X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/5348bfbe2923560fe0e03a486466a738a392626c..c50befe6152b25faa8d872d3ac97812e1ae85f43:/data/yacc.c?ds=sidebyside
diff --git a/data/yacc.c b/data/yacc.c
index 845077eb..4274673d 100644
--- a/data/yacc.c
+++ b/data/yacc.c
@@ -1,25 +1,42 @@
-m4_divert(-1) -*- C -*-
+ -*- C -*-
# Yacc compatible skeleton for Bison
-# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003
-# Free Software Foundation, Inc.
-# This program is free software; you can redistribute it and/or modify
+# Copyright (C) 1984, 1989-1990, 2000-2010 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
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
-
+#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
-
+#
# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-# 02111-1307 USA
-
-
+# along with this program. If not, see .
+
+# Check the value of %define api.push-pull.
+b4_percent_define_default([[api.push-pull]], [[pull]])
+b4_percent_define_check_values([[[[api.push-pull]],
+ [[pull]], [[push]], [[both]]]])
+b4_define_flag_if([pull]) m4_define([b4_pull_flag], [[1]])
+b4_define_flag_if([push]) m4_define([b4_push_flag], [[1]])
+m4_case(b4_percent_define_get([[api.push-pull]]),
+ [pull], [m4_define([b4_push_flag], [[0]])],
+ [push], [m4_define([b4_pull_flag], [[0]])])
+
+# Handle BISON_USE_PUSH_FOR_PULL for the test suite. So that push parsing
+# tests function as written, don't let BISON_USE_PUSH_FOR_PULL modify Bison's
+# behavior at all when push parsing is already requested.
+b4_define_flag_if([use_push_for_pull])
+b4_use_push_for_pull_if([
+ b4_push_if([m4_define([b4_use_push_for_pull_flag], [[0]])],
+ [m4_define([b4_push_flag], [[1]])])])
+
+m4_include(b4_pkgdatadir/[c.m4])
## ---------------- ##
## Default values. ##
@@ -34,21 +51,25 @@ m4_define_default([b4_stack_depth_init], [200])
## Pure/impure interfaces. ##
## ------------------------ ##
+b4_percent_define_default([[api.pure]], [[false]])
+b4_define_flag_if([pure])
+m4_define([b4_pure_flag],
+ [b4_percent_define_flag_if([[api.pure]], [[1]], [[0]])])
-# 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.
-m4_define([b4_Pure_if],
+m4_define([b4_yacc_pure_if],
[b4_pure_if([m4_ifset([b4_parse_param],
- [$1], [$2])],
- [$2])])
+ [$1], [$2])],
+ [$2])])
# b4_yyerror_args
# ---------------
# Arguments passed to yyerror: user args plus yylloc.
m4_define([b4_yyerror_args],
-[b4_Pure_if([b4_location_if([&yylloc, ])])dnl
+[b4_yacc_pure_if([b4_locations_if([&yylloc, ])])dnl
m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
@@ -58,11 +79,10 @@ m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
# b4_lex_param arrives quoted twice, but we want to keep only one level.
m4_define([b4_lex_param],
m4_dquote(b4_pure_if([[[[YYSTYPE *]], [[&yylval]]][]dnl
-b4_location_if([, [[YYLTYPE *], [&yylloc]]])m4_ifdef([b4_lex_param], [, ])])dnl
+b4_locations_if([, [[YYLTYPE *], [&yylloc]]])m4_ifdef([b4_lex_param], [, ])])dnl
m4_ifdef([b4_lex_param], b4_lex_param)))
-
## ------------ ##
## Data Types. ##
## ------------ ##
@@ -70,18 +90,19 @@ m4_ifdef([b4_lex_param], b4_lex_param)))
# b4_int_type(MIN, MAX)
# ---------------------
# Return the smallest int type able to handle numbers ranging from
-# MIN to MAX (included). We overwrite the version from c.m4 which relies
-# on "signed char" which is not portable to old K&R compilers.
+# MIN to MAX (included). Overwrite the version from c.m4, which
+# uses only C89 types, so that the user can override the shorter
+# types, and so that pre-C89 compilers are handled correctly.
m4_define([b4_int_type],
-[m4_if(b4_ints_in($@, [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],
- b4_ints_in($@, [-32768], [32767]), [1], [short],
+ b4_ints_in($@, [0], [65535]), [1], [yytype_uint16],
+ b4_ints_in($@, [-32768], [32767]), [1], [yytype_int16],
m4_eval([0 <= $1]), [1], [unsigned int],
- [int])])
+ [int])])
## ----------------- ##
@@ -93,7 +114,7 @@ m4_define([b4_int_type],
# --------------------
# Expansion of $$.
m4_define([b4_lhs_value],
-[yyval[]m4_ifval([$1], [.$1])])
+[(yyval[]m4_ifval([$1], [.$1]))])
# b4_rhs_value(RULE-LENGTH, NUM, [TYPE])
@@ -101,7 +122,7 @@ m4_define([b4_lhs_value],
# Expansion of $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]))])
@@ -113,7 +134,7 @@ m4_define([b4_rhs_value],
# -----------------
# Expansion of @$.
m4_define([b4_lhs_location],
-[yyloc])
+[(yyloc)])
# b4_rhs_location(RULE-LENGTH, NUM)
@@ -121,8 +142,70 @@ m4_define([b4_lhs_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)@})])
+
+
+## ------------------ ##
+## Parser variables. ##
+## ------------------ ##
+
+# b4_declare_scanner_communication_variables
+# ------------------------------------------
+# Declare the variables that are global, or local to YYPARSE if
+# pure-parser.
+m4_define([b4_declare_scanner_communication_variables], [[
+/* The lookahead symbol. */
+int yychar;
+
+/* The semantic value of the lookahead symbol. */
+YYSTYPE yylval;]b4_locations_if([[
+
+/* Location data for the lookahead symbol. */
+YYLTYPE yylloc;]])b4_pure_if([], [[
+
+/* Number of syntax errors so far. */
+int yynerrs;]])])
+
+
+# b4_declare_parser_state_variables
+# ---------------------------------
+# Declare all the variables that are needed to maintain the parser state
+# between calls to yypush_parse.
+m4_define([b4_declare_parser_state_variables], [b4_pure_if([[
+ /* Number of syntax errors so far. */
+ int yynerrs;
+]])[
+ int yystate;
+ /* Number of tokens to shift before error messages enabled. */
+ int yyerrstatus;
+
+ /* The stacks and their tools:
+ `yyss': related to states.
+ `yyvs': related to semantic values.]b4_locations_if([[
+ `yyls': related to locations.]])[
+
+ Refer to the stacks thru separate pointers, to allow yyoverflow
+ to reallocate them elsewhere. */
+
+ /* The state stack. */
+ yytype_int16 yyssa[YYINITDEPTH];
+ yytype_int16 *yyss;
+ yytype_int16 *yyssp;
+
+ /* The semantic value stack. */
+ YYSTYPE yyvsa[YYINITDEPTH];
+ YYSTYPE *yyvs;
+ YYSTYPE *yyvsp;]b4_locations_if([[
+
+ /* The location stack. */
+ YYLTYPE yylsa[YYINITDEPTH];
+ YYLTYPE *yyls;
+ YYLTYPE *yylsp;
+ /* The locations where the error started and ended. */
+ YYLTYPE yyerror_range[2];]])[
+
+ YYSIZE_T yystacksize;]])
## --------------------------------------------------------- ##
@@ -131,18 +214,13 @@ m4_define([b4_rhs_location],
# We do want M4 expansion after # for CPP macros.
m4_changecom()
-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])[
-
-/* 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. */
+m4_divert_push(0)dnl
+@output(b4_parser_file_name@)@
+b4_copyright([Skeleton implementation for Bison's Yacc-like parsers in C],
+ [1984, 1989-1990, 2000-2010])[
-/* 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
@@ -152,26 +230,29 @@ b4_copyright([Skeleton parser for Yacc-like parsing with Bison],
USER NAME SPACE" below. */
]b4_identification
-m4_if(b4_prefix[], [yy], [],
-[/* If NAME_PREFIX is specified substitute the variables and functions
- 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_location_if([#define yylloc b4_prefix[]lloc])])[
-
-]b4_token_defines(b4_tokens)[
+b4_percent_code_get([[top]])[]dnl
+m4_if(b4_prefix, [yy], [],
+[[/* Substitute the variable and function names. */]b4_pull_if([[
+#define yyparse ]b4_prefix[parse]])b4_push_if([[
+#define yypush_parse ]b4_prefix[push_parse]b4_pull_if([[
+#define yypull_parse ]b4_prefix[pull_parse]])[
+#define yypstate_new ]b4_prefix[pstate_new
+#define yypstate_delete ]b4_prefix[pstate_delete
+#define yypstate ]b4_prefix[pstate]])[
+#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]])])[
/* Copy the first part of user declarations. */
-]b4_pre_prologue[
+]b4_user_pre_prologue[
/* Enabling traces. */
#ifndef YYDEBUG
-# define YYDEBUG ]b4_debug[
+# define YYDEBUG ]b4_debug_flag[
#endif
/* Enabling verbose error messages. */
@@ -179,22 +260,33 @@ b4_location_if([#define yylloc b4_prefix[]lloc])])[
# undef YYERROR_VERBOSE
# define YYERROR_VERBOSE 1
#else
-# define YYERROR_VERBOSE ]b4_error_verbose[
+# define YYERROR_VERBOSE ]b4_error_verbose_flag[
+#endif
+
+/* Enabling the token table. */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE ]b4_token_table[
#endif
-#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
+]b4_percent_code_get([[requires]])[]dnl
+
+b4_token_enums_defines(b4_tokens)[
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
]m4_ifdef([b4_stype],
-[b4_syncline([b4_stype_line], [b4_filename])
-typedef union m4_bregexp(b4_stype, [^{], [YYSTYPE ])b4_stype YYSTYPE;
-/* Line __line__ of yacc.c. */
-b4_syncline([@oline@], [@ofile@])],
-[typedef int YYSTYPE;])[
+[[typedef union ]b4_union_name[
+{
+]b4_user_stype[
+} YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1]],
+[m4_if(b4_tag_seen_flag, 0,
+[[typedef int YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1]])])[
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
-# define YYSTYPE_IS_TRIVIAL 1
-#endif
+#endif]b4_locations_if([[
-]b4_location_if([#if ! defined (YYLTYPE) && ! defined (YYLTYPE_IS_DECLARED)
+#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
typedef struct YYLTYPE
{
int first_line;
@@ -205,96 +297,219 @@ typedef struct YYLTYPE
# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
# define YYLTYPE_IS_DECLARED 1
# define YYLTYPE_IS_TRIVIAL 1
+#endif]])b4_push_if([[
+
+#ifndef YYPUSH_DECLS
+# define YYPUSH_DECLS
+struct yypstate;
+typedef struct yypstate yypstate;
+enum { YYPUSH_MORE = 4 };
+
+]b4_pull_if([b4_c_function_decl([[yyparse]], [[int]], b4_parse_param)
+])b4_c_function_decl([[yypush_parse]], [[int]],
+ [[[yypstate *yyps]], [[yyps]]]b4_pure_if([,
+ [[[int yypushed_char]], [[yypushed_char]]],
+ [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
+ [[[YYLTYPE const *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
+ b4_parse_param]))
+b4_pull_if([b4_c_function_decl([[yypull_parse]], [[int]],
+ [[[yypstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
+ b4_parse_param]))])
+b4_c_function_decl([[yypstate_new]], [[yypstate *]], [[[void]], []])
+b4_c_function_decl([[yypstate_delete]], [[void]],
+ [[[yypstate *yyps]], [[yyps]]])[
+#endif]])
+
+b4_percent_code_get([[provides]])[]dnl
+
+[/* Copy the second part of user declarations. */
+]b4_user_post_prologue
+b4_percent_code_get[]dnl
+
+[#ifdef short
+# undef short
#endif
-])[
-/* Copy the second part of user declarations. */
-]b4_post_prologue
+#ifdef YYTYPE_UINT8
+typedef YYTYPE_UINT8 yytype_uint8;
+#else
+typedef unsigned char yytype_uint8;
+#endif
-/* Line __line__ of yacc.c. */
-b4_syncline([@oline@], [@ofile@])[
+#ifdef YYTYPE_INT8
+typedef YYTYPE_INT8 yytype_int8;
+#elif ]b4_c_modern[
+typedef signed char yytype_int8;
+#else
+typedef short int yytype_int8;
+#endif
-#if ! defined (yyoverflow) || YYERROR_VERBOSE
+#ifdef YYTYPE_UINT16
+typedef YYTYPE_UINT16 yytype_uint16;
+#else
+typedef unsigned short int yytype_uint16;
+#endif
-# ifndef YYFREE
-# define YYFREE free
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
+
+#ifndef YYSIZE_T
+# ifdef __SIZE_TYPE__
+# define YYSIZE_T __SIZE_TYPE__
+# elif defined size_t
+# define YYSIZE_T size_t
+# elif ! defined YYSIZE_T && ]b4_c_modern[
+# include /* INFRINGES ON USER NAME SPACE */
+# define YYSIZE_T size_t
+# else
+# define YYSIZE_T unsigned int
# endif
-# ifndef YYMALLOC
-# define YYMALLOC malloc
+#endif
+
+#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
+
+#ifndef YY_
+# if defined YYENABLE_NLS && YYENABLE_NLS
+# if ENABLE_NLS
+# include /* INFRINGES ON USER NAME SPACE */
+# define YY_(msgid) dgettext ("bison-runtime", msgid)
+# endif
+# endif
+# ifndef YY_
+# define YY_(msgid) msgid
# 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)
+#else
+]b4_c_function_def([YYID], [static int], [[int yyi], [yyi]])[
+{
+ return yyi;
+}
+#endif
+
+#if ! defined yyoverflow || YYERROR_VERBOSE
-/* The parser invokes alloca or malloc; define the necessary symbols. */
+]b4_push_if([],
+[[/* The parser invokes alloca or malloc; define the necessary symbols. */
# ifdef YYSTACK_USE_ALLOCA
# if YYSTACK_USE_ALLOCA
-# define YYSTACK_ALLOC alloca
-# endif
-# else
-# if defined (alloca) || defined (_ALLOCA_H)
-# define YYSTACK_ALLOC alloca
-# else
# ifdef __GNUC__
# define YYSTACK_ALLOC __builtin_alloca
+# elif defined __BUILTIN_VA_ARG_INCR
+# include /* INFRINGES ON USER NAME SPACE */
+# elif defined _AIX
+# define YYSTACK_ALLOC __alloca
+# elif defined _MSC_VER
+# include /* INFRINGES ON USER NAME SPACE */
+# define alloca _alloca
+# else
+# define YYSTACK_ALLOC alloca
+# if ! defined _ALLOCA_H && ! defined _STDLIB_H && ]b4_c_modern[
+# include /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
# endif
# endif
# endif
-# ifdef YYSTACK_ALLOC
- /* Pacify GCC's `empty if-body' warning. */
-# define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
-# else
-# if defined (__STDC__) || defined (__cplusplus)
-# include /* INFRINGES ON USER NAME SPACE */
-# define YYSIZE_T size_t
+]])dnl
+[# ifdef YYSTACK_ALLOC
+ /* 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. */
+# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
# endif
+# else
# define YYSTACK_ALLOC YYMALLOC
# define YYSTACK_FREE YYFREE
+# ifndef YYSTACK_ALLOC_MAXIMUM
+# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
+# endif
+# if (defined __cplusplus && ! defined _STDLIB_H \
+ && ! ((defined YYMALLOC || defined malloc) \
+ && (defined YYFREE || defined free)))
+# include /* INFRINGES ON USER NAME SPACE */
+# ifndef _STDLIB_H
+# define _STDLIB_H 1
+# endif
+# endif
+# ifndef YYMALLOC
+# define YYMALLOC malloc
+# 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
+# if ! defined free && ! defined _STDLIB_H && ]b4_c_modern[
+void free (void *); /* INFRINGES ON USER NAME SPACE */
+# 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_locations_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
{
- short yyss;
- YYSTYPE yyvs;
- ]b4_location_if([ YYLTYPE yyls;
-])dnl
-[};
+ yytype_int16 yyss_alloc;
+ YYSTYPE yyvs_alloc;]b4_locations_if([
+ YYLTYPE yyls_alloc;])[
+};
/* The size of the maximum gap between one aligned stack and the next. */
# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
/* The size of an array large to enough to hold all stacks, each with
N elements. */
-]b4_location_if(
+]b4_locations_if(
[# define YYSTACK_BYTES(N) \
- ((N) * (sizeof (short) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+ ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+ 2 * YYSTACK_GAP_MAXIMUM)],
[# define YYSTACK_BYTES(N) \
- ((N) * (sizeof (short) + 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
-# 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) \
do \
{ \
- register YYSIZE_T yyi; \
+ YYSIZE_T yyi; \
for (yyi = 0; yyi < (Count); yyi++) \
(To)[yyi] = (From)[yyi]; \
} \
- while (0)
+ while (YYID (0))
# endif
# endif
@@ -303,44 +518,38 @@ union yyalloc
elements in the stack, and YYPTR gives the new location of the
stack. Advance YYPTR to a properly aligned location for the next
stack. */
-# define YYSTACK_RELOCATE(Stack) \
+# define YYSTACK_RELOCATE(Stack_alloc, Stack) \
do \
{ \
YYSIZE_T yynewbytes; \
- YYCOPY (&yyptr->Stack, Stack, yysize); \
- Stack = &yyptr->Stack; \
+ YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
+ Stack = &yyptr->Stack_alloc; \
yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
yyptr += yynewbytes / sizeof (*yyptr); \
} \
- while (0)
-
-#endif
+ while (YYID (0))
-#if defined (__STDC__) || defined (__cplusplus)
- typedef signed char yysigned_char;
-#else
- typedef short 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[
-/* YYNTOKENS -- Number of terminals. */
+/* YYNTOKENS -- Number of terminals. */
#define YYNTOKENS ]b4_tokens_number[
-/* YYNNTS -- Number of nonterminals. */
+/* YYNNTS -- Number of nonterminals. */
#define YYNNTS ]b4_nterms_number[
-/* YYNRULES -- Number of rules. */
+/* YYNRULES -- Number of rules. */
#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 YYUNDEFTOK ]b4_undef_token_number[
#define YYMAXUTOK ]b4_user_token_number_max[
-#define YYTRANSLATE(YYX) \
+#define YYTRANSLATE(YYX) \
((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */
@@ -357,7 +566,7 @@ static const ]b4_int_type_for([b4_prhs])[ yyprhs[] =
]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[
@@ -370,9 +579,9 @@ static const ]b4_int_type_for([b4_rline])[ yyrline[] =
};
#endif
-#if YYDEBUG || YYERROR_VERBOSE
-/* YYTNME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
- First, the terminals, then, starting at YYNTOKENS, nonterminals. */
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+ First, the terminals, then, starting at YYNTOKENS, nonterminals. */
static const char *const yytname[] =
{
]b4_tname[
@@ -400,15 +609,15 @@ static const ]b4_int_type_for([b4_r2])[ yyr2[] =
]b4_r2[
};
-/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
- STATE-NUM when YYTABLE doesn't specify something else to do. Zero
+/* YYDEFACT[STATE-NAME] -- Default reduction number in state STATE-NUM.
+ Performed when YYTABLE doesn't specify something else to do. Zero
means the default is an error. */
static const ]b4_int_type_for([b4_defact])[ yydefact[] =
{
]b4_defact[
};
-/* YYDEFGOTO[NTERM-NUM]. */
+/* YYDEFGOTO[NTERM-NUM]. */
static const ]b4_int_type_for([b4_defgoto])[ yydefgoto[] =
{
]b4_defgoto[
@@ -430,14 +639,19 @@ static const ]b4_int_type_for([b4_pgoto])[ yypgoto[] =
/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If
positive, shift that token. If negative, reduce the rule which
- number is the opposite. If zero, do what YYDEFACT says.
- If YYTABLE_NINF, syntax error. */
+ number is the opposite. If YYTABLE_NINF, syntax error. */
#define YYTABLE_NINF ]b4_table_ninf[
static const ]b4_int_type_for([b4_table])[ yytable[] =
{
]b4_table[
};
+#define yypact_value_is_default(yystate) \
+ ]b4_table_value_equals([[pact]], [[yystate]], [b4_pact_ninf])[
+
+#define yytable_value_is_error(yytable_value) \
+ ]b4_table_value_equals([[table]], [[yytable_value]], [b4_table_ninf])[
+
static const ]b4_int_type_for([b4_check])[ yycheck[] =
{
]b4_check[
@@ -450,22 +664,6 @@ static const ]b4_int_type_for([b4_stos])[ yystos[] =
]b4_stos[
};
-#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__)
-# define YYSIZE_T __SIZE_TYPE__
-#endif
-#if ! defined (YYSIZE_T) && defined (size_t)
-# define YYSIZE_T size_t
-#endif
-#if ! defined (YYSIZE_T)
-# if defined (__STDC__) || defined (__cplusplus)
-# include /* INFRINGES ON USER NAME SPACE */
-# define YYSIZE_T size_t
-# endif
-#endif
-#if ! defined (YYSIZE_T)
-# define YYSIZE_T unsigned int
-#endif
-
#define yyerrok (yyerrstatus = 0)
#define yyclearin (yychar = YYEMPTY)
#define YYEMPTY (-2)
@@ -478,9 +676,18 @@ static const ]b4_int_type_for([b4_stos])[ yystos[] =
/* Like YYERROR except do call yyerror. This remains here temporarily
to ease the transition to the new meaning of YYERROR, for GCC.
- Once GCC version 2 has supplanted version 1, this can go. */
+ Once GCC version 2 has supplanted version 1, this can go. However,
+ YYFAIL appears to be in use. Nevertheless, it is formally deprecated
+ in Bison 2.4.2's NEWS entry, where a plan to phase it out is
+ discussed. */
#define YYFAIL goto yyerrlab
+#if defined YYFAIL
+ /* This is here to suppress warnings from the GCC cpp's
+ -Wunused-macros. Normally we don't worry about that warning, but
+ some users do, and we want to make it easy for users to remove
+ YYFAIL uses, which will produce warnings from Bison 2.5. */
+#endif
#define YYRECOVERING() (!!yyerrstatus)
@@ -490,35 +697,74 @@ do \
{ \
yychar = (Token); \
yylval = (Value); \
- yytoken = YYTRANSLATE (yychar); \
- YYPOPSTACK; \
+ YYPOPSTACK (1); \
goto yybackup; \
} \
else \
- { \
- yyerror (]b4_yyerror_args["syntax error: cannot back up");\
+ { \
+ yyerror (]b4_yyerror_args[YY_("syntax error: cannot back up")); \
YYERROR; \
} \
-while (0)
+while (YYID (0))
+
#define YYTERROR 1
#define YYERRCODE 256
-/* YYLLOC_DEFAULT -- Compute the default location (before the actions
- are run). */
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+ If N is 0, then set CURRENT to the empty location which ends
+ the previous symbol: RHS[0] (always defined). */
+
+#define YYRHSLOC(Rhs, K) ((Rhs)[K])
#ifndef YYLLOC_DEFAULT
-# define YYLLOC_DEFAULT(Current, Rhs, N) \
- ((Current).first_line = (Rhs)[1].first_line, \
- (Current).first_column = (Rhs)[1].first_column, \
- (Current).last_line = (Rhs)[N].last_line, \
- (Current).last_column = (Rhs)[N].last_column)
-#endif
+# define YYLLOC_DEFAULT(Current, Rhs, N) \
+ do \
+ if (YYID (N)) \
+ { \
+ (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
+ (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
+ (Current).last_line = YYRHSLOC (Rhs, N).last_line; \
+ (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
+ } \
+ else \
+ { \
+ (Current).first_line = (Current).last_line = \
+ YYRHSLOC (Rhs, 0).last_line; \
+ (Current).first_column = (Current).last_column = \
+ YYRHSLOC (Rhs, 0).last_column; \
+ } \
+ while (YYID (0))
+#endif]b4_locations_if([[
+
+
+/* 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. */
+
+#ifndef YY_LOCATION_PRINT
+# if defined YYLTYPE_IS_TRIVIAL && 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)
+# else
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+# endif
+#endif]], [[
+
+
+/* This macro is provided for backward compatibility. */
+
+#ifndef YY_LOCATION_PRINT
+# define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+#endif]])[
+
/* YYLEX -- calling `yylex' with the right arguments. */
#ifdef YYLEX_PARAM
-# define YYLEX yylex (]b4_pure_if([&yylval[]b4_location_if([, &yylloc]), ])[YYLEX_PARAM)
+# define YYLEX yylex (]b4_pure_if([&yylval[]b4_locations_if([, &yylloc]), ])[YYLEX_PARAM)
#else
# define YYLEX ]b4_c_function_call([yylex], [int], b4_lex_param)[
#endif
@@ -535,24 +781,20 @@ while (0)
do { \
if (yydebug) \
YYFPRINTF Args; \
-} while (0)
+} while (YYID (0))
-# define YYDSYMPRINT(Args) \
-do { \
- if (yydebug) \
- yysymprint Args; \
-} while (0)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \
+do { \
+ if (yydebug) \
+ { \
+ YYFPRINTF (stderr, "%s ", Title); \
+ yy_symbol_print (stderr, \
+ Type, Value]b4_locations_if([, Location])[]b4_user_args[); \
+ YYFPRINTF (stderr, "\n"); \
+ } \
+} while (YYID (0))
-# define YYDSYMPRINTF(Title, Token, Value, Location) \
-do { \
- if (yydebug) \
- { \
- YYFPRINTF (stderr, "%s ", Title); \
- yysymprint (stderr, \
- Token, Value]b4_location_if([, Location])[); \
- YYFPRINTF (stderr, "\n"); \
- } \
-} while (0)
+]b4_yy_symbol_print_generate([b4_c_function_def])[
/*------------------------------------------------------------------.
| yy_stack_print -- Print the state stack from its BOTTOM up to its |
@@ -560,12 +802,15 @@ do { \
`------------------------------------------------------------------*/
]b4_c_function_def([yy_stack_print], [static void],
- [[short *bottom], [bottom]],
- [[short *top], [top]])[
+ [[yytype_int16 *yybottom], [yybottom]],
+ [[yytype_int16 *yytop], [yytop]])[
{
YYFPRINTF (stderr, "Stack now");
- for (/* Nothing. */; bottom <= top; ++bottom)
- YYFPRINTF (stderr, " %d", *bottom);
+ for (; yybottom <= yytop; yybottom++)
+ {
+ int yybot = *yybottom;
+ YYFPRINTF (stderr, " %d", yybot);
+ }
YYFPRINTF (stderr, "\n");
}
@@ -573,7 +818,7 @@ do { \
do { \
if (yydebug) \
yy_stack_print ((Bottom), (Top)); \
-} while (0)
+} while (YYID (0))
/*------------------------------------------------.
@@ -581,31 +826,40 @@ do { \
`------------------------------------------------*/
]b4_c_function_def([yy_reduce_print], [static void],
- [[int yyrule], [yyrule]])[
+ [[YYSTYPE *yyvsp], [yyvsp]],
+ b4_locations_if([[[YYLTYPE *yylsp], [yylsp]],
+ ])[[int yyrule], [yyrule]]m4_ifset([b4_parse_param], [,
+ b4_parse_param]))[
{
+ int yynrhs = yyr2[yyrule];
int yyi;
- unsigned int yylno = yyrline[yyrule];
- YYFPRINTF (stderr, "Reducing stack by rule %d (line %u), ",
- 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]]);
+ unsigned long int yylno = yyrline[yyrule];
+ YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
+ yyrule - 1, yylno);
+ /* The symbols being reduced. */
+ for (yyi = 0; yyi < yynrhs; yyi++)
+ {
+ YYFPRINTF (stderr, " $%d = ", yyi + 1);
+ yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+ &]b4_rhs_value(yynrhs, yyi + 1)[
+ ]b4_locations_if([, &]b4_rhs_location(yynrhs, yyi + 1))[]dnl
+ b4_user_args[);
+ YYFPRINTF (stderr, "\n");
+ }
}
# define YY_REDUCE_PRINT(Rule) \
do { \
if (yydebug) \
- yy_reduce_print (Rule); \
-} while (0)
+ yy_reduce_print (yyvsp, ]b4_locations_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;
#else /* !YYDEBUG */
# define YYDPRINTF(Args)
-# define YYDSYMPRINT(Args)
-# define YYDSYMPRINTF(Title, Token, Value, Location)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
# define YY_STACK_PRINT(Bottom, Top)
# define YY_REDUCE_PRINT(Rule)
#endif /* !YYDEBUG */
@@ -620,13 +874,9 @@ int yydebug;
if the built-in stack extension method is used).
Do not make this value too large; the results are undefined if
- SIZE_MAX < YYSTACK_BYTES (YYMAXDEPTH)
+ YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
evaluated with infinite-precision integer arithmetic. */
-#if defined (YYMAXDEPTH) && YYMAXDEPTH == 0
-# undef YYMAXDEPTH
-#endif
-
#ifndef YYMAXDEPTH
# define YYMAXDEPTH ]b4_stack_depth_max[
#endif
@@ -636,45 +886,32 @@ int yydebug;
#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. */
-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]])[
{
- register const char *yys = yystr;
-
- while (*yys++ != '\0')
+ YYSIZE_T yylen;
+ for (yylen = 0; yystr[yylen]; yylen++)
continue;
-
- return yys - yystr - 1;
+ return yylen;
}
# 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. */
-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]])[
{
- register char *yyd = yydest;
- register const char *yys = yysrc;
+ char *yyd = yydest;
+ const char *yys = yysrc;
while ((*yyd++ = *yys++) != '\0')
continue;
@@ -684,50 +921,288 @@ yystpcpy (yydest, yysrc)
# endif
# endif
-#endif /* !YYERROR_VERBOSE */
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+ quotes and backslashes, so that it's suitable for yyerror. The
+ heuristic is that double-quoting is unnecessary unless the string
+ contains an apostrophe, a comma, or backslash (other than
+ backslash-backslash). YYSTR is taken from yytname. If YYRES is
+ null, do not copy; instead, return the length of what the result
+ would have been. */
+static YYSIZE_T
+yytnamerr (char *yyres, const char *yystr)
+{
+ if (*yystr == '"')
+ {
+ YYSIZE_T yyn = 0;
+ char const *yyp = yystr;
+
+ for (;;)
+ switch (*++yyp)
+ {
+ case '\'':
+ case ',':
+ goto do_not_strip_quotes;
+
+ case '\\':
+ if (*++yyp != '\\')
+ goto do_not_strip_quotes;
+ /* Fall through. */
+ default:
+ if (yyres)
+ yyres[yyn] = *yyp;
+ yyn++;
+ break;
+
+ case '"':
+ if (yyres)
+ yyres[yyn] = '\0';
+ return yyn;
+ }
+ do_not_strip_quotes: ;
+ }
+
+ if (! yyres)
+ return yystrlen (yystr);
-
+ return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
-#if YYDEBUG
-]b4_yysymprint_generate([b4_c_function_def])[
-#endif /* ! YYDEBUG */
-]b4_yydestruct_generate([b4_c_function_def])
+/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message
+ about the unexpected token YYTOKEN while in state YYSTATE.
+
+ Return 0 if *YYMSG was successfully written. Return 1 if an ordinary
+ "syntax error" message will suffice instead. Return 2 if *YYMSG is
+ not large enough to hold the message. In the last case, also set
+ *YYMSG_ALLOC to either (a) the required number of bytes or (b) zero
+ if the required number of bytes is too large to store. */
+static int
+yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg,
+ int yystate, int yytoken)
+{
+ int yyn = yypact[yystate];
+
+ if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
+ return 1;
+ else
+ {
+ YYSIZE_T yysize0 = yytnamerr (0, yytname[yytoken]);
+ YYSIZE_T yysize = yysize0;
+ YYSIZE_T yysize1;
+ enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+ /* Internationalized format string. */
+ const char *yyformat = 0;
+ /* Arguments of yyformat. */
+ char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+
+ /* Start YYX at -YYN if negative to avoid negative indexes in
+ YYCHECK. In other words, skip the first -YYN actions for this
+ state because they are default actions. */
+ int yyxbegin = yyn < 0 ? -yyn : 0;
+
+ /* Stay within bounds of both yycheck and yytname. */
+ int yychecklim = YYLAST - yyn + 1;
+ int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+ /* Number of reported tokens (one for the "unexpected", one per
+ "expected"). */
+ int yycount = 0;
+ int yyx;
+
+ yyarg[yycount++] = yytname[yytoken];
+
+ for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+ if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR
+ && !yytable_value_is_error (yytable[yyx + yyn]))
+ {
+ if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+ {
+ yycount = 1;
+ yysize = yysize0;
+ break;
+ }
+ yyarg[yycount++] = yytname[yyx];
+ yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+ if (! (yysize <= yysize1
+ && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+ {
+ /* Overflow. */
+ *yymsg_alloc = 0;
+ return 2;
+ }
+ yysize = yysize1;
+ }
+
+ switch (yycount)
+ {
+#define YYCASE_(N, S) \
+ case N: \
+ yyformat = S; \
+ break
+ YYCASE_(1, YY_("syntax error, unexpected %s"));
+ YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s"));
+ YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s"));
+ YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s"));
+ YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s"));
+#undef YYCASE_
+ }
+
+ yysize1 = yysize + yystrlen (yyformat);
+ if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM))
+ {
+ /* Overflow. */
+ *yymsg_alloc = 0;
+ return 2;
+ }
+ yysize = yysize1;
+
+ if (*yymsg_alloc < yysize)
+ {
+ *yymsg_alloc = 2 * yysize;
+ if (! (yysize <= *yymsg_alloc
+ && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM))
+ *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM;
+ return 2;
+ }
+
+ /* 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 = *yymsg;
+ int yyi = 0;
+ while ((*yyp = *yyformat) != '\0')
+ if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount)
+ {
+ yyp += yytnamerr (yyp, yyarg[yyi++]);
+ yyformat += 2;
+ }
+ else
+ {
+ yyp++;
+ yyformat++;
+ }
+ }
+ return 0;
+ }
+}
+#endif /* YYERROR_VERBOSE */
-/* Prevent warnings from -Wmissing-prototypes. */
+]b4_yydestruct_generate([b4_c_function_def])b4_push_if([], [[
+
+/* 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 */
-b4_c_function_decl([yyparse], [int], b4_parse_param)
-#endif /* ! YYPARSE_PARAM */
+]b4_c_function_decl([yyparse], [int], b4_parse_param)[
+#endif /* ! YYPARSE_PARAM */]])b4_pure_if([], [
+b4_declare_scanner_communication_variables])[]b4_push_if([[
-m4_divert_push([KILL])# ======================== M4 code.
-# b4_declare_parser_variables
-# ---------------------------
-# Declare the variables that are global, or local to YYPARSE if
-# pure-parser.
-m4_define([b4_declare_parser_variables],
-[/* The lookahead symbol. */
-int yychar;
-/* The semantic value of the lookahead symbol. */
-YYSTYPE yylval;
+struct yypstate
+ {]b4_declare_parser_state_variables[
+ /* Used to determine if this is the first time this instance has
+ been used. */
+ int yynew;
+ };]b4_pure_if([], [[
-/* Number of syntax errors so far. */
-int yynerrs;b4_location_if([
-/* Location data for the lookahead symbol. */
-YYLTYPE yylloc;])
-])
-m4_divert_pop([KILL])dnl# ====================== End of M4 code.
+static char yypstate_allocated = 0;]])b4_pull_if([
-b4_pure_if([],
- [b4_declare_parser_variables])
+b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
+{
+ return yypull_parse (0]m4_ifset([b4_parse_param],
+ [[, ]b4_c_args(b4_parse_param)])[);
+}
+
+]b4_c_function_def([[yypull_parse]], [[int]],
+ [[[yypstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
+ b4_parse_param]))[
+{
+ int yystatus;
+ yypstate *yyps_local;]b4_pure_if([[
+ int yychar;
+ YYSTYPE yylval;]b4_locations_if([[
+ YYLTYPE yylloc;]])])[
+ if (yyps == 0)
+ {
+ yyps_local = yypstate_new ();
+ if (!yyps_local)
+ {]b4_pure_if([[
+ yyerror (]b4_yyerror_args[YY_("memory exhausted"));]], [[
+ if (!yypstate_allocated)
+ yyerror (]b4_yyerror_args[YY_("memory exhausted"));]])[
+ return 2;
+ }
+ }
+ else
+ yyps_local = yyps;
+ do {
+ yychar = YYLEX;
+ yystatus =
+ yypush_parse (yyps_local]b4_pure_if([[, yychar, &yylval]b4_locations_if([[, &yylloc]])])m4_ifset([b4_parse_param], [, b4_c_args(b4_parse_param)])[);
+ } while (yystatus == YYPUSH_MORE);
+ if (yyps == 0)
+ yypstate_delete (yyps_local);
+ return yystatus;
+}]])[
+
+/* Initialize the parser data structure. */
+]b4_c_function_def([[yypstate_new]], [[yypstate *]])[
+{
+ yypstate *yyps;]b4_pure_if([], [[
+ if (yypstate_allocated)
+ return 0;]])[
+ yyps = (yypstate *) malloc (sizeof *yyps);
+ if (!yyps)
+ return 0;
+ yyps->yynew = 1;]b4_pure_if([], [[
+ yypstate_allocated = 1;]])[
+ return yyps;
+}
+
+]b4_c_function_def([[yypstate_delete]], [[void]],
+ [[[yypstate *yyps]], [[yyps]]])[
+{
+#ifndef yyoverflow
+ /* If the stack was reallocated but the parse did not complete, then the
+ stack still needs to be freed. */
+ if (!yyps->yynew && yyps->yyss != yyps->yyssa)
+ YYSTACK_FREE (yyps->yyss);
+#endif
+ free (yyps);]b4_pure_if([], [[
+ yypstate_allocated = 0;]])[
+}
+]b4_pure_if([[
+#define ]b4_prefix[nerrs yyps->]b4_prefix[nerrs]])[
+#define yystate yyps->yystate
+#define yyerrstatus yyps->yyerrstatus
+#define yyssa yyps->yyssa
+#define yyss yyps->yyss
+#define yyssp yyps->yyssp
+#define yyvsa yyps->yyvsa
+#define yyvs yyps->yyvs
+#define yyvsp yyps->yyvsp]b4_locations_if([[
+#define yylsa yyps->yylsa
+#define yyls yyps->yyls
+#define yylsp yyps->yylsp
+#define yyerror_range yyps->yyerror_range]])[
+#define yystacksize yyps->yystacksize
+
+
+/*---------------.
+| yypush_parse. |
+`---------------*/
+
+]b4_c_function_def([[yypush_parse]], [[int]],
+ [[[yypstate *yyps]], [[yyps]]]b4_pure_if([,
+ [[[int yypushed_char]], [[yypushed_char]]],
+ [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
+ [[[YYLTYPE const *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
+ b4_parse_param]))], [[
/*----------.
@@ -735,78 +1210,84 @@ b4_pure_if([],
`----------*/
#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
-{[
- ]b4_pure_if([b4_declare_parser_variables])[
- register int yystate;
- register int yyn;
+]b4_c_function_def([yyparse], [int], b4_parse_param)[
+#endif]])[
+{]b4_pure_if([b4_declare_scanner_communication_variables
+])b4_push_if([b4_pure_if([], [[
+ int yypushed_char = yychar;
+ YYSTYPE yypushed_val = yylval;]b4_locations_if([[
+ YYLTYPE yypushed_loc = yylloc;]])
+])],
+ [b4_declare_parser_state_variables
+])[
+ int yyn;
int yyresult;
- /* Number of tokens to shift before error messages enabled. */
- int yyerrstatus;
/* Lookahead token as an internal (translated) token number. */
- int yytoken = 0;
-
- /* Three stacks and their tools:
- `yyss': related to states,
- `yyvs': related to semantic values,
- `yyls': related to locations.
-
- Refer to the stacks thru separate pointers, to allow yyoverflow
- to reallocate them elsewhere. */
-
- /* The state stack. */
- short yyssa[YYINITDEPTH];
- short *yyss = yyssa;
- register short *yyssp;
-
- /* The semantic value stack. */
- YYSTYPE yyvsa[YYINITDEPTH];
- YYSTYPE *yyvs = yyvsa;
- register YYSTYPE *yyvsp;
+ int yytoken;
+ /* The variables used to return semantic value and location from the
+ action routines. */
+ YYSTYPE yyval;]b4_locations_if([[
+ YYLTYPE yyloc;]])[
-]b4_location_if(
-[[ /* The location stack. */
- YYLTYPE yylsa[YYINITDEPTH];
- YYLTYPE *yyls = yylsa;
- YYLTYPE *yylsp;
- YYLTYPE *yylerrsp;]])[
+#if YYERROR_VERBOSE
+ /* Buffer for error messages, and its allocated size. */
+ char yymsgbuf[128];
+ char *yymsg = yymsgbuf;
+ YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
+#endif
-#define YYPOPSTACK (yyvsp--, yyssp--]b4_location_if([, yylsp--])[)
+#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)]b4_locations_if([, yylsp -= (N)])[)
- YYSIZE_T yystacksize = YYINITDEPTH;
+ /* The number of symbols on the RHS of the reduced rule.
+ Keep to zero when no symbol should be popped. */
+ int yylen = 0;]b4_push_if([[
- /* The variables used to return semantic value and location from the
- action routines. */
- YYSTYPE yyval;
-]b4_location_if([ YYLTYPE yyloc;])[
+ if (!yyps->yynew)
+ {
+ yyn = yypact[yystate];
+ goto yyread_pushed_token;
+ }]])[
- /* When reducing, the number of symbols on the RHS of the reduced
- rule. */
- int yylen;
+ yytoken = 0;
+ yyss = yyssa;
+ yyvs = yyvsa;]b4_locations_if([[
+ yyls = yylsa;]])[
+ yystacksize = YYINITDEPTH;
YYDPRINTF ((stderr, "Starting parse\n"));
yystate = 0;
yyerrstatus = 0;
yynerrs = 0;
- yychar = YYEMPTY; /* Cause a token to be read. */
+ yychar = YYEMPTY; /* Cause a token to be read. */
/* Initialize stack pointers.
Waste one element of value and location stack
so that they stay on the same level as the state stack.
The wasted elements are never initialized. */
-
yyssp = yyss;
- yyvsp = yyvs;
-]b4_location_if([ yylsp = yyls;])[
+ yyvsp = yyvs;]b4_locations_if([[
+ yylsp = yyls;
+
+#if defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL
+ /* Initialize the default location before parsing starts. */
+ 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],[
+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. */
+b4_user_initial_action
+m4_popdef([b4_dollar_dollar])dnl
+m4_popdef([b4_at_dollar])])dnl
+m4_ifdef([b4_dollar_dollar_used],[[ yyvsp[0] = yylval;
+]])dnl
+m4_ifdef([b4_at_dollar_used], [[ yylsp[0] = yylloc;
+]])[
goto yysetstate;
/*------------------------------------------------------------.
@@ -814,8 +1295,7 @@ b4_c_function_def([yyparse], [int], b4_parse_param)
`------------------------------------------------------------*/
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:
@@ -828,46 +1308,47 @@ b4_c_function_def([yyparse], [int], b4_parse_param)
#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;
- short *yyss1 = yyss;
-]b4_location_if([ YYLTYPE *yyls1 = yyls;])[
+ yytype_int16 *yyss1 = yyss;]b4_locations_if([
+ YYLTYPE *yyls1 = yyls;])[
/* Each stack pointer address is followed by the size of the
data in use in that stack, in bytes. This used to be a
conditional around just the two extra args, but that might
be undefined if yyoverflow is a macro. */
- yyoverflow ("parser stack overflow",
+ yyoverflow (YY_("memory exhausted"),
&yyss1, yysize * sizeof (*yyssp),
- &yyvs1, yysize * sizeof (*yyvsp),
-]b4_location_if([ &yyls1, yysize * sizeof (*yylsp),])[
+ &yyvs1, yysize * sizeof (*yyvsp),]b4_locations_if([
+ &yyls1, yysize * sizeof (*yylsp),])[
&yystacksize);
-]b4_location_if([ yyls = yyls1;])[
+]b4_locations_if([
+ yyls = yyls1;])[
yyss = yyss1;
yyvs = yyvs1;
}
#else /* no yyoverflow */
# ifndef YYSTACK_RELOCATE
- goto yyoverflowlab;
+ goto yyexhaustedlab;
# else
/* Extend the stack our own way. */
if (YYMAXDEPTH <= yystacksize)
- goto yyoverflowlab;
+ goto yyexhaustedlab;
yystacksize *= 2;
if (YYMAXDEPTH < yystacksize)
yystacksize = YYMAXDEPTH;
{
- short *yyss1 = yyss;
+ yytype_int16 *yyss1 = yyss;
union yyalloc *yyptr =
(union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
if (! yyptr)
- goto yyoverflowlab;
- YYSTACK_RELOCATE (yyss);
- YYSTACK_RELOCATE (yyvs);
-]b4_location_if([ YYSTACK_RELOCATE (yyls);])[
+ goto yyexhaustedlab;
+ YYSTACK_RELOCATE (yyss_alloc, yyss);
+ YYSTACK_RELOCATE (yyvs_alloc, yyvs);]b4_locations_if([
+ YYSTACK_RELOCATE (yyls_alloc, yyls);])[
# undef YYSTACK_RELOCATE
if (yyss1 != yyssa)
YYSTACK_FREE (yyss1);
@@ -876,8 +1357,8 @@ b4_c_function_def([yyparse], [int], b4_parse_param)
#endif /* no yyoverflow */
yyssp = yyss + yysize - 1;
- yyvsp = yyvs + yysize - 1;
-]b4_location_if([ yylsp = yyls + yysize - 1;])[
+ yyvsp = yyvs + yysize - 1;]b4_locations_if([
+ yylsp = yyls + yysize - 1;])[
YYDPRINTF ((stderr, "Stack size increased to %lu\n",
(unsigned long int) yystacksize));
@@ -888,6 +1369,9 @@ b4_c_function_def([yyparse], [int], b4_parse_param)
YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+ if (yystate == YYFINAL)
+ YYACCEPT;
+
goto yybackup;
/*-----------.
@@ -895,23 +1379,40 @@ b4_c_function_def([yyparse], [int], b4_parse_param)
`-----------*/
yybackup:
-/* Do appropriate processing given the current state. */
-/* Read a lookahead token if we need one and don't already have one. */
-/* yyresume: */
+ /* Do appropriate processing given the current state. Read a
+ lookahead token if we need one and don't already have one. */
/* First try to decide what to do without reference to lookahead token. */
-
yyn = yypact[yystate];
- if (yyn == YYPACT_NINF)
+ if (yypact_value_is_default (yyn))
goto yydefault;
/* Not known => get a lookahead token if don't already have one. */
/* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */
if (yychar == YYEMPTY)
- {
- YYDPRINTF ((stderr, "Reading a token: "));
- yychar = YYLEX;
+ {]b4_push_if([[
+ if (!yyps->yynew)
+ {]b4_use_push_for_pull_if([], [[
+ YYDPRINTF ((stderr, "Return for a new token:\n"));]])[
+ yyresult = YYPUSH_MORE;
+ goto yypushreturn;
+ }
+ yyps->yynew = 0;]b4_pure_if([], [[
+ /* Restoring the pushed token is only necessary for the first
+ yypush_parse invocation since subsequent invocations don't overwrite
+ it before jumping to yyread_pushed_token. */
+ yychar = yypushed_char;
+ yylval = yypushed_val;]b4_locations_if([[
+ yylloc = yypushed_loc;]])])[
+yyread_pushed_token:]])[
+ YYDPRINTF ((stderr, "Reading a token: "));]b4_push_if([b4_pure_if([[
+ yychar = yypushed_char;
+ if (yypushed_val)
+ yylval = *yypushed_val;]b4_locations_if([[
+ if (yypushed_loc)
+ yylloc = *yypushed_loc;]])])], [[
+ yychar = YYLEX;]])[
}
if (yychar <= YYEOF)
@@ -922,7 +1423,7 @@ yybackup:
else
{
yytoken = YYTRANSLATE (yychar);
- YYDSYMPRINTF ("Next token is", yytoken, &yylval, &yylloc);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
}
/* If the proper action on seeing token YYTOKEN is to reduce or to
@@ -933,31 +1434,26 @@ yybackup:
yyn = yytable[yyn];
if (yyn <= 0)
{
- if (yyn == 0 || yyn == YYTABLE_NINF)
+ if (yytable_value_is_error (yyn))
goto yyerrlab;
yyn = -yyn;
goto yyreduce;
}
- if (yyn == YYFINAL)
- YYACCEPT;
-
- /* Shift the lookahead token. */
- YYDPRINTF ((stderr, "Shifting token %s, ", yytname[yytoken]));
-
- /* Discard the token being shifted unless it is eof. */
- if (yychar != YYEOF)
- yychar = YYEMPTY;
-
- *++yyvsp = yylval;
-]b4_location_if([ *++yylsp = yylloc;])[
-
/* Count tokens shifted since error; after three, turn off error
status. */
if (yyerrstatus)
yyerrstatus--;
+ /* Shift the lookahead token. */
+ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+ /* Discard the shifted token. */
+ yychar = YYEMPTY;
+
yystate = yyn;
+ *++yyvsp = yylval;
+]b4_locations_if([ *++yylsp = yylloc;])[
goto yynewstate;
@@ -988,26 +1484,34 @@ yyreduce:
GCC warning that YYVAL may be used uninitialized. */
yyval = yyvsp[1-yylen];
-]b4_location_if(
-[ /* Default location. */
- YYLLOC_DEFAULT (yyloc, yylsp - yylen, yylen);])[
+]b4_locations_if(
+[[ /* Default location. */
+ YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);]])[
YY_REDUCE_PRINT (yyn);
switch (yyn)
- ]{
- b4_actions
+ {
+ ]b4_user_actions[
+ default: break;
}
-
-/* Line __line__ of yacc.c. */
-b4_syncline([@oline@], [@ofile@])
-
-[ yyvsp -= yylen;
- yyssp -= yylen;
-]b4_location_if([ yylsp -= yylen;])[
-
+ /* User semantic actions sometimes alter yychar, and that requires
+ that yytoken be updated with the new translation. We take the
+ approach of translating immediately before every use of yytoken.
+ One alternative is translating here after every semantic action,
+ but that translation would be missed if the semantic action invokes
+ YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or
+ if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an
+ incorrect destructor might then be invoked immediately. In the
+ case of YYERROR or YYBACKUP, subsequent parser actions might lead
+ to an incorrect destructor call or verbose syntax error message
+ before the lookahead is translated. */
+ YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
+
+ YYPOPSTACK (yylen);
+ yylen = 0;
YY_STACK_PRINT (yyss, yyssp);
- *++yyvsp = yyval;
-]b4_location_if([ *++yylsp = yyloc;])[
+ *++yyvsp = yyval;]b4_locations_if([
+ *++yylsp = yyloc;])[
/* Now `shift' the result of the reduction. Determine what state
that goes to, based on the state we popped back to and the rule
@@ -1028,73 +1532,43 @@ b4_syncline([@oline@], [@ofile@])
| yyerrlab -- here on detecting error |
`------------------------------------*/
yyerrlab:
+ /* Make sure we have latest lookahead translation. See comments at
+ user semantic actions for why this is necessary. */
+ yytoken = YYTRANSLATE (yychar);
+
/* If not already recovering from an error, report this error. */
if (!yyerrstatus)
{
++yynerrs;
-#if YYERROR_VERBOSE
- yyn = yypact[yystate];
-
- if (YYPACT_NINF < yyn && yyn < YYLAST)
- {
- YYSIZE_T yysize = 0;
- int yytype = YYTRANSLATE (yychar);
- const char* yyprefix;
- char *yymsg;
- int yyx;
-
- /* Start YYX at -YYN if negative to avoid negative indexes in
- YYCHECK. */
- int yyxbegin = yyn < 0 ? -yyn : 0;
-
- /* Stay within bounds of both yycheck and yytname. */
- int yychecklim = YYLAST - yyn;
- int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
- int yycount = 0;
-
- yyprefix = ", expecting ";
- for (yyx = yyxbegin; yyx < yyxend; ++yyx)
- if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
- {
- yysize += yystrlen (yyprefix) + yystrlen (yytname [yyx]);
- yycount += 1;
- if (yycount == 5)
- {
- yysize = 0;
- break;
- }
- }
- yysize += (sizeof ("syntax error, unexpected ")
- + yystrlen (yytname[yytype]));
- yymsg = (char *) YYSTACK_ALLOC (yysize);
- if (yymsg != 0)
- {
- char *yyp = yystpcpy (yymsg, "syntax error, unexpected ");
- yyp = yystpcpy (yyp, yytname[yytype]);
-
- if (yycount < 5)
- {
- yyprefix = ", expecting ";
- for (yyx = yyxbegin; yyx < yyxend; ++yyx)
- if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
- {
- yyp = yystpcpy (yyp, yyprefix);
- yyp = yystpcpy (yyp, yytname[yyx]);
- yyprefix = " or ";
- }
- }
- yyerror (]b4_yyerror_args[yymsg);
- YYSTACK_FREE (yymsg);
- }
- else
- yyerror (]b4_yyerror_args["syntax error; also virtual memory exhausted");
- }
- else
-#endif /* YYERROR_VERBOSE */
- yyerror (]b4_yyerror_args["syntax error");
+#if ! YYERROR_VERBOSE
+ yyerror (]b4_yyerror_args[YY_("syntax error"));
+#else
+ while (1)
+ {
+ int yysyntax_error_status =
+ yysyntax_error (&yymsg_alloc, &yymsg, yystate, yytoken);
+ if (yysyntax_error_status == 2 && 0 < yymsg_alloc)
+ {
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+ yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
+ if (yymsg)
+ continue;
+ yymsg = yymsgbuf;
+ yymsg_alloc = sizeof yymsgbuf;
+ }
+ if (yysyntax_error_status == 0)
+ yyerror (]b4_yyerror_args[yymsg);
+ else
+ yyerror (]b4_yyerror_args[YY_("syntax error"));
+ if (yysyntax_error_status == 2)
+ goto yyexhaustedlab;
+ break;
+ }
+#endif
}
-]b4_location_if([ yylerrsp = yylsp;])[
+]b4_locations_if([[ yyerror_range[0] = yylloc;]])[
if (yyerrstatus == 3)
{
@@ -1102,25 +1576,16 @@ yyerrlab:
error, discard it. */
if (yychar <= YYEOF)
- {
- /* If at end of input, pop the error token,
- then the rest of the stack, then return failure. */
+ {
+ /* Return failure if at end of input. */
if (yychar == YYEOF)
- for (;;)
- {
- YYPOPSTACK;
- if (yyssp == yyss)
- YYABORT;
- YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp);
- yydestruct (yystos[*yyssp], yyvsp]b4_location_if([, yylsp])[);
- }
- }
+ YYABORT;
+ }
else
{
- YYDSYMPRINTF ("Error: discarding", yytoken, &yylval, &yylloc);
- yydestruct (yytoken, &yylval]b4_location_if([, &yylloc])[);
+ yydestruct ("Error: discarding",
+ yytoken, &yylval]b4_locations_if([, &yylloc])[]b4_user_args[);
yychar = YYEMPTY;
-]b4_location_if([ *++yylerrsp = yylloc;])[
}
}
@@ -1134,20 +1599,20 @@ yyerrlab:
`---------------------------------------------------*/
yyerrorlab:
-#ifdef __GNUC__
- /* Pacify GCC when the user code never invokes YYERROR and the label
- yyerrorlab therefore never appears in user code. */
- if (0)
+ /* Pacify compilers like GCC when the user code never invokes
+ YYERROR and the label yyerrorlab therefore never appears in user
+ code. */
+ if (/*CONSTCOND*/ 0)
goto yyerrorlab;
-#endif
- yyvsp -= yylen;
- yyssp -= yylen;
+]b4_locations_if([[ yyerror_range[0] = yylsp[1-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;
- ]b4_location_if([yylerrsp = yylsp;
- *++yylerrsp = yyloc;
- yylsp -= yylen;
- ])[goto yyerrlab1;
+ goto yyerrlab1;
/*-------------------------------------------------------------.
@@ -1159,7 +1624,7 @@ yyerrlab1:
for (;;)
{
yyn = yypact[yystate];
- if (yyn != YYPACT_NINF)
+ if (!yypact_value_is_default (yyn))
{
yyn += YYTERROR;
if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
@@ -1174,21 +1639,24 @@ yyerrlab1:
if (yyssp == yyss)
YYABORT;
- YYDSYMPRINTF ("Error: popping", yystos[*yyssp], yyvsp, yylsp);
- yydestruct (yystos[yystate], yyvsp]b4_location_if([, yylsp])[);
- YYPOPSTACK;
+]b4_locations_if([[ yyerror_range[0] = *yylsp;]])[
+ yydestruct ("Error: popping",
+ yystos[yystate], yyvsp]b4_locations_if([, yylsp])[]b4_user_args[);
+ YYPOPSTACK (1);
yystate = *yyssp;
YY_STACK_PRINT (yyss, yyssp);
}
- if (yyn == YYFINAL)
- YYACCEPT;
-
- YYDPRINTF ((stderr, "Shifting error token, "));
-
*++yyvsp = yylval;
-]b4_location_if([ YYLLOC_DEFAULT (yyloc, yylsp, yylerrsp - yylsp);
- *++yylsp = yyloc;])[
+]b4_locations_if([[
+ yyerror_range[1] = yylloc;
+ /* Using YYLLOC is tempting, but would change the location of
+ the lookahead. YYLOC is available though. */
+ YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
+ *++yylsp = yyloc;]])[
+
+ /* Shift the error token. */
+ YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
yystate = yyn;
goto yynewstate;
@@ -1208,55 +1676,79 @@ yyabortlab:
yyresult = 1;
goto yyreturn;
-#ifndef yyoverflow
-/*----------------------------------------------.
-| yyoverflowlab -- parser overflow comes here. |
-`----------------------------------------------*/
-yyoverflowlab:
- yyerror (]b4_yyerror_args["parser stack overflow");
+#if !defined(yyoverflow) || YYERROR_VERBOSE
+/*-------------------------------------------------.
+| yyexhaustedlab -- memory exhaustion comes here. |
+`-------------------------------------------------*/
+yyexhaustedlab:
+ yyerror (]b4_yyerror_args[YY_("memory exhausted"));
yyresult = 2;
/* Fall through. */
#endif
yyreturn:
+ if (yychar != YYEMPTY)
+ {
+ /* Make sure we have latest lookahead translation. See comments at
+ user semantic actions for why this is necessary. */
+ yytoken = YYTRANSLATE (yychar);
+ yydestruct ("Cleanup: discarding lookahead",
+ yytoken, &yylval]b4_locations_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",
+ yystos[*yyssp], yyvsp]b4_locations_if([, yylsp])[]b4_user_args[);
+ YYPOPSTACK (1);
+ }
#ifndef yyoverflow
if (yyss != yyssa)
YYSTACK_FREE (yyss);
+#endif]b4_push_if([[
+ yyps->yynew = 1;
+
+yypushreturn:]])[
+#if YYERROR_VERBOSE
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
#endif
- return yyresult;
-]}
-
-
-b4_epilogue
-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])
-
-/* 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. */
-
-b4_token_defines(b4_tokens)
-
-#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED)
-m4_ifdef([b4_stype],
-[b4_syncline([b4_stype_line], [b4_filename])
-typedef union m4_bregexp(b4_stype, [^{], [YYSTYPE ])b4_stype YYSTYPE;
-/* Line __line__ of yacc.c. */
-b4_syncline([@oline@], [@ofile@])],
-[typedef int YYSTYPE;])
+ /* Make sure YYID is used. */
+ return YYID (yyresult);
+}
+
+
+]b4_epilogue
+b4_defines_if(
+[@output(b4_spec_defines_file@)@
+b4_copyright([Skeleton interface for Bison's Yacc-like parsers in C],
+ [1984, 1989-1990, 2000-2010])
+
+b4_percent_code_get([[requires]])[]dnl
+
+b4_token_enums_defines(b4_tokens)
+
+[#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+]m4_ifdef([b4_stype],
+[[typedef union ]b4_union_name[
+{
+]b4_user_stype[
+} YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1]],
+[m4_if(b4_tag_seen_flag, 0,
+[[typedef int YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1]])])[
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
-# define YYSTYPE_IS_TRIVIAL 1
#endif
-b4_pure_if([],
-[extern YYSTYPE b4_prefix[]lval;])
+]b4_pure_if([], [[extern YYSTYPE ]b4_prefix[lval;]])
-b4_location_if(
-[#if ! defined (YYLTYPE) && ! defined (YYLTYPE_IS_DECLARED)
+b4_locations_if(
+[#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
typedef struct YYLTYPE
{
int first_line;
@@ -1269,7 +1761,30 @@ typedef struct YYLTYPE
# define YYLTYPE_IS_TRIVIAL 1
#endif
-m4_if(b4_pure, [0],
-[extern YYLTYPE b4_prefix[]lloc;])
-])
-])
+]b4_pure_if([], [[extern YYLTYPE ]b4_prefix[lloc;]])
+)dnl b4_locations_if
+b4_push_if([[
+#ifndef YYPUSH_DECLS
+# define YYPUSH_DECLS
+struct ]b4_prefix[pstate;
+typedef struct ]b4_prefix[pstate ]b4_prefix[pstate;
+enum { YYPUSH_MORE = 4 };
+]b4_pull_if([b4_c_function_decl([b4_prefix[parse]], [[int]], b4_parse_param)
+])b4_c_function_decl([b4_prefix[push_parse]], [[int]],
+ [[b4_prefix[pstate *yyps]], [[yyps]]]b4_pure_if([,
+ [[[int yypushed_char]], [[yypushed_char]]],
+ [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
+ [[[YYLTYPE const *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
+ b4_parse_param]))
+b4_pull_if([b4_c_function_decl([b4_prefix[pull_parse]], [[int]],
+ [[b4_prefix[pstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
+ b4_parse_param]))])
+b4_c_function_decl([b4_prefix[pstate_new]], [b4_prefix[pstate *]],
+ [[[void]], []])
+b4_c_function_decl([b4_prefix[pstate_delete]], [[void]],
+ [[b4_prefix[pstate *yyps]], [[yyps]]])[
+#endif
+]])
+b4_percent_code_get([[provides]])[]dnl
+])dnl b4_defines_if
+m4_divert_pop(0)