]);
 	for(int i = 0; i < List_Nbr((yyvsp[(4) - (6)].l)); i++){
 	  int index = (int)(*(double*)List_Pointer_Fast((yyvsp[(4) - (6)].l), i));
-	  if((int)gmsh_yysymbols[(yyvsp[(1) - (6)].c)].size() < index + 1)
+	  if((int)s.value.size() < index + 1)
 	    yymsg(0, "Uninitialized variable '%s[%d]'", (yyvsp[(1) - (6)].c), index);
 	  else
-	    List_Add((yyval.l), &gmsh_yysymbols[(yyvsp[(1) - (6)].c)][index]);
+	    List_Add((yyval.l), &s.value[index]);
 	}
       }
       Free((yyvsp[(1) - (6)].c));
@@ -9644,38 +9710,38 @@ yyreduce:
     ;}
     break;
 
-  case 389:
+  case 388:
 
 /* Line 1464 of yacc.c  */
-#line 4191 "Gmsh.y"
+#line 4262 "Gmsh.y"
     {
       (yyval.l) = List_Create(2, 1, sizeof(double));
       List_Add((yyval.l), &((yyvsp[(1) - (1)].d)));
     ;}
     break;
 
-  case 390:
+  case 389:
 
 /* Line 1464 of yacc.c  */
-#line 4196 "Gmsh.y"
+#line 4267 "Gmsh.y"
     {
       (yyval.l) = (yyvsp[(1) - (1)].l);
     ;}
     break;
 
-  case 391:
+  case 390:
 
 /* Line 1464 of yacc.c  */
-#line 4200 "Gmsh.y"
+#line 4271 "Gmsh.y"
     {
       List_Add((yyval.l), &((yyvsp[(3) - (3)].d)));
     ;}
     break;
 
-  case 392:
+  case 391:
 
 /* Line 1464 of yacc.c  */
-#line 4204 "Gmsh.y"
+#line 4275 "Gmsh.y"
     {
       for(int i = 0; i < List_Nbr((yyvsp[(3) - (3)].l)); i++){
 	double d;
@@ -9686,28 +9752,28 @@ yyreduce:
     ;}
     break;
 
-  case 393:
+  case 392:
 
 /* Line 1464 of yacc.c  */
-#line 4216 "Gmsh.y"
+#line 4287 "Gmsh.y"
     {
       (yyval.u) = CTX::instance()->packColor((int)(yyvsp[(2) - (9)].d), (int)(yyvsp[(4) - (9)].d), (int)(yyvsp[(6) - (9)].d), (int)(yyvsp[(8) - (9)].d));
     ;}
     break;
 
-  case 394:
+  case 393:
 
 /* Line 1464 of yacc.c  */
-#line 4220 "Gmsh.y"
+#line 4291 "Gmsh.y"
     {
       (yyval.u) = CTX::instance()->packColor((int)(yyvsp[(2) - (7)].d), (int)(yyvsp[(4) - (7)].d), (int)(yyvsp[(6) - (7)].d), 255);
     ;}
     break;
 
-  case 395:
+  case 394:
 
 /* Line 1464 of yacc.c  */
-#line 4232 "Gmsh.y"
+#line 4303 "Gmsh.y"
     {
       int flag;
       (yyval.u) = GetColorForString(ColorString, -1, (yyvsp[(1) - (1)].c), &flag);
@@ -9716,10 +9782,10 @@ yyreduce:
     ;}
     break;
 
-  case 396:
+  case 395:
 
 /* Line 1464 of yacc.c  */
-#line 4239 "Gmsh.y"
+#line 4310 "Gmsh.y"
     {
       unsigned int val = 0;
       ColorOption(GMSH_GET, (yyvsp[(1) - (5)].c), 0, (yyvsp[(5) - (5)].c), val);
@@ -9728,64 +9794,64 @@ yyreduce:
     ;}
     break;
 
-  case 397:
+  case 396:
 
 /* Line 1464 of yacc.c  */
-#line 4249 "Gmsh.y"
+#line 4320 "Gmsh.y"
     {
       (yyval.l) = (yyvsp[(2) - (3)].l);
     ;}
     break;
 
-  case 398:
+  case 397:
 
 /* Line 1464 of yacc.c  */
-#line 4253 "Gmsh.y"
+#line 4324 "Gmsh.y"
     {
       (yyval.l) = List_Create(256, 10, sizeof(unsigned int));
       GmshColorTable *ct = GetColorTable((int)(yyvsp[(3) - (6)].d));
       if(!ct)
 	yymsg(0, "View[%d] does not exist", (int)(yyvsp[(3) - (6)].d));
       else{
-	for(int i = 0; i < ct->size; i++) 
+	for(int i = 0; i < ct->size; i++)
 	  List_Add((yyval.l), &ct->table[i]);
       }
       Free((yyvsp[(1) - (6)].c));
     ;}
     break;
 
-  case 399:
+  case 398:
 
 /* Line 1464 of yacc.c  */
-#line 4268 "Gmsh.y"
+#line 4339 "Gmsh.y"
     {
       (yyval.l) = List_Create(256, 10, sizeof(unsigned int));
       List_Add((yyval.l), &((yyvsp[(1) - (1)].u)));
     ;}
     break;
 
-  case 400:
+  case 399:
 
 /* Line 1464 of yacc.c  */
-#line 4273 "Gmsh.y"
+#line 4344 "Gmsh.y"
     {
       List_Add((yyval.l), &((yyvsp[(3) - (3)].u)));
     ;}
     break;
 
-  case 401:
+  case 400:
 
 /* Line 1464 of yacc.c  */
-#line 4280 "Gmsh.y"
+#line 4351 "Gmsh.y"
     {
       (yyval.c) = (yyvsp[(1) - (1)].c);
     ;}
     break;
 
-  case 402:
+  case 401:
 
 /* Line 1464 of yacc.c  */
-#line 4284 "Gmsh.y"
+#line 4355 "Gmsh.y"
     {
       if(!gmsh_yystringsymbols.count((yyvsp[(1) - (1)].c))){
 	yymsg(0, "Unknown string variable '%s'", (yyvsp[(1) - (1)].c));
@@ -9800,11 +9866,11 @@ yyreduce:
     ;}
     break;
 
-  case 403:
+  case 402:
 
 /* Line 1464 of yacc.c  */
-#line 4297 "Gmsh.y"
-    { 
+#line 4368 "Gmsh.y"
+    {
       std::string out;
       StringOption(GMSH_GET, (yyvsp[(1) - (3)].c), 0, (yyvsp[(3) - (3)].c), out);
       (yyval.c) = (char*)Malloc((out.size() + 1) * sizeof(char));
@@ -9813,11 +9879,11 @@ yyreduce:
     ;}
     break;
 
-  case 404:
+  case 403:
 
 /* Line 1464 of yacc.c  */
-#line 4305 "Gmsh.y"
-    { 
+#line 4376 "Gmsh.y"
+    {
       std::string out;
       StringOption(GMSH_GET, (yyvsp[(1) - (6)].c), (int)(yyvsp[(3) - (6)].d), (yyvsp[(6) - (6)].c), out);
       (yyval.c) = (char*)Malloc((out.size() + 1) * sizeof(char));
@@ -9826,19 +9892,19 @@ yyreduce:
     ;}
     break;
 
-  case 405:
+  case 404:
 
 /* Line 1464 of yacc.c  */
-#line 4316 "Gmsh.y"
+#line 4387 "Gmsh.y"
     {
       (yyval.c) = (yyvsp[(1) - (1)].c);
     ;}
     break;
 
-  case 406:
+  case 405:
 
 /* Line 1464 of yacc.c  */
-#line 4320 "Gmsh.y"
+#line 4391 "Gmsh.y"
     {
       (yyval.c) = (char *)Malloc(32 * sizeof(char));
       time_t now;
@@ -9848,11 +9914,11 @@ yyreduce:
     ;}
     break;
 
-  case 407:
+  case 406:
 
 /* Line 1464 of yacc.c  */
-#line 4328 "Gmsh.y"
-    { 
+#line 4399 "Gmsh.y"
+    {
       const char *env = GetEnvironmentVar((yyvsp[(3) - (4)].c));
       if(!env) env = "";
       (yyval.c) = (char *)Malloc((sizeof(env) + 1) * sizeof(char));
@@ -9861,11 +9927,11 @@ yyreduce:
     ;}
     break;
 
-  case 408:
+  case 407:
 
 /* Line 1464 of yacc.c  */
-#line 4336 "Gmsh.y"
-    { 
+#line 4407 "Gmsh.y"
+    {
       std::string s = Msg::GetString((yyvsp[(3) - (6)].c), (yyvsp[(5) - (6)].c));
       (yyval.c) = (char *)Malloc((s.size() + 1) * sizeof(char));
       strcpy((yyval.c), s.c_str());
@@ -9874,10 +9940,10 @@ yyreduce:
     ;}
     break;
 
-  case 409:
+  case 408:
 
 /* Line 1464 of yacc.c  */
-#line 4344 "Gmsh.y"
+#line 4415 "Gmsh.y"
     {
       (yyval.c) = (char *)Malloc((strlen((yyvsp[(3) - (6)].c)) + strlen((yyvsp[(5) - (6)].c)) + 1) * sizeof(char));
       strcpy((yyval.c), (yyvsp[(3) - (6)].c));
@@ -9887,10 +9953,10 @@ yyreduce:
     ;}
     break;
 
-  case 410:
+  case 409:
 
 /* Line 1464 of yacc.c  */
-#line 4352 "Gmsh.y"
+#line 4423 "Gmsh.y"
     {
       (yyval.c) = (char *)Malloc((strlen((yyvsp[(3) - (4)].c)) + 1) * sizeof(char));
       int i;
@@ -9906,10 +9972,10 @@ yyreduce:
     ;}
     break;
 
-  case 411:
+  case 410:
 
 /* Line 1464 of yacc.c  */
-#line 4366 "Gmsh.y"
+#line 4437 "Gmsh.y"
     {
       (yyval.c) = (char *)Malloc((strlen((yyvsp[(3) - (4)].c)) + 1) * sizeof(char));
       int i;
@@ -9925,19 +9991,19 @@ yyreduce:
     ;}
     break;
 
-  case 412:
+  case 411:
 
 /* Line 1464 of yacc.c  */
-#line 4380 "Gmsh.y"
+#line 4451 "Gmsh.y"
     {
       (yyval.c) = (yyvsp[(3) - (4)].c);
     ;}
     break;
 
-  case 413:
+  case 412:
 
 /* Line 1464 of yacc.c  */
-#line 4384 "Gmsh.y"
+#line 4455 "Gmsh.y"
     {
       char tmpstring[1024];
       int i = PrintListOfDouble((yyvsp[(3) - (6)].c), (yyvsp[(5) - (6)].l), tmpstring);
@@ -9961,7 +10027,7 @@ yyreduce:
 
 
 /* Line 1464 of yacc.c  */
-#line 9965 "Gmsh.tab.cpp"
+#line 10031 "Gmsh.tab.cpp"
       default: break;
     }
   YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
@@ -10173,7 +10239,7 @@ yyreturn:
 
 
 /* Line 1684 of yacc.c  */
-#line 4404 "Gmsh.y"
+#line 4475 "Gmsh.y"
 
 
 int PrintListOfDouble(char *format, List_T *list, char *buffer)
@@ -10185,8 +10251,8 @@ int PrintListOfDouble(char *format, List_T *list, char *buffer)
   buffer[j] = '\0';
 
   while(j < (int)strlen(format) && format[j] != '%') j++;
-  strncpy(buffer, format, j); 
-  buffer[j]='\0'; 
+  strncpy(buffer, format, j);
+  buffer[j]='\0';
   for(int i = 0; i < List_Nbr(list); i++){
     k = j;
     j++;
@@ -10199,7 +10265,7 @@ int PrintListOfDouble(char *format, List_T *list, char *buffer)
       if(k != j){
 	strncpy(tmp1, &(format[k]), j-k);
 	tmp1[j-k] = '\0';
-	sprintf(tmp2, tmp1, *(double*)List_Pointer(list, i)); 
+	sprintf(tmp2, tmp1, *(double*)List_Pointer(list, i));
 	strcat(buffer, tmp2);
       }
     }
diff --git a/Parser/Gmsh.tab.hpp b/Parser/Gmsh.tab.hpp
index 2aab568737bf4d017635d292cc08c97ee6092a22..b178639af40aa20d40616088a1b190c8dbdafbe1 100644
--- a/Parser/Gmsh.tab.hpp
+++ b/Parser/Gmsh.tab.hpp
@@ -70,110 +70,111 @@
      tFmod = 287,
      tModulo = 288,
      tHypot = 289,
-     tPrintf = 290,
-     tSprintf = 291,
-     tStrCat = 292,
-     tStrPrefix = 293,
-     tStrRelative = 294,
-     tBoundingBox = 295,
-     tDraw = 296,
-     tToday = 297,
-     tSyncModel = 298,
-     tCreateTopology = 299,
-     tCreateTopologyNoHoles = 300,
-     tDistanceFunction = 301,
-     tDefineConstant = 302,
-     tPoint = 303,
-     tCircle = 304,
-     tEllipse = 305,
-     tLine = 306,
-     tSphere = 307,
-     tPolarSphere = 308,
-     tSurface = 309,
-     tSpline = 310,
-     tVolume = 311,
-     tCharacteristic = 312,
-     tLength = 313,
-     tParametric = 314,
-     tElliptic = 315,
-     tRefineMesh = 316,
-     tPlane = 317,
-     tRuled = 318,
-     tTransfinite = 319,
-     tComplex = 320,
-     tPhysical = 321,
-     tCompound = 322,
-     tPeriodic = 323,
-     tUsing = 324,
-     tPlugin = 325,
-     tDegenerated = 326,
-     tRotate = 327,
-     tTranslate = 328,
-     tSymmetry = 329,
-     tDilate = 330,
-     tExtrude = 331,
-     tLevelset = 332,
-     tRecombine = 333,
-     tSmoother = 334,
-     tSplit = 335,
-     tDelete = 336,
-     tCoherence = 337,
-     tIntersect = 338,
-     tLayers = 339,
-     tHole = 340,
-     tAlias = 341,
-     tAliasWithOptions = 342,
-     tQuadTriDbl = 343,
-     tQuadTriSngl = 344,
-     tRecombLaterals = 345,
-     tTransfQuadTri = 346,
-     tText2D = 347,
-     tText3D = 348,
-     tInterpolationScheme = 349,
-     tTime = 350,
-     tCombine = 351,
-     tBSpline = 352,
-     tBezier = 353,
-     tNurbs = 354,
-     tNurbsOrder = 355,
-     tNurbsKnots = 356,
-     tColor = 357,
-     tColorTable = 358,
-     tFor = 359,
-     tIn = 360,
-     tEndFor = 361,
-     tIf = 362,
-     tEndIf = 363,
-     tExit = 364,
-     tField = 365,
-     tReturn = 366,
-     tCall = 367,
-     tFunction = 368,
-     tShow = 369,
-     tHide = 370,
-     tGetValue = 371,
-     tGetEnv = 372,
-     tGetString = 373,
-     tGMSH_MAJOR_VERSION = 374,
-     tGMSH_MINOR_VERSION = 375,
-     tGMSH_PATCH_VERSION = 376,
-     tHomRank = 377,
-     tHomGen = 378,
-     tHomCut = 379,
-     tHomSeq = 380,
-     tAFFECTDIVIDE = 381,
-     tAFFECTTIMES = 382,
-     tAFFECTMINUS = 383,
-     tAFFECTPLUS = 384,
-     tOR = 385,
-     tAND = 386,
-     tNOTEQUAL = 387,
-     tEQUAL = 388,
-     tGREATEROREQUAL = 389,
-     tLESSOREQUAL = 390,
-     UNARYPREC = 391,
-     tMINUSMINUS = 392,
-     tPLUSPLUS = 393
+     tList = 290,
+     tPrintf = 291,
+     tSprintf = 292,
+     tStrCat = 293,
+     tStrPrefix = 294,
+     tStrRelative = 295,
+     tBoundingBox = 296,
+     tDraw = 297,
+     tToday = 298,
+     tSyncModel = 299,
+     tCreateTopology = 300,
+     tCreateTopologyNoHoles = 301,
+     tDistanceFunction = 302,
+     tDefineConstant = 303,
+     tPoint = 304,
+     tCircle = 305,
+     tEllipse = 306,
+     tLine = 307,
+     tSphere = 308,
+     tPolarSphere = 309,
+     tSurface = 310,
+     tSpline = 311,
+     tVolume = 312,
+     tCharacteristic = 313,
+     tLength = 314,
+     tParametric = 315,
+     tElliptic = 316,
+     tRefineMesh = 317,
+     tPlane = 318,
+     tRuled = 319,
+     tTransfinite = 320,
+     tComplex = 321,
+     tPhysical = 322,
+     tCompound = 323,
+     tPeriodic = 324,
+     tUsing = 325,
+     tPlugin = 326,
+     tDegenerated = 327,
+     tRotate = 328,
+     tTranslate = 329,
+     tSymmetry = 330,
+     tDilate = 331,
+     tExtrude = 332,
+     tLevelset = 333,
+     tRecombine = 334,
+     tSmoother = 335,
+     tSplit = 336,
+     tDelete = 337,
+     tCoherence = 338,
+     tIntersect = 339,
+     tLayers = 340,
+     tHole = 341,
+     tAlias = 342,
+     tAliasWithOptions = 343,
+     tQuadTriDbl = 344,
+     tQuadTriSngl = 345,
+     tRecombLaterals = 346,
+     tTransfQuadTri = 347,
+     tText2D = 348,
+     tText3D = 349,
+     tInterpolationScheme = 350,
+     tTime = 351,
+     tCombine = 352,
+     tBSpline = 353,
+     tBezier = 354,
+     tNurbs = 355,
+     tNurbsOrder = 356,
+     tNurbsKnots = 357,
+     tColor = 358,
+     tColorTable = 359,
+     tFor = 360,
+     tIn = 361,
+     tEndFor = 362,
+     tIf = 363,
+     tEndIf = 364,
+     tExit = 365,
+     tField = 366,
+     tReturn = 367,
+     tCall = 368,
+     tFunction = 369,
+     tShow = 370,
+     tHide = 371,
+     tGetValue = 372,
+     tGetEnv = 373,
+     tGetString = 374,
+     tGMSH_MAJOR_VERSION = 375,
+     tGMSH_MINOR_VERSION = 376,
+     tGMSH_PATCH_VERSION = 377,
+     tHomRank = 378,
+     tHomGen = 379,
+     tHomCut = 380,
+     tHomSeq = 381,
+     tAFFECTDIVIDE = 382,
+     tAFFECTTIMES = 383,
+     tAFFECTMINUS = 384,
+     tAFFECTPLUS = 385,
+     tOR = 386,
+     tAND = 387,
+     tNOTEQUAL = 388,
+     tEQUAL = 389,
+     tGREATEROREQUAL = 390,
+     tLESSOREQUAL = 391,
+     UNARYPREC = 392,
+     tMINUSMINUS = 393,
+     tPLUSPLUS = 394
    };
 #endif
 
@@ -197,7 +198,7 @@ typedef union YYSTYPE
 
 
 /* Line 1685 of yacc.c  */
-#line 201 "Gmsh.tab.hpp"
+#line 202 "Gmsh.tab.hpp"
 } YYSTYPE;
 # define YYSTYPE_IS_TRIVIAL 1
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
diff --git a/Parser/Gmsh.y b/Parser/Gmsh.y
index bea02acbcc8a21e9a5b3d7b8d0829bb914202d69..87e7eebde42c87b106d0119fb6893001a83f2347 100644
--- a/Parser/Gmsh.y
+++ b/Parser/Gmsh.y
@@ -59,7 +59,7 @@
 std::string gmsh_yyname;
 int gmsh_yyerrorstate = 0;
 int gmsh_yyviewindex = 0;
-std::map<std::string, std::vector<double> > gmsh_yysymbols;
+std::map<std::string, gmsh_yysymbol> gmsh_yysymbols;
 
 // Static parser variables (accessible only in this file)
 static std::map<std::string, std::string> gmsh_yystringsymbols;
@@ -104,7 +104,7 @@ fullMatrix<double> ListOfListOfDouble2Matrix(List_T *list);
 %token tEND tAFFECT tDOTS tPi tMPI_Rank tMPI_Size tEuclidian tCoordinates
 %token tExp tLog tLog10 tSqrt tSin tAsin tCos tAcos tTan tRand
 %token tAtan tAtan2 tSinh tCosh tTanh tFabs tFloor tCeil
-%token tFmod tModulo tHypot 
+%token tFmod tModulo tHypot tList
 %token tPrintf tSprintf tStrCat tStrPrefix tStrRelative
 %token tBoundingBox tDraw tToday tSyncModel tCreateTopology tCreateTopologyNoHoles
 %token tDistanceFunction tDefineConstant
@@ -123,16 +123,16 @@ fullMatrix<double> ListOfListOfDouble2Matrix(List_T *list);
 %token tGMSH_MAJOR_VERSION tGMSH_MINOR_VERSION tGMSH_PATCH_VERSION
 %token tHomRank tHomGen tHomCut tHomSeq
 
-%type <d> FExpr FExpr_Single 
+%type <d> FExpr FExpr_Single
 %type <v> VExpr VExpr_Single CircleOptions TransfiniteType
 %type <i> NumericAffectation NumericIncrement PhysicalId
 %type <i> TransfiniteArrangement RecombineAngle
 %type <u> ColorExpr
 %type <c> StringExpr StringExprVar SendToFile
 %type <l> FExpr_Multi ListOfDouble ListOfDoubleOrAll RecursiveListOfDouble
-%type <l> RecursiveListOfListOfDouble 
-%type <l> ListOfColor RecursiveListOfColor 
-%type <l> ListOfShapes Transform Extrude MultipleShape 
+%type <l> RecursiveListOfListOfDouble
+%type <l> ListOfColor RecursiveListOfColor
+%type <l> ListOfShapes Transform Extrude MultipleShape
 %type <l> TransfiniteCorners InSphereCenter
 %type <s> Shape
 
@@ -158,14 +158,14 @@ fullMatrix<double> ListOfListOfDouble2Matrix(List_T *list);
 
 %%
 
-All : 
+All :
     GeoFormatItems
   | error tEND { yyerrok; return 1; }
 ;
 
 //  G E O   F I L E   F O R M A T
 
-GeoFormatItems : 
+GeoFormatItems :
     // nothing
   | GeoFormatItems GeoFormatItem
 ;
@@ -225,7 +225,7 @@ Printf :
     {
       char tmpstring[1024];
       int i = PrintListOfDouble($3, $5, tmpstring);
-      if(i < 0) 
+      if(i < 0)
 	yymsg(0, "Too few arguments in Printf");
       else if(i > 0)
 	yymsg(0, "%d extra argument%s in Printf", i, (i > 1) ? "s" : "");
@@ -238,7 +238,7 @@ Printf :
     {
       char tmpstring[1024];
       int i = PrintListOfDouble($3, $5, tmpstring);
-      if(i < 0) 
+      if(i < 0)
 	yymsg(0, "Too few arguments in Printf");
       else if(i > 0)
 	yymsg(0, "%d extra argument%s in Printf", i, (i > 1) ? "s" : "");
@@ -259,11 +259,11 @@ Printf :
     }
 ;
 
-// V I E W 
+// V I E W
 
 View :
     tSTRING tBIGSTR '{' Views '}' tEND
-    { 
+    {
 #if defined(HAVE_POST)
       if(!strcmp($1, "View") && ViewData->finalize()){
 	ViewData->setName($2);
@@ -304,7 +304,7 @@ Views :
     // nothing
     {
 #if defined(HAVE_POST)
-      ViewData = new PViewDataList(); 
+      ViewData = new PViewDataList();
 #endif
     }
   | Views Element
@@ -328,8 +328,8 @@ ElementValues :
     { if(ViewValueList) ViewValueList->push_back($3); }
 ;
 
-Element : 
-    tSTRING 
+Element :
+    tSTRING
     {
 #if defined(HAVE_POST)
       if(!strncmp($1, "SP", 2)){
@@ -426,7 +426,7 @@ Element :
         if(strlen($1) > 2) ViewData->setOrder2(TYPE_PYR);
       }
       else{
-	yymsg(0, "Unknown element type '%s'", $1);	
+	yymsg(0, "Unknown element type '%s'", $1);
 	ViewValueList = 0; ViewNumList = 0;
       }
 #endif
@@ -438,7 +438,7 @@ Element :
 #if defined(HAVE_POST)
       if(ViewValueList){
 	for(int i = 0; i < 3; i++)
-	  for(unsigned int j = 0; j < ViewCoord.size() / 3; j++) 
+	  for(unsigned int j = 0; j < ViewCoord.size() / 3; j++)
 	    ViewValueList->push_back(ViewCoord[3 * j + i]);
       }
 #endif
@@ -453,14 +453,14 @@ Element :
 
 Text2DValues :
     StringExprVar
-    { 
+    {
 #if defined(HAVE_POST)
       for(int i = 0; i < (int)strlen($1) + 1; i++) ViewData->T2C.push_back($1[i]);
 #endif
       Free($1);
     }
   | Text2DValues ',' StringExprVar
-    { 
+    {
 #if defined(HAVE_POST)
       for(int i = 0; i < (int)strlen($3) + 1; i++) ViewData->T2C.push_back($3[i]);
 #endif
@@ -468,14 +468,14 @@ Text2DValues :
     }
 ;
 
-Text2D : 
+Text2D :
     tText2D '(' FExpr ',' FExpr ',' FExpr ')'
-    { 
+    {
 #if defined(HAVE_POST)
-      ViewData->T2D.push_back($3); 
+      ViewData->T2D.push_back($3);
       ViewData->T2D.push_back($5);
-      ViewData->T2D.push_back($7); 
-      ViewData->T2D.push_back(ViewData->T2C.size()); 
+      ViewData->T2D.push_back($7);
+      ViewData->T2D.push_back(ViewData->T2C.size());
 #endif
     }
     '{' Text2DValues '}' tEND
@@ -488,14 +488,14 @@ Text2D :
 
 Text3DValues :
     StringExprVar
-    { 
+    {
 #if defined(HAVE_POST)
       for(int i = 0; i < (int)strlen($1) + 1; i++) ViewData->T3C.push_back($1[i]);
 #endif
       Free($1);
     }
   | Text3DValues ',' StringExprVar
-    { 
+    {
 #if defined(HAVE_POST)
       for(int i = 0; i < (int)strlen($3) + 1; i++) ViewData->T3C.push_back($3[i]);
 #endif
@@ -503,13 +503,13 @@ Text3DValues :
     }
 ;
 
-Text3D : 
+Text3D :
     tText3D '(' FExpr ',' FExpr ',' FExpr ',' FExpr ')'
-    { 
+    {
 #if defined(HAVE_POST)
       ViewData->T3D.push_back($3); ViewData->T3D.push_back($5);
       ViewData->T3D.push_back($7); ViewData->T3D.push_back($9);
-      ViewData->T3D.push_back(ViewData->T3C.size()); 
+      ViewData->T3D.push_back(ViewData->T3C.size());
 #endif
     }
     '{' Text3DValues '}' tEND
@@ -521,46 +521,46 @@ Text3D :
 ;
 
 InterpolationMatrix :
-    tInterpolationScheme '{' RecursiveListOfListOfDouble '}' 
+    tInterpolationScheme '{' RecursiveListOfListOfDouble '}'
                          '{' RecursiveListOfListOfDouble '}'  tEND
     {
 #if defined(HAVE_POST)
-      int type = 
-	(ViewData->NbSL || ViewData->NbVL) ? TYPE_LIN : 
-	(ViewData->NbST || ViewData->NbVT) ? TYPE_TRI : 
-	(ViewData->NbSQ || ViewData->NbVQ) ? TYPE_QUA : 
-	(ViewData->NbSS || ViewData->NbVS) ? TYPE_TET : 
-	(ViewData->NbSY || ViewData->NbVY) ? TYPE_PYR : 
-	(ViewData->NbSI || ViewData->NbVI) ? TYPE_PRI : 
-      	(ViewData->NbSH || ViewData->NbVH) ? TYPE_HEX : 
+      int type =
+	(ViewData->NbSL || ViewData->NbVL) ? TYPE_LIN :
+	(ViewData->NbST || ViewData->NbVT) ? TYPE_TRI :
+	(ViewData->NbSQ || ViewData->NbVQ) ? TYPE_QUA :
+	(ViewData->NbSS || ViewData->NbVS) ? TYPE_TET :
+	(ViewData->NbSY || ViewData->NbVY) ? TYPE_PYR :
+	(ViewData->NbSI || ViewData->NbVI) ? TYPE_PRI :
+      	(ViewData->NbSH || ViewData->NbVH) ? TYPE_HEX :
 	0;
-      ViewData->setInterpolationMatrices(type, ListOfListOfDouble2Matrix($3), 
+      ViewData->setInterpolationMatrices(type, ListOfListOfDouble2Matrix($3),
                                          ListOfListOfDouble2Matrix($6));
 #endif
     }
- |  tInterpolationScheme '{' RecursiveListOfListOfDouble '}' 
-                         '{' RecursiveListOfListOfDouble '}'  
-                         '{' RecursiveListOfListOfDouble '}'  
+ |  tInterpolationScheme '{' RecursiveListOfListOfDouble '}'
+                         '{' RecursiveListOfListOfDouble '}'
+                         '{' RecursiveListOfListOfDouble '}'
                          '{' RecursiveListOfListOfDouble '}'  tEND
     {
 #if defined(HAVE_POST)
-      int type = 
-	(ViewData->NbSL || ViewData->NbVL) ? TYPE_LIN : 
-	(ViewData->NbST || ViewData->NbVT) ? TYPE_TRI : 
-	(ViewData->NbSQ || ViewData->NbVQ) ? TYPE_QUA : 
-	(ViewData->NbSS || ViewData->NbVS) ? TYPE_TET : 
-      	(ViewData->NbSH || ViewData->NbVH) ? TYPE_HEX : 
+      int type =
+	(ViewData->NbSL || ViewData->NbVL) ? TYPE_LIN :
+	(ViewData->NbST || ViewData->NbVT) ? TYPE_TRI :
+	(ViewData->NbSQ || ViewData->NbVQ) ? TYPE_QUA :
+	(ViewData->NbSS || ViewData->NbVS) ? TYPE_TET :
+      	(ViewData->NbSH || ViewData->NbVH) ? TYPE_HEX :
 	0;
-      ViewData->setInterpolationMatrices(type, ListOfListOfDouble2Matrix($3), 
+      ViewData->setInterpolationMatrices(type, ListOfListOfDouble2Matrix($3),
                                          ListOfListOfDouble2Matrix($6),
-                                         ListOfListOfDouble2Matrix($9), 
+                                         ListOfListOfDouble2Matrix($9),
                                          ListOfListOfDouble2Matrix($12));
 #endif
     }
 ;
 
 Time :
-    tTime 
+    tTime
     {
 #if defined(HAVE_POST)
       ViewValueList = &ViewData->Time;
@@ -591,56 +591,129 @@ Affectation :
   // Variables
     tDefineConstant '[' DefineConstants ']' tEND
 
-  | tSTRING NumericAffectation FExpr tEND
+  | tSTRING NumericAffectation ListOfDouble tEND
     {
-      if(!gmsh_yysymbols.count($1)){
-	if(!$2)
-	  gmsh_yysymbols[$1].push_back($3);
-	else
-	  yymsg(0, "Unknown variable '%s'", $1);
+      if(!gmsh_yysymbols.count($1) && $2 && List_Nbr($3) == 1){
+        yymsg(0, "Unknown variable '%s'", $1);
       }
       else{
-        if(gmsh_yysymbols[$1].empty()){
-          if($2) yymsg(0, "Uninitialized variable '%s'", $1);
-          gmsh_yysymbols[$1].resize(1, 0.);
+        gmsh_yysymbol &s(gmsh_yysymbols[$1]);
+        if(!$2) s.list = (List_Nbr($3) != 1); // list if 0 or > 1 elements
+        if(!s.list){ // single expression
+          if(List_Nbr($3) != 1){
+            yymsg(0, "Cannot assign list to variable '%s'", $1);
+          }
+          else{
+            double d;
+            List_Read($3, 0, &d);
+            if(s.value.empty()){
+              if($2) yymsg(1, "Uninitialized variable '%s'", $1);
+              s.value.resize(1, 0.);
+            }
+            switch($2){
+            case 0 : s.value[0] = d; break;
+            case 1 : s.value[0] += d; break;
+            case 2 : s.value[0] -= d; break;
+            case 3 : s.value[0] *= d; break;
+            case 4 :
+              if(d) s.value[0] /= d;
+              else yymsg(0, "Division by zero in '%s /= %g'", $1, d);
+              break;
+            }
+          }
+        }
+        else{ // list of expressions
+          switch($2){
+          case 0: // affect
+            s.value.clear(); // fall-through
+          case 1: // append
+            for(int i = 0; i < List_Nbr($3); i++){
+              double d;
+              List_Read($3, i, &d);
+              s.value.push_back(d);
+            }
+            break;
+          case 2: // remove
+            for(int i = 0; i < List_Nbr($3); i++){
+              double d;
+              List_Read($3, i, &d);
+              std::vector<double>::iterator it = std::find(s.value.begin(),
+                                                           s.value.end(), d);
+              if(it != s.value.end()) s.value.erase(it);
+            }
+            break;
+          default:
+            yymsg(0, "Operators *= and /= not available for lists");
+            break;
+          }
         }
-	switch($2){
-	case 0 : gmsh_yysymbols[$1][0] = $3; break;
-	case 1 : gmsh_yysymbols[$1][0] += $3; break;
-	case 2 : gmsh_yysymbols[$1][0] -= $3; break;
-	case 3 : gmsh_yysymbols[$1][0] *= $3; break;
-	case 4 : 
-	  if($3) gmsh_yysymbols[$1][0] /= $3; 
-	  else yymsg(0, "Division by zero in '%s /= %g'", $1, $3);
-	  break;
-	}
       }
       Free($1);
+      List_Delete($3);
     }
+
+  // This variant can be used to force the variable type to "list"
+
+  | tSTRING '[' ']' NumericAffectation ListOfDouble tEND
+    {
+      gmsh_yysymbol &s(gmsh_yysymbols[$1]);
+      s.list = true;
+      double d;
+      switch($4){
+      case 0: // affect
+        s.value.clear(); // fall-through
+      case 1: // append
+        for(int i = 0; i < List_Nbr($5); i++){
+          List_Read($5, i, &d);
+          s.value.push_back(d);
+        }
+        break;
+      case 2: // remove
+        for(int i = 0; i < List_Nbr($5); i++){
+          List_Read($5, i, &d);
+          std::vector<double>::iterator it = std::find(s.value.begin(),
+                                                       s.value.end(), d);
+          if(it != s.value.end()) s.value.erase(it);
+        }
+        break;
+      default:
+        yymsg(0, "Operators *= and /= not available for lists");
+        break;
+      }
+      Free($1);
+      List_Delete($5);
+    }
+
   | tSTRING '[' FExpr ']' NumericAffectation FExpr tEND
     {
       int index = (int)$3;
       if(!gmsh_yysymbols.count($1)){
 	if(!$5){
-	  gmsh_yysymbols[$1].resize(index + 1, 0.);
-	  gmsh_yysymbols[$1][index] = $6;
+          gmsh_yysymbol &s(gmsh_yysymbols[$1]);
+          s.list = true;
+	  s.value.resize(index + 1, 0.);
+	  s.value[index] = $6;
 	}
 	else
 	  yymsg(0, "Unknown variable '%s'", $1);
       }
       else{
-	if((int)gmsh_yysymbols[$1].size() < index + 1)
-	  gmsh_yysymbols[$1].resize(index + 1, 0.);
-	switch($5){
-	case 0 : gmsh_yysymbols[$1][index] = $6; break;
-	case 1 : gmsh_yysymbols[$1][index] += $6; break;
-	case 2 : gmsh_yysymbols[$1][index] -= $6; break;
-	case 3 : gmsh_yysymbols[$1][index] *= $6; break;
-	case 4 : 
-	  if($6) gmsh_yysymbols[$1][index] /= $6; 
-	  else yymsg(0, "Division by zero in '%s[%d] /= %g'", $1, index, $6);
-	  break;
-	}
+        gmsh_yysymbol &s(gmsh_yysymbols[$1]);
+        if(s.list){
+          if((int)s.value.size() < index + 1) s.value.resize(index + 1, 0.);
+          switch($5){
+          case 0 : s.value[index] = $6; break;
+          case 1 : s.value[index] += $6; break;
+          case 2 : s.value[index] -= $6; break;
+          case 3 : s.value[index] *= $6; break;
+          case 4 :
+            if($6) s.value[index] /= $6;
+            else yymsg(0, "Division by zero in '%s[%d] /= %g'", $1, index, $6);
+            break;
+          }
+        }
+        else
+          yymsg(0, "Variable '%s' is not a list", $1);
       }
       Free($1);
     }
@@ -652,95 +725,77 @@ Affectation :
       else{
 	if(!gmsh_yysymbols.count($1)){
 	  if(!$7){
+            gmsh_yysymbol &s(gmsh_yysymbols[$1]);
+            s.list = true;
 	    for(int i = 0; i < List_Nbr($4); i++){
 	      int index = (int)(*(double*)List_Pointer($4, i));
-	      gmsh_yysymbols[$1].resize(index + 1, 0.);
-	      gmsh_yysymbols[$1][index] = *(double*)List_Pointer($8, i);
+	      s.value.resize(index + 1, 0.);
+	      s.value[index] = *(double*)List_Pointer($8, i);
 	    }
 	  }
 	  else
 	    yymsg(0, "Unknown variable '%s'", $1);
 	}
 	else{
-	  for(int i = 0; i < List_Nbr($4); i++){
-	    int index = (int)(*(double*)List_Pointer($4, i));
-	    double d = *(double*)List_Pointer($8, i);
-	    if((int)gmsh_yysymbols[$1].size() < index + 1)
-	      gmsh_yysymbols[$1].resize(index + 1, 0.);
-	    switch($7){
-	    case 0 : gmsh_yysymbols[$1][index] = d; break;
-	    case 1 : gmsh_yysymbols[$1][index] += d; break;
-	    case 2 : gmsh_yysymbols[$1][index] -= d; break;
-	    case 3 : gmsh_yysymbols[$1][index] *= d; break;
-	    case 4 : 
-	      if($8) gmsh_yysymbols[$1][index] /= d; 
-	      else yymsg(0, "Division by zero in '%s[%d] /= %g'", $1, index, d);
-	      break;
-	    }
-	  }
-	}
+          gmsh_yysymbol &s(gmsh_yysymbols[$1]);
+          if(s.list){
+            for(int i = 0; i < List_Nbr($4); i++){
+              int index = (int)(*(double*)List_Pointer($4, i));
+              double d = *(double*)List_Pointer($8, i);
+              if((int)s.value.size() < index + 1) s.value.resize(index + 1, 0.);
+              switch($7){
+              case 0 : s.value[index] = d; break;
+              case 1 : s.value[index] += d; break;
+              case 2 : s.value[index] -= d; break;
+              case 3 : s.value[index] *= d; break;
+              case 4 :
+                if($8) s.value[index] /= d;
+                else yymsg(0, "Division by zero in '%s[%d] /= %g'", $1, index, d);
+                break;
+              }
+            }
+          }
+          else
+            yymsg(0, "Variable '%s' is not a list", $1);
+        }
       }
       Free($1);
       List_Delete($4);
       List_Delete($8);
     }
-  | tSTRING '[' ']' tAFFECT ListOfDouble tEND
-    {
-      if(gmsh_yysymbols.count($1))
-	gmsh_yysymbols[$1].clear();
-      gmsh_yysymbols[$1] = std::vector<double>();
-      for(int i = 0; i < List_Nbr($5); i++)
-        gmsh_yysymbols[$1].push_back(*(double*)List_Pointer($5, i));
-      Free($1);
-      List_Delete($5);
-    }
-  | tSTRING '[' ']' tAFFECTPLUS ListOfDouble tEND
-    {
-      // appends to the list
-      for(int i = 0; i < List_Nbr($5); i++)
-	gmsh_yysymbols[$1].push_back(*(double*)List_Pointer($5, i));
-      Free($1);
-      List_Delete($5);
-    }
-  | tSTRING '[' ']' tAFFECTMINUS ListOfDouble tEND
-    {
-      // remove from the list
-      for(int i = 0; i < List_Nbr($5); i++){
-        double d = *(double*)List_Pointer($5, i);
-        std::vector<double>::iterator it = std::find
-          (gmsh_yysymbols[$1].begin(), gmsh_yysymbols[$1].end(), d);
-        if(it != gmsh_yysymbols[$1].end())
-          gmsh_yysymbols[$1].erase(it);
-      }
-      Free($1);
-      List_Delete($5);
-    }
   | tSTRING NumericIncrement tEND
     {
       if(!gmsh_yysymbols.count($1))
-	yymsg(0, "Unknown variable '%s'", $1); 
+	yymsg(0, "Unknown variable '%s'", $1);
       else{
-        if(gmsh_yysymbols[$1].empty())
+        gmsh_yysymbol &s(gmsh_yysymbols[$1]);
+        if(!s.list && s.value.empty())
           yymsg(0, "Uninitialized variable '%s'", $1);
+        else if(!s.list)
+          s.value[0] += $2;
         else
-          gmsh_yysymbols[$1][0] += $2;
+          yymsg(0, "Variable '%s' is a list", $1);
       }
       Free($1);
     }
   | tSTRING '[' FExpr ']' NumericIncrement tEND
     {
       if(!gmsh_yysymbols.count($1))
-	yymsg(0, "Unknown variable '%s'", $1); 
+	yymsg(0, "Unknown variable '%s'", $1);
       else{
-	int index = (int)$3;
-	if((int)gmsh_yysymbols[$1].size() < index + 1)
-	  gmsh_yysymbols[$1].resize(index + 1, 0.);
-	gmsh_yysymbols[$1][index] += $5;
+        gmsh_yysymbol &s(gmsh_yysymbols[$1]);
+        if(s.list){
+          int index = (int)$3;
+          if((int)s.value.size() < index + 1) s.value.resize(index + 1, 0.);
+          s.value[index] += $5;
+        }
+        else
+          yymsg(0, "Variable '%s' is not a list", $1);
       }
       Free($1);
     }
-  | tSTRING tAFFECT StringExpr tEND 
-    { 
+  | tSTRING tAFFECT StringExpr tEND
+    {
       gmsh_yystringsymbols[$1] = std::string($3);
       Free($1);
       Free($3);
@@ -748,14 +803,14 @@ Affectation :
 
   // Option Strings
 
-  | tSTRING '.' tSTRING tAFFECT StringExpr tEND 
-    { 
+  | tSTRING '.' tSTRING tAFFECT StringExpr tEND
+    {
       std::string tmp($5);
       StringOption(GMSH_SET|GMSH_GUI, $1, 0, $3, tmp);
       Free($1); Free($3); Free($5)
     }
-  | tSTRING '[' FExpr ']' '.' tSTRING tAFFECT StringExpr tEND 
-    { 
+  | tSTRING '[' FExpr ']' '.' tSTRING tAFFECT StringExpr tEND
+    {
       std::string tmp($8);
       StringOption(GMSH_SET|GMSH_GUI, $1, (int)$3, $6, tmp);
       Free($1); Free($6); Free($8)
@@ -763,7 +818,7 @@ Affectation :
 
   // Option Numbers
 
-  | tSTRING '.' tSTRING NumericAffectation FExpr tEND 
+  | tSTRING '.' tSTRING NumericAffectation FExpr tEND
     {
       double d = 0.;
       if(NumberOption(GMSH_GET, $1, 0, $3, d)){
@@ -772,8 +827,8 @@ Affectation :
 	case 1 : d += $5; break;
 	case 2 : d -= $5; break;
 	case 3 : d *= $5; break;
-	case 4 : 
-	  if($5) d /= $5; 
+	case 4 :
+	  if($5) d /= $5;
 	  else yymsg(0, "Division by zero in '%s.%s /= %g'", $1, $3, $5);
 	  break;
 	}
@@ -781,7 +836,7 @@ Affectation :
       }
       Free($1); Free($3);
     }
-  | tSTRING '[' FExpr ']' '.' tSTRING NumericAffectation FExpr tEND 
+  | tSTRING '[' FExpr ']' '.' tSTRING NumericAffectation FExpr tEND
     {
       double d = 0.;
       if(NumberOption(GMSH_GET, $1, (int)$3, $6, d)){
@@ -790,8 +845,8 @@ Affectation :
 	case 1 : d += $8; break;
 	case 2 : d -= $8; break;
 	case 3 : d *= $8; break;
-	case 4 : 
-	  if($8) d /= $8; 
+	case 4 :
+	  if($8) d /= $8;
 	  else yymsg(0, "Division by zero in '%s[%d].%s /= %g'", $1, (int)$3, $6, $8);
 	  break;
 	}
@@ -799,7 +854,7 @@ Affectation :
       }
       Free($1); Free($6);
     }
-  | tSTRING '.' tSTRING NumericIncrement tEND 
+  | tSTRING '.' tSTRING NumericIncrement tEND
     {
       double d = 0.;
       if(NumberOption(GMSH_GET, $1, 0, $3, d)){
@@ -808,7 +863,7 @@ Affectation :
       }
       Free($1); Free($3);
     }
-  | tSTRING '[' FExpr ']' '.' tSTRING NumericIncrement tEND 
+  | tSTRING '[' FExpr ']' '.' tSTRING NumericIncrement tEND
     {
       double d = 0.;
       if(NumberOption(GMSH_GET, $1, (int)$3, $6, d)){
@@ -820,12 +875,12 @@ Affectation :
 
   // Option Colors
 
-  | tSTRING '.' tColor '.' tSTRING tAFFECT ColorExpr tEND 
+  | tSTRING '.' tColor '.' tSTRING tAFFECT ColorExpr tEND
     {
       ColorOption(GMSH_SET|GMSH_GUI, $1, 0, $5, $7);
       Free($1); Free($5);
     }
-  | tSTRING '[' FExpr ']' '.' tColor '.' tSTRING tAFFECT ColorExpr tEND 
+  | tSTRING '[' FExpr ']' '.' tColor '.' tSTRING tAFFECT ColorExpr tEND
     {
       ColorOption(GMSH_SET|GMSH_GUI, $1, (int)$3, $8, $10);
       Free($1); Free($8);
@@ -833,7 +888,7 @@ Affectation :
 
   // ColorTable
 
-  | tSTRING '.' tColorTable tAFFECT ListOfColor tEND 
+  | tSTRING '.' tColorTable tAFFECT ListOfColor tEND
     {
       GmshColorTable *ct = GetColorTable(0);
       if(!ct)
@@ -841,7 +896,7 @@ Affectation :
       else{
 	ct->size = List_Nbr($5);
 	if(ct->size > COLORTABLE_NBMAX_COLOR)
-	  yymsg(0, "Too many (%d>%d) colors in View[%d].ColorTable", 
+	  yymsg(0, "Too many (%d>%d) colors in View[%d].ColorTable",
 		ct->size, COLORTABLE_NBMAX_COLOR, 0);
 	else
 	  for(int i = 0; i < ct->size; i++) List_Read($5, i, &ct->table[i]);
@@ -853,7 +908,7 @@ Affectation :
       Free($1);
       List_Delete($5);
     }
-  | tSTRING '[' FExpr ']' '.' tColorTable tAFFECT ListOfColor tEND 
+  | tSTRING '[' FExpr ']' '.' tColorTable tAFFECT ListOfColor tEND
     {
       GmshColorTable *ct = GetColorTable((int)$3);
       if(!ct)
@@ -861,7 +916,7 @@ Affectation :
       else{
 	ct->size = List_Nbr($8);
 	if(ct->size > COLORTABLE_NBMAX_COLOR)
-	  yymsg(0, "Too many (%d>%d) colors in View[%d].ColorTable", 
+	  yymsg(0, "Too many (%d>%d) colors in View[%d].ColorTable",
 		   ct->size, COLORTABLE_NBMAX_COLOR, (int)$3);
 	else
 	  for(int i = 0; i < ct->size; i++) List_Read($8, i, &ct->table[i]);
@@ -930,11 +985,11 @@ Affectation :
 		  "in field %i of type '%s'", $6, (int)$3, field->getName());
 	  }
 	}
-	else 
-	  yymsg(0, "Unknown option '%s' in field %i of type '%s'", 
+	else
+	  yymsg(0, "Unknown option '%s' in field %i of type '%s'",
 		$6, (int)$3, field->getName());
       }
-      else 
+      else
 	yymsg(0, "No field with id %i", (int)$3);
 #endif
       Free($6);
@@ -959,7 +1014,7 @@ Affectation :
 	  yymsg(0, "Unknown option '%s' in field %i of type '%s'",
 		$6, (int)$3, field->getName());
       }
-      else 
+      else
 	yymsg(0, "No field with id %i", (int)$3);
 #endif
       Free($6);
@@ -968,11 +1023,11 @@ Affectation :
 
   // Plugins
 
-  | tPlugin '(' tSTRING ')' '.' tSTRING tAFFECT FExpr tEND 
+  | tPlugin '(' tSTRING ')' '.' tSTRING tAFFECT FExpr tEND
     {
 #if defined(HAVE_PLUGINS)
       try {
-	PluginManager::instance()->setPluginOption($3, $6, $8); 
+	PluginManager::instance()->setPluginOption($3, $6, $8);
       }
       catch (...) {
 	yymsg(0, "Unknown option '%s' or plugin '%s'", $6, $3);
@@ -980,11 +1035,11 @@ Affectation :
 #endif
       Free($3); Free($6);
     }
-  | tPlugin '(' tSTRING ')' '.' tSTRING tAFFECT StringExpr tEND 
+  | tPlugin '(' tSTRING ')' '.' tSTRING tAFFECT StringExpr tEND
     {
 #if defined(HAVE_PLUGINS)
       try {
-	PluginManager::instance()->setPluginOption($3, $6, $8); 
+	PluginManager::instance()->setPluginOption($3, $6, $8);
       }
       catch (...) {
 	yymsg(0, "Unknown option '%s' or plugin '%s'", $6, $3);
@@ -1005,7 +1060,7 @@ DefineConstants :
       floatOptions.clear(); charOptions.clear();
       if(!gmsh_yysymbols.count(key)){
         Msg::ExchangeOnelabParameter(key, val, floatOptions, charOptions);
-        gmsh_yysymbols[key] = val;
+        gmsh_yysymbols[key].value = val;
       }
       Free($3);
     }
@@ -1016,25 +1071,25 @@ DefineConstants :
       floatOptions.clear(); charOptions.clear();
       if(!gmsh_yysymbols.count(key)){
         Msg::ExchangeOnelabParameter(key, val, floatOptions, charOptions);
-        gmsh_yysymbols[key] = val;
+        gmsh_yysymbols[key].value = val;
       }
       Free($3);
     }
   | DefineConstants Comma tSTRING tAFFECT '{' FExpr
-    { floatOptions.clear(); charOptions.clear(); } 
+    { floatOptions.clear(); charOptions.clear(); }
     FloatParameterOptions '}'
-    { 
+    {
       std::string key($3);
       std::vector<double> val(1, $6);
       if(!gmsh_yysymbols.count(key)){
         Msg::ExchangeOnelabParameter(key, val, floatOptions, charOptions);
-        gmsh_yysymbols[key] = val;
+        gmsh_yysymbols[key].value = val;
       }
     }
  ;
 
 FloatParameterOptions :
-  | FloatParameterOptions FloatParameterOption 
+  | FloatParameterOptions FloatParameterOption
  ;
 
 FloatParameterOption :
@@ -1042,7 +1097,7 @@ FloatParameterOption :
     {
       std::string key($2);
       for(int i = 0; i < List_Nbr($3); i++){
-        double v; 
+        double v;
         List_Read($3, i, &v);
         floatOptions[key].push_back(v);
       }
@@ -1063,13 +1118,13 @@ FloatParameterOption :
 
 PhysicalId :
     FExpr
-    { 
-      $$ = (int)$1; 
+    {
+      $$ = (int)$1;
     }
   | StringExpr
-    { 
+    {
       $$ = GModel::current()->setPhysicalName
-        (std::string($1), curPhysDim, 
+        (std::string($1), curPhysDim,
          ++GModel::current()->getGEOInternals()->MaxPhysicalNum);
       Free($1);
     }
@@ -1129,7 +1184,7 @@ Shape :
       $$.Type = MSH_POINT;
       $$.Num = num;
     }
-  | tPhysical tPoint 
+  | tPhysical tPoint
     {
       curPhysDim = 0;
     }
@@ -1150,16 +1205,16 @@ Shape :
       $$.Num = num;
     }
   | tCharacteristic tLength ListOfDouble tAFFECT FExpr tEND
-    {      
+    {
       for(int i = 0; i < List_Nbr($3); i++){
 	double d;
 	List_Read($3, i, &d);
-	Vertex *v = FindPoint((int)d); 	 
+	Vertex *v = FindPoint((int)d);
 	if(v)
 	  v->lc = $5;
 	else{
 	  GVertex *gv = GModel::current()->getVertexByTag((int)d);
-	  if(gv) 
+	  if(gv)
 	    gv->setPrescribedMeshSizeAtVertex($5);
 	}
       }
@@ -1167,7 +1222,7 @@ Shape :
       // dummy values
       $$.Type = 0;
       $$.Num = 0;
-    }  
+    }
 
   // Lines
 
@@ -1386,7 +1441,7 @@ Shape :
       $$.Type = MSH_SEGM_COMPOUND;
       $$.Num = num;
     }
-  | tPhysical tLine 
+  | tPhysical tLine
     {
       curPhysDim = 1;
     }
@@ -1471,13 +1526,13 @@ Shape :
       myGmshSurface = 0;
       $$.Type = 0;
       $$.Num = 0;
-    }  
+    }
   | tCoordinates tSurface FExpr tEND
     {
       myGmshSurface = gmshSurface::getSurface((int)$3);
       $$.Type = 0;
       $$.Num = 0;
-    }  
+    }
   | tParametric tSurface '(' FExpr ')' tAFFECT tBIGSTR tBIGSTR tBIGSTR tEND
     {
       int num = (int)$4;
@@ -1569,7 +1624,7 @@ Shape :
       $$.Type = MSH_SURF_COMPOUND;
       $$.Num = num;
     }
-  | tCompound tSurface '(' FExpr ')' tAFFECT ListOfDouble tSTRING 
+  | tCompound tSurface '(' FExpr ')' tAFFECT ListOfDouble tSTRING
       '{' RecursiveListOfListOfDouble '}' tEND
     {
       int num = (int)$4;
@@ -1600,7 +1655,7 @@ Shape :
       $$.Type = MSH_SURF_COMPOUND;
       $$.Num = num;
     }
-  | tPhysical tSurface 
+  | tPhysical tSurface
     {
       curPhysDim = 2;
     }
@@ -1675,7 +1730,7 @@ Shape :
       $$.Type = MSH_VOLUME_COMPOUND;
       $$.Num = num;
     }
-  | tPhysical tVolume 
+  | tPhysical tVolume
     {
       curPhysDim = 3;
     }
@@ -1744,8 +1799,8 @@ Transform :
       Free($1);
       List_Delete($3);
     }
-  | tIntersect tLine '{' RecursiveListOfDouble '}' tSurface '{' FExpr '}' 
-    { 
+  | tIntersect tLine '{' RecursiveListOfDouble '}' tSurface '{' FExpr '}'
+    {
       $$ = List_Create(2, 1, sizeof(Shape));
       IntersectCurvesWithSurface($4, (int)$8, $$);
       List_Delete($4);
@@ -1760,16 +1815,16 @@ Transform :
     }
 ;
 
-MultipleShape : 
+MultipleShape :
     ListOfShapes  { $$ = $1; }
   | Transform     { $$ = $1; }
 ;
 
-ListOfShapes : 
+ListOfShapes :
     // nothing
     {
       $$ = List_Create(3, 3, sizeof(Shape));
-    }   
+    }
   | ListOfShapes Shape
     {
       List_Add($$, &$2);
@@ -1915,7 +1970,7 @@ LevelSet :
       }
 #endif
     }
-  | tLevelset tPlane '(' FExpr ')' tAFFECT '{' VExpr ',' VExpr ',' 
+  | tLevelset tPlane '(' FExpr ')' tAFFECT '{' VExpr ',' VExpr ','
                                                RecursiveListOfDouble '}' tEND
     {
 #if defined(HAVE_DINTEGRATION)
@@ -1936,7 +1991,7 @@ LevelSet :
         yymsg(0, "Wrong levelset definition (%d)", $4);
 #endif
     }
-  | tLevelset tPlane '(' FExpr ')' tAFFECT '{' VExpr ',' VExpr ',' VExpr ',' 
+  | tLevelset tPlane '(' FExpr ')' tAFFECT '{' VExpr ',' VExpr ',' VExpr ','
                                                RecursiveListOfDouble '}' tEND
     {
 #if defined(HAVE_DINTEGRATION)
@@ -2147,7 +2202,7 @@ LevelSet :
       Free($2);
 #endif
     }
-  | tLevelset tSTRING '(' FExpr ')' tAFFECT '{' VExpr ',' VExpr ',' 
+  | tLevelset tSTRING '(' FExpr ')' tAFFECT '{' VExpr ',' VExpr ','
                                                 RecursiveListOfDouble '}' tEND
     {
 #if defined(HAVE_DINTEGRATION)
@@ -2240,7 +2295,7 @@ LevelSet :
             List_Read($12, i, &d[i]);
           double pt[3] = {$8[0], $8[1], $8[2]};
           double dir[3] = {$10[0], $10[1], $10[2]};
-          gLevelset *ls = new gLevelsetGeneralQuadric(pt, dir, d[0], d[1], 
+          gLevelset *ls = new gLevelsetGeneralQuadric(pt, dir, d[0], d[1],
                                                       d[2], d[3], d[4], t);
           LevelSet *l = Create_LevelSet(ls->getTag(), ls);
           Tree_Add(GModel::current()->getGEOInternals()->LevelSets, &l);
@@ -2338,7 +2393,7 @@ Colorify :
 	List_Read($4, i, &TheShape);
 	ColorShape(TheShape.Type, TheShape.Num, $2);
       }
-      List_Delete($4);      
+      List_Delete($4);
     }
 ;
 
@@ -2377,7 +2432,7 @@ Visibility :
     }
 ;
 
-//  C O M M A N D  
+//  C O M M A N D
 
 Command :
     tSTRING StringExpr tEND
@@ -2421,7 +2476,7 @@ Command :
       else
 	yymsg(0, "Unknown command '%s'", $1);
       Free($1); Free($2);
-    } 
+    }
   | tSTRING tSTRING '[' FExpr ']' StringExprVar tEND
     {
 #if defined(HAVE_POST)
@@ -2508,29 +2563,29 @@ Command :
 	yymsg(0, "Unknown 'Combine' command");
 #endif
       Free($2);
-    } 
+    }
    | tExit tEND
     {
       exit(0);
-    } 
+    }
    | tSyncModel tEND
     {
       // FIXME: this is a hack to force a transfer from the old DB to
-      // the new DB. This will become unnecessary if/when we fill the 
+      // the new DB. This will become unnecessary if/when we fill the
       // GModel directly during parsing.
       GModel::current()->importGEOInternals();
-    } 
+    }
    | tBoundingBox tEND
     {
       CTX::instance()->forcedBBox = 0;
       GModel::current()->importGEOInternals();
       SetBoundingBox();
-    } 
+    }
    | tBoundingBox '{' FExpr ',' FExpr ',' FExpr ',' FExpr ',' FExpr ',' FExpr '}' tEND
     {
       CTX::instance()->forcedBBox = 1;
       SetBoundingBox($3, $5, $7, $9, $11, $13);
-    } 
+    }
    | tDraw tEND
     {
 #if defined(HAVE_OPENGL)
@@ -2552,7 +2607,7 @@ Command :
     }
 ;
 
-// L O O P  
+// L O O P
 
 Loop :
     tFor '(' FExpr tDOTS FExpr ')'
@@ -2589,17 +2644,19 @@ Loop :
 	ImbricatedLoop = MAX_RECUR_LOOPS - 1;
       }
     }
-  | tFor tSTRING tIn '{' FExpr tDOTS FExpr '}' 
+  | tFor tSTRING tIn '{' FExpr tDOTS FExpr '}'
     {
       LoopControlVariablesTab[ImbricatedLoop][0] = $5;
       LoopControlVariablesTab[ImbricatedLoop][1] = $7;
       LoopControlVariablesTab[ImbricatedLoop][2] = 1.0;
       LoopControlVariablesNameTab[ImbricatedLoop] = $2;
-      gmsh_yysymbols[$2].resize(1);
-      gmsh_yysymbols[$2][0] = $5;
+      gmsh_yysymbol &s(gmsh_yysymbols[$2]);
+      s.list = false;
+      s.value.resize(1);
+      s.value[0] = $5;
       fgetpos(gmsh_yyin, &yyposImbricatedLoopsTab[ImbricatedLoop]);
       yylinenoImbricatedLoopsTab[ImbricatedLoop] = gmsh_yylineno;
-      if($5 > $7) 
+      if($5 > $7)
 	skip_until("For", "EndFor");
       else
 	ImbricatedLoop++;
@@ -2608,14 +2665,16 @@ Loop :
 	ImbricatedLoop = MAX_RECUR_LOOPS - 1;
       }
     }
-  | tFor tSTRING tIn '{' FExpr tDOTS FExpr tDOTS FExpr '}' 
+  | tFor tSTRING tIn '{' FExpr tDOTS FExpr tDOTS FExpr '}'
     {
       LoopControlVariablesTab[ImbricatedLoop][0] = $5;
       LoopControlVariablesTab[ImbricatedLoop][1] = $7;
       LoopControlVariablesTab[ImbricatedLoop][2] = $9;
       LoopControlVariablesNameTab[ImbricatedLoop] = $2;
-      gmsh_yysymbols[$2].resize(1);
-      gmsh_yysymbols[$2][0] = $5;
+      gmsh_yysymbol &s(gmsh_yysymbols[$2]);
+      s.list = false;
+      s.value.resize(1);
+      s.value[0] = $5;
       fgetpos(gmsh_yyin, &yyposImbricatedLoopsTab[ImbricatedLoop]);
       yylinenoImbricatedLoopsTab[ImbricatedLoop] = gmsh_yylineno;
       if(($9 > 0. && $5 > $7) || ($9 < 0. && $5 < $7))
@@ -2627,7 +2686,7 @@ Loop :
 	ImbricatedLoop = MAX_RECUR_LOOPS - 1;
       }
     }
-  | tEndFor 
+  | tEndFor
     {
       if(ImbricatedLoop <= 0){
 	yymsg(0, "Invalid For/EndFor loop");
@@ -2638,10 +2697,15 @@ Loop :
         const char *name = LoopControlVariablesNameTab[ImbricatedLoop - 1];
         if(name){
           if(!gmsh_yysymbols.count(name))
-            yymsg(0, "Unknown loop variable");
+            yymsg(0, "Unknown loop variable '%s'", name);
           else{
-            gmsh_yysymbols[name][0] += step;
-            LoopControlVariablesTab[ImbricatedLoop - 1][0] = gmsh_yysymbols[name][0];
+            gmsh_yysymbol &s(gmsh_yysymbols[name]);
+            if(!s.list && s.value.size()){
+              s.value[0] += step;
+              LoopControlVariablesTab[ImbricatedLoop - 1][0] = s.value[0];
+            }
+            else
+              yymsg(0, "Bad loop variable %s", name);
           }
         }
         else{
@@ -2670,14 +2734,14 @@ Loop :
       if(!FunctionManager::Instance()->leaveFunction
          (&gmsh_yyin, gmsh_yyname, gmsh_yylineno))
 	yymsg(0, "Error while exiting function");
-    } 
+    }
   | tCall tSTRING tEND
     {
       if(!FunctionManager::Instance()->enterFunction
          ($2, &gmsh_yyin, gmsh_yyname, gmsh_yylineno))
 	yymsg(0, "Unknown function %s", $2);
       //FIXME: wee leak $2
-    } 
+    }
   | tIf '(' FExpr ')'
     {
       if(!$3) skip_until("If", "EndIf");
@@ -2688,13 +2752,13 @@ Loop :
 ;
 
 
-//  E X T R U D E 
+//  E X T R U D E
 
 Extrude :
     tExtrude VExpr '{' ListOfShapes '}'
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShapes(TRANSLATE, $4, 
+      ExtrudeShapes(TRANSLATE, $4,
 		    $2[0], $2[1], $2[2], 0., 0., 0., 0., 0., 0., 0.,
 		    NULL, $$);
       List_Delete($4);
@@ -2702,7 +2766,7 @@ Extrude :
   | tExtrude '{' VExpr ',' VExpr ',' FExpr '}' '{' ListOfShapes '}'
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShapes(ROTATE, $10, 
+      ExtrudeShapes(ROTATE, $10,
 		    0., 0., 0., $3[0], $3[1], $3[2], $5[0], $5[1], $5[2], $7,
 		    NULL, $$);
       List_Delete($10);
@@ -2710,12 +2774,12 @@ Extrude :
   | tExtrude '{' VExpr ',' VExpr ',' VExpr ',' FExpr '}' '{' ListOfShapes '}'
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShapes(TRANSLATE_ROTATE, $12, 
+      ExtrudeShapes(TRANSLATE_ROTATE, $12,
 		    $3[0], $3[1], $3[2], $5[0], $5[1], $5[2], $7[0], $7[1], $7[2], $9,
 		    NULL, $$);
       List_Delete($12);
     }
-  | tExtrude VExpr '{' ListOfShapes 
+  | tExtrude VExpr '{' ListOfShapes
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
@@ -2723,12 +2787,12 @@ Extrude :
                        ExtrudeParameters '}'
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShapes(TRANSLATE, $4, 
+      ExtrudeShapes(TRANSLATE, $4,
 		    $2[0], $2[1], $2[2], 0., 0., 0., 0., 0., 0., 0.,
 		    &extr, $$);
       List_Delete($4);
     }
-  | tExtrude '{' VExpr ',' VExpr ',' FExpr '}' '{' ListOfShapes 
+  | tExtrude '{' VExpr ',' VExpr ',' FExpr '}' '{' ListOfShapes
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
@@ -2736,7 +2800,7 @@ Extrude :
                                                    ExtrudeParameters '}'
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShapes(ROTATE, $10, 
+      ExtrudeShapes(ROTATE, $10,
 		    0., 0., 0., $3[0], $3[1], $3[2], $5[0], $5[1], $5[2], $7,
 		    &extr, $$);
       List_Delete($10);
@@ -2749,12 +2813,12 @@ Extrude :
                                                              ExtrudeParameters '}'
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShapes(TRANSLATE_ROTATE, $12, 
+      ExtrudeShapes(TRANSLATE_ROTATE, $12,
 		    $3[0], $3[1], $3[2], $5[0], $5[1], $5[2], $7[0], $7[1], $7[2], $9,
 		    &extr, $$);
       List_Delete($12);
     }
-  | tExtrude '{' ListOfShapes 
+  | tExtrude '{' ListOfShapes
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
@@ -2770,67 +2834,67 @@ Extrude :
   | tExtrude tPoint '{' FExpr ',' VExpr '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE, MSH_POINT, (int)$4, 
+      ExtrudeShape(TRANSLATE, MSH_POINT, (int)$4,
 		   $6[0], $6[1], $6[2], 0., 0., 0., 0., 0., 0., 0.,
 		   NULL, $$);
     }
   | tExtrude tLine '{' FExpr ',' VExpr '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE, MSH_SEGM_LINE, (int)$4, 
+      ExtrudeShape(TRANSLATE, MSH_SEGM_LINE, (int)$4,
 		   $6[0], $6[1], $6[2], 0., 0., 0., 0., 0., 0., 0.,
 		   NULL, $$);
     }
   | tExtrude tSurface '{' FExpr ',' VExpr '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE, MSH_SURF_PLAN, (int)$4, 
+      ExtrudeShape(TRANSLATE, MSH_SURF_PLAN, (int)$4,
 		   $6[0], $6[1], $6[2], 0., 0., 0., 0., 0., 0., 0.,
 		   NULL, $$);
     }
   | tExtrude tPoint '{' FExpr ',' VExpr ',' VExpr ',' FExpr '}'  tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(ROTATE, MSH_POINT, (int)$4, 
+      ExtrudeShape(ROTATE, MSH_POINT, (int)$4,
 		   0., 0., 0., $6[0], $6[1], $6[2], $8[0], $8[1], $8[2], $10,
 		   NULL, $$);
     }
   | tExtrude tLine '{' FExpr ',' VExpr ',' VExpr ',' FExpr '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(ROTATE, MSH_SEGM_LINE, (int)$4, 
+      ExtrudeShape(ROTATE, MSH_SEGM_LINE, (int)$4,
 		   0., 0., 0., $6[0], $6[1], $6[2], $8[0], $8[1], $8[2], $10,
 		   NULL, $$);
     }
   | tExtrude tSurface '{' FExpr ',' VExpr ',' VExpr ',' FExpr '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(ROTATE, MSH_SURF_PLAN, (int)$4, 
+      ExtrudeShape(ROTATE, MSH_SURF_PLAN, (int)$4,
 		   0., 0., 0., $6[0], $6[1], $6[2], $8[0], $8[1], $8[2], $10,
 		   NULL, $$);
     }
   | tExtrude tPoint '{' FExpr ',' VExpr ',' VExpr ',' VExpr ',' FExpr'}'  tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE_ROTATE, MSH_POINT, (int)$4, 
+      ExtrudeShape(TRANSLATE_ROTATE, MSH_POINT, (int)$4,
 		   $6[0], $6[1], $6[2], $8[0], $8[1], $8[2], $10[0], $10[1], $10[2], $12,
 		   NULL, $$);
     }
   | tExtrude tLine '{' FExpr ',' VExpr ',' VExpr ',' VExpr ',' FExpr '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE_ROTATE, MSH_SEGM_LINE, (int)$4, 
+      ExtrudeShape(TRANSLATE_ROTATE, MSH_SEGM_LINE, (int)$4,
 		   $6[0], $6[1], $6[2], $8[0], $8[1], $8[2], $10[0], $10[1], $10[2], $12,
 		   NULL, $$);
     }
   | tExtrude tSurface '{' FExpr ',' VExpr ',' VExpr ',' VExpr ',' FExpr '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE_ROTATE, MSH_SURF_PLAN, (int)$4, 
+      ExtrudeShape(TRANSLATE_ROTATE, MSH_SURF_PLAN, (int)$4,
 		   $6[0], $6[1], $6[2], $8[0], $8[1], $8[2], $10[0], $10[1], $10[2], $12,
 		   NULL, $$);
     }
-  | tExtrude tPoint '{' FExpr ',' VExpr '}' 
+  | tExtrude tPoint '{' FExpr ',' VExpr '}'
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
@@ -2838,7 +2902,7 @@ Extrude :
                     '{' ExtrudeParameters '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE, MSH_POINT, (int)$4, 
+      ExtrudeShape(TRANSLATE, MSH_POINT, (int)$4,
 		   $6[0], $6[1], $6[2], 0., 0., 0., 0., 0., 0., 0.,
 		   &extr, $$);
     }
@@ -2850,11 +2914,11 @@ Extrude :
                    '{' ExtrudeParameters '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE, MSH_SEGM_LINE, (int)$4, 
+      ExtrudeShape(TRANSLATE, MSH_SEGM_LINE, (int)$4,
 		   $6[0], $6[1], $6[2], 0., 0., 0., 0., 0., 0., 0.,
 		   &extr, $$);
     }
-  | tExtrude tSurface '{' FExpr ',' VExpr '}' 
+  | tExtrude tSurface '{' FExpr ',' VExpr '}'
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
@@ -2862,7 +2926,7 @@ Extrude :
                       '{' ExtrudeParameters '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE, MSH_SURF_PLAN, (int)$4, 
+      ExtrudeShape(TRANSLATE, MSH_SURF_PLAN, (int)$4,
 		   $6[0], $6[1], $6[2], 0., 0., 0., 0., 0., 0., 0.,
 		   &extr, $$);
     }
@@ -2874,7 +2938,7 @@ Extrude :
                     '{' ExtrudeParameters '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(ROTATE, MSH_POINT, (int)$4, 
+      ExtrudeShape(ROTATE, MSH_POINT, (int)$4,
 		   0., 0., 0., $6[0], $6[1], $6[2], $8[0], $8[1], $8[2], $10,
 		   &extr, $$);
     }
@@ -2886,7 +2950,7 @@ Extrude :
                    '{' ExtrudeParameters '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(ROTATE, MSH_SEGM_LINE, (int)$4, 
+      ExtrudeShape(ROTATE, MSH_SEGM_LINE, (int)$4,
 		   0., 0., 0., $6[0], $6[1], $6[2], $8[0], $8[1], $8[2], $10,
 		   &extr, $$);
     }
@@ -2898,11 +2962,11 @@ Extrude :
                       '{' ExtrudeParameters '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(ROTATE, MSH_SURF_PLAN, (int)$4, 
+      ExtrudeShape(ROTATE, MSH_SURF_PLAN, (int)$4,
 		   0., 0., 0., $6[0], $6[1], $6[2], $8[0], $8[1], $8[2], $10,
 		   &extr, $$);
     }
-  | tExtrude tPoint '{' FExpr ',' VExpr ',' VExpr ',' VExpr ',' FExpr'}' 
+  | tExtrude tPoint '{' FExpr ',' VExpr ',' VExpr ',' VExpr ',' FExpr'}'
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
@@ -2910,11 +2974,11 @@ Extrude :
                     '{' ExtrudeParameters '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE_ROTATE, MSH_POINT, (int)$4, 
+      ExtrudeShape(TRANSLATE_ROTATE, MSH_POINT, (int)$4,
 		   $6[0], $6[1], $6[2], $8[0], $8[1], $8[2], $10[0], $10[1], $10[2], $12,
 		   &extr, $$);
     }
-  | tExtrude tLine '{' FExpr ',' VExpr ',' VExpr ',' VExpr ',' FExpr '}' 
+  | tExtrude tLine '{' FExpr ',' VExpr ',' VExpr ',' VExpr ',' FExpr '}'
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
@@ -2922,11 +2986,11 @@ Extrude :
                    '{' ExtrudeParameters '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE_ROTATE, MSH_SEGM_LINE, (int)$4, 
+      ExtrudeShape(TRANSLATE_ROTATE, MSH_SEGM_LINE, (int)$4,
 		   $6[0], $6[1], $6[2], $8[0], $8[1], $8[2], $10[0], $10[1], $10[2], $12,
 		   &extr, $$);
     }
-  | tExtrude tSurface '{' FExpr ',' VExpr ',' VExpr ',' VExpr ',' FExpr '}' 
+  | tExtrude tSurface '{' FExpr ',' VExpr ',' VExpr ',' VExpr ',' FExpr '}'
     {
       extr.mesh.ExtrudeMesh = extr.mesh.Recombine = false;
       extr.mesh.QuadToTri = NO_QUADTRI;
@@ -2934,7 +2998,7 @@ Extrude :
                       '{' ExtrudeParameters '}' tEND
     {
       $$ = List_Create(2, 1, sizeof(Shape));
-      ExtrudeShape(TRANSLATE_ROTATE, MSH_SURF_PLAN, (int)$4, 
+      ExtrudeShape(TRANSLATE_ROTATE, MSH_SURF_PLAN, (int)$4,
 		   $6[0], $6[1], $6[2], $8[0], $8[1], $8[2], $10[0], $10[1], $10[2], $12,
 		   &extr, $$);
     }
@@ -2997,7 +3061,7 @@ ExtrudeParameter :
 	}
       }
       else
-	yymsg(0, "Wrong layer definition {%d, %d, %d}", List_Nbr($3), 
+	yymsg(0, "Wrong layer definition {%d, %d, %d}", List_Nbr($3),
 	      List_Nbr($5), List_Nbr($7));
       List_Delete($3);
       List_Delete($5);
@@ -3054,7 +3118,7 @@ ExtrudeParameter :
 
 //  T R A N S F I N I T E ,   R E C O M B I N E   &   S M O O T H I N G
 
-TransfiniteType : 
+TransfiniteType :
     {
       $$[0] = $$[1] = 1.;
     }
@@ -3073,7 +3137,7 @@ TransfiniteType :
     }
 ;
 
-TransfiniteArrangement : 
+TransfiniteArrangement :
     {
       $$ = -1; // left
     }
@@ -3098,7 +3162,7 @@ TransfiniteCorners :
      $$ = $2;
    }
 
-RecombineAngle : 
+RecombineAngle :
     {
       $$ = 45;
     }
@@ -3108,7 +3172,7 @@ RecombineAngle :
     }
 ;
 
-Transfinite : 
+Transfinite :
     tTransfinite tLine ListOfDoubleOrAll tAFFECT FExpr TransfiniteType tEND
     {
       int type = (int)$6[0];
@@ -3126,7 +3190,7 @@ Transfinite :
           }
         }
         else{
-          for(GModel::eiter it = GModel::current()->firstEdge(); 
+          for(GModel::eiter it = GModel::current()->firstEdge();
               it != GModel::current()->lastEdge(); it++){
             (*it)->meshAttributes.Method = MESH_TRANSFINITE;
             (*it)->meshAttributes.nbPointsTransfinite = ($5 > 2) ? (int)$5 : 2;
@@ -3184,7 +3248,7 @@ Transfinite :
             }
           }
           else{
-            for(GModel::fiter it = GModel::current()->firstFace(); 
+            for(GModel::fiter it = GModel::current()->firstFace();
                 it != GModel::current()->lastFace(); it++){
               (*it)->meshAttributes.Method = MESH_TRANSFINITE;
               (*it)->meshAttributes.transfiniteArrangement = $5;
@@ -3259,7 +3323,7 @@ Transfinite :
             }
           }
           else{
-            for(GModel::riter it = GModel::current()->firstRegion(); 
+            for(GModel::riter it = GModel::current()->firstRegion();
                 it != GModel::current()->lastRegion(); it++){
               (*it)->meshAttributes.Method = MESH_TRANSFINITE;
             }
@@ -3319,7 +3383,7 @@ Transfinite :
           }
         }
         else{
-          for(GModel::riter it = GModel::current()->firstRegion(); 
+          for(GModel::riter it = GModel::current()->firstRegion();
               it != GModel::current()->lastRegion(); it++)
             (*it)->meshAttributes.QuadTri = TRANSFINITE_QUADTRI_1;
         }
@@ -3356,7 +3420,7 @@ Transfinite :
           }
         }
         else{
-          for(GModel::fiter it = GModel::current()->firstFace(); 
+          for(GModel::fiter it = GModel::current()->firstFace();
               it != GModel::current()->lastFace(); it++){
             (*it)->meshAttributes.recombine = 1;
             (*it)->meshAttributes.recombineAngle = $4;
@@ -3410,7 +3474,7 @@ Transfinite :
 
 //  P E R I O D I C   M E S H I N G   C O N S T R A I N T S
 
-Periodic : 
+Periodic :
     tPeriodic tLine ListOfDouble tAFFECT ListOfDouble tEND
     {
       if(List_Nbr($5) != List_Nbr($3)){
@@ -3426,7 +3490,7 @@ Periodic :
           int j_slave  = (int)d_slave;
           Curve *c_slave = FindCurve(abs(j_slave));
           if(c_slave){
-            c_slave->meshMaster = j_master;	  
+            c_slave->meshMaster = j_master;
           }
           else{
             GEdge *ge = GModel::current()->getEdgeByTag(abs(j_slave));
@@ -3438,7 +3502,7 @@ Periodic :
       List_Delete($3);
       List_Delete($5);
     }
-  | tPeriodic tSurface FExpr '{' RecursiveListOfDouble '}' tAFFECT FExpr 
+  | tPeriodic tSurface FExpr '{' RecursiveListOfDouble '}' tAFFECT FExpr
     '{' RecursiveListOfDouble '}'  tEND
     {
       if (List_Nbr($5) != List_Nbr($10)){
@@ -3454,7 +3518,7 @@ Periodic :
           for (int i = 0; i < List_Nbr($5); i++){
             double dm, ds;
             List_Read($5, i, &ds);
-            List_Read($10, i, &dm);	  
+            List_Read($10, i, &dm);
             s_slave->edgeCounterparts[(int)ds] = (int)dm;
           }
         }
@@ -3478,12 +3542,12 @@ Periodic :
 ;
 
 
-//  E M B E D D I N G  C U R V E S   A N D  P O I N T S   I N T O   S U R F A C E S  
+//  E M B E D D I N G  C U R V E S   A N D  P O I N T S   I N T O   S U R F A C E S
 //    A N D   V O L U M E S
 
-Embedding : 
+Embedding :
     tPoint '{' RecursiveListOfDouble '}' tIn tSurface '{' FExpr '}' tEND
-    { 
+    {
       Surface *s = FindSurface((int)$8);
       if(s){
 	setSurfaceEmbeddedPoints(s, $3);
@@ -3539,13 +3603,13 @@ Embedding :
 
 //  C O H E R E N C E
 
-Coherence : 
+Coherence :
     tCoherence tEND
-    { 
+    {
       ReplaceAllDuplicates();
     }
   | tCoherence tSTRING tEND
-    { 
+    {
       if(!strcmp($2, "Geometry"))
         ReplaceAllDuplicates();
       else if(!strcmp($2, "Mesh"))
@@ -3555,7 +3619,7 @@ Coherence :
       Free($2);
     }
   | tCoherence tPoint '{' RecursiveListOfDouble '}' tEND
-    { 
+    {
       if(List_Nbr($4) >= 2){
         double d;
         List_Read($4, 0, &d);
@@ -3589,150 +3653,131 @@ Coherence :
 
 //  H O M O L O G Y
 
-Homology : 
+Homology :
 
     tHomRank '(' StringExprVar ')' tAFFECT '{' ListOfDouble ',' ListOfDouble '}' tEND
     {
-    
-    List_T *temp = ListOfDouble2ListOfInt($7);
-    std::vector<int> domain;
-    
-    for (int i = 0; i < List_Nbr(temp); i++){
-      int item = 0;
-      List_Read(temp, i, &item);
-      domain.push_back(item);
-    }
-    List_Delete($7);
-    List_Delete(temp);
-    
-    List_T *temp2 = ListOfDouble2ListOfInt($9);
-    std::vector<int> subdomain;
-    for (int i = 0; i < List_Nbr(temp2); i++){
-      int item = 0;
-      List_Read(temp2, i, &item);
-      subdomain.push_back(item);
-    }
-    List_Delete($9);
-    List_Delete(temp2);
-    
-    std::string fileName = "";
-    fileName = $3;
-    
-    #if defined(HAVE_KBIPACK)
-    Homology* homology = new Homology(GModel::current(), domain, subdomain);
-    homology->setFileName(fileName);
-    homology->computeRanks();
-    delete homology;
-    #else
-    yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
-    #endif
-    }      
-    
+      List_T *temp = ListOfDouble2ListOfInt($7);
+      std::vector<int> domain;
+      for (int i = 0; i < List_Nbr(temp); i++){
+        int item = 0;
+        List_Read(temp, i, &item);
+        domain.push_back(item);
+      }
+      List_Delete($7);
+      List_Delete(temp);
+      List_T *temp2 = ListOfDouble2ListOfInt($9);
+      std::vector<int> subdomain;
+      for (int i = 0; i < List_Nbr(temp2); i++){
+        int item = 0;
+        List_Read(temp2, i, &item);
+        subdomain.push_back(item);
+      }
+      List_Delete($9);
+      List_Delete(temp2);
+      std::string fileName = "";
+      fileName = $3;
+#if defined(HAVE_KBIPACK)
+      Homology* homology = new Homology(GModel::current(), domain, subdomain);
+      homology->setFileName(fileName);
+      homology->computeRanks();
+      delete homology;
+#else
+      yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
+#endif
+    }
   | tHomGen '(' StringExprVar ')' tAFFECT '{' ListOfDouble ',' ListOfDouble '}' tEND
     {
-    List_T *temp = ListOfDouble2ListOfInt($7);
-    std::vector<int> domain;
-    
-    for (int i = 0; i < List_Nbr(temp); i++){
-      int item = 0;
-      List_Read(temp, i, &item);
-      domain.push_back(item);
-    }
-    List_Delete($7);
-    List_Delete(temp);
-    
-    List_T *temp2 = ListOfDouble2ListOfInt($9);
-    std::vector<int> subdomain;
-    for (int i = 0; i < List_Nbr(temp2); i++){
-      int item = 0;
-      List_Read(temp2, i, &item);
-      subdomain.push_back(item);
-    }
-    List_Delete($9);
-    List_Delete(temp2);
-    
-    std::string fileName = "";
-    fileName = $3;
-    
-    #if defined(HAVE_KBIPACK)
-    Homology* homology = new Homology(GModel::current(), domain, subdomain);
-    homology->setFileName(fileName);
-    homology->findGenerators();  
-    delete homology;
-    #else
-    yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
-    #endif
-    }
-    
+      List_T *temp = ListOfDouble2ListOfInt($7);
+      std::vector<int> domain;
+      for (int i = 0; i < List_Nbr(temp); i++){
+        int item = 0;
+        List_Read(temp, i, &item);
+        domain.push_back(item);
+      }
+      List_Delete($7);
+      List_Delete(temp);
+      List_T *temp2 = ListOfDouble2ListOfInt($9);
+      std::vector<int> subdomain;
+      for (int i = 0; i < List_Nbr(temp2); i++){
+        int item = 0;
+        List_Read(temp2, i, &item);
+        subdomain.push_back(item);
+      }
+      List_Delete($9);
+      List_Delete(temp2);
+      std::string fileName = "";
+      fileName = $3;
+#if defined(HAVE_KBIPACK)
+      Homology* homology = new Homology(GModel::current(), domain, subdomain);
+      homology->setFileName(fileName);
+      homology->findGenerators();
+      delete homology;
+#else
+      yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
+#endif
+    }
   | tHomCut '(' StringExprVar ')' tAFFECT '{' ListOfDouble ',' ListOfDouble '}' tEND
     {
-    List_T *temp = ListOfDouble2ListOfInt($7);
-    std::vector<int> domain;
-    
-    for (int i = 0; i < List_Nbr(temp); i++){
-      int item = 0;
-      List_Read(temp, i, &item);
-      domain.push_back(item);
-    }
-    List_Delete($7);
-    List_Delete(temp);
-    
-    List_T *temp2 = ListOfDouble2ListOfInt($9);
-    std::vector<int> subdomain;
-    for (int i = 0; i < List_Nbr(temp2); i++){
-      int item = 0;
-      List_Read(temp2, i, &item);
-      subdomain.push_back(item);
-    }
-    List_Delete($9);
-    List_Delete(temp2);
-    
-    std::string fileName = "";
-    fileName = $3;
-    
-    #if defined(HAVE_KBIPACK)
-    Homology* homology = new Homology(GModel::current(), domain, subdomain);
-    homology->setFileName(fileName);
-    homology->findDualGenerators();
-    delete homology;
-    #else
-    yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
-    #endif
-    }
-    | tHomSeq '(' StringExprVar ')' tAFFECT '{' ListOfDouble ',' ListOfDouble '}' tEND
-    {
-    List_T *temp = ListOfDouble2ListOfInt($7);
-    std::vector<int> domain;
-    
-    for (int i = 0; i < List_Nbr(temp); i++){
-      int item = 0;
-      List_Read(temp, i, &item);
-      domain.push_back(item);
-    }
-    List_Delete($7);
-    List_Delete(temp);
-    
-    List_T *temp2 = ListOfDouble2ListOfInt($9);
-    std::vector<int> subdomain;
-    for (int i = 0; i < List_Nbr(temp2); i++){
-      int item = 0;
-      List_Read(temp2, i, &item);
-      subdomain.push_back(item);
-    }
-    List_Delete($9);
-    List_Delete(temp2);
-    
-    std::string fileName = "";
-    fileName = $3;
-    
-    #if defined(HAVE_KBIPACK)
-    Homology* homology = new Homology(GModel::current(), domain, subdomain);
-    homology->setFileName(fileName);
-    homology->findHomSequence();
-    delete homology;
-    #else
-    yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
-    #endif
+      List_T *temp = ListOfDouble2ListOfInt($7);
+      std::vector<int> domain;
+      for (int i = 0; i < List_Nbr(temp); i++){
+        int item = 0;
+        List_Read(temp, i, &item);
+        domain.push_back(item);
+      }
+      List_Delete($7);
+      List_Delete(temp);
+      List_T *temp2 = ListOfDouble2ListOfInt($9);
+      std::vector<int> subdomain;
+      for (int i = 0; i < List_Nbr(temp2); i++){
+        int item = 0;
+        List_Read(temp2, i, &item);
+        subdomain.push_back(item);
+      }
+      List_Delete($9);
+      List_Delete(temp2);
+      std::string fileName = "";
+      fileName = $3;
+#if defined(HAVE_KBIPACK)
+      Homology* homology = new Homology(GModel::current(), domain, subdomain);
+      homology->setFileName(fileName);
+      homology->findDualGenerators();
+      delete homology;
+#else
+      yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
+#endif
+    }
+  | tHomSeq '(' StringExprVar ')' tAFFECT '{' ListOfDouble ',' ListOfDouble '}' tEND
+    {
+      List_T *temp = ListOfDouble2ListOfInt($7);
+      std::vector<int> domain;
+      for (int i = 0; i < List_Nbr(temp); i++){
+        int item = 0;
+        List_Read(temp, i, &item);
+        domain.push_back(item);
+      }
+      List_Delete($7);
+      List_Delete(temp);
+      List_T *temp2 = ListOfDouble2ListOfInt($9);
+      std::vector<int> subdomain;
+      for (int i = 0; i < List_Nbr(temp2); i++){
+        int item = 0;
+        List_Read(temp2, i, &item);
+        subdomain.push_back(item);
+      }
+      List_Delete($9);
+      List_Delete(temp2);
+      std::string fileName = "";
+      fileName = $3;
+#if defined(HAVE_KBIPACK)
+      Homology* homology = new Homology(GModel::current(), domain, subdomain);
+      homology->setFileName(fileName);
+      homology->findHomSequence();
+      delete homology;
+#else
+      yymsg(0, "Gmsh needs to be configured with option Kbipack to use homology computation");
+#endif
     }
 ;
 
@@ -3748,11 +3793,11 @@ FExpr :
   | FExpr '+' FExpr                  { $$ = $1 + $3;      }
   | FExpr '*' FExpr                  { $$ = $1 * $3;      }
   | FExpr '/' FExpr
-    { 
+    {
       if(!$3)
 	yymsg(0, "Division by zero in '%g / %g'", $1, $3);
       else
-	$$ = $1 / $3;     
+	$$ = $1 / $3;
     }
   | FExpr '%' FExpr                  { $$ = (int)$1 % (int)$3;  }
   | FExpr '^' FExpr                  { $$ = pow($1, $3);  }
@@ -3833,12 +3878,13 @@ FExpr_Single :
 	$$ = 0.;
       }
       else{
-        if(gmsh_yysymbols[$1].empty()){
+        gmsh_yysymbol &s(gmsh_yysymbols[$1]);
+        if(s.value.empty()){
           yymsg(0, "Uninitialized variable '%s'", $1);
           $$ = 0.;
         }
         else
-          $$ = gmsh_yysymbols[$1][0];
+          $$ = s.value[0];
       }
       Free($1);
     }
@@ -3854,12 +3900,13 @@ FExpr_Single :
 	$$ = 0.;
       }
       else{
-        if(gmsh_yysymbols[tmpstring].empty()){
+        gmsh_yysymbol &s(gmsh_yysymbols[tmpstring]);
+        if(s.value.empty()){
           yymsg(0, "Uninitialized variable '%s'", tmpstring);
           $$ = 0.;
         }
         else
-          $$ = gmsh_yysymbols[tmpstring][0];
+          $$ = s.value[0];
       }
       Free($1);
     }
@@ -3870,12 +3917,15 @@ FExpr_Single :
 	yymsg(0, "Unknown variable '%s'", $1);
 	$$ = 0.;
       }
-      else if((int)gmsh_yysymbols[$1].size() < index + 1){
-	yymsg(0, "Uninitialized variable '%s[%d]'", $1, index);
-	$$ = 0.;
+      else{
+        gmsh_yysymbol &s(gmsh_yysymbols[$1]);
+        if((int)s.value.size() < index + 1){
+          yymsg(0, "Uninitialized variable '%s[%d]'", $1, index);
+          $$ = 0.;
+        }
+        else
+          $$ = s.value[index];
       }
-      else
-	$$ = gmsh_yysymbols[$1][index];
       Free($1);
     }
   | '#' tSTRING '[' ']'
@@ -3884,8 +3934,10 @@ FExpr_Single :
 	yymsg(0, "Unknown variable '%s'", $2);
 	$$ = 0.;
       }
-      else
-	$$ = gmsh_yysymbols[$2].size();
+      else{
+        gmsh_yysymbol &s(gmsh_yysymbols[$2]);
+	$$ = s.value.size();
+      }
       Free($2);
     }
   | tSTRING NumericIncrement
@@ -3895,12 +3947,13 @@ FExpr_Single :
 	$$ = 0.;
       }
       else{
-        if(gmsh_yysymbols[$1].empty()){
+        gmsh_yysymbol &s(gmsh_yysymbols[$1]);
+        if(s.value.empty()){
           yymsg(0, "Uninitialized variable '%s'", $1);
           $$ = 0.;
         }
         else
-          $$ = (gmsh_yysymbols[$1][0] += $2);
+          $$ = (s.value[0] += $2);
       }
       Free($1);
     }
@@ -3911,23 +3964,26 @@ FExpr_Single :
 	yymsg(0, "Unknown variable '%s'", $1);
 	$$ = 0.;
       }
-      else if((int)gmsh_yysymbols[$1].size() < index + 1){
-	yymsg(0, "Uninitialized variable '%s[%d]'", $1, index);
-	$$ = 0.;
+      else{
+        gmsh_yysymbol &s(gmsh_yysymbols[$1]);
+        if((int)s.value.size() < index + 1){
+          yymsg(0, "Uninitialized variable '%s[%d]'", $1, index);
+          $$ = 0.;
+        }
+        else
+          $$ = (s.value[index] += $5);
       }
-      else
-	$$ = (gmsh_yysymbols[$1][index] += $5);
       Free($1);
     }
 
   // Option Strings
 
-  | tSTRING '.' tSTRING 
+  | tSTRING '.' tSTRING
     {
       NumberOption(GMSH_GET, $1, 0, $3, $$);
       Free($1); Free($3);
     }
-  | tSTRING '[' FExpr ']' '.' tSTRING 
+  | tSTRING '[' FExpr ']' '.' tSTRING
     {
       NumberOption(GMSH_GET, $1, (int)$3, $6, $$);
       Free($1); Free($6);
@@ -3953,7 +4009,7 @@ FExpr_Single :
       Free($1); Free($6);
     }
   | tGetValue '(' StringExprVar ',' FExpr ')'
-    { 
+    {
       $$ = Msg::GetValue($3, $5);
       Free($3);
     }
@@ -3969,11 +4025,11 @@ VExpr :
       for(int i = 0; i < 5; i++) $$[i] = -$2[i];
     }
   | '+' VExpr %prec UNARYPREC
-    { 
+    {
       for(int i = 0; i < 5; i++) $$[i] = $2[i];
     }
   | VExpr '-' VExpr
-    { 
+    {
       for(int i = 0; i < 5; i++) $$[i] = $1[i] - $3[i];
     }
   | VExpr '+' VExpr
@@ -3984,11 +4040,11 @@ VExpr :
 
 VExpr_Single :
     '{' FExpr ',' FExpr ',' FExpr ',' FExpr ',' FExpr  '}'
-    { 
+    {
       $$[0] = $2;  $$[1] = $4;  $$[2] = $6;  $$[3] = $8; $$[4] = $10;
     }
   | '{' FExpr ',' FExpr ',' FExpr ',' FExpr '}'
-    { 
+    {
       $$[0] = $2;  $$[1] = $4;  $$[2] = $6;  $$[3] = $8; $$[4] = 1.0;
     }
   | '{' FExpr ',' FExpr ',' FExpr '}'
@@ -4051,9 +4107,9 @@ ListOfDouble :
 ;
 
 ListOfDoubleOrAll :
-    ListOfDouble 
-    { 
-      $$ = $1; 
+    ListOfDouble
+    {
+      $$ = $1;
     }
   | tBIGSTR
     {
@@ -4084,15 +4140,15 @@ FExpr_Multi :
       }
     }
   | FExpr tDOTS FExpr
-    { 
-      $$ = List_Create(2, 1, sizeof(double)); 
-      for(double d = $1; ($1 < $3) ? (d <= $3) : (d >= $3); 
-          ($1 < $3) ? (d += 1.) : (d -= 1.)) 
+    {
+      $$ = List_Create(2, 1, sizeof(double));
+      for(double d = $1; ($1 < $3) ? (d <= $3) : (d >= $3);
+          ($1 < $3) ? (d += 1.) : (d -= 1.))
 	List_Add($$, &d);
     }
   | FExpr tDOTS FExpr tDOTS FExpr
     {
-      $$ = List_Create(2, 1, sizeof(double)); 
+      $$ = List_Create(2, 1, sizeof(double));
       if(!$5 || ($1 < $3 && $5 < 0) || ($1 > $3 && $5 > 0)){
         yymsg(0, "Wrong increment in '%g:%g:%g'", $1, $3, $5);
 	List_Add($$, &($1));
@@ -4107,7 +4163,7 @@ FExpr_Multi :
       // This allows to ensure e.g. that relative point positions are
       // always conserved
       Vertex *v = FindPoint((int)$3);
-      $$ = List_Create(3, 1, sizeof(double));      
+      $$ = List_Create(3, 1, sizeof(double));
       if(!v) {
 	yymsg(0, "Unknown point '%d'", (int)$3);
 	double d = 0.0;
@@ -4162,23 +4218,38 @@ FExpr_Multi :
       $$ = List_Create(2, 1, sizeof(double));
       if(!gmsh_yysymbols.count($1))
 	yymsg(0, "Unknown variable '%s'", $1);
-      else
-	for(unsigned int i = 0; i < gmsh_yysymbols[$1].size(); i++)
-	  List_Add($$, &gmsh_yysymbols[$1][i]);
+      else{
+        gmsh_yysymbol &s(gmsh_yysymbols[$1]);
+	for(unsigned int i = 0; i < s.value.size(); i++)
+	  List_Add($$, &s.value[i]);
+      }
       Free($1);
     }
+  | tList '[' tSTRING ']'
+    {
+      $$ = List_Create(2, 1, sizeof(double));
+      if(!gmsh_yysymbols.count($3))
+	yymsg(0, "Unknown variable '%s'", $3);
+      else{
+        gmsh_yysymbol &s(gmsh_yysymbols[$3]);
+	for(unsigned int i = 0; i < s.value.size(); i++)
+	  List_Add($$, &s.value[i]);
+      }
+      Free($3);
+    }
   | tSTRING '[' '{' RecursiveListOfDouble '}' ']'
     {
       $$ = List_Create(2, 1, sizeof(double));
       if(!gmsh_yysymbols.count($1))
 	yymsg(0, "Unknown variable '%s'", $1);
       else{
+        gmsh_yysymbol &s(gmsh_yysymbols[$1]);
 	for(int i = 0; i < List_Nbr($4); i++){
 	  int index = (int)(*(double*)List_Pointer_Fast($4, i));
-	  if((int)gmsh_yysymbols[$1].size() < index + 1)
+	  if((int)s.value.size() < index + 1)
 	    yymsg(0, "Uninitialized variable '%s[%d]'", $1, index);
 	  else
-	    List_Add($$, &gmsh_yysymbols[$1][index]);
+	    List_Add($$, &s.value[index]);
 	}
       }
       Free($1);
@@ -4235,7 +4306,7 @@ ColorExpr :
       if(flag) yymsg(0, "Unknown color '%s'", $1);
       Free($1);
     }
-  | tSTRING '.' tColor '.' tSTRING 
+  | tSTRING '.' tColor '.' tSTRING
     {
       unsigned int val = 0;
       ColorOption(GMSH_GET, $1, 0, $5, val);
@@ -4256,7 +4327,7 @@ ListOfColor :
       if(!ct)
 	yymsg(0, "View[%d] does not exist", (int)$3);
       else{
-	for(int i = 0; i < ct->size; i++) 
+	for(int i = 0; i < ct->size; i++)
 	  List_Add($$, &ct->table[i]);
       }
       Free($1);
@@ -4294,7 +4365,7 @@ StringExprVar :
       }
     }
   | tSTRING '.' tSTRING
-    { 
+    {
       std::string out;
       StringOption(GMSH_GET, $1, 0, $3, out);
       $$ = (char*)Malloc((out.size() + 1) * sizeof(char));
@@ -4302,7 +4373,7 @@ StringExprVar :
       Free($1); Free($3);
     }
   | tSTRING '[' FExpr ']' '.' tSTRING
-    { 
+    {
       std::string out;
       StringOption(GMSH_GET, $1, (int)$3, $6, out);
       $$ = (char*)Malloc((out.size() + 1) * sizeof(char));
@@ -4325,7 +4396,7 @@ StringExpr :
       $$[strlen($$) - 1] = '\0';
     }
   | tGetEnv '(' StringExprVar ')'
-    { 
+    {
       const char *env = GetEnvironmentVar($3);
       if(!env) env = "";
       $$ = (char *)Malloc((sizeof(env) + 1) * sizeof(char));
@@ -4333,7 +4404,7 @@ StringExpr :
       Free($3);
     }
   | tGetString '(' StringExprVar ',' StringExprVar ')'
-    { 
+    {
       std::string s = Msg::GetString($3, $5);
       $$ = (char *)Malloc((s.size() + 1) * sizeof(char));
       strcpy($$, s.c_str());
@@ -4412,8 +4483,8 @@ int PrintListOfDouble(char *format, List_T *list, char *buffer)
   buffer[j] = '\0';
 
   while(j < (int)strlen(format) && format[j] != '%') j++;
-  strncpy(buffer, format, j); 
-  buffer[j]='\0'; 
+  strncpy(buffer, format, j);
+  buffer[j]='\0';
   for(int i = 0; i < List_Nbr(list); i++){
     k = j;
     j++;
@@ -4426,7 +4497,7 @@ int PrintListOfDouble(char *format, List_T *list, char *buffer)
       if(k != j){
 	strncpy(tmp1, &(format[k]), j-k);
 	tmp1[j-k] = '\0';
-	sprintf(tmp2, tmp1, *(double*)List_Pointer(list, i)); 
+	sprintf(tmp2, tmp1, *(double*)List_Pointer(list, i));
 	strcat(buffer, tmp2);
       }
     }
diff --git a/Parser/Gmsh.yy.cpp b/Parser/Gmsh.yy.cpp
index 1261deeed683b6b61b25004274c69d7740f5e965..9ebd12a35ad275aaefd114727585e865644206b9 100644
--- a/Parser/Gmsh.yy.cpp
+++ b/Parser/Gmsh.yy.cpp
@@ -379,8 +379,8 @@ static void yy_fatal_error (yyconst char msg[]  );
 	*yy_cp = '\0'; \
 	(yy_c_buf_p) = yy_cp;
 
-#define YY_NUM_RULES 159
-#define YY_END_OF_BUFFER 160
+#define YY_NUM_RULES 160
+#define YY_END_OF_BUFFER 161
 /* This struct is not used in this scanner,
    but its presence is necessary. */
 struct yy_trans_info
@@ -388,86 +388,87 @@ struct yy_trans_info
 	flex_int32_t yy_verify;
 	flex_int32_t yy_nxt;
 	};
-static yyconst flex_int16_t yy_accept[711] =
+static yyconst flex_int16_t yy_accept[713] =
     {   0,
-        0,    0,  160,  158,    1,    1,  158,    5,  158,    6,
-      158,  158,  158,  158,  158,  153,   21,    2,  158,   16,
-      158,  157,  157,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,  157,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,  157,  157,  158,   28,   24,   19,   25,   17,
-       26,   18,    0,  155,    3,    4,   20,  154,  153,    0,
-       29,   27,   30,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,  157,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,  157,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,  157,  157,  157,  157,  157,   94,   93,  157,
-
-      157,  157,  157,  157,  157,  157,  157,  157,  157,  157,
-      157,  111,  157,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,  157,  157,  157,  157,  157,  157,  142,  143,
-      157,  157,  157,  157,  157,  157,  157,   23,   22,    0,
-      154,    0,    0,  156,  157,  157,  157,  157,  157,  157,
-      157,  157,  157,  157,  157,  157,  157,  157,  157,  157,
-      157,   49,  157,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,   65,  157,  157,  157,  157,  157,   78,  157,
-      157,  157,  157,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,  157,  100,  157,  157,  157,  157,  157,  157,
-
-      157,  157,  157,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,  157,  157,  129,  157,  157,  157,  157,  157,
-      157,  157,  157,  157,  157,  149,  157,  157,  157,  157,
-      157,    0,  155,    0,    0,  154,   31,  157,  157,  157,
-      157,   35,   37,  157,  157,  157,   57,  157,   44,  157,
-      157,  157,  157,  157,  157,  157,   48,  157,  157,  157,
-      157,  157,   64,  157,  157,  157,  157,   73,  157,   74,
-      157,  157,   77,  157,  157,  157,  157,  157,   86,   87,
-      157,  157,  157,  157,  157,  157,  157,  157,  157,  157,
-      157,   99,  157,  157,  157,  157,  157,  157,  157,  157,
-
-      157,  157,  157,  157,  157,  157,  124,  157,  157,  157,
-      157,  157,  139,  130,  157,  157,  157,  157,  128,  157,
-      157,  157,  157,  157,  157,  144,  148,  157,  157,  157,
-      157,   10,   15,    9,    8,  157,   12,   14,    0,  154,
-       33,  157,  157,  157,   39,  157,  157,  157,  157,  157,
-      157,  157,   52,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,  157,  157,   71,  157,  157,   75,   76,  157,
-      157,  157,  157,  157,  157,  157,  157,  157,   92,  157,
-      157,   97,  157,  157,  157,  101,  157,  157,  157,  107,
-      108,  157,  157,  157,  112,  157,  113,  157,  157,  157,
-
-      157,  157,  157,  157,  123,  157,  157,  157,  133,  157,
-      157,  157,  157,  157,  157,  157,  150,  157,  151,  157,
-       11,  157,   13,  157,   32,   36,   38,  157,   41,  157,
-      157,  157,   45,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,   61,   63,  157,  157,   70,  157,  157,  157,
-      157,  157,   80,  157,  157,   90,   89,  157,   91,  157,
-      157,  102,   98,  157,  157,  157,  104,  157,  157,  157,
-      117,  157,  116,  157,  157,  157,  126,  122,  157,  131,
-      132,  157,  136,  157,  157,  157,  157,  157,  157,  157,
-      152,    7,  157,   40,   42,  157,  157,  157,  157,  157,
-
-       47,   51,  157,  157,  157,  157,  157,   67,  157,  157,
-      157,   68,  157,  157,  157,  157,  157,  157,   88,  157,
-      157,  157,  157,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,  157,  135,  157,  157,  134,  157,  157,  157,
-      157,  157,  157,  157,  157,  157,  157,  157,   54,  157,
-      157,  157,  157,   66,   69,  157,   79,  157,  157,  157,
-      157,   82,  157,  157,  103,  105,  106,  157,  109,  110,
-      157,  157,  157,  157,  157,  157,  127,  157,  157,  140,
-      157,  157,  157,  157,  157,  157,  157,  157,   46,  157,
-      157,  157,  157,  157,   72,  157,  157,  157,   81,  157,
-
-       95,  157,  157,  157,  157,  157,  120,  157,  137,  157,
-      141,  157,  157,  147,  157,  157,   56,  157,   53,  157,
-      157,  157,  157,  157,  157,  157,  157,  114,  157,  118,
-      157,  157,  125,  157,  157,  157,  157,   43,  157,   55,
-      157,  157,   62,  157,  157,  157,  157,  115,  119,  157,
-      138,  157,  145,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,  157,  157,  157,  157,  157,  157,  157,  157,
-      157,  157,  146,  157,   50,   58,   60,  157,  157,  157,
-      157,  121,  157,  157,  157,  157,  157,  157,   34,  157,
-      157,  157,  157,  157,  157,  157,  157,  157,  157,  157,
-
-       83,   84,   85,  157,  157,  157,  157,   96,   59,    0
+        0,    0,  161,  159,    1,    1,  159,    5,  159,    6,
+      159,  159,  159,  159,  159,  154,   21,    2,  159,   16,
+      159,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,  159,   28,   24,   19,   25,   17,
+       26,   18,    0,  156,    3,    4,   20,  155,  154,    0,
+       29,   27,   30,  158,  158,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,  158,  158,  158,   94,   93,  158,
+
+      158,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+      158,  112,  158,  158,  158,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,  158,  158,  158,  158,  143,  144,
+      158,  158,  158,  158,  158,  158,  158,   23,   22,    0,
+      155,    0,    0,  157,  158,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+      158,   49,  158,  158,  158,  158,  158,  158,  158,  158,
+      158,  158,   65,  158,  158,  158,  158,  158,   78,  158,
+      158,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,  101,  158,  158,  158,  158,  158,
+
+      158,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,  158,  130,  158,  158,  158,  158,
+      158,  158,  158,  158,  158,  158,  150,  158,  158,  158,
+      158,  158,    0,  156,    0,    0,  155,   31,  158,  158,
+      158,  158,   35,   37,  158,  158,  158,   57,  158,   44,
+      158,  158,  158,  158,  158,  158,  158,   48,  158,  158,
+      158,  158,  158,   64,  158,  158,  158,  158,   73,  158,
+       74,  158,  158,   77,  158,  158,  158,  158,  158,   86,
+       87,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+      158,  158,   99,  100,  158,  158,  158,  158,  158,  158,
+
+      158,  158,  158,  158,  158,  158,  158,  158,  125,  158,
+      158,  158,  158,  158,  140,  131,  158,  158,  158,  158,
+      129,  158,  158,  158,  158,  158,  158,  145,  149,  158,
+      158,  158,  158,   10,   15,    9,    8,  158,   12,   14,
+        0,  155,   33,  158,  158,  158,   39,  158,  158,  158,
+      158,  158,  158,  158,   52,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,  158,  158,   71,  158,  158,   75,
+       76,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+       92,  158,  158,   97,  158,  158,  158,  102,  158,  158,
+      158,  108,  109,  158,  158,  158,  113,  158,  114,  158,
+
+      158,  158,  158,  158,  158,  158,  124,  158,  158,  158,
+      134,  158,  158,  158,  158,  158,  158,  158,  151,  158,
+      152,  158,   11,  158,   13,  158,   32,   36,   38,  158,
+       41,  158,  158,  158,   45,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,   61,   63,  158,  158,   70,  158,
+      158,  158,  158,  158,   80,  158,  158,   90,   89,  158,
+       91,  158,  158,  103,   98,  158,  158,  158,  105,  158,
+      158,  158,  118,  158,  117,  158,  158,  158,  127,  123,
+      158,  132,  133,  158,  137,  158,  158,  158,  158,  158,
+      158,  158,  153,    7,  158,   40,   42,  158,  158,  158,
+
+      158,  158,   47,   51,  158,  158,  158,  158,  158,   67,
+      158,  158,  158,   68,  158,  158,  158,  158,  158,  158,
+       88,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,  158,  136,  158,  158,  135,  158,
+      158,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+       54,  158,  158,  158,  158,   66,   69,  158,   79,  158,
+      158,  158,  158,   82,  158,  158,  104,  106,  107,  158,
+      110,  111,  158,  158,  158,  158,  158,  158,  128,  158,
+      158,  141,  158,  158,  158,  158,  158,  158,  158,  158,
+       46,  158,  158,  158,  158,  158,   72,  158,  158,  158,
+
+       81,  158,   95,  158,  158,  158,  158,  158,  121,  158,
+      138,  158,  142,  158,  158,  148,  158,  158,   56,  158,
+       53,  158,  158,  158,  158,  158,  158,  158,  158,  115,
+      158,  119,  158,  158,  126,  158,  158,  158,  158,   43,
+      158,   55,  158,  158,   62,  158,  158,  158,  158,  116,
+      120,  158,  139,  158,  146,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+      158,  158,  158,  158,  147,  158,   50,   58,   60,  158,
+      158,  158,  158,  122,  158,  158,  158,  158,  158,  158,
+       34,  158,  158,  158,  158,  158,  158,  158,  158,  158,
+
+      158,  158,   83,   84,   85,  158,  158,  158,  158,   96,
+       59,    0
     } ;
 
 static yyconst flex_int32_t yy_ec[256] =
@@ -514,173 +515,173 @@ static yyconst flex_int32_t yy_meta[74] =
         2,    2,    1
     } ;
 
-static yyconst flex_int16_t yy_base[712] =
+static yyconst flex_int16_t yy_base[714] =
     {   0,
-        0,    0,  838,  839,  839,  839,  816,  839,  830,  839,
-      814,   65,   66,   64,   76,   78,  839,  839,  813,  812,
-      811,   46,   57,   65,   50,   64,   77,   47,   29,   79,
-        0,  771,   89,   81,  763,  765,   99,  761,  100,  103,
-       92,  762,  765,  773,  751,  839,  839,  839,  839,  839,
-      839,  839,  812,  162,  839,  839,  839,  167,  182,  191,
-      839,  839,  839,    0,  761,  765,  770,  763,  770,  755,
-      744,  748,  106,  758,  765,  748,  157,  759,  132,  752,
-      761,  750,  756,  756,  155,  756,  752,  742,  741,  737,
-      740,  758,  732,  746,   69,  734,  753,    0,  728,  732,
-
-      721,  142,  731,  736,  758,  737,  723,  735,  721,  720,
-      712,    0,  101,   45,  726,  733,  720,  170,  713,  720,
-      716,  716,  714,  169,  710,  709,  708,  128,    0,    0,
-      736,  710,  718,  720,  711,  708,  696,  839,  839,  228,
-      233,  242,  215,  248,  699,  715,  228,  702,  701,  702,
-      703,  698,  699,  697,  697,  690,  703,  700,  690,  164,
-      686,  694,  700,  691,  694,  693,  696,  674,  686,  115,
-      683,  674,    0,  675,  673,  679,  675,  684,    0,  684,
-      703,  227,  680,  679,  247,  669,  702,  676,  661,  674,
-      671,  672,  671,  708,  674,  653,  670,  666,  669,  660,
-
-      650,  654,  659,  652,  663,  650,  658,  657,  646,  650,
-      638,  656,  651,  633,  646,  639,  647,  642,  641,  630,
-      241,  642,  635,  643,  665,  636,  642,  629,  628,  620,
-      233,  289,  294,  303,  308,  313,    0,  621,  624,  628,
-      635,    0,  667,  625,  628,  628,    0,  611,    0,  629,
-      618,  611,  610,  617,  216,  621,    0,  605,  610,  609,
-      602,  601,    0,  604,  604,  611,  607,    0,  595,    0,
-      610,  596,    0,  593,  611,  597,  590,  607,    0,    0,
-      587,  601,  604,  599,  584,  609,  584,  582,  582,  579,
-      586,    0,  630,  151,  584,  576,  576,  580,  577,  581,
-
-      584,  579,  568,  569,  566,  233,    0,  572,  570,  565,
-      562,  576,    0,    0,  560,  561,  207,  564,    0,  575,
-      558,  569,  572,  567,  583,    0,    0,  546,  551,  561,
-      555,    0,    0,  555,    0,  560,  553,    0,  318,  323,
-      565,  544,  548,  547,    0,  546,  541,  548,  545,  552,
-      549,  548,  557,  538,  545,  529,  539,  542,  541,  540,
-      539,  538,  174,  525,    0,  537,  536,    0,    0,  530,
-      254,  517,  520,  525,  516,  521,  520,  516,    0,  540,
-      512,    0,  511,  520,  509,    0,  525,  516,  510,    0,
-        0,  518,  518,  518,    0,  507,    0,  525,  512,  500,
-
-      514,  510,  501,  508,    0,  504,  506,  505,    0,  490,
-      489,  502,  495,  502,  485,  489,    0,  288,    0,  497,
-        0,  494,    0,  491,    0,    0,  531,  493,    0,  484,
-      485,  476,    0,  481,  492,  487,  468,  477,  476,  493,
-      509,  469,    0,    0,  226,  476,    0,  475,  478,  468,
-      319,  505,    0,  471,  459,    0,    0,  468,    0,  487,
-      471,    0,    0,  470,  461,  448,    0,  453,  462,  469,
-        0,  454,    0,  459,  309,  479,    0,    0,  461,    0,
-        0,  459,    0,  458,  462,  457,  444,  456,  305,  458,
-        0,    0,  439,    0,    0,  450,  463,  450,  451,  451,
-
-        0,    0,  448,  450,  436,  435,  447,    0,  429,  443,
-      444,    0,  431,  458,  453,  446,  427,  434,    0,  451,
-      434,  417,  425,  429,  416,  429,  420,  422,  319,  428,
-      415,  422,  409,    0,  416,  405,    0,  399,  417,  401,
-      407,  400,  410,  440,  402,  398,  409,  402,    0,  393,
-      396,  397,  390,    0,    0,  395,    0,  417,  416,  427,
-      397,    0,  427,  383,    0,    0,    0,  392,    0,    0,
-      395,  397,  385,  378,  391,  377,    0,  371,  384,    0,
-      381,  390,  381,  384,  398,  373,  374,  376,    0,  379,
-      378,  368,  363,  375,    0,  386,  385,  394,    0,  381,
-
-        0,  372,  357,  362,  365,  366,    0,  362,    0,  348,
-        0,  364,  348,    0,  351,  342,    0,  346,    0,  345,
-      351,  342,  356,  359,  358,  357,  372,    0,  350,    0,
-      343,  336,    0,  347,  248,  346,  331,    0,  330,    0,
-      334,  346,    0,  349,  348,  347,  353,    0,    0,  341,
-        0,  324,    0,  331,  330,  331,  323,  355,  354,  353,
-      343,  320,  321,  315,  325,  303,  307,  332,  331,  329,
-      319,  299,    0,  303,    0,  326,    0,  318,  317,  316,
-      315,    0,  290,  293,  322,  321,  320,  324,    0,  318,
-      310,  278,  263,  266,  233,  257,  248,  244,  208,  167,
-
-        0,    0,    0,  168,  121,  144,   51,    0,    0,  839,
-       81
+        0,    0,  840,  841,  841,  841,  818,  841,  832,  841,
+      816,   65,   66,   64,   76,   78,  841,  841,  815,  814,
+      813,   46,   57,   65,   50,   64,   77,   47,   29,   79,
+        0,  773,   89,   81,  765,  767,   99,  763,  100,  103,
+       92,  764,  767,  775,  753,  841,  841,  841,  841,  841,
+      841,  841,  814,  162,  841,  841,  841,  167,  182,  191,
+      841,  841,  841,    0,  763,  767,  772,  765,  772,  757,
+      746,  750,  106,  760,  767,  750,  157,  761,  132,  754,
+      763,  752,  758,  758,  155,  758,  754,  744,  743,  739,
+      742,  760,  734,  748,   69,  736,  755,    0,  730,  734,
+
+      723,  142,  108,  739,  761,  740,  726,  738,  724,  723,
+      715,    0,  165,   45,  729,  736,  723,  170,  716,  723,
+      719,  719,  717,  169,  713,  712,  711,  128,    0,    0,
+      739,  713,  721,  723,  714,  711,  699,  841,  841,  228,
+      233,  242,  248,  253,  702,  718,  246,  705,  704,  705,
+      706,  701,  702,  700,  700,  693,  706,  703,  693,  177,
+      689,  697,  703,  694,  697,  696,  699,  677,  689,  115,
+      686,  677,    0,  678,  676,  682,  678,  687,    0,  687,
+      706,  245,  683,  682,  250,  672,  705,  679,  664,  677,
+      674,  675,  674,  659,  710,  676,  655,  672,  668,  671,
+
+      662,  652,  656,  661,  654,  665,  652,  660,  659,  648,
+      652,  640,  658,  653,  635,  648,  641,  649,  644,  643,
+      632,  255,  644,  637,  645,  667,  638,  644,  631,  630,
+      622,  244,  300,  305,  314,  319,  324,    0,  623,  626,
+      630,  637,    0,  669,  627,  630,  630,    0,  613,    0,
+      631,  620,  613,  612,  619,  167,  623,    0,  607,  612,
+      611,  604,  603,    0,  606,  606,  613,  609,    0,  597,
+        0,  612,  598,    0,  595,  613,  599,  592,  609,    0,
+        0,  589,  603,  606,  601,  586,  611,  586,  584,  584,
+      581,  588,    0,    0,  632,  151,  586,  578,  578,  582,
+
+      579,  583,  586,  581,  570,  571,  568,  187,    0,  574,
+      572,  567,  564,  578,    0,    0,  562,  563,  216,  566,
+        0,  577,  560,  571,  574,  569,  585,    0,    0,  548,
+      553,  563,  557,    0,    0,  557,    0,  562,  555,    0,
+      329,  334,  567,  546,  550,  549,    0,  548,  543,  550,
+      547,  554,  551,  550,  559,  540,  547,  531,  541,  544,
+      543,  542,  541,  540,  165,  527,    0,  539,  538,    0,
+        0,  532,  239,  519,  522,  527,  518,  523,  522,  518,
+        0,  542,  514,    0,  513,  522,  511,    0,  527,  518,
+      512,    0,    0,  520,  520,  520,    0,  509,    0,  527,
+
+      514,  502,  516,  512,  503,  510,    0,  506,  508,  507,
+        0,  492,  491,  504,  497,  504,  487,  491,    0,  182,
+        0,  499,    0,  496,    0,  493,    0,    0,  533,  495,
+        0,  486,  487,  478,    0,  483,  494,  489,  470,  479,
+      478,  495,  511,  471,    0,    0,  240,  478,    0,  477,
+      480,  470,  250,  507,    0,  473,  461,    0,    0,  470,
+        0,  489,  473,    0,    0,  472,  463,  450,    0,  455,
+      464,  471,    0,  456,    0,  461,  249,  481,    0,    0,
+      463,    0,    0,  461,    0,  460,  464,  459,  446,  458,
+      313,  460,    0,    0,  441,    0,    0,  452,  465,  452,
+
+      453,  453,    0,    0,  450,  452,  438,  437,  449,    0,
+      431,  445,  446,    0,  433,  460,  455,  448,  429,  436,
+        0,  453,  436,  419,  427,  431,  418,  431,  422,  424,
+      327,  430,  417,  424,  411,    0,  418,  407,    0,  401,
+      419,  403,  409,  402,  412,  442,  404,  400,  411,  404,
+        0,  395,  398,  399,  392,    0,    0,  397,    0,  419,
+      418,  429,  399,    0,  429,  385,    0,    0,    0,  394,
+        0,    0,  397,  399,  387,  380,  393,  379,    0,  373,
+      386,    0,  383,  392,  383,  386,  400,  375,  376,  378,
+        0,  381,  380,  370,  365,  377,    0,  388,  387,  396,
+
+        0,  383,    0,  374,  359,  364,  367,  368,    0,  364,
+        0,  350,    0,  366,  350,    0,  353,  344,    0,  348,
+        0,  347,  353,  344,  358,  361,  360,  359,  374,    0,
+      352,    0,  345,  338,    0,  349,  212,  348,  333,    0,
+      332,    0,  336,  348,    0,  351,  350,  349,  354,    0,
+        0,  342,    0,  325,    0,  332,  331,  332,  325,  357,
+      356,  355,  345,  322,  323,  316,  325,  303,  307,  332,
+      331,  330,  320,  301,    0,  305,    0,  328,    0,  322,
+      321,  320,  319,    0,  294,  297,  326,  325,  324,  329,
+        0,  296,  288,  274,  273,  274,  242,  265,  264,  263,
+
+      271,  226,    0,    0,    0,  168,  119,  122,   51,    0,
+        0,  841,   81
     } ;
 
-static yyconst flex_int16_t yy_def[712] =
+static yyconst flex_int16_t yy_def[714] =
     {   0,
-      710,    1,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  710,  710,  710,  710,  710,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710,  710,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  710,  710,  710,
-      710,  710,  710,  710,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  710,  710,  710,  710,  710,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  710,  710,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-      711,  711,  711,  711,  711,  711,  711,  711,  711,  711,
-
-      711,  711,  711,  711,  711,  711,  711,  711,  711,    0,
-      710
+      712,    1,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  712,  712,  712,
+      712,  712,  712,  712,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  712,  712,  712,  712,  712,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      712,  712,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+
+      713,  713,  713,  713,  713,  713,  713,  713,  713,  713,
+      713,    0,  712
     } ;
 
-static yyconst flex_int16_t yy_nxt[913] =
+static yyconst flex_int16_t yy_nxt[915] =
     {   0,
         4,    5,    6,    7,    8,    9,   10,   11,   12,   13,
        14,   15,   16,   16,   16,   16,   16,   17,   18,   19,
@@ -693,99 +694,99 @@ static yyconst flex_int16_t yy_nxt[913] =
        54,   92,   64,   55,   94,   50,   52,   56,   58,   95,
        59,   59,   59,   59,   59,   65,   57,   70,   93,   96,
 
-      204,   79,  205,   66,   60,   80,  129,  130,   71,   67,
-       68,   69,   73,   81,   97,  709,   74,   72,  105,   75,
+      205,   79,  206,   66,   60,   80,  129,  130,   71,   67,
+       68,   69,   73,   81,   97,  711,   74,   72,  105,   75,
        76,   82,  131,   83,   86,   77,  184,  185,   78,   60,
        84,   98,   87,   85,   88,   89,  101,   90,   99,  132,
-      102,  106,  265,   91,  103,  266,  109,  117,  202,  104,
+      102,  106,  266,   91,  103,  267,  109,  117,  710,  104,
       110,  118,  133,  111,  112,  134,  113,  121,  122,  114,
-      119,  123,  115,  153,  124,  125,  120,  203,  126,  127,
-      708,  154,  707,  128,   54,   54,   54,   54,   54,  141,
-      141,  141,  141,  141,  164,  165,  223,  224,  140,  166,
-      387,  388,   58,  142,   59,   59,   59,   59,   59,  143,
-
-      143,  191,  706,  144,  144,  144,  144,  144,   60,  192,
-      172,  158,  254,  140,  159,  160,  173,  161,  142,  209,
-      174,  162,  210,  217,  705,  255,  218,  144,  144,  144,
-      144,  144,  219,   60,  704,  211,  232,  232,  445,  446,
-      233,  233,  233,  233,  233,  141,  141,  141,  141,  141,
-      235,  235,  239,  276,  236,  236,  236,  236,  236,  234,
-      144,  144,  144,  144,  144,  320,  408,  277,  240,  241,
-      278,  281,  409,  355,  400,  282,  356,  508,  321,  703,
-      322,  509,  332,  702,  234,  333,  283,  284,  451,  652,
-      334,  452,  701,  700,  335,  699,  336,  337,  400,  698,
-
-      338,  233,  233,  233,  233,  233,  233,  233,  233,  233,
-      233,  339,  339,  652,  697,  340,  340,  340,  340,  340,
-      236,  236,  236,  236,  236,  236,  236,  236,  236,  236,
-      340,  340,  340,  340,  340,  340,  340,  340,  340,  340,
-      489,  514,  530,  540,  572,  490,  696,  695,  694,  515,
-      693,  692,  691,  690,  689,  688,  687,  686,  685,  573,
-      541,  684,  683,  682,  531,  681,  530,  540,  680,  572,
-      679,  678,  677,  676,  675,  674,  673,  672,  671,  670,
-      669,  668,  667,  573,  666,  665,  664,  663,  662,  661,
-      660,  659,  658,  657,  656,  655,  654,  653,  651,  650,
-
-      649,  648,  647,  646,  645,  644,  643,  642,  641,  640,
-      639,  638,  637,  636,  635,  634,  633,  632,  631,  630,
-      629,  628,  627,  626,  625,  624,  623,  622,  621,  620,
-      619,  618,  617,  616,  615,  614,  613,  612,  611,  610,
-      609,  608,  607,  606,  605,  604,  603,  602,  601,  600,
-      599,  598,  597,  596,  595,  594,  593,  592,  591,  590,
-      589,  588,  587,  586,  585,  584,  583,  582,  581,  580,
-      579,  578,  577,  576,  575,  574,  571,  570,  569,  568,
-      567,  566,  565,  564,  563,  562,  561,  560,  559,  558,
-      557,  556,  555,  554,  553,  552,  551,  550,  549,  548,
-
-      547,  546,  545,  544,  543,  542,  539,  538,  537,  536,
-      535,  534,  533,  532,  529,  528,  527,  526,  525,  524,
-      523,  522,  521,  520,  519,  518,  517,  516,  513,  512,
-      511,  510,  507,  506,  505,  504,  503,  502,  501,  500,
-      499,  498,  497,  496,  495,  494,  493,  492,  491,  488,
-      487,  486,  485,  484,  483,  482,  481,  480,  479,  478,
-      477,  476,  475,  474,  473,  472,  471,  470,  469,  468,
-      467,  466,  465,  464,  463,  462,  461,  460,  459,  458,
-      457,  456,  455,  454,  453,  450,  449,  448,  447,  444,
-      443,  442,  441,  440,  439,  438,  437,  436,  435,  434,
-
-      433,  432,  431,  430,  429,  428,  427,  426,  425,  424,
-      423,  422,  421,  420,  419,  418,  417,  416,  415,  414,
-      413,  412,  411,  410,  407,  406,  405,  404,  403,  402,
-      401,  399,  398,  397,  396,  395,  394,  393,  392,  391,
-      390,  389,  386,  385,  384,  383,  382,  381,  380,  379,
-      378,  377,  376,  375,  374,  373,  372,  371,  370,  369,
-      368,  367,  366,  365,  364,  363,  362,  361,  360,  359,
-      358,  357,  354,  353,  352,  351,  350,  349,  348,  347,
-      346,  345,  344,  343,  342,  341,  331,  330,  329,  328,
-      327,  326,  325,  324,  323,  319,  318,  317,  316,  315,
-
-      314,  313,  312,  311,  310,  309,  308,  307,  306,  305,
-      304,  303,  302,  301,  300,  299,  298,  297,  296,  295,
-      294,  293,  292,  291,  290,  289,  288,  287,  286,  285,
-      280,  279,  275,  274,  273,  272,  271,  270,  269,  268,
-      267,  264,  263,  262,  261,  260,  259,  258,  257,  256,
-      253,  252,  251,  250,  249,  248,  247,  246,  245,  244,
-      243,  242,  238,  237,  231,  230,  229,  228,  227,  226,
-      225,  222,  221,  220,  216,  215,  214,  213,  212,  208,
-      207,  206,  201,  200,  199,  198,  197,  196,  195,  194,
-      193,  190,  189,  188,  187,  186,  183,  182,  181,  180,
-
-      179,  178,  177,  176,  175,  171,  170,  169,  168,  167,
-      163,  157,  156,  155,  152,  151,  150,  149,  148,  147,
-      146,  145,  139,  138,  137,  136,  135,  116,  108,  107,
-      100,   63,   62,   61,   48,   47,   46,  710,    3,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710
+      119,  123,  115,  153,  124,  125,  120,  193,  126,  127,
+      709,  154,  194,  128,   54,   54,   54,   54,   54,  141,
+      141,  141,  141,  141,  164,  165,  224,  225,  140,  166,
+      389,  390,   58,  142,   59,   59,   59,   59,   59,  143,
+
+      143,  191,  708,  144,  144,  144,  144,  144,   60,  192,
+      172,  158,  203,  140,  159,  160,  173,  161,  142,  210,
+      174,  162,  211,  218,  357,  255,  219,  358,  402,  447,
+      448,  204,  220,   60,  491,  212,  233,  233,  256,  492,
+      234,  234,  234,  234,  234,  141,  141,  141,  141,  141,
+      236,  236,  402,  654,  237,  237,  237,  237,  237,  235,
+      144,  144,  144,  144,  144,  144,  144,  144,  144,  144,
+      240,  277,  516,  453,  282,  410,  454,  654,  283,  322,
+      517,  411,  532,  707,  235,  278,  241,  242,  279,  284,
+      285,  510,  323,  334,  324,  511,  335,  706,  705,  704,
+
+      703,  336,  702,  701,  533,  337,  532,  338,  339,  700,
+      699,  340,  234,  234,  234,  234,  234,  234,  234,  234,
+      234,  234,  341,  341,  698,  697,  342,  342,  342,  342,
+      342,  237,  237,  237,  237,  237,  237,  237,  237,  237,
+      237,  342,  342,  342,  342,  342,  342,  342,  342,  342,
+      342,  542,  574,  696,  695,  694,  693,  692,  691,  690,
+      689,  688,  687,  686,  685,  684,  683,  575,  543,  682,
+      681,  680,  679,  678,  677,  542,  676,  574,  675,  674,
+      673,  672,  671,  670,  669,  668,  667,  666,  665,  664,
+      663,  575,  662,  661,  660,  659,  658,  657,  656,  655,
+
+      653,  652,  651,  650,  649,  648,  647,  646,  645,  644,
+      643,  642,  641,  640,  639,  638,  637,  636,  635,  634,
+      633,  632,  631,  630,  629,  628,  627,  626,  625,  624,
+      623,  622,  621,  620,  619,  618,  617,  616,  615,  614,
+      613,  612,  611,  610,  609,  608,  607,  606,  605,  604,
+      603,  602,  601,  600,  599,  598,  597,  596,  595,  594,
+      593,  592,  591,  590,  589,  588,  587,  586,  585,  584,
+      583,  582,  581,  580,  579,  578,  577,  576,  573,  572,
+      571,  570,  569,  568,  567,  566,  565,  564,  563,  562,
+      561,  560,  559,  558,  557,  556,  555,  554,  553,  552,
+
+      551,  550,  549,  548,  547,  546,  545,  544,  541,  540,
+      539,  538,  537,  536,  535,  534,  531,  530,  529,  528,
+      527,  526,  525,  524,  523,  522,  521,  520,  519,  518,
+      515,  514,  513,  512,  509,  508,  507,  506,  505,  504,
+      503,  502,  501,  500,  499,  498,  497,  496,  495,  494,
+      493,  490,  489,  488,  487,  486,  485,  484,  483,  482,
+      481,  480,  479,  478,  477,  476,  475,  474,  473,  472,
+      471,  470,  469,  468,  467,  466,  465,  464,  463,  462,
+      461,  460,  459,  458,  457,  456,  455,  452,  451,  450,
+      449,  446,  445,  444,  443,  442,  441,  440,  439,  438,
+
+      437,  436,  435,  434,  433,  432,  431,  430,  429,  428,
+      427,  426,  425,  424,  423,  422,  421,  420,  419,  418,
+      417,  416,  415,  414,  413,  412,  409,  408,  407,  406,
+      405,  404,  403,  401,  400,  399,  398,  397,  396,  395,
+      394,  393,  392,  391,  388,  387,  386,  385,  384,  383,
+      382,  381,  380,  379,  378,  377,  376,  375,  374,  373,
+      372,  371,  370,  369,  368,  367,  366,  365,  364,  363,
+      362,  361,  360,  359,  356,  355,  354,  353,  352,  351,
+      350,  349,  348,  347,  346,  345,  344,  343,  333,  332,
+      331,  330,  329,  328,  327,  326,  325,  321,  320,  319,
+
+      318,  317,  316,  315,  314,  313,  312,  311,  310,  309,
+      308,  307,  306,  305,  304,  303,  302,  301,  300,  299,
+      298,  297,  296,  295,  294,  293,  292,  291,  290,  289,
+      288,  287,  286,  281,  280,  276,  275,  274,  273,  272,
+      271,  270,  269,  268,  265,  264,  263,  262,  261,  260,
+      259,  258,  257,  254,  253,  252,  251,  250,  249,  248,
+      247,  246,  245,  244,  243,  239,  238,  232,  231,  230,
+      229,  228,  227,  226,  223,  222,  221,  217,  216,  215,
+      214,  213,  209,  208,  207,  202,  201,  200,  199,  198,
+      197,  196,  195,  190,  189,  188,  187,  186,  183,  182,
+
+      181,  180,  179,  178,  177,  176,  175,  171,  170,  169,
+      168,  167,  163,  157,  156,  155,  152,  151,  150,  149,
+      148,  147,  146,  145,  139,  138,  137,  136,  135,  116,
+      108,  107,  100,   63,   62,   61,   48,   47,   46,  712,
+        3,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712
     } ;
 
-static yyconst flex_int16_t yy_chk[913] =
+static yyconst flex_int16_t yy_chk[915] =
     {   0,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
@@ -795,99 +796,99 @@ static yyconst flex_int16_t yy_chk[913] =
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
         1,    1,    1,   12,   14,   13,   14,   14,   14,   14,
-       14,   28,  711,   15,   29,   12,   13,   15,   16,   29,
+       14,   28,  713,   15,   29,   12,   13,   15,   16,   29,
        16,   16,   16,   16,   16,   22,   15,   23,   28,   29,
 
       114,   25,  114,   22,   16,   25,   41,   41,   23,   22,
-       22,   22,   24,   25,   30,  707,   24,   23,   34,   24,
+       22,   22,   24,   25,   30,  709,   24,   23,   34,   24,
        24,   26,   41,   26,   27,   24,   95,   95,   24,   16,
        26,   30,   27,   26,   27,   27,   33,   27,   30,   41,
-       33,   34,  170,   27,   33,  170,   37,   39,  113,   33,
+       33,   34,  170,   27,   33,  170,   37,   39,  708,   33,
        37,   39,   41,   37,   37,   41,   37,   40,   40,   37,
-       39,   40,   37,   73,   40,   40,   39,  113,   40,   40,
-      706,   73,  705,   40,   54,   54,   54,   54,   54,   58,
+       39,   40,   37,   73,   40,   40,   39,  103,   40,   40,
+      707,   73,  103,   40,   54,   54,   54,   54,   54,   58,
        58,   58,   58,   58,   79,   79,  128,  128,   54,   79,
-      294,  294,   59,   58,   59,   59,   59,   59,   59,   60,
+      296,  296,   59,   58,   59,   59,   59,   59,   59,   60,
 
-       60,  102,  704,   60,   60,   60,   60,   60,   59,  102,
-       85,   77,  160,   54,   77,   77,   85,   77,   58,  118,
-       85,   77,  118,  124,  700,  160,  124,  143,  143,  143,
-      143,  143,  124,   59,  699,  118,  140,  140,  363,  363,
+       60,  102,  706,   60,   60,   60,   60,   60,   59,  102,
+       85,   77,  113,   54,   77,   77,   85,   77,   58,  118,
+       85,   77,  118,  124,  256,  160,  124,  256,  308,  365,
+      365,  113,  124,   59,  420,  118,  140,  140,  160,  420,
       140,  140,  140,  140,  140,  141,  141,  141,  141,  141,
-      142,  142,  147,  182,  142,  142,  142,  142,  142,  141,
-      144,  144,  144,  144,  144,  221,  317,  182,  147,  147,
-      182,  185,  317,  255,  306,  185,  255,  445,  221,  698,
-      221,  445,  231,  697,  141,  231,  185,  185,  371,  635,
-      231,  371,  696,  695,  231,  694,  231,  231,  306,  693,
-
-      231,  232,  232,  232,  232,  232,  233,  233,  233,  233,
-      233,  234,  234,  635,  692,  234,  234,  234,  234,  234,
-      235,  235,  235,  235,  235,  236,  236,  236,  236,  236,
-      339,  339,  339,  339,  339,  340,  340,  340,  340,  340,
-      418,  451,  475,  489,  529,  418,  691,  690,  688,  451,
-      687,  686,  685,  684,  683,  681,  680,  679,  678,  529,
-      489,  676,  674,  672,  475,  671,  475,  489,  670,  529,
-      669,  668,  667,  666,  665,  664,  663,  662,  661,  660,
-      659,  658,  657,  529,  656,  655,  654,  652,  650,  647,
-      646,  645,  644,  642,  641,  639,  637,  636,  634,  632,
-
-      631,  629,  627,  626,  625,  624,  623,  622,  621,  620,
-      618,  616,  615,  613,  612,  610,  608,  606,  605,  604,
-      603,  602,  600,  598,  597,  596,  594,  593,  592,  591,
-      590,  588,  587,  586,  585,  584,  583,  582,  581,  579,
-      578,  576,  575,  574,  573,  572,  571,  568,  564,  563,
-      561,  560,  559,  558,  556,  553,  552,  551,  550,  548,
-      547,  546,  545,  544,  543,  542,  541,  540,  539,  538,
-      536,  535,  533,  532,  531,  530,  528,  527,  526,  525,
-      524,  523,  522,  521,  520,  518,  517,  516,  515,  514,
-      513,  511,  510,  509,  507,  506,  505,  504,  503,  500,
-
-      499,  498,  497,  496,  493,  490,  488,  487,  486,  485,
-      484,  482,  479,  476,  474,  472,  470,  469,  468,  466,
-      465,  464,  461,  460,  458,  455,  454,  452,  450,  449,
-      448,  446,  442,  441,  440,  439,  438,  437,  436,  435,
-      434,  432,  431,  430,  428,  427,  424,  422,  420,  416,
-      415,  414,  413,  412,  411,  410,  408,  407,  406,  404,
-      403,  402,  401,  400,  399,  398,  396,  394,  393,  392,
-      389,  388,  387,  385,  384,  383,  381,  380,  378,  377,
-      376,  375,  374,  373,  372,  370,  367,  366,  364,  362,
-      361,  360,  359,  358,  357,  356,  355,  354,  353,  352,
-
-      351,  350,  349,  348,  347,  346,  344,  343,  342,  341,
-      337,  336,  334,  331,  330,  329,  328,  325,  324,  323,
-      322,  321,  320,  318,  316,  315,  312,  311,  310,  309,
-      308,  305,  304,  303,  302,  301,  300,  299,  298,  297,
-      296,  295,  293,  291,  290,  289,  288,  287,  286,  285,
-      284,  283,  282,  281,  278,  277,  276,  275,  274,  272,
-      271,  269,  267,  266,  265,  264,  262,  261,  260,  259,
-      258,  256,  254,  253,  252,  251,  250,  248,  246,  245,
-      244,  243,  241,  240,  239,  238,  230,  229,  228,  227,
-      226,  225,  224,  223,  222,  220,  219,  218,  217,  216,
-
-      215,  214,  213,  212,  211,  210,  209,  208,  207,  206,
-      205,  204,  203,  202,  201,  200,  199,  198,  197,  196,
-      195,  194,  193,  192,  191,  190,  189,  188,  187,  186,
-      184,  183,  181,  180,  178,  177,  176,  175,  174,  172,
-      171,  169,  168,  167,  166,  165,  164,  163,  162,  161,
-      159,  158,  157,  156,  155,  154,  153,  152,  151,  150,
-      149,  148,  146,  145,  137,  136,  135,  134,  133,  132,
-      131,  127,  126,  125,  123,  122,  121,  120,  119,  117,
-      116,  115,  111,  110,  109,  108,  107,  106,  105,  104,
-      103,  101,  100,   99,   97,   96,   94,   93,   92,   91,
-
-       90,   89,   88,   87,   86,   84,   83,   82,   81,   80,
-       78,   76,   75,   74,   72,   71,   70,   69,   68,   67,
-       66,   65,   53,   45,   44,   43,   42,   38,   36,   35,
-       32,   21,   20,   19,   11,    9,    7,    3,  710,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-
-      710,  710,  710,  710,  710,  710,  710,  710,  710,  710,
-      710,  710
+      142,  142,  308,  637,  142,  142,  142,  142,  142,  141,
+      143,  143,  143,  143,  143,  144,  144,  144,  144,  144,
+      147,  182,  453,  373,  185,  319,  373,  637,  185,  222,
+      453,  319,  477,  702,  141,  182,  147,  147,  182,  185,
+      185,  447,  222,  232,  222,  447,  232,  701,  700,  699,
+
+      698,  232,  697,  696,  477,  232,  477,  232,  232,  695,
+      694,  232,  233,  233,  233,  233,  233,  234,  234,  234,
+      234,  234,  235,  235,  693,  692,  235,  235,  235,  235,
+      235,  236,  236,  236,  236,  236,  237,  237,  237,  237,
+      237,  341,  341,  341,  341,  341,  342,  342,  342,  342,
+      342,  491,  531,  690,  689,  688,  687,  686,  685,  683,
+      682,  681,  680,  678,  676,  674,  673,  531,  491,  672,
+      671,  670,  669,  668,  667,  491,  666,  531,  665,  664,
+      663,  662,  661,  660,  659,  658,  657,  656,  654,  652,
+      649,  531,  648,  647,  646,  644,  643,  641,  639,  638,
+
+      636,  634,  633,  631,  629,  628,  627,  626,  625,  624,
+      623,  622,  620,  618,  617,  615,  614,  612,  610,  608,
+      607,  606,  605,  604,  602,  600,  599,  598,  596,  595,
+      594,  593,  592,  590,  589,  588,  587,  586,  585,  584,
+      583,  581,  580,  578,  577,  576,  575,  574,  573,  570,
+      566,  565,  563,  562,  561,  560,  558,  555,  554,  553,
+      552,  550,  549,  548,  547,  546,  545,  544,  543,  542,
+      541,  540,  538,  537,  535,  534,  533,  532,  530,  529,
+      528,  527,  526,  525,  524,  523,  522,  520,  519,  518,
+      517,  516,  515,  513,  512,  511,  509,  508,  507,  506,
+
+      505,  502,  501,  500,  499,  498,  495,  492,  490,  489,
+      488,  487,  486,  484,  481,  478,  476,  474,  472,  471,
+      470,  468,  467,  466,  463,  462,  460,  457,  456,  454,
+      452,  451,  450,  448,  444,  443,  442,  441,  440,  439,
+      438,  437,  436,  434,  433,  432,  430,  429,  426,  424,
+      422,  418,  417,  416,  415,  414,  413,  412,  410,  409,
+      408,  406,  405,  404,  403,  402,  401,  400,  398,  396,
+      395,  394,  391,  390,  389,  387,  386,  385,  383,  382,
+      380,  379,  378,  377,  376,  375,  374,  372,  369,  368,
+      366,  364,  363,  362,  361,  360,  359,  358,  357,  356,
+
+      355,  354,  353,  352,  351,  350,  349,  348,  346,  345,
+      344,  343,  339,  338,  336,  333,  332,  331,  330,  327,
+      326,  325,  324,  323,  322,  320,  318,  317,  314,  313,
+      312,  311,  310,  307,  306,  305,  304,  303,  302,  301,
+      300,  299,  298,  297,  295,  292,  291,  290,  289,  288,
+      287,  286,  285,  284,  283,  282,  279,  278,  277,  276,
+      275,  273,  272,  270,  268,  267,  266,  265,  263,  262,
+      261,  260,  259,  257,  255,  254,  253,  252,  251,  249,
+      247,  246,  245,  244,  242,  241,  240,  239,  231,  230,
+      229,  228,  227,  226,  225,  224,  223,  221,  220,  219,
+
+      218,  217,  216,  215,  214,  213,  212,  211,  210,  209,
+      208,  207,  206,  205,  204,  203,  202,  201,  200,  199,
+      198,  197,  196,  195,  194,  193,  192,  191,  190,  189,
+      188,  187,  186,  184,  183,  181,  180,  178,  177,  176,
+      175,  174,  172,  171,  169,  168,  167,  166,  165,  164,
+      163,  162,  161,  159,  158,  157,  156,  155,  154,  153,
+      152,  151,  150,  149,  148,  146,  145,  137,  136,  135,
+      134,  133,  132,  131,  127,  126,  125,  123,  122,  121,
+      120,  119,  117,  116,  115,  111,  110,  109,  108,  107,
+      106,  105,  104,  101,  100,   99,   97,   96,   94,   93,
+
+       92,   91,   90,   89,   88,   87,   86,   84,   83,   82,
+       81,   80,   78,   76,   75,   74,   72,   71,   70,   69,
+       68,   67,   66,   65,   53,   45,   44,   43,   42,   38,
+       36,   35,   32,   21,   20,   19,   11,    9,    7,    3,
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+
+      712,  712,  712,  712,  712,  712,  712,  712,  712,  712,
+      712,  712,  712,  712
     } ;
 
 static yy_state_type yy_last_accepting_state;
@@ -944,7 +945,7 @@ void   skipline(void);
 #define YY_NO_UNISTD_H
 #endif
 
-#line 948 "Gmsh.yy.cpp"
+#line 949 "Gmsh.yy.cpp"
 
 #define INITIAL 0
 
@@ -1129,7 +1130,7 @@ YY_DECL
 #line 49 "Gmsh.l"
 
 
-#line 1133 "Gmsh.yy.cpp"
+#line 1134 "Gmsh.yy.cpp"
 
 	if ( !(yy_init) )
 		{
@@ -1182,13 +1183,13 @@ yy_match:
 			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 				{
 				yy_current_state = (int) yy_def[yy_current_state];
-				if ( yy_current_state >= 711 )
+				if ( yy_current_state >= 713 )
 					yy_c = yy_meta[(unsigned int) yy_c];
 				}
 			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
 			++yy_cp;
 			}
-		while ( yy_base[yy_current_state] != 839 );
+		while ( yy_base[yy_current_state] != 841 );
 
 yy_find_action:
 		yy_act = yy_accept[yy_current_state];
@@ -1711,295 +1712,300 @@ return tLine;
 case 100:
 YY_RULE_SETUP
 #line 161 "Gmsh.l"
-return tLog;
+return tList;
 	YY_BREAK
 case 101:
 YY_RULE_SETUP
 #line 162 "Gmsh.l"
-return tLog10;
+return tLog;
 	YY_BREAK
 case 102:
 YY_RULE_SETUP
 #line 163 "Gmsh.l"
-return tLayers;
+return tLog10;
 	YY_BREAK
 case 103:
 YY_RULE_SETUP
 #line 164 "Gmsh.l"
-return tLevelset;
+return tLayers;
 	YY_BREAK
 case 104:
 YY_RULE_SETUP
-#line 166 "Gmsh.l"
-return tModulo;
+#line 165 "Gmsh.l"
+return tLevelset;
 	YY_BREAK
 case 105:
 YY_RULE_SETUP
 #line 167 "Gmsh.l"
-return tMPI_Rank;
+return tModulo;
 	YY_BREAK
 case 106:
 YY_RULE_SETUP
 #line 168 "Gmsh.l"
-return tMPI_Size;
+return tMPI_Rank;
 	YY_BREAK
 case 107:
 YY_RULE_SETUP
-#line 170 "Gmsh.l"
-return tNurbs;
+#line 169 "Gmsh.l"
+return tMPI_Size;
 	YY_BREAK
 case 108:
 YY_RULE_SETUP
-#line 172 "Gmsh.l"
-return tNurbsOrder;
+#line 171 "Gmsh.l"
+return tNurbs;
 	YY_BREAK
 case 109:
 YY_RULE_SETUP
-#line 174 "Gmsh.l"
-return tPeriodic;
+#line 173 "Gmsh.l"
+return tNurbsOrder;
 	YY_BREAK
 case 110:
 YY_RULE_SETUP
 #line 175 "Gmsh.l"
-return tPhysical;
+return tPeriodic;
 	YY_BREAK
 case 111:
 YY_RULE_SETUP
 #line 176 "Gmsh.l"
-return tPi;
+return tPhysical;
 	YY_BREAK
 case 112:
 YY_RULE_SETUP
 #line 177 "Gmsh.l"
-return tPlane;
+return tPi;
 	YY_BREAK
 case 113:
 YY_RULE_SETUP
 #line 178 "Gmsh.l"
-return tPoint;
+return tPlane;
 	YY_BREAK
 case 114:
 YY_RULE_SETUP
 #line 179 "Gmsh.l"
-return tParametric;
+return tPoint;
 	YY_BREAK
 case 115:
 YY_RULE_SETUP
 #line 180 "Gmsh.l"
-return tPolarSphere;
+return tParametric;
 	YY_BREAK
 case 116:
 YY_RULE_SETUP
 #line 181 "Gmsh.l"
-return tPrintf;
+return tPolarSphere;
 	YY_BREAK
 case 117:
 YY_RULE_SETUP
 #line 182 "Gmsh.l"
-return tPlugin;
+return tPrintf;
 	YY_BREAK
 case 118:
 YY_RULE_SETUP
-#line 184 "Gmsh.l"
-return tQuadTriDbl;
+#line 183 "Gmsh.l"
+return tPlugin;
 	YY_BREAK
 case 119:
 YY_RULE_SETUP
 #line 185 "Gmsh.l"
-return tQuadTriSngl;
+return tQuadTriDbl;
 	YY_BREAK
 case 120:
 YY_RULE_SETUP
-#line 187 "Gmsh.l"
-return tRecombine;
+#line 186 "Gmsh.l"
+return tQuadTriSngl;
 	YY_BREAK
 case 121:
 YY_RULE_SETUP
 #line 188 "Gmsh.l"
-return tRecombLaterals;
+return tRecombine;
 	YY_BREAK
 case 122:
 YY_RULE_SETUP
 #line 189 "Gmsh.l"
-return tRotate;
+return tRecombLaterals;
 	YY_BREAK
 case 123:
 YY_RULE_SETUP
 #line 190 "Gmsh.l"
-return tRuled;
+return tRotate;
 	YY_BREAK
 case 124:
 YY_RULE_SETUP
 #line 191 "Gmsh.l"
-return tRand;
+return tRuled;
 	YY_BREAK
 case 125:
 YY_RULE_SETUP
 #line 192 "Gmsh.l"
-return tRefineMesh;
+return tRand;
 	YY_BREAK
 case 126:
 YY_RULE_SETUP
 #line 193 "Gmsh.l"
-return tReturn;
+return tRefineMesh;
 	YY_BREAK
 case 127:
 YY_RULE_SETUP
-#line 195 "Gmsh.l"
-return tSmoother;
+#line 194 "Gmsh.l"
+return tReturn;
 	YY_BREAK
 case 128:
 YY_RULE_SETUP
 #line 196 "Gmsh.l"
-return tSqrt;
+return tSmoother;
 	YY_BREAK
 case 129:
 YY_RULE_SETUP
 #line 197 "Gmsh.l"
-return tSin;
+return tSqrt;
 	YY_BREAK
 case 130:
 YY_RULE_SETUP
 #line 198 "Gmsh.l"
-return tSinh;
+return tSin;
 	YY_BREAK
 case 131:
 YY_RULE_SETUP
 #line 199 "Gmsh.l"
-return tSphere;
+return tSinh;
 	YY_BREAK
 case 132:
 YY_RULE_SETUP
 #line 200 "Gmsh.l"
-return tSpline;
+return tSphere;
 	YY_BREAK
 case 133:
 YY_RULE_SETUP
 #line 201 "Gmsh.l"
-return tSplit;
+return tSpline;
 	YY_BREAK
 case 134:
 YY_RULE_SETUP
 #line 202 "Gmsh.l"
-return tSurface;
+return tSplit;
 	YY_BREAK
 case 135:
 YY_RULE_SETUP
 #line 203 "Gmsh.l"
-return tSprintf;
+return tSurface;
 	YY_BREAK
 case 136:
 YY_RULE_SETUP
 #line 204 "Gmsh.l"
-return tStrCat;
+return tSprintf;
 	YY_BREAK
 case 137:
 YY_RULE_SETUP
 #line 205 "Gmsh.l"
-return tStrPrefix;
+return tStrCat;
 	YY_BREAK
 case 138:
 YY_RULE_SETUP
 #line 206 "Gmsh.l"
-return tStrRelative;
+return tStrPrefix;
 	YY_BREAK
 case 139:
 YY_RULE_SETUP
 #line 207 "Gmsh.l"
-return tShow;
+return tStrRelative;
 	YY_BREAK
 case 140:
 YY_RULE_SETUP
 #line 208 "Gmsh.l"
-return tSymmetry;
+return tShow;
 	YY_BREAK
 case 141:
 YY_RULE_SETUP
 #line 209 "Gmsh.l"
-return tSyncModel;
+return tSymmetry;
 	YY_BREAK
 case 142:
 YY_RULE_SETUP
-#line 211 "Gmsh.l"
-return tText2D;
+#line 210 "Gmsh.l"
+return tSyncModel;
 	YY_BREAK
 case 143:
 YY_RULE_SETUP
 #line 212 "Gmsh.l"
-return tText3D;
+return tText2D;
 	YY_BREAK
 case 144:
 YY_RULE_SETUP
 #line 213 "Gmsh.l"
-return tTime;
+return tText3D;
 	YY_BREAK
 case 145:
 YY_RULE_SETUP
 #line 214 "Gmsh.l"
-return tTransfinite;
+return tTime;
 	YY_BREAK
 case 146:
 YY_RULE_SETUP
 #line 215 "Gmsh.l"
-return tTransfQuadTri;
+return tTransfinite;
 	YY_BREAK
 case 147:
 YY_RULE_SETUP
 #line 216 "Gmsh.l"
-return tTranslate;
+return tTransfQuadTri;
 	YY_BREAK
 case 148:
 YY_RULE_SETUP
 #line 217 "Gmsh.l"
-return tTanh;
+return tTranslate;
 	YY_BREAK
 case 149:
 YY_RULE_SETUP
 #line 218 "Gmsh.l"
-return tTan;
+return tTanh;
 	YY_BREAK
 case 150:
 YY_RULE_SETUP
 #line 219 "Gmsh.l"
-return tToday;
+return tTan;
 	YY_BREAK
 case 151:
 YY_RULE_SETUP
-#line 221 "Gmsh.l"
-return tUsing;
+#line 220 "Gmsh.l"
+return tToday;
 	YY_BREAK
 case 152:
 YY_RULE_SETUP
-#line 223 "Gmsh.l"
-return tVolume;
+#line 222 "Gmsh.l"
+return tUsing;
 	YY_BREAK
 case 153:
-#line 226 "Gmsh.l"
+YY_RULE_SETUP
+#line 224 "Gmsh.l"
+return tVolume;
+	YY_BREAK
 case 154:
 #line 227 "Gmsh.l"
 case 155:
 #line 228 "Gmsh.l"
 case 156:
+#line 229 "Gmsh.l"
+case 157:
 YY_RULE_SETUP
-#line 228 "Gmsh.l"
+#line 229 "Gmsh.l"
 { gmsh_yylval.d = atof((char *)gmsh_yytext); return tDOUBLE; }
 	YY_BREAK
-case 157:
+case 158:
 YY_RULE_SETUP
-#line 230 "Gmsh.l"
+#line 231 "Gmsh.l"
 { gmsh_yylval.c = strsave((char*)gmsh_yytext); return tSTRING; }
 	YY_BREAK
-case 158:
+case 159:
 YY_RULE_SETUP
-#line 232 "Gmsh.l"
+#line 233 "Gmsh.l"
 return gmsh_yytext[0];
 	YY_BREAK
-case 159:
+case 160:
 YY_RULE_SETUP
-#line 234 "Gmsh.l"
+#line 235 "Gmsh.l"
 ECHO;
 	YY_BREAK
-#line 2003 "Gmsh.yy.cpp"
+#line 2009 "Gmsh.yy.cpp"
 case YY_STATE_EOF(INITIAL):
 	yyterminate();
 
@@ -2291,7 +2297,7 @@ static int yy_get_next_buffer (void)
 		while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 			{
 			yy_current_state = (int) yy_def[yy_current_state];
-			if ( yy_current_state >= 711 )
+			if ( yy_current_state >= 713 )
 				yy_c = yy_meta[(unsigned int) yy_c];
 			}
 		yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
@@ -2319,11 +2325,11 @@ static int yy_get_next_buffer (void)
 	while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
 		{
 		yy_current_state = (int) yy_def[yy_current_state];
-		if ( yy_current_state >= 711 )
+		if ( yy_current_state >= 713 )
 			yy_c = yy_meta[(unsigned int) yy_c];
 		}
 	yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
-	yy_is_jam = (yy_current_state == 710);
+	yy_is_jam = (yy_current_state == 712);
 
 	return yy_is_jam ? 0 : yy_current_state;
 }
@@ -2996,7 +3002,7 @@ void gmsh_yyfree (void * ptr )
 
 #define YYTABLES_NAME "yytables"
 
-#line 234 "Gmsh.l"
+#line 235 "Gmsh.l"
 
 
 
@@ -3025,7 +3031,7 @@ void parsestring(char endchar)
 {
   int c;
   char tmp[1024];
-  
+
   // Note that we keep special characters (end-of-line \n, tabs \t,
   // etc.) "as is" in the output string: see yyinput() above
   int i = 0;
diff --git a/Parser/Parser.h b/Parser/Parser.h
index 57b59f9760979299a68ab233a70be46bb33369d5..8d128a09b901a622f49144c064ed946ee3f7d4a2 100644
--- a/Parser/Parser.h
+++ b/Parser/Parser.h
@@ -14,6 +14,13 @@ int gmsh_yyparse();
 int gmsh_yylex();
 void gmsh_yyflush();
 
+class gmsh_yysymbol{
+ public:
+  bool list;
+  std::vector<double> value;
+  gmsh_yysymbol() : list(false) {}
+};
+
 // global parser variables that need to be exported
 extern FILE *gmsh_yyin;
 extern int gmsh_yylineno;
@@ -21,6 +28,6 @@ extern char *gmsh_yytext;
 extern int gmsh_yyviewindex;
 extern std::string gmsh_yyname;
 extern int gmsh_yyerrorstate;
-extern std::map<std::string, std::vector<double> > gmsh_yysymbols;
+extern std::map<std::string, gmsh_yysymbol> gmsh_yysymbols;
 
 #endif
diff --git a/doc/texinfo/gmsh.texi b/doc/texinfo/gmsh.texi
index 0778673f22819db5f1ec2d41cdb1deb4a3f645fe..c3aa770751a4e54a42cac929de72f2fa928847bf 100644
--- a/doc/texinfo/gmsh.texi
+++ b/doc/texinfo/gmsh.texi
@@ -1328,6 +1328,7 @@ List of expressions are also widely used, and are defined as:
   @var{expression} : @var{expression} |
   @var{expression} : @var{expression} : @var{expression} |
   @var{string} [ ] |
+  List [ @var{string} ] |
   @var{string} [ @{ @var{expression-list} @} ] |
   Point @{ @var{expression} @} |
   @var{transform} |
@@ -1342,15 +1343,16 @@ containing the range of numbers comprised between two
 @w{@var{expression}s}, with a unit incrementation step. The third case
 also permits to create a list containing the range of numbers comprised
 between two @w{@var{expression}s}, but with a positive or negative
-incrementation step equal to the third @var{expression}. The fourth case
-permits to reference an expression list.  The fifth case permits to
-reference an expression sublist (whose elements are those corresponding
-to the indices provided by the @var{expression-list}).  The next two
-cases permit to retrieve the indices of entities created through
-geometrical transformations and extrusions (see @ref{Transformations},
-and @ref{Extrusions}). The last two cases permit to retrieve the
-coordinates of a given geometry point (@pxref{Points}), or to retrieve
-the id numbers of all points, lines, surfaces or volumes in the model.
+incrementation step equal to the third @var{expression}. The fourth and
+fifth cases permit to reference an expression list.  The sixth case
+permits to reference an expression sublist (whose elements are those
+corresponding to the indices provided by the @var{expression-list}).
+The next two cases permit to retrieve the indices of entities created
+through geometrical transformations and extrusions (see
+@ref{Transformations}, and @ref{Extrusions}). The last two cases permit
+to retrieve the coordinates of a given geometry point (@pxref{Points}),
+or to retrieve the id numbers of all points, lines, surfaces or volumes
+in the model.
 
 To see the practical use of such expressions, have a look at the first
 couple of examples in @ref{Tutorial}. Note that, in order to lighten the
@@ -1814,17 +1816,15 @@ compatibility purposes, the behavior of @code{newl}, @code{news},
 @code{Geometry.OldNewReg} option (@pxref{Geometry options list}).}.
 @end ftable
 
-@item @var{string} [ ] = @{ @};
-Creates a new expression list identifier @code{@var{string}[]} with an
+@item @var{string} = @{ @};
+Creates a new expression list identifier @code{@var{string}} with an
 empty list.
 
-@item @var{string} [ ] = @{ @var{expression-list} @};
-Creates a new expression list identifier @code{@var{string}[]} with the
+@item @var{string} = @{ @var{expression-list} @};
+Creates a new expression list identifier @code{@var{string}} with the
 list @var{expression-list}, or affects @var{expression-list} to an
-existing expression list identifier. (Remember the remark we made when
-we defined @w{@var{expression-list}s}: the braces enclosing an
-@var{expression-list} are optional if the list only contains a single
-item.)
+existing expression list identifier. The following syntax is also
+allowed: @code{@var{string}[] = @{ @var{expression-list} @};}
 
 @item @var{string} [ @{ @var{expression-list} @} ] = @{ @var{expression-list} @};
 Affects each item in the right hand side @var{expression-list} to the
@@ -1832,37 +1832,24 @@ elements (indexed by the left hand side @var{expression-list}) of an
 existing expression list identifier. The two @w{@var{expression-list}s} must
 contain the same number of items. 
 
-@item @var{real-option} = @var{expression};
-Affects @var{expression} to a real option.
-
-@item @var{char-option} = @var{char-expression};
-Affects @var{char-expression} to a character option.
-
-@item @var{color-option} = @var{color-expression};
-Affects @var{color-expression} to a color option.
-
-@item @var{string} | @var{real-option} += @var{expression};
-Adds and affects @var{expression} to an existing expression identifier or to
-a real option.
+@item @var{string} += @var{expression};
+Adds and affects @var{expression} to an existing expression identifier.
 
-@item @var{string} | @var{real-option} -= @var{expression};
-Subtracts and affects @var{expression} to an existing expression identifier
-or to a real option.
+@item @var{string} -= @var{expression};
+Subtracts and affects @var{expression} to an existing expression identifier.
 
-@item @var{string} | @var{real-option} *= @var{expression};
-Multiplies and affects @var{expression} to an existing expression identifier
-or to a real option.
+@item @var{string} *= @var{expression};
+Multiplies and affects @var{expression} to an existing expression identifier.
 
-@item @var{string} | @var{real-option} /= @var{expression};
-Divides and affects @var{expression} to an existing expression identifier
-or to a real option.
+@item @var{string} /= @var{expression};
+Divides and affects @var{expression} to an existing expression identifier.
 
-@item @var{string} [ ] += @{ @var{expression-list} @};
+@item @var{string} += @{ @var{expression-list} @};
 Appends @var{expression-list} to an existing expression list or creates
-a new expression list with @var{expression-list}).
+a new expression list with @var{expression-list}.
 
-@item @var{string} [ ] -= @{ @var{expression-list} @};
-Removes the items in @var{expression-list} from the existing expression.
+@item @var{string} -= @{ @var{expression-list} @};
+Removes the items in @var{expression-list} from the existing expression list.
 
 @item @var{string} [ @{ @var{expression-list} @} ] += @{ @var{expression-list} @};
 Adds and affects, item per item, the right hand side @var{expression-list}
@@ -1880,6 +1867,31 @@ Multiplies and affects, item per item, the right hand side
 Divides and affects, item per item, the right hand side
 @var{expression-list} to an existing expression list identifier.
 
+@item @var{string} = @var{char-expression};
+Creates a new character expression identifier @code{@var{string}} with a
+given @var{char-expression}.
+
+@item @var{real-option} = @var{expression};
+Affects @var{expression} to a real option.
+
+@item @var{char-option} = @var{char-expression};
+Affects @var{char-expression} to a character option.
+
+@item @var{color-option} = @var{color-expression};
+Affects @var{color-expression} to a color option.
+
+@item @var{real-option} += @var{expression};
+Adds and affects @var{expression} to a real option.
+
+@item @var{real-option} -= @var{expression};
+Subtracts and affects @var{expression} to a real option.
+
+@item @var{real-option} *= @var{expression};
+Multiplies and affects @var{expression} to a real option.
+
+@item @var{real-option} /= @var{expression};
+Divides and affects @var{expression} to a real option.
+
 @item Exit;
 Aborts the current script.