CommandLine.cpp

// $Id: CommandLine.cpp,v 1.19 2003-06-13 16:53:07 geuzaine Exp $
//
// Copyright (C) 1997-2003 C. Geuzaine, J.-F. Remacle
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
// 
// Please report all bugs and problems to "gmsh@geuz.org".

#include <unistd.h>
#include "Gmsh.h"
#include "GmshUI.h"
#include "GmshVersion.h"
#include "CommandLine.h"
#include "Numeric.h"
#include "Context.h"
#include "Options.h"
#include "Geo.h"
#include "Mesh.h"
#include "Views.h"
#include "OpenFile.h"
#include "Parser.h"

#if !defined(GMSH_MAJOR_VERSION)
#error
#error Common/GmshVersion.h is not up-to-date.
#error Please run 'make tag'.
#error
#endif

extern Context_T CTX;

char *TheFileNameTab[MAX_OPEN_FILES];
char *TheBgmFileName = NULL, *TheOptString = NULL;

// *INDENT-OFF*

char gmsh_progname[]  = "This is Gmsh" ;
char gmsh_copyright[] = "Copyright (C) 1997-2003 Jean-Francois Remacle and Christophe Geuzaine";
char gmsh_version[]   = "Version        : " ;
char gmsh_license[]   = "License        : GNU General Public License" ;
char gmsh_gui[]       = "GUI toolkit    : " ;
char gmsh_os[]        = "Build OS       : " GMSH_OS ;
char gmsh_options[]   = "Build options  : " ;
char gmsh_date[]      = "Build date     : " GMSH_DATE ;
char gmsh_host[]      = "Build host     : " GMSH_HOST ;
char gmsh_packager[]  = "Packager       : " GMSH_PACKAGER ;
char gmsh_url[]       = "Web site       : http://www.geuz.org/gmsh/" ;
char gmsh_email[]     = "Mailing list   : gmsh@geuz.org" ;

// If you change the following, please also change
// * the texinfo documentation (doc/texinfo/command_line.texi)
// * the man page (doc/gmsh.1)

void Print_Usage(char *name){
  Msg(DIRECT, "Usage: %s [options] [files]", name);
  Msg(DIRECT, "Geometry options:");
  Msg(DIRECT, "  -0                    parse input files, output unrolled geometry, and exit");
  Msg(DIRECT, "Mesh options:");
  Msg(DIRECT, "  -1, -2, -3            perform batch 1D, 2D and 3D mesh generation");
  Msg(DIRECT, "  -saveall              save all elements (discard physical group definitions)");
  Msg(DIRECT, "  -o file               specify mesh output file name");
  Msg(DIRECT, "  -format msh|unv|gref  set output mesh format (default: msh)");
  Msg(DIRECT, "  -algo iso|tri|aniso   select 2D mesh algorithm (default: iso)");
  Msg(DIRECT, "  -smooth int           set mesh smoothing (default: 0)");
  //  Msg(DIRECT, "  -degree int           set mesh degree (default: 1)");
  Msg(DIRECT, "  -scale float          set global scaling factor (default: 1.0)");
  Msg(DIRECT, "  -meshscale float      set mesh scaling factor (default: 1.0)");
  Msg(DIRECT, "  -clscale float        set characteristic length scaling factor (default: 1.0)");
  Msg(DIRECT, "  -rand float           set random perturbation factor (default: 1.e-4)");
  Msg(DIRECT, "  -bgm file             load backround mesh from file");
  Msg(DIRECT, "  -constrain            constrain background mesh with characteristic lengths");
  Msg(DIRECT, "  -histogram            print mesh quality histogram");
  Msg(DIRECT, "  -extrude              use old extrusion mesh generator");
  Msg(DIRECT, "  -recombine            recombine meshes from old extrusion mesh generator");
#if defined(HAVE_FLTK)
  Msg(DIRECT, "  -interactive          display 2D mesh construction interactively");
  Msg(DIRECT, "Post-processing options:");
  Msg(DIRECT, "  -dl                   enable display lists");
  Msg(DIRECT, "  -noview               hide all views on startup");
  Msg(DIRECT, "  -link int             select link mode between views (default: 0)");
  Msg(DIRECT, "  -smoothview           smooth views");
  Msg(DIRECT, "  -convert file file    convert an ascii view into a binary one");
  Msg(DIRECT, "Display options:");    
  Msg(DIRECT, "  -nodb                 disable double buffering");
  Msg(DIRECT, "  -fontsize int         specify the font size for the GUI (default: 12)");
  Msg(DIRECT, "  -scheme string        specify FLTK scheme");
  Msg(DIRECT, "  -alpha                enable alpha blending");
  Msg(DIRECT, "  -notrack              don't use trackball mode for rotations");
  Msg(DIRECT, "  -display string       specify display");
  Msg(DIRECT, "  -perspective          set projection mode to perspective");
#endif
  Msg(DIRECT, "Other options:");      
#if defined(HAVE_FLTK)
  Msg(DIRECT, "  -a, -g, -m, -s, -p    start in automatic, geometry, mesh, solver or");
  Msg(DIRECT, "                        post-processing mode (default: automatic)");
#endif
  Msg(DIRECT, "  -v int                set verbosity level (default: 2)");
  Msg(DIRECT, "  -string \"string\"      parse string before project file");
  Msg(DIRECT, "  -option file          parse option file before GUI creation");
  Msg(DIRECT, "  -version              show version number");
  Msg(DIRECT, "  -info                 show detailed version information");
  Msg(DIRECT, "  -help                 show this message");
}

char *Get_BuildOptions(void)
{
  static int first=1;
  static char opt[128] = "";
  
  if(first){
#if defined(HAVE_GSL)
    strcat(opt, "GSL ");
#endif
#if defined(HAVE_TRIANGLE)
    strcat(opt, "TRIANGLE ");
#endif
#if defined(HAVE_LIBJPEG)
    strcat(opt, "JPEG ");
#endif
#if defined(HAVE_LIBPNG)
    strcat(opt, "PNG ");
#endif
    first = 0;
  }
  return opt;
}

// *INDENT-ON*

void Get_Options(int argc, char *argv[], int *nbfiles)
{
  int i = 1;

  // This symbol context is local to option parsing (the symbols will
  // not interfere with subsequent OpenFiles)

  InitSymbols();

  // Parse session and option files

  ParseFile(CTX.sessionrc_filename, 1);
  ParseFile(CTX.optionsrc_filename, 1);

  // Get command line options

  TheFileNameTab[0] = CTX.default_filename;
  *nbfiles = 0;

  while(i < argc) {

    if(argv[i][0] == '-') {

      if(!strcmp(argv[i] + 1, "string")) {
        i++;
        if(argv[i] != NULL)
          TheOptString = argv[i++];
        else {
          fprintf(stderr, ERROR_STR "Missing string\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "a")) {
        CTX.initial_context = 0;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "g")) {
        CTX.initial_context = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "m")) {
        CTX.initial_context = 2;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "s")) {
        CTX.initial_context = 3;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "p")) {
        CTX.initial_context = 4;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "0")) {
        CTX.batch = -1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "1")) {
        CTX.batch = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "2")) {
        CTX.batch = 2;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "3")) {
        CTX.batch = 3;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "saveall")) {
        CTX.mesh.save_all = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "extrude")) {        //old extrusion mesh generator
        CTX.mesh.oldxtrude = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "recombine")) {      //old extrusion mesh generator
        CTX.mesh.oldxtrude_recombine = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "dupli")) {
        CTX.mesh.check_duplicates = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "histogram")) {
        CTX.mesh.histogram = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "option")) {
        i++;
        if(argv[i] != NULL)
          ParseFile(argv[i++], 1);
        else {
          fprintf(stderr, ERROR_STR "Missing file name\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "o")) {
        i++;
        if(argv[i] != NULL)
          CTX.output_filename = argv[i++];
        else {
          fprintf(stderr, ERROR_STR "Missing file name\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "bgm")) {
        i++;
        if(argv[i] != NULL)
          TheBgmFileName = argv[i++];
        else {
          fprintf(stderr, ERROR_STR "Missing file name\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "constrain")) {
        CTX.mesh.constrained_bgmesh = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "convert")) {
        i++;
        CTX.terminal = 1;
        if(argv[i] && argv[i + 1]) {
          ParseFile(argv[i], 0);
          if(List_Nbr(CTX.post.list))
            WriteView(1, (Post_View *) List_Pointer(CTX.post.list, 0),
                      argv[i + 1]);
          else
            fprintf(stderr, ERROR_STR "No view to convert\n");
        }
        else
          fprintf(stderr, "Usage: %s -convert view.ascii view.binary\n",
                  argv[0]);
        exit(1);
      }
      else if(!strcmp(argv[i] + 1, "old")) {
        CTX.geom.old_circle = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "initial")) {
        i++;
        if(argv[i] != NULL)
          CTX.mesh.initial_only = atoi(argv[i++]);
        else {
          fprintf(stderr, ERROR_STR "Missing number\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "quality")) {
        i++;
        if(argv[i] != NULL)
          CTX.mesh.quality = atof(argv[i++]);
        else {
          fprintf(stderr, ERROR_STR "Missing number\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "scale")) {
        i++;
        if(argv[i] != NULL)
          CTX.geom.scaling_factor = atof(argv[i++]);
        else {
          fprintf(stderr, ERROR_STR "Missing number\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "meshscale")) {
        i++;
        if(argv[i] != NULL)
          CTX.mesh.scaling_factor = atof(argv[i++]);
        else {
          fprintf(stderr, ERROR_STR "Missing number\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "rand")) {
        i++;
        if(argv[i] != NULL)
          CTX.mesh.rand_factor = atof(argv[i++]);
        else {
          fprintf(stderr, ERROR_STR "Missing number\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "clscale")) {
        i++;
        if(argv[i] != NULL) {
          CTX.mesh.lc_factor = atof(argv[i++]);
          if(CTX.mesh.lc_factor <= 0.0) {
            fprintf(stderr, ERROR_STR
                    "Characteristic length factor must be > 0\n");
            exit(1);
          }
        }
        else {
          fprintf(stderr, ERROR_STR "Missing number\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "smooth")) {
        i++;
        if(argv[i] != NULL)
          CTX.mesh.nb_smoothing = atoi(argv[i++]);
        else {
          fprintf(stderr, ERROR_STR "Missing number\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "degree")) {
        i++;
        if(argv[i] != NULL)
          opt_mesh_degree(0, GMSH_SET, atof(argv[i++]));
        else {
          fprintf(stderr, ERROR_STR "Missing number\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "format") || !strcmp(argv[i] + 1, "f")) {
        i++;
        if(argv[i] != NULL) {
          if(!strcmp(argv[i], "msh") ||
             !strcmp(argv[i], "MSH") || !strcmp(argv[i], "gmsh")) {
            CTX.mesh.format = FORMAT_MSH;
          }
          else if(!strcmp(argv[i], "unv") ||
                  !strcmp(argv[i], "UNV") || !strcmp(argv[i], "ideas")) {
            CTX.mesh.format = FORMAT_UNV;
          }
          else if(!strcmp(argv[i], "gref") ||
                  !strcmp(argv[i], "GREF") || !strcmp(argv[i], "Gref")) {
            CTX.mesh.format = FORMAT_GREF;
          }
          else {
            fprintf(stderr, ERROR_STR "Unknown mesh format\n");
            exit(1);
          }
          i++;
        }
        else {
          fprintf(stderr, ERROR_STR "Missing format\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "algo")) {
        i++;
        if(argv[i] != NULL) {
          if(!strncmp(argv[i], "iso", 3))
            CTX.mesh.algo = DELAUNAY_ISO;
          else if(!strncmp(argv[i], "tri", 3))
            CTX.mesh.algo = DELAUNAY_SHEWCHUK;
          else if(!strncmp(argv[i], "aniso", 5))
            CTX.mesh.algo = DELAUNAY_ANISO;
          else {
            fprintf(stderr, ERROR_STR "Unknown mesh algorithm\n");
            exit(1);
          }
          i++;
        }
        else {
          fprintf(stderr, ERROR_STR "Missing algorithm\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "version") ||
              !strcmp(argv[i] + 1, "-version")) {
        fprintf(stderr, "%d.%d.%d\n", GMSH_MAJOR_VERSION, GMSH_MINOR_VERSION,
                GMSH_PATCH_VERSION);
        exit(1);
      }
      else if(!strcmp(argv[i] + 1, "info") || !strcmp(argv[i] + 1, "-info")) {
        fprintf(stderr, "%s\n", gmsh_progname);
        fprintf(stderr, "%s\n", gmsh_copyright);
        fprintf(stderr, "%s%d.%d.%d\n", gmsh_version, GMSH_MAJOR_VERSION,
                GMSH_MINOR_VERSION, GMSH_PATCH_VERSION);
#if defined(HAVE_FLTK)
        fprintf(stderr, "%sFLTK %d.%d.%d\n", gmsh_gui, FL_MAJOR_VERSION,
                FL_MINOR_VERSION, FL_PATCH_VERSION);
#else
        fprintf(stderr, "%snone\n", gmsh_gui);
#endif
        fprintf(stderr, "%s\n", gmsh_license);
        fprintf(stderr, "%s\n", gmsh_os);
        fprintf(stderr, "%s%s\n", gmsh_options, Get_BuildOptions());
        fprintf(stderr, "%s\n", gmsh_date);
        fprintf(stderr, "%s\n", gmsh_host);
        fprintf(stderr, "%s\n", gmsh_packager);
        fprintf(stderr, "%s\n", gmsh_url);
        fprintf(stderr, "%s\n", gmsh_email);
        exit(1);
      }
      else if(!strcmp(argv[i] + 1, "help") || !strcmp(argv[i] + 1, "-help")) {
        fprintf(stderr, "%s\n", gmsh_progname);
        fprintf(stderr, "%s\n", gmsh_copyright);
        CTX.terminal = 1;
        Print_Usage(argv[0]);
        exit(1);
      }
      else if(!strcmp(argv[i] + 1, "v")) {
        i++;
        if(argv[i] != NULL)
          CTX.verbosity = atoi(argv[i++]);
        else {
          fprintf(stderr, ERROR_STR "Missing number\n");
          exit(1);
        }
      }
#if defined(HAVE_FLTK)
      else if(!strcmp(argv[i] + 1, "noterm")) {
        CTX.terminal = 0;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "term")) {
        CTX.terminal = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "alpha")) {
        CTX.alpha = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "notrack")) {
        CTX.useTrackball = 0;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "dual")) {
        CTX.mesh.dual = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "interactive")) {
        CTX.mesh.interactive = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "noview")) {
        opt_view_visible(0, GMSH_SET, 0);
        i++;
      }
      else if(!strcmp(argv[i] + 1, "plugin")) {
        opt_general_default_plugins(0, GMSH_SET, 1);
        i++;
      }
      else if(!strcmp(argv[i] + 1, "noplugin")) {
        opt_general_default_plugins(0, GMSH_SET, 0);
        i++;
      }
      else if(!strcmp(argv[i] + 1, "link")) {
        i++;
        if(argv[i] != NULL)
          CTX.post.link = atoi(argv[i++]);
        else {
          fprintf(stderr, ERROR_STR "Missing number\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "fill")) {
        opt_view_intervals_type(0, GMSH_SET, DRAW_POST_CONTINUOUS);
        i++;
      }
      else if(!strcmp(argv[i] + 1, "smoothview")) {
        CTX.post.smooth = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "nbiso")) {
        i++;
        if(argv[i] != NULL)
          opt_view_nb_iso(0, GMSH_SET, atoi(argv[i++]));
        else {
          fprintf(stderr, ERROR_STR "Missing number\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "command") || !strcmp(argv[i] + 1, "c")) {
        CTX.command_win = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "nocommand") ||
              !strcmp(argv[i] + 1, "noc")) {
        CTX.command_win = 0;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "overlay") || !strcmp(argv[i] + 1, "ov")) {
        CTX.overlay = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "nooverlay") ||
              !strcmp(argv[i] + 1, "noov")) {
        CTX.overlay = CTX.geom.highlight = 0;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "hh")) {
        CTX.overlay = 0;
        CTX.geom.highlight = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "perspective") ||
              !strcmp(argv[i] + 1, "p")) {
        CTX.ortho = 0;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "ortho") || !strcmp(argv[i] + 1, "o")) {
        CTX.ortho = 0;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "threads")) {
        CTX.threads = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "nothreads")) {
        CTX.threads = 0;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "db")) {
        CTX.db = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "nodb")) {
        CTX.db = 0;
        CTX.geom.highlight = 0;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "dl")) {
        CTX.post.display_lists = 1;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "nodl")) {
        CTX.post.display_lists = 0;
        i++;
      }
      else if(!strcmp(argv[i] + 1, "fontsize")) {
        i++;
        if(argv[i] != NULL) {
          CTX.fontsize = atoi(argv[i]);
          i++;
        }
        else {
          fprintf(stderr, ERROR_STR "Missing number\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "scheme")) {
        i++;
        if(argv[i] != NULL) {
          CTX.theme = argv[i];
          i++;
        }
        else {
          fprintf(stderr, ERROR_STR "Missing argument\n");
          exit(1);
        }
      }
      else if(!strcmp(argv[i] + 1, "display")) {
        i++;
        if(argv[i] != NULL) {
          CTX.display = argv[i];
          i++;
        }
        else {
          fprintf(stderr, ERROR_STR "Missing argument\n");
          exit(1);
        }
      }
#endif
      else {
#if defined(__APPLE__)
        // The Mac Finder launches programs with special command line
        // arguments: just ignore them (and don't exit!)
        fprintf(stderr, "Unknown option '%s'\n", argv[i]);
        i++;
#else
        fprintf(stderr, "Unknown option '%s'\n", argv[i]);
        CTX.terminal = 1;
        Print_Usage(argv[0]);
        exit(1);
#endif
      }
    }

    else {
      if(*nbfiles < MAX_OPEN_FILES)
        TheFileNameTab[(*nbfiles)++] = argv[i++];
      else {
        fprintf(stderr, ERROR_STR "Too many input files\n");
        exit(1);
      }
    }

  }

  strncpy(CTX.filename, TheFileNameTab[0], 255);
}