* src/getargs.c (usage): Back out yesterday's modification of the

[bison.git] / src / output.c

diff --git a/src/output.c b/src/output.c
index 51541822c44c7c4b7178554a416f9ec00f223122..6a02bb3306ef42b69b16f3fdba0defa3a69df323 100644 (file)
--- 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
-   Free Software Foundation, Inc.
+   Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
+   2005, 2006 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -20,7 +20,7 @@
    Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
    02110-1301, USA.  */
 
-
+#include <config.h>
 #include "system.h"
 
 #include <error.h>
@@ -36,18 +36,13 @@
 #include "muscle_tab.h"
 #include "output.h"
 #include "reader.h"
+#include "scan-skel.h"
 #include "symtab.h"
 #include "tables.h"
 
-/* From src/scan-skel.l. */
-void scan_skel (FILE *);
-
 
 static struct obstack format_obstack;
 
-bool error_verbose = false;
-
-
 
 /*-------------------------------------------------------------------.
 | Create a function NAME which associates to the muscle NAME the     |
@@ -145,6 +140,7 @@ escaped_output (FILE *out, char const *string)
 static void
 prepare_symbols (void)
 {
+  MUSCLE_INSERT_BOOL ("token_table", token_table_flag);
   MUSCLE_INSERT_INT ("tokens_number", ntokens);
   MUSCLE_INSERT_INT ("nterms_number", nvars);
   MUSCLE_INSERT_INT ("undef_token_number", undeftoken->number);
@@ -240,8 +236,7 @@ prepare_rules (void)
       /* Merger-function index (GLR).  */
       merger[r] = rules[r].merger;
     }
-  if (i != nritems)
-    abort ();
+  assert (i == nritems);
 
   muscle_insert_item_number_table ("rhs", rhs, ritem[0], 1, nritems);
   muscle_insert_unsigned_int_table ("prhs", prhs, 0, 0, nrules);
@@ -352,8 +347,7 @@ token_definitions_output (FILE *out)
       /* At this stage, if there are literal aliases, they are part of
         SYMBOLS, so we should not find symbols which are the aliases
         here.  */
-      if (number == USER_NUMBER_ALIAS)
-       abort ();
+      assert (number != USER_NUMBER_ALIAS);
 
       /* Skip error token.  */
       if (sym == errtoken)
@@ -516,7 +510,6 @@ output_skeleton (void)
      cheap sanity check is worthwhile.  */
   char const m4sugar[] = "m4sugar/m4sugar.m4";
   char *full_m4sugar;
-  char *full_cm4;
   char *full_skeleton;
   char const *p;
   char const *m4 = (p = getenv ("M4")) ? p : M4;
@@ -532,33 +525,31 @@ output_skeleton (void)
   full_skeleton[pkgdatadirlen] = '/';
   strcpy (full_skeleton + pkgdatadirlen + 1, m4sugar);
   full_m4sugar = xstrdup (full_skeleton);
-  strcpy (full_skeleton + pkgdatadirlen + 1, "c.m4");
-  full_cm4 = xstrdup (full_skeleton);
   strcpy (full_skeleton + pkgdatadirlen + 1, skeleton);
   xfclose (xfopen (full_m4sugar, "r"));
 
   /* Create an m4 subprocess connected to us via two pipes.  */
 
   if (trace_flag & trace_tools)
-    fprintf (stderr, "running: %s %s - %s %s\n",
-            m4, full_m4sugar, full_cm4, full_skeleton);
+    fprintf (stderr, "running: %s %s - %s\n",
+            m4, full_m4sugar, full_skeleton);
 
   argv[0] = m4;
   argv[1] = full_m4sugar;
   argv[2] = "-";
-  argv[3] = full_cm4;
-  argv[4] = full_skeleton;
+  argv[3] = full_skeleton;
+  argv[4] = trace_flag & trace_m4 ? "-dV" : NULL;
   argv[5] = NULL;
 
   init_subpipe ();
   pid = create_subpipe (argv, filter_fd);
   free (full_m4sugar);
-  free (full_cm4);
   free (full_skeleton);
 
   out = fdopen (filter_fd[0], "w");
   if (! out)
-    error (EXIT_FAILURE, get_errno (), "fdopen");
+    error (EXIT_FAILURE, get_errno (),
+          "fdopen");
 
   /* Output the definitions of all the muscles.  */
   fputs ("m4_init()\n", out);
@@ -577,9 +568,11 @@ output_skeleton (void)
 
   /* Read and process m4's output.  */
   timevar_push (TV_M4);
+  end_of_output_subpipe (pid, filter_fd);
   in = fdopen (filter_fd[1], "r");
   if (! in)
-    error (EXIT_FAILURE, get_errno (), "fdopen");
+    error (EXIT_FAILURE, get_errno (),
+          "fdopen");
   scan_skel (in);
   xfclose (in);
   reap_subpipe (pid, m4);
@@ -590,15 +583,25 @@ static void
 prepare (void)
 {
   /* Flags. */
-  MUSCLE_INSERT_BOOL ("debug", debug_flag);
+  MUSCLE_INSERT_BOOL ("debug_flag", debug_flag);
   MUSCLE_INSERT_BOOL ("defines_flag", defines_flag);
-  MUSCLE_INSERT_BOOL ("error_verbose", error_verbose);
+  MUSCLE_INSERT_BOOL ("error_verbose_flag", error_verbose);
   MUSCLE_INSERT_BOOL ("locations_flag", locations_flag);
-  MUSCLE_INSERT_BOOL ("pure", pure_parser);
+  MUSCLE_INSERT_BOOL ("pure_flag", pure_parser);
   MUSCLE_INSERT_BOOL ("synclines_flag", !no_lines_flag);
 
   /* File names.  */
   MUSCLE_INSERT_STRING ("prefix", spec_name_prefix ? spec_name_prefix : "yy");
+#define DEFINE(Name) MUSCLE_INSERT_STRING (#Name, Name ? Name : "")
+  DEFINE (dir_prefix);
+  DEFINE (parser_file_name);
+  DEFINE (spec_defines_file);
+  DEFINE (spec_file_prefix);
+  DEFINE (spec_graph_file);
+  DEFINE (spec_name_prefix);
+  DEFINE (spec_outfile);
+  DEFINE (spec_verbose_file);
+#undef DEFINE
 
   /* User Code.  */
   obstack_1grow (&pre_prologue_obstack, 0);
@@ -615,8 +618,12 @@ prepare (void)
        skeleton = "yacc.c";
     }
 
-  /* Parse the skeleton file and output the needed parsers.  */
-  MUSCLE_INSERT_C_STRING ("skeleton", skeleton);
+  /* About the skeletons. */
+  {
+    char const *pkgdatadir = getenv ("BISON_PKGDATADIR");
+    MUSCLE_INSERT_STRING ("pkgdatadir", pkgdatadir ? pkgdatadir : PKGDATADIR);
+    MUSCLE_INSERT_C_STRING ("skeleton", skeleton);
+  }
 }