Update

[bison.git] / src / output.c

diff --git a/src/output.c b/src/output.c
index 27fcae4f2aadaa68ec07c441263f972aac876b14..eecb8c68cf44dc5f02309d62c21b96bb236dcc3c 100644 (file)
--- a/src/output.c
+++ b/src/output.c
@@ -1,5 +1,5 @@
 /* Output the generated parsing program for bison,
 /* Output the generated parsing program for bison,

-   Copyright 1984, 1986, 1989, 1992, 2000 Free Software Foundation, Inc.
+   Copyright 1984, 1986, 1989, 1992, 2000, 2001 Free Software Foundation, Inc.

 
    This file is part of Bison, the GNU Compiler Compiler.
 
 
    This file is part of Bison, the GNU Compiler Compiler.
 


@@ -103,11 +103,10 @@
 #include "lalr.h"
 #include "reader.h"
 #include "conflicts.h"
 #include "lalr.h"
 #include "reader.h"
 #include "conflicts.h"

+#include "macrotab.h"

 
 extern void berror PARAMS((const char *));
 
 
 extern void berror PARAMS((const char *));
 

-
-

 static int nvectors;
 static int nentries;
 static short **froms;
 static int nvectors;
 static int nentries;
 static short **froms;


@@ -124,208 +123,54 @@ static short *check;
 static int lowzero;
 static int high;
 
 static int lowzero;
 static int high;
 

+struct obstack macro_obstack;
+struct obstack output_obstack;

 
 

+/* FIXME. */

 
 static inline void
 
 static inline void

-output_short_or_char_table (struct obstack *oout,
-                           const char *comment,
-                           const char *type,
-                           const char *table_name,
-                           short *short_table,
-                           short first_value,
-                           short begin, short end)
+output_table_data (struct obstack *oout, 
+                  short *table_data, 
+                  short first, 
+                  short begin, 
+                  short end)

 {
 {

-  int i, j;
-
-  if (comment)
-    obstack_fgrow1 (oout, "/* %s. */\n", comment);
-
-  obstack_fgrow3 (oout, "static const %s %s[] =\n{\n  %6d",
-                 type, table_name, first_value);
-
-  j = 1;
-  for (i = begin; i < end; i++)
+  int i;
+  int j = 1;
+  
+  obstack_fgrow1 (oout, "%6d", first);
+  for (i = begin; i < end; ++i)

     {
       obstack_1grow (oout, ',');
     {
       obstack_1grow (oout, ',');

-

       if (j >= 10)
        {
       if (j >= 10)
        {

-         obstack_grow_literal_string (oout, "\n  ");
+         obstack_sgrow (oout, "\n  ");

          j = 1;
        }
       else
          j = 1;
        }
       else

-       {
-         j++;
-       }
-
-      obstack_fgrow1 (oout, "%6d", short_table[i]);
-    }
-
-  obstack_grow_literal_string (oout, "\n};\n");
-}
-
-
-static inline void
-output_short_table (struct obstack *oout,
-                   const char *comment,
-                   const char *table_name,
-                   short *short_table,
-                   short first_value,
-                   short begin, short end)
-{
-  output_short_or_char_table (oout, comment, "short", table_name, short_table,
-                             first_value, begin, end);
-}
-
-
-/*--------------------------------------------------------------.
-| output_headers -- Output constant strings to the beginning of |
-| certain files.                                                |
-`--------------------------------------------------------------*/
-
-/* Don't put the `%s' insides quotes, since it quotearg puts them. */
-
-#define        GUARDSTR        \
-"\n\
-#include %s\n\
-extern int yyerror;\n\
-extern int yycost;\n\
-extern char * yymsg;\n\
-extern YYSTYPE yyval;\n\
-\n\
-yyguard(n, yyvsp, yylsp)\n\
-register int n;\n\
-register YYSTYPE *yyvsp;\n\
-register YYLTYPE *yylsp;\n\
-{\n\
-  yyerror = 0;\n\
-  yycost = 0;\n\
-  yymsg = 0;\n\
-  switch (n)\n\
-    {"
-
-#define        ACTSTR          \
-"\n\
-#include %s\n\
-extern YYSTYPE yyval;\n\
-extern int yychar;\n\
-\n\
-yyaction(n, yyvsp, yylsp)\n\
-register int n;\n\
-register YYSTYPE *yyvsp;\n\
-register YYLTYPE *yylsp;\n\
-{\n\
-  switch (n)\n\
-    {"
-
-#define        ACTSTR_SIMPLE   "\n  switch (yyn) {\n"
-
-void
-output_headers (void)
-{
-  char *attrsfile_quoted = quotearg_style (c_quoting_style, attrsfile);
-
-  if (semantic_parser)
-    fprintf (fguard, GUARDSTR, attrsfile_quoted);
-
-  if (no_parser_flag)
-    return;
-
-  if (semantic_parser)
-    obstack_fgrow1 (&action_obstack, ACTSTR, attrsfile_quoted);
-  else
-    obstack_grow_literal_string (&action_obstack, ACTSTR_SIMPLE);
-
-/*  if (semantic_parser)       JF moved this below
-    fprintf(ftable, "#include \"%s\"\n", attrsfile);
-  fprintf(ftable, "#include <stdio.h>\n\n");
-*/
-
-  /* Rename certain symbols if -p was specified.  */
-  if (spec_name_prefix)
-    {
-      obstack_fgrow1 (&table_obstack,
-                     "#define yyparse %sparse\n", spec_name_prefix);
-      obstack_fgrow1 (&table_obstack,
-                     "#define yylex %slex\n", spec_name_prefix);
-      obstack_fgrow1 (&table_obstack,
-                     "#define yyerror %serror\n", spec_name_prefix);
-      obstack_fgrow1 (&table_obstack,
-                     "#define yylval %slval\n", spec_name_prefix);
-      obstack_fgrow1 (&table_obstack,
-                     "#define yychar %schar\n", spec_name_prefix);
-      obstack_fgrow1 (&table_obstack,
-                     "#define yydebug %sdebug\n", spec_name_prefix);
-      obstack_fgrow1 (&table_obstack,
-                     "#define yynerrs %snerrs\n", spec_name_prefix);
+       ++j;
+      obstack_fgrow1 (oout, "%6d", table_data[i]);

     }
     }

+  obstack_1grow (oout, 0);

 }
 
 
 }
 
 

-/*-------------------------------------------------------.
-| Output constant strings to the ends of certain files.  |
-`-------------------------------------------------------*/
-
-void
-output_trailers (void)
-{
-  if (semantic_parser)
-    fprintf (fguard, "\n    }\n}\n");
-
-  obstack_1grow (&action_obstack, '\n');
-
-  if (no_parser_flag)
-    return;
-
-  if (semantic_parser)
-    obstack_grow_literal_string (&action_obstack, "    }\n");
-
-  obstack_grow_literal_string (&action_obstack, "}\n");
-}
-
-
-

 static void
 output_token_translations (void)
 {
 static void
 output_token_translations (void)
 {

-  obstack_grow_literal_string (&table_obstack, "\
-\n\
-/* YYRANSLATE(YYLEX) -- Bison token number corresponding to YYLEX. */\n");
-
-  if (translations)
-    {
-      obstack_fgrow2 (&table_obstack,
-      "#define YYTRANSLATE(x) ((unsigned)(x) <= %d ? yytranslate[x] : %d)\
-\n\
-\n",
-              max_user_token_number, nsyms);
-
-      output_short_or_char_table (&table_obstack,
-            "YYRANSLATE[YYLEX] -- Bison token number corresponding to YYLEX",
-                   ntokens < 127 ? "char" : "short",
-                   "yytranslate", token_translations,
-                   0, 1, max_user_token_number + 1);
-    }
-  else
-    {
-      obstack_grow_literal_string (&table_obstack,
-                                  "\n#define YYTRANSLATE(x) (x)\n");
-    }
+  output_table_data (&output_obstack, token_translations, 
+                    0, 1, max_user_token_number + 1);
+  macro_insert ("translate", obstack_finish (&output_obstack));

 }
 
 
 static void
 output_gram (void)
 {
 }
 
 
 static void
 output_gram (void)
 {

-  /* With the ordinary parser,
-     yyprhs and yyrhs are needed only for yydebug. */
-  /* With the no_parser option, all tables are generated */
-  if (!semantic_parser && !no_parser_flag)
-    obstack_grow_literal_string (&table_obstack, "\n#if YYDEBUG != 0\n");
-
-  output_short_table (&table_obstack, NULL, "yyprhs", rrhs,
-                     0, 1, nrules + 1);
-
+  output_table_data (&output_obstack, rrhs, 
+                    0, 1, nrules + 1);
+  macro_insert ("prhs", obstack_finish (&output_obstack));
+  

   {
     size_t yyrhs_size = 1;
     short *yyrhs, *sp;
   {
     size_t yyrhs_size = 1;
     short *yyrhs, *sp;


@@ -338,21 +183,26 @@ output_gram (void)
     for (sp = ritem + 1, i = 1; *sp; ++sp, ++i)
       yyrhs[i] = *sp > 0 ? *sp : 0;
 
     for (sp = ritem + 1, i = 1; *sp; ++sp, ++i)
       yyrhs[i] = *sp > 0 ? *sp : 0;
 

-    output_short_table (&table_obstack, NULL, "yyrhs", yyrhs,
-                       ritem[0], 1, yyrhs_size);
+    output_table_data (&output_obstack, yyrhs, 
+                      ritem[0], 1, yyrhs_size);
+    macro_insert ("rhs", obstack_finish (&output_obstack));
+

     XFREE (yyrhs);
   }
 
     XFREE (yyrhs);
   }
 

+#if 0

   if (!semantic_parser && !no_parser_flag)
   if (!semantic_parser && !no_parser_flag)

-    obstack_grow_literal_string (&table_obstack, "\n#endif\n");
+    obstack_sgrow (&table_obstack, "\n#endif\n");
+#endif

 }
 
 
 static void
 output_stos (void)
 {
 }
 
 
 static void
 output_stos (void)
 {

-  output_short_table (&table_obstack, NULL, "yystos", accessing_symbol,
-                     0, 1, nstates);
+  output_table_data (&output_obstack, accessing_symbol, 
+                    0, 1, nstates);
+  macro_insert ("stos", obstack_finish (&output_obstack));

 }
 
 
 }
 
 


@@ -363,34 +213,9 @@ output_rule_data (void)
   int j;
   short *short_tab = NULL;
 
   int j;
   short *short_tab = NULL;
 

-  obstack_grow_literal_string (&table_obstack, "\n\
-#if YYDEBUG != 0\n");
-
-  output_short_table (&table_obstack,
-           "YYRLINE[YYN] -- source line where rule number YYN was defined",
-                     "yyrline", rline,
-                     0, 1, nrules + 1);
-
-  obstack_grow_literal_string (&table_obstack, "#endif\n\n");
-
-  if (token_table_flag || no_parser_flag)
-    {
-      obstack_fgrow1 (&table_obstack, "#define YYNTOKENS %d\n", ntokens);
-      obstack_fgrow1 (&table_obstack, "#define YYNNTS %d\n", nvars);
-      obstack_fgrow1 (&table_obstack, "#define YYNRULES %d\n", nrules);
-      obstack_fgrow1 (&table_obstack, "#define YYNSTATES %d\n", nstates);
-      obstack_fgrow1 (&table_obstack, "#define YYMAXUTOK %d\n\n",
-                     max_user_token_number);
-    }
-
-  /* Output the table of symbol names.  */
-  if (!token_table_flag && !no_parser_flag)
-    obstack_grow_literal_string (&table_obstack,
-                         "\n#if YYDEBUG != 0 || defined YYERROR_VERBOSE\n\n");
-  obstack_grow_literal_string (&table_obstack, "\
-/* YYTNAME[TOKEN_NUM] -- String name of the token TOKEN_NUM. */\n");
-  obstack_grow_literal_string (&table_obstack,
-          "static const char *const yytname[] =\n{\n  ");
+  output_table_data (&output_obstack, rline,
+                    0, 1, nrules + 1);
+  macro_insert ("rline", obstack_finish (&output_obstack));

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


@@ -413,92 +238,61 @@ output_rule_data (void)
 
       if (j + strsize > 75)
        {
 
       if (j + strsize > 75)
        {

-         obstack_grow_literal_string (&table_obstack, "\n  ");
+         obstack_sgrow (&output_obstack, "\n  ");

          j = 2;
        }
 
          j = 2;
        }
 

-      obstack_1grow (&table_obstack, '\"');
+      obstack_1grow (&output_obstack, '\"');

       for (p = tags[i]; p && *p; p++)
        {
          if (*p == '"' || *p == '\\')
       for (p = tags[i]; p && *p; p++)
        {
          if (*p == '"' || *p == '\\')

-           {
-             obstack_fgrow1 (&table_obstack, "\\%c", *p);
-           }
+           obstack_fgrow1 (&output_obstack, "\\%c", *p);

          else if (*p == '\n')
          else if (*p == '\n')

-           {
-             obstack_grow_literal_string (&table_obstack, "\\n");
-           }
+           obstack_sgrow (&output_obstack, "\\n");

          else if (*p == '\t')
          else if (*p == '\t')

-           {
-             obstack_grow_literal_string (&table_obstack, "\\t");
-           }
+           obstack_sgrow (&output_obstack, "\\t");

          else if (*p == '\b')
          else if (*p == '\b')

-           {
-             obstack_grow_literal_string (&table_obstack, "\\b");
-           }
+           obstack_sgrow (&output_obstack, "\\b");

          else if (*p < 040 || *p >= 0177)
          else if (*p < 040 || *p >= 0177)

-           {
-             obstack_fgrow1 (&table_obstack, "\\%03o", *p);
-           }
+           obstack_fgrow1 (&output_obstack, "\\%03o", *p);

          else
          else

-           {
-             obstack_1grow (&table_obstack, *p);
-           }
+           obstack_1grow (&output_obstack, *p);

        }
 
        }
 

-      obstack_grow_literal_string (&table_obstack, "\", ");
+      obstack_sgrow (&output_obstack, "\", ");

       j += strsize;
     }
   /* add a NULL entry to list of tokens */
       j += strsize;
     }
   /* add a NULL entry to list of tokens */

-  obstack_grow_literal_string (&table_obstack, "NULL\n};\n");
+  obstack_sgrow (&output_obstack, "NULL");

 
 

-  if (!token_table_flag && !no_parser_flag)
-    obstack_grow_literal_string (&table_obstack, "#endif\n\n");
+  /* Finish table and store. */
+  obstack_1grow (&output_obstack, 0);
+  macro_insert ("tname", obstack_finish (&output_obstack));

 
   /* Output YYTOKNUM. */
 
   /* Output YYTOKNUM. */

-  if (token_table_flag)
-    {
-      output_short_table (&table_obstack,
-                 "YYTOKNUM[YYLEX] -- Index in YYTNAME corresponding to YYLEX",
-                         "yytoknum", user_toknums,
-                         0, 1, ntokens + 1);
-    }
+  output_table_data (&output_obstack, user_toknums,
+                    0, 1, ntokens + 1);
+  macro_insert ("toknum", obstack_finish (&output_obstack));

 
   /* Output YYR1. */
 
   /* Output YYR1. */

-  output_short_table (&table_obstack,
-             "YYR1[YYN] -- Symbol number of symbol that rule YYN derives",
-                     "yyr1", rlhs,
-                     0, 1, nrules + 1);
+  output_table_data (&output_obstack, rlhs, 
+                    0, 1, nrules + 1);
+  macro_insert ("r1", obstack_finish (&output_obstack));

   XFREE (rlhs + 1);
 
   XFREE (rlhs + 1);
 

-  obstack_1grow (&table_obstack, '\n');
-

   /* Output YYR2. */
   short_tab = XMALLOC (short, nrules + 1);
   for (i = 1; i < nrules; i++)
     short_tab[i] = rrhs[i + 1] - rrhs[i] - 1;
   short_tab[nrules] = nitems - rrhs[nrules] - 1;
   /* Output YYR2. */
   short_tab = XMALLOC (short, nrules + 1);
   for (i = 1; i < nrules; i++)
     short_tab[i] = rrhs[i + 1] - rrhs[i] - 1;
   short_tab[nrules] = nitems - rrhs[nrules] - 1;

-  output_short_table (&table_obstack,
-        "YYR2[YYN] -- Number of symbols composing right hand side of rule YYN",
-                     "yyr2", short_tab,
-                     0, 1, nrules + 1);
-  obstack_1grow (&table_obstack, '\n');
-
+  output_table_data (&output_obstack, short_tab, 
+                    0, 1, nrules + 1);
+  macro_insert ("r2", obstack_finish (&output_obstack));

   XFREE (short_tab);
 
   XFREE (rrhs + 1);
 }
 
   XFREE (short_tab);
 
   XFREE (rrhs + 1);
 }
 

-
-static void
-output_defines (void)
-{
-  obstack_fgrow1 (&table_obstack, "\n\n#define\tYYFINAL\t\t%d\n", final_state);
-  obstack_fgrow1 (&table_obstack, "#define\tYYFLAG\t\t%d\n", MINSHORT);
-  obstack_fgrow1 (&table_obstack, "#define\tYYNTBASE\t%d\n", ntokens);
-}
-
-

 /*------------------------------------------------------------------.
 | Decide what to do for each type of token if seen as the lookahead |
 | token in specified state.  The value returned is used as the      |
 /*------------------------------------------------------------------.
 | Decide what to do for each type of token if seen as the lookahead |
 | token in specified state.  The value returned is used as the      |


@@ -739,15 +533,12 @@ token_actions (void)
       yydefact[i] = action_row (i);
       save_row (i);
     }
       yydefact[i] = action_row (i);
       save_row (i);
     }

-  XFREE (actrow);

 
 

-  output_short_table (&table_obstack,
-  "YYDEFACT[S] -- default rule to reduce with in state S when YYTABLE\n\
-   doesn't specify something else to do.  Zero means the default is an\n\
-   error",
-                     "yydefact", yydefact,
-                     yydefact[0], 1, nstates);
-  obstack_1grow (&table_obstack, '\n');
+  output_table_data (&output_obstack, yydefact, 
+                    yydefact[0], 1, nstates);
+  macro_insert ("defact", obstack_finish (&output_obstack));
+  
+  XFREE (actrow);

   XFREE (yydefact);
 }
 
   XFREE (yydefact);
 }
 


@@ -874,10 +665,9 @@ static void
 goto_actions (void)
 {
   int i;
 goto_actions (void)
 {
   int i;

-

   short *yydefgoto = XMALLOC (short, nsyms - ntokens);
   short *yydefgoto = XMALLOC (short, nsyms - ntokens);

-  state_count = XCALLOC (short, nstates);

 
 

+  state_count = XCALLOC (short, nstates);

   for (i = ntokens; i < nsyms; ++i)
     {
       int default_state = default_goto (i);
   for (i = ntokens; i < nsyms; ++i)
     {
       int default_state = default_goto (i);


@@ -885,8 +675,9 @@ goto_actions (void)
       yydefgoto[i - ntokens] = default_state;
     }
 
       yydefgoto[i - ntokens] = default_state;
     }
 

-  output_short_table (&table_obstack, NULL, "yydefgoto", yydefgoto,
-                     yydefgoto[0], 1, nsyms - ntokens);
+  output_table_data (&output_obstack, yydefgoto, 
+                    yydefgoto[0], 1, nsyms - ntokens);
+  macro_insert ("defgoto", obstack_finish (&output_obstack));

 
   XFREE (state_count);
   XFREE (yydefgoto);
 
   XFREE (state_count);
   XFREE (yydefgoto);


@@ -1088,13 +879,15 @@ pack_table (void)
 static void
 output_base (void)
 {
 static void
 output_base (void)
 {

-  output_short_table (&table_obstack, NULL, "yypact", base,
-                     base[0], 1, nstates);
-
-  obstack_1grow (&table_obstack, '\n');
+  /* Output pact. */
+  output_table_data (&output_obstack, base, 
+                    base[0], 1, nstates);
+  macro_insert ("pact", obstack_finish (&output_obstack));

 
 

-  output_short_table (&table_obstack, NULL, "yypgoto", base,
-                     base[nstates], nstates + 1, nvectors);
+  /* Output pgoto. */
+  output_table_data (&output_obstack, base, 
+                    base[nstates], nstates + 1, nvectors);
+  macro_insert ("pgoto", obstack_finish (&output_obstack));

 
   XFREE (base);
 }
 
   XFREE (base);
 }


@@ -1103,9 +896,9 @@ output_base (void)
 static void
 output_table (void)
 {
 static void
 output_table (void)
 {

-  obstack_fgrow1 (&table_obstack, "\n\n#define\tYYLAST\t\t%d\n\n\n", high);
-  output_short_table (&table_obstack, NULL, "yytable", table,
-                     table[0], 1, high + 1);
+  output_table_data (&output_obstack, table, 
+                    table[0], 1, high + 1);
+  macro_insert ("table", obstack_finish (&output_obstack));

   XFREE (table);
 }
 
   XFREE (table);
 }
 


@@ -1113,8 +906,9 @@ output_table (void)
 static void
 output_check (void)
 {
 static void
 output_check (void)
 {

-  output_short_table (&table_obstack, NULL, "yycheck", check,
-                     check[0], 1, high + 1);
+  output_table_data (&output_obstack, check, 
+                    check[0], 1, high + 1);
+  macro_insert ("check", obstack_finish (&output_obstack));

   XFREE (check);
 }
 
   XFREE (check);
 }
 


@@ -1146,119 +940,83 @@ output_actions (void)
 
   sort_actions ();
   pack_table ();
 
   sort_actions ();
   pack_table ();

-  obstack_1grow (&table_obstack, '\n');
+

   output_base ();
   output_table ();
   output_base ();
   output_table ();

-  obstack_1grow (&table_obstack, '\n');
+

   output_check ();
 }
 
   output_check ();
 }
 

-/* copy the parser code into the ftable file at the end.  */
+/*------------------------------------------.
+| Copy the parser code into TABLE_OBSTACK.  |
+`------------------------------------------*/

 
 static void
 output_parser (void)
 {
   int c;
 
 static void
 output_parser (void)
 {
   int c;

-  static int number_of_dollar_signs = 0;
-#ifdef DONTDEF
-  FILE *fpars;
-#else
-#define fpars fparser
-#endif
-
-  if (pure_parser)
-    obstack_grow_literal_string (&table_obstack, "#define YYPURE 1\n\n");
-
-#ifdef DONTDEF
-  /* JF no longer needed 'cuz open_extra_files changes the currently
-     open parser from bison.simple to bison.hairy */
-  if (semantic_parser)
-    fpars = fparser;
-  else
-    fpars = fparser1;
-#endif
+  FILE *fskel;
+  size_t line;
+  int actions_dumped = 0;

 
   /* Loop over lines in the standard parser file.  */
 
   /* Loop over lines in the standard parser file.  */

-
-  while (1)
+  if (!skeleton)

     {
     {

-      int write_line = 1;
-
-      c = getc (fpars);
-
-      /* See if the line starts with `#line.
-         If so, set write_line to 0.  */
-      if (no_lines_flag)
-       if (c == '#')
-         {
-           c = getc (fpars);
-           if (c == 'l')
-             {
-               c = getc (fpars);
-               if (c == 'i')
-                 {
-                   c = getc (fpars);
-                   if (c == 'n')
-                     {
-                       c = getc (fpars);
-                       if (c == 'e')
-                         write_line = 0;
-                       else
-                         obstack_grow_literal_string (&table_obstack, "#lin");
-                     }
-                   else
-                     obstack_grow_literal_string (&table_obstack, "#li");
-                 }
-               else
-                 obstack_grow_literal_string (&table_obstack, "#l");
-             }
-           else
-             obstack_grow_literal_string (&table_obstack, "#");
-         }
-
-      /* now write out the line... */
-      for (; c != '\n' && c != EOF; c = getc (fpars))
-       if (write_line)
-         {
-           /* `$' in the parser file indicates where to put the
-              actions.  Copy them in at this point.  */
-           if (c == '$')
-             {
-               size_t size = obstack_object_size (&action_obstack);
-
-               number_of_dollar_signs++;
-               assert (number_of_dollar_signs == 1);
-               obstack_grow (&table_obstack,
-                             obstack_finish (&action_obstack),
-                             size);
-
-               /* Skip the end of the line containing `$'. */
-               write_line = 0;
-             }
-           else
-             obstack_1grow (&table_obstack, c);
-         }
-      if (c == EOF)
-       break;
-      obstack_1grow (&table_obstack, c);
+      if (semantic_parser)
+       skeleton = skeleton_find ("BISON_HAIRY", BISON_HAIRY);
+      else
+       skeleton = skeleton_find ("BISON_SIMPLE", BISON_SIMPLE);

     }
     }

-  assert (number_of_dollar_signs == 1);
-}
+  fskel = xfopen (skeleton, "r");

 
 

-static void
-output_program (void)
-{
-  int c;
-
-  if (!no_lines_flag)
-    obstack_fgrow2 (&table_obstack, "#line %d %s\n",
-                   lineno, quotearg_style (c_quoting_style, infile));
+  /* New output code.  */
+  line = 1;
+  c = getc (fskel);
+  while (c != EOF)
+    {
+      if (c != '%')
+       {
+         if (c == '\n')
+           ++line;
+         obstack_1grow (&table_obstack, c);
+         c = getc (fskel);
+       }
+      else if ((c = getc (fskel)) == '%')
+       {
+         /* Read the macro.  */
+         const char *macro_key = 0;
+         const char *macro_value = 0;
+         while (isalnum (c = getc (fskel)) || c == '_')
+           obstack_1grow (&macro_obstack, c);
+         obstack_1grow (&macro_obstack, 0);
+
+         /* Output the right value, or see if it's something special.  */
+         macro_key = obstack_finish (&macro_obstack);
+         macro_value = macro_find (macro_key);
+         if (macro_value)
+           obstack_sgrow (&table_obstack, macro_value);
+         else if (!strcmp (macro_key, "line"))
+           obstack_fgrow1 (&table_obstack, "%d", line + 1);
+         else if (!strcmp (macro_key, "action"))
+           {
+             size_t size = obstack_object_size (&action_obstack);
+             obstack_grow (&table_obstack, 
+                           obstack_finish (&action_obstack), size);
+           }
+         else
+           {
+             obstack_sgrow (&table_obstack, "%%");
+             obstack_sgrow (&table_obstack, macro_key);
+           }
+       }
+      else
+       obstack_1grow (&table_obstack, '%');
+    }

 
 

-  while ((c = getc (finput)) != EOF)
-    obstack_1grow (&table_obstack, c);
+  /* End.  */
+  xfclose (fskel);

 }
 
 }
 

-

 static void
 free_itemsets (void)
 {
 static void
 free_itemsets (void)
 {


@@ -1273,6 +1031,52 @@ free_itemsets (void)
     }
 }
 
     }
 }
 

+/* FIXME. */
+
+#define MACRO_INSERT_INT(Key, Value)                   \
+{                                                      \
+  obstack_fgrow1 (&macro_obstack, "%d", Value);                \
+  obstack_1grow (&macro_obstack, 0);                   \
+  macro_insert (Key, obstack_finish (&macro_obstack)); \
+}
+
+#define MACRO_INSERT_STRING(Key, Value)                        \
+{                                                      \
+  obstack_sgrow (&macro_obstack, Value);               \
+  obstack_1grow (&macro_obstack, 0);                   \
+  macro_insert (Key, obstack_finish (&macro_obstack)); \
+}
+
+#define MACRO_INSERT_PREFIX(Key, Value)                                        \
+{                                                                      \
+  obstack_fgrow2 (&macro_obstack, "%s%s", spec_name_prefix, Value);    \
+  obstack_1grow (&macro_obstack, 0);                                   \
+  macro_insert (Key, obstack_finish (&macro_obstack));                 \
+}
+
+static void
+prepare (void)
+{
+  MACRO_INSERT_INT ("last", high);
+  MACRO_INSERT_INT ("flag", MINSHORT);
+  MACRO_INSERT_INT ("pure", pure_parser);
+  MACRO_INSERT_INT ("nsym", nsyms);
+  MACRO_INSERT_INT ("debug", debug_flag);
+  MACRO_INSERT_INT ("final", final_state);
+  MACRO_INSERT_INT ("maxtok", max_user_token_number);
+  MACRO_INSERT_INT ("ntbase", ntokens);
+  MACRO_INSERT_INT ("verbose", 0);
+
+  MACRO_INSERT_INT ("nnts", nvars);
+  MACRO_INSERT_INT ("nrules", nrules);
+  MACRO_INSERT_INT ("nstates", nstates);
+  MACRO_INSERT_INT ("ntokens", ntokens);
+
+  MACRO_INSERT_INT ("locations_flag", locations_flag);
+
+  if (spec_name_prefix)
+    MACRO_INSERT_STRING ("prefix", spec_name_prefix);
+}

 
 /*----------------------------------------------------------.
 | Output the parsing tables and the parser code to ftable.  |
 
 /*----------------------------------------------------------.
 | Output the parsing tables and the parser code to ftable.  |


@@ -1281,51 +1085,30 @@ free_itemsets (void)
 void
 output (void)
 {
 void
 output (void)
 {

-  /* output_token_defines(ftable);      / * JF put out token defines FIRST */
-
-  /* If using a simple parser the definition of YYSTYPE are put into
-     TABLE_OBSTACK.  */
-  if (!semantic_parser)
-    {
-      size_t size = obstack_object_size (&attrs_obstack);
-      obstack_grow (&table_obstack, obstack_finish (&attrs_obstack), size);
-    }
-  reader_output_yylsp (&table_obstack);
-  if (debug_flag)
-    obstack_grow_literal_string (&table_obstack, "\
-#ifndef YYDEBUG\n\
-# define YYDEBUG 1\n\
-#endif\n\
-\n");
-
-  if (semantic_parser)
-    obstack_fgrow1 (&table_obstack, "#include %s\n",
-                   quotearg_style (c_quoting_style, attrsfile));
-
-  if (!no_parser_flag)
-    obstack_grow_literal_string (&table_obstack, "#include <stdio.h>\n\n");
-
-  /* Make "const" do nothing if not in ANSI C.  */
-  obstack_grow_literal_string (&table_obstack, "\
-#ifndef __cplusplus\n\
-# ifndef __STDC__\n\
-#  define const\n\
-# endif\n\
-#endif\n\
-\n");
+  obstack_init (&output_obstack);

 
 

+#if 0
+  reader_output_yylsp (&table_obstack); */
+#endif

   free_itemsets ();
   free_itemsets ();

-  output_defines ();
+

   output_token_translations ();
   output_token_translations ();

-/*   if (semantic_parser) */
-  /* This is now unconditional because debugging printouts can use it.  */

   output_gram ();
   output_gram ();

+

   XFREE (ritem);
   if (semantic_parser)
     output_stos ();
   output_rule_data ();
   output_actions ();
   XFREE (ritem);
   if (semantic_parser)
     output_stos ();
   output_rule_data ();
   output_actions ();

-  if (!no_parser_flag)
-    output_parser ();
-  output_program ();
+  
+#if 0
+  if (!no_parser_flag) */
+#endif
+  prepare ();
+  /* Copy definitions in directive.  */
+  macro_insert ("prologue", obstack_finish (&attrs_obstack));
+  output_parser ();
+
+  obstack_free (&macro_obstack, 0);
+  obstack_free (&output_obstack, 0);

 }
 }