X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/fc5734fe23f35e5ce15f6b9c550115fb69113ea2..68cae94e0b4e83246787fc5a413f085513ae9160:/data/yacc.c diff --git a/data/yacc.c b/data/yacc.c index d2d06a10..ecdcda99 100644 --- a/data/yacc.c +++ b/data/yacc.c @@ -1,8 +1,8 @@ -m4_divert(-1) -*- C -*- -m4_include([c.m4]) +m4_divert(-1) -*- C -*- # Yacc compatible skeleton for Bison -# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002 + +# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006 # Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify @@ -17,14 +17,84 @@ m4_include([c.m4]) # 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 +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +# 02110-1301 USA + +m4_include(b4_pkgdatadir/[c.m4]) + +## ---------------- ## +## Default values. ## +## ---------------- ## + +# Stack parameters. +m4_define_default([b4_stack_depth_max], [10000]) +m4_define_default([b4_stack_depth_init], [200]) + + +## ------------------------ ## +## Pure/impure interfaces. ## +## ------------------------ ## + + +# 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])], + [$2])]) + + +# b4_yyerror_args +# --------------- +# Arguments passed to yyerror: user args plus yylloc. +m4_define([b4_yyerror_args], +[b4_yacc_pure_if([b4_location_if([&yylloc, ])])dnl +m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])]) + + +# b4_lex_param +# ------------ +# Accumulate in b4_lex_param all the yylex arguments. +# b4_lex_param arrives quoted twice, but we want to keep only one level. +m4_define([b4_lex_param], +m4_dquote(b4_pure_if([[[[YYSTYPE *]], [[&yylval]]][]dnl +b4_location_if([, [[YYLTYPE *], [&yylloc]]])m4_ifdef([b4_lex_param], [, ])])dnl +m4_ifdef([b4_lex_param], b4_lex_param))) + + + +## ------------ ## +## Data Types. ## +## ------------ ## + +# b4_int_type(MIN, MAX) +# --------------------- +# Return the smallest int type able to handle numbers ranging from +# MIN to MAX (included). We overwrite the version from c.m4 which relies +# on "signed char" which is not portable to old K&R compilers. +m4_define([b4_int_type], +[m4_if(b4_ints_in($@, [0], [255]), [1], [unsigned char], + b4_ints_in($@, [-128], [127]), [1], [yysigned_char], + + b4_ints_in($@, [0], [65535]), [1], [unsigned short int], + b4_ints_in($@, [-32768], [32767]), [1], [short int], + + m4_eval([0 <= $1]), [1], [unsigned int], + + [int])]) + + +## ----------------- ## +## Semantic Values. ## +## ----------------- ## + # b4_lhs_value([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]) @@ -32,7 +102,7 @@ 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]))]) @@ -40,20 +110,11 @@ m4_define([b4_rhs_value], ## Locations. ## ## ----------- ## -# b4_location_if(IF-TRUE, IF-FALSE) -# --------------------------------- -# Expand IF-TRUE, if locations are used, IF-FALSE otherwise. -m4_define([b4_location_if], -[m4_if(b4_locations_flag, [1], - [$1], - [$2])]) - - # b4_lhs_location() # ----------------- # Expansion of @$. m4_define([b4_lhs_location], -[yyloc]) +[(yyloc)]) # b4_rhs_location(RULE-LENGTH, NUM) @@ -61,45 +122,7 @@ 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])@:>@]) - - - -## -------------- ## -## %pure-parser. ## -## -------------- ## - -# b4_pure_if(IF-TRUE, IF-FALSE) -# ----------------------------- -# Expand IF-TRUE, if %pure-parser, IF-FALSE otherwise. -m4_define([b4_pure_if], -[m4_if(b4_pure, [1], - [$1], - [$2])]) - - -## ------------------- ## -## 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@{($2) - ($1)@})]) @@ -107,31 +130,20 @@ m4_define_default([b4_header_guard], ## 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(0)dnl -#output "b4_output_parser_name" +@output @output_parser_name@ b4_copyright([Skeleton parser for Yacc-like parsing with Bison], - [1984, 1989, 1990, 2000, 2001, 2002]) + [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006])[ + +/* As a special exception, when this file is copied by Bison into a + Bison output file, you may use that output file without restriction. + This special exception was added by the Free Software Foundation + in version 1.24 of Bison. */ -/* 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 @@ -140,18 +152,9 @@ b4_copyright([Skeleton parser for Yacc-like parsing with Bison], 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 - +]b4_identification m4_if(b4_prefix[], [yy], [], -[/* If NAME_PREFIX is specified substitute the variables and functions - names. */ +[/* Substitute the variable and function names. */ #define yyparse b4_prefix[]parse #define yylex b4_prefix[]lex #define yyerror b4_prefix[]error @@ -159,16 +162,16 @@ m4_if(b4_prefix[], [yy], [], #define yychar b4_prefix[]char #define yydebug b4_prefix[]debug #define yynerrs b4_prefix[]nerrs -b4_location_if([#define yylloc b4_prefix[]lloc])]) +b4_location_if([#define yylloc b4_prefix[]lloc])])[ -/* Copy the first part of user declarations. */ -b4_pre_prologue +]b4_token_enums_defines(b4_tokens)[ -b4_token_defines(b4_tokens) +/* Copy the first part of user declarations. */ +]b4_pre_prologue[ /* Enabling traces. */ #ifndef YYDEBUG -# define YYDEBUG b4_debug +# define YYDEBUG ]b4_debug[ #endif /* Enabling verbose error messages. */ @@ -176,111 +179,198 @@ b4_token_defines(b4_tokens) # undef YYERROR_VERBOSE # define YYERROR_VERBOSE 1 #else -# define YYERROR_VERBOSE b4_error_verbose +# define YYERROR_VERBOSE ]b4_error_verbose[ #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 +/* Enabling the token table. */ +#ifndef YYTOKEN_TABLE +# define YYTOKEN_TABLE ]b4_token_table[ +#endif + +#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED) +]m4_ifdef([b4_stype], +[typedef union m4_bregexp(b4_stype, [^{], [YYSTYPE ]) +b4_stype +/* Line __line__ of yacc.c. */ +b4_syncline([@oline@], [@ofile@]) + YYSTYPE;], +[typedef int YYSTYPE;])[ +# define yystype YYSTYPE /* obsolescent; will be withdrawn */ +# define YYSTYPE_IS_DECLARED 1 # define YYSTYPE_IS_TRIVIAL 1 #endif -#ifndef YYLTYPE -typedef struct yyltype +]b4_location_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_ltype +} YYLTYPE; +# define yyltype YYLTYPE /* obsolescent; will be withdrawn */ +# define YYLTYPE_IS_DECLARED 1 # define YYLTYPE_IS_TRIVIAL 1 #endif +])[ /* Copy the second part of user declarations. */ -b4_post_prologue +]b4_post_prologue + +/* Line __line__ of yacc.c. */ +b4_syncline([@oline@], [@ofile@])[ + +#ifndef YYSIZE_T +# if defined (__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 +#endif -/* Line __line__ of __file__. */ -#line __oline__ "__ofile__" +#define YYSIZE_MAXIMUM ((YYSIZE_T) -1) + +#ifndef YY_ +# if 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 i], [i]])[ +{ + return i; +} +#endif #if ! defined (yyoverflow) || YYERROR_VERBOSE /* The parser invokes alloca or malloc; define the necessary symbols. */ -# if YYSTACK_USE_ALLOCA -# define YYSTACK_ALLOC alloca -# else -# ifndef YYSTACK_USE_ALLOCA -# if defined (alloca) || defined (_ALLOCA_H) -# define YYSTACK_ALLOC alloca +# ifdef YYSTACK_USE_ALLOCA +# if YYSTACK_USE_ALLOCA +# 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 -# ifdef __GNUC__ -# define YYSTACK_ALLOC __builtin_alloca +# 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) + /* 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) -# include /* INFRINGES ON USER NAME SPACE */ -# define YYSIZE_T size_t +# define YYSTACK_ALLOC YYMALLOC +# define YYSTACK_FREE YYFREE +# ifndef YYSTACK_ALLOC_MAXIMUM +# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM +# endif +# ifdef __cplusplus +extern "C" { +# 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 +# ifdef __cplusplus +} # endif -# define YYSTACK_ALLOC malloc -# define YYSTACK_FREE free # endif #endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */ #if (! defined (yyoverflow) \ && (! defined (__cplusplus) \ - || (YYLTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL))) + || (]b4_location_if([[defined (YYLTYPE_IS_TRIVIAL) && YYLTYPE_IS_TRIVIAL \ + && ]])[defined (YYSTYPE_IS_TRIVIAL) && YYSTYPE_IS_TRIVIAL))) /* A type that is properly aligned for any stack member. */ union yyalloc { - short yyss; + short int yyss; YYSTYPE yyvs; - b4_location_if([ YYLTYPE yyls; + ]b4_location_if([ YYLTYPE yyls; ])dnl -}; +[}; /* 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_location_if( [# define YYSTACK_BYTES(N) \ - ((N) * (sizeof (short) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \ - + 2 * YYSTACK_GAP_MAX)], + ((N) * (sizeof (short int) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \ + + 2 * YYSTACK_GAP_MAXIMUM)], [# define YYSTACK_BYTES(N) \ - ((N) * (sizeof (short) + sizeof (YYSTYPE)) \ - + YYSTACK_GAP_MAX)]) + ((N) * (sizeof (short int) + 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 @@ -295,161 +385,156 @@ b4_location_if( YYSIZE_T yynewbytes; \ YYCOPY (&yyptr->Stack, Stack, yysize); \ Stack = &yyptr->Stack; \ - yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAX; \ + yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \ yyptr += yynewbytes / sizeof (*yyptr); \ } \ - while (0) + while (YYID (0)) #endif -/* YYFINAL -- State number of the termination state. */ -#define YYFINAL b4_final_state_number -#define YYLAST b4_last +#if ]b4_c_modern[ + typedef signed char yysigned_char; +#else + typedef short int yysigned_char; +#endif -/* 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 +/* 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 YYUNDEFTOK ]b4_undef_token_number[ +#define YYMAXUTOK ]b4_user_token_number_max[ -#define YYTRANSLATE(X) \ - ((unsigned)(X) <= YYMAXUTOK ? yytranslate[[X]] : YYUNDEFTOK) +#define YYTRANSLATE(YYX) \ + ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK) -/* YYTRANSLATE[[YYLEX]] -- Bison symbol number corresponding to YYLEX. */ -static const b4_int_type_for([b4_translate]) yytranslate[[]] = +/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */ +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 +/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in YYRHS. */ -static const b4_int_type_for([b4_prhs]) yyprhs[[]] = +static const ]b4_int_type_for([b4_prhs])[ yyprhs[] = { - b4_prhs + ]b4_prhs[ }; -/* YYRHS -- A `-1'-separated list of the rules' RHS. */ -static const b4_int_type_for([b4_rhs]) yyrhs[[]] = +/* YYRHS -- A `-1'-separated list of the rules' RHS. */ +static const ]b4_int_type_for([b4_rhs])[ yyrhs[] = { - b4_rhs + ]b4_rhs[ }; -/* YYRLINE[[YYN]] -- source line where rule number YYN was defined. */ -static const b4_int_type_for([b4_rline]) yyrline[[]] = +/* YYRLINE[YYN] -- source line where rule number YYN was defined. */ +static const ]b4_int_type_for([b4_rline])[ yyrline[] = { - b4_rline + ]b4_rline[ }; #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 -/* YYTOKNUM[[YYLEX-NUM]] -- Internal token number corresponding to +# ifdef YYPRINT +/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to token YYLEX-NUM. */ -static const b4_int_type_for([b4_toknum]) yytoknum[[]] = +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[[]] = +/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ +static const ]b4_int_type_for([b4_r1])[ yyr1[] = { - b4_r1 + ]b4_r1[ }; -/* YYR2[[YYN]] -- Number of symbols composing right hand side of rule YYN. */ -static const b4_int_type_for([b4_r2]) yyr2[[]] = +/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ +static const ]b4_int_type_for([b4_r2])[ yyr2[] = { - b4_r2 + ]b4_r2[ }; -/* YYDEFACT[[STATE-NAME]] -- Default rule to reduce with in state +/* 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[[]] = +static const ]b4_int_type_for([b4_defact])[ yydefact[] = { - b4_defact + ]b4_defact[ }; -/* YYDEFGOTO[[NTERM-NUM]]. */ -static const b4_int_type_for([b4_defgoto]) yydefgoto[[]] = +/* YYDEFGOTO[NTERM-NUM]. */ +static const ]b4_int_type_for([b4_defgoto])[ yydefgoto[] = { - b4_defgoto + ]b4_defgoto[ }; -/* YYPACT[[STATE-NUM]] -- Index in YYTABLE of the portion describing +/* 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[[]] = +#define YYPACT_NINF ]b4_pact_ninf[ +static const ]b4_int_type_for([b4_pact])[ yypact[] = { - b4_pact + ]b4_pact[ }; -/* YYPGOTO[[NTERM-NUM]]. */ -static const b4_int_type_for([b4_pgoto]) yypgoto[[]] = +/* YYPGOTO[NTERM-NUM]. */ +static const ]b4_int_type_for([b4_pgoto])[ yypgoto[] = { - b4_pgoto + ]b4_pgoto[ }; -/* YYTABLE[[YYPACT[STATE-NUM]]]. What to do in state STATE-NUM. If +/* 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. */ -#define YYTABLE_NINF b4_table_ninf -static const b4_int_type_for([b4_table]) yytable[[]] = + number is the opposite. If zero, do what YYDEFACT says. + If YYTABLE_NINF, syntax error. */ +#define YYTABLE_NINF ]b4_table_ninf[ +static const ]b4_int_type_for([b4_table])[ yytable[] = { - b4_table + ]b4_table[ }; -static const b4_int_type_for([b4_check]) yycheck[[]] = +static const ]b4_int_type_for([b4_check])[ yycheck[] = { - b4_check + ]b4_check[ }; -/* YYSTOS[[STATE-NUM]] -- The (internal number of the) accessing +/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing symbol of state STATE-NUM. */ -static const b4_int_type_for([b4_stos]) yystos[[]] = +static const ]b4_int_type_for([b4_stos])[ yystos[] = { - b4_stos + ]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 +#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. @@ -465,40 +550,71 @@ do \ { \ 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. */ -b4_pure_if( -[#ifdef YYLEX_PARAM -# define YYLEX yylex (&yylval[]b4_location_if([, &yylloc]), YYLEX_PARAM) +#ifdef YYLEX_PARAM +# define YYLEX yylex (]b4_pure_if([&yylval[]b4_location_if([, &yylloc]), ])[YYLEX_PARAM) #else -# define YYLEX yylex (&yylval[]b4_location_if([, &yylloc])) -#endif], -[#define YYLEX yylex ()]) +# define YYLEX ]b4_c_function_call([yylex], [int], b4_lex_param)[ +#endif /* Enable debugging if requested. */ #if YYDEBUG @@ -512,38 +628,101 @@ b4_pure_if( 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_location_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], + [[short int *bottom], [bottom]], + [[short int *top], [top]])[ +{ + YYFPRINTF (stderr, "Stack now"); + for (; bottom <= top; ++bottom) + YYFPRINTF (stderr, " %d", *bottom); + 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], + [[YYSTYPE *yyvsp], [yyvsp]], + b4_location_if([[[YYLTYPE *yylsp], [yylsp]],]) + [[int yyrule], [yyrule]]m4_ifset([b4_parse_param], [,]) + b4_parse_param)[ +{ + int yynrhs = yyr2[yyrule]; + int yyi; + unsigned long int yylno = yyrline[yyrule]; + YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n", + yyrule - 1, yylno); + /* The symbols being reduced. */ + for (yyi = 0; yyi < yynrhs; yyi++) + { + fprintf (stderr, " $%d = ", yyi + 1); + yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi], + &]b4_rhs_value(yynrhs, yyi + 1)[ + ]b4_location_if([, &]b4_rhs_location(yynrhs, yyi + 1))[]dnl + b4_user_args[); + fprintf (stderr, "\n"); + } +} + +# define YY_REDUCE_PRINT(Rule) \ +do { \ + if (yydebug) \ + yy_reduce_print (yyvsp, ]b4_location_if([yylsp, ])[Rule]b4_user_args[); \ +} while (YYID (0)) + /* Nonzero means print parse trace. It is left uninitialized so that multiple parsers can coexist. */ int yydebug; #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_initdepth +# 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_maxdepth +# define YYMAXDEPTH ]b4_stack_depth_max[ #endif @@ -555,20 +734,13 @@ int yydebug; # 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 @@ -579,17 +751,11 @@ yystrlen (yystr) # 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; @@ -599,184 +765,192 @@ yystpcpy (yydest, yysrc) # endif # endif -#endif /* !YYERROR_VERBOSE */ - - - -#if YYDEBUG -/*-----------------------------. -| Print this symbol on YYOUT. | -`-----------------------------*/ - -b4_c_function([yysymprint], - [static void], - [[FILE*], [yyout]], - [[int], [yytype]], - [[YYSTYPE], [yyvalue]]b4_location_if([, - [[YYLTYPE], [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) - { - YYFPRINTF (yyout, "token %s (", yytname[[yytype]]); -# ifdef YYPRINT - YYPRINT (yyout, yytoknum[[yytype]], yyvalue); -# endif - } - else - YYFPRINTF (yyout, "nterm %s (", yytname[[yytype]]); - - switch (yytype) + if (*yystr == '"') { -m4_map([b4_symbol_actions], m4_defn([b4_symbol_printers]))dnl - default: - break; + size_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: ; } - YYFPRINTF (yyout, ")"); -} -#endif /* YYDEBUG. */ + if (! yyres) + return yystrlen (yystr); -/*----------------------------------------------------------. -| yyreport_parse_error -- report a parse error in YYSTATE. | -`----------------------------------------------------------*/ + return yystpcpy (yyres, yystr) - yyres; +} +# endif -b4_c_function([yyreport_parse_error], - [static void], - [[int], [yystate]], - [[int], [yychar]], - [[YYSTYPE], [yyvalue]]b4_location_if([, - [[YYLTYPE], [yylloc]]])) -[{ -#if YYERROR_VERBOSE +/* 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) +{ int yyn = yypact[yystate]; - if (YYPACT_NINF < yyn && yyn < YYLAST) + if (! (YYPACT_NINF < yyn && yyn < YYLAST)) + return 0; + else { - YYSIZE_T yysize = 0; int yytype = YYTRANSLATE (yychar); - char *yymsg; - int yyx, yycount; + 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; - 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) - yysize += yystrlen (yytname[yyx]) + 15, yycount++; - yysize += yystrlen ("parse error, unexpected ") + 1; - yysize += yystrlen (yytname[yytype]); - yymsg = (char *) YYSTACK_ALLOC (yysize); - if (yymsg != 0) + 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 = 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) { - 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) - { - const char *yyq = ! yycount ? ", expecting " : " or "; - yyp = yystpcpy (yyp, yyq); - yyp = yystpcpy (yyp, yytname[yyx]); - yycount++; - } - } - yyerror (yymsg); - YYSTACK_FREE (yymsg); - } - else - yyerror ("parse error; also virtual memory exhausted"); - } - else -#endif /* YYERROR_VERBOSE */ - yyerror ("parse error"); - - /* Pacify ``unused variable'' warnings. */ - (void) yystate; - (void) yychar; - (void) yyvalue; - ]b4_location_if([(void) yylloc;])[ -}] - - -/*-----------------------------------------------. -| Release the memory associated to this symbol. | -`-----------------------------------------------*/ - -b4_c_function([yydestruct], - [static void], - [[int], [yytype]], - [[YYSTYPE], [yyvalue]]b4_location_if([, - [[YYLTYPE], [yylocation]]])) -{ - /* Pacify ``unused variable'' warnings. */ - (void) yyvalue; -b4_location_if([ (void) yylocation; -])dnl - - switch (yytype) - { -m4_map([b4_symbol_actions], m4_defn([b4_symbol_destructors]))dnl - default: - break; + /* 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 */ + +]b4_yydestruct_generate([b4_c_function_def])[ -/* The user can define YYPARSE_PARAM as the name of an argument to be passed - into yyparse. The argument should have type void *. - It should actually point to an object. - Grammar actions can access the variable by casting it - to the proper pointer type. */ +/* Prevent warnings from -Wmissing-prototypes. */ #ifdef YYPARSE_PARAM -# if defined (__STDC__) || defined (__cplusplus) -# define YYPARSE_PARAM_ARG void *YYPARSE_PARAM -# define YYPARSE_PARAM_DECL -# else -# define YYPARSE_PARAM_ARG YYPARSE_PARAM -# define YYPARSE_PARAM_DECL void *YYPARSE_PARAM; -# endif -#else /* !YYPARSE_PARAM */ -# define YYPARSE_PARAM_ARG -# define YYPARSE_PARAM_DECL -#endif /* !YYPARSE_PARAM */ - -/* Prevent warning if -Wstrict-prototypes. */ -#ifdef __GNUC__ -# ifdef YYPARSE_PARAM -int yyparse (void *); -# else -int yyparse (void); -# endif -#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 */ -m4_divert_push([KILL])# ======================== M4 code. + +]m4_divert_push([KILL])# ======================== M4 code. # b4_declare_parser_variables # --------------------------- # Declare the variables that are global, or local to YYPARSE if -# pure-parser +# pure-parser. m4_define([b4_declare_parser_variables], -[/* The lookahead symbol. */ +[/* The look-ahead symbol. */ int yychar; -/* The semantic value of the lookahead symbol. */ +/* The semantic value of the look-ahead symbol. */ YYSTYPE yylval; -/* Number of parse errors so far. */ +/* Number of syntax errors so far. */ int yynerrs;b4_location_if([ -/* Location data for the lookahead symbol. */ +/* Location data for the look-ahead symbol. */ YYLTYPE yylloc;]) ]) m4_divert_pop([KILL])dnl# ====================== End of M4 code. @@ -784,18 +958,31 @@ m4_divert_pop([KILL])dnl# ====================== End of M4 code. b4_pure_if([], [b4_declare_parser_variables]) -int -yyparse (YYPARSE_PARAM_ARG) - YYPARSE_PARAM_DECL + +/*----------. +| yyparse. | +`----------*/ + +#ifdef YYPARSE_PARAM +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; + int yystate; + 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; + /* Look-ahead token as an internal (translated) token number. */ + int yytoken = 0; +#if YYERROR_VERBOSE + /* Buffer for error messages, and its allocated size. */ + char yymsgbuf[128]; + char *yymsg = yymsgbuf; + YYSIZE_T yymsg_alloc = sizeof yymsgbuf; +#endif /* Three stacks and their tools: `yyss': related to states, @@ -806,22 +993,24 @@ yyparse (YYPARSE_PARAM_ARG) to reallocate them elsewhere. */ /* The state stack. */ - short yyssa[YYINITDEPTH]; - short *yyss = yyssa; - register short *yyssp; + short int yyssa[YYINITDEPTH]; + short int *yyss = yyssa; + short int *yyssp; /* The semantic value stack. */ YYSTYPE yyvsa[YYINITDEPTH]; YYSTYPE *yyvs = yyvsa; - register YYSTYPE *yyvsp; + YYSTYPE *yyvsp; ]b4_location_if( [[ /* The location stack. */ YYLTYPE yylsa[YYINITDEPTH]; YYLTYPE *yyls = yylsa; - YYLTYPE *yylsp;]])[ + YYLTYPE *yylsp; + /* The locations where the error started and ended. */ + YYLTYPE yyerror_range[2];]])[ -#define YYPOPSTACK (yyvsp--, yyssp--]b4_location_if([, yylsp--])[) +#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)]b4_location_if([, yylsp -= (N)])[) YYSIZE_T yystacksize = YYINITDEPTH; @@ -830,9 +1019,9 @@ yyparse (YYPARSE_PARAM_ARG) YYSTYPE yyval; ]b4_location_if([ YYLTYPE yyloc;])[ - /* When reducing, the number of symbols on the RHS of the reduced - rule. */ - int yylen; + /* The number of symbols on the RHS of the reduced rule. + Keep to zero when no symbol should be popped. */ + int yylen = 0; YYDPRINTF ((stderr, "Starting parse\n")); @@ -848,40 +1037,59 @@ yyparse (YYPARSE_PARAM_ARG) yyssp = yyss; yyvsp = yyvs; -]b4_location_if([ yylsp = yyls;])[ - goto yysetstate; +]b4_location_if([[ yylsp = yyls; +#if YYLTYPE_IS_TRIVIAL + /* Initialize the default location before parsing starts. */ + yylloc.first_line = yylloc.last_line = 1; + yylloc.first_column = yylloc.last_column = 0; +#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_initial_action +m4_popdef([b4_dollar_dollar])dnl +m4_popdef([b4_at_dollar])dnl +/* Line __line__ of yacc.c. */ +b4_syncline([@oline@], [@ofile@]) +])dnl +m4_ifdef([b4_dollar_dollar_used],[[ yyvsp[0] = yylval; +]])dnl +m4_ifdef([b4_at_dollar_used], [[ yylsp[0] = yylloc; +]])dnl +[ goto yysetstate; /*------------------------------------------------------------. | yynewstate -- Push a new state, which is found in yystate. | `------------------------------------------------------------*/ yynewstate: /* In all cases, when you get here, the value and location stacks - have just been pushed. so pushing a state here evens the stacks. - */ + have just been pushed. So pushing a state here evens the stacks. */ yyssp++; yysetstate: *yyssp = yystate; - if (yyssp >= yyss + yystacksize - 1) + if (yyss + yystacksize - 1 <= yyssp) { /* Get the current used size of the three stacks, in elements. */ YYSIZE_T yysize = yyssp - yyss + 1; #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; + short int *yyss1 = yyss; ]b4_location_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),])[ @@ -892,21 +1100,21 @@ yyparse (YYPARSE_PARAM_ARG) } #else /* no yyoverflow */ # ifndef YYSTACK_RELOCATE - goto yyoverflowlab; + goto yyexhaustedlab; # else /* Extend the stack our own way. */ - if (yystacksize >= YYMAXDEPTH) - goto yyoverflowlab; + if (YYMAXDEPTH <= yystacksize) + goto yyexhaustedlab; yystacksize *= 2; - if (yystacksize > YYMAXDEPTH) + if (YYMAXDEPTH < yystacksize) yystacksize = YYMAXDEPTH; { - short *yyss1 = yyss; + short int *yyss1 = yyss; union yyalloc *yyptr = (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize)); if (! yyptr) - goto yyoverflowlab; + goto yyexhaustedlab; YYSTACK_RELOCATE (yyss); YYSTACK_RELOCATE (yyvs); ]b4_location_if([ YYSTACK_RELOCATE (yyls);])[ @@ -924,7 +1132,7 @@ yyparse (YYPARSE_PARAM_ARG) YYDPRINTF ((stderr, "Stack size increased to %lu\n", (unsigned long int) yystacksize)); - if (yyssp >= yyss + yystacksize - 1) + if (yyss + yystacksize - 1 <= yyssp) YYABORT; } @@ -937,90 +1145,66 @@ yyparse (YYPARSE_PARAM_ARG) `-----------*/ yybackup: -/* Do appropriate processing given the current state. */ -/* Read a lookahead token if we need one and don't already have one. */ -/* yyresume: */ - - /* First try to decide what to do without reference to lookahead token. */ + /* Do appropriate processing given the current state. Read a + look-ahead token if we need one and don't already have one. */ + /* First try to decide what to do without reference to look-ahead token. */ 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. */ + /* Not known => get a look-ahead token if don't already have one. */ + /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol. */ if (yychar == YYEMPTY) { YYDPRINTF ((stderr, "Reading a token: ")); 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); } - yyn += yychar1; - if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yychar1) + /* If the proper action on seeing token YYTOKEN is to reduce or to + detect an error, take that action. */ + yyn += yytoken; + if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) goto yydefault; - yyn = yytable[yyn]; - - /* yyn is what to do for this token type in this state. - Negative => reduce, -yyn is rule number. - Positive => shift, yyn is new state. - New state is final state => don't bother to shift, - just return success. - 0, or most negative number => error. */ - - if (yyn < 0) + if (yyn <= 0) { - if (yyn == YYTABLE_NINF) + if (yyn == 0 || yyn == YYTABLE_NINF) goto yyerrlab; yyn = -yyn; goto yyreduce; } - else if (yyn == 0) - goto yyerrlab; 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 look-ahead token. */ + YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc); + + /* Discard the shifted token unless it is eof. */ + if (yychar != YYEOF) + yychar = YYEMPTY; + yystate = yyn; + *++yyvsp = yylval; +]b4_location_if([ *++yylsp = yylloc;])[ goto yynewstate; @@ -1044,55 +1228,29 @@ yyreduce: /* If YYLEN is nonzero, implement the default value of the action: `$$ = $1'. - Otherwise, the following line sets YYVAL to the semantic value of - the lookahead token. This behavior is undocumented and Bison + Otherwise, the following line sets YYVAL to garbage. + This behavior is undocumented and Bison users should not rely upon it. Assigning to YYVAL unconditionally makes the parser a bit smaller, and it avoids a 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]; yyrhs[yyi] >= 0; yyi++) - YYFPRINTF (stderr, "%s ", yytname[yyrhs[yyi]]); - YYFPRINTF (stderr, " -> %s\n", yytname[yyr1[yyn]]); - } -#endif +[[ /* Default location. */ + YYLLOC_DEFAULT (yyloc, yylsp - yylen, yylen);]])[ + YY_REDUCE_PRINT (yyn); switch (yyn) - ]{ - b4_actions - } - -/* Line __line__ of __file__. */ -#line __oline__ "__ofile__" - -[ 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_actions +/* Line __line__ of yacc.c. */ +b4_syncline([@oline@], [@ofile@])[ + 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;])[ @@ -1120,48 +1278,94 @@ yyerrlab: if (!yyerrstatus) { ++yynerrs; - yyreport_parse_error (yystate, yychar, yylval]b4_location_if([, yylloc])[); +#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); + 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_location_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 + /* If just tried and failed to reuse look-ahead token after an error, discard it. */ - /* Return failure if at end of input. */ - if (yychar == YYEOF) + if (yychar <= YYEOF) { - /* Pop the error token. */ - YYPOPSTACK; - /* Pop the rest of the stack. */ - while (yyssp > yyss) - { - 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; + /* Return failure if at end of input. */ + if (yychar == YYEOF) + YYABORT; } - - YYDPRINTF ((stderr, "Discarding token %d (%s).\n", - yychar, yytname[yychar1])); - yydestruct (yychar1, yylval]b4_location_if([, yylloc])[); - yychar = YYEMPTY; + else + { + yydestruct ("Error: discarding", + yytoken, &yylval]b4_location_if([, &yylloc])[]b4_user_args[); + yychar = YYEMPTY; + } } - /* Else will try to reuse lookahead token after shifting the error + /* Else will try to reuse look-ahead 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_location_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 (;;) @@ -1182,35 +1386,27 @@ yyerrlab1: 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_location_if([[ yyerror_range[0] = *yylsp;]])[ + yydestruct ("Error: popping", + yystos[yystate], yyvsp]b4_location_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_location_if([[ + yyerror_range[1] = yylloc; + /* Using YYLLOC is tempting, but would change the location of + the look-ahead. YYLOC is available though. */ + YYLLOC_DEFAULT (yyloc, yyerror_range - 1, 2); + *++yylsp = yyloc;]])[ + + /* Shift the error token. */ + YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp); yystate = yyn; goto yynewstate; @@ -1231,19 +1427,36 @@ yyabortlab: goto yyreturn; #ifndef yyoverflow -/*----------------------------------------------. -| yyoverflowlab -- parser overflow comes here. | -`----------------------------------------------*/ -yyoverflowlab: - yyerror ("parser stack overflow"); +/*-------------------------------------------------. +| yyexhaustedlab -- memory exhaustion comes here. | +`-------------------------------------------------*/ +yyexhaustedlab: + yyerror (]b4_yyerror_args[YY_("memory exhausted")); yyresult = 2; /* Fall through. */ #endif yyreturn: + if (yychar != YYEOF && yychar != YYEMPTY) + yydestruct ("Cleanup: discarding lookahead", + yytoken, &yylval]b4_location_if([, &yylloc])[]b4_user_args[); + /* Do not reclaim the symbols of the rule which action triggered + this YYABORT or YYACCEPT. */ + YYPOPSTACK (yylen); + YY_STACK_PRINT (yyss, yyssp); + while (yyssp != yyss) + { + yydestruct ("Cleanup: popping", + yystos[*yyssp], yyvsp]b4_location_if([, yylsp])[]b4_user_args[); + YYPOPSTACK (1); + } #ifndef yyoverflow if (yyss != yyssa) YYSTACK_FREE (yyss); +#endif +#if YYERROR_VERBOSE + if (yymsg != yymsgbuf) + YYSTACK_FREE (yymsg); #endif return yyresult; ]} @@ -1251,42 +1464,48 @@ yyreturn: b4_epilogue m4_if(b4_defines_flag, 0, [], -[#output "b4_output_header_name" +[@output @output_header_name@ b4_copyright([Skeleton parser for Yacc-like parsing with Bison], - [1984, 1989, 1990, 2000, 2001, 2002]) + [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006]) -#ifndef b4_header_guard -# define b4_header_guard +/* 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) +b4_token_enums_defines(b4_tokens) -#ifndef YYSTYPE +#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED) 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 +[typedef union m4_bregexp(b4_stype, [^{], [YYSTYPE ]) +b4_stype +/* Line __line__ of yacc.c. */ +b4_syncline([@oline@], [@ofile@]) + YYSTYPE;], +[typedef int YYSTYPE;]) +# define yystype YYSTYPE /* obsolescent; will be withdrawn */ +# define YYSTYPE_IS_DECLARED 1 +# define YYSTYPE_IS_TRIVIAL 1 #endif b4_pure_if([], [extern YYSTYPE b4_prefix[]lval;]) b4_location_if( -[#ifndef YYLTYPE -typedef struct yyltype +[#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 */ ])