src/vcg.c

   1 /* VCG description handler for Bison.
   2
   3    Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
   4
   5    This file is part of Bison, the GNU Compiler Compiler.
   6
   7    Bison is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2, or (at your option)
  10    any later version.
  11
  12    Bison is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with Bison; see the file COPYING.  If not, write to
  19    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #include "system.h"
  23
  24 #include <quotearg.h>
  25
  26 #include "vcg.h"
  27 #include "vcg_defaults.h"
  28
  29 /* Return an unambiguous printable representated, for NAME, suitable
  30    for C strings.  Use slot 2 since the user may use slots 0 and 1.
  31    */
  32
  33 static char const *
  34 quote (char const *name)
  35 {
  36   return quotearg_n_style (2, c_quoting_style, name);
  37 }
  38
  39
  40 /* Initialize a graph with the default values. */
  41 void
  42 new_graph (graph *g)
  43 {
  44   g->title = G_TITLE;
  45   g->label = G_LABEL;
  46
  47   g->infos[0] = G_INFOS1;
  48   g->infos[1] = G_INFOS2;
  49   g->infos[2] = G_INFOS3;
  50
  51   g->color = G_COLOR;
  52   g->textcolor = G_TEXTCOLOR;
  53   g->bordercolor = G_BORDERCOLOR;
  54
  55   g->width = G_WIDTH;
  56   g->height = G_HEIGHT;
  57   g->borderwidth = G_BORDERWIDTH;
  58   g->x = G_X;
  59   g->y = G_Y;
  60   g->folding = G_FOLDING;
  61   g->shrink = G_SHRINK;
  62   g->stretch = G_STRETCH;
  63
  64   g->textmode = G_TEXTMODE;
  65   g->shape = G_SHAPE;
  66
  67   g->vertical_order = G_VERTICAL_ORDER;
  68   g->horizontal_order = G_HORIZONTAL_ORDER;
  69
  70   g->xmax = G_XMAX; /* Not output. */
  71   g->ymax = G_YMAX; /* Not output. */
  72
  73   g->xbase = G_XBASE;
  74   g->ybase = G_YBASE;
  75
  76   g->xspace = G_XSPACE;
  77   g->yspace = G_YSPACE;
  78   g->xlspace = G_XLSPACE; /* Not output. */
  79
  80   g->xraster = G_XRASTER;
  81   g->yraster = G_YRASTER;
  82   g->xlraster = G_XLRASTER;
  83
  84   g->hidden = G_HIDDEN; /* No default value. */
  85
  86   g->classname = G_CLASSNAME; /* No class name association. */
  87
  88   g->layout_downfactor = G_LAYOUT_DOWNFACTOR;
  89   g->layout_upfactor = G_LAYOUT_UPFACTOR;
  90   g->layout_nearfactor = G_LAYOUT_NEARFACTOR;
  91   g->layout_splinefactor = G_LAYOUT_SPLINEFACTOR;
  92
  93   g->late_edge_labels = G_LATE_EDGE_LABELS;
  94   g->display_edge_labels = G_DISPLAY_EDGE_LABELS;
  95   g->dirty_edge_labels = G_DIRTY_EDGE_LABELS;
  96   g->finetuning = G_FINETUNING;
  97   g->ignore_singles = G_IGNORE_SINGLES;
  98   g->priority_phase = G_PRIORITY_PHASE;
  99   g->manhattan_edges = G_MANHATTAN_EDGES;
 100   g->smanhattan_edges = G_SMANHATTAN_EDGES;
 101   g->near_edges = G_NEAR_EDGES;
 102
 103   g->orientation = G_ORIENTATION;
 104   g->node_alignment = G_NODE_ALIGNMENT;
 105   g->port_sharing = G_PORT_SHARING;
 106   g->arrow_mode = G_ARROW_MODE;
 107   g->treefactor = G_TREEFACTOR;
 108   g->spreadlevel = G_SPREADLEVEL;
 109   g->crossing_weight = G_CROSSING_WEIGHT;
 110   g->crossing_phase2 = G_CROSSING_PHASE2;
 111   g->crossing_optimization = G_CROSSING_OPTIMIZATION;
 112   g->view = G_VIEW;
 113
 114   g->edges = G_EDGES;
 115   g->nodes = G_NODES;
 116   g->splines = G_SPLINES;
 117
 118   g->bmax = G_BMAX;
 119   g->cmin = G_CMIN;
 120   g->cmax = G_CMAX;
 121   g->pmin = G_PMIN;
 122   g->pmax = G_PMAX;
 123   g->rmin = G_RMIN;
 124   g->rmax = G_RMAX;
 125   g->smax = G_SMAX;
 126
 127   g->node_list = G_NODE_LIST;
 128   g->edge_list = G_EDGE_LIST;
 129
 130   new_edge (&g->edge);
 131   new_node (&g->node);
 132 }
 133
 134 /* Initialize a node with the default values. */
 135 void
 136 new_node (node *n)
 137 {
 138   n->title = N_TITLE;
 139   n->label = N_LABEL;
 140
 141   n->locx = N_LOCX; /* Default unspcified. */
 142   n->locy = N_LOCY; /* Default unspcified. */
 143
 144   n->vertical_order = N_VERTICAL_ORDER; /* Default unspcified. */
 145   n->horizontal_order = N_HORIZONTAL_ORDER;     /* Default unspcified. */
 146
 147   n->width = N_WIDTH; /* We assume that we can't define it now. */
 148   n->height = N_HEIGHT; /* Also. */
 149
 150   n->shrink = N_SHRINK;
 151   n->stretch = N_STRETCH;
 152
 153   n->folding = N_FOLDING; /* No explicit default value. */
 154
 155   n->shape = N_SHAPE;
 156   n->textmode = N_TEXTMODE;
 157   n->borderwidth = N_BORDERWIDTH;
 158
 159   n->color = N_COLOR;
 160   n->textcolor = N_TEXTCOLOR;
 161   n->bordercolor = N_BORDERCOLOR;
 162
 163   n->infos[0] = N_INFOS1;
 164   n->infos[1] = N_INFOS2;
 165   n->infos[2] = N_INFOS3;
 166
 167   n->next = N_NEXT;
 168 }
 169
 170 /* Initialize an edge with the default values. */
 171 void
 172 new_edge (edge *e)
 173 {
 174   e->type = E_EDGE_TYPE;
 175
 176   e->sourcename = E_SOURCENAME;
 177   e->targetname = E_TARGETNAME;
 178   e->label = E_LABEL;
 179
 180   e->linestyle = E_LINESTYLE;
 181   e->thickness = E_THICKNESS;
 182
 183   e->class = E_CLASS;
 184
 185   e->color = E_COLOR;
 186   e->textcolor = E_TEXTCOLOR;
 187   e->arrowcolor = E_ARROWCOLOR;
 188   e->backarrowcolor = E_BACKARROWCOLOR;
 189
 190   e->arrowsize = E_ARROWSIZE;
 191   e->backarrowsize = E_BACKARROWSIZE;
 192   e->arrowstyle = E_ARROWSTYLE;
 193
 194   e->backarrowstyle = E_BACKARROWSTYLE;
 195
 196   e->priority = E_PRIORITY;
 197
 198   e->anchor = E_ANCHOR;
 199
 200   e->horizontal_order = E_HORIZONTAL_ORDER;
 201
 202   e->next = E_NEXT;
 203 }
 204
 205 /*----------------------------------------------.
 206 | Get functions.                                |
 207 | Return string corresponding to an enum value. |
 208 `----------------------------------------------*/
 209
 210 static const char *
 211 get_color_str (enum color color)
 212 {
 213   switch (color)
 214     {
 215     case white:         return "white";
 216     case blue:          return "blue";
 217     case red:           return "red";
 218     case green:         return "green";
 219     case yellow:        return "yellow";
 220     case magenta:       return "magenta";
 221     case cyan:          return "cyan";
 222     case darkgrey:      return "darkgrey";
 223     case darkblue:      return "darkblue";
 224     case darkred:       return "darkred";
 225     case darkgreen:     return "darkgreen";
 226     case darkyellow:    return "darkyellow";
 227     case darkmagenta:   return "darkmagenta";
 228     case darkcyan:      return "darkcyan";
 229     case gold:          return "gold";
 230     case lightgrey:     return "lightgrey";
 231     case lightblue:     return "lightblue";
 232     case lightred:      return "lightred";
 233     case lightgreen:    return "lightgreen";
 234     case lightyellow:   return "lightyellow";
 235     case lightmagenta:  return "lightmagenta";
 236     case lightcyan:     return "lightcyan";
 237     case lilac:         return "lilac";
 238     case turquoise:     return "turquoise";
 239     case aquamarine:    return "aquamarine";
 240     case khaki:         return "khaki";
 241     case purple:        return "purple";
 242     case yellowgreen:   return "yellowgreen";
 243     case pink:          return "pink";
 244     case orange:        return "orange";
 245     case orchid:        return "orchid";
 246     case black:         return "black";
 247     default:            abort (); return NULL;
 248     }
 249 }
 250
 251 static const char *
 252 get_textmode_str (enum textmode textmode)
 253 {
 254   switch (textmode)
 255     {
 256     case centered:      return "center";
 257     case left_justify:  return "left_justify";
 258     case right_justify: return "right_justify";
 259     default:            abort (); return NULL;
 260     }
 261 }
 262
 263 static const char *
 264 get_shape_str (enum shape shape)
 265 {
 266   switch (shape)
 267     {
 268     case box:           return "box";
 269     case rhomb:         return "rhomb";
 270     case ellipse:       return "ellipse";
 271     case triangle:      return "triangle";
 272     default:            abort (); return NULL;
 273     }
 274 }
 275
 276 static const char *
 277 get_decision_str (enum decision decision)
 278 {
 279   switch (decision)
 280     {
 281     case no:    return "no";
 282     case yes:   return "yes";
 283     default:    abort (); return NULL;
 284     }
 285 }
 286
 287 static const char *
 288 get_orientation_str (enum orientation orientation)
 289 {
 290   switch (orientation)
 291     {
 292     case top_to_bottom: return "top_to_bottom";
 293     case bottom_to_top: return "bottom_to_top";
 294     case left_to_right: return "left_to_right";
 295     case right_to_left: return "right_to_left";
 296     default:            abort (); return NULL;
 297     }
 298 }
 299
 300 static const char *
 301 get_node_alignment_str (enum alignment alignment)
 302 {
 303   switch (alignment)
 304     {
 305     case center:        return "center";
 306     case top:           return "top";
 307     case bottom:        return "bottom";
 308     default:            abort (); return NULL;
 309     }
 310 }
 311
 312 static const char *
 313 get_arrow_mode_str (enum arrow_mode arrow_mode)
 314 {
 315   switch (arrow_mode)
 316     {
 317     case fixed:         return "fixed";
 318     case free_a:        return "free";
 319     default:            abort (); return NULL;
 320     }
 321 }
 322
 323 static const char *
 324 get_crossing_type_str (enum crossing_type crossing_type)
 325 {
 326   switch (crossing_type)
 327     {
 328     case bary:          return "bary";
 329     case median:        return "median";
 330     case barymedian:    return "barymedian";
 331     case medianbary:    return "medianbary";
 332     default:            abort (); return NULL;
 333     }
 334 }
 335
 336 static const char *
 337 get_view_str (enum view view)
 338 {
 339   switch (view)
 340     {
 341     case normal_view:   return "normal_view";
 342     case cfish:         return "cfish";
 343     case pfish:         return "pfish";
 344     case fcfish:        return "fcfish";
 345     case fpfish:        return "fpfish";
 346     default:            abort (); return NULL;
 347     }
 348 }
 349
 350 static const char *
 351 get_linestyle_str (enum linestyle linestyle)
 352 {
 353   switch (linestyle)
 354     {
 355     case continuous:    return "continuous";
 356     case dashed:        return "dashed";
 357     case dotted:        return "dotted";
 358     case invisible:     return "invisible";
 359     default:            abort (); return NULL;
 360     }
 361 }
 362
 363 static const char *
 364 get_arrowstyle_str (enum arrowstyle arrowstyle)
 365 {
 366   switch (arrowstyle)
 367     {
 368     case solid: return "solid";
 369     case line:  return "line";
 370     case none:  return "none";
 371     default:    abort (); return NULL;
 372     }
 373 }
 374
 375 /*------------------------------.
 376 | Add functions.                |
 377 | Edge and nodes into a graph.  |
 378 `------------------------------*/
 379
 380 void
 381 add_node (graph *g, node *n)
 382 {
 383   n->next = g->node_list;
 384   g->node_list = n;
 385 }
 386
 387 void
 388 add_edge (graph *g, edge *e)
 389 {
 390   e->next = g->edge_list;
 391   g->edge_list = e;
 392 }
 393
 394 void
 395 add_classname (graph *g, int val, const char *name)
 396 {
 397   struct classname *classname = xmalloc (sizeof *classname);
 398   classname->no = val;
 399   classname->name = name;
 400   classname->next = g->classname;
 401   g->classname = classname;
 402 }
 403
 404 void
 405 add_infoname (graph *g, int integer, const char *str)
 406 {
 407   struct infoname *infoname = xmalloc (sizeof *infoname);
 408   infoname->integer = integer;
 409   infoname->chars = str;
 410   infoname->next = g->infoname;
 411   g->infoname = infoname;
 412 }
 413
 414 /* Build a colorentry struct and add it to the list.  */
 415 void
 416 add_colorentry (graph *g, int color_idx, int red_cp,
 417                 int green_cp, int blue_cp)
 418 {
 419   struct colorentry *ce = xmalloc (sizeof *ce);
 420   ce->color_index = color_idx;
 421   ce->red_cp = red_cp;
 422   ce->green_cp = green_cp;
 423   ce->blue_cp = blue_cp;
 424   ce->next = g->colorentry;
 425   g->colorentry = ce;
 426 }
 427
 428 /*-------------------------------------.
 429 | Open and close functions (formatted) |
 430 `-------------------------------------*/
 431
 432 void
 433 open_edge (edge *e, FILE *fout)
 434 {
 435   switch (e->type)
 436     {
 437     case normal_edge:
 438       fputs ("\tedge: {\n", fout);
 439       break;
 440     case back_edge:
 441       fputs ("\tbackedge: {\n", fout);
 442       break;
 443     case near_edge:
 444       fputs ("\tnearedge: {\n", fout);
 445       break;
 446     case bent_near_edge:
 447       fputs ("\tbentnearedge: {\n", fout);
 448       break;
 449     default:
 450       fputs ("\tedge: {\n", fout);
 451     }
 452 }
 453
 454 void
 455 close_edge (FILE *fout)
 456 {
 457   fputs ("\t}\n", fout);
 458 }
 459
 460 void
 461 open_node (FILE *fout)
 462 {
 463   fputs ("\tnode: {\n", fout);
 464 }
 465
 466 void
 467 close_node (FILE *fout)
 468 {
 469   fputs ("\t}\n", fout);
 470 }
 471
 472 void
 473 open_graph (FILE *fout)
 474 {
 475   fputs ("graph: {\n", fout);
 476 }
 477
 478 void
 479 close_graph (graph *g, FILE *fout)
 480 {
 481   fputc ('\n', fout);
 482
 483   /* FIXME: Unallocate nodes and edges if required.  */
 484   {
 485     node *n;
 486
 487     for (n = g->node_list; n; n = n->next)
 488       {
 489         open_node (fout);
 490         output_node (n, fout);
 491         close_node (fout);
 492       }
 493   }
 494
 495   fputc ('\n', fout);
 496
 497   {
 498     edge *e;
 499
 500     for (e = g->edge_list; e; e = e->next)
 501       {
 502         open_edge (e, fout);
 503         output_edge (e, fout);
 504         close_edge (fout);
 505       }
 506   }
 507
 508   fputs ("}\n", fout);
 509 }
 510
 511 /*-------------------------------------------.
 512 | Output functions (formatted) in file FOUT  |
 513 `-------------------------------------------*/
 514
 515 void
 516 output_node (node *n, FILE *fout)
 517 {
 518   if (n->title != N_TITLE)
 519     fprintf (fout, "\t\ttitle:\t%s\n", quote (n->title));
 520   if (n->label != N_LABEL)
 521     fprintf (fout, "\t\tlabel:\t%s\n", quote (n->label));
 522
 523   if ((n->locx != N_LOCX) && (n->locy != N_LOCY))
 524     fprintf (fout, "\t\tloc { x: %d  y: %d }\t\n", n->locx, n->locy);
 525
 526   if (n->vertical_order != N_VERTICAL_ORDER)
 527     fprintf (fout, "\t\tvertical_order:\t%d\n", n->vertical_order);
 528   if (n->horizontal_order != N_HORIZONTAL_ORDER)
 529     fprintf (fout, "\t\thorizontal_order:\t%d\n", n->horizontal_order);
 530
 531   if (n->width != N_WIDTH)
 532     fprintf (fout, "\t\twidth:\t%d\n", n->width);
 533   if (n->height != N_HEIGHT)
 534     fprintf (fout, "\t\theight:\t%d\n", n->height);
 535
 536   if (n->shrink != N_SHRINK)
 537     fprintf (fout, "\t\tshrink:\t%d\n", n->shrink);
 538   if (n->stretch != N_STRETCH)
 539     fprintf (fout, "\t\tstretch:\t%d\n", n->stretch);
 540
 541   if (n->folding != N_FOLDING)
 542     fprintf (fout, "\t\tfolding:\t%d\n", n->folding);
 543
 544   if (n->textmode != N_TEXTMODE)
 545     fprintf (fout, "\t\ttextmode:\t%s\n",
 546              get_textmode_str (n->textmode));
 547
 548   if (n->shape != N_SHAPE)
 549     fprintf (fout, "\t\tshape:\t%s\n", get_shape_str (n->shape));
 550
 551   if (n->borderwidth != N_BORDERWIDTH)
 552     fprintf (fout, "\t\tborderwidth:\t%d\n", n->borderwidth);
 553
 554   if (n->color != N_COLOR)
 555     fprintf (fout, "\t\tcolor:\t%s\n", get_color_str (n->color));
 556   if (n->textcolor != N_TEXTCOLOR)
 557     fprintf (fout, "\t\ttextcolor:\t%s\n",
 558              get_color_str (n->textcolor));
 559   if (n->bordercolor != N_BORDERCOLOR)
 560     fprintf (fout, "\t\tbordercolor:\t%s\n",
 561              get_color_str (n->bordercolor));
 562
 563   {
 564     int i;
 565     for (i = 0; i < 3; ++i)
 566       if (n->infos[i])
 567         fprintf (fout, "\t\tinfo%d:\t%s\n",
 568                  i, quote (n->infos[i]));
 569   }
 570 }
 571
 572 void
 573 output_edge (edge *e, FILE *fout)
 574 {
 575   /* FIXME: SOURCENAME and TARGETNAME are mandatory
 576      so it has to be fatal not to give these informations.  */
 577   if (e->sourcename != E_SOURCENAME)
 578     fprintf (fout, "\t\tsourcename:\t%s\n", quote (e->sourcename));
 579   if (e->targetname != E_TARGETNAME)
 580     fprintf (fout, "\t\ttargetname:\t%s\n", quote (e->targetname));
 581
 582   if (e->label != E_LABEL)
 583     fprintf (fout, "\t\tlabel:\t%s\n", quote (e->label));
 584
 585   if (e->linestyle != E_LINESTYLE)
 586     fprintf (fout, "\t\tlinestyle:\t%s\n",
 587              quote (get_linestyle_str (e->linestyle)));
 588
 589   if (e->thickness != E_THICKNESS)
 590     fprintf (fout, "\t\tthickness:\t%d\n", e->thickness);
 591   if (e->class != E_CLASS)
 592     fprintf (fout, "\t\tclass:\t%d\n", e->class);
 593
 594   if (e->color != E_COLOR)
 595     fprintf (fout, "\t\tcolor:\t%s\n", get_color_str (e->color));
 596   if (e->color != E_TEXTCOLOR)
 597     fprintf (fout, "\t\ttextcolor:\t%s\n",
 598              get_color_str (e->textcolor));
 599   if (e->arrowcolor != E_ARROWCOLOR)
 600     fprintf (fout, "\t\tarrowcolor:\t%s\n",
 601              get_color_str (e->arrowcolor));
 602   if (e->backarrowcolor != E_BACKARROWCOLOR)
 603     fprintf (fout, "\t\tbackarrowcolor:\t%s\n",
 604              get_color_str (e->backarrowcolor));
 605
 606   if (e->arrowsize != E_ARROWSIZE)
 607     fprintf (fout, "\t\tarrowsize:\t%d\n", e->arrowsize);
 608   if (e->backarrowsize != E_BACKARROWSIZE)
 609     fprintf (fout, "\t\tbackarrowsize:\t%d\n", e->backarrowsize);
 610
 611   if (e->arrowstyle != E_ARROWSTYLE)
 612     fprintf (fout, "\t\tarrowstyle:\t%s\n",
 613              get_arrowstyle_str (e->arrowstyle));
 614   if (e->backarrowstyle != E_BACKARROWSTYLE)
 615     fprintf (fout, "\t\tbackarrowstyle:\t%s\n",
 616              get_arrowstyle_str (e->backarrowstyle));
 617
 618   if (e->priority != E_PRIORITY)
 619     fprintf (fout, "\t\tpriority:\t%d\n", e->priority);
 620   if (e->anchor != E_ANCHOR)
 621     fprintf (fout, "\t\tanchor:\t%d\n", e->anchor);
 622   if (e->horizontal_order != E_HORIZONTAL_ORDER)
 623     fprintf (fout, "\t\thorizontal_order:\t%d\n", e->horizontal_order);
 624 }
 625
 626 void
 627 output_graph (graph *g, FILE *fout)
 628 {
 629   if (g->title)
 630     fprintf (fout, "\ttitle:\t%s\n", quote (g->title));
 631   if (g->label)
 632     fprintf (fout, "\tlabel:\t%s\n", quote (g->label));
 633
 634   {
 635     int i;
 636     for (i = 0; i < 3; ++i)
 637       if (g->infos[i])
 638         fprintf (fout, "\tinfo%d:\t%s\n", i, quote (g->infos[i]));
 639   }
 640
 641   if (g->color != G_COLOR)
 642     fprintf (fout, "\tcolor:\t%s\n", get_color_str (g->color));
 643   if (g->textcolor != G_TEXTCOLOR)
 644     fprintf (fout, "\ttextcolor:\t%s\n", get_color_str (g->textcolor));
 645   if (g->bordercolor != G_BORDERCOLOR)
 646     fprintf (fout, "\tbordercolor:\t%s\n",
 647              get_color_str (g->bordercolor));
 648
 649   if (g->width != G_WIDTH)
 650     fprintf (fout, "\twidth:\t%d\n", g->width);
 651   if (g->height != G_HEIGHT)
 652     fprintf (fout, "\theight:\t%d\n", g->height);
 653   if (g->borderwidth != G_BORDERWIDTH)
 654     fprintf (fout, "\tborderwidth:\t%d\n", g->borderwidth);
 655
 656   if (g->x != G_X)
 657     fprintf (fout, "\tx:\t%d\n", g->x);
 658   if (g->y != G_Y)
 659     fprintf (fout, "\ty:\t%d\n", g->y);
 660
 661   if (g->folding != G_FOLDING)
 662     fprintf (fout, "\tfolding:\t%d\n", g->folding);
 663
 664   if (g->shrink != G_SHRINK)
 665     fprintf (fout, "\tshrink:\t%d\n", g->shrink);
 666   if (g->stretch != G_STRETCH)
 667     fprintf (fout, "\tstretch:\t%d\n", g->stretch);
 668
 669   if (g->textmode != G_TEXTMODE)
 670     fprintf (fout, "\ttextmode:\t%s\n",
 671              get_textmode_str (g->textmode));
 672
 673   if (g->shape != G_SHAPE)
 674     fprintf (fout, "\tshape:\t%s\n", get_shape_str (g->shape));
 675
 676   if (g->vertical_order != G_VERTICAL_ORDER)
 677     fprintf (fout, "\tvertical_order:\t%d\n", g->vertical_order);
 678   if (g->horizontal_order != G_HORIZONTAL_ORDER)
 679     fprintf (fout, "\thorizontal_order:\t%d\n", g->horizontal_order);
 680
 681   if (g->xmax != G_XMAX)
 682     fprintf (fout, "\txmax:\t%d\n", g->xmax);
 683   if (g->ymax != G_YMAX)
 684     fprintf (fout, "\tymax:\t%d\n", g->ymax);
 685
 686   if (g->xbase != G_XBASE)
 687     fprintf (fout, "\txbase:\t%d\n", g->xbase);
 688   if (g->ybase != G_YBASE)
 689     fprintf (fout, "\tybase:\t%d\n", g->ybase);
 690
 691   if (g->xspace != G_XSPACE)
 692     fprintf (fout, "\txspace:\t%d\n", g->xspace);
 693   if (g->yspace != G_YSPACE)
 694     fprintf (fout, "\tyspace:\t%d\n", g->yspace);
 695   if (g->xlspace != G_XLSPACE)
 696     fprintf (fout, "\txlspace:\t%d\n", g->xlspace);
 697
 698   if (g->xraster != G_XRASTER)
 699     fprintf (fout, "\txraster:\t%d\n", g->xraster);
 700   if (g->yraster != G_YRASTER)
 701     fprintf (fout, "\tyraster:\t%d\n", g->yraster);
 702   if (g->xlraster != G_XLRASTER)
 703     fprintf (fout, "\txlraster:\t%d\n", g->xlraster);
 704
 705   if (g->hidden != G_HIDDEN)
 706     fprintf (fout, "\thidden:\t%d\n", g->hidden);
 707
 708   /* FIXME: Unallocate struct list if required.
 709      Maybe with a little function.  */
 710   if (g->classname != G_CLASSNAME)
 711     {
 712       struct classname *ite;
 713
 714       for (ite = g->classname; ite; ite = ite->next)
 715         fprintf (fout, "\tclassname %d :\t%s\n", ite->no, ite->name);
 716     }
 717
 718   if (g->infoname != G_INFONAME)
 719     {
 720       struct infoname *ite;
 721
 722       for (ite = g->infoname; ite; ite = ite->next)
 723         fprintf (fout, "\tinfoname %d :\t%s\n", ite->integer, ite->chars);
 724     }
 725
 726   if (g->colorentry != G_COLORENTRY)
 727     {
 728       struct colorentry *ite;
 729
 730       for (ite = g->colorentry; ite; ite = ite->next)
 731         {
 732           fprintf (fout, "\tcolorentry %d :\t%d %d %d\n",
 733                    ite->color_index,
 734                    ite->red_cp,
 735                    ite->green_cp,
 736                    ite->blue_cp);
 737         }
 738     }
 739
 740   if (g->layout_downfactor != G_LAYOUT_DOWNFACTOR)
 741     fprintf (fout, "\tlayout_downfactor:\t%d\n", g->layout_downfactor);
 742   if (g->layout_upfactor != G_LAYOUT_UPFACTOR)
 743     fprintf (fout, "\tlayout_upfactor:\t%d\n", g->layout_upfactor);
 744   if (g->layout_nearfactor != G_LAYOUT_NEARFACTOR)
 745     fprintf (fout, "\tlayout_nearfactor:\t%d\n", g->layout_nearfactor);
 746   if (g->layout_splinefactor != G_LAYOUT_SPLINEFACTOR)
 747     fprintf (fout, "\tlayout_splinefactor:\t%d\n",
 748              g->layout_splinefactor);
 749
 750   if (g->late_edge_labels != G_LATE_EDGE_LABELS)
 751     fprintf (fout, "\tlate_edge_labels:\t%s\n",
 752              get_decision_str (g->late_edge_labels));
 753   if (g->display_edge_labels != G_DISPLAY_EDGE_LABELS)
 754     fprintf (fout, "\tdisplay_edge_labels:\t%s\n",
 755              get_decision_str (g->display_edge_labels));
 756   if (g->dirty_edge_labels != G_DIRTY_EDGE_LABELS)
 757     fprintf (fout, "\tdirty_edge_labels:\t%s\n",
 758              get_decision_str (g->dirty_edge_labels));
 759   if (g->finetuning != G_FINETUNING)
 760     fprintf (fout, "\tfinetuning:\t%s\n",
 761              get_decision_str (g->finetuning));
 762   if (g->ignore_singles != G_IGNORE_SINGLES)
 763     fprintf (fout, "\tignore_singles:\t%s\n",
 764              get_decision_str (g->ignore_singles));
 765   if (g->priority_phase != G_PRIORITY_PHASE)
 766     fprintf (fout, "\tpriority_phase:\t%s\n",
 767              get_decision_str (g->priority_phase));
 768   if (g->manhattan_edges != G_MANHATTAN_EDGES)
 769     fprintf (fout,
 770              "\tmanhattan_edges:\t%s\n",
 771              get_decision_str (g->manhattan_edges));
 772   if (g->smanhattan_edges != G_SMANHATTAN_EDGES)
 773     fprintf (fout,
 774              "\tsmanhattan_edges:\t%s\n",
 775              get_decision_str (g->smanhattan_edges));
 776   if (g->near_edges != G_NEAR_EDGES)
 777     fprintf (fout, "\tnear_edges:\t%s\n",
 778              get_decision_str (g->near_edges));
 779
 780   if (g->orientation != G_ORIENTATION)
 781     fprintf (fout, "\torientation:\t%s\n",
 782              get_orientation_str (g->orientation));
 783
 784   if (g->node_alignment != G_NODE_ALIGNMENT)
 785     fprintf (fout, "\tnode_alignment:\t%s\n",
 786              get_node_alignment_str (g->node_alignment));
 787
 788   if (g->port_sharing != G_PORT_SHARING)
 789     fprintf (fout, "\tport_sharing:\t%s\n",
 790              get_decision_str (g->port_sharing));
 791
 792   if (g->arrow_mode != G_ARROW_MODE)
 793     fprintf (fout, "\tarrow_mode:\t%s\n",
 794              get_arrow_mode_str (g->arrow_mode));
 795
 796   if (g->treefactor != G_TREEFACTOR)
 797     fprintf (fout, "\ttreefactor:\t%f\n", g->treefactor);
 798   if (g->spreadlevel != G_SPREADLEVEL)
 799     fprintf (fout, "\tspreadlevel:\t%d\n", g->spreadlevel);
 800
 801   if (g->crossing_weight != G_CROSSING_WEIGHT)
 802     fprintf (fout, "\tcrossing_weight:\t%s\n",
 803              get_crossing_type_str (g->crossing_weight));
 804   if (g->crossing_phase2 != G_CROSSING_PHASE2)
 805     fprintf (fout, "\tcrossing_phase2:\t%s\n",
 806              get_decision_str (g->crossing_phase2));
 807   if (g->crossing_optimization != G_CROSSING_OPTIMIZATION)
 808     fprintf (fout, "\tcrossing_optimization:\t%s\n",
 809              get_decision_str (g->crossing_optimization));
 810
 811   if (g->view != G_VIEW)
 812     fprintf (fout, "\tview:\t%s\n", get_view_str (g->view));
 813
 814   if (g->edges != G_EDGES)
 815     fprintf (fout, "\tedges:\t%s\n", get_decision_str (g->edges));
 816
 817   if (g->nodes != G_NODES)
 818     fprintf (fout,"\tnodes:\t%s\n", get_decision_str (g->nodes));
 819
 820   if (g->splines != G_SPLINES)
 821     fprintf (fout, "\tsplines:\t%s\n", get_decision_str (g->splines));
 822
 823   if (g->bmax != G_BMAX)
 824     fprintf (fout, "\tbmax:\t%d\n", g->bmax);
 825   if (g->cmin != G_CMIN)
 826     fprintf (fout, "\tcmin:\t%d\n", g->cmin);
 827   if (g->cmax != G_CMAX)
 828     fprintf (fout, "\tcmax:\t%d\n", g->cmax);
 829   if (g->pmin != G_PMIN)
 830     fprintf (fout, "\tpmin:\t%d\n", g->pmin);
 831   if (g->pmax != G_PMAX)
 832     fprintf (fout, "\tpmax:\t%d\n", g->pmax);
 833   if (g->rmin != G_RMIN)
 834     fprintf (fout, "\trmin:\t%d\n", g->rmin);
 835   if (g->rmax != G_RMAX)
 836     fprintf (fout, "\trmax:\t%d\n", g->rmax);
 837   if (g->smax != G_SMAX)
 838     fprintf (fout, "\tsmax:\t%d\n", g->smax);
 839 }