X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/0e021770cc023c6a2e7ae132a3aab55bc7cbc058..9b33de72cd2469bedac2b5f0a48a8782571ea9db:/src/output.c

diff --git a/src/output.c b/src/output.c
index 4608a2fa..ef7683ec 100644
--- a/src/output.c
+++ b/src/output.c
@@ -1,7 +1,7 @@
 /* Output the generated parsing program for Bison.
 
    Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
-   2005, 2006 Free Software Foundation, Inc.
+   2005, 2006, 2007 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -373,70 +373,41 @@ token_definitions_output (FILE *out)
 }
 
 
-/*---------------------------------------.
-| Output the symbol destructors to OUT.  |
-`---------------------------------------*/
+/*---------------------------------------------------.
+| Output the symbol destructors or printers to OUT.  |
+`---------------------------------------------------*/
 
 static void
-symbol_destructors_output (FILE *out)
+symbol_code_props_output (FILE *out, char const *what,
+                          code_props const *(*get)(symbol const *))
 {
   int i;
   char const *sep = "";
 
-  fputs ("m4_define([b4_symbol_destructors], \n[", out);
+  fputs ("m4_define([b4_symbol_", out);
+  fputs (what, out);
+  fputs ("], \n[", out);
   for (i = 0; i < nsyms; ++i)
-    if (symbol_destructor_get (symbols[i]))
-      {
-	symbol *sym = symbols[i];
-
-	/* Filename, lineno,
-	   Symbol-name, Symbol-number,
-	   destructor, optional typename.  */
-	fprintf (out, "%s[", sep);
-	sep = ",\n";
-	escaped_output (out, symbol_destructor_location_get (sym).start.file);
-	fprintf (out, ", %d, ",
-		 symbol_destructor_location_get (sym).start.line);
-	escaped_output (out, sym->tag);
-	fprintf (out, ", %d, [[%s]]", sym->number,
-		 symbol_destructor_get (sym));
-	if (sym->type_name)
-	  fprintf (out, ", [[%s]]", sym->type_name);
-	fputc (']', out);
-      }
-  fputs ("])\n\n", out);
-}
-
-
-/*------------------------------------.
-| Output the symbol printers to OUT.  |
-`------------------------------------*/
-
-static void
-symbol_printers_output (FILE *out)
-{
-  int i;
-  char const *sep = "";
-
-  fputs ("m4_define([b4_symbol_printers], \n[", out);
-  for (i = 0; i < nsyms; ++i)
-    if (symbol_printer_get (symbols[i]))
-      {
-	symbol *sym = symbols[i];
-
-	/* Filename, lineno,
-	   Symbol-name, Symbol-number,
-	   printer, optional typename.  */
-	fprintf (out, "%s[", sep);
-	sep = ",\n";
-	escaped_output (out, symbol_printer_location_get (sym).start.file);
-	fprintf (out, ", %d, ", symbol_printer_location_get (sym).start.line);
-	escaped_output (out, sym->tag);
-	fprintf (out, ", %d, [[%s]]", sym->number, symbol_printer_get (sym));
-	if (sym->type_name)
-	  fprintf (out, ", [[%s]]", sym->type_name);
-	fputc (']', out);
-      }
+    {
+      symbol *sym = symbols[i];
+      char const *code = (*get) (sym)->code;
+      if (code)
+        {
+          location loc = (*get) (sym)->location;
+          /* Filename, lineno,
+             Symbol-name, Symbol-number,
+             code, optional typename.  */
+          fprintf (out, "%s[", sep);
+          sep = ",\n";
+          escaped_output (out, loc.start.file);
+          fprintf (out, ", %d, ", loc.start.line);
+          escaped_output (out, sym->tag);
+          fprintf (out, ", %d, [[%s]]", sym->number, code);
+          if (sym->type_name)
+            fprintf (out, ", [[%s]]", sym->type_name);
+          fputc (']', out);
+        }
+    }
   fputs ("])\n\n", out);
 }
 
@@ -521,13 +492,16 @@ output_skeleton (void)
   full_skeleton = xmalloc (pkgdatadirlen + 1
 			   + (skeleton_size < sizeof m4sugar
 			      ? sizeof m4sugar : skeleton_size));
-  strcpy (full_skeleton, pkgdatadir);
+  strncpy (full_skeleton, pkgdatadir, pkgdatadirlen);
   full_skeleton[pkgdatadirlen] = '/';
   strcpy (full_skeleton + pkgdatadirlen + 1, m4sugar);
   full_m4sugar = xstrdup (full_skeleton);
   strcpy (full_skeleton + pkgdatadirlen + 1, m4bison);
   full_m4bison = xstrdup (full_skeleton);
-  strcpy (full_skeleton + pkgdatadirlen + 1, skeleton);
+  if (strchr (skeleton, '/'))
+    strcpy (full_skeleton, skeleton);
+  else
+    strcpy (full_skeleton + pkgdatadirlen + 1, skeleton);
   xfclose (xfopen (full_m4sugar, "r"));
 
   /* Create an m4 subprocess connected to us via two pipes.  */
@@ -561,13 +535,10 @@ output_skeleton (void)
   user_actions_output (out);
   merger_output (out);
   token_definitions_output (out);
-  symbol_destructors_output (out);
-  symbol_printers_output (out);
+  symbol_code_props_output (out, "destructors", &symbol_destructor_get);
+  symbol_code_props_output (out, "printers", &symbol_printer_get);
 
   muscles_m4_output (out);
-
-  fputs ("m4_wrap([m4_divert_pop(0)])\n", out);
-  fputs ("m4_divert_push(0)dnl\n", out);
   xfclose (out);
 
   /* Read and process m4's output.  */
@@ -586,6 +557,15 @@ output_skeleton (void)
 static void
 prepare (void)
 {
+  /* BISON_USE_PUSH_FOR_PULL is for the test suite and should not be documented
+     for the user.  */
+  char const *use_push_for_pull_env = getenv ("BISON_USE_PUSH_FOR_PULL");
+  bool use_push_for_pull_flag = false;
+  if (use_push_for_pull_env != NULL
+      && use_push_for_pull_env[0] != '\0'
+      && 0 != strcmp (use_push_for_pull_env, "0"))
+    use_push_for_pull_flag = true;
+
   /* Flags. */
   MUSCLE_INSERT_BOOL ("debug_flag", debug_flag);
   MUSCLE_INSERT_BOOL ("defines_flag", defines_flag);
@@ -593,10 +573,12 @@ prepare (void)
   MUSCLE_INSERT_BOOL ("glr_flag", glr_parser);
   MUSCLE_INSERT_BOOL ("locations_flag", locations_flag);
   MUSCLE_INSERT_BOOL ("nondeterministic_flag", nondeterministic_parser);
+  MUSCLE_INSERT_BOOL ("pull_flag", pull_parser);
   MUSCLE_INSERT_BOOL ("pure_flag", pure_parser);
   MUSCLE_INSERT_BOOL ("push_flag", push_parser);
   MUSCLE_INSERT_BOOL ("synclines_flag", !no_lines_flag);
   MUSCLE_INSERT_BOOL ("tag_seen_flag", tag_seen);
+  MUSCLE_INSERT_BOOL ("use_push_for_pull_flag", use_push_for_pull_flag);
   MUSCLE_INSERT_BOOL ("yacc_flag", yacc_flag);
 
   /* File names.  */
@@ -616,12 +598,6 @@ prepare (void)
   DEFINE (spec_verbose_file);
 #undef DEFINE
 
-  /* User Code.  */
-  obstack_1grow (&pre_prologue_obstack, 0);
-  obstack_1grow (&post_prologue_obstack, 0);
-  muscle_insert ("pre_prologue", obstack_finish (&pre_prologue_obstack));
-  muscle_insert ("post_prologue", obstack_finish (&post_prologue_obstack));
-
   /* Find the right skeleton file, and add muscles about the skeletons.  */
   if (skeleton)
     MUSCLE_INSERT_C_STRING ("skeleton", skeleton);
@@ -660,6 +636,4 @@ output (void)
   output_skeleton ();
 
   obstack_free (&format_obstack, NULL);
-  obstack_free (&pre_prologue_obstack, NULL);
-  obstack_free (&post_prologue_obstack, NULL);
 }