/* VCG description handler for Bison.

   Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.

   This file is part of Bison, the GNU Compiler Compiler.

   Bison 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, or (at your option)
   any later version.

   Bison 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 Bison; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include "system.h"

#include <quotearg.h>

#include "vcg.h"
#include "vcg_defaults.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
new_graph (graph *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;
  g->x = G_X;
  g->y = G_Y;
  g->folding = G_FOLDING;
  g->shrink = G_SHRINK;
  g->expand = G_EXPAND;

  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;

  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;
  g->finetuning = G_FINETUNING;
  g->ignore_singles = G_IGNORE_SINGLES;
  g->priority_phase = G_PRIORITY_PHASE;
  g->manhattan_edges = G_MANHATTAN_EDGES;
  g->smanhattan_edges = G_SMANHATTAN_EDGES;
  g->near_edges = G_NEAR_EDGES;

  g->orientation = G_ORIENTATION;
  g->node_alignment = G_NODE_ALIGNMENT;
  g->port_sharing = G_PORT_SHARING;
  g->arrow_mode = G_ARROW_MODE;
  g->treefactor = G_TREEFACTOR;
  g->spreadlevel = G_SPREADLEVEL;
  g->crossing_weight = G_CROSSING_WEIGHT;
  g->crossing_phase2 = G_CROSSING_PHASE2;
  g->crossing_optimization = G_CROSSING_OPTIMIZATION;
  g->view = G_VIEW;

  g->edges = G_EDGES;
  g->nodes = G_NODES;
  g->splines = G_SPLINES;

  g->bmax = G_BMAX;
  g->cmin = G_CMIN;
  g->cmax = G_CMAX;
  g->pmin = G_PMIN;
  g->pmax = G_PMAX;
  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);
}

/* Initialize a node with the default values. */
void
new_node (node *n)
{
  n->title = N_TITLE;
  n->label = N_LABEL;

  n->locx = N_LOCX; /* Default unspcified. */
  n->locy = N_LOCY; /* Default unspcified. */

  n->vertical_order = N_VERTICAL_ORDER;	/* Default unspcified. */
  n->horizontal_order = N_HORIZONTAL_ORDER;	/* Default unspcified. */

  n->width = N_WIDTH; /* We assume that we can't define it now. */
  n->height = N_HEIGHT; /* Also. */

  n->shrink = N_SHRINK;
  n->expand = N_EXPAND;

  n->folding = N_FOLDING; /* No explicit default value. */

  n->shape = N_SHAPE;
  n->textmode = N_TEXTMODE;
  n->borderwidth = N_BORDERWIDTH;

  n->color = N_COLOR;
  n->textcolor = N_TEXTCOLOR;
  n->bordercolor = N_BORDERCOLOR;

  n->infos[0] = N_INFOS1;
  n->infos[1] = N_INFOS2;
  n->infos[2] = N_INFOS3;

  n->next = N_NEXT;
}

/* Initialize an edge with the default values. */
void
new_edge (edge *e)
{
  e->type = E_EDGE_TYPE;

  e->sourcename = E_SOURCENAME;
  e->targetname = E_TARGETNAME;
  e->label = E_LABEL;

  e->linestyle = E_LINESTYLE;
  e->thickness = E_THICKNESS;

  e->class = E_CLASS;

  e->color = E_COLOR;
  e->textcolor = E_TEXTCOLOR;
  e->arrowcolor = E_ARROWCOLOR;
  e->backarrowcolor = E_BACKARROWCOLOR;

  e->arrowsize = E_ARROWSIZE;
  e->backarrowsize = E_BACKARROWSIZE;
  e->arrowstyle = E_ARROWSTYLE;

  e->backarrowstyle = E_BACKARROWSTYLE;

  e->priority = E_PRIORITY;

  e->anchor = E_ANCHOR;

  e->horizontal_order = E_HORIZONTAL_ORDER;

  e->next = E_NEXT;
}

/*----------------------------------------------.
| Get functions.       	                        |
| Return string corresponding to an enum value. |
`----------------------------------------------*/

static const char *
get_color_str (enum color color)
{
  switch (color)
    {
    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:		abort (); return NULL;
    }
}

static const char *
get_textmode_str (enum textmode textmode)
{
  switch (textmode)
    {
    case centered:	return "center";
    case left_justify:	return "left_justify";
    case right_justify:	return "right_justify";
    default:		abort (); return NULL;
    }
}

static const char *
get_shape_str (enum shape shape)
{
  switch (shape)
    {
    case box:		return "box";
    case rhomb:		return "rhomb";
    case ellipse:	return "ellipse";
    case triangle:	return "triangle";
    default:		abort (); return NULL;
    }
}

static const char *
get_layoutalgorithm_str (enum layoutalgorithm layoutalgorithm)
{
  switch (layoutalgorithm)
    {
    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:		abort (); return NULL;
    }
}

static const char *
get_decision_str (enum decision decision)
{
  switch (decision)
    {
    case no:	return "no";
    case yes:	return "yes";
    default:	abort (); return NULL;
    }
}

static const char *
get_orientation_str (enum orientation orientation)
{
  switch (orientation)
    {
    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:		abort (); return NULL;
    }
}

static const char *
get_node_alignment_str (enum alignment alignment)
{
  switch (alignment)
    {
    case center:	return "center";
    case top:		return "top";
    case bottom:	return "bottom";
    default:		abort (); return NULL;
    }
}

static const char *
get_arrow_mode_str (enum arrow_mode arrow_mode)
{
  switch (arrow_mode)
    {
    case fixed:		return "fixed";
    case free_a:	return "free";
    default:		abort (); return NULL;
    }
}

static const char *
get_crossing_type_str (enum crossing_type crossing_type)
{
  switch (crossing_type)
    {
    case bary:		return "bary";
    case median:	return "median";
    case barymedian:	return "barymedian";
    case medianbary:	return "medianbary";
    default:		abort (); return NULL;
    }
}

static const char *
get_view_str (enum view view)
{
  switch (view)
    {
    case normal_view:	return "normal_view";
    case cfish:		return "cfish";
    case pfish:		return "pfish";
    case fcfish:	return "fcfish";
    case fpfish:	return "fpfish";
    default:		abort (); return NULL;
    }
}

static const char *
get_linestyle_str (enum linestyle linestyle)
{
  switch (linestyle)
    {
    case continuous:	return "continuous";
    case dashed:	return "dashed";
    case dotted:	return "dotted";
    case invisible:	return "invisible";
    default:		abort (); return NULL;
    }
}

static const char *
get_arrowstyle_str (enum arrowstyle arrowstyle)
{
  switch (arrowstyle)
    {
    case solid:	return "solid";
    case line:	return "line";
    case none:	return "none";
    default:	abort (); return NULL;
    }
}

/*------------------------------.
| Add functions.       	        |
| Edge and nodes into a graph.  |
`------------------------------*/

void
add_node (graph *g, node *n)
{
  n->next = g->node_list;
  g->node_list = n;
}

void
add_edge (graph *g, edge *e)
{
  e->next = g->edge_list;
  g->edge_list = e;
}

void
add_classname (graph *g, int val, const char *name)
{
  struct classname *classname;

  MALLOC (classname, 1);
  classname->no = val;
  classname->name = name;
  classname->next = g->classname;
  g->classname = classname;
}

void
add_infoname (graph *g, int integer, const char *str)
{
  struct infoname *infoname;

  MALLOC (infoname, 1);
  infoname->integer = integer;
  infoname->chars = str;
  infoname->next = g->infoname;
  g->infoname = infoname;
}

/* Build a colorentry struct and add it to the list.  */
void
add_colorentry (graph *g, int color_idx, int red_cp,
		int green_cp, int blue_cp)
{
  struct colorentry *ce;

  MALLOC (ce, 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 *e, FILE *fout)
{
  switch (e->type)
    {
    case normal_edge:
      fputs ("\tedge: {\n", fout);
      break;
    case back_edge:
      fputs ("\tbackedge: {\n", fout);
      break;
    case near_edge:
      fputs ("\tnearedge: {\n", fout);
      break;
    case bent_near_edge:
      fputs ("\tbentnearedge: {\n", fout);
      break;
    default:
      fputs ("\tedge: {\n", fout);
    }
}

void
close_edge (FILE *fout)
{
  fputs ("\t}\n", fout);
}

void
open_node (FILE *fout)
{
  fputs ("\tnode: {\n", fout);
}

void
close_node (FILE *fout)
{
  fputs ("\t}\n", fout);
}

void
open_graph (FILE *fout)
{
  fputs ("graph: {\n", fout);
}

void
close_graph (graph *g, FILE *fout)
{
  fputc ('\n', fout);

  /* FIXME: Unallocate nodes and edges if required.  */
  {
    node *n;

    for (n = g->node_list; n; n = n->next)
      {
	open_node (fout);
	output_node (n, fout);
	close_node (fout);
      }
  }

  fputc ('\n', fout);

  {
    edge *e;

    for (e = g->edge_list; e; e = e->next)
      {
	open_edge (e, fout);
	output_edge (e, fout);
	close_edge (fout);
      }
  }

  fputs ("}\n", fout);
}

/*-------------------------------------------.
| Output functions (formatted) in file FOUT  |
`-------------------------------------------*/

void
output_node (node *n, FILE *fout)
{
  if (n->title != N_TITLE)
    fprintf (fout, "\t\ttitle:\t%s\n", quote (n->title));
  if (n->label != N_LABEL)
    fprintf (fout, "\t\tlabel:\t%s\n", quote (n->label));

  if ((n->locx != N_LOCX) && (n->locy != N_LOCY))
    fprintf (fout, "\t\tloc { x: %d  y: %d }\t\n", n->locx, n->locy);

  if (n->vertical_order != N_VERTICAL_ORDER)
    fprintf (fout, "\t\tvertical_order:\t%d\n", n->vertical_order);
  if (n->horizontal_order != N_HORIZONTAL_ORDER)
    fprintf (fout, "\t\thorizontal_order:\t%d\n", n->horizontal_order);

  if (n->width != N_WIDTH)
    fprintf (fout, "\t\twidth:\t%d\n", n->width);
  if (n->height != N_HEIGHT)
    fprintf (fout, "\t\theight:\t%d\n", n->height);

  if (n->shrink != N_SHRINK)
    fprintf (fout, "\t\tshrink:\t%d\n", n->shrink);
  if (n->expand != N_EXPAND)
    fprintf (fout, "\t\texpand:\t%d\n", n->expand);

  if (n->folding != N_FOLDING)
    fprintf (fout, "\t\tfolding:\t%d\n", n->folding);

  if (n->textmode != N_TEXTMODE)
    fprintf (fout, "\t\ttextmode:\t%s\n",
	     get_textmode_str (n->textmode));

  if (n->shape != N_SHAPE)
    fprintf (fout, "\t\tshape:\t%s\n", get_shape_str (n->shape));

  if (n->borderwidth != N_BORDERWIDTH)
    fprintf (fout, "\t\tborderwidth:\t%d\n", n->borderwidth);

  if (n->color != N_COLOR)
    fprintf (fout, "\t\tcolor:\t%s\n", get_color_str (n->color));
  if (n->textcolor != N_TEXTCOLOR)
    fprintf (fout, "\t\ttextcolor:\t%s\n",
	     get_color_str (n->textcolor));
  if (n->bordercolor != N_BORDERCOLOR)
    fprintf (fout, "\t\tbordercolor:\t%s\n",
	     get_color_str (n->bordercolor));

  {
    int i;
    for (i = 0; i < 3; ++i)
      if (n->infos[i])
	fprintf (fout, "\t\tinfo%d:\t%s\n",
		 i, quote (n->infos[i]));
  }
}

void
output_edge (edge *e, FILE *fout)
{
  /* FIXME: SOURCENAME and TARGETNAME are mandatory
     so it has to be fatal not to give these informations.  */
  if (e->sourcename != E_SOURCENAME)
    fprintf (fout, "\t\tsourcename:\t%s\n", quote (e->sourcename));
  if (e->targetname != E_TARGETNAME)
    fprintf (fout, "\t\ttargetname:\t%s\n", quote (e->targetname));

  if (e->label != E_LABEL)
    fprintf (fout, "\t\tlabel:\t%s\n", quote (e->label));

  if (e->linestyle != E_LINESTYLE)
    fprintf (fout, "\t\tlinestyle:\t%s\n",
	     quote (get_linestyle_str (e->linestyle)));

  if (e->thickness != E_THICKNESS)
    fprintf (fout, "\t\tthickness:\t%d\n", e->thickness);
  if (e->class != E_CLASS)
    fprintf (fout, "\t\tclass:\t%d\n", e->class);

  if (e->color != E_COLOR)
    fprintf (fout, "\t\tcolor:\t%s\n", get_color_str (e->color));
  if (e->color != E_TEXTCOLOR)
    fprintf (fout, "\t\ttextcolor:\t%s\n",
	     get_color_str (e->textcolor));
  if (e->arrowcolor != E_ARROWCOLOR)
    fprintf (fout, "\t\tarrowcolor:\t%s\n",
	     get_color_str (e->arrowcolor));
  if (e->backarrowcolor != E_BACKARROWCOLOR)
    fprintf (fout, "\t\tbackarrowcolor:\t%s\n",
	     get_color_str (e->backarrowcolor));

  if (e->arrowsize != E_ARROWSIZE)
    fprintf (fout, "\t\tarrowsize:\t%d\n", e->arrowsize);
  if (e->backarrowsize != E_BACKARROWSIZE)
    fprintf (fout, "\t\tbackarrowsize:\t%d\n", e->backarrowsize);

  if (e->arrowstyle != E_ARROWSTYLE)
    fprintf (fout, "\t\tarrowstyle:\t%s\n",
	     get_arrowstyle_str (e->arrowstyle));
  if (e->backarrowstyle != E_BACKARROWSTYLE)
    fprintf (fout, "\t\tbackarrowstyle:\t%s\n",
	     get_arrowstyle_str (e->backarrowstyle));

  if (e->priority != E_PRIORITY)
    fprintf (fout, "\t\tpriority:\t%d\n", e->priority);
  if (e->anchor != E_ANCHOR)
    fprintf (fout, "\t\tanchor:\t%d\n", e->anchor);
  if (e->horizontal_order != E_HORIZONTAL_ORDER)
    fprintf (fout, "\t\thorizontal_order:\t%d\n", e->horizontal_order);
}

void
output_graph (graph *g, FILE *fout)
{
  if (g->title)
    fprintf (fout, "\ttitle:\t%s\n", quote (g->title));
  if (g->label)
    fprintf (fout, "\tlabel:\t%s\n", quote (g->label));

  {
    int i;
    for (i = 0; i < 3; ++i)
      if (g->infos[i])
	fprintf (fout, "\tinfo%d:\t%s\n", i, quote (g->infos[i]));
  }

  if (g->color != G_COLOR)
    fprintf (fout, "\tcolor:\t%s\n", get_color_str (g->color));
  if (g->textcolor != G_TEXTCOLOR)
    fprintf (fout, "\ttextcolor:\t%s\n", get_color_str (g->textcolor));
  if (g->bordercolor != G_BORDERCOLOR)
    fprintf (fout, "\tbordercolor:\t%s\n",
	     get_color_str (g->bordercolor));

  if (g->width != G_WIDTH)
    fprintf (fout, "\twidth:\t%d\n", g->width);
  if (g->height != G_HEIGHT)
    fprintf (fout, "\theight:\t%d\n", g->height);
  if (g->borderwidth != G_BORDERWIDTH)
    fprintf (fout, "\tborderwidth:\t%d\n", g->borderwidth);

  if (g->x != G_X)
    fprintf (fout, "\tx:\t%d\n", g->x);
  if (g->y != G_Y)
    fprintf (fout, "\ty:\t%d\n", g->y);

  if (g->folding != G_FOLDING)
    fprintf (fout, "\tfolding:\t%d\n", g->folding);

  if (g->shrink != G_SHRINK)
    fprintf (fout, "\tshrink:\t%d\n", g->shrink);
  if (g->expand != G_EXPAND)
    fprintf (fout, "\texpand:\t%d\n", g->expand);

  if (g->textmode != G_TEXTMODE)
    fprintf (fout, "\ttextmode:\t%s\n",
	     get_textmode_str (g->textmode));

  if (g->shape != G_SHAPE)
    fprintf (fout, "\tshape:\t%s\n", get_shape_str (g->shape));

  if (g->vertical_order != G_VERTICAL_ORDER)
    fprintf (fout, "\tvertical_order:\t%d\n", g->vertical_order);
  if (g->horizontal_order != G_HORIZONTAL_ORDER)
    fprintf (fout, "\thorizontal_order:\t%d\n", g->horizontal_order);

  if (g->xmax != G_XMAX)
    fprintf (fout, "\txmax:\t%d\n", g->xmax);
  if (g->ymax != G_YMAX)
    fprintf (fout, "\tymax:\t%d\n", g->ymax);

  if (g->xbase != G_XBASE)
    fprintf (fout, "\txbase:\t%d\n", g->xbase);
  if (g->ybase != G_YBASE)
    fprintf (fout, "\tybase:\t%d\n", g->ybase);

  if (g->xspace != G_XSPACE)
    fprintf (fout, "\txspace:\t%d\n", g->xspace);
  if (g->yspace != G_YSPACE)
    fprintf (fout, "\tyspace:\t%d\n", g->yspace);
  if (g->xlspace != G_XLSPACE)
    fprintf (fout, "\txlspace:\t%d\n", g->xlspace);

  if (g->xraster != G_XRASTER)
    fprintf (fout, "\txraster:\t%d\n", g->xraster);
  if (g->yraster != G_YRASTER)
    fprintf (fout, "\tyraster:\t%d\n", g->yraster);
  if (g->xlraster != G_XLRASTER)
    fprintf (fout, "\txlraster:\t%d\n", g->xlraster);

  if (g->hidden != G_HIDDEN)
    fprintf (fout, "\thidden:\t%d\n", g->hidden);

  /* FIXME: Unallocate struct list if required.
     Maybe with a little function.  */
  if (g->classname != G_CLASSNAME)
    {
      struct classname *ite;

      for (ite = g->classname; ite; ite = ite->next)
	fprintf (fout, "\tclassname %d :\t%s\n", ite->no, ite->name);
    }

  if (g->infoname != G_INFONAME)
    {
      struct infoname *ite;

      for (ite = g->infoname; ite; ite = ite->next)
	fprintf (fout, "\tinfoname %d :\t%s\n", ite->integer, ite->chars);
    }

  if (g->colorentry != G_COLORENTRY)
    {
      struct colorentry *ite;

      for (ite = g->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 (g->layoutalgorithm != G_LAYOUTALGORITHM)
    fprintf (fout, "\tlayoutalgorithm:\t%s\n",
	     get_layoutalgorithm_str (g->layoutalgorithm));

  if (g->layout_downfactor != G_LAYOUT_DOWNFACTOR)
    fprintf (fout, "\tlayout_downfactor:\t%d\n", g->layout_downfactor);
  if (g->layout_upfactor != G_LAYOUT_UPFACTOR)
    fprintf (fout, "\tlayout_upfactor:\t%d\n", g->layout_upfactor);
  if (g->layout_nearfactor != G_LAYOUT_NEARFACTOR)
    fprintf (fout, "\tlayout_nearfactor:\t%d\n", g->layout_nearfactor);
  if (g->layout_splinefactor != G_LAYOUT_SPLINEFACTOR)
    fprintf (fout, "\tlayout_splinefactor:\t%d\n",
	     g->layout_splinefactor);

  if (g->late_edge_labels != G_LATE_EDGE_LABELS)
    fprintf (fout, "\tlate_edge_labels:\t%s\n",
	     get_decision_str (g->late_edge_labels));
  if (g->display_edge_labels != G_DISPLAY_EDGE_LABELS)
    fprintf (fout, "\tdisplay_edge_labels:\t%s\n",
	     get_decision_str (g->display_edge_labels));
  if (g->dirty_edge_labels != G_DIRTY_EDGE_LABELS)
    fprintf (fout, "\tdirty_edge_labels:\t%s\n",
	     get_decision_str (g->dirty_edge_labels));
  if (g->finetuning != G_FINETUNING)
    fprintf (fout, "\tfinetuning:\t%s\n",
	     get_decision_str (g->finetuning));
  if (g->ignore_singles != G_IGNORE_SINGLES)
    fprintf (fout, "\tignore_singles:\t%s\n",
	     get_decision_str (g->ignore_singles));
  if (g->priority_phase != G_PRIORITY_PHASE)
    fprintf (fout, "\tpriority_phase:\t%s\n",
	     get_decision_str (g->priority_phase));
  if (g->manhattan_edges != G_MANHATTAN_EDGES)
    fprintf (fout,
	     "\tmanhattan_edges:\t%s\n",
	     get_decision_str (g->manhattan_edges));
  if (g->smanhattan_edges != G_SMANHATTAN_EDGES)
    fprintf (fout,
	     "\tsmanhattan_edges:\t%s\n",
	     get_decision_str (g->smanhattan_edges));
  if (g->near_edges != G_NEAR_EDGES)
    fprintf (fout, "\tnear_edges:\t%s\n",
	     get_decision_str (g->near_edges));

  if (g->orientation != G_ORIENTATION)
    fprintf (fout, "\torientation:\t%s\n",
	     get_orientation_str (g->orientation));

  if (g->node_alignment != G_NODE_ALIGNMENT)
    fprintf (fout, "\tnode_alignment:\t%s\n",
	     get_node_alignment_str (g->node_alignment));

  if (g->port_sharing != G_PORT_SHARING)
    fprintf (fout, "\tport_sharing:\t%s\n",
	     get_decision_str (g->port_sharing));

  if (g->arrow_mode != G_ARROW_MODE)
    fprintf (fout, "\tarrow_mode:\t%s\n",
	     get_arrow_mode_str (g->arrow_mode));

  if (g->treefactor != G_TREEFACTOR)
    fprintf (fout, "\ttreefactor:\t%f\n", g->treefactor);
  if (g->spreadlevel != G_SPREADLEVEL)
    fprintf (fout, "\tspreadlevel:\t%d\n", g->spreadlevel);

  if (g->crossing_weight != G_CROSSING_WEIGHT)
    fprintf (fout, "\tcrossing_weight:\t%s\n",
	     get_crossing_type_str (g->crossing_weight));
  if (g->crossing_phase2 != G_CROSSING_PHASE2)
    fprintf (fout, "\tcrossing_phase2:\t%s\n",
	     get_decision_str (g->crossing_phase2));
  if (g->crossing_optimization != G_CROSSING_OPTIMIZATION)
    fprintf (fout, "\tcrossing_optimization:\t%s\n",
	     get_decision_str (g->crossing_optimization));

  if (g->view != G_VIEW)
    fprintf (fout, "\tview:\t%s\n", get_view_str (g->view));

  if (g->edges != G_EDGES)
    fprintf (fout, "\tedges:\t%s\n", get_decision_str (g->edges));

  if (g->nodes != G_NODES)
    fprintf (fout,"\tnodes:\t%s\n", get_decision_str (g->nodes));

  if (g->splines != G_SPLINES)
    fprintf (fout, "\tsplines:\t%s\n", get_decision_str (g->splines));

  if (g->bmax != G_BMAX)
    fprintf (fout, "\tbmax:\t%d\n", g->bmax);
  if (g->cmin != G_CMIN)
    fprintf (fout, "\tcmin:\t%d\n", g->cmin);
  if (g->cmax != G_CMAX)
    fprintf (fout, "\tcmax:\t%d\n", g->cmax);
  if (g->pmin != G_PMIN)
    fprintf (fout, "\tpmin:\t%d\n", g->pmin);
  if (g->pmax != G_PMAX)
    fprintf (fout, "\tpmax:\t%d\n", g->pmax);
  if (g->rmin != G_RMIN)
    fprintf (fout, "\trmin:\t%d\n", g->rmin);
  if (g->rmax != G_RMAX)
    fprintf (fout, "\trmax:\t%d\n", g->rmax);
  if (g->smax != G_SMAX)
    fprintf (fout, "\tsmax:\t%d\n", g->smax);
}