* src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...

[bison.git] / src / output.c

diff --git a/src/output.c b/src/output.c
index 41961a5dfe7ecbf8417cc09d92aa1d2872280307..939775af4e11fdb755dffba864082fb00a2b58c2 100644 (file)
--- a/src/output.c
+++ b/src/output.c
@@ -1,5 +1,6 @@
-/* Output the generated parsing program for bison,
-   Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002
+/* Output the generated parsing program for Bison.
+
+   Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003

    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
    Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.


@@ -21,18 +22,22 @@
 
 
 #include "system.h"
 
 
 #include "system.h"

-#include "quotearg.h"
-#include "error.h"
-#include "subpipe.h"
-#include "getargs.h"
+
+#include <error.h>
+#include <get-errno.h>
+#include <quotearg.h>
+#include <subpipe.h>
+#include <timevar.h>
+
+#include "complain.h"

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

+#include "getargs.h"

 #include "gram.h"
 #include "gram.h"

-#include "complain.h"
+#include "muscle_tab.h"

 #include "output.h"
 #include "reader.h"
 #include "symtab.h"
 #include "tables.h"
 #include "output.h"
 #include "reader.h"
 #include "symtab.h"
 #include "tables.h"

-#include "muscle_tab.h"

 
 /* From src/scan-skel.l. */
 void scan_skel (FILE *);
 
 /* From src/scan-skel.l. */
 void scan_skel (FILE *);


@@ -63,6 +68,8 @@ Name (const char *name,                                                       \
 {                                                                      \
   Type min = first;                                                    \
   Type max = first;                                                    \
 {                                                                      \
   Type min = first;                                                    \
   Type max = first;                                                    \

+  long int lmin;                                                       \
+  long int lmax;                                                       \

   int i;                                                               \
   int j = 1;                                                           \
                                                                        \
   int i;                                                               \
   int j = 1;                                                           \
                                                                        \


@@ -86,67 +93,96 @@ Name (const char *name,                                                     \
   obstack_1grow (&format_obstack, 0);                                  \
   muscle_insert (name, obstack_finish (&format_obstack));              \
                                                                        \
   obstack_1grow (&format_obstack, 0);                                  \
   muscle_insert (name, obstack_finish (&format_obstack));              \
                                                                        \

+  lmin = min;                                                          \
+  lmax = max;                                                          \

   /* Build `NAME_min' and `NAME_max' in the obstack. */                        \
   obstack_fgrow1 (&format_obstack, "%s_min", name);                    \
   obstack_1grow (&format_obstack, 0);                                  \
   /* Build `NAME_min' and `NAME_max' in the obstack. */                        \
   obstack_fgrow1 (&format_obstack, "%s_min", name);                    \
   obstack_1grow (&format_obstack, 0);                                  \

-  MUSCLE_INSERT_LONG_INT (obstack_finish (&format_obstack),            \
-                         (long int) min);                              \
+  MUSCLE_INSERT_LONG_INT (obstack_finish (&format_obstack), lmin);     \

   obstack_fgrow1 (&format_obstack, "%s_max", name);                    \
   obstack_1grow (&format_obstack, 0);                                  \
   obstack_fgrow1 (&format_obstack, "%s_max", name);                    \
   obstack_1grow (&format_obstack, 0);                                  \

-  MUSCLE_INSERT_LONG_INT (obstack_finish (&format_obstack),            \
-                         (long int) max);                              \
+  MUSCLE_INSERT_LONG_INT (obstack_finish (&format_obstack), lmax);     \

 }
 
 GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_unsigned_int_table, unsigned int)
 GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_int_table, int)
 GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_short_table, short)
 }
 
 GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_unsigned_int_table, unsigned int)
 GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_int_table, int)
 GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_short_table, short)

-GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_base_table, base_t)
-GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_rule_number_table, rule_number_t)
-GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_symbol_number_table, symbol_number_t)
-GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_item_number_table, item_number_t)
-GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_state_number_table, state_number_t)
+GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_base_table, base_number)
+GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_rule_number_table, rule_number)
+GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_symbol_number_table, symbol_number)
+GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_item_number_table, item_number)
+GENERATE_MUSCLE_INSERT_TABLE(muscle_insert_state_number_table, state_number)

 
 
 
 

-/*-----------------------------------------------------------------.
-| Prepare the muscles related to the tokens: translate, tname, and |
-| toknum.                                                          |
-`-----------------------------------------------------------------*/
+/*----------------------------------------------------------------------.
+| Print to OUT a representation of FILENAME escaped both for C and M4.  |
+`----------------------------------------------------------------------*/

 
 static void
 
 static void

-prepare_tokens (void)
+escaped_file_name_output (FILE *out, char const *filename)

 {
 {

+  char const *p;
+  fprintf (out, "[[");
+
+  for (p = quotearg_style (c_quoting_style, filename); *p; p++)
+    switch (*p)
+      {
+      case '$': fputs ("$][", out); break;
+      case '@': fputs ("@@",  out); break;
+      case '[': fputs ("@{",  out); break;
+      case ']': fputs ("@}",  out); break;
+      default: fputc (*p, out); break;
+      }
+
+  fprintf (out, "]]");
+}
+
+
+/*------------------------------------------------------------------.
+| Prepare the muscles related to the symbols: translate, tname, and |
+| toknum.                                                           |
+`------------------------------------------------------------------*/
+
+static void
+prepare_symbols (void)
+{
+  MUSCLE_INSERT_INT ("tokens_number", ntokens);
+  MUSCLE_INSERT_INT ("nterms_number", nvars);
+  MUSCLE_INSERT_INT ("undef_token_number", undeftoken->number);
+  MUSCLE_INSERT_INT ("user_token_number_max", max_user_token_number);
+

   muscle_insert_symbol_number_table ("translate",
                                     token_translations,
                                     token_translations[0],
                                     1, max_user_token_number + 1);
 
   muscle_insert_symbol_number_table ("translate",
                                     token_translations,
                                     token_translations[0],
                                     1, max_user_token_number + 1);
 

+  /* tname -- token names.  */

   {
     int i;
   {
     int i;

-    int j = 0;
+    /* We assume that the table will be output starting at column 2. */
+    int j = 2;

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

-       /* Be sure not to use twice the same QUOTEARG slot:
-          SYMBOL_TAG_GET uses slot 0.  */
-       const char *cp =
-         quotearg_n_style (1, c_quoting_style,
-                           symbols[i]->tag);
-       /* Width of the next token, including the two quotes, the coma
-          and the space.  */
-       int strsize = strlen (cp) + 2;
-
-       if (j + strsize > 75)
+       const char *cp = quotearg_style (c_quoting_style, symbols[i]->tag);
+       /* Width of the next token, including the two quotes, the
+          comma and the space.  */
+       int width = strlen (cp) + 2;
+
+       if (j + width > 75)

          {
          {

-           obstack_sgrow (&format_obstack, "\n  ");
-           j = 2;
+           obstack_sgrow (&format_obstack, "\n ");
+           j = 1;

          }
 
          }
 

-       obstack_sgrow (&format_obstack, cp);
-       obstack_sgrow (&format_obstack, ", ");
-       j += strsize;
+       if (i)
+         obstack_1grow (&format_obstack, ' ');
+       MUSCLE_OBSTACK_SGROW (&format_obstack, cp);
+       obstack_1grow (&format_obstack, ',');
+       j += width;

       }
     /* Add a NULL entry to list of tokens (well, 0, as NULL might not be
        defined).  */
       }
     /* Add a NULL entry to list of tokens (well, 0, as NULL might not be
        defined).  */

-    obstack_sgrow (&format_obstack, "0");
+    obstack_sgrow (&format_obstack, " 0");

 
     /* Finish table and store. */
     obstack_1grow (&format_obstack, 0);
 
     /* Finish table and store. */
     obstack_1grow (&format_obstack, 0);


@@ -156,7 +192,7 @@ prepare_tokens (void)
   /* Output YYTOKNUM. */
   {
     int i;
   /* Output YYTOKNUM. */
   {
     int i;

-    int *values = XCALLOC (int, ntokens);
+    int *values = MALLOC (values, ntokens);

     for (i = 0; i < ntokens; ++i)
       values[i] = symbols[i]->user_token_number;
     muscle_insert_int_table ("toknum", values,
     for (i = 0; i < ntokens; ++i)
       values[i] = symbols[i]->user_token_number;
     muscle_insert_int_table ("toknum", values,


@@ -168,25 +204,25 @@ prepare_tokens (void)
 
 /*-------------------------------------------------------------.
 | Prepare the muscles related to the rules: rhs, prhs, r1, r2, |
 
 /*-------------------------------------------------------------.
 | Prepare the muscles related to the rules: rhs, prhs, r1, r2, |

-| rline, dprec, merger                                         |
+| rline, dprec, merger.                                        |

 `-------------------------------------------------------------*/
 
 static void
 prepare_rules (void)
 {
 `-------------------------------------------------------------*/
 
 static void
 prepare_rules (void)
 {

-  rule_number_t r;
+  rule_number r;

   unsigned int i = 0;
   unsigned int i = 0;

-  item_number_t *rhs = XMALLOC (item_number_t, nritems);
-  unsigned int *prhs = XMALLOC (unsigned int, nrules);
-  unsigned int *rline = XMALLOC (unsigned int, nrules);
-  symbol_number_t *r1 = XMALLOC (symbol_number_t, nrules);
-  unsigned int *r2 = XMALLOC (unsigned int, nrules);
-  short *dprec = XMALLOC (short, nrules);
-  short *merger = XMALLOC (short, nrules);
+  item_number *rhs = MALLOC (rhs, nritems);
+  unsigned int *prhs = MALLOC (prhs, nrules);
+  unsigned int *rline = MALLOC (rline, nrules);
+  symbol_number *r1 = MALLOC (r1, nrules);
+  unsigned int *r2 = MALLOC (r2, nrules);
+  short *dprec = MALLOC (dprec, nrules);
+  short *merger = MALLOC (merger, nrules);

 
   for (r = 0; r < nrules; ++r)
     {
 
   for (r = 0; r < nrules; ++r)
     {

-      item_number_t *rhsp = NULL;
+      item_number *rhsp = NULL;

       /* Index of rule R in RHS. */
       prhs[r] = i;
       /* RHS of the rule R. */
       /* Index of rule R in RHS. */
       prhs[r] = i;
       /* RHS of the rule R. */


@@ -199,13 +235,14 @@ prepare_rules (void)
       /* Separator in RHS. */
       rhs[i++] = -1;
       /* Line where rule was defined. */
       /* Separator in RHS. */
       rhs[i++] = -1;
       /* Line where rule was defined. */

-      rline[r] = rules[r].location.first_line;
-      /* Dynamic precedence (GLR) */
+      rline[r] = rules[r].location.start.line;
+      /* Dynamic precedence (GLR).  */

       dprec[r] = rules[r].dprec;
       dprec[r] = rules[r].dprec;

-      /* Merger-function index (GLR) */
+      /* Merger-function index (GLR).  */

       merger[r] = rules[r].merger;
     }
       merger[r] = rules[r].merger;
     }

-  assert (i == nritems);
+  if (i != nritems)
+    abort ();

 
   muscle_insert_item_number_table ("rhs", rhs, ritem[0], 1, nritems);
   muscle_insert_unsigned_int_table ("prhs", prhs, 0, 0, nrules);
 
   muscle_insert_item_number_table ("rhs", rhs, ritem[0], 1, nritems);
   muscle_insert_unsigned_int_table ("prhs", prhs, 0, 0, nrules);


@@ -215,6 +252,8 @@ prepare_rules (void)
   muscle_insert_short_table ("dprec", dprec, 0, 0, nrules);
   muscle_insert_short_table ("merger", merger, 0, 0, nrules);
 
   muscle_insert_short_table ("dprec", dprec, 0, 0, nrules);
   muscle_insert_short_table ("merger", merger, 0, 0, nrules);
 

+  MUSCLE_INSERT_INT ("rules_number", nrules);
+

   free (rhs);
   free (prhs);
   free (rline);
   free (rhs);
   free (prhs);
   free (rline);


@@ -231,13 +270,17 @@ prepare_rules (void)
 static void
 prepare_states (void)
 {
 static void
 prepare_states (void)
 {

-  state_number_t i;
-  symbol_number_t *values =
-    (symbol_number_t *) alloca (sizeof (symbol_number_t) * nstates);
+  state_number i;
+  symbol_number *values = MALLOC (values, nstates);

   for (i = 0; i < nstates; ++i)
     values[i] = states[i]->accessing_symbol;
   muscle_insert_symbol_number_table ("stos", values,
                                     0, 1, nstates);
   for (i = 0; i < nstates; ++i)
     values[i] = states[i]->accessing_symbol;
   muscle_insert_symbol_number_table ("stos", values,
                                     0, 1, nstates);

+  free (values);
+
+  MUSCLE_INSERT_INT ("last", high);
+  MUSCLE_INSERT_INT ("final_state_number", final_state->number);
+  MUSCLE_INSERT_INT ("states_number", nstates);

 }
 
 
 }
 
 


@@ -249,7 +292,7 @@ prepare_states (void)
 static void
 user_actions_output (FILE *out)
 {
 static void
 user_actions_output (FILE *out)
 {

-  rule_number_t r;
+  rule_number r;

 
   fputs ("m4_define([b4_actions], \n[[", out);
   for (r = 0; r < nrules; ++r)
 
   fputs ("m4_define([b4_actions], \n[[", out);
   for (r = 0; r < nrules; ++r)


@@ -257,11 +300,10 @@ user_actions_output (FILE *out)
       {
        fprintf (out, "  case %d:\n", r + 1);
 
       {
        fprintf (out, "  case %d:\n", r + 1);
 

-       if (!no_lines_flag)
-         fprintf (out, muscle_find ("linef"),
-                  rules[r].action_location.first_line,
-                  quotearg_style (c_quoting_style,
-                                  muscle_find ("filename")));
+       fprintf (out, "]b4_syncline([[%d]], ",
+                rules[r].action_location.start.line);
+       escaped_file_name_output (out, rules[r].action_location.start.file);
+       fprintf (out, ")[\n");

        fprintf (out, "    %s\n    break;\n\n",
                 rules[r].action);
       }
        fprintf (out, "    %s\n    break;\n\n",
                 rules[r].action);
       }


@@ -304,36 +346,37 @@ token_definitions_output (FILE *out)
   fputs ("m4_define([b4_tokens], \n[", out);
   for (i = 0; i < ntokens; ++i)
     {
   fputs ("m4_define([b4_tokens], \n[", out);
   for (i = 0; i < ntokens; ++i)
     {

-      symbol_t *symbol = symbols[i];
-      int number = symbol->user_token_number;
+      symbol *sym = symbols[i];
+      int number = sym->user_token_number;

 
       /* At this stage, if there are literal aliases, they are part of
         SYMBOLS, so we should not find symbols which are the aliases
         here.  */
 
       /* At this stage, if there are literal aliases, they are part of
         SYMBOLS, so we should not find symbols which are the aliases
         here.  */

-      assert (number != USER_NUMBER_ALIAS);
+      if (number == USER_NUMBER_ALIAS)
+       abort ();

 
       /* Skip error token.  */
 
       /* Skip error token.  */

-      if (symbol == errtoken)
+      if (sym == errtoken)

        continue;
 
       /* If this string has an alias, then it is necessarily the alias
         which is to be output.  */
        continue;
 
       /* If this string has an alias, then it is necessarily the alias
         which is to be output.  */

-      if (symbol->alias)
-       symbol = symbol->alias;
+      if (sym->alias)
+       sym = sym->alias;

 
       /* Don't output literal chars or strings (when defined only as a
         string).  Note that must be done after the alias resolution:
         think about `%token 'f' "f"'.  */
 
       /* Don't output literal chars or strings (when defined only as a
         string).  Note that must be done after the alias resolution:
         think about `%token 'f' "f"'.  */

-      if (symbol->tag[0] == '\'' || symbol->tag[0] == '\"')
+      if (sym->tag[0] == '\'' || sym->tag[0] == '\"')

        continue;
 
       /* Don't #define nonliteral tokens whose names contain periods
         or '$' (as does the default value of the EOF token).  */
        continue;
 
       /* Don't #define nonliteral tokens whose names contain periods
         or '$' (as does the default value of the EOF token).  */

-      if (strchr (symbol->tag, '.') || strchr (symbol->tag, '$'))
+      if (strchr (sym->tag, '.') || strchr (sym->tag, '$'))

        continue;
 
       fprintf (out, "%s[[[%s]], [%d]]",
        continue;
 
       fprintf (out, "%s[[[%s]], [%d]]",

-              first ? "" : ",\n", symbol->tag, number);
+              first ? "" : ",\n", sym->tag, number);

 
       first = 0;
     }
 
       first = 0;
     }


@@ -355,18 +398,20 @@ symbol_destructors_output (FILE *out)
   for (i = 0; i < nsyms; ++i)
     if (symbols[i]->destructor)
       {
   for (i = 0; i < nsyms; ++i)
     if (symbols[i]->destructor)
       {

-       symbol_t *symbol = symbols[i];
+       symbol *sym = symbols[i];

 
        /* Filename, lineno,
           Symbol-name, Symbol-number,
           destructor, typename. */
 
        /* Filename, lineno,
           Symbol-name, Symbol-number,
           destructor, typename. */

-       fprintf (out, "%s[[[%s]], [[%d]], [[%s]], [[%d]], [[%s]], [[%s]]]",
-                first ? "" : ",\n",
-                infile, symbol->destructor_location.first_line,
-                symbol->tag,
-                symbol->number,
-                symbol->destructor,
-                symbol->type_name);
+       fprintf (out, "%s[",
+                first ? "" : ",\n");
+       escaped_file_name_output (out, sym->destructor_location.start.file);
+       fprintf (out, ", [[%d]], [[%s]], [[%d]], [[%s]], [[%s]]]",
+                sym->destructor_location.start.line,
+                sym->tag,
+                sym->number,
+                sym->destructor,
+                sym->type_name);

 
        first = 0;
       }
 
        first = 0;
       }


@@ -386,20 +431,22 @@ symbol_printers_output (FILE *out)
 
   fputs ("m4_define([b4_symbol_printers], \n[", out);
   for (i = 0; i < nsyms; ++i)
 
   fputs ("m4_define([b4_symbol_printers], \n[", out);
   for (i = 0; i < nsyms; ++i)

-    if (symbols[i]->destructor)
+    if (symbols[i]->printer)

       {
       {

-       symbol_t *symbol = symbols[i];
+       symbol *sym = symbols[i];

 
        /* Filename, lineno,
           Symbol-name, Symbol-number,
           printer, typename. */
 
        /* Filename, lineno,
           Symbol-name, Symbol-number,
           printer, typename. */

-       fprintf (out, "%s[[[%s]], [[%d]], [[%s]], [[%d]], [[%s]], [[%s]]]",
-                first ? "" : ",\n",
-                infile, symbol->printer_location.first_line,
-                symbol->tag,
-                symbol->number,
-                symbol->printer,
-                symbol->type_name);
+       fprintf (out, "%s[",
+                first ? "" : ",\n");
+       escaped_file_name_output (out, sym->printer_location.start.file);
+       fprintf (out, ", [[%d]], [[%s]], [[%d]], [[%s]], [[%s]]]",
+                sym->printer_location.start.line,
+                sym->tag,
+                sym->number,
+                sym->printer,
+                sym->type_name);

 
        first = 0;
       }
 
        first = 0;
       }


@@ -449,7 +496,7 @@ prepare_actions (void)
      that case.  Nevertheless, it seems even better to be able to use
      the GLR skeletons even without the non-deterministic tables.  */
   muscle_insert_unsigned_int_table ("conflict_list_heads", conflict_table,
      that case.  Nevertheless, it seems even better to be able to use
      the GLR skeletons even without the non-deterministic tables.  */
   muscle_insert_unsigned_int_table ("conflict_list_heads", conflict_table,

-                                   conflict_table[0], 1, high+1);
+                                   conflict_table[0], 1, high + 1);

   muscle_insert_unsigned_int_table ("conflicting_rules", conflict_list,
                                    conflict_list[0], 1, conflict_list_cnt);
 }
   muscle_insert_unsigned_int_table ("conflicting_rules", conflict_list,
                                    conflict_list[0], 1, conflict_list_cnt);
 }


@@ -465,7 +512,7 @@ output_skeleton (void)
   FILE *in;
   FILE *out;
   int filter_fd[2];
   FILE *in;
   FILE *out;
   int filter_fd[2];

-  char const *argv[7];
+  char const *argv[6];

   pid_t pid;
 
   /* Compute the names of the package data dir and skeleton file.
   pid_t pid;
 
   /* Compute the names of the package data dir and skeleton file.


@@ -473,6 +520,8 @@ output_skeleton (void)
      installation.  A faulty installation can cause deadlock, so a
      cheap sanity check is worthwhile.  */
   char const m4sugar[] = "m4sugar/m4sugar.m4";
      installation.  A faulty installation can cause deadlock, so a
      cheap sanity check is worthwhile.  */
   char const m4sugar[] = "m4sugar/m4sugar.m4";

+  char *full_m4sugar;
+  char *full_cm4;

   char *full_path;
   char const *p;
   char const *m4 = (p = getenv ("M4")) ? p : M4;
   char *full_path;
   char const *p;
   char const *m4 = (p = getenv ("M4")) ? p : M4;


@@ -487,38 +536,36 @@ output_skeleton (void)
   strcpy (full_path, pkgdatadir);
   full_path[pkgdatadirlen] = '/';
   strcpy (full_path + pkgdatadirlen + 1, m4sugar);
   strcpy (full_path, pkgdatadir);
   full_path[pkgdatadirlen] = '/';
   strcpy (full_path + pkgdatadirlen + 1, m4sugar);

-  in = fopen (full_path, "r");
-  if (! in || fclose (in) != 0)
-    error (EXIT_FAILURE, errno, "%s", full_path);
+  full_m4sugar = xstrdup (full_path);
+  strcpy (full_path + pkgdatadirlen + 1, "c.m4");
+  full_cm4 = xstrdup (full_path);

   strcpy (full_path + pkgdatadirlen + 1, skeleton);
   strcpy (full_path + pkgdatadirlen + 1, skeleton);

+  xfclose (xfopen (full_m4sugar, "r"));

 
   /* Create an m4 subprocess connected to us via two pipes.  */
 
   if (trace_flag & trace_tools)
 
   /* Create an m4 subprocess connected to us via two pipes.  */
 
   if (trace_flag & trace_tools)

-    fprintf (stderr, "running: %s -I %s %s - %s\n",
-            m4, pkgdatadir, m4sugar, full_path);
+    fprintf (stderr, "running: %s %s - %s %s\n",
+            m4, full_m4sugar, full_cm4, full_path);

 
   argv[0] = m4;
 
   argv[0] = m4;

-  argv[1] = "-I";
-  argv[2] = pkgdatadir;
-  argv[3] = m4sugar;
-  argv[4] = "-";
-  argv[5] = full_path;
-  argv[6] = NULL;
+  argv[1] = full_m4sugar;
+  argv[2] = "-";
+  argv[3] = full_cm4;
+  argv[4] = full_path;
+  argv[5] = NULL;

 
   init_subpipe ();
   pid = create_subpipe (argv, filter_fd);
 
   init_subpipe ();
   pid = create_subpipe (argv, filter_fd);

+  free (full_m4sugar);
+  free (full_cm4);

   free (full_path);
 
   out = fdopen (filter_fd[0], "w");
   if (! out)
   free (full_path);
 
   out = fdopen (filter_fd[0], "w");
   if (! out)

-    error (EXIT_FAILURE, errno, "fdopen");
+    error (EXIT_FAILURE, get_errno (), "fdopen");

 
   /* Output the definitions of all the muscles.  */
 
   /* Output the definitions of all the muscles.  */

-
-  /* There are no comments, especially not `#': we do want M4 expansion
-     after `#': think of CPP macros!  */
-  fputs ("m4_changecom()\n", out);

   fputs ("m4_init()\n", out);
 
   user_actions_output (out);
   fputs ("m4_init()\n", out);
 
   user_actions_output (out);


@@ -531,18 +578,14 @@ output_skeleton (void)
 
   fputs ("m4_wrap([m4_divert_pop(0)])\n", out);
   fputs ("m4_divert_push(0)dnl\n", out);
 
   fputs ("m4_wrap([m4_divert_pop(0)])\n", out);
   fputs ("m4_divert_push(0)dnl\n", out);

-  if (ferror (out))
-    error (EXIT_FAILURE, 0, "pipe output error");

   xfclose (out);
 
   /* Read and process m4's output.  */
   timevar_push (TV_M4);
   in = fdopen (filter_fd[1], "r");
   if (! in)
   xfclose (out);
 
   /* Read and process m4's output.  */
   timevar_push (TV_M4);
   in = fdopen (filter_fd[1], "r");
   if (! in)

-    error (EXIT_FAILURE, errno, "fdopen");
+    error (EXIT_FAILURE, get_errno (), "fdopen");

   scan_skel (in);
   scan_skel (in);

-  if (ferror (in))
-    error (EXIT_FAILURE, 0, "pipe input error");

   xfclose (in);
   reap_subpipe (pid, m4);
   timevar_pop (TV_M4);
   xfclose (in);
   reap_subpipe (pid, m4);
   timevar_pop (TV_M4);


@@ -552,33 +595,15 @@ static void
 prepare (void)
 {
   /* Flags. */
 prepare (void)
 {
   /* Flags. */

-  MUSCLE_INSERT_INT ("locations_flag", locations_flag);
+  MUSCLE_INSERT_INT ("debug", debug_flag);

   MUSCLE_INSERT_INT ("defines_flag", defines_flag);
   MUSCLE_INSERT_INT ("error_verbose", error_verbose);
   MUSCLE_INSERT_INT ("defines_flag", defines_flag);
   MUSCLE_INSERT_INT ("error_verbose", error_verbose);

+  MUSCLE_INSERT_INT ("locations_flag", locations_flag);

   MUSCLE_INSERT_INT ("pure", pure_parser);
   MUSCLE_INSERT_INT ("pure", pure_parser);

-  MUSCLE_INSERT_INT ("debug", debug_flag);
+  MUSCLE_INSERT_INT ("synclines_flag", !no_lines_flag);

 
 

-  /* FIXME: This is wrong: the muscles should decide whether they hold
-     a copy or not, but the situation is too obscure currently.  */
+  /* File names.  */

   MUSCLE_INSERT_STRING ("prefix", spec_name_prefix ? spec_name_prefix : "yy");
   MUSCLE_INSERT_STRING ("prefix", spec_name_prefix ? spec_name_prefix : "yy");

-  MUSCLE_INSERT_STRING ("output_infix", output_infix ? output_infix : "");
-  MUSCLE_INSERT_STRING ("output_prefix", short_base_name);
-  MUSCLE_INSERT_STRING ("output_parser_name", parser_file_name);
-  MUSCLE_INSERT_STRING ("output_header_name", spec_defines_file);
-
-  /* Symbols. */
-  MUSCLE_INSERT_INT ("tokens_number", ntokens);
-  MUSCLE_INSERT_INT ("nterms_number", nvars);
-  MUSCLE_INSERT_INT ("undef_token_number", undeftoken->number);
-  MUSCLE_INSERT_INT ("user_token_number_max", max_user_token_number);
-
-  /* Rules. */
-  MUSCLE_INSERT_INT ("rules_number", nrules);
-
-  /* States. */
-  MUSCLE_INSERT_INT ("last", high);
-  MUSCLE_INSERT_INT ("final_state_number", final_state->number);
-  MUSCLE_INSERT_INT ("states_number", nstates);

 
   /* User Code.  */
   obstack_1grow (&pre_prologue_obstack, 0);
 
   /* User Code.  */
   obstack_1grow (&pre_prologue_obstack, 0);


@@ -589,14 +614,14 @@ prepare (void)
   /* Find the right skeleton file.  */
   if (!skeleton)
     {
   /* Find the right skeleton file.  */
   if (!skeleton)
     {

-      if (glr_parser)
+      if (glr_parser || nondeterministic_parser)

        skeleton = "glr.c";
       else
        skeleton = "yacc.c";
     }
 
   /* Parse the skeleton file and output the needed parsers.  */
        skeleton = "glr.c";
       else
        skeleton = "yacc.c";
     }
 
   /* Parse the skeleton file and output the needed parsers.  */

-  MUSCLE_INSERT_STRING ("skeleton", skeleton);
+  MUSCLE_INSERT_C_STRING ("skeleton", skeleton);

 }
 
 
 }
 
 


@@ -609,7 +634,7 @@ output (void)
 {
   obstack_init (&format_obstack);
 
 {
   obstack_init (&format_obstack);
 

-  prepare_tokens ();
+  prepare_symbols ();

   prepare_rules ();
   prepare_states ();
   prepare_actions ();
   prepare_rules ();
   prepare_states ();
   prepare_actions ();