Also pass --install to the second invocation of autoreconf, to let automake install...

[bison.git] / src / print_graph.c

diff --git a/src/print_graph.c b/src/print_graph.c
index 2ce8e45150e3238ce8bd26f7d9d55a86a3eb2743..15861f3525d0ade79bb43c1affcb25522232b171 100644 (file)
--- a/src/print_graph.c
+++ b/src/print_graph.c
@@ -19,7 +19,9 @@
    Boston, MA 02111-1307, USA.  */
 
 #include "system.h"
    Boston, MA 02111-1307, USA.  */
 
 #include "system.h"

+#include "quotearg.h"

 #include "files.h"
 #include "files.h"

+#include "symtab.h"

 #include "gram.h"
 #include "LR0.h"
 #include "lalr.h"
 #include "gram.h"
 #include "LR0.h"
 #include "lalr.h"


@@ -28,226 +30,141 @@
 #include "getargs.h"
 #include "state.h"
 #include "reader.h"
 #include "getargs.h"
 #include "state.h"
 #include "reader.h"

+#include "closure.h"

 #include "obstack.h"
 #include "print_graph.h"
 #include "vcg.h"
 #include "obstack.h"
 #include "print_graph.h"
 #include "vcg.h"

-#include "quotearg.h"

 
 static graph_t graph;
 static FILE *fgraph = NULL;
 
 
 static graph_t graph;
 static FILE *fgraph = NULL;
 

-static size_t node_output_size = 0;
-
-/* Return an unambiguous printable representated, allocated in slot 0,
-   for NAME, suitable for C strings.  */
-static char const *
-quote (char const *name)
+static inline const char *
+escape (const char *s)

 {
 {

-  return quotearg_n_style (0, escape_quoting_style, name);
+  return quotearg_n_style (1, escape_quoting_style, s);

 }
 
 }
 

+

 /* This part will construct the label of nodes. */
 static void
 /* This part will construct the label of nodes. */
 static void

-print_core (int state, struct obstack *node_obstack)
+print_core (state_t *state, struct obstack *node_obstack)

 {
   int i;
 {
   int i;

-  int k;
-  int rule;
-  core *statep;
-  short *sp;
-  short *sp1;
-
-  statep = state_table[state].state;
-  k = statep->nitems;
+  item_number_t *sitems = state->items;
+  int snritems   = state->nitems;

 
 

-  if (k == 0)
-    return;
+  /* Output all the items of a state, not only its kernel.  */
+  if (trace_flag)
+    {
+      closure (sitems, snritems);
+      sitems = itemset;
+      snritems = nritemset;
+    }

 
 

-  for (i = 0; i < k; i++)
+  obstack_fgrow1 (node_obstack, "state %2d\n", state->number);
+  for (i = 0; i < snritems; i++)

     {
     {

-      if (i)
-       obstack_sgrow (node_obstack, "\\n");
+      item_number_t *sp;
+      item_number_t *sp1;
+      int rule;

 
 

-      sp1 = sp = ritem + statep->items[i];
+      sp1 = sp = ritem + sitems[i];

 
 

-      while (*sp > 0)
+      while (*sp >= 0)

        sp++;
 
       rule = -(*sp);
 
        sp++;
 
       rule = -(*sp);
 

-      obstack_fgrow1 (node_obstack, "%d: ", rule);
-      obstack_fgrow1 (node_obstack, " %s  ->  ", quote (tags[rlhs[rule]]));
+      if (i)
+       obstack_1grow (node_obstack, '\n');
+      obstack_fgrow1 (node_obstack, " %s -> ",
+                     escape (rules[rule].lhs->tag));

 
 

-      for (sp = ritem + rrhs[rule]; sp < sp1; sp++)
-       obstack_fgrow1 (node_obstack, "%s ", quote (tags[*sp]));
+      for (sp = rules[rule].rhs; sp < sp1; sp++)
+       obstack_fgrow1 (node_obstack, "%s ", escape (symbols[*sp]->tag));

 
       obstack_1grow (node_obstack, '.');
 
 
       obstack_1grow (node_obstack, '.');
 

-      while (*sp > 0)
-       obstack_fgrow1 (node_obstack, " %s", quote (tags[*sp++]));
+      for (/* Nothing */; *sp >= 0; ++sp)
+       obstack_fgrow1 (node_obstack, " %s", escape (symbols[*sp]->tag));

     }
 }
 
     }
 }
 

-/* Output in graph_obstack edges specifications in incidence with current
-   node.  */
+
+/*---------------------------------------------------------------.
+| Output in graph_obstack edges specifications in incidence with |
+| current node.                                                  |
+`---------------------------------------------------------------*/
+

 static void
 static void

-print_actions (int state, const char *node_name, struct obstack *node_obstack)
+print_actions (state_t *state, const char *node_name)

 {
   int i;
 {
   int i;

-  int k;
-  int state1;
-  int symbol;
-  shifts *shiftp;
-  errs *errp;
-  reductions *redp;
-  int rule;
-  static char buff[10];
-  edge_t edge;

 
 

-  shiftp = state_table[state].shift_table;
-  redp = state_table[state].reduction_table;
-  errp = err_table[state];
-
-  if (!shiftp && !redp)
-    {
-      if (final_state == state)
-       obstack_sgrow (node_obstack, "$default: accept");
-      else
-       obstack_sgrow (node_obstack, "NO ACTIONS");
-      return;
-    }
+  shifts   *shiftp = state->shifts;
+  reductions *redp = state->reductions;

 
 

-  if (shiftp)
-    {
-      k = shiftp->nshifts;
-
-      for (i = 0; i < k; i++)
-       {
-         if (!shiftp->shifts[i])
-           continue;
-         state1 = shiftp->shifts[i];
-         symbol = state_table[state1].accessing_symbol;
-
-         if (ISVAR (symbol))
-           break;
-
-         {
-           new_edge (&edge);
-
-           if (state > state1)
-             edge.type = back_edge;
-           open_edge (&edge, fgraph);
-           /* The edge source is the current node.  */
-           edge.sourcename = node_name;
-           sprintf (buff, "%d", state1);
-           edge.targetname = buff;
-           edge.color = (symbol == 0) ? red : blue;
-           /* FIXME: Be aware that quote uses static memory.  The string
-              must be output immediately (which is the case here). */
-           edge.label = tags[symbol] ? quote (tags[symbol]) : NULL;
-           output_edge (&edge, fgraph);
-           close_edge (fgraph);
-         }
-       }
-    }
-  else
-    {
-      i = 0;
-      k = 0;
-    }
-
-  if (errp)
-    {
-      int j, nerrs;
-
-      nerrs = errp->nerrs;
-
-      for (j = 0; j < nerrs; j++)
-       {
-         if (!errp->errs[j])
-           continue;
-         symbol = errp->errs[j];
-         /* If something has been added in the NODE_OBSTACK after
-            the declaration of the label, then we need a `\n'.  */
-         if (obstack_object_size (node_obstack) > node_output_size)
-           obstack_sgrow (node_obstack, "\\n");
-         obstack_fgrow1 (node_obstack, _("%-4s\terror (nonassociative)"),
-                         tags[symbol]);
-       }
-      if (j > 0)
-       obstack_sgrow (node_obstack, "\\n");
-    }
+  static char buff[10];
+  edge_t edge;

 
 

-  if (state_table[state].consistent && redp)
-    {
-      rule = redp->rules[0];
-      symbol = rlhs[rule];
-      if (obstack_object_size (node_obstack) > node_output_size)
-       obstack_sgrow (node_obstack, "\\n");
-      obstack_fgrow2 (node_obstack, _("$default\treduce using rule %d (%s)"),
-                     rule, tags[symbol]);
-    }
+  if (!shiftp->nshifts && !redp)
+    return;

 
 

-  if (i < k)
-    {
-      for (; i < k; i++)
-       {
-         if (!shiftp->shifts[i])
-           continue;
-         state1 = shiftp->shifts[i];
-         symbol = state_table[state1].accessing_symbol;
-
-         new_edge (&edge);
-         open_edge (&edge, fgraph);
-         edge.sourcename = node_name;
-         sprintf (buff, "%d", state1);
-         edge.targetname = buff;
+  for (i = 0; i < shiftp->nshifts; i++)
+    if (!SHIFT_IS_DISABLED (shiftp, i))
+      {
+       int state1 = shiftp->shifts[i];
+       token_number_t symbol = states[state1]->accessing_symbol;
+
+       new_edge (&edge);
+
+       if (state->number > state1)
+         edge.type = back_edge;
+       open_edge (&edge, fgraph);
+       /* The edge source is the current node.  */
+       edge.sourcename = node_name;
+       sprintf (buff, "%d", state1);
+       edge.targetname = buff;
+       /* Shifts are blue, gotos are green, and error is red. */
+       if (SHIFT_IS_ERROR (shiftp, i))

          edge.color = red;
          edge.color = red;

-         edge.label = tags[symbol] ? quote (tags[symbol]) : NULL;
-         output_edge (&edge, fgraph);
-         close_edge (fgraph);
-       }
-    }
+       else
+         edge.color = SHIFT_IS_SHIFT(shiftp, i) ? blue : green;
+       edge.label = escape (symbols[symbol]->tag);
+       output_edge (&edge, fgraph);
+       close_edge (fgraph);
+      }

 }
 
 }
 

-/* Output in GRAPH_OBSTACK the current node specifications and edges
-   which go out from that node.  */
+
+/*-------------------------------------------------------------.
+| Output in FGRAPH the current node specifications and exiting |
+| edges.                                                       |
+`-------------------------------------------------------------*/
+

 static void
 static void

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

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

+  /* The labels of the nodes are their the items.  */

   obstack_init (&node_obstack);
   obstack_init (&node_obstack);

-  new_node (&node);    /* Set node attributs default value.  */
-  sprintf (name, "%d", state);
-  node.title = name;   /* Give a name to the node.  */
-
-  {
-    /* Here we begin to compute the node label. */
-    obstack_sgrow (&node_obstack, "\t\tlabel:\t\"");   /* Open Label  */
-
-    /* Keep the size of NODE_OBSTACK before computing the label. It is
-       useful to format the label.  */
-    node_output_size = obstack_object_size (&node_obstack);
-
-    /* Compute the labels of nodes on the fly.  */
-    print_core (state, &node_obstack);
-    /* Compute edges and additionnal parts of node label.  */
-    print_actions (state, node.title, &node_obstack);
-
-    obstack_sgrow (&node_obstack, "\"\n");             /* Close Label.  */
-  }
+  new_node (&node);
+  sprintf (name, "%d", state->number);
+  node.title = name;
+  print_core (state, &node_obstack);
+  obstack_1grow (&node_obstack, '\0');
+  node.label = obstack_finish (&node_obstack);

 
   open_node (fgraph);
 
   open_node (fgraph);

-  /* Output a VCG formatted attributs list.  */

   output_node (&node, fgraph);
   output_node (&node, fgraph);

-  /* Save the node label.  */
-  fwrite (obstack_base (&node_obstack),
-         obstack_object_size (&node_obstack), 1, fgraph);

   close_node (fgraph);
 
   close_node (fgraph);
 

+  /* Output the edges.  */
+  print_actions (state, name);
+

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


@@ -255,10 +172,7 @@ print_state (int state)
 void
 print_graph (void)
 {
 void
 print_graph (void)
 {

-  int i;
-
-  if (!graph_flag)
-    return;
+  size_t i;

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


@@ -285,9 +199,11 @@ print_graph (void)
   open_graph (fgraph);
   output_graph (&graph, fgraph);
 
   open_graph (fgraph);
   output_graph (&graph, fgraph);
 

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

   for (i = 0; i < nstates; i++)
   for (i = 0; i < nstates; i++)

-    /* Output nodes & edges. */
-    print_state (i);
+    print_state (states[i]);
+  free_closure ();

 
   /* Close graph. */
   close_graph (&graph, fgraph);
 
   /* Close graph. */
   close_graph (&graph, fgraph);