X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/3eb4f1a3e62807125a815dc572da9204b5b51865..f6b561d9f9cbc6fc95bbb86518372a5cb52f45a6:/src/print_graph.c

diff --git a/src/print_graph.c b/src/print_graph.c
index 61d36512..ca1dc24e 100644
--- a/src/print_graph.c
+++ b/src/print_graph.c
@@ -18,6 +18,7 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
+#include <quotearg.h>
 #include "system.h"
 
 #include "LR0.h"
@@ -54,7 +55,7 @@ print_core (struct obstack *oout, state *s)
       snritems = nitemset;
     }
 
-  obstack_fgrow1 (oout, "%d", s->number);
+  obstack_printf (oout, "state %d\\n", s->number);
   for (i = 0; i < snritems; i++)
     {
       item_number *sp;
@@ -68,15 +69,15 @@ print_core (struct obstack *oout, state *s)
 
       r = item_number_as_rule_number (*sp);
 
-      obstack_fgrow1 (oout, "\n%s -> ", rules[r].lhs->tag);
+      obstack_printf (oout, "%d: %s -> ", r, escape (rules[r].lhs->tag));
 
       for (sp = rules[r].rhs; sp < sp1; sp++)
-        obstack_fgrow1 (oout, "%s ", symbols[*sp]->tag);
+        obstack_printf (oout, "%s ", escape (symbols[*sp]->tag));
 
       obstack_1grow (oout, '.');
 
       for (/* Nothing */; *sp >= 0; ++sp)
-        obstack_fgrow1 (oout, " %s", symbols[*sp]->tag);
+        obstack_printf (oout, " %s", escape (symbols[*sp]->tag));
 
       /* Experimental feature: display the lookahead tokens. */
       if (report_flag & report_lookahead_tokens
@@ -92,15 +93,17 @@ print_core (struct obstack *oout, state *s)
               bitset_iterator biter;
               int k;
               char const *sep = "";
-              obstack_sgrow (oout, "[");
+              obstack_1grow (oout, '[');
               BITSET_FOR_EACH (biter, reds->lookahead_tokens[redno], k, 0)
                 {
-                  obstack_fgrow2 (oout, "%s%s", sep, symbols[k]->tag);
+                  obstack_sgrow (oout, sep);
+                  obstack_sgrow (oout, escape (symbols[k]->tag));
                   sep = ", ";
                 }
-              obstack_sgrow (oout, "]");
+              obstack_1grow (oout, ']');
             }
         }
+      obstack_sgrow (oout, "\\l");
     }
 }
 
@@ -117,6 +120,9 @@ print_actions (state const *s, FILE *fgraph)
 
   transitions const *trans = s->transitions;
 
+  /* Display reductions. */
+  output_red (s, s->reductions, fgraph);
+
   if (!trans->num && !s->reductions)
     return;
 
@@ -155,8 +161,7 @@ print_state (state *s, FILE *fgraph)
   /* A node's label contains its items.  */
   obstack_init (&node_obstack);
   print_core (&node_obstack, s);
-  obstack_1grow (&node_obstack, '\0');
-  output_node (s->number, obstack_finish (&node_obstack), fgraph);
+  output_node (s->number, obstack_finish0 (&node_obstack), fgraph);
   obstack_free (&node_obstack, 0);
 
   /* Output the edges.  */