* TODO: Remove dead items.

[bison.git] / data / yacc.c

diff --git a/data/yacc.c b/data/yacc.c
index a8b4e6c9fb6794ebd81ab51c2068a2c61de7c496..6f847177db3f9f5789bb3fd6fadd17f5b7bd4a1e 100644 (file)
--- a/data/yacc.c
+++ b/data/yacc.c
@@ -2,7 +2,7 @@ m4_divert(-1)                                                -*- C -*-
 
 # Yacc compatible skeleton for Bison
 
 
 # Yacc compatible skeleton for Bison
 

-# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005
+# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006

 # Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify


@@ -20,7 +20,7 @@ m4_divert(-1)                                                -*- C -*-
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 # 02110-1301  USA
 
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 # 02110-1301  USA
 

-
+m4_include(b4_pkgdatadir/[c.m4])

 
 ## ---------------- ##
 ## Default values.  ##
 
 ## ---------------- ##
 ## Default values.  ##


@@ -36,20 +36,20 @@ m4_define_default([b4_stack_depth_init],  [200])
 ## ------------------------ ##
 
 
 ## ------------------------ ##
 
 

-# b4_pure_if(IF-TRUE, IF-FALSE)
-# -----------------------------
+# b4_yacc_pure_if(IF-TRUE, IF-FALSE)
+# ----------------------------------

 # Expand IF-TRUE, if %pure-parser and %parse-param, IF-FALSE otherwise.
 # Expand IF-TRUE, if %pure-parser and %parse-param, IF-FALSE otherwise.

-m4_define([b4_Pure_if],
+m4_define([b4_yacc_pure_if],

 [b4_pure_if([m4_ifset([b4_parse_param],
 [b4_pure_if([m4_ifset([b4_parse_param],

-                      [$1], [$2])],
-            [$2])])
+                     [$1], [$2])],
+           [$2])])

 
 
 # b4_yyerror_args
 # ---------------
 # Arguments passed to yyerror: user args plus yylloc.
 m4_define([b4_yyerror_args],
 
 
 # b4_yyerror_args
 # ---------------
 # Arguments passed to yyerror: user args plus yylloc.
 m4_define([b4_yyerror_args],

-[b4_Pure_if([b4_location_if([&yylloc, ])])dnl
+[b4_yacc_pure_if([b4_location_if([&yylloc, ])])dnl

 m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
 
 
 m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
 
 


@@ -71,18 +71,19 @@ m4_ifdef([b4_lex_param], b4_lex_param)))
 # b4_int_type(MIN, MAX)
 # ---------------------
 # Return the smallest int type able to handle numbers ranging from
 # b4_int_type(MIN, MAX)
 # ---------------------
 # Return the smallest int type able to handle numbers ranging from

-# MIN to MAX (included).  We overwrite the version from c.m4 which relies
-# on "signed char" which is not portable to old K&R compilers.
+# MIN to MAX (included).  Overwrite the version from c.m4, which
+# uses only C89 types, so that the user can override the shorter
+# types, and so that pre-C89 compilers are handled correctly.

 m4_define([b4_int_type],
 m4_define([b4_int_type],

-[m4_if(b4_ints_in($@,      [0],   [255]), [1], [unsigned char],
-       b4_ints_in($@,   [-128],   [127]), [1], [yysigned_char],
+[m4_if(b4_ints_in($@,      [0],   [255]), [1], [yytype_uint8],
+       b4_ints_in($@,   [-128],   [127]), [1], [yytype_int8],

 
 

-       b4_ints_in($@,      [0], [65535]), [1], [unsigned short int],
-       b4_ints_in($@, [-32768], [32767]), [1], [short int],
+       b4_ints_in($@,      [0], [65535]), [1], [yytype_uint16],
+       b4_ints_in($@, [-32768], [32767]), [1], [yytype_int16],

 
        m4_eval([0 <= $1]),                [1], [unsigned int],
 
 
        m4_eval([0 <= $1]),                [1], [unsigned int],
 

-                                              [int])])
+                                              [int])])

 
 
 ## ----------------- ##
 
 
 ## ----------------- ##


@@ -102,7 +103,7 @@ m4_define([b4_lhs_value],
 # Expansion of $<TYPE>NUM, where the current rule has RULE-LENGTH
 # symbols on RHS.
 m4_define([b4_rhs_value],
 # Expansion of $<TYPE>NUM, where the current rule has RULE-LENGTH
 # symbols on RHS.
 m4_define([b4_rhs_value],

-[(yyvsp@{m4_eval([$2 - $1])@}m4_ifval([$3], [.$3]))])
+[(yyvsp@{($2) - ($1)@}m4_ifval([$3], [.$3]))])

 
 
 
 
 
 


@@ -122,7 +123,7 @@ m4_define([b4_lhs_location],
 # Expansion of @NUM, where the current rule has RULE-LENGTH symbols
 # on RHS.
 m4_define([b4_rhs_location],
 # Expansion of @NUM, where the current rule has RULE-LENGTH symbols
 # on RHS.
 m4_define([b4_rhs_location],

-[(yylsp@{m4_eval([$2 - $1])@})])
+[(yylsp@{($2) - ($1)@})])

 
 
 
 
 
 


@@ -135,15 +136,15 @@ m4_changecom()
 m4_divert(0)dnl
 @output @output_parser_name@
 b4_copyright([Skeleton parser for Yacc-like parsing with Bison],
 m4_divert(0)dnl
 @output @output_parser_name@
 b4_copyright([Skeleton parser for Yacc-like parsing with Bison],

-             [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005])[
+  [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006])[

 
 /* As a special exception, when this file is copied by Bison into a
    Bison output file, you may use that output file without restriction.
    This special exception was added by the Free Software Foundation
    in version 1.24 of Bison.  */
 
 
 /* As a special exception, when this file is copied by Bison into a
    Bison output file, you may use that output file without restriction.
    This special exception was added by the Free Software Foundation
    in version 1.24 of Bison.  */
 

-/* Written by Richard Stallman by simplifying the original so called
-   ``semantic'' parser.  */
+/* C LALR(1) parser skeleton written by Richard Stallman, by
+   simplifying the original so-called "semantic" parser.  */

 
 /* All symbols defined below should begin with yy or YY, to avoid
    infringing on user name space.  This should be done even for local
 
 /* All symbols defined below should begin with yy or YY, to avoid
    infringing on user name space.  This should be done even for local


@@ -187,19 +188,20 @@ b4_location_if([#define yylloc b4_prefix[]lloc])])[
 # define YYTOKEN_TABLE ]b4_token_table[
 #endif
 
 # define YYTOKEN_TABLE ]b4_token_table[
 #endif
 

-#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED

 ]m4_ifdef([b4_stype],
 ]m4_ifdef([b4_stype],

-[b4_syncline([b4_stype_line], [b4_file_name])
-typedef union m4_bregexp(b4_stype, [^{], [YYSTYPE ])b4_stype YYSTYPE;
+[typedef union[]m4_bregexp(b4_stype, [^{], [ YYSTYPE])
+b4_stype

 /* Line __line__ of yacc.c.  */
 /* Line __line__ of yacc.c.  */

-b4_syncline([@oline@], [@ofile@])],
+b4_syncline([@oline@], [@ofile@])
+       YYSTYPE;],

 [typedef int YYSTYPE;])[
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
 # define YYSTYPE_IS_DECLARED 1
 # define YYSTYPE_IS_TRIVIAL 1
 #endif
 
 [typedef int YYSTYPE;])[
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
 # define YYSTYPE_IS_DECLARED 1
 # define YYSTYPE_IS_TRIVIAL 1
 #endif
 

-]b4_location_if([#if ! defined (YYLTYPE) && ! defined (YYLTYPE_IS_DECLARED)
+]b4_location_if([#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED

 typedef struct YYLTYPE
 {
   int first_line;
 typedef struct YYLTYPE
 {
   int first_line;


@@ -219,12 +221,42 @@ typedef struct YYLTYPE
 /* Line __line__ of yacc.c.  */
 b4_syncline([@oline@], [@ofile@])[
 
 /* Line __line__ of yacc.c.  */
 b4_syncline([@oline@], [@ofile@])[
 

+#ifdef short
+# undef short
+#endif
+
+#ifdef YYTYPE_UINT8
+typedef YYTYPE_UINT8 yytype_uint8;
+#else
+typedef unsigned char yytype_uint8;
+#endif
+
+#ifdef YYTYPE_INT8
+typedef YYTYPE_INT8 yytype_int8;
+#elif ]b4_c_modern[
+typedef signed char yytype_int8;
+#else
+typedef short int yytype_int8;
+#endif
+
+#ifdef YYTYPE_UINT16
+typedef YYTYPE_UINT16 yytype_uint16;
+#else
+typedef unsigned short int yytype_uint16;
+#endif
+
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
+

 #ifndef YYSIZE_T
 #ifndef YYSIZE_T

-# if defined (__SIZE_TYPE__)
+# ifdef __SIZE_TYPE__

 #  define YYSIZE_T __SIZE_TYPE__
 #  define YYSIZE_T __SIZE_TYPE__

-# elif defined (size_t)
+# elif defined size_t

 #  define YYSIZE_T size_t
 #  define YYSIZE_T size_t

-# elif ! defined (YYSIZE_T) && (defined (__STDC__) || defined (__cplusplus))
+# elif ! defined YYSIZE_T && ]b4_c_modern[

 #  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
 #  define YYSIZE_T size_t
 # else
 #  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
 #  define YYSIZE_T size_t
 # else


@@ -246,7 +278,24 @@ b4_syncline([@oline@], [@ofile@])[
 # endif
 #endif
 
 # endif
 #endif
 

-#if ! defined (yyoverflow) || YYERROR_VERBOSE
+/* 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)
+#else
+]b4_c_function_def([YYID], [static int], [[int i], [i]])[
+{
+  return i;
+}
+#endif
+
+#if ! defined yyoverflow || YYERROR_VERBOSE

 
 /* The parser invokes alloca or malloc; define the necessary symbols.  */
 
 
 /* The parser invokes alloca or malloc; define the necessary symbols.  */
 


@@ -254,17 +303,16 @@ b4_syncline([@oline@], [@ofile@])[
 #  if YYSTACK_USE_ALLOCA
 #   ifdef __GNUC__
 #    define YYSTACK_ALLOC __builtin_alloca
 #  if YYSTACK_USE_ALLOCA
 #   ifdef __GNUC__
 #    define YYSTACK_ALLOC __builtin_alloca

-#   elif defined (__BUILTIN_VA_ARG_INCR)
+#   elif defined __BUILTIN_VA_ARG_INCR

 #    include <alloca.h> /* INFRINGES ON USER NAME SPACE */
 #    include <alloca.h> /* INFRINGES ON USER NAME SPACE */

-#   elif defined (_AIX)
+#   elif defined _AIX

 #    define YYSTACK_ALLOC __alloca
 #    define YYSTACK_ALLOC __alloca

-#   elif defined (_MSC_VER)
+#   elif defined _MSC_VER

 #    include <malloc.h> /* INFRINGES ON USER NAME SPACE */
 #    define alloca _alloca
 #   else
 #    define YYSTACK_ALLOC alloca
 #    include <malloc.h> /* INFRINGES ON USER NAME SPACE */
 #    define alloca _alloca
 #   else
 #    define YYSTACK_ALLOC alloca

-#    if (! defined (_ALLOCA_H) && ! defined (_STDLIB_H) \
-        && (defined (__STDC__) || defined (__cplusplus)))
+#    if ! defined _ALLOCA_H && ! defined _STDLIB_H && ]b4_c_modern[

 #     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
 #     ifndef _STDLIB_H
 #      define _STDLIB_H 1
 #     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
 #     ifndef _STDLIB_H
 #      define _STDLIB_H 1


@@ -275,14 +323,14 @@ b4_syncline([@oline@], [@ofile@])[
 # endif
 
 # ifdef YYSTACK_ALLOC
 # endif
 
 # ifdef YYSTACK_ALLOC

-   /* Pacify GCC's `empty if-body' warning. */
-#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
+   /* Pacify GCC's `empty if-body' warning.  */
+#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))

 #  ifndef YYSTACK_ALLOC_MAXIMUM
     /* The OS might guarantee only one guard page at the bottom of the stack,
        and a page size can be as small as 4096 bytes.  So we cannot safely
        invoke alloca (N) if N exceeds 4096.  Use a slightly smaller number
        to allow for a few compiler-allocated temporary stack slots.  */
 #  ifndef YYSTACK_ALLOC_MAXIMUM
     /* The OS might guarantee only one guard page at the bottom of the stack,
        and a page size can be as small as 4096 bytes.  So we cannot safely
        invoke alloca (N) if N exceeds 4096.  Use a slightly smaller number
        to allow for a few compiler-allocated temporary stack slots.  */

-#   define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2005 */
+#   define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */

 #  endif
 # else
 #  define YYSTACK_ALLOC YYMALLOC
 #  endif
 # else
 #  define YYSTACK_ALLOC YYMALLOC


@@ -290,39 +338,39 @@ b4_syncline([@oline@], [@ofile@])[
 #  ifndef YYSTACK_ALLOC_MAXIMUM
 #   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
 #  endif
 #  ifndef YYSTACK_ALLOC_MAXIMUM
 #   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
 #  endif

-#  ifdef __cplusplus
-extern "C" {
+#  if (defined __cplusplus && ! defined _STDLIB_H \
+       && ! ((defined YYMALLOC || defined malloc) \
+            && (defined YYFREE || defined free)))
+#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+#   ifndef _STDLIB_H
+#    define _STDLIB_H 1
+#   endif

 #  endif
 #  ifndef YYMALLOC
 #   define YYMALLOC malloc
 #  endif
 #  ifndef YYMALLOC
 #   define YYMALLOC malloc

-#   if (! defined (malloc) && ! defined (_STDLIB_H) \
-       && (defined (__STDC__) || defined (__cplusplus)))
+#   if ! defined malloc && ! defined _STDLIB_H && ]b4_c_modern[

 void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
 #   endif
 #  endif
 #  ifndef YYFREE
 #   define YYFREE free
 void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
 #   endif
 #  endif
 #  ifndef YYFREE
 #   define YYFREE free

-#   if (! defined (free) && ! defined (_STDLIB_H) \
-       && (defined (__STDC__) || defined (__cplusplus)))
+#   if ! defined free && ! defined _STDLIB_H && ]b4_c_modern[

 void free (void *); /* INFRINGES ON USER NAME SPACE */
 #   endif
 #  endif
 void free (void *); /* INFRINGES ON USER NAME SPACE */
 #   endif
 #  endif

-#  ifdef __cplusplus
-}
-#  endif

 # endif
 # endif

-#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */
+#endif /* ! defined yyoverflow || YYERROR_VERBOSE */

 
 
 
 

-#if (! defined (yyoverflow) \
-     && (! defined (__cplusplus) \
-        || (]b4_location_if([[defined (YYLTYPE_IS_TRIVIAL) && YYLTYPE_IS_TRIVIAL \
-             && ]])[defined (YYSTYPE_IS_TRIVIAL) && YYSTYPE_IS_TRIVIAL)))
+#if (! defined yyoverflow \
+     && (! defined __cplusplus \
+        || (]b4_location_if([[defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \
+            && ]])[defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))

 
 /* A type that is properly aligned for any stack member.  */
 union yyalloc
 {
 
 /* A type that is properly aligned for any stack member.  */
 union yyalloc
 {

-  short int yyss;
+  yytype_int16 yyss;

   YYSTYPE yyvs;
   ]b4_location_if([  YYLTYPE yyls;
 ])dnl
   YYSTYPE yyvs;
   ]b4_location_if([  YYLTYPE yyls;
 ])dnl


@@ -335,16 +383,16 @@ union yyalloc
    N elements.  */
 ]b4_location_if(
 [# define YYSTACK_BYTES(N) \
    N elements.  */
 ]b4_location_if(
 [# define YYSTACK_BYTES(N) \

-     ((N) * (sizeof (short int) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+     ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \

       + 2 * YYSTACK_GAP_MAXIMUM)],
 [# define YYSTACK_BYTES(N) \
       + 2 * YYSTACK_GAP_MAXIMUM)],
 [# define YYSTACK_BYTES(N) \

-     ((N) * (sizeof (short int) + sizeof (YYSTYPE))                    \
+     ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \

       + YYSTACK_GAP_MAXIMUM)])[
 
 /* Copy COUNT objects from FROM to TO.  The source and destination do
    not overlap.  */
 # ifndef YYCOPY
       + YYSTACK_GAP_MAXIMUM)])[
 
 /* Copy COUNT objects from FROM to TO.  The source and destination do
    not overlap.  */
 # ifndef YYCOPY

-#  if defined (__GNUC__) && 1 < __GNUC__
+#  if defined __GNUC__ && 1 < __GNUC__

 #   define YYCOPY(To, From, Count) \
       __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
 #  else
 #   define YYCOPY(To, From, Count) \
       __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
 #  else


@@ -355,7 +403,7 @@ union yyalloc
          for (yyi = 0; yyi < (Count); yyi++)   \
            (To)[yyi] = (From)[yyi];            \
        }                                       \
          for (yyi = 0; yyi < (Count); yyi++)   \
            (To)[yyi] = (From)[yyi];            \
        }                                       \

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

 #  endif
 # endif
 
 #  endif
 # endif
 


@@ -373,28 +421,22 @@ union yyalloc
        yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
        yyptr += yynewbytes / sizeof (*yyptr);                          \
       }                                                                        \
        yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
        yyptr += yynewbytes / sizeof (*yyptr);                          \
       }                                                                        \

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

 
 #endif
 
 
 #endif
 

-#if defined (__STDC__) || defined (__cplusplus)
-   typedef signed char yysigned_char;
-#else
-   typedef short int yysigned_char;
-#endif
-
-/* YYFINAL -- State number of the termination state. */
+/* YYFINAL -- State number of the termination state.  */

 #define YYFINAL  ]b4_final_state_number[
 /* YYLAST -- Last index in YYTABLE.  */
 #define YYLAST   ]b4_last[
 
 #define YYFINAL  ]b4_final_state_number[
 /* YYLAST -- Last index in YYTABLE.  */
 #define YYLAST   ]b4_last[
 

-/* YYNTOKENS -- Number of terminals. */
+/* YYNTOKENS -- Number of terminals.  */

 #define YYNTOKENS  ]b4_tokens_number[
 #define YYNTOKENS  ]b4_tokens_number[

-/* YYNNTS -- Number of nonterminals. */
+/* YYNNTS -- Number of nonterminals.  */

 #define YYNNTS  ]b4_nterms_number[
 #define YYNNTS  ]b4_nterms_number[

-/* YYNRULES -- Number of rules. */
+/* YYNRULES -- Number of rules.  */

 #define YYNRULES  ]b4_rules_number[
 #define YYNRULES  ]b4_rules_number[

-/* YYNRULES -- Number of states. */
+/* YYNRULES -- Number of states.  */

 #define YYNSTATES  ]b4_states_number[
 
 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
 #define YYNSTATES  ]b4_states_number[
 
 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */


@@ -418,7 +460,7 @@ static const ]b4_int_type_for([b4_prhs])[ yyprhs[] =
   ]b4_prhs[
 };
 
   ]b4_prhs[
 };
 

-/* YYRHS -- A `-1'-separated list of the rules' RHS. */
+/* YYRHS -- A `-1'-separated list of the rules' RHS.  */

 static const ]b4_int_type_for([b4_rhs])[ yyrhs[] =
 {
   ]b4_rhs[
 static const ]b4_int_type_for([b4_rhs])[ yyrhs[] =
 {
   ]b4_rhs[


@@ -433,7 +475,7 @@ static const ]b4_int_type_for([b4_rline])[ yyrline[] =
 
 #if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
 /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
 
 #if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
 /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.

-   First, the terminals, then, starting at YYNTOKENS, nonterminals. */
+   First, the terminals, then, starting at YYNTOKENS, nonterminals.  */

 static const char *const yytname[] =
 {
   ]b4_tname[
 static const char *const yytname[] =
 {
   ]b4_tname[


@@ -469,7 +511,7 @@ static const ]b4_int_type_for([b4_defact])[ yydefact[] =
   ]b4_defact[
 };
 
   ]b4_defact[
 };
 

-/* YYDEFGOTO[NTERM-NUM]. */
+/* YYDEFGOTO[NTERM-NUM].  */

 static const ]b4_int_type_for([b4_defgoto])[ yydefgoto[] =
 {
   ]b4_defgoto[
 static const ]b4_int_type_for([b4_defgoto])[ yydefgoto[] =
 {
   ]b4_defgoto[


@@ -536,7 +578,7 @@ do                                                          \
       yychar = (Token);                                                \
       yylval = (Value);                                                \
       yytoken = YYTRANSLATE (yychar);                          \
       yychar = (Token);                                                \
       yylval = (Value);                                                \
       yytoken = YYTRANSLATE (yychar);                          \

-      YYPOPSTACK;                                              \
+      YYPOPSTACK (1);                                          \

       goto yybackup;                                           \
     }                                                          \
   else                                                         \
       goto yybackup;                                           \
     }                                                          \
   else                                                         \


@@ -544,7 +586,7 @@ do                                                          \
       yyerror (]b4_yyerror_args[YY_("syntax error: cannot back up")); \
       YYERROR;                                                 \
     }                                                          \
       yyerror (]b4_yyerror_args[YY_("syntax error: cannot back up")); \
       YYERROR;                                                 \
     }                                                          \

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

 
 
 #define YYTERROR       1
 
 
 #define YYTERROR       1


@@ -559,7 +601,7 @@ while (0)
 #ifndef YYLLOC_DEFAULT
 # define YYLLOC_DEFAULT(Current, Rhs, N)                               \
     do                                                                 \
 #ifndef YYLLOC_DEFAULT
 # define YYLLOC_DEFAULT(Current, Rhs, N)                               \
     do                                                                 \

-      if (N)                                                           \
+      if (YYID (N))                                                    \

        {                                                               \
          (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;        \
          (Current).first_column = YYRHSLOC (Rhs, 1).first_column;      \
        {                                                               \
          (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;        \
          (Current).first_column = YYRHSLOC (Rhs, 1).first_column;      \


@@ -573,7 +615,7 @@ while (0)
          (Current).first_column = (Current).last_column =              \
            YYRHSLOC (Rhs, 0).last_column;                              \
        }                                                               \
          (Current).first_column = (Current).last_column =              \
            YYRHSLOC (Rhs, 0).last_column;                              \
        }                                                               \

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

 #endif
 
 
 #endif
 
 


@@ -585,8 +627,8 @@ while (0)
 # if YYLTYPE_IS_TRIVIAL
 #  define YY_LOCATION_PRINT(File, Loc)                 \
      fprintf (File, "%d.%d-%d.%d",                     \
 # if YYLTYPE_IS_TRIVIAL
 #  define YY_LOCATION_PRINT(File, Loc)                 \
      fprintf (File, "%d.%d-%d.%d",                     \

-              (Loc).first_line, (Loc).first_column,    \
-              (Loc).last_line,  (Loc).last_column)
+             (Loc).first_line, (Loc).first_column,     \
+             (Loc).last_line,  (Loc).last_column)

 # else
 #  define YY_LOCATION_PRINT(File, Loc) ((void) 0)
 # endif
 # else
 #  define YY_LOCATION_PRINT(File, Loc) ((void) 0)
 # endif


@@ -604,38 +646,29 @@ while (0)
 /* Enable debugging if requested.  */
 #if YYDEBUG
 
 /* Enable debugging if requested.  */
 #if YYDEBUG
 

-# ifdef YYFPRINTF
-#  define YYFPUTC(Char, Stream) YYFPRINTF (Stream, "%c", Char)
-#  define YYFPUTS(Char, Stream) YYFPRINTF (Stream, "%s", String)
-# else
+# ifndef YYFPRINTF

 #  include <stdio.h> /* INFRINGES ON USER NAME SPACE */
 #  define YYFPRINTF fprintf
 #  include <stdio.h> /* INFRINGES ON USER NAME SPACE */
 #  define YYFPRINTF fprintf

-#  define YYFPUTC fputc
-#  define YYFPUTS fputs

 # endif
 
 # define YYDPRINTF(Args)                       \
 do {                                           \
   if (yydebug)                                 \
     YYFPRINTF Args;                            \
 # endif
 
 # define YYDPRINTF(Args)                       \
 do {                                           \
   if (yydebug)                                 \
     YYFPRINTF Args;                            \

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

 
 

-# define YYDPUTS(String, Stream)               \
-do {                                           \
-  if (yydebug)                                 \
-    YYFPUTS (String, Stream);                  \
-} while (0)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)                   \
+do {                                                                     \
+  if (yydebug)                                                           \
+    {                                                                    \
+      YYFPRINTF (stderr, "%s ", Title);                                          \
+      yy_symbol_print (stderr,                                           \
+                 Type, Value]b4_location_if([, Location])[]b4_user_args[); \
+      YYFPRINTF (stderr, "\n");                                                  \
+    }                                                                    \
+} while (YYID (0))

 
 

-# define YY_SYMBOL_PRINT(Title, Type, Value, Location)         \
-do {                                                           \
-  if (yydebug)                                                 \
-    {                                                          \
-      YYFPRINTF (stderr, "%s ", Title);                                \
-      yysymprint (stderr,                                      \
-                  Type, Value]b4_location_if([, Location])[);  \
-      YYFPUTC ('\n', stderr);                                  \
-    }                                                          \
-} while (0)
+]b4_yy_symbol_print_generate([b4_c_function_def])[

 
 /*------------------------------------------------------------------.
 | yy_stack_print -- Print the state stack from its BOTTOM up to its |
 
 /*------------------------------------------------------------------.
 | yy_stack_print -- Print the state stack from its BOTTOM up to its |


@@ -643,20 +676,20 @@ do {                                                              \
 `------------------------------------------------------------------*/
 
 ]b4_c_function_def([yy_stack_print], [static void],
 `------------------------------------------------------------------*/
 
 ]b4_c_function_def([yy_stack_print], [static void],

-                   [[short int *bottom], [bottom]],
-                   [[short int *top],    [top]])[
+                  [[yytype_int16 *bottom], [bottom]],
+                  [[yytype_int16 *top],    [top]])[

 {
 {

-  YYFPUTS ("Stack now", stderr);
-  for (/* Nothing. */; bottom <= top; ++bottom)
+  YYFPRINTF (stderr, "Stack now");
+  for (; bottom <= top; ++bottom)

     YYFPRINTF (stderr, " %d", *bottom);
     YYFPRINTF (stderr, " %d", *bottom);

-  YYFPUTC ('\n', stderr);
+  YYFPRINTF (stderr, "\n");

 }
 
 # define YY_STACK_PRINT(Bottom, Top)                           \
 do {                                                           \
   if (yydebug)                                                 \
     yy_stack_print ((Bottom), (Top));                          \
 }
 
 # define YY_STACK_PRINT(Bottom, Top)                           \
 do {                                                           \
   if (yydebug)                                                 \
     yy_stack_print ((Bottom), (Top));                          \

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

 
 
 /*------------------------------------------------.
 
 
 /*------------------------------------------------.


@@ -664,36 +697,42 @@ do {                                                              \
 `------------------------------------------------*/
 
 ]b4_c_function_def([yy_reduce_print], [static void],
 `------------------------------------------------*/
 
 ]b4_c_function_def([yy_reduce_print], [static void],

-                   [[int yyrule], [yyrule]])[
+                  [[YYSTYPE *yyvsp], [yyvsp]],
+    b4_location_if([[[YYLTYPE *yylsp], [yylsp]],])
+                  [[int yyrule], [yyrule]]m4_ifset([b4_parse_param], [,])
+                  b4_parse_param)[

 {
 {

+  int yynrhs = yyr2[yyrule];

   int yyi;
   unsigned long int yylno = yyrline[yyrule];
   int yyi;
   unsigned long int yylno = yyrline[yyrule];

-  YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu), ",
-             yyrule - 1, yylno);
-  /* Print the symbols being reduced, and their result.  */
-  for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++)
-    YYFPRINTF (stderr, "%s ", yytname[yyrhs[yyi]]);
-  YYFPRINTF (stderr, "-> %s\n", yytname[yyr1[yyrule]]);
+  YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
+            yyrule - 1, yylno);
+  /* The symbols being reduced.  */
+  for (yyi = 0; yyi < yynrhs; yyi++)
+    {
+      fprintf (stderr, "   $%d = ", yyi + 1);
+      yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+                      &]b4_rhs_value(yynrhs, yyi + 1)[
+                      ]b4_location_if([, &]b4_rhs_location(yynrhs, yyi + 1))[]dnl
+                      b4_user_args[);
+      fprintf (stderr, "\n");
+    }

 }
 
 # define YY_REDUCE_PRINT(Rule)         \
 do {                                   \
   if (yydebug)                         \
 }
 
 # define YY_REDUCE_PRINT(Rule)         \
 do {                                   \
   if (yydebug)                         \

-    yy_reduce_print (Rule);            \
-} while (0)
+    yy_reduce_print (yyvsp, ]b4_location_if([yylsp, ])[Rule]b4_user_args[); \
+} while (YYID (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;

-

 #else /* !YYDEBUG */
 #else /* !YYDEBUG */

-
-# define YYDPUTS(String, File)

 # define YYDPRINTF(Args)
 # define YY_SYMBOL_PRINT(Title, Type, Value, Location)
 # define YY_STACK_PRINT(Bottom, Top)
 # define YY_REDUCE_PRINT(Rule)
 # define YYDPRINTF(Args)
 # define YY_SYMBOL_PRINT(Title, Type, Value, Location)
 # define YY_STACK_PRINT(Bottom, Top)
 # define YY_REDUCE_PRINT(Rule)

-

 #endif /* !YYDEBUG */
 
 
 #endif /* !YYDEBUG */
 
 


@@ -718,42 +757,29 @@ int yydebug;
 #if YYERROR_VERBOSE
 
 # ifndef yystrlen
 #if YYERROR_VERBOSE
 
 # ifndef yystrlen

-#  if defined (__GLIBC__) && defined (_STRING_H)
+#  if defined __GLIBC__ && defined _STRING_H

 #   define yystrlen strlen
 #  else
 /* Return the length of YYSTR.  */
 #   define yystrlen strlen
 #  else
 /* Return the length of YYSTR.  */

-static YYSIZE_T
-#   if defined (__STDC__) || defined (__cplusplus)
-yystrlen (const char *yystr)
-#   else
-yystrlen (yystr)
-     const char *yystr;
-#   endif
+]b4_c_function_def([yystrlen], [static YYSIZE_T],
+   [[const char *yystr], [yystr]])[

 {
 {

-  const char *yys = yystr;
-
-  while (*yys++ != '\0')
+  YYSIZE_T yylen;
+  for (yylen = 0; yystr[yylen]; yylen++)

     continue;
     continue;

-
-  return yys - yystr - 1;
+  return yylen;

 }
 #  endif
 # endif
 
 # ifndef yystpcpy
 }
 #  endif
 # endif
 
 # ifndef yystpcpy

-#  if defined (__GLIBC__) && defined (_STRING_H) && defined (_GNU_SOURCE)
+#  if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE

 #   define yystpcpy stpcpy
 #  else
 /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
    YYDEST.  */
 #   define yystpcpy stpcpy
 #  else
 /* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
    YYDEST.  */

-static char *
-#   if defined (__STDC__) || defined (__cplusplus)
-yystpcpy (char *yydest, const char *yysrc)
-#   else
-yystpcpy (yydest, yysrc)
-     char *yydest;
-     const char *yysrc;
-#   endif
+]b4_c_function_def([yystpcpy], [static char *],
+   [[char *yydest], [yydest]], [[const char *yysrc], [yysrc]])[

 {
   char *yyd = yydest;
   const char *yys = yysrc;
 {
   char *yyd = yydest;
   const char *yys = yysrc;


@@ -841,7 +867,7 @@ yysyntax_error (char *yyresult, int yystate, int yychar)
 
 # if 0
       /* This is so xgettext sees the translatable formats that are
 
 # if 0
       /* This is so xgettext sees the translatable formats that are

-         constructed on the fly.  */
+        constructed on the fly.  */

       YY_("syntax error, unexpected %s");
       YY_("syntax error, unexpected %s, expecting %s");
       YY_("syntax error, unexpected %s, expecting %s or %s");
       YY_("syntax error, unexpected %s");
       YY_("syntax error, unexpected %s, expecting %s");
       YY_("syntax error, unexpected %s, expecting %s or %s");


@@ -854,13 +880,13 @@ yysyntax_error (char *yyresult, int yystate, int yychar)
       static char const yyexpecting[] = ", expecting %s";
       static char const yyor[] = " or %s";
       char yyformat[sizeof yyunexpected
       static char const yyexpecting[] = ", expecting %s";
       static char const yyor[] = " or %s";
       char yyformat[sizeof yyunexpected

-                    + sizeof yyexpecting - 1
-                    + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
-                       * (sizeof yyor - 1))];
+                   + sizeof yyexpecting - 1
+                   + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
+                      * (sizeof yyor - 1))];

       char const *yyprefix = yyexpecting;
 
       /* Start YYX at -YYN if negative to avoid negative indexes in
       char const *yyprefix = yyexpecting;
 
       /* Start YYX at -YYN if negative to avoid negative indexes in

-         YYCHECK.  */
+        YYCHECK.  */

       int yyxbegin = yyn < 0 ? -yyn : 0;
 
       /* Stay within bounds of both yycheck and yytname.  */
       int yyxbegin = yyn < 0 ? -yyn : 0;
 
       /* Stay within bounds of both yycheck and yytname.  */


@@ -872,26 +898,26 @@ yysyntax_error (char *yyresult, int yystate, int yychar)
       yyfmt = yystpcpy (yyformat, yyunexpected);
 
       for (yyx = yyxbegin; yyx < yyxend; ++yyx)
       yyfmt = yystpcpy (yyformat, yyunexpected);
 
       for (yyx = yyxbegin; yyx < yyxend; ++yyx)

-        if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
-          {
-            if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
-              {
-                yycount = 1;
-                yysize = yysize0;
-                yyformat[sizeof yyunexpected - 1] = '\0';
-                break;
-              }
-            yyarg[yycount++] = yytname[yyx];
-            yysize1 = yysize + yytnamerr (0, yytname[yyx]);
-            yysize_overflow |= yysize1 < yysize;
-            yysize = yysize1;
-            yyfmt = yystpcpy (yyfmt, yyprefix);
-            yyprefix = yyor;
-          }
+       if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+         {
+           if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+             {
+               yycount = 1;
+               yysize = yysize0;
+               yyformat[sizeof yyunexpected - 1] = '\0';
+               break;
+             }
+           yyarg[yycount++] = yytname[yyx];
+           yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+           yysize_overflow |= (yysize1 < yysize);
+           yysize = yysize1;
+           yyfmt = yystpcpy (yyfmt, yyprefix);
+           yyprefix = yyor;
+         }

 
       yyf = YY_(yyformat);
       yysize1 = yysize + yystrlen (yyf);
 
       yyf = YY_(yyformat);
       yysize1 = yysize + yystrlen (yyf);

-      yysize_overflow |= yysize1 < yysize;
+      yysize_overflow |= (yysize1 < yysize);

       yysize = yysize1;
 
       if (yysize_overflow)
       yysize = yysize1;
 
       if (yysize_overflow)


@@ -899,51 +925,45 @@ yysyntax_error (char *yyresult, int yystate, int yychar)
 
       if (yyresult)
        {
 
       if (yyresult)
        {

-          /* Avoid sprintf, as that infringes on the user's name space.
-             Don't have undefined behavior even if the translation
-             produced a string with the wrong number of "%s"s.  */
-          char *yyp = yyresult;
-          int yyi = 0;
-          while ((*yyp = *yyf))
-            {
-              if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
-                {
-                  yyp += yytnamerr (yyp, yyarg[yyi++]);
-                  yyf += 2;
-                }
-              else
-                {
-                  yyp++;
-                  yyf++;
-                }
-            }
-        }
+         /* Avoid sprintf, as that infringes on the user's name space.
+            Don't have undefined behavior even if the translation
+            produced a string with the wrong number of "%s"s.  */
+         char *yyp = yyresult;
+         int yyi = 0;
+         while ((*yyp = *yyf) != '\0')
+           {
+             if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
+               {
+                 yyp += yytnamerr (yyp, yyarg[yyi++]);
+                 yyf += 2;
+               }
+             else
+               {
+                 yyp++;
+                 yyf++;
+               }
+           }
+       }

       return yysize;
     }
 }
 #endif /* YYERROR_VERBOSE */
 \f
 
       return yysize;
     }
 }
 #endif /* YYERROR_VERBOSE */
 \f
 

-#if YYDEBUG
-]b4_yysymprint_generate([b4_c_function_def])[
-#endif /* ! YYDEBUG */
-]b4_yydestruct_generate([b4_c_function_def])
+]b4_yydestruct_generate([b4_c_function_def])[

 \f
 
 /* Prevent warnings from -Wmissing-prototypes.  */
 
 #ifdef YYPARSE_PARAM
 \f
 
 /* Prevent warnings from -Wmissing-prototypes.  */
 
 #ifdef YYPARSE_PARAM

-# if defined (__STDC__) || defined (__cplusplus)
-int yyparse (void *YYPARSE_PARAM);
-# else
-int yyparse ();
-# endif
+]b4_c_function_decl([yyparse], [int],
+   [[void *YYPARSE_PARAM], [YYPARSE_PARAM]])[

 #else /* ! YYPARSE_PARAM */
 #else /* ! YYPARSE_PARAM */

-b4_c_function_decl([yyparse], [int], b4_parse_param)
+]b4_c_function_decl([yyparse], [int], b4_parse_param)[

 #endif /* ! YYPARSE_PARAM */
 
 
 #endif /* ! YYPARSE_PARAM */
 
 

-m4_divert_push([KILL])# ======================== M4 code.
+]m4_divert_push([KILL])# ======================== M4 code.

 # b4_declare_parser_variables
 # ---------------------------
 # Declare the variables that are global, or local to YYPARSE if
 # b4_declare_parser_variables
 # ---------------------------
 # Declare the variables that are global, or local to YYPARSE if


@@ -963,7 +983,7 @@ YYLTYPE yylloc;])
 m4_divert_pop([KILL])dnl# ====================== End of M4 code.
 
 b4_pure_if([],
 m4_divert_pop([KILL])dnl# ====================== End of M4 code.
 
 b4_pure_if([],

-           [b4_declare_parser_variables])
+          [b4_declare_parser_variables])

 
 
 /*----------.
 
 
 /*----------.


@@ -971,12 +991,7 @@ b4_pure_if([],
 `----------*/
 
 #ifdef YYPARSE_PARAM
 `----------*/
 
 #ifdef YYPARSE_PARAM

-# if defined (__STDC__) || defined (__cplusplus)
-int yyparse (void *YYPARSE_PARAM)
-# else
-int yyparse (YYPARSE_PARAM)
-  void *YYPARSE_PARAM;
-# endif
+b4_c_function_def([yyparse], [int], [[void *YYPARSE_PARAM], [YYPARSE_PARAM]])

 #else /* ! YYPARSE_PARAM */
 b4_c_function_def([yyparse], [int], b4_parse_param)
 #endif
 #else /* ! YYPARSE_PARAM */
 b4_c_function_def([yyparse], [int], b4_parse_param)
 #endif


@@ -1005,9 +1020,9 @@ b4_c_function_def([yyparse], [int], b4_parse_param)
      to reallocate them elsewhere.  */
 
   /* The state stack.  */
      to reallocate them elsewhere.  */
 
   /* The state stack.  */

-  short int yyssa[YYINITDEPTH];
-  short int *yyss = yyssa;
-  short int *yyssp;
+  yytype_int16 yyssa[YYINITDEPTH];
+  yytype_int16 *yyss = yyssa;
+  yytype_int16 *yyssp;

 
   /* The semantic value stack.  */
   YYSTYPE yyvsa[YYINITDEPTH];
 
   /* The semantic value stack.  */
   YYSTYPE yyvsa[YYINITDEPTH];


@@ -1019,10 +1034,10 @@ b4_c_function_def([yyparse], [int], b4_parse_param)
   YYLTYPE yylsa[YYINITDEPTH];
   YYLTYPE *yyls = yylsa;
   YYLTYPE *yylsp;
   YYLTYPE yylsa[YYINITDEPTH];
   YYLTYPE *yyls = yylsa;
   YYLTYPE *yylsp;

-  /* The locations where the error started and ended. */
+  /* The locations where the error started and ended.  */

   YYLTYPE yyerror_range[2];]])[
 
   YYLTYPE yyerror_range[2];]])[
 

-#define YYPOPSTACK   (yyvsp--, yyssp--]b4_location_if([, yylsp--])[)
+#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N)]b4_location_if([, yylsp -= (N)])[)

 
   YYSIZE_T yystacksize = YYINITDEPTH;
 
 
   YYSIZE_T yystacksize = YYINITDEPTH;
 


@@ -1031,11 +1046,11 @@ b4_c_function_def([yyparse], [int], b4_parse_param)
   YYSTYPE yyval;
 ]b4_location_if([  YYLTYPE yyloc;])[
 
   YYSTYPE yyval;
 ]b4_location_if([  YYLTYPE yyloc;])[
 

-  /* When reducing, the number of symbols on the RHS of the reduced
-     rule.  */
-  int yylen;
+  /* The number of symbols on the RHS of the reduced rule.
+     Keep to zero when no symbol should be popped.  */
+  int yylen = 0;

 
 

-  YYDPUTS ("Starting parse\n", stderr);
+  YYDPRINTF ((stderr, "Starting parse\n"));

 
   yystate = 0;
   yyerrstatus = 0;
 
   yystate = 0;
   yyerrstatus = 0;


@@ -1059,7 +1074,7 @@ b4_c_function_def([yyparse], [int], b4_parse_param)
 m4_ifdef([b4_initial_action], [
 m4_pushdef([b4_at_dollar],     [m4_define([b4_at_dollar_used])yylloc])dnl
 m4_pushdef([b4_dollar_dollar], [m4_define([b4_dollar_dollar_used])yylval])dnl
 m4_ifdef([b4_initial_action], [
 m4_pushdef([b4_at_dollar],     [m4_define([b4_at_dollar_used])yylloc])dnl
 m4_pushdef([b4_dollar_dollar], [m4_define([b4_dollar_dollar_used])yylval])dnl

-  /* User initialization code. */
+  /* User initialization code.  */

 b4_initial_action
 m4_popdef([b4_dollar_dollar])dnl
 m4_popdef([b4_at_dollar])dnl
 b4_initial_action
 m4_popdef([b4_dollar_dollar])dnl
 m4_popdef([b4_at_dollar])dnl


@@ -1077,8 +1092,7 @@ m4_ifdef([b4_at_dollar_used], [[  yylsp[0] = yylloc;
 `------------------------------------------------------------*/
  yynewstate:
   /* In all cases, when you get here, the value and location stacks
 `------------------------------------------------------------*/
  yynewstate:
   /* In all cases, when you get here, the value and location stacks

-     have just been pushed. so pushing a state here evens the stacks.
-     */
+     have just been pushed.  So pushing a state here evens the stacks.  */

   yyssp++;
 
  yysetstate:
   yyssp++;
 
  yysetstate:


@@ -1091,11 +1105,11 @@ m4_ifdef([b4_at_dollar_used], [[  yylsp[0] = yylloc;
 
 #ifdef yyoverflow
       {
 
 #ifdef yyoverflow
       {

-       /* Give user a chance to reallocate the stack. Use copies of
+       /* Give user a chance to reallocate the stack.  Use copies of

           these so that the &'s don't force the real ones into
           memory.  */
        YYSTYPE *yyvs1 = yyvs;
           these so that the &'s don't force the real ones into
           memory.  */
        YYSTYPE *yyvs1 = yyvs;

-       short int *yyss1 = yyss;
+       yytype_int16 *yyss1 = yyss;

 ]b4_location_if([      YYLTYPE *yyls1 = yyls;])[
 
        /* Each stack pointer address is followed by the size of the
 ]b4_location_if([      YYLTYPE *yyls1 = yyls;])[
 
        /* Each stack pointer address is followed by the size of the


@@ -1123,7 +1137,7 @@ m4_ifdef([b4_at_dollar_used], [[  yylsp[0] = yylloc;
        yystacksize = YYMAXDEPTH;
 
       {
        yystacksize = YYMAXDEPTH;
 
       {

-       short int *yyss1 = yyss;
+       yytype_int16 *yyss1 = yyss;

        union yyalloc *yyptr =
          (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
        if (! yyptr)
        union yyalloc *yyptr =
          (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
        if (! yyptr)


@@ -1158,12 +1172,10 @@ m4_ifdef([b4_at_dollar_used], [[  yylsp[0] = yylloc;
 `-----------*/
 yybackup:
 
 `-----------*/
 yybackup:
 

-/* Do appropriate processing given the current state.  */
-/* Read a look-ahead token if we need one and don't already have one.  */
-/* yyresume: */
+  /* Do appropriate processing given the current state.  Read a
+     look-ahead token if we need one and don't already have one.  */

 
   /* First try to decide what to do without reference to look-ahead token.  */
 
   /* First try to decide what to do without reference to look-ahead token.  */

-

   yyn = yypact[yystate];
   if (yyn == YYPACT_NINF)
     goto yydefault;
   yyn = yypact[yystate];
   if (yyn == YYPACT_NINF)
     goto yydefault;


@@ -1173,14 +1185,14 @@ yybackup:
   /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol.  */
   if (yychar == YYEMPTY)
     {
   /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol.  */
   if (yychar == YYEMPTY)
     {

-      YYDPUTS ("Reading a token: ", stderr);
+      YYDPRINTF ((stderr, "Reading a token: "));

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

-      YYDPUTS ("Now at end of input.\n", stderr);
+      YYDPRINTF ((stderr, "Now at end of input.\n"));

     }
   else
     {
     }
   else
     {


@@ -1205,22 +1217,21 @@ yybackup:
   if (yyn == YYFINAL)
     YYACCEPT;
 
   if (yyn == YYFINAL)
     YYACCEPT;
 

+  /* Count tokens shifted since error; after three, turn off error
+     status.  */
+  if (yyerrstatus)
+    yyerrstatus--;
+

   /* Shift the look-ahead token.  */
   YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
 
   /* Shift the look-ahead token.  */
   YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
 

-  /* Discard the token being shifted unless it is eof.  */
+  /* Discard the shifted token unless it is eof.  */

   if (yychar != YYEOF)
     yychar = YYEMPTY;
 
   if (yychar != YYEOF)
     yychar = YYEMPTY;
 

+  yystate = yyn;

   *++yyvsp = yylval;
 ]b4_location_if([  *++yylsp = yylloc;])[
   *++yyvsp = yylval;
 ]b4_location_if([  *++yylsp = yylloc;])[

-
-  /* Count tokens shifted since error; after three, turn off error
-     status.  */
-  if (yyerrstatus)
-    yyerrstatus--;
-
-  yystate = yyn;

   goto yynewstate;
 
 
   goto yynewstate;
 
 


@@ -1252,22 +1263,20 @@ yyreduce:
   yyval = yyvsp[1-yylen];
 
 ]b4_location_if(
   yyval = yyvsp[1-yylen];
 
 ]b4_location_if(

-[[  /* Default location. */
-  YYLLOC_DEFAULT (yyloc, yylsp - yylen, yylen);]])[
+[[  /* Default location.  */
+  YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);]])[

   YY_REDUCE_PRINT (yyn);
   switch (yyn)
   YY_REDUCE_PRINT (yyn);
   switch (yyn)

-    ]{
-      b4_actions
+    {
+      ]b4_actions
+/* Line __line__ of yacc.c.  */
+b4_syncline([@oline@], [@ofile@])[

       default: break;
     }
       default: break;
     }

+  YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);

 
 

-/* Line __line__ of yacc.c.  */
-b4_syncline([@oline@], [@ofile@])
-\f
-[  yyvsp -= yylen;
-  yyssp -= yylen;
-]b4_location_if([  yylsp -= yylen;])[
-
+  YYPOPSTACK (yylen);
+  yylen = 0;

   YY_STACK_PRINT (yyss, yyssp);
 
   *++yyvsp = yyval;
   YY_STACK_PRINT (yyss, yyssp);
 
   *++yyvsp = yyval;


@@ -1341,14 +1350,15 @@ yyerrlab:
         error, discard it.  */
 
       if (yychar <= YYEOF)
         error, discard it.  */
 
       if (yychar <= YYEOF)

-        {
+       {

          /* Return failure if at end of input.  */
          if (yychar == YYEOF)
            YYABORT;
          /* Return failure if at end of input.  */
          if (yychar == YYEOF)
            YYABORT;

-        }
+       }

       else
        {
       else
        {

-         yydestruct ("Error: discarding", yytoken, &yylval]b4_location_if([, &yylloc])[);
+         yydestruct ("Error: discarding",
+                     yytoken, &yylval]b4_location_if([, &yylloc])[]b4_user_args[);

          yychar = YYEMPTY;
        }
     }
          yychar = YYEMPTY;
        }
     }


@@ -1366,13 +1376,15 @@ yyerrorlab:
   /* Pacify compilers like GCC when the user code never invokes
      YYERROR and the label yyerrorlab therefore never appears in user
      code.  */
   /* Pacify compilers like GCC when the user code never invokes
      YYERROR and the label yyerrorlab therefore never appears in user
      code.  */

-  if (0)
+  if (/*CONSTCOND*/ 0)

      goto yyerrorlab;
 
 ]b4_location_if([[  yyerror_range[0] = yylsp[1-yylen];
      goto yyerrorlab;
 
 ]b4_location_if([[  yyerror_range[0] = yylsp[1-yylen];

-  yylsp -= yylen;
-  ]])[yyvsp -= yylen;
-  yyssp -= yylen;
+]])[  /* Do not reclaim the symbols of the rule which action triggered
+     this YYERROR.  */
+  YYPOPSTACK (yylen);
+  yylen = 0;
+  YY_STACK_PRINT (yyss, yyssp);

   yystate = *yyssp;
   goto yyerrlab1;
 
   yystate = *yyssp;
   goto yyerrlab1;
 


@@ -1402,8 +1414,9 @@ yyerrlab1:
        YYABORT;
 
 ]b4_location_if([[      yyerror_range[0] = *yylsp;]])[
        YYABORT;
 
 ]b4_location_if([[      yyerror_range[0] = *yylsp;]])[

-      yydestruct ("Error: popping", yystos[yystate], yyvsp]b4_location_if([, yylsp])[);
-      YYPOPSTACK;
+      yydestruct ("Error: popping",
+                 yystos[yystate], yyvsp]b4_location_if([, yylsp])[]b4_user_args[);
+      YYPOPSTACK (1);

       yystate = *yyssp;
       YY_STACK_PRINT (yyss, yyssp);
     }
       yystate = *yyssp;
       YY_STACK_PRINT (yyss, yyssp);
     }


@@ -1415,11 +1428,11 @@ yyerrlab1:
 ]b4_location_if([[
   yyerror_range[1] = yylloc;
   /* Using YYLLOC is tempting, but would change the location of
 ]b4_location_if([[
   yyerror_range[1] = yylloc;
   /* Using YYLLOC is tempting, but would change the location of

-     the look-ahead.  YYLOC is available though. */
-  YYLLOC_DEFAULT (yyloc, yyerror_range - 1, 2);
+     the look-ahead.  YYLOC is available though.  */
+  YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);

   *++yylsp = yyloc;]])[
 
   *++yylsp = yyloc;]])[
 

-  /* Shift the error token. */
+  /* Shift the error token.  */

   YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
 
   yystate = yyn;
   YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
 
   yystate = yyn;


@@ -1453,12 +1466,16 @@ yyexhaustedlab:
 yyreturn:
   if (yychar != YYEOF && yychar != YYEMPTY)
      yydestruct ("Cleanup: discarding lookahead",
 yyreturn:
   if (yychar != YYEOF && yychar != YYEMPTY)
      yydestruct ("Cleanup: discarding lookahead",

-                yytoken, &yylval]b4_location_if([, &yylloc])[);
+                yytoken, &yylval]b4_location_if([, &yylloc])[]b4_user_args[);
+  /* Do not reclaim the symbols of the rule which action triggered
+     this YYABORT or YYACCEPT.  */
+  YYPOPSTACK (yylen);
+  YY_STACK_PRINT (yyss, yyssp);

   while (yyssp != yyss)
     {
       yydestruct ("Cleanup: popping",
   while (yyssp != yyss)
     {
       yydestruct ("Cleanup: popping",

-                 yystos[*yyssp], yyvsp]b4_location_if([, yylsp])[);
-      YYPOPSTACK;
+                 yystos[*yyssp], yyvsp]b4_location_if([, yylsp])[]b4_user_args[);
+      YYPOPSTACK (1);

     }
 #ifndef yyoverflow
   if (yyss != yyssa)
     }
 #ifndef yyoverflow
   if (yyss != yyssa)


@@ -1476,7 +1493,7 @@ b4_epilogue
 m4_if(b4_defines_flag, 0, [],
 [@output @output_header_name@
 b4_copyright([Skeleton parser for Yacc-like parsing with Bison],
 m4_if(b4_defines_flag, 0, [],
 [@output @output_header_name@
 b4_copyright([Skeleton parser for Yacc-like parsing with Bison],

-             [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005])
+  [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006])

 
 /* As a special exception, when this file is copied by Bison into a
    Bison output file, you may use that output file without restriction.
 
 /* As a special exception, when this file is copied by Bison into a
    Bison output file, you may use that output file without restriction.


@@ -1485,12 +1502,13 @@ b4_copyright([Skeleton parser for Yacc-like parsing with Bison],
 
 b4_token_enums_defines(b4_tokens)
 
 
 b4_token_enums_defines(b4_tokens)
 

-#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED

 m4_ifdef([b4_stype],
 m4_ifdef([b4_stype],

-[b4_syncline([b4_stype_line], [b4_file_name])
-typedef union m4_bregexp(b4_stype, [^{], [YYSTYPE ])b4_stype YYSTYPE;
+[typedef union[]m4_bregexp(b4_stype, [^{], [ YYSTYPE])
+b4_stype

 /* Line __line__ of yacc.c.  */
 /* Line __line__ of yacc.c.  */

-b4_syncline([@oline@], [@ofile@])],
+b4_syncline([@oline@], [@ofile@])
+       YYSTYPE;],

 [typedef int YYSTYPE;])
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
 # define YYSTYPE_IS_DECLARED 1
 [typedef int YYSTYPE;])
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
 # define YYSTYPE_IS_DECLARED 1


@@ -1501,7 +1519,7 @@ b4_pure_if([],
 [extern YYSTYPE b4_prefix[]lval;])
 
 b4_location_if(
 [extern YYSTYPE b4_prefix[]lval;])
 
 b4_location_if(

-[#if ! defined (YYLTYPE) && ! defined (YYLTYPE_IS_DECLARED)
+[#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED

 typedef struct YYLTYPE
 {
   int first_line;
 typedef struct YYLTYPE
 {
   int first_line;