]> git.saurik.com Git - bison.git/blobdiff - src/vcg.c
* src/LR0.c (state_list_t, state_list_append): New.
[bison.git] / src / vcg.c
index acaffc043be725c4e77a0a19c97b04ebec591ce5..a5a5a303663c8d0adc2c88e87dd69bb25ca8db78 100644 (file)
--- a/src/vcg.c
+++ b/src/vcg.c
@@ -1,5 +1,5 @@
 /* VCG description handler for Bison.
-   Copyright 2001 Free Software Foundation, Inc.
+   Copyright 2001, 2002 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
 #include "system.h"
 #include "vcg.h"
 #include "vcg_defaults.h"
-#include "xalloc.h"
+#include "quotearg.h"
+
+/* Return an unambiguous printable representated, for NAME, suitable
+   for C strings.  Use slot 2 since the user may use slots 0 and 1.
+   */
+
+static char const *
+quote (char const *name)
+{
+  return quotearg_n_style (2, c_quoting_style, name);
+}
+
 
 /* Initialize a graph with the default values. */
 void
@@ -29,15 +40,15 @@ new_graph (graph_t *g)
 {
   g->title = G_TITLE;
   g->label = G_LABEL;
-  
+
   g->infos[0] = G_INFOS1;
   g->infos[1] = G_INFOS2;
   g->infos[2] = G_INFOS3;
-  
+
   g->color = G_COLOR;
   g->textcolor = G_TEXTCOLOR;
   g->bordercolor = G_BORDERCOLOR;
-  
+
   g->width = G_WIDTH;
   g->height = G_HEIGHT;
   g->borderwidth = G_BORDERWIDTH;
@@ -49,17 +60,20 @@ new_graph (graph_t *g)
 
   g->textmode = G_TEXTMODE;
   g->shape = G_SHAPE;
-  
+
+  g->vertical_order = G_VERTICAL_ORDER;
+  g->horizontal_order = G_HORIZONTAL_ORDER;
+
   g->xmax = G_XMAX; /* Not output. */
   g->ymax = G_YMAX; /* Not output. */
-  
+
   g->xbase = G_XBASE;
   g->ybase = G_YBASE;
 
   g->xspace = G_XSPACE;
   g->yspace = G_YSPACE;
   g->xlspace = G_XLSPACE; /* Not output. */
-  
+
   g->xraster = G_XRASTER;
   g->yraster = G_YRASTER;
   g->xlraster = G_XLRASTER;
@@ -67,13 +81,13 @@ new_graph (graph_t *g)
   g->hidden = G_HIDDEN; /* No default value. */
 
   g->classname = G_CLASSNAME; /* No class name association. */
-  
+
   g->layoutalgorithm = G_LAYOUTALGORITHM;
   g->layout_downfactor = G_LAYOUT_DOWNFACTOR;
   g->layout_upfactor = G_LAYOUT_UPFACTOR;
   g->layout_nearfactor = G_LAYOUT_NEARFACTOR;
   g->layout_splinefactor = G_LAYOUT_SPLINEFACTOR;
-  
+
   g->late_edge_labels = G_LATE_EDGE_LABELS;
   g->display_edge_labels = G_DISPLAY_EDGE_LABELS;
   g->dirty_edge_labels = G_DIRTY_EDGE_LABELS;
@@ -84,7 +98,7 @@ new_graph (graph_t *g)
   g->manhattan_edges = G_MANHATTAN_EDGES;
   g->smanhattan_edges = G_SMANHATTAN_EDGES;
   g->near_edges = G_NEAR_EDGES;
-  
+
   g->orientation = G_ORIENTATION;
   g->node_alignement = G_NODE_ALIGNEMENT;
   g->port_sharing = G_PORT_SHARING;
@@ -108,10 +122,10 @@ new_graph (graph_t *g)
   g->rmin = G_RMIN;
   g->rmax = G_RMAX;
   g->smax = G_SMAX;
-  
+
   g->node_list = G_NODE_LIST;
   g->edge_list = G_EDGE_LIST;
-  
+
   new_edge(&g->edge);
   new_node(&g->node);
 }
@@ -122,33 +136,33 @@ new_node (node_t *node)
 {
   node->title = N_TITLE;
   node->label = N_LABEL;
-  
+
   node->locx = N_LOCX; /* Default unspcified. */
   node->locy = N_LOCY; /* Default unspcified. */
-  
+
   node->vertical_order = N_VERTICAL_ORDER;     /* Default unspcified. */
   node->horizontal_order = N_HORIZONTAL_ORDER; /* Default unspcified. */
-  
+
   node->width = N_WIDTH; /* We assume that we can't define it now. */
   node->height = N_HEIGHT; /* Also. */
-  
+
   node->shrink = N_SHRINK;
   node->stretch = N_STRETCH;
-  
+
   node->folding = N_FOLDING; /* No explicit default value. */
-  
+
   node->shape = N_SHAPE;
   node->textmode = N_TEXTMODE;
   node->borderwidth = N_BORDERWIDTH;
-  
+
   node->color = N_COLOR;
   node->textcolor = N_TEXTCOLOR;
   node->bordercolor = N_BORDERCOLOR;
-  
+
   node->infos[0] = N_INFOS1;
   node->infos[1] = N_INFOS2;
   node->infos[2] = N_INFOS3;
-  
+
   node->next = N_NEXT;
 }
 
@@ -197,41 +211,41 @@ get_color_str (enum color_e c)
 {
   switch (c)
     {
-    case white:                return ("white");
-    case blue:         return ("blue");
-    case red:          return ("red");
-    case green:                return ("green");
-    case yellow:       return ("yellow");
-    case magenta:      return ("magenta");
-    case cyan:         return ("cyan");
-    case darkgrey:     return ("darkgrey");
-    case darkblue:     return ("darkblue");
-    case darkred:      return ("darkred");
-    case darkgreen:    return ("darkgreen");
-    case darkyellow:   return ("darkyellow");
-    case darkmagenta:  return ("darkmagenta");
-    case darkcyan:     return ("darkcyan");
-    case gold:         return ("gold");
-    case lightgrey:    return ("lightgrey");
-    case lightblue:    return ("lightblue");
-    case lightred:     return ("lightred");
-    case lightgreen:   return ("lightgreen");
-    case lightyellow:  return ("lightyellow");
-    case lightmagenta: return ("lightmagenta");
-    case lightcyan:    return ("lightcyan");
-    case lilac:                return ("lilac");
-    case turquoise:    return ("turquoise");
-    case aquamarine:   return ("aquamarine");
-    case khaki:                return ("khaki");
-    case purple:       return ("purple");
-    case yellowgreen:  return ("yellowgreen");
-    case pink:         return ("pink");
-    case orange:       return ("orange");
-    case orchid:       return ("orchid");
-    case black:                return ("black");
+    case white:                return "white";
+    case blue:         return "blue";
+    case red:          return "red";
+    case green:                return "green";
+    case yellow:       return "yellow";
+    case magenta:      return "magenta";
+    case cyan:         return "cyan";
+    case darkgrey:     return "darkgrey";
+    case darkblue:     return "darkblue";
+    case darkred:      return "darkred";
+    case darkgreen:    return "darkgreen";
+    case darkyellow:   return "darkyellow";
+    case darkmagenta:  return "darkmagenta";
+    case darkcyan:     return "darkcyan";
+    case gold:         return "gold";
+    case lightgrey:    return "lightgrey";
+    case lightblue:    return "lightblue";
+    case lightred:     return "lightred";
+    case lightgreen:   return "lightgreen";
+    case lightyellow:  return "lightyellow";
+    case lightmagenta: return "lightmagenta";
+    case lightcyan:    return "lightcyan";
+    case lilac:                return "lilac";
+    case turquoise:    return "turquoise";
+    case aquamarine:   return "aquamarine";
+    case khaki:                return "khaki";
+    case purple:       return "purple";
+    case yellowgreen:  return "yellowgreen";
+    case pink:         return "pink";
+    case orange:       return "orange";
+    case orchid:       return "orchid";
+    case black:                return "black";
     default:
-      complain (_("vcg graph: no such a color."));
-      return (get_color_str(G_COLOR));
+#define A_known_default_color 0
+      assert (A_known_default_color);
     }
   return NULL;
 }
@@ -241,12 +255,12 @@ get_textmode_str (enum textmode_e t)
 {
   switch (t)
     {
-    case centered:     return ("center");
-    case left_justify: return ("left_justify");
-    case right_justify:        return ("right_justify");
+    case centered:     return "center";
+    case left_justify: return "left_justify";
+    case right_justify:        return "right_justify";
     default:
-      complain (_("vcg graph: no such a text mode.."));
-      return (get_textmode_str(G_TEXTMODE));
+#define A_known_text_mode 0
+      assert (A_known_text_mode);
     }
   return NULL;
 }
@@ -256,13 +270,13 @@ get_shape_str (enum shape_e s)
 {
   switch (s)
     {
-    case box:          return ("box");
-    case rhomb:                return ("rhomb");
-    case ellipse:      return ("ellipse");
-    case triangle:     return ("triangle");
+    case box:          return "box";
+    case rhomb:                return "rhomb";
+    case ellipse:      return "ellipse";
+    case triangle:     return "triangle";
     default:
-      complain (_("vcg graph: no such a shape.."));
-      return (get_shape_str(G_SHAPE));
+#define A_known_shape 0
+      assert (A_known_shape);
     }
   return NULL;
 }
@@ -272,36 +286,37 @@ get_layoutalgorithm_str (enum layoutalgorithm_e l)
 {
   switch (l)
     {
-    case normal:               return ("normal"); 
-    case maxdepth:     return ("maxdepth");
-    case mindepth:     return ("mindepth");
-    case maxdepthslow: return ("maxdepthslow");
-    case mindepthslow: return ("mindepthslow");
-    case maxdegree:    return ("maxdegree");
-    case mindegree:    return ("mindegree");
-    case maxindegree:  return ("maxindegree");
-    case minindegree:  return ("minindegree");
-    case maxoutdegree: return ("maxoutdegree");
-    case minoutdegree: return ("minoutdegree");
-    case minbackward:  return ("minbackward");
-    case dfs:          return ("dfs");
-    case tree:         return ("tree");
-    default:           
-      return ("normal");
+    case normal:               return "normal";
+    case maxdepth:     return "maxdepth";
+    case mindepth:     return "mindepth";
+    case maxdepthslow: return "maxdepthslow";
+    case mindepthslow: return "mindepthslow";
+    case maxdegree:    return "maxdegree";
+    case mindegree:    return "mindegree";
+    case maxindegree:  return "maxindegree";
+    case minindegree:  return "minindegree";
+    case maxoutdegree: return "maxoutdegree";
+    case minoutdegree: return "minoutdegree";
+    case minbackward:  return "minbackward";
+    case dfs:          return "dfs";
+    case tree:         return "tree";
+    default:
+#define A_known_layout_algorithm 0
+      assert (A_known_layout_algorithm);
     }
   return NULL;
 }
 
 static const char *
-get_decision_str (enum decision_e d, enum decision_e defaults)
+get_decision_str (enum decision_e d)
 {
   switch (d)
     {
-    case no:   return ("no");
-    case yes:  return ("yes");
+    case no:   return "no";
+    case yes:  return "yes";
     default:
-      complain (_("vcg graph: no such a decision.."));
-      return (get_decision_str(defaults, 0));
+#define Either_yes_nor_no 0
+      assert (Either_yes_nor_no);
     }
   return NULL;
 }
@@ -311,13 +326,13 @@ get_orientation_str (enum orientation_e o)
 {
   switch (o)
     {
-    case top_to_bottom:        return ("top_to_bottom");
-    case bottom_to_top: return ("bottom_to_top");
-    case left_to_right: return ("left_to_right");
-    case right_to_left: return ("right_to_left");
+    case top_to_bottom:        return "top_to_bottom";
+    case bottom_to_top: return "bottom_to_top";
+    case left_to_right: return "left_to_right";
+    case right_to_left: return "right_to_left";
     default:
-      complain (_("vcg graph: no such an orientation.."));
-      return (get_orientation_str(G_ORIENTATION));
+#define A_knownn_orientation 0
+      assert (A_knownn_orientation);
     }
   return NULL;
 }
@@ -327,12 +342,12 @@ get_node_alignement_str (enum alignement_e a)
 {
   switch (a)
     {
-    case center:       return ("center");
-    case top:          return ("top");
-    case bottom:       return ("bottom");
+    case center:       return "center";
+    case top:          return "top";
+    case bottom:       return "bottom";
     default:
-      complain (_("vcg graph: no such an alignement.."));
-      return (get_node_alignement_str(G_NODE_ALIGNEMENT));
+#define A_known_alignement 0
+      assert (A_known_alignement);
     }
   return NULL;
 }
@@ -342,11 +357,11 @@ get_arrow_mode_str (enum arrow_mode_e a)
 {
   switch (a)
     {
-    case fixed:                return ("fixed");
-    case free_a:       return ("free");
+    case fixed:                return "fixed";
+    case free_a:       return "free";
     default:
-      complain (_("vcg graph: no such an arrow mode.."));
-      return (get_arrow_mode_str(G_ARROW_MODE));
+#define A_known_arrow_mode 0
+      assert (A_known_arrow_mode);
     }
   return NULL;
 }
@@ -356,14 +371,14 @@ get_crossing_type_str (enum crossing_type_e c)
 {
   switch (c)
     {
-    case bary:         return ("bary");
-    case median:       return ("median");
-    case barymedian:   return ("barymedian");
-    case medianbary:   return ("medianbary");
+    case bary:         return "bary";
+    case median:       return "median";
+    case barymedian:   return "barymedian";
+    case medianbary:   return "medianbary";
     default:
-      complain (_("vcg graph: no such a crossing_type.."));
-      return (get_crossing_type_str(G_CROSSING_WEIGHT));  
-    }  
+#define A_known_crossing_type 0
+      assert (A_known_crossing_type);
+    }
   return NULL;
 }
 
@@ -372,14 +387,14 @@ get_view_str (enum view_e v)
 {
   switch (v)
     {
-    case normal_view:  return ("normal_view");
-    case cfish:                return ("cfish");
-    case pfish:                return ("pfish");
-    case fcfish:       return ("fcfish");
-    case fpfish:       return ("fpfish");
+    case normal_view:  return "normal_view";
+    case cfish:                return "cfish";
+    case pfish:                return "pfish";
+    case fcfish:       return "fcfish";
+    case fpfish:       return "fpfish";
     default:
-      complain (_("vcg graph: no such a view.."));
-      return (get_view_str(G_VIEW));  
+#define A_known_view 0
+      assert (A_known_view);
     }
   return NULL;
 }
@@ -389,14 +404,14 @@ get_linestyle_str (enum linestyle_e l)
 {
   switch (l)
     {
-    case continuous:   return ("continuous");
-    case dashed:       return ("dashed");
-    case dotted:       return ("dotted");
-    case invisible:    return ("invisible");
+    case continuous:   return "continuous";
+    case dashed:       return "dashed";
+    case dotted:       return "dotted";
+    case invisible:    return "invisible";
     default:
-      complain (_("vcg graph: no such a linestyle.."));
-      return (get_linestyle_str(E_LINESTYLE));  
-    } 
+#define A_known_line_style 0
+      assert (A_known_line_style);
+    }
   return NULL;
 }
 
@@ -405,12 +420,12 @@ get_arrowstyle_str (enum arrowstyle_e a)
 {
   switch (a)
     {
-    case solid:        return ("solid");
-    case line: return ("line");
-    case none: return ("none");
+    case solid:        return "solid";
+    case line: return "line";
+    case none: return "none";
     default:
-      complain (_("vcg graph: no such an arrowstyle.."));
-      return (get_arrowstyle_str(E_ARROWSTYLE));  
+#define A_known_arrow_style 0
+      assert (A_known_arrow_style);
     }
   return NULL;
 }
@@ -434,453 +449,462 @@ add_edge (graph_t *graph, edge_t *edge)
   graph->edge_list = edge;
 }
 
+void
+add_classname (graph_t *g, int val, const char *name)
+{
+  struct classname_s *classname;
+
+  classname = XMALLOC (struct classname_s, 1);
+  classname->no = val;
+  classname->name = name;
+  classname->next = g->classname;
+  g->classname = classname;
+}
+
+void
+add_infoname (graph_t *g, int integer, const char *string)
+{
+  struct infoname_s *infoname;
+
+  infoname = XMALLOC (struct infoname_s, 1);
+  infoname->integer = integer;
+  infoname->string = string;
+  infoname->next = g->infoname;
+  g->infoname = infoname;
+}
+
+/* Build a colorentry struct and add it to the list.  */
+void
+add_colorentry (graph_t *g, int color_idx, int red_cp,
+               int green_cp, int blue_cp)
+{
+  struct colorentry_s *ce;
+
+  ce = XMALLOC (struct colorentry_s, 1);
+  ce->color_index = color_idx;
+  ce->red_cp = red_cp;
+  ce->green_cp = green_cp;
+  ce->blue_cp = blue_cp;
+  ce->next = g->colorentry;
+  g->colorentry = ce;
+}
+
 /*-------------------------------------.
 | Open and close functions (formatted) |
 `-------------------------------------*/
 
 void
-open_edge(edge_t *edge, struct obstack *os)
+open_edge(edge_t *edge, FILE *fout)
 {
   switch (edge->type)
     {
     case normal_edge:
-      obstack_sgrow (os, "\tedge: {\n");
+      fputs ("\tedge: {\n", fout);
       break;
     case back_edge:
-      obstack_sgrow (os, "\tbackedge: {\n");
+      fputs ("\tbackedge: {\n", fout);
       break;
     case near_edge:
-      obstack_sgrow (os, "\tnearedge: {\n");
+      fputs ("\tnearedge: {\n", fout);
       break;
     case bent_near_edge:
-      obstack_sgrow (os, "\tbentnearedge: {\n");
-      break;  
+      fputs ("\tbentnearedge: {\n", fout);
+      break;
     default:
-      obstack_sgrow (os, "\tedge: {\n");
-    }  
+      fputs ("\tedge: {\n", fout);
+    }
 }
 
 void
-close_edge(struct obstack *os)
+close_edge(FILE *fout)
 {
-  obstack_sgrow (os, "\t}\n");    
+  fputs ("\t}\n", fout);
 }
 
 void
-open_node(struct obstack *os)
+open_node(FILE *fout)
 {
-  obstack_sgrow (os, "\tnode: {\n");
+  fputs ("\tnode: {\n", fout);
 }
 
 void
-close_node(struct obstack *os)
-{  
-  obstack_sgrow (os, "\t}\n");
+close_node(FILE *fout)
+{
+  fputs ("\t}\n", fout);
 }
 
 void
-open_graph(struct obstack *os)
+open_graph(FILE *fout)
 {
-  obstack_sgrow (os, "graph: {\n");
+  fputs ("graph: {\n", fout);
 }
 
 void
-close_graph(graph_t *graph, struct obstack *os)
+close_graph(graph_t *graph, FILE *fout)
 {
-  obstack_1grow (os, '\n');
+  fputc ('\n', fout);
 
+  /* FIXME: Unallocate nodes and edges if required.  */
   {
     node_t *node;
-    
+
     for (node = graph->node_list; node; node = node->next)
       {
-       open_node (os);
-       output_node (node, os);
-       close_node (os);
+       open_node (fout);
+       output_node (node, fout);
+       close_node (fout);
       }
   }
-  
-  obstack_1grow (os, '\n');
-  
+
+  fputc ('\n', fout);
+
   {
     edge_t *edge;
-    
+
     for (edge = graph->edge_list; edge; edge = edge->next)
-      {      
-       open_edge (edge, os);
-       output_edge (edge, os);
-       close_edge (os);
+      {
+       open_edge (edge, fout);
+       output_edge (edge, fout);
+       close_edge (fout);
       }
   }
-  
-  obstack_sgrow (os, "}\n");
-}    
-  
+
+  fputs ("}\n", fout);
+}
+
 /*-------------------------------------------.
-| Output functions (formatted) in obstack os |
+| Output functions (formatted) in file FOUT  |
 `-------------------------------------------*/
 
 void
-output_node (node_t *node, struct obstack *os)
+output_node (node_t *node, FILE *fout)
 {
   if (node->title != N_TITLE)
-    obstack_fgrow1 (os, "\t\ttitle:\t\"%s\"\n", node->title);
+    fprintf (fout, "\t\ttitle:\t%s\n", quote (node->title));
   if (node->label != N_LABEL)
-    obstack_fgrow1 (os, "\t\tlabel:\t\"%s\"\n", node->label);
+    fprintf (fout, "\t\tlabel:\t%s\n", quote (node->label));
 
   if ((node->locx != N_LOCX) && (node->locy != N_LOCY))
-    obstack_fgrow2 (os, "\t\tloc { x: %d  y: %d }\t\n", node->locx, node->locy);
-  
+    fprintf (fout, "\t\tloc { x: %d  y: %d }\t\n", node->locx, node->locy);
+
   if (node->vertical_order != N_VERTICAL_ORDER)
-    obstack_fgrow1 (os, "\t\tvertical_order:\t%d\n", node->vertical_order);
+    fprintf (fout, "\t\tvertical_order:\t%d\n", node->vertical_order);
   if (node->horizontal_order != N_HORIZONTAL_ORDER)
-    obstack_fgrow1 (os, "\t\thorizontal_order:\t%d\n", node->horizontal_order);
-  
+    fprintf (fout, "\t\thorizontal_order:\t%d\n", node->horizontal_order);
+
   if (node->width != N_WIDTH)
-    obstack_fgrow1 (os, "\t\twidth:\t%d\n", node->width);
+    fprintf (fout, "\t\twidth:\t%d\n", node->width);
   if (node->height != N_HEIGHT)
-    obstack_fgrow1 (os, "\t\theight:\t%d\n", node->height);
-  
+    fprintf (fout, "\t\theight:\t%d\n", node->height);
+
   if (node->shrink != N_SHRINK)
-    obstack_fgrow1 (os, "\t\tshrink:\t%d\n", node->shrink);
+    fprintf (fout, "\t\tshrink:\t%d\n", node->shrink);
   if (node->stretch != N_STRETCH)
-    obstack_fgrow1 (os, "\t\tshrink:\t%d\n", node->shrink);
-  
+    fprintf (fout, "\t\tstretch:\t%d\n", node->stretch);
+
   if (node->folding != N_FOLDING)
-    obstack_fgrow1 (os, "\t\tfolding:\t%d\n", node->folding);  
-  
+    fprintf (fout, "\t\tfolding:\t%d\n", node->folding);
+
   if (node->textmode != N_TEXTMODE)
-    obstack_fgrow1 (os, "\t\ttextmode:\t%s\n", 
-                   get_textmode_str (node->textmode));
-  
+    fprintf (fout, "\t\ttextmode:\t%s\n",
+            get_textmode_str (node->textmode));
+
   if (node->shape != N_SHAPE)
-    obstack_fgrow1 (os, "\t\tshape:\t%s\n", get_shape_str (node->shape));
-  
+    fprintf (fout, "\t\tshape:\t%s\n", get_shape_str (node->shape));
+
   if (node->borderwidth != N_BORDERWIDTH)
-    obstack_fgrow1 (os, "\t\tborderwidth:\t%d\n", node->borderwidth);
-  
+    fprintf (fout, "\t\tborderwidth:\t%d\n", node->borderwidth);
+
   if (node->color != N_COLOR)
-    obstack_fgrow1 (os, "\t\tcolor:\t%s\n", get_color_str (node->color));
+    fprintf (fout, "\t\tcolor:\t%s\n", get_color_str (node->color));
   if (node->textcolor != N_TEXTCOLOR)
-    obstack_fgrow1 (os, "\t\ttextcolor:\t%s\n", 
-                   get_color_str (node->textcolor));
+    fprintf (fout, "\t\ttextcolor:\t%s\n",
+            get_color_str (node->textcolor));
   if (node->bordercolor != N_BORDERCOLOR)
-    obstack_fgrow1 (os, "\t\tbordercolor:\t%s\n", 
-                   get_color_str (node->bordercolor));
-  
-  if (node->infos[0])
-    obstack_fgrow1 (os, "\t\tinfo1:\t\"%s\"\n", node->infos[0]);
-  if (node->infos[1])
-    obstack_fgrow1 (os, "\t\tinfo2:\t\"%s\"\n", node->infos[1]);
-  if (node->infos[2])
-    obstack_fgrow1 (os, "\t\tinfo3:\t\"%s\"\n", node->infos[2]);
+    fprintf (fout, "\t\tbordercolor:\t%s\n",
+            get_color_str (node->bordercolor));
+
+  {
+    int i;
+    for (i = 0; i < 3; ++i)
+      if (node->infos[i])
+       fprintf (fout, "\t\tinfo%d:\t%s\n",
+                i, quote (node->infos[i]));
+  }
 }
 
 void
-output_edge (edge_t *edge, struct obstack *os)
+output_edge (edge_t *edge, FILE *fout)
 {
-
+  /* FIXME: SOURCENAME and TARGETNAME are mandatory
+     so it has to be fatal not to give these informations.  */
   if (edge->sourcename != E_SOURCENAME)
-    obstack_fgrow1 (os, "\t\tsourcename:\t\"%s\"\n", edge->sourcename);
+    fprintf (fout, "\t\tsourcename:\t%s\n", quote (edge->sourcename));
   if (edge->targetname != E_TARGETNAME)
-    obstack_fgrow1 (os, "\t\ttargetname:\t\"%s\"\n", edge->targetname);
-  
+    fprintf (fout, "\t\ttargetname:\t%s\n", quote (edge->targetname));
+
   if (edge->label != E_LABEL)
-    obstack_fgrow1 (os, "\t\tlabel:\t\"%s\"\n", edge->label);
+    fprintf (fout, "\t\tlabel:\t%s\n", quote (edge->label));
 
   if (edge->linestyle != E_LINESTYLE)
-    obstack_fgrow1 (os, "\t\tlinestyle:\t\"%s\"\n", 
-                   get_linestyle_str(edge->linestyle));
-  
+    fprintf (fout, "\t\tlinestyle:\t%s\n",
+            quote (get_linestyle_str(edge->linestyle)));
+
   if (edge->thickness != E_THICKNESS)
-    obstack_fgrow1 (os, "\t\tthickness:\t%d\n", edge->thickness);
+    fprintf (fout, "\t\tthickness:\t%d\n", edge->thickness);
   if (edge->class != E_CLASS)
-    obstack_fgrow1 (os, "\t\tclass:\t%d\n", edge->class);
+    fprintf (fout, "\t\tclass:\t%d\n", edge->class);
 
   if (edge->color != E_COLOR)
-    obstack_fgrow1 (os, "\t\tcolor:\t%s\n", get_color_str (edge->color));
+    fprintf (fout, "\t\tcolor:\t%s\n", get_color_str (edge->color));
   if (edge->color != E_TEXTCOLOR)
-    obstack_fgrow1 (os, "\t\ttextcolor:\t%s\n", 
-                   get_color_str (edge->textcolor));
+    fprintf (fout, "\t\ttextcolor:\t%s\n",
+            get_color_str (edge->textcolor));
   if (edge->arrowcolor != E_ARROWCOLOR)
-    obstack_fgrow1 (os, "\t\tarrowcolor:\t%s\n", 
-                   get_color_str (edge->arrowcolor));
+    fprintf (fout, "\t\tarrowcolor:\t%s\n",
+            get_color_str (edge->arrowcolor));
   if (edge->backarrowcolor != E_BACKARROWCOLOR)
-    obstack_fgrow1 (os, "\t\tbackarrowcolor:\t%s\n", 
-                   get_color_str (edge->backarrowcolor));
+    fprintf (fout, "\t\tbackarrowcolor:\t%s\n",
+            get_color_str (edge->backarrowcolor));
 
   if (edge->arrowsize != E_ARROWSIZE)
-    obstack_fgrow1 (os, "\t\tarrowsize:\t%d\n", edge->arrowsize);
+    fprintf (fout, "\t\tarrowsize:\t%d\n", edge->arrowsize);
   if (edge->backarrowsize != E_BACKARROWSIZE)
-    obstack_fgrow1 (os, "\t\tbackarrowsize:\t%d\n", edge->backarrowsize);
-  
+    fprintf (fout, "\t\tbackarrowsize:\t%d\n", edge->backarrowsize);
+
   if (edge->arrowstyle != E_ARROWSTYLE)
-    obstack_fgrow1 (os, "\t\tarrowstyle:\t%s\n", 
-                   get_arrowstyle_str(edge->arrowstyle));
+    fprintf (fout, "\t\tarrowstyle:\t%s\n",
+            get_arrowstyle_str(edge->arrowstyle));
   if (edge->backarrowstyle != E_BACKARROWSTYLE)
-    obstack_fgrow1 (os, "\t\tbackarrowstyle:\t%s\n", 
-                   get_arrowstyle_str(edge->backarrowstyle));
-  
+    fprintf (fout, "\t\tbackarrowstyle:\t%s\n",
+            get_arrowstyle_str(edge->backarrowstyle));
+
   if (edge->priority != E_PRIORITY)
-    obstack_fgrow1 (os, "\t\tpriority:\t%d\n", edge->priority);
+    fprintf (fout, "\t\tpriority:\t%d\n", edge->priority);
   if (edge->anchor != E_ANCHOR)
-    obstack_fgrow1 (os, "\t\tanchor:\t%d\n", edge->anchor);
+    fprintf (fout, "\t\tanchor:\t%d\n", edge->anchor);
   if (edge->horizontal_order != E_HORIZONTAL_ORDER)
-    obstack_fgrow1 (os, "\t\thorizontal_order:\t%d\n", edge->horizontal_order);
+    fprintf (fout, "\t\thorizontal_order:\t%d\n", edge->horizontal_order);
 }
 
 void
-output_graph (graph_t *graph, struct obstack *os)
+output_graph (graph_t *graph, FILE *fout)
 {
   if (graph->title)
-    obstack_fgrow1 (os, "\ttitle:\t\"%s\"\n", graph->title);
+    fprintf (fout, "\ttitle:\t%s\n", quote (graph->title));
   if (graph->label)
-    obstack_fgrow1 (os, "\tlabel:\t\"%s\"\n", graph->label);
-  
-  if (graph->infos[0])
-    obstack_fgrow1 (os, "\tinfo1:\t\"%s\"\n", graph->infos[0]);
-  if (graph->infos[1])
-    obstack_fgrow1 (os, "\tinfo2:\t\"%s\"\n", graph->infos[1]);
-  if (graph->infos[2])
-    obstack_fgrow1 (os, "\tinfo3:\t\"%s\"\n", graph->infos[2]);
-  
+    fprintf (fout, "\tlabel:\t%s\n", quote (graph->label));
+
+  {
+    int i;
+    for (i = 0; i < 3; ++i)
+      if (graph->infos[i])
+       fprintf (fout, "\tinfo%d:\t%s\n", i, quote (graph->infos[i]));
+  }
+
   if (graph->color != G_COLOR)
-    obstack_fgrow1 (os, "\tcolor:\t%s\n", get_color_str (graph->color));
+    fprintf (fout, "\tcolor:\t%s\n", get_color_str (graph->color));
   if (graph->textcolor != G_TEXTCOLOR)
-    obstack_fgrow1 (os, "\ttextcolor:\t%s\n", get_color_str (graph->textcolor));
+    fprintf (fout, "\ttextcolor:\t%s\n", get_color_str (graph->textcolor));
   if (graph->bordercolor != G_BORDERCOLOR)
-    obstack_fgrow1 (os, "\tbordercolor:\t%s\n", 
-                   get_color_str (graph->bordercolor));
-    
+    fprintf (fout, "\tbordercolor:\t%s\n",
+            get_color_str (graph->bordercolor));
+
   if (graph->width != G_WIDTH)
-    obstack_fgrow1 (os, "\twidth:\t%d\n", graph->width);
+    fprintf (fout, "\twidth:\t%d\n", graph->width);
   if (graph->height != G_HEIGHT)
-    obstack_fgrow1 (os, "\theight:\t%d\n", graph->height);
+    fprintf (fout, "\theight:\t%d\n", graph->height);
   if (graph->borderwidth != G_BORDERWIDTH)
-    obstack_fgrow1 (os, "\tborderwidth:\t%d\n", graph->borderwidth);
-  
+    fprintf (fout, "\tborderwidth:\t%d\n", graph->borderwidth);
+
   if (graph->x != G_X)
-    obstack_fgrow1 (os, "\tx:\t%d\n", graph->x);
+    fprintf (fout, "\tx:\t%d\n", graph->x);
   if (graph->y != G_Y)
-    obstack_fgrow1 (os, "\ty:\t%d\n", graph->y);
+    fprintf (fout, "\ty:\t%d\n", graph->y);
 
   if (graph->folding != G_FOLDING)
-    obstack_fgrow1 (os, "\tfolding:\t%d\n", graph->folding);
+    fprintf (fout, "\tfolding:\t%d\n", graph->folding);
 
   if (graph->shrink != G_SHRINK)
-    obstack_fgrow1 (os, "\tshrink:\t%d\n", graph->shrink);
+    fprintf (fout, "\tshrink:\t%d\n", graph->shrink);
   if (graph->stretch != G_STRETCH)
-    obstack_fgrow1 (os, "\tstretch:\t%d\n", graph->stretch);
+    fprintf (fout, "\tstretch:\t%d\n", graph->stretch);
+
   if (graph->textmode != G_TEXTMODE)
-    obstack_fgrow1 (os, "\ttextmode:\t%s\n", 
-                   get_textmode_str (graph->textmode));
+    fprintf (fout, "\ttextmode:\t%s\n",
+            get_textmode_str (graph->textmode));
+
   if (graph->shape != G_SHAPE)
-    obstack_fgrow1 (os, "\tshape:\t%s\n", get_shape_str (graph->shape));
-  
+    fprintf (fout, "\tshape:\t%s\n", get_shape_str (graph->shape));
+
+  if (graph->vertical_order != G_VERTICAL_ORDER)
+    fprintf (fout, "\tvertical_order:\t%d\n", graph->vertical_order);
+  if (graph->horizontal_order != G_HORIZONTAL_ORDER)
+    fprintf (fout, "\thorizontal_order:\t%d\n", graph->horizontal_order);
+
   if (graph->xmax != G_XMAX)
-    obstack_fgrow1 (os, "\txmax:\t%d\n", graph->xmax);
+    fprintf (fout, "\txmax:\t%d\n", graph->xmax);
   if (graph->ymax != G_YMAX)
-    obstack_fgrow1 (os, "\tymax:\t%d\n", graph->ymax);
-  
+    fprintf (fout, "\tymax:\t%d\n", graph->ymax);
+
   if (graph->xbase != G_XBASE)
-    obstack_fgrow1 (os, "\txbase:\t%d\n", graph->xbase);
+    fprintf (fout, "\txbase:\t%d\n", graph->xbase);
   if (graph->ybase != G_YBASE)
-    obstack_fgrow1 (os, "\tybase:\t%d\n", graph->ybase);
+    fprintf (fout, "\tybase:\t%d\n", graph->ybase);
 
   if (graph->xspace != G_XSPACE)
-    obstack_fgrow1 (os, "\txspace:\t%d\n", graph->xspace);
+    fprintf (fout, "\txspace:\t%d\n", graph->xspace);
   if (graph->yspace != G_YSPACE)
-    obstack_fgrow1 (os, "\tyspace:\t%d\n", graph->yspace);
+    fprintf (fout, "\tyspace:\t%d\n", graph->yspace);
   if (graph->xlspace != G_XLSPACE)
-    obstack_fgrow1 (os, "\txlspace:\t%d\n", graph->xlspace);
-  
+    fprintf (fout, "\txlspace:\t%d\n", graph->xlspace);
+
   if (graph->xraster != G_XRASTER)
-    obstack_fgrow1 (os, "\txraster:\t%d\n", graph->xraster);
+    fprintf (fout, "\txraster:\t%d\n", graph->xraster);
   if (graph->yraster != G_YRASTER)
-    obstack_fgrow1 (os, "\tyraster:\t%d\n", graph->yraster);
+    fprintf (fout, "\tyraster:\t%d\n", graph->yraster);
   if (graph->xlraster != G_XLRASTER)
-    obstack_fgrow1 (os, "\txlraster:\t%d\n", graph->xlraster);
+    fprintf (fout, "\txlraster:\t%d\n", graph->xlraster);
 
   if (graph->hidden != G_HIDDEN)
-    obstack_fgrow1 (os, "\thidden:\t%d\n", graph->hidden);
-  
+    fprintf (fout, "\thidden:\t%d\n", graph->hidden);
+
+  /* FIXME: Unallocate struct list if required.
+     Maybe with a little function.  */
   if (graph->classname != G_CLASSNAME)
     {
       struct classname_s *ite;
-      
+
       for (ite = graph->classname; ite; ite = ite->next)
-       obstack_fgrow2 (os, "\tclassname %d :\t%s\n", ite->no, ite->name);
+       fprintf (fout, "\tclassname %d :\t%s\n", ite->no, ite->name);
+    }
+
+  if (graph->infoname != G_INFONAME)
+    {
+      struct infoname_s *ite;
+
+      for (ite = graph->infoname; ite; ite = ite->next)
+       fprintf (fout, "\tinfoname %d :\t%s\n", ite->integer, ite->string);
+    }
+
+  if (graph->colorentry != G_COLORENTRY)
+    {
+      struct colorentry_s *ite;
+
+      for (ite = graph->colorentry; ite; ite = ite->next)
+       {
+         fprintf (fout, "\tcolorentry %d :\t%d %d %d\n",
+                  ite->color_index,
+                  ite->red_cp,
+                  ite->green_cp,
+                  ite->blue_cp);
+       }
     }
-  
+
   if (graph->layoutalgorithm != G_LAYOUTALGORITHM)
-    obstack_fgrow1 (os, "\tlayoutalgorithm:\t%s\n", 
-                   get_layoutalgorithm_str(graph->layoutalgorithm));
-  
+    fprintf (fout, "\tlayoutalgorithm:\t%s\n",
+            get_layoutalgorithm_str(graph->layoutalgorithm));
+
   if (graph->layout_downfactor != G_LAYOUT_DOWNFACTOR)
-    obstack_fgrow1 (os, "\tlayout_downfactor:\t%d\n", graph->layout_downfactor);
+    fprintf (fout, "\tlayout_downfactor:\t%d\n", graph->layout_downfactor);
   if (graph->layout_upfactor != G_LAYOUT_UPFACTOR)
-    obstack_fgrow1 (os, "\tlayout_upfactor:\t%d\n", graph->layout_upfactor);  
+    fprintf (fout, "\tlayout_upfactor:\t%d\n", graph->layout_upfactor);
   if (graph->layout_nearfactor != G_LAYOUT_NEARFACTOR)
-    obstack_fgrow1 (os, "\tlayout_nearfactor:\t%d\n", graph->layout_nearfactor);
+    fprintf (fout, "\tlayout_nearfactor:\t%d\n", graph->layout_nearfactor);
   if (graph->layout_splinefactor != G_LAYOUT_SPLINEFACTOR)
-    obstack_fgrow1 (os, "\tlayout_splinefactor:\t%d\n", 
-                   graph->layout_splinefactor);
-  
+    fprintf (fout, "\tlayout_splinefactor:\t%d\n",
+            graph->layout_splinefactor);
+
   if (graph->late_edge_labels != G_LATE_EDGE_LABELS)
-    obstack_fgrow1 (os, "\tlate_edge_labels:\t%s\n", 
-                   get_decision_str(graph->late_edge_labels, 
-                                    G_LATE_EDGE_LABELS));
+    fprintf (fout, "\tlate_edge_labels:\t%s\n",
+            get_decision_str(graph->late_edge_labels));
   if (graph->display_edge_labels != G_DISPLAY_EDGE_LABELS)
-    obstack_fgrow1 (os, "\tdisplay_edge_labels:\t%s\n", 
-                   get_decision_str(graph->display_edge_labels, 
-                                    G_DISPLAY_EDGE_LABELS));
+    fprintf (fout, "\tdisplay_edge_labels:\t%s\n",
+            get_decision_str(graph->display_edge_labels));
   if (graph->dirty_edge_labels != G_DIRTY_EDGE_LABELS)
-    obstack_fgrow1 (os, "\tdirty_edge_labels:\t%s\n", 
-                   get_decision_str(graph->dirty_edge_labels, 
-                                    G_DIRTY_EDGE_LABELS));
+    fprintf (fout, "\tdirty_edge_labels:\t%s\n",
+            get_decision_str(graph->dirty_edge_labels));
   if (graph->finetuning != G_FINETUNING)
-    obstack_fgrow1 (os, "\tfinetuning:\t%s\n", 
-                   get_decision_str(graph->finetuning, G_FINETUNING));
+    fprintf (fout, "\tfinetuning:\t%s\n",
+            get_decision_str(graph->finetuning));
   if (graph->ignore_singles != G_IGNORE_SINGLES)
-    obstack_fgrow1 (os, "\tignore_singles:\t%s\n", 
-                   get_decision_str(graph->ignore_singles, G_IGNORE_SINGLES));
+    fprintf (fout, "\tignore_singles:\t%s\n",
+            get_decision_str(graph->ignore_singles));
   if (graph->straight_phase != G_STRAIGHT_PHASE)
-    obstack_fgrow1 (os, "\tstraight_phase:\t%s\n", 
-                   get_decision_str(graph->straight_phase, G_STRAIGHT_PHASE));
+    fprintf (fout, "\tstraight_phase:\t%s\n",
+            get_decision_str(graph->straight_phase));
   if (graph->priority_phase != G_PRIORITY_PHASE)
-    obstack_fgrow1 (os, "\tpriority_phase:\t%s\n", 
-                   get_decision_str(graph->priority_phase, G_PRIORITY_PHASE));
+    fprintf (fout, "\tpriority_phase:\t%s\n",
+            get_decision_str(graph->priority_phase));
   if (graph->manhattan_edges != G_MANHATTAN_EDGES)
-    obstack_fgrow1 (os, 
-                   "\tmanhattan_edges:\t%s\n", 
-                   get_decision_str(graph->manhattan_edges, 
-                                    G_MANHATTAN_EDGES));
+    fprintf (fout,
+            "\tmanhattan_edges:\t%s\n",
+            get_decision_str(graph->manhattan_edges));
   if (graph->smanhattan_edges != G_SMANHATTAN_EDGES)
-    obstack_fgrow1 (os, 
-                   "\tsmanhattan_edges:\t%s\n", 
-                   get_decision_str(graph->smanhattan_edges, 
-                                    G_SMANHATTAN_EDGES));
+    fprintf (fout,
+            "\tsmanhattan_edges:\t%s\n",
+            get_decision_str(graph->smanhattan_edges));
   if (graph->near_edges != G_NEAR_EDGES)
-    obstack_fgrow1 (os, "\tnear_edges:\t%s\n", 
-                   get_decision_str(graph->near_edges, G_NEAR_EDGES));
-  
+    fprintf (fout, "\tnear_edges:\t%s\n",
+            get_decision_str(graph->near_edges));
+
   if (graph->orientation != G_ORIENTATION)
-    obstack_fgrow1 (os, "\torientation:\t%s\n", 
-                   get_decision_str(graph->orientation, G_ORIENTATION));
-  
+    fprintf (fout, "\torientation:\t%s\n",
+            get_orientation_str(graph->orientation));
+
   if (graph->node_alignement != G_NODE_ALIGNEMENT)
-    obstack_fgrow1 (os, "\tnode_alignement:\t%s\n", 
-                   get_decision_str(graph->node_alignement, 
-                                    G_NODE_ALIGNEMENT));
-  
+    fprintf (fout, "\tnode_alignement:\t%s\n",
+            get_node_alignement_str(graph->node_alignement));
+
   if (graph->port_sharing != G_PORT_SHARING)
-    obstack_fgrow1 (os, "\tport_sharing:\t%s\n", 
-                   get_decision_str(graph->port_sharing, G_PORT_SHARING));
-  
+    fprintf (fout, "\tport_sharing:\t%s\n",
+            get_decision_str(graph->port_sharing));
+
   if (graph->arrow_mode != G_ARROW_MODE)
-    obstack_fgrow1 (os, "\tarrow_mode:\t%s\n", 
-                   get_arrow_mode_str(graph->arrow_mode));
-  
+    fprintf (fout, "\tarrow_mode:\t%s\n",
+            get_arrow_mode_str(graph->arrow_mode));
+
   if (graph->treefactor != G_TREEFACTOR)
-    obstack_fgrow1 (os, "\ttreefactor:\t%f\n", graph->treefactor);
+    fprintf (fout, "\ttreefactor:\t%f\n", graph->treefactor);
   if (graph->spreadlevel != G_SPREADLEVEL)
-    obstack_fgrow1 (os, "\tspreadlevel:\t%d\n", graph->spreadlevel);
-  
+    fprintf (fout, "\tspreadlevel:\t%d\n", graph->spreadlevel);
+
   if (graph->crossing_weight != G_CROSSING_WEIGHT)
-    obstack_fgrow1 (os, "\tcrossing_weight:\t%s\n", 
-                   get_crossing_type_str(graph->crossing_weight));
+    fprintf (fout, "\tcrossing_weight:\t%s\n",
+            get_crossing_type_str(graph->crossing_weight));
   if (graph->crossing_phase2 != G_CROSSING_PHASE2)
-    obstack_fgrow1 (os, "\tcrossing_phase2:\t%s\n", 
-                   get_decision_str(graph->crossing_phase2, 
-                                    G_CROSSING_PHASE2));
+    fprintf (fout, "\tcrossing_phase2:\t%s\n",
+            get_decision_str(graph->crossing_phase2));
   if (graph->crossing_optimization != G_CROSSING_OPTIMIZATION)
-    obstack_fgrow1 (os, "\tcrossing_optimization:\t%s\n", 
-                   get_decision_str(graph->crossing_optimization, 
-                                    G_CROSSING_OPTIMIZATION));
-  
+    fprintf (fout, "\tcrossing_optimization:\t%s\n",
+            get_decision_str(graph->crossing_optimization));
+
   if (graph->view != G_VIEW)
-    obstack_fgrow1 (os, "\tview:\t%s\n", get_view_str(graph->view));
-  
+    fprintf (fout, "\tview:\t%s\n", get_view_str(graph->view));
+
   if (graph->edges != G_EDGES)
-    obstack_fgrow1 (os, "\tedges:\t%s\n", get_decision_str(graph->edges, 
-                                                          G_EDGES));  
-  
+    fprintf (fout, "\tedges:\t%s\n", get_decision_str(graph->edges));
+
   if (graph->nodes != G_NODES)
-    obstack_fgrow1 (os,"\tnodes:\t%s\n", 
-                   get_decision_str(graph->nodes, G_NODES));  
-  
+    fprintf (fout,"\tnodes:\t%s\n", get_decision_str(graph->nodes));
+
   if (graph->splines != G_SPLINES)
-    obstack_fgrow1 (os, "\tsplines:\t%s\n", 
-                   get_decision_str(graph->splines, G_SPLINES));
-  
+    fprintf (fout, "\tsplines:\t%s\n", get_decision_str(graph->splines));
+
   if (graph->bmax != G_BMAX)
-    obstack_fgrow1 (os, "\tbmax:\t%d\n", graph->bmax);    
+    fprintf (fout, "\tbmax:\t%d\n", graph->bmax);
   if (graph->cmin != G_CMIN)
-    obstack_fgrow1 (os, "\tcmin:\t%d\n", graph->cmin);    
+    fprintf (fout, "\tcmin:\t%d\n", graph->cmin);
   if (graph->cmax != G_CMAX)
-    obstack_fgrow1 (os, "\tcmax:\t%d\n", graph->cmax);    
+    fprintf (fout, "\tcmax:\t%d\n", graph->cmax);
   if (graph->pmin != G_PMIN)
-    obstack_fgrow1 (os, "\tpmin:\t%d\n", graph->pmin);    
+    fprintf (fout, "\tpmin:\t%d\n", graph->pmin);
   if (graph->pmax != G_PMAX)
-    obstack_fgrow1 (os, "\tpmax:\t%d\n", graph->pmax);    
+    fprintf (fout, "\tpmax:\t%d\n", graph->pmax);
   if (graph->rmin != G_RMIN)
-    obstack_fgrow1 (os, "\trmin:\t%d\n", graph->rmin);    
+    fprintf (fout, "\trmin:\t%d\n", graph->rmin);
   if (graph->rmax != G_RMAX)
-    obstack_fgrow1 (os, "\trmax:\t%d\n", graph->rmax);    
+    fprintf (fout, "\trmax:\t%d\n", graph->rmax);
   if (graph->smax != G_SMAX)
-    obstack_fgrow1 (os, "\tsmax:\t%d\n", graph->smax);    
-}
-
-#ifdef NDEBUG
-
-int main ()
-{
-  graph_t graph;
-  node_t *node;
-  edge_t *edge;
-  struct obstack graph_obstack;
-  
-  obstack_init (&graph_obstack);
-
-  new_graph(&graph);
-    
-  graph.title = "graph_title";
-  graph.label = "graph_label";
-  graph.color = yellow;
-  graph.textcolor = green;
-  graph.width = 5;
-  graph.x = 12;
-  graph.y = 17;
-  graph.textmode = right_justify;
-  
-  open_graph (&graph, stdout);
-  
-  node = XMALLOC (node_t, 1);
-  new_node (node);
-  node->title = "A";
-  node->locx = 12;
-  node->locy = 71;
-  add_node (&graph, node);
-
-  node = XMALLOC (node_t, 1);
-  new_node (node);
-  node->title = "B";
-  add_node (&graph, node);
-
-  edge = XMALLOC (edge_t, 1);
-  new_edge (edge);
-  edge->sourcename = "B";
-  edge->targetname = "A";
-  add_edge (&graph, edge);
-
-  output_graph(&graph, stdout);
-  close_graph (&graph, stdout);
-  
-  obstack_save (&graph_obstack, "essai.vcg");
-  
-  return (0);
+    fprintf (fout, "\tsmax:\t%d\n", graph->smax);
 }
-
-#endif /* not DEBUG */