-m4_divert(-1) -*- C -*-
-m4_include([c.m4])
-
+ -*- C -*-
# Yacc compatible skeleton for Bison
-# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002
-# Free Software Foundation, Inc.
-# This program is free software; you can redistribute it and/or modify
+# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+# 2007, 2008 Free Software Foundation, Inc.
+
+m4_pushdef([b4_copyright_years],
+[1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008])
+
+# 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 <http://www.gnu.org/licenses/>.
+
+# 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. ##
m4_define_default([b4_stack_depth_max], [10000])
m4_define_default([b4_stack_depth_init], [200])
-# Location type.
-m4_define_default([b4_location_type], [yyltype])
-# Accumule in b4_lex_param all the yylex arguments.
-# Yes, this is quite ugly...
+## ------------------------ ##
+## 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_yacc_pure_if(IF-TRUE, IF-FALSE)
+# ----------------------------------
+# Expand IF-TRUE, if %pure-parser and %parse-param, IF-FALSE otherwise.
+m4_define([b4_yacc_pure_if],
+[b4_pure_if([m4_ifset([b4_parse_param],
+ [$1], [$2])],
+ [$2])])
+
+
+# b4_yyerror_args
+# ---------------
+# Arguments passed to yyerror: user args plus yylloc.
+m4_define([b4_yyerror_args],
+[b4_yacc_pure_if([b4_locations_if([&yylloc, ])])dnl
+m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])])
+
+
+# b4_lex_param
+# ------------
+# Accumulate in b4_lex_param all the yylex arguments.
+# b4_lex_param arrives quoted twice, but we want to keep only one level.
m4_define([b4_lex_param],
m4_dquote(b4_pure_if([[[[YYSTYPE *]], [[&yylval]]][]dnl
-b4_location_if([, [[YYLTYPE *], [&yylloc]]])])dnl
-m4_ifdef([b4_lex_param], [, ]b4_lex_param)))
+b4_locations_if([, [[YYLTYPE *], [&yylloc]]])m4_ifdef([b4_lex_param], [, ])])dnl
+m4_ifdef([b4_lex_param], b4_lex_param)))
+
+
+## ------------ ##
+## Data Types. ##
+## ------------ ##
+
+# b4_int_type(MIN, MAX)
+# ---------------------
+# Return the smallest int type able to handle numbers ranging from
+# MIN to MAX (included). Overwrite the version from c.m4, which
+# uses only C89 types, so that the user can override the shorter
+# types, and so that pre-C89 compilers are handled correctly.
+m4_define([b4_int_type],
+[m4_if(b4_ints_in($@, [0], [255]), [1], [yytype_uint8],
+ b4_ints_in($@, [-128], [127]), [1], [yytype_int8],
-# Yes, this is quite ugly...
-m4_define_default([b4_parse_param])
-m4_ifdef([b4_parse_param],
-[m4_define([b4_parse_param],
- b4_parse_param)])
+ b4_ints_in($@, [0], [65535]), [1], [yytype_uint16],
+ b4_ints_in($@, [-32768], [32767]), [1], [yytype_int16],
+
+ m4_eval([0 <= $1]), [1], [unsigned int],
+
+ [int])])
## ----------------- ##
# --------------------
# Expansion of $<TYPE>$.
m4_define([b4_lhs_value],
-[yyval[]m4_ifval([$1], [.$1])])
+[b4_symbol_value(yyval, [$1])])
# b4_rhs_value(RULE-LENGTH, NUM, [TYPE])
# 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])])
+ [b4_symbol_value([yyvsp@{b4_subtract([$2], [$1])@}], [$3])])
# -----------------
# Expansion of @$.
m4_define([b4_lhs_location],
-[yyloc])
+[(yyloc)])
# b4_rhs_location(RULE-LENGTH, NUM)
# Expansion of @NUM, where the current rule has RULE-LENGTH symbols
# on RHS.
m4_define([b4_rhs_location],
-[yylsp@<:@m4_eval([$2 - $1])@:>@])
-
-
-
-## ------------------- ##
-## Output file names. ##
-## ------------------- ##
-
-m4_define_default([b4_input_suffix], [.y])
-
-m4_define_default([b4_output_parser_suffix],
-[m4_translit(b4_input_suffix, [yY], [cC])])
-
-m4_define_default([b4_output_parser_name],
-[b4_output_prefix[]b4_output_infix[]b4_output_parser_suffix[]])
-
-
-m4_define_default([b4_output_header_suffix],
-[m4_translit(b4_input_suffix, [yY], [hH])])
-
-m4_define_default([b4_output_header_name],
-[b4_output_prefix[]b4_output_infix[]b4_output_header_suffix[]])
-
-m4_define_default([b4_header_guard],
- [m4_bpatsubst(m4_toupper([BISON_]b4_output_header_name),
- [[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]], [_])])
+ [(yylsp@{b4_subtract([$2], [$1])@})])
## Defining symbol actions, e.g., printers and destructors. ##
## --------------------------------------------------------- ##
-# b4_symbol_actions(FILENAME, LINENO,
-# SYMBOL-TAG, SYMBOL-NUM,
-# SYMBOL-ACTION, SYMBOL-TYPENAME)
-# -------------------------------------------------
-m4_define([b4_symbol_actions],
-[m4_pushdef([b4_dollar_dollar], [yyvalue.$6])dnl
-m4_pushdef([b4_at_dollar], [yylocation])dnl
- case $4: /* $3 */
-#line $2 "$1"
- $5;
-#line __oline__ "__ofile__"
- break;
-m4_popdef([b4_at_dollar])dnl
-m4_popdef([b4_dollar_dollar])dnl
-])
-
-
+# We do want M4 expansion after # for CPP macros.
+m4_changecom()
+m4_divert_push(0)dnl
+@output(b4_parser_file_name@)@
+b4_copyright([Implementation for Bison's Yacc-like parsers in C])dnl'
+[
-m4_divert(0)dnl
-#output "b4_output_parser_name"
-b4_copyright([Skeleton parser for Yacc-like parsing with Bison],
- [1984, 1989, 1990, 2000, 2001, 2002])
-
-/* 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
define necessary library symbols; they are noted "INFRINGES ON
USER NAME SPACE" below. */
-/* Identify Bison output. */
-#define YYBISON 1
-
-/* Pure parsers. */
-#define YYPURE b4_pure
-
-/* Using locations. */
-#define YYLSP_NEEDED b4_locations_flag
-
-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_identification
+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. */
# undef YYERROR_VERBOSE
# define YYERROR_VERBOSE 1
#else
-# define YYERROR_VERBOSE b4_error_verbose
+# define YYERROR_VERBOSE ]b4_error_verbose_flag[
#endif
-#ifndef YYSTYPE
-m4_ifdef([b4_stype],
-[#line b4_stype_line "b4_filename"
-typedef union b4_stype yystype;
-/* Line __line__ of __file__. */
-#line __oline__ "__ofile__"],
-[typedef int yystype;])
-# define YYSTYPE yystype
-# define YYSTYPE_IS_TRIVIAL 1
+/* Enabling the token table. */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE ]b4_token_table[
#endif
-#ifndef YYLTYPE
-typedef struct yyltype
+]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
+#endif]b4_locations_if([[
+
+#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE
{
int first_line;
int first_column;
int last_line;
int last_column;
-} yyltype;
-# define YYLTYPE b4_location_type
+} 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 __file__. */
-#line __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
-/* The parser invokes alloca or malloc; define the necessary symbols. */
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
-# if YYSTACK_USE_ALLOCA
-# define YYSTACK_ALLOC alloca
+#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 <stddef.h> /* INFRINGES ON USER NAME SPACE */
+# define YYSIZE_T size_t
# else
-# ifndef YYSTACK_USE_ALLOCA
-# if defined (alloca) || defined (_ALLOCA_H)
-# define YYSTACK_ALLOC alloca
+# define YYSIZE_T unsigned int
+# endif
+#endif
+
+#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
+
+#ifndef YY_
+# if YYENABLE_NLS
+# if ENABLE_NLS
+# include <libintl.h> /* 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
+
+]b4_push_if([],
+[[/* The parser invokes alloca or malloc; define the necessary symbols. */
+
+# ifdef YYSTACK_USE_ALLOCA
+# if YYSTACK_USE_ALLOCA
+# ifdef __GNUC__
+# define YYSTACK_ALLOC __builtin_alloca
+# elif defined __BUILTIN_VA_ARG_INCR
+# include <alloca.h> /* INFRINGES ON USER NAME SPACE */
+# elif defined _AIX
+# define YYSTACK_ALLOC __alloca
+# elif defined _MSC_VER
+# include <malloc.h> /* INFRINGES ON USER NAME SPACE */
+# define alloca _alloca
# else
-# ifdef __GNUC__
-# define YYSTACK_ALLOC __builtin_alloca
+# define YYSTACK_ALLOC alloca
+# 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
+# endif
# endif
# endif
# endif
# endif
-# ifdef YYSTACK_ALLOC
- /* Pacify GCC's `empty if-body' warning. */
-# define YYSTACK_FREE(Ptr) do { /* empty */; } while (0)
+]])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
-# if defined (__STDC__) || defined (__cplusplus)
+# 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 <stdlib.h> /* INFRINGES ON USER NAME SPACE */
-# define YYSIZE_T size_t
+# 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
-# define YYSTACK_ALLOC malloc
-# define YYSTACK_FREE free
# endif
-#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */
+#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
-#if (! defined (yyoverflow) \
- && (! defined (__cplusplus) \
- || (YYLTYPE_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_MAX (sizeof (union yyalloc) - 1)
+# 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)) \
- + 2 * YYSTACK_GAP_MAX)],
+ ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+ + 2 * YYSTACK_GAP_MAXIMUM)],
[# define YYSTACK_BYTES(N) \
- ((N) * (sizeof (short) + sizeof (YYSTYPE)) \
- + YYSTACK_GAP_MAX)])
+ ((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 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]]; \
+ (To)[yyi] = (From)[yyi]; \
} \
- while (0)
+ while (YYID (0))
# endif
# endif
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; \
- yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAX; \
+ YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \
+ Stack = &yyptr->Stack_alloc; \
+ yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
yyptr += yynewbytes / sizeof (*yyptr); \
} \
- while (0)
+ while (YYID (0))
#endif
-#if defined (__STDC__) || defined (__cplusplus)
- typedef signed char yysigned_char;
-#else
- typedef short yysigned_char;
-#endif
-
-/* YYFINAL -- State number of the termination state. */
-#define YYFINAL b4_final_state_number
+/* 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. */
-#define YYNTOKENS b4_tokens_number
-/* YYNNTS -- Number of nonterminals. */
-#define YYNNTS b4_nterms_number
-/* YYNRULES -- Number of rules. */
-#define YYNRULES b4_rules_number
-/* 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(X) \
- ((unsigned)(X) <= YYMAXUTOK ? yytranslate[[X]] : YYUNDEFTOK)
-
-/* YYTRANSLATE[[YYLEX]] -- Bison symbol number corresponding to YYLEX. */
-static const b4_int_type_for([b4_translate]) yytranslate[[]] =
+#define YYLAST ]b4_last[
+
+/* YYNTOKENS -- Number of terminals. */
+#define YYNTOKENS ]b4_tokens_number[
+/* YYNNTS -- Number of nonterminals. */
+#define YYNNTS ]b4_nterms_number[
+/* YYNRULES -- Number of rules. */
+#define YYNRULES ]b4_rules_number[
+/* YYNSTATES -- Number of states. */
+#define YYNSTATES ]b4_states_number[
+
+/* YYTRANSLATE[YYX] -- Symbol number corresponding to YYX as returned
+ by yylex, with out-of-bounds checking. */
+#define YYUNDEFTOK ]b4_undef_token_number[
+#define YYMAXUTOK ]b4_user_token_number_max[
+
+#define YYTRANSLATE(YYX) \
+ ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM
+ as returned by yylex, without out-of-bounds checking. */
+static const ]b4_int_type_for([b4_translate])[ yytranslate[] =
{
- b4_translate
+ ]b4_translate[
};
#if YYDEBUG
-/* YYPRHS[[YYN]] -- Index of the first RHS symbol of rule number YYN in
- YYRHS. */
-static const b4_int_type_for([b4_prhs]) yyprhs[[]] =
-{
- b4_prhs
-};
-
-/* YYRHS -- A `-1'-separated list of the rules' RHS. */
-static const b4_int_type_for([b4_rhs]) yyrhs[[]] =
-{
- b4_rhs
-};
-
-/* YYRLINE[[YYN]] -- source line where rule number YYN was defined. */
-static const b4_int_type_for([b4_rline]) yyrline[[]] =
-{
- b4_rline
-};
+]b4_integral_parser_table_define([rline], [b4_rline],
+ [YYRLINE[YYN] -- Source line where rule number YYN was defined.])[
#endif
-#if YYDEBUG || YYERROR_VERBOSE
-/* YYTNME[[SYMBOL-NUM]] -- String name of the symbol SYMBOL-NUM.
- First, the terminals, then, starting at YYNTOKENS, nonterminals. */
-static const char *const yytname[[]] =
+#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
+ ]b4_tname[
};
#endif
# ifdef YYPRINT
-/* YYTOKNUM[[YYLEX-NUM]] -- Internal token number corresponding to
- token YYLEX-NUM. */
-static const b4_int_type_for([b4_toknum]) yytoknum[[]] =
+/* YYTOKNUM[NUM] -- (External) token number corresponding to the
+ (internal) symbol number NUM (which must be that of a token). */
+static const ]b4_int_type_for([b4_toknum])[ yytoknum[] =
{
- b4_toknum
+ ]b4_toknum[
};
# endif
-/* YYR1[[YYN]] -- Symbol number of symbol that rule YYN derives. */
-static const b4_int_type_for([b4_r1]) yyr1[[]] =
-{
- b4_r1
-};
+#define YYPACT_NINF ]b4_pact_ninf[
-/* YYR2[[YYN]] -- Number of symbols composing right hand side of rule YYN. */
-static const b4_int_type_for([b4_r2]) yyr2[[]] =
-{
- b4_r2
-};
+#define YYTABLE_NINF ]b4_table_ninf[
-/* YYDEFACT[[STATE-NAME]] -- Default rule to reduce with in state
- STATE-NUM 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]]. */
-static const b4_int_type_for([b4_defgoto]) yydefgoto[[]] =
-{
- b4_defgoto
-};
-
-/* YYPACT[[STATE-NUM]] -- Index in YYTABLE of the portion describing
- STATE-NUM. */
-#define YYPACT_NINF b4_pact_ninf
-static const b4_int_type_for([b4_pact]) yypact[[]] =
-{
- b4_pact
-};
-
-/* YYPGOTO[[NTERM-NUM]]. */
-static const b4_int_type_for([b4_pgoto]) yypgoto[[]] =
-{
- b4_pgoto
-};
-
-/* 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, parse error. */
-#define YYTABLE_NINF b4_table_ninf
-static const b4_int_type_for([b4_table]) yytable[[]] =
-{
- b4_table
-};
-
-static const b4_int_type_for([b4_check]) yycheck[[]] =
-{
- b4_check
-};
-
-/* YYSTOS[[STATE-NUM]] -- The (internal number of the) accessing
- symbol of state STATE-NUM. */
-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 <stddef.h> /* INFRINGES ON USER NAME SPACE */
-# define YYSIZE_T size_t
-# endif
-#endif
-#if ! defined (YYSIZE_T)
-# define YYSIZE_T unsigned int
-#endif
+]b4_parser_tables_define[
#define yyerrok (yyerrstatus = 0)
#define yyclearin (yychar = YYEMPTY)
-#define YYEMPTY -2
+#define YYEMPTY (-2)
#define YYEOF 0
#define YYACCEPT goto yyacceptlab
#define YYABORT goto yyabortlab
-#define YYERROR goto yyerrlab1
+#define YYERROR goto yyerrorlab
+
/* Like YYERROR except do call yyerror. This remains here temporarily
to ease the transition to the new meaning of YYERROR, for GCC.
{ \
yychar = (Token); \
yylval = (Value); \
- yychar1 = YYTRANSLATE (yychar); \
- YYPOPSTACK; \
+ yytoken = YYTRANSLATE (yychar); \
+ YYPOPSTACK (1); \
goto yybackup; \
} \
else \
- { \
- yyerror ("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;
+# 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
+
+
+/* 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 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
+
/* 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)
+# define YYLEX ]b4_c_function_call([yylex], [int], b4_lex_param)[
#endif
/* Enable debugging if requested. */
do { \
if (yydebug) \
YYFPRINTF Args; \
-} while (0)
-# define YYDSYMPRINT(Args) \
-do { \
- if (yydebug) \
- yysymprint Args; \
-} while (0)
+} while (YYID (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))
+
+]b4_yy_symbol_print_generate([b4_c_function_def])[
+
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (included). |
+`------------------------------------------------------------------*/
+
+]b4_c_function_def([yy_stack_print], [static void],
+ [[yytype_int16 *yybottom], [yybottom]],
+ [[yytype_int16 *yytop], [yytop]])[
+{
+ YYFPRINTF (stderr, "Stack now");
+ for (; yybottom <= yytop; yybottom++)
+ {
+ int yybot = *yybottom;
+ YYFPRINTF (stderr, " %d", yybot);
+ }
+ YYFPRINTF (stderr, "\n");
+}
+
+# define YY_STACK_PRINT(Bottom, Top) \
+do { \
+ if (yydebug) \
+ yy_stack_print ((Bottom), (Top)); \
+} while (YYID (0))
+
+
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced. |
+`------------------------------------------------*/
+
+]b4_c_function_def([yy_reduce_print], [static void],
+ [[yytype_int16 *yyssp], [yyssp]],
+ [[YYSTYPE *yyvsp], [yyvsp]],
+ b4_locations_if([[[YYLTYPE *yylsp], [yylsp]],
+ ])[[int yyrule], [yyrule]]m4_ifset([b4_parse_param], [,
+ b4_parse_param]))[
+{
+ unsigned long int yylno = yyrline[yyrule];
+ int yynrhs = yyr2[yyrule];
+ int yyi;
+ 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,
+ yystos[yyssp[yyi + 1 - yynrhs]],
+ &]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 (yyssp, 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 YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
#endif /* !YYDEBUG */
+
/* YYINITDEPTH -- initial size of the parser's stacks. */
#ifndef YYINITDEPTH
-# define YYINITDEPTH b4_stack_depth_init
+# define YYINITDEPTH ]b4_stack_depth_init[
#endif
/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
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 YYMAXDEPTH == 0
-# undef YYMAXDEPTH
-#endif
-
#ifndef YYMAXDEPTH
-# define YYMAXDEPTH b4_stack_depth_max
+# define YYMAXDEPTH ]b4_stack_depth_max[
#endif
\f
#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;
# endif
# endif
-#endif /* !YYERROR_VERBOSE */
-
-\f
-
-#if YYDEBUG
-/*-----------------------------.
-| Print this symbol on YYOUT. |
-`-----------------------------*/
-
-b4_c_function_def([yysymprint],
- [static void],
- [[FILE *yyout], [yyout]],
- [[int yytype], [yytype]],
- [[YYSTYPE yyvalue], [yyvalue]]b4_location_if([,
- [[YYLTYPE yylocation], [yylocation]]]))
+# 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)
{
- /* Pacify ``unused variable'' warnings. */
- (void) yyvalue;
-b4_location_if([ (void) yylocation;
-])dnl
-
- if (yytype < YYNTOKENS)
+ if (*yystr == '"')
{
- YYFPRINTF (yyout, "token %s (", yytname[[yytype]]);
-# ifdef YYPRINT
- YYPRINT (yyout, yytoknum[[yytype]], yyvalue);
-# endif
+ 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: ;
}
- else
- YYFPRINTF (yyout, "nterm %s (", yytname[[yytype]]);
- switch (yytype)
- {
-m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl
- default:
- break;
- }
- YYFPRINTF (yyout, ")");
-}
-#endif /* YYDEBUG. */
+ if (! yyres)
+ return yystrlen (yystr);
+ return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
-/*-----------------------------------------------.
-| Release the memory associated to this symbol. |
-`-----------------------------------------------*/
-
-b4_c_function_def([yydestruct],
- [static void],
- [[int yytype], [yytype]],
- [[YYSTYPE yyvalue], [yyvalue]]b4_location_if([,
- [[YYLTYPE yylocation], [yylocation]]]))
+/* Copy into YYRESULT an error message about the unexpected token
+ YYCHAR while in state YYSTATE. Return the number of bytes copied,
+ including the terminating null byte. If YYRESULT is null, do not
+ copy anything; just return the number of bytes that would be
+ copied. As a special case, return 0 if an ordinary "syntax error"
+ message will do. Return YYSIZE_MAXIMUM if overflow occurs during
+ size calculation. */
+static YYSIZE_T
+yysyntax_error (char *yyresult, int yystate, int yychar)
{
- /* Pacify ``unused variable'' warnings. */
- (void) yyvalue;
-b4_location_if([ (void) yylocation;
-])dnl
+ int yyn = yypact[yystate];
- switch (yytype)
+ if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
+ return 0;
+ else
{
-m4_map([b4_symbol_actions], m4_defn([b4_symbol_destructors]))dnl
- default:
- break;
+ int yytype = YYTRANSLATE (yychar);
+ YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
+ YYSIZE_T yysize = yysize0;
+ YYSIZE_T yysize1;
+ int yysize_overflow = 0;
+ enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+ char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+ int yyx;
+
+# if 0
+ /* This is so xgettext sees the translatable formats that are
+ 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, expecting %s or %s or %s");
+ YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
+# endif
+ char *yyfmt;
+ char const *yyf;
+ static char const yyunexpected[] = "syntax error, unexpected %s";
+ 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))];
+ char const *yyprefix = yyexpecting;
+
+ /* 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 + 1;
+ int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+ int yycount = 1;
+
+ yyarg[0] = yytname[yytype];
+ 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;
+ }
+
+ yyf = YY_(yyformat);
+ yysize1 = yysize + yystrlen (yyf);
+ yysize_overflow |= (yysize1 < yysize);
+ yysize = yysize1;
+
+ if (yysize_overflow)
+ return YYSIZE_MAXIMUM;
+
+ 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) != '\0')
+ {
+ if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
+ {
+ yyp += yytnamerr (yyp, yyarg[yyi++]);
+ yyf += 2;
+ }
+ else
+ {
+ yyp++;
+ yyf++;
+ }
+ }
+ }
+ return yysize;
}
}
-
+#endif /* YYERROR_VERBOSE */
\f
-/* 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
-
+]b4_c_function_decl([yyparse], [int], b4_parse_param)[
+#endif /* ! YYPARSE_PARAM */]])
m4_divert_push([KILL])# ======================== M4 code.
-# b4_declare_parser_variables
-# ---------------------------
+# b4_declare_scanner_communication_variables
+# ------------------------------------------
# Declare the variables that are global, or local to YYPARSE if
# pure-parser.
-m4_define([b4_declare_parser_variables],
-[/* The lookahead symbol. */
+m4_define([b4_declare_scanner_communication_variables],
+[[/* The lookahead symbol. */
int yychar;
/* The semantic value of the lookahead symbol. */
YYSTYPE yylval;
-
-/* Number of parse errors so far. */
-int yynerrs;b4_location_if([
+]b4_locations_if([[
/* Location data for the lookahead symbol. */
-YYLTYPE yylloc;])
-])
+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;
+]])
+
m4_divert_pop([KILL])dnl# ====================== End of M4 code.
-b4_pure_if([],
- [b4_declare_parser_variables])
+b4_pure_if([], [b4_declare_scanner_communication_variables])
+b4_push_if(
+[[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([], [[
-/*----------.
-| yyparse. |
-`----------*/
+static char yypstate_allocated = 0;]])b4_pull_if([
+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
+]])[
+/*-------------------------.
+| yyparse or yypush_parse. |
+`-------------------------*/
+]b4_push_if([
+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]))], [
#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;
+#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 yychar1 = 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;]])[
+#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 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;
/*------------------------------------------------------------.
`------------------------------------------------------------*/
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:
#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);
#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));
YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+ if (yystate == YYFINAL)
+ YYACCEPT;
+
goto yybackup;
/*-----------.
`-----------*/
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)
goto yydefault;
/* Not known => get a lookahead token if don't already have one. */
- /* yychar is either YYEMPTY or YYEOF
- or a valid token in external form. */
-
+ /* 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;]])[
}
- /* Convert token to internal form (in yychar1) for indexing tables with. */
-
- if (yychar <= 0) /* This means end of input. */
+ if (yychar <= YYEOF)
{
- yychar1 = 0;
- yychar = YYEOF; /* Don't call YYLEX any more. */
-
+ yychar = yytoken = YYEOF;
YYDPRINTF ((stderr, "Now at end of input.\n"));
}
else
{
- yychar1 = YYTRANSLATE (yychar);
-
- /* We have to keep this `#if YYDEBUG', since we use variables
- which are defined only if `YYDEBUG' is set. */
- YYDPRINTF ((stderr, "Next token is "));
- YYDSYMPRINT ((stderr, yychar1, yylval]b4_location_if([, yyloc])[));
- YYDPRINTF ((stderr, "\n"));
+ yytoken = YYTRANSLATE (yychar);
+ YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
}
- /* If the proper action on seeing token YYCHAR1 is to reduce or to
+ /* If the proper action on seeing token YYTOKEN is to reduce or to
detect an error, take that action. */
- yyn += yychar1;
- if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yychar1)
+ yyn += yytoken;
+ if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
goto yydefault;
yyn = yytable[yyn];
if (yyn <= 0)
goto yyreduce;
}
- if (yyn == YYFINAL)
- YYACCEPT;
-
- /* Shift the lookahead token. */
- YYDPRINTF ((stderr, "Shifting token %d (%s), ",
- yychar, yytname[yychar1]));
-
- /* 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;
GCC warning that YYVAL may be used uninitialized. */
yyval = yyvsp[1-yylen];
-]b4_location_if(
-[ /* Default location. */
- YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);])[
-
-#if YYDEBUG
- /* We have to keep this `#if YYDEBUG', since we use variables which
- are defined only if `YYDEBUG' is set. */
- if (yydebug)
- {
- int yyi;
-
- YYFPRINTF (stderr, "Reducing via rule %d (line %d), ",
- yyn - 1, yyrline[yyn]);
-
- /* Print the symbols being reduced, and their result. */
- for (yyi = yyprhs[yyn]; 0 <= yyrhs[yyi]; yyi++)
- YYFPRINTF (stderr, "%s ", yytname[yyrhs[yyi]]);
- YYFPRINTF (stderr, " -> %s\n", yytname[yyr1[yyn]]);
- }
-#endif
+]b4_locations_if(
+[[ /* Default location. */
+ YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);]])[
+ YY_REDUCE_PRINT (yyn);
switch (yyn)
- ]{
- b4_actions
- }
-
-/* Line __line__ of __file__. */
-#line __oline__ "__ofile__"
-\f
-[ yyvsp -= yylen;
- yyssp -= yylen;
-]b4_location_if([ yylsp -= yylen;])[
-
-#if YYDEBUG
- if (yydebug)
{
- short *yyssp1 = yyss - 1;
- YYFPRINTF (stderr, "state stack now");
- while (yyssp1 != yyssp)
- YYFPRINTF (stderr, " %d", *++yyssp1);
- YYFPRINTF (stderr, "\n");
+ ]b4_user_actions[
+ default: break;
}
-#endif
+ 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
if (!yyerrstatus)
{
++yynerrs;
-#if YYERROR_VERBOSE
- yyn = yypact[yystate];
-
- if (YYPACT_NINF < yyn && yyn < YYLAST)
- {
- YYSIZE_T yysize = 0;
- int yytype = YYTRANSLATE (yychar);
- char *yymsg;
- int yyx, yycount;
-
- yycount = 0;
- /* Start YYX at -YYN if negative to avoid negative indexes in
- YYCHECK. */
- for (yyx = yyn < 0 ? -yyn : 0;
- yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++)
- if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
- yysize += yystrlen (yytname[yyx]) + 15, yycount++;
- yysize += yystrlen ("parse error, unexpected ") + 1;
- yysize += yystrlen (yytname[yytype]);
- yymsg = (char *) YYSTACK_ALLOC (yysize);
- if (yymsg != 0)
- {
- char *yyp = yystpcpy (yymsg, "parse error, unexpected ");
- yyp = yystpcpy (yyp, yytname[yytype]);
-
- if (yycount < 5)
- {
- yycount = 0;
- for (yyx = yyn < 0 ? -yyn : 0;
- yyx < (int) (sizeof (yytname) / sizeof (char *));
- yyx++)
- if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
- {
- const char *yyq = ! yycount ? ", expecting " : " or ";
- yyp = yystpcpy (yyp, yyq);
- yyp = yystpcpy (yyp, yytname[yyx]);
- yycount++;
- }
- }
- yyerror (yymsg);
+#if ! YYERROR_VERBOSE
+ yyerror (]b4_yyerror_args[YY_("syntax error"));
+#else
+ {
+ YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
+ if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
+ {
+ YYSIZE_T yyalloc = 2 * yysize;
+ if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
+ yyalloc = YYSTACK_ALLOC_MAXIMUM;
+ if (yymsg != yymsgbuf)
YYSTACK_FREE (yymsg);
- }
- else
- yyerror ("parse error; also virtual memory exhausted");
- }
- else
-#endif /* YYERROR_VERBOSE */
- yyerror ("parse error");
+ yymsg = (char *) YYSTACK_ALLOC (yyalloc);
+ if (yymsg)
+ yymsg_alloc = yyalloc;
+ else
+ {
+ yymsg = yymsgbuf;
+ yymsg_alloc = sizeof yymsgbuf;
+ }
+ }
+
+ if (0 < yysize && yysize <= yymsg_alloc)
+ {
+ (void) yysyntax_error (yymsg, yystate, yychar);
+ yyerror (]b4_yyerror_args[yymsg);
+ }
+ else
+ {
+ yyerror (]b4_yyerror_args[YY_("syntax error"));
+ if (yysize != 0)
+ goto yyexhaustedlab;
+ }
+ }
+#endif
}
- goto yyerrlab1;
+]b4_locations_if([[ yyerror_range[0] = yylloc;]])[
-/*----------------------------------------------------.
-| yyerrlab1 -- error raised explicitly by an action. |
-`----------------------------------------------------*/
-yyerrlab1:
if (yyerrstatus == 3)
{
/* If just tried and failed to reuse lookahead token after an
error, discard it. */
- /* Return failure if at end of input. */
- if (yychar == YYEOF)
- {
- /* Pop the error token. */
- YYPOPSTACK;
- /* Pop the rest of the stack. */
- while (yyss < yyssp)
- {
- YYDPRINTF ((stderr, "Error: popping "));
- YYDSYMPRINT ((stderr,
- yystos[*yyssp],
- *yyvsp]b4_location_if([, *yylsp])[));
- YYDPRINTF ((stderr, "\n"));
- yydestruct (yystos[*yyssp], *yyvsp]b4_location_if([, *yylsp])[);
- YYPOPSTACK;
- }
- YYABORT;
- }
-
- YYDPRINTF ((stderr, "Discarding token %d (%s).\n",
- yychar, yytname[yychar1]));
- yydestruct (yychar1, yylval]b4_location_if([, yylloc])[);
- yychar = YYEMPTY;
+ if (yychar <= YYEOF)
+ {
+ /* Return failure if at end of input. */
+ if (yychar == YYEOF)
+ YYABORT;
+ }
+ else
+ {
+ yydestruct ("Error: discarding",
+ yytoken, &yylval]b4_locations_if([, &yylloc])[]b4_user_args[);
+ yychar = YYEMPTY;
+ }
}
/* Else will try to reuse lookahead token after shifting the error
token. */
+ goto yyerrlab1;
+
+
+/*---------------------------------------------------.
+| yyerrorlab -- error raised explicitly by YYERROR. |
+`---------------------------------------------------*/
+yyerrorlab:
+
+ /* 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;
+
+]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;
+ goto yyerrlab1;
+
+/*-------------------------------------------------------------.
+| yyerrlab1 -- common code for both syntax error and YYERROR. |
+`-------------------------------------------------------------*/
+yyerrlab1:
yyerrstatus = 3; /* Each real token shifted decrements this. */
for (;;)
if (yyssp == yyss)
YYABORT;
- YYDPRINTF ((stderr, "Error: popping "));
- YYDSYMPRINT ((stderr,
- yystos[*yyssp], *yyvsp]b4_location_if([, *yylsp])[));
- YYDPRINTF ((stderr, "\n"));
-
- yydestruct (yystos[yystate], *yyvsp]b4_location_if([, *yylsp])[);
- yyvsp--;
- yystate = *--yyssp;
-]b4_location_if([ yylsp--;])[
-
-#if YYDEBUG
- if (yydebug)
- {
- short *yyssp1 = yyss - 1;
- YYFPRINTF (stderr, "Error: state stack now");
- while (yyssp1 != yyssp)
- YYFPRINTF (stderr, " %d", *++yyssp1);
- YYFPRINTF (stderr, "\n");
- }
-#endif
+]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([ *++yylsp = yylloc;])[
+]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;
yyresult = 1;
goto yyreturn;
-#ifndef yyoverflow
-/*----------------------------------------------.
-| yyoverflowlab -- parser overflow comes here. |
-`----------------------------------------------*/
-yyoverflowlab:
- yyerror ("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)
+ 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
- return yyresult;
-]}
-
-
-b4_epilogue
-m4_if(b4_defines_flag, 0, [],
-[#output "b4_output_header_name"
-b4_copyright([Skeleton parser for Yacc-like parsing with Bison],
- [1984, 1989, 1990, 2000, 2001, 2002])
-
-/* 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. */
-
-#ifndef b4_header_guard
-# define b4_header_guard
-
-b4_token_defines(b4_tokens)
-
-#ifndef YYSTYPE
-m4_ifdef([b4_stype],
-[#line b4_stype_line "b4_filename"
-typedef union b4_stype yystype;
-/* Line __line__ of __file__. */
-#line __oline__ "__ofile__"],
-[typedef int yystype;])
-# define YYSTYPE yystype
+]b4_push_if([[ yyps->yynew = 1;
+
+yypushreturn:
+]])[#if YYERROR_VERBOSE
+ if (yymsg != yymsgbuf)
+ YYSTACK_FREE (yymsg);
+#endif
+ /* Make sure YYID is used. */
+ return YYID (yyresult);
+}
+
+
+]b4_epilogue
+b4_defines_if(
+[@output(b4_spec_defines_file@)@
+b4_copyright([Interface for Bison's Yacc-like parsers in C])dnl'
+
+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
#endif
-b4_pure_if([],
-[extern YYSTYPE b4_prefix[]lval;])
+]b4_pure_if([], [[extern YYSTYPE ]b4_prefix[lval;]])
-b4_location_if(
-[#ifndef YYLTYPE
-typedef struct yyltype
+b4_locations_if(
+[#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE
{
int first_line;
int first_column;
int last_line;
int last_column;
-} yyltype;
-# define YYLTYPE yyltype
+} YYLTYPE;
+# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
#endif
-m4_if(b4_pure, [0],
-[extern YYLTYPE b4_prefix[]lloc;])
-])
-#endif /* not b4_header_guard */
-])
+]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)
+m4_popdef([b4_copyright_years])
projects / bison.git / blobdiff