Change @dircategory from "GNU programming tools" to "Software development".

[bison.git] / src / print_graph.c

diff --git a/src/print_graph.c b/src/print_graph.c
index 4ae726fb5c9199eead7dcabc5b0e66fac23ca554..0eecd460132fe905f44a03ee154711547a7bfdc6 100644 (file)
--- a/src/print_graph.c
+++ b/src/print_graph.c
@@ -1,5 +1,6 @@
 /* Output a VCG description on generated parser, for Bison,
 /* Output a VCG description on generated parser, for Bison,

-   Copyright 2001 Free Software Foundation, Inc.
+
+   Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.

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


@@ -19,23 +20,25 @@
    Boston, MA 02111-1307, USA.  */
 
 #include "system.h"
    Boston, MA 02111-1307, USA.  */
 
 #include "system.h"

-#include "quotearg.h"
-#include "files.h"
-#include "symtab.h"
-#include "gram.h"
+
+#include <obstack.h>
+#include <quotearg.h>
+

 #include "LR0.h"
 #include "LR0.h"

-#include "lalr.h"
-#include "conflicts.h"
+#include "closure.h"

 #include "complain.h"
 #include "complain.h"

+#include "conflicts.h"
+#include "files.h"

 #include "getargs.h"
 #include "getargs.h"

-#include "state.h"
-#include "reader.h"
-#include "closure.h"
-#include "obstack.h"
+#include "gram.h"
+#include "lalr.h"

 #include "print_graph.h"
 #include "print_graph.h"

+#include "reader.h"
+#include "state.h"
+#include "symtab.h"

 #include "vcg.h"
 
 #include "vcg.h"
 

-static graph_t graph;
+static graph static_graph;

 static FILE *fgraph = NULL;
 
 
 static FILE *fgraph = NULL;
 
 


@@ -44,11 +47,11 @@ static FILE *fgraph = NULL;
 `----------------------------*/
 
 static void
 `----------------------------*/
 
 static void

-print_core (struct obstack *oout, state_t *state)
+print_core (struct obstack *oout, state *s)

 {
 {

-  int i;
-  item_number_t *sitems = state->items;
-  int snritems   = state->nitems;
+  size_t i;
+  item_number *sitems = s->items;
+  size_t snritems = s->nitems;

 
   /* Output all the items of a state, not only its kernel.  */
   if (report_flag & report_itemsets)
 
   /* Output all the items of a state, not only its kernel.  */
   if (report_flag & report_itemsets)


@@ -58,26 +61,26 @@ print_core (struct obstack *oout, state_t *state)
       snritems = nritemset;
     }
 
       snritems = nritemset;
     }
 

-  obstack_fgrow1 (oout, "state %2d\n", state->number);
+  obstack_fgrow1 (oout, "state %2d\n", s->number);

   for (i = 0; i < snritems; i++)
     {
   for (i = 0; i < snritems; i++)
     {

-      item_number_t *sp;
-      item_number_t *sp1;
-      rule_number_t rule;
+      item_number *sp;
+      item_number *sp1;
+      rule_number r;

 
       sp1 = sp = ritem + sitems[i];
 
       while (*sp >= 0)
        sp++;
 
 
       sp1 = sp = ritem + sitems[i];
 
       while (*sp >= 0)
        sp++;
 

-      rule = rule_number_of_item_number (*sp);
+      r = item_number_as_rule_number (*sp);

 
       if (i)
        obstack_1grow (oout, '\n');
       obstack_fgrow1 (oout, " %s -> ",
 
       if (i)
        obstack_1grow (oout, '\n');
       obstack_fgrow1 (oout, " %s -> ",

-                     rules[rule].lhs->tag);
+                     rules[r].lhs->tag);

 
 

-      for (sp = rules[rule].rhs; sp < sp1; sp++)
+      for (sp = rules[r].rhs; sp < sp1; sp++)

        obstack_fgrow1 (oout, "%s ", symbols[*sp]->tag);
 
       obstack_1grow (oout, '.');
        obstack_fgrow1 (oout, "%s ", symbols[*sp]->tag);
 
       obstack_1grow (oout, '.');


@@ -85,29 +88,25 @@ print_core (struct obstack *oout, state_t *state)
       for (/* Nothing */; *sp >= 0; ++sp)
        obstack_fgrow1 (oout, " %s", symbols[*sp]->tag);
 
       for (/* Nothing */; *sp >= 0; ++sp)
        obstack_fgrow1 (oout, " %s", symbols[*sp]->tag);
 

-      /* Experimental feature: display the lookaheads. */
-      if ((report_flag & report_lookaheads)
-         && state->nlookaheads)
+      /* Experimental feature: display the look-ahead tokens. */
+      if (report_flag & report_look_ahead_tokens)

        {
        {

-         int j, k;
-         bitset_iterator biter;
-         int nlookaheads = 0;
+         /* Find the reduction we are handling.  */
+         reductions *reds = s->reductions;
+         int redno = state_reduction_find (s, &rules[r]);

 
 

-         /* Look for lookaheads corresponding to this rule. */
-         for (j = 0; j < state->nlookaheads; ++j)
-           BITSET_FOR_EACH (biter, state->lookaheads[j], k, 0)
-             if (state->lookaheads_rule[j]->number == rule)
-               nlookaheads++;
-
-         if (nlookaheads)
+         /* Print them if there are.  */
+         if (reds->look_ahead_tokens && redno != -1)

            {
            {

-             obstack_sgrow (oout, "  [");
-             for (j = 0; j < state->nlookaheads; ++j)
-               BITSET_FOR_EACH (biter, state->lookaheads[j], k, 0)
-                 if (state->lookaheads_rule[j]->number == rule)
-                   obstack_fgrow2 (oout, "%s%s",
-                                   symbols[k]->tag,
-                                   --nlookaheads ? ", " : "");
+             bitset_iterator biter;
+             int k;
+             char const *sep = "";
+             obstack_sgrow (oout, "[");
+             BITSET_FOR_EACH (biter, reds->look_ahead_tokens[redno], k, 0)
+               {
+                 obstack_fgrow2 (oout, "%s%s", sep, symbols[k]->tag);
+                 sep = ", ";
+               }

              obstack_sgrow (oout, "]");
            }
        }
              obstack_sgrow (oout, "]");
            }
        }


@@ -121,41 +120,41 @@ print_core (struct obstack *oout, state_t *state)
 `---------------------------------------------------------------*/
 
 static void
 `---------------------------------------------------------------*/
 
 static void

-print_actions (state_t *state, const char *node_name)
+print_actions (state *s, const char *node_name)

 {
   int i;
 
 {
   int i;
 

-  transitions_t     *transitions = state->shifts;
-  reductions_t *redp = state->reductions;
+  transitions *trans = s->transitions;
+  reductions *reds = s->reductions;

 
   static char buff[10];
 
   static char buff[10];

-  edge_t edge;
+  edge e;

 
 

-  if (!transitions->num && !redp)
+  if (!trans->num && !reds)

     return;
 
     return;
 

-  for (i = 0; i < transitions->num; i++)
-    if (!TRANSITION_IS_DISABLED (transitions, i))
+  for (i = 0; i < trans->num; i++)
+    if (!TRANSITION_IS_DISABLED (trans, i))

       {
       {

-       state_number_t state1 = transitions->states[i];
-       symbol_number_t symbol = states[state1]->accessing_symbol;
+       state *s1 = trans->states[i];
+       symbol_number sym = s1->accessing_symbol;

 
 

-       new_edge (&edge);
+       new_edge (&e);

 
 

-       if (state->number > state1)
-         edge.type = back_edge;
-       open_edge (&edge, fgraph);
+       if (s->number > s1->number)
+         e.type = back_edge;
+       open_edge (&e, fgraph);

        /* The edge source is the current node.  */
        /* The edge source is the current node.  */

-       edge.sourcename = node_name;
-       sprintf (buff, "%d", state1);
-       edge.targetname = buff;
+       e.sourcename = node_name;
+       sprintf (buff, "%d", s1->number);
+       e.targetname = buff;

        /* Shifts are blue, gotos are green, and error is red. */
        /* Shifts are blue, gotos are green, and error is red. */

-       if (TRANSITION_IS_ERROR (transitions, i))
-         edge.color = red;
+       if (TRANSITION_IS_ERROR (trans, i))
+         e.color = red;

        else
        else

-         edge.color = TRANSITION_IS_SHIFT(transitions, i) ? blue : green;
-       edge.label = symbols[symbol]->tag;
-       output_edge (&edge, fgraph);
+         e.color = TRANSITION_IS_SHIFT (trans, i) ? blue : green;
+       e.label = symbols[sym]->tag;
+       output_edge (&e, fgraph);

        close_edge (fgraph);
       }
 }
        close_edge (fgraph);
       }
 }


@@ -167,27 +166,27 @@ print_actions (state_t *state, const char *node_name)
 `-------------------------------------------------------------*/
 
 static void
 `-------------------------------------------------------------*/
 
 static void

-print_state (state_t *state)
+print_state (state *s)

 {
   static char name[10];
   struct obstack node_obstack;
 {
   static char name[10];
   struct obstack node_obstack;

-  node_t node;
+  node n;

 
   /* The labels of the nodes are their the items.  */
   obstack_init (&node_obstack);
 
   /* The labels of the nodes are their the items.  */
   obstack_init (&node_obstack);

-  new_node (&node);
-  sprintf (name, "%d", state->number);
-  node.title = name;
-  print_core (&node_obstack, state);
+  new_node (&n);
+  sprintf (name, "%d", s->number);
+  n.title = name;
+  print_core (&node_obstack, s);

   obstack_1grow (&node_obstack, '\0');
   obstack_1grow (&node_obstack, '\0');

-  node.label = obstack_finish (&node_obstack);
+  n.label = obstack_finish (&node_obstack);

 
   open_node (fgraph);
 
   open_node (fgraph);

-  output_node (&node, fgraph);
+  output_node (&n, fgraph);

   close_node (fgraph);
 
   /* Output the edges.  */
   close_node (fgraph);
 
   /* Output the edges.  */

-  print_actions (state, name);
+  print_actions (s, name);

 
   obstack_free (&node_obstack, 0);
 }
 
   obstack_free (&node_obstack, 0);
 }


@@ -196,32 +195,25 @@ print_state (state_t *state)
 void
 print_graph (void)
 {
 void
 print_graph (void)
 {

-  state_number_t i;
+  state_number i;

 
   /* Output file.  */
   fgraph = xfopen (spec_graph_file, "w");
 
 
   /* Output file.  */
   fgraph = xfopen (spec_graph_file, "w");
 

-  new_graph (&graph);
-
-#if 0
-  graph.smanhattan_edges = yes;
-  graph.manhattan_edges = yes;
-#endif
+  new_graph (&static_graph);

 
 

-  graph.display_edge_labels = yes;
-  graph.layoutalgorithm = normal;
+  static_graph.display_edge_labels = yes;

 
 

-  graph.port_sharing = no;
-  graph.finetuning = yes;
-  graph.straight_phase = yes;
-  graph.priority_phase = yes;
-  graph.splines = yes;
+  static_graph.port_sharing = no;
+  static_graph.finetuning = yes;
+  static_graph.priority_phase = yes;
+  static_graph.splines = yes;

 
 

-  graph.crossing_weight = median;
+  static_graph.crossing_weight = median;

 
   /* Output graph options. */
   open_graph (fgraph);
 
   /* Output graph options. */
   open_graph (fgraph);

-  output_graph (&graph, fgraph);
+  output_graph (&static_graph, fgraph);

 
   /* Output nodes and edges. */
   new_closure (nritems);
 
   /* Output nodes and edges. */
   new_closure (nritems);


@@ -230,6 +222,6 @@ print_graph (void)
   free_closure ();
 
   /* Close graph. */
   free_closure ();
 
   /* Close graph. */

-  close_graph (&graph, fgraph);
+  close_graph (&static_graph, fgraph);

   xfclose (fgraph);
 }
   xfclose (fgraph);
 }