c++: display locations as C does

[bison.git] / data / glr.c

diff --git a/data/glr.c b/data/glr.c
index 6a12cfbd199703cb206c7aa473dd17454557ee3a..be305f22e9ef38b929558de3e1c866bc7280aba8 100644 (file)
--- a/data/glr.c
+++ b/data/glr.c
@@ -2,7 +2,7 @@
 
 # GLR skeleton for Bison
 
 
 # GLR skeleton for Bison
 

-# Copyright (C) 2002-2012 Free Software Foundation, Inc.
+# Copyright (C) 2002-2013 Free Software Foundation, Inc.

 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by


@@ -52,17 +52,7 @@ m4_ifndef([b4_pure_flag],
 # This is not shared with yacc.c in c.m4 because  GLR relies on ISO C
 # formal argument declarations.
 m4_define([b4_user_formals],
 # This is not shared with yacc.c in c.m4 because  GLR relies on ISO C
 # formal argument declarations.
 m4_define([b4_user_formals],

-[m4_ifset([b4_parse_param], [, b4_c_ansi_formals(b4_parse_param)])])
-
-
-# b4_lex_param
-# ------------
-# Accumule in b4_lex_param all the yylex arguments.
-# Yes, this is quite ugly...
-m4_define([b4_lex_param],
-m4_dquote(b4_pure_if([[[[YYSTYPE *]], [[&yylval]]][]dnl
-b4_locations_if([, [[YYLTYPE *], [&yylloc]]])])dnl
-m4_ifdef([b4_lex_param], [, ]b4_lex_param)))
+[m4_ifset([b4_parse_param], [, b4_formals(b4_parse_param)])])

 
 
 # b4_yyerror_args
 
 
 # b4_yyerror_args


@@ -71,7 +61,7 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param)))
 # a trailing comma.
 m4_define([b4_yyerror_args],
 [b4_pure_if([b4_locations_if([yylocp, ])])dnl
 # a trailing comma.
 m4_define([b4_yyerror_args],
 [b4_pure_if([b4_locations_if([yylocp, ])])dnl

-m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
+m4_ifset([b4_parse_param], [b4_args(b4_parse_param), ])])

 
 
 # b4_lyyerror_args
 
 
 # b4_lyyerror_args


@@ -79,7 +69,7 @@ m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
 # Same as above, but on the lookahead, hence &yylloc instead of yylocp.
 m4_define([b4_lyyerror_args],
 [b4_pure_if([b4_locations_if([&yylloc, ])])dnl
 # Same as above, but on the lookahead, hence &yylloc instead of yylocp.
 m4_define([b4_lyyerror_args],
 [b4_pure_if([b4_locations_if([&yylloc, ])])dnl

-m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
+m4_ifset([b4_parse_param], [b4_args(b4_parse_param), ])])

 
 
 # b4_pure_args
 
 
 # b4_pure_args


@@ -172,28 +162,26 @@ m4_define([b4_rhs_location],
 # b4_shared_declarations
 # ----------------------
 # Declaration that might either go into the header (if --defines)
 # b4_shared_declarations
 # ----------------------
 # Declaration that might either go into the header (if --defines)

-# or open coded in the parser body.
-m4_define([b4_shared_declarations],
+# or open coded in the parser body.  glr.cc has its own definition.
+m4_if(b4_skeleton, ["glr.c"],
+[m4_define([b4_shared_declarations],

 [b4_declare_yydebug[
 ]b4_percent_code_get([[requires]])[
 ]b4_token_enums[
 ]b4_declare_yylstype[
 [b4_declare_yydebug[
 ]b4_percent_code_get([[requires]])[
 ]b4_token_enums[
 ]b4_declare_yylstype[

-]b4_c_ansi_function_decl(b4_prefix[parse], [int], b4_parse_param)[
+]b4_function_declare(b4_prefix[parse], [int], b4_parse_param)[

 ]b4_percent_code_get([[provides]])[]dnl
 ])
 ]b4_percent_code_get([[provides]])[]dnl
 ])

-
+])

 
 ## -------------- ##
 ## Output files.  ##
 ## -------------- ##
 
 
 ## -------------- ##
 ## Output files.  ##
 ## -------------- ##
 

-# We do want M4 expansion after # for CPP macros.
-m4_changecom()
-m4_divert_push(0)dnl
-@output(b4_parser_file_name@)@
+b4_output_begin([b4_parser_file_name])

 b4_copyright([Skeleton implementation for Bison GLR parsers in C],
 b4_copyright([Skeleton implementation for Bison GLR parsers in C],

-             [2002-2012])
-[
+             [2002-2013])[
+

 /* C GLR parser skeleton written by Paul Hilfinger.  */
 
 ]b4_identification
 /* C GLR parser skeleton written by Paul Hilfinger.  */
 
 ]b4_identification


@@ -208,11 +196,12 @@ b4_percent_code_get([[top]])[
 #define yyparse ]b4_prefix[parse
 #define yylex   ]b4_prefix[lex
 #define yyerror ]b4_prefix[error
 #define yyparse ]b4_prefix[parse
 #define yylex   ]b4_prefix[lex
 #define yyerror ]b4_prefix[error

+#define yydebug ]b4_prefix[debug
+]]b4_pure_if([], [[

 #define yylval  ]b4_prefix[lval
 #define yychar  ]b4_prefix[char
 #define yylval  ]b4_prefix[lval
 #define yychar  ]b4_prefix[char

-#define yydebug ]b4_prefix[debug

 #define yynerrs ]b4_prefix[nerrs]b4_locations_if([[
 #define yynerrs ]b4_prefix[nerrs]b4_locations_if([[

-#define yylloc  ]b4_prefix[lloc]])])[
+#define yylloc  ]b4_prefix[lloc]])]))[

 
 /* First part of user declarations.  */
 ]b4_user_pre_prologue[
 
 /* First part of user declarations.  */
 ]b4_user_pre_prologue[


@@ -231,11 +220,11 @@ b4_percent_code_get([[top]])[
 #endif
 
 /* Default (constant) value used for initialization for null
 #endif
 
 /* Default (constant) value used for initialization for null

-   right-hand sides.  Unlike the standard yacc.c template,
-   here we set the default value of $$ to a zeroed-out value.
-   Since the default value is undefined, this behavior is
-   technically correct.  */
-static YYSTYPE yyval_default;
+   right-hand sides.  Unlike the standard yacc.c template, here we set
+   the default value of $$ to a zeroed-out value.  Since the default
+   value is undefined, this behavior is technically correct.  */
+static YYSTYPE yyval_default;]b4_locations_if([[
+static YYLTYPE yyloc_default][]b4_yyloc_default;])[

 
 /* Copy the second part of user declarations.  */
 ]b4_user_post_prologue
 
 /* Copy the second part of user declarations.  */
 ]b4_user_post_prologue


@@ -249,29 +238,19 @@ b4_percent_code_get[]dnl
 # if defined YYENABLE_NLS && YYENABLE_NLS
 #  if ENABLE_NLS
 #   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
 # if defined YYENABLE_NLS && YYENABLE_NLS
 #  if ENABLE_NLS
 #   include <libintl.h> /* INFRINGES ON USER NAME SPACE */

-#   define YY_(msgid) dgettext ("bison-runtime", msgid)
+#   define YY_(Msgid) dgettext ("bison-runtime", Msgid)

 #  endif
 # endif
 # ifndef YY_
 #  endif
 # endif
 # ifndef YY_

-#  define YY_(msgid) msgid
+#  define YY_(Msgid) Msgid

 # endif
 #endif
 
 /* Suppress unused-variable warnings by "using" E.  */
 # endif
 #endif
 
 /* Suppress unused-variable warnings by "using" E.  */

-#if ! defined lint || defined __GNUC__
-# define YYUSE(e) ((void) (e))
-#else
-# define YYUSE(e) /* empty */
-#endif
-
-/* Identity function, used to suppress warnings about constant conditions.  */
-#ifndef lint
-# define YYID(n) (n)
+#ifdef __GNUC__
+# define YYUSE(E) ((void) (E))

 #else
 #else

-]b4_c_function_def([YYID], [static int], [[int i], [i]])[
-{
-  return i;
-}
+# define YYUSE(E) /* empty */

 #endif
 
 #ifndef YYFREE
 #endif
 
 #ifndef YYFREE


@@ -297,8 +276,9 @@ b4_percent_code_get[]dnl
 #ifndef YYSETJMP
 # include <setjmp.h>
 # define YYJMP_BUF jmp_buf
 #ifndef YYSETJMP
 # include <setjmp.h>
 # define YYJMP_BUF jmp_buf

-# define YYSETJMP(env) setjmp (env)
-# define YYLONGJMP(env, val) longjmp (env, val)
+# define YYSETJMP(Env) setjmp (Env)
+/* Pacify clang.  */
+# define YYLONGJMP(Env, Val) (longjmp (Env, Val), YYASSERT (0))

 #endif
 
 /*-----------------.
 #endif
 
 /*-----------------.


@@ -313,15 +293,8 @@ b4_percent_code_get[]dnl
 # endif
 #endif
 
 # endif
 #endif
 

-]b4_locations_if([#define YYOPTIONAL_LOC(Name) Name],[
-#ifdef __cplusplus
-# define YYOPTIONAL_LOC(Name) /* empty */
-#else
-# define YYOPTIONAL_LOC(Name) Name __attribute__ ((__unused__))
-#endif])[
-

 #ifndef YYASSERT
 #ifndef YYASSERT

-# define YYASSERT(condition) ((void) ((condition) || (abort (), 0)))
+# define YYASSERT(Condition) ((void) ((Condition) || (abort (), 0)))

 #endif
 
 /* YYFINAL -- State number of the termination state.  */
 #endif
 
 /* YYFINAL -- State number of the termination state.  */


@@ -409,42 +382,21 @@ static const ]b4_int_type_for([b4_conflict_list_heads])[ yyconflp[] =
 /* YYCONFL[I] -- lists of conflicting rule numbers, each terminated by
    0, pointed into by YYCONFLP.  */
 ]dnl Do not use b4_int_type_for here, since there are places where
 /* YYCONFL[I] -- lists of conflicting rule numbers, each terminated by
    0, pointed into by YYCONFLP.  */
 ]dnl Do not use b4_int_type_for here, since there are places where

-dnl pointers onto yyconfl are taken, which type is "short int *".
+dnl pointers onto yyconfl are taken, whose type is "short int *".

 dnl We probably ought to introduce a type for confl.
 [static const short int yyconfl[] =
 {
   ]b4_conflicting_rules[
 };
 dnl We probably ought to introduce a type for confl.
 [static const short int yyconfl[] =
 {
   ]b4_conflicting_rules[
 };

-\f
+

 /* Error token number */
 #define YYTERROR 1
 
 ]b4_locations_if([[
 /* Error token number */
 #define YYTERROR 1
 
 ]b4_locations_if([[

-#ifndef YYLLOC_DEFAULT

 ]b4_yylloc_default_define[
 # define YYRHSLOC(Rhs, K) ((Rhs)[K].yystate.yyloc)
 ]b4_yylloc_default_define[
 # define YYRHSLOC(Rhs, K) ((Rhs)[K].yystate.yyloc)

-
-/* YY_LOCATION_PRINT -- Print the location on the stream.
-   This macro was not mandated originally: define only if we know
-   we won't break user code: when these are the locations we know.  */
-
-# define YY_LOCATION_PRINT(File, Loc)                   \
-    fprintf (File, "%d.%d-%d.%d",                       \
-             (Loc).first_line, (Loc).first_column,      \
-             (Loc).last_line,  (Loc).last_column)
-#endif
-]],[
-#ifndef YYLLOC_DEFAULT
-# define YYLLOC_DEFAULT(Current, Rhs, N) ((void) 0)
-#endif
-])[
-
-#ifndef YY_LOCATION_PRINT
-# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
-#endif
-
-/* YYLEX -- calling `yylex' with the right arguments.  */
-#define YYLEX ]b4_c_function_call([yylex], [int], b4_lex_param)[
+]])[
+]b4_yy_location_print_define[

 
 ]b4_pure_if(
 [
 
 ]b4_pure_if(
 [


@@ -477,7 +429,7 @@ typedef enum { yyok, yyaccept, yyabort, yyerr } YYRESULTTAG;
     YYRESULTTAG yychk_flag = YYE;               \
     if (yychk_flag != yyok)                     \
       return yychk_flag;                        \
     YYRESULTTAG yychk_flag = YYE;               \
     if (yychk_flag != yyok)                     \
       return yychk_flag;                        \

-  } while (YYID (0))
+  } while (0)

 
 #if ]b4_api_PREFIX[DEBUG
 
 
 #if ]b4_api_PREFIX[DEBUG
 


@@ -489,9 +441,9 @@ typedef enum { yyok, yyaccept, yyabort, yyerr } YYRESULTTAG;
   do {                                          \
     if (yydebug)                                \
       YYFPRINTF Args;                           \
   do {                                          \
     if (yydebug)                                \
       YYFPRINTF Args;                           \

-  } while (YYID (0))
+  } while (0)

 
 

-]b4_yy_symbol_print_generate([b4_c_ansi_function_def])[
+]b4_yy_symbol_print_define[

 
 # define YY_SYMBOL_PRINT(Title, Type, Value, Location)                  \
   do {                                                                  \
 
 # define YY_SYMBOL_PRINT(Title, Type, Value, Location)                  \
   do {                                                                  \


@@ -501,12 +453,18 @@ typedef enum { yyok, yyaccept, yyabort, yyerr } YYRESULTTAG;
         yy_symbol_print (stderr, Type, Value]b4_locuser_args([Location])[);        \
         YYFPRINTF (stderr, "\n");                                       \
       }                                                                 \
         yy_symbol_print (stderr, Type, Value]b4_locuser_args([Location])[);        \
         YYFPRINTF (stderr, "\n");                                       \
       }                                                                 \

-  } while (YYID (0))
+  } while (0)

 
 /* Nonzero means print parse trace.  It is left uninitialized so that
    multiple parsers can coexist.  */
 int yydebug;
 
 
 /* Nonzero means print parse trace.  It is left uninitialized so that
    multiple parsers can coexist.  */
 int yydebug;
 

+struct yyGLRStack;
+static void yypstack (struct yyGLRStack* yystackp, size_t yyk)
+  __attribute__ ((__unused__));
+static void yypdumpstack (struct yyGLRStack* yystackp)
+  __attribute__ ((__unused__));
+

 #else /* !]b4_api_PREFIX[DEBUG */
 
 # define YYDPRINTF(Args)
 #else /* !]b4_api_PREFIX[DEBUG */
 
 # define YYDPRINTF(Args)


@@ -546,13 +504,13 @@ int yydebug;
   do {                                                  \
     if (Yystack->yyspaceLeft < YYHEADROOM)              \
       yyexpandGLRStack (Yystack);                       \
   do {                                                  \
     if (Yystack->yyspaceLeft < YYHEADROOM)              \
       yyexpandGLRStack (Yystack);                       \

-  } while (YYID (0))
+  } while (0)

 #else
 # define YY_RESERVE_GLRSTACK(Yystack)                   \
   do {                                                  \
     if (Yystack->yyspaceLeft < YYHEADROOM)              \
       yyMemoryExhausted (Yystack);                      \
 #else
 # define YY_RESERVE_GLRSTACK(Yystack)                   \
   do {                                                  \
     if (Yystack->yyspaceLeft < YYHEADROOM)              \
       yyMemoryExhausted (Yystack);                      \

-  } while (YYID (0))
+  } while (0)

 #endif
 
 
 #endif
 
 


@@ -804,8 +762,8 @@ yyfill (yyGLRStackItem *yyvsp, int *yylow, int yylow1, yybool yynormal)
  *  value ($$), and yylocp points to place for location information
  *  (@@$).  Returns yyok for normal return, yyaccept for YYACCEPT,
  *  yyerr for YYERROR, yyabort for YYABORT.  */
  *  value ($$), and yylocp points to place for location information
  *  (@@$).  Returns yyok for normal return, yyaccept for YYACCEPT,
  *  yyerr for YYERROR, yyabort for YYABORT.  */

-/*ARGSUSED*/ static YYRESULTTAG
-yyuserAction (yyRuleNum yyn, int yyrhslen, yyGLRStackItem* yyvsp,
+static YYRESULTTAG
+yyuserAction (yyRuleNum yyn, size_t yyrhslen, yyGLRStackItem* yyvsp,

               yyGLRStack* yystackp,
               YYSTYPE* yyvalp]b4_locuser_formals[)
 {
               yyGLRStack* yystackp,
               YYSTYPE* yyvalp]b4_locuser_formals[)
 {


@@ -813,7 +771,8 @@ yyuserAction (yyRuleNum yyn, int yyrhslen, yyGLRStackItem* yyvsp,
     (yystackp->yysplitPoint == YY_NULL);
   int yylow;
 ]b4_parse_param_use([yyvalp], [yylocp])dnl
     (yystackp->yysplitPoint == YY_NULL);
   int yylow;
 ]b4_parse_param_use([yyvalp], [yylocp])dnl

-[# undef yyerrok
+[  YYUSE (yyrhslen);
+# undef yyerrok

 # define yyerrok (yystackp->yyerrState = 0)
 # undef YYACCEPT
 # define YYACCEPT return yyaccept
 # define yyerrok (yystackp->yyerrState = 0)
 # undef YYACCEPT
 # define YYACCEPT return yyaccept


@@ -855,9 +814,9 @@ yyuserAction (yyRuleNum yyn, int yyrhslen, yyGLRStackItem* yyvsp,
 # undef yyclearin
 # undef YYRECOVERING
 }
 # undef yyclearin
 # undef YYRECOVERING
 }

-\f

 
 

-/*ARGSUSED*/ static void
+
+static void

 yyuserMerge (int yyn, YYSTYPE* yy0, YYSTYPE* yy1)
 {
   YYUSE (yy0);
 yyuserMerge (int yyn, YYSTYPE* yy0, YYSTYPE* yy1)
 {
   YYUSE (yy0);


@@ -865,14 +824,14 @@ yyuserMerge (int yyn, YYSTYPE* yy0, YYSTYPE* yy1)
 
   switch (yyn)
     {
 
   switch (yyn)
     {

-      ]b4_mergers[
+]b4_mergers[

       default: break;
     }
 }
 
                               /* Bison grammar-table manipulation.  */
 
       default: break;
     }
 }
 
                               /* Bison grammar-table manipulation.  */
 

-]b4_yydestruct_generate([b4_c_ansi_function_def])[
+]b4_yydestruct_define[

 
 /** Number of symbols composing the right hand side of rule #RULE.  */
 static inline int
 
 /** Number of symbols composing the right hand side of rule #RULE.  */
 static inline int


@@ -922,8 +881,8 @@ yylhsNonterm (yyRuleNum yyrule)
   return yyr1[yyrule];
 }
 
   return yyr1[yyrule];
 }
 

-#define yypact_value_is_default(yystate) \
-  ]b4_table_value_equals([[pact]], [[yystate]], [b4_pact_ninf])[
+#define yypact_value_is_default(Yystate) \
+  ]b4_table_value_equals([[pact]], [[Yystate]], [b4_pact_ninf])[

 
 /** True iff LR state YYSTATE has only a default reduction (regardless
  *  of token).  */
 
 /** True iff LR state YYSTATE has only a default reduction (regardless
  *  of token).  */


@@ -940,8 +899,8 @@ yydefaultAction (yyStateNum yystate)
   return yydefact[yystate];
 }
 
   return yydefact[yystate];
 }
 

-#define yytable_value_is_error(yytable_value) \
-  ]b4_table_value_equals([[table]], [[yytable_value]], [b4_table_ninf])[
+#define yytable_value_is_error(Yytable_value) \
+  ]b4_table_value_equals([[table]], [[Yytable_value]], [b4_table_ninf])[

 
 /** Set *YYACTION to the action to take in YYSTATE on seeing YYTOKEN.
  *  Result R means
 
 /** Set *YYACTION to the action to take in YYSTATE on seeing YYTOKEN.
  *  Result R means


@@ -1277,13 +1236,13 @@ yyglrShiftDefer (yyGLRStack* yystackp, size_t yyk, yyStateNum yylrState,
 do {                                    \
   if (yydebug)                          \
     yy_reduce_print Args;               \
 do {                                    \
   if (yydebug)                          \
     yy_reduce_print Args;               \

-} while (YYID (0))
+} while (0)

 
 /*----------------------------------------------------------------------.
 | Report that stack #YYK of *YYSTACKP is going to be reduced by YYRULE. |
 `----------------------------------------------------------------------*/
 
 
 /*----------------------------------------------------------------------.
 | Report that stack #YYK of *YYSTACKP is going to be reduced by YYRULE. |
 `----------------------------------------------------------------------*/
 

-/*ARGSUSED*/ static inline void
+static inline void

 yy_reduce_print (int yynormal, yyGLRStackItem* yyvsp, size_t yyk,
                  yyRuleNum yyrule]b4_user_formals[)
 {
 yy_reduce_print (int yynormal, yyGLRStackItem* yyvsp, size_t yyk,
                  yyRuleNum yyrule]b4_user_formals[)
 {


@@ -1533,7 +1492,7 @@ yymergeOptionSets (yySemanticOption* yyy0, yySemanticOption* yyy1)
         {
           yySemanticOption** yyz0p = &yys0->yysemantics.yyfirstVal;
           yySemanticOption* yyz1 = yys1->yysemantics.yyfirstVal;
         {
           yySemanticOption** yyz0p = &yys0->yysemantics.yyfirstVal;
           yySemanticOption* yyz1 = yys1->yysemantics.yyfirstVal;

-          while (YYID (yytrue))
+          while (yytrue)

             {
               if (yyz1 == *yyz0p || yyz1 == YY_NULL)
                 break;
             {
               if (yyz1 == *yyz0p || yyz1 == YY_NULL)
                 break;


@@ -1694,7 +1653,7 @@ yyreportTree (yySemanticOption* yyx, int yyindent)
 }
 #endif
 
 }
 #endif
 

-/*ARGSUSED*/ static YYRESULTTAG
+static YYRESULTTAG

 yyreportAmbiguity (yySemanticOption* yyx0,
                    yySemanticOption* yyx1]b4_pure_formals[)
 {
 yyreportAmbiguity (yySemanticOption* yyx0,
                    yySemanticOption* yyx1]b4_pure_formals[)
 {


@@ -1955,7 +1914,7 @@ yyprocessOneStack (yyGLRStack* yystackp, size_t yyk,
           if (yychar == YYEMPTY)
             {
               YYDPRINTF ((stderr, "Reading a token: "));
           if (yychar == YYEMPTY)
             {
               YYDPRINTF ((stderr, "Reading a token: "));

-              yychar = YYLEX;
+              yychar = ]b4_lex[;

             }
 
           if (yychar <= YYEOF)
             }
 
           if (yychar <= YYEOF)


@@ -2025,7 +1984,7 @@ yyprocessOneStack (yyGLRStack* yystackp, size_t yyk,
   return yyok;
 }
 
   return yyok;
 }
 

-/*ARGSUSED*/ static void
+static void

 yyreportSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
 {
   if (yystackp->yyerrState != 0)
 yyreportSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
 {
   if (yystackp->yyerrState != 0)


@@ -2033,10 +1992,10 @@ yyreportSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
 #if ! YYERROR_VERBOSE
   yyerror (]b4_lyyerror_args[YY_("syntax error"));
 #else
 #if ! YYERROR_VERBOSE
   yyerror (]b4_lyyerror_args[YY_("syntax error"));
 #else

+  {

   yySymbol yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
   size_t yysize0 = yytnamerr (YY_NULL, yytokenName (yytoken));
   size_t yysize = yysize0;
   yySymbol yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar);
   size_t yysize0 = yytnamerr (YY_NULL, yytokenName (yytoken));
   size_t yysize = yysize0;

-  size_t yysize1;

   yybool yysize_overflow = yyfalse;
   char* yymsg = YY_NULL;
   enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
   yybool yysize_overflow = yyfalse;
   char* yymsg = YY_NULL;
   enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };


@@ -2096,9 +2055,11 @@ yyreportSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
                     break;
                   }
                 yyarg[yycount++] = yytokenName (yyx);
                     break;
                   }
                 yyarg[yycount++] = yytokenName (yyx);

-                yysize1 = yysize + yytnamerr (YY_NULL, yytokenName (yyx));
-                yysize_overflow |= yysize1 < yysize;
-                yysize = yysize1;
+                {
+                  size_t yysz = yysize + yytnamerr (YY_NULL, yytokenName (yyx));
+                  yysize_overflow |= yysz < yysize;
+                  yysize = yysz;
+                }

               }
         }
     }
               }
         }
     }


@@ -2118,9 +2079,11 @@ yyreportSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
 #undef YYCASE_
     }
 
 #undef YYCASE_
     }
 

-  yysize1 = yysize + strlen (yyformat);
-  yysize_overflow |= yysize1 < yysize;
-  yysize = yysize1;
+  {
+    size_t yysz = yysize + strlen (yyformat);
+    yysize_overflow |= yysz < yysize;
+    yysize = yysz;
+  }

 
   if (!yysize_overflow)
     yymsg = (char *) YYMALLOC (yysize);
 
   if (!yysize_overflow)
     yymsg = (char *) YYMALLOC (yysize);


@@ -2150,6 +2113,7 @@ yyreportSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
       yyerror (]b4_lyyerror_args[YY_("syntax error"));
       yyMemoryExhausted (yystackp);
     }
       yyerror (]b4_lyyerror_args[YY_("syntax error"));
       yyMemoryExhausted (yystackp);
     }

+  }

 #endif /* YYERROR_VERBOSE */
   yynerrs += 1;
 }
 #endif /* YYERROR_VERBOSE */
   yynerrs += 1;
 }


@@ -2157,7 +2121,7 @@ yyreportSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
 /* Recover from a syntax error on *YYSTACKP, assuming that *YYSTACKP->YYTOKENP,
    yylval, and yylloc are the syntactic category, semantic value, and location
    of the lookahead.  */
 /* Recover from a syntax error on *YYSTACKP, assuming that *YYSTACKP->YYTOKENP,
    yylval, and yylloc are the syntactic category, semantic value, and location
    of the lookahead.  */

-/*ARGSUSED*/ static void
+static void

 yyrecoverSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
 {
   size_t yyk;
 yyrecoverSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
 {
   size_t yyk;


@@ -2166,7 +2130,7 @@ yyrecoverSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
   if (yystackp->yyerrState == 3)
     /* We just shifted the error token and (perhaps) took some
        reductions.  Skip tokens until we can proceed.  */
   if (yystackp->yyerrState == 3)
     /* We just shifted the error token and (perhaps) took some
        reductions.  Skip tokens until we can proceed.  */

-    while (YYID (yytrue))
+    while (yytrue)

       {
         yySymbol yytoken;
         if (yychar == YYEOF)
       {
         yySymbol yytoken;
         if (yychar == YYEOF)


@@ -2185,7 +2149,7 @@ yyrecoverSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
                         yytoken, &yylval]b4_locuser_args([&yylloc])[);
           }
         YYDPRINTF ((stderr, "Reading a token: "));
                         yytoken, &yylval]b4_locuser_args([&yylloc])[);
           }
         YYDPRINTF ((stderr, "Reading a token: "));

-        yychar = YYLEX;
+        yychar = ]b4_lex[;

         if (yychar <= YYEOF)
           {
             yychar = yytoken = YYEOF;
         if (yychar <= YYEOF)
           {
             yychar = yytoken = YYEOF;


@@ -2270,13 +2234,13 @@ yyrecoverSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
     default:                                                                 \
       goto yybuglab;                                                         \
     }                                                                        \
     default:                                                                 \
       goto yybuglab;                                                         \
     }                                                                        \

-  } while (YYID (0))
+  } while (0)

 
 /*----------.
 | yyparse.  |
 `----------*/
 
 
 /*----------.
 | yyparse.  |
 `----------*/
 

-]b4_c_ansi_function_def([yyparse], [int], b4_parse_param)[
+]b4_function_define([yyparse], [int], b4_parse_param)[

 {
   int yyresult;
   yyGLRStack yystack;
 {
   int yyresult;
   yyGLRStack yystack;


@@ -2286,14 +2250,9 @@ yyrecoverSyntaxError (yyGLRStack* yystackp]b4_user_formals[)
   YYDPRINTF ((stderr, "Starting parse\n"));
 
   yychar = YYEMPTY;
   YYDPRINTF ((stderr, "Starting parse\n"));
 
   yychar = YYEMPTY;

-  yylval = yyval_default;
-]b4_locations_if([
-#if defined ]b4_api_PREFIX[LTYPE_IS_TRIVIAL && ]b4_api_PREFIX[LTYPE_IS_TRIVIAL
-  yylloc.first_line   = yylloc.last_line   = ]b4_location_initial_line[;
-  yylloc.first_column = yylloc.last_column = ]b4_location_initial_column[;
-#endif
-])
-m4_ifdef([b4_initial_action], [
+  yylval = yyval_default;]b4_locations_if([
+  yylloc = yyloc_default;])[
+]m4_ifdef([b4_initial_action], [

 b4_dollar_pushdef([yylval], [], [yylloc])dnl
   /* User initialization code.  */
   b4_user_initial_action
 b4_dollar_pushdef([yylval], [], [yylloc])dnl
   /* User initialization code.  */
   b4_user_initial_action


@@ -2311,13 +2270,13 @@ b4_dollar_popdef])[]dnl
   yyglrShift (&yystack, 0, 0, 0, &yylval]b4_locations_if([, &yylloc])[);
   yyposn = 0;
 
   yyglrShift (&yystack, 0, 0, 0, &yylval]b4_locations_if([, &yylloc])[);
   yyposn = 0;
 

-  while (YYID (yytrue))
+  while (yytrue)

     {
       /* For efficiency, we have two loops, the first of which is
          specialized to deterministic operation (single stack, no
          potential ambiguity).  */
       /* Standard mode */
     {
       /* For efficiency, we have two loops, the first of which is
          specialized to deterministic operation (single stack, no
          potential ambiguity).  */
       /* Standard mode */

-      while (YYID (yytrue))
+      while (yytrue)

         {
           yyRuleNum yyrule;
           int yyaction;
         {
           yyRuleNum yyrule;
           int yyaction;


@@ -2344,7 +2303,7 @@ b4_dollar_popdef])[]dnl
               if (yychar == YYEMPTY)
                 {
                   YYDPRINTF ((stderr, "Reading a token: "));
               if (yychar == YYEMPTY)
                 {
                   YYDPRINTF ((stderr, "Reading a token: "));

-                  yychar = YYLEX;
+                  yychar = ]b4_lex[;

                 }
 
               if (yychar <= YYEOF)
                 }
 
               if (yychar <= YYEOF)


@@ -2381,7 +2340,7 @@ b4_dollar_popdef])[]dnl
             }
         }
 
             }
         }
 

-      while (YYID (yytrue))
+      while (yytrue)

         {
           yySymbol yytoken_to_shift;
           size_t yys;
         {
           yySymbol yytoken_to_shift;
           size_t yys;


@@ -2513,16 +2472,11 @@ b4_dollar_popdef])[]dnl
       yyfreeGLRStack (&yystack);
     }
 
       yyfreeGLRStack (&yystack);
     }
 

-  /* Make sure YYID is used.  */
-  return YYID (yyresult);
+  return yyresult;

 }
 
 /* DEBUGGING ONLY */
 #if ]b4_api_PREFIX[DEBUG
 }
 
 /* DEBUGGING ONLY */
 #if ]b4_api_PREFIX[DEBUG

-static void yypstack (yyGLRStack* yystackp, size_t yyk)
-  __attribute__ ((__unused__));
-static void yypdumpstack (yyGLRStack* yystackp) __attribute__ ((__unused__));
-

 static void
 yy_yypstack (yyGLRState* yys)
 {
 static void
 yy_yypstack (yyGLRState* yys)
 {


@@ -2591,18 +2545,35 @@ yypdumpstack (yyGLRStack* yystackp)
   YYFPRINTF (stderr, "\n");
 }
 #endif
   YYFPRINTF (stderr, "\n");
 }
 #endif

+
+#undef yylval
+#undef yychar
+#undef yynerrs]b4_locations_if([
+#undef yylloc])
+
+m4_if(b4_prefix, [yy], [],
+[[/* Substitute the variable and function names.  */
+#define yyparse ]b4_prefix[parse
+#define yylex   ]b4_prefix[lex
+#define yyerror ]b4_prefix[error
+#define yylval  ]b4_prefix[lval
+#define yychar  ]b4_prefix[char
+#define yydebug ]b4_prefix[debug
+#define yynerrs ]b4_prefix[nerrs]b4_locations_if([[
+#define yylloc  ]b4_prefix[lloc]])])[
+

 ]b4_epilogue[]dnl
 ]b4_epilogue[]dnl

-dnl
-dnl glr.cc produces its own header.
-dnl
+b4_output_end()
+
+# glr.cc produces its own header.

 m4_if(b4_skeleton, ["glr.c"],
 [b4_defines_if(
 m4_if(b4_skeleton, ["glr.c"],
 [b4_defines_if(

-[@output(b4_spec_defines_file@)@
+[b4_output_begin([b4_spec_defines_file])

 b4_copyright([Skeleton interface for Bison GLR parsers in C],
 b4_copyright([Skeleton interface for Bison GLR parsers in C],

-             [2002-2012])[
+             [2002-2013])[

 
 ]b4_cpp_guard_open([b4_spec_defines_file])[
 ]b4_shared_declarations[
 ]b4_cpp_guard_close([b4_spec_defines_file])[
 
 ]b4_cpp_guard_open([b4_spec_defines_file])[
 ]b4_shared_declarations[
 ]b4_cpp_guard_close([b4_spec_defines_file])[

-]])])
-m4_divert_pop(0)
+]b4_output_end()
+])])