(1) If and EndIf now allowed in comments and variable names (with alpha-char...

(1) If and EndIf now allowed in comments and variable names (with alpha-char before or after); (2) Else now possible in If EndIf; (3) Warning if orphan EndIf.

Parser/Gmsh.l

@@ -437,6 +437,7 @@ void skip_until(const char *skip, const char *until)
   }
 }
 
+// Patrick: to be unified soon with skip_until (or perhaps made particular when ElseIf will be added)
 void skip_until_test(const char *skip, const char *until, const char *until2, int *flag_until2)
 {
   int i, nb_skip = 0;

Parser/Gmsh.yy.cpp

@@ -3588,6 +3588,7 @@ void skip_until(const char *skip, const char *until)
   }
 }
 
+// Patrick: to be unified soon with skip_until (or perhaps made particular when ElseIf will be added)
 void skip_until_test(const char *skip, const char *until, const char *until2, int *flag_until2)
 {
   int i, nb_skip = 0;