X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/141f57937b5fe3f5c49d635fffbd4bddbfa03d69..455671735e6f4e9712c2f5ac1bc153b07b33e67b:/data/yacc.c?ds=inline diff --git a/data/yacc.c b/data/yacc.c index f4b1b1b9..6f847177 100644 --- a/data/yacc.c +++ b/data/yacc.c @@ -1,8 +1,8 @@ -m4_divert(-1) -*- C -*- +m4_divert(-1) -*- C -*- # Yacc compatible skeleton for Bison -# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005 +# Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006 # Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify @@ -20,7 +20,7 @@ m4_divert(-1) -*- C -*- # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA # 02110-1301 USA - +m4_include(b4_pkgdatadir/[c.m4]) ## ---------------- ## ## Default values. ## @@ -36,20 +36,20 @@ m4_define_default([b4_stack_depth_init], [200]) ## ------------------------ ## -# b4_pure_if(IF-TRUE, IF-FALSE) -# ----------------------------- +# b4_yacc_pure_if(IF-TRUE, IF-FALSE) +# ---------------------------------- # Expand IF-TRUE, if %pure-parser and %parse-param, IF-FALSE otherwise. -m4_define([b4_Pure_if], +m4_define([b4_yacc_pure_if], [b4_pure_if([m4_ifset([b4_parse_param], - [$1], [$2])], - [$2])]) + [$1], [$2])], + [$2])]) # b4_yyerror_args # --------------- # Arguments passed to yyerror: user args plus yylloc. m4_define([b4_yyerror_args], -[b4_Pure_if([b4_location_if([&yylloc, ])])dnl +[b4_yacc_pure_if([b4_location_if([&yylloc, ])])dnl m4_ifset([b4_parse_param], [b4_c_args(b4_parse_param), ])]) @@ -71,18 +71,19 @@ m4_ifdef([b4_lex_param], b4_lex_param))) # b4_int_type(MIN, MAX) # --------------------- # Return the smallest int type able to handle numbers ranging from -# MIN to MAX (included). We overwrite the version from c.m4 which relies -# on "signed char" which is not portable to old K&R compilers. +# MIN to MAX (included). Overwrite the version from c.m4, which +# uses only C89 types, so that the user can override the shorter +# types, and so that pre-C89 compilers are handled correctly. m4_define([b4_int_type], -[m4_if(b4_ints_in($@, [0], [255]), [1], [unsigned char], - b4_ints_in($@, [-128], [127]), [1], [yysigned_char], +[m4_if(b4_ints_in($@, [0], [255]), [1], [yytype_uint8], + b4_ints_in($@, [-128], [127]), [1], [yytype_int8], - b4_ints_in($@, [0], [65535]), [1], [unsigned short int], - b4_ints_in($@, [-32768], [32767]), [1], [short int], + b4_ints_in($@, [0], [65535]), [1], [yytype_uint16], + b4_ints_in($@, [-32768], [32767]), [1], [yytype_int16], m4_eval([0 <= $1]), [1], [unsigned int], - [int])]) + [int])]) ## ----------------- ## @@ -102,7 +103,7 @@ 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]))]) @@ -122,7 +123,7 @@ m4_define([b4_lhs_location], # Expansion of @NUM, where the current rule has RULE-LENGTH symbols # on RHS. m4_define([b4_rhs_location], -[(yylsp@{m4_eval([$2 - $1])@})]) +[(yylsp@{($2) - ($1)@})]) @@ -135,15 +136,15 @@ m4_changecom() m4_divert(0)dnl @output @output_parser_name@ b4_copyright([Skeleton parser for Yacc-like parsing with Bison], - [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005])[ + [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006])[ /* As a special exception, when this file is copied by Bison into a Bison output file, you may use that output file without restriction. This special exception was added by the Free Software Foundation in version 1.24 of Bison. */ -/* 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 @@ -164,7 +165,7 @@ m4_if(b4_prefix[], [yy], [], #define yynerrs b4_prefix[]nerrs b4_location_if([#define yylloc b4_prefix[]lloc])])[ -]b4_token_defines(b4_tokens)[ +]b4_token_enums_defines(b4_tokens)[ /* Copy the first part of user declarations. */ ]b4_pre_prologue[ @@ -187,19 +188,20 @@ b4_location_if([#define yylloc b4_prefix[]lloc])])[ # define YYTOKEN_TABLE ]b4_token_table[ #endif -#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED) +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED ]m4_ifdef([b4_stype], -[b4_syncline([b4_stype_line], [b4_filename]) -typedef union m4_bregexp(b4_stype, [^{], [YYSTYPE ])b4_stype YYSTYPE; +[typedef union[]m4_bregexp(b4_stype, [^{], [ YYSTYPE]) +b4_stype /* Line __line__ of yacc.c. */ -b4_syncline([@oline@], [@ofile@])], +b4_syncline([@oline@], [@ofile@]) + YYSTYPE;], [typedef int YYSTYPE;])[ # define yystype YYSTYPE /* obsolescent; will be withdrawn */ # define YYSTYPE_IS_DECLARED 1 # define YYSTYPE_IS_TRIVIAL 1 #endif -]b4_location_if([#if ! defined (YYLTYPE) && ! defined (YYLTYPE_IS_DECLARED) +]b4_location_if([#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED typedef struct YYLTYPE { int first_line; @@ -219,20 +221,51 @@ typedef struct YYLTYPE /* Line __line__ of yacc.c. */ b4_syncline([@oline@], [@ofile@])[ -#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__) -# define YYSIZE_T __SIZE_TYPE__ +#ifdef short +# undef short #endif -#if ! defined (YYSIZE_T) && defined (size_t) -# define YYSIZE_T size_t + +#ifdef YYTYPE_UINT8 +typedef YYTYPE_UINT8 yytype_uint8; +#else +typedef unsigned char yytype_uint8; #endif -#if ! defined (YYSIZE_T) && (defined (__STDC__) || defined (__cplusplus)) -# include /* INFRINGES ON USER NAME SPACE */ -# define YYSIZE_T size_t + +#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 (YYSIZE_T) -# define YYSIZE_T unsigned int + +#ifdef YYTYPE_UINT16 +typedef YYTYPE_UINT16 yytype_uint16; +#else +typedef unsigned short int yytype_uint16; #endif +#ifdef YYTYPE_INT16 +typedef YYTYPE_INT16 yytype_int16; +#else +typedef short int yytype_int16; +#endif + +#ifndef YYSIZE_T +# ifdef __SIZE_TYPE__ +# define YYSIZE_T __SIZE_TYPE__ +# elif defined size_t +# define YYSIZE_T size_t +# elif ! defined YYSIZE_T && ]b4_c_modern[ +# include /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T size_t +# else +# define YYSIZE_T unsigned int +# endif +#endif + +#define YYSIZE_MAXIMUM ((YYSIZE_T) -1) + #ifndef YY_ # if YYENABLE_NLS # if ENABLE_NLS @@ -245,7 +278,24 @@ b4_syncline([@oline@], [@ofile@])[ # endif #endif -#if ! defined (yyoverflow) || YYERROR_VERBOSE +/* Suppress unused-variable warnings by "using" E. */ +#if ! defined lint || defined __GNUC__ +# define YYUSE(e) ((void) (e)) +#else +# define YYUSE(e) /* empty */ +#endif + +/* Identity function, used to suppress warnings about constant conditions. */ +#ifndef lint +# define YYID(n) (n) +#else +]b4_c_function_def([YYID], [static int], [[int i], [i]])[ +{ + return i; +} +#endif + +#if ! defined yyoverflow || YYERROR_VERBOSE /* The parser invokes alloca or malloc; define the necessary symbols. */ @@ -253,65 +303,74 @@ b4_syncline([@oline@], [@ofile@])[ # 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 # define YYSTACK_ALLOC alloca -# if defined (__STDC__) || defined (__cplusplus) +# if ! defined _ALLOCA_H && ! defined _STDLIB_H && ]b4_c_modern[ # include /* INFRINGES ON USER NAME SPACE */ -# define YYINCLUDED_STDLIB_H +# 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 2005 */ +# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */ # endif # else # define YYSTACK_ALLOC YYMALLOC # define YYSTACK_FREE YYFREE # ifndef YYSTACK_ALLOC_MAXIMUM -# define YYSTACK_ALLOC_MAXIMUM ((YYSIZE_T) -1) +# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM # endif -# ifdef __cplusplus -extern "C" { +# if (defined __cplusplus && ! defined _STDLIB_H \ + && ! ((defined YYMALLOC || defined malloc) \ + && (defined YYFREE || defined free))) +# include /* INFRINGES ON USER NAME SPACE */ +# ifndef _STDLIB_H +# define _STDLIB_H 1 +# endif # endif # ifndef YYMALLOC # define YYMALLOC malloc -# if (! defined (malloc) && ! defined (YYINCLUDED_STDLIB_H) \ - && (defined (__STDC__) || defined (__cplusplus))) +# if ! defined malloc && ! defined _STDLIB_H && ]b4_c_modern[ void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */ # endif # endif # ifndef YYFREE # define YYFREE free -# if (! defined (free) && ! defined (YYINCLUDED_STDLIB_H) \ - && (defined (__STDC__) || defined (__cplusplus))) +# if ! defined free && ! defined _STDLIB_H && ]b4_c_modern[ void free (void *); /* INFRINGES ON USER NAME SPACE */ # endif # endif -# ifdef __cplusplus -} -# endif # endif -#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */ +#endif /* ! defined yyoverflow || YYERROR_VERBOSE */ -#if (! defined (yyoverflow) \ - && (! defined (__cplusplus) \ - || (]b4_location_if([[defined (YYLTYPE_IS_TRIVIAL) && YYLTYPE_IS_TRIVIAL \ - && ]])[defined (YYSTYPE_IS_TRIVIAL) && YYSTYPE_IS_TRIVIAL))) +#if (! defined yyoverflow \ + && (! defined __cplusplus \ + || (]b4_location_if([[defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \ + && ]])[defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL))) /* A type that is properly aligned for any stack member. */ union yyalloc { - short int yyss; + yytype_int16 yyss; YYSTYPE yyvs; ]b4_location_if([ YYLTYPE yyls; ])dnl @@ -324,16 +383,16 @@ union yyalloc N elements. */ ]b4_location_if( [# define YYSTACK_BYTES(N) \ - ((N) * (sizeof (short int) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \ + ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \ + 2 * YYSTACK_GAP_MAXIMUM)], [# define YYSTACK_BYTES(N) \ - ((N) * (sizeof (short int) + sizeof (YYSTYPE)) \ + ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \ + YYSTACK_GAP_MAXIMUM)])[ /* Copy COUNT objects from FROM to TO. The source and destination do not overlap. */ # ifndef YYCOPY -# if defined (__GNUC__) && 1 < __GNUC__ +# if defined __GNUC__ && 1 < __GNUC__ # define YYCOPY(To, From, Count) \ __builtin_memcpy (To, From, (Count) * sizeof (*(From))) # else @@ -344,7 +403,7 @@ union yyalloc for (yyi = 0; yyi < (Count); yyi++) \ (To)[yyi] = (From)[yyi]; \ } \ - while (0) + while (YYID (0)) # endif # endif @@ -362,35 +421,29 @@ union yyalloc yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \ yyptr += yynewbytes / sizeof (*yyptr); \ } \ - while (0) - -#endif + while (YYID (0)) -#if defined (__STDC__) || defined (__cplusplus) - typedef signed char yysigned_char; -#else - typedef short int yysigned_char; #endif -/* YYFINAL -- State number of the termination state. */ +/* YYFINAL -- State number of the termination state. */ #define YYFINAL ]b4_final_state_number[ /* YYLAST -- Last index in YYTABLE. */ #define YYLAST ]b4_last[ -/* YYNTOKENS -- Number of terminals. */ +/* YYNTOKENS -- Number of terminals. */ #define YYNTOKENS ]b4_tokens_number[ -/* YYNNTS -- Number of nonterminals. */ +/* YYNNTS -- Number of nonterminals. */ #define YYNNTS ]b4_nterms_number[ -/* YYNRULES -- Number of rules. */ +/* YYNRULES -- Number of rules. */ #define YYNRULES ]b4_rules_number[ -/* YYNRULES -- Number of states. */ +/* YYNRULES -- Number of states. */ #define YYNSTATES ]b4_states_number[ /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ #define YYUNDEFTOK ]b4_undef_token_number[ #define YYMAXUTOK ]b4_user_token_number_max[ -#define YYTRANSLATE(YYX) \ +#define YYTRANSLATE(YYX) \ ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK) /* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */ @@ -407,7 +460,7 @@ static const ]b4_int_type_for([b4_prhs])[ yyprhs[] = ]b4_prhs[ }; -/* YYRHS -- A `-1'-separated list of the rules' RHS. */ +/* YYRHS -- A `-1'-separated list of the rules' RHS. */ static const ]b4_int_type_for([b4_rhs])[ yyrhs[] = { ]b4_rhs[ @@ -422,7 +475,7 @@ static const ]b4_int_type_for([b4_rline])[ yyrline[] = #if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. - First, the terminals, then, starting at YYNTOKENS, nonterminals. */ + First, the terminals, then, starting at YYNTOKENS, nonterminals. */ static const char *const yytname[] = { ]b4_tname[ @@ -458,7 +511,7 @@ static const ]b4_int_type_for([b4_defact])[ yydefact[] = ]b4_defact[ }; -/* YYDEFGOTO[NTERM-NUM]. */ +/* YYDEFGOTO[NTERM-NUM]. */ static const ]b4_int_type_for([b4_defgoto])[ yydefgoto[] = { ]b4_defgoto[ @@ -525,15 +578,15 @@ do \ yychar = (Token); \ yylval = (Value); \ yytoken = YYTRANSLATE (yychar); \ - YYPOPSTACK; \ + YYPOPSTACK (1); \ goto yybackup; \ } \ else \ - { \ + { \ yyerror (]b4_yyerror_args[YY_("syntax error: cannot back up")); \ YYERROR; \ } \ -while (0) +while (YYID (0)) #define YYTERROR 1 @@ -548,7 +601,7 @@ while (0) #ifndef YYLLOC_DEFAULT # define YYLLOC_DEFAULT(Current, Rhs, N) \ do \ - if (N) \ + if (YYID (N)) \ { \ (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \ (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \ @@ -562,7 +615,7 @@ while (0) (Current).first_column = (Current).last_column = \ YYRHSLOC (Rhs, 0).last_column; \ } \ - while (0) + while (YYID (0)) #endif @@ -574,8 +627,8 @@ while (0) # if YYLTYPE_IS_TRIVIAL # define YY_LOCATION_PRINT(File, Loc) \ fprintf (File, "%d.%d-%d.%d", \ - (Loc).first_line, (Loc).first_column, \ - (Loc).last_line, (Loc).last_column) + (Loc).first_line, (Loc).first_column, \ + (Loc).last_line, (Loc).last_column) # else # define YY_LOCATION_PRINT(File, Loc) ((void) 0) # endif @@ -602,18 +655,20 @@ while (0) do { \ if (yydebug) \ YYFPRINTF Args; \ -} while (0) +} while (YYID (0)) -# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \ -do { \ - if (yydebug) \ - { \ - YYFPRINTF (stderr, "%s ", Title); \ - yysymprint (stderr, \ - Type, Value]b4_location_if([, Location])[); \ - YYFPRINTF (stderr, "\n"); \ - } \ -} while (0) +# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \ +do { \ + if (yydebug) \ + { \ + YYFPRINTF (stderr, "%s ", Title); \ + yy_symbol_print (stderr, \ + Type, Value]b4_location_if([, Location])[]b4_user_args[); \ + YYFPRINTF (stderr, "\n"); \ + } \ +} while (YYID (0)) + +]b4_yy_symbol_print_generate([b4_c_function_def])[ /*------------------------------------------------------------------. | yy_stack_print -- Print the state stack from its BOTTOM up to its | @@ -621,11 +676,11 @@ do { \ `------------------------------------------------------------------*/ ]b4_c_function_def([yy_stack_print], [static void], - [[short int *bottom], [bottom]], - [[short int *top], [top]])[ + [[yytype_int16 *bottom], [bottom]], + [[yytype_int16 *top], [top]])[ { YYFPRINTF (stderr, "Stack now"); - for (/* Nothing. */; bottom <= top; ++bottom) + for (; bottom <= top; ++bottom) YYFPRINTF (stderr, " %d", *bottom); YYFPRINTF (stderr, "\n"); } @@ -634,7 +689,7 @@ do { \ do { \ if (yydebug) \ yy_stack_print ((Bottom), (Top)); \ -} while (0) +} while (YYID (0)) /*------------------------------------------------. @@ -642,23 +697,33 @@ do { \ `------------------------------------------------*/ ]b4_c_function_def([yy_reduce_print], [static void], - [[int yyrule], [yyrule]])[ + [[YYSTYPE *yyvsp], [yyvsp]], + b4_location_if([[[YYLTYPE *yylsp], [yylsp]],]) + [[int yyrule], [yyrule]]m4_ifset([b4_parse_param], [,]) + b4_parse_param)[ { + int yynrhs = yyr2[yyrule]; int yyi; unsigned long int yylno = yyrline[yyrule]; - YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu), ", - yyrule - 1, yylno); - /* Print the symbols being reduced, and their result. */ - for (yyi = yyprhs[yyrule]; 0 <= yyrhs[yyi]; yyi++) - YYFPRINTF (stderr, "%s ", yytname[yyrhs[yyi]]); - YYFPRINTF (stderr, "-> %s\n", yytname[yyr1[yyrule]]); + YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n", + yyrule - 1, yylno); + /* The symbols being reduced. */ + for (yyi = 0; yyi < yynrhs; yyi++) + { + fprintf (stderr, " $%d = ", yyi + 1); + yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi], + &]b4_rhs_value(yynrhs, yyi + 1)[ + ]b4_location_if([, &]b4_rhs_location(yynrhs, yyi + 1))[]dnl + b4_user_args[); + fprintf (stderr, "\n"); + } } # define YY_REDUCE_PRINT(Rule) \ do { \ if (yydebug) \ - yy_reduce_print (Rule); \ -} while (0) + yy_reduce_print (yyvsp, ]b4_location_if([yylsp, ])[Rule]b4_user_args[); \ +} while (YYID (0)) /* Nonzero means print parse trace. It is left uninitialized so that multiple parsers can coexist. */ @@ -692,42 +757,29 @@ int yydebug; #if YYERROR_VERBOSE # ifndef yystrlen -# if defined (__GLIBC__) && defined (_STRING_H) +# if defined __GLIBC__ && defined _STRING_H # define yystrlen strlen # else /* Return the length of YYSTR. */ -static YYSIZE_T -# if defined (__STDC__) || defined (__cplusplus) -yystrlen (const char *yystr) -# else -yystrlen (yystr) - const char *yystr; -# endif +]b4_c_function_def([yystrlen], [static YYSIZE_T], + [[const char *yystr], [yystr]])[ { - 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]])[ { char *yyd = yydest; const char *yys = yysrc; @@ -788,30 +840,130 @@ yytnamerr (char *yyres, const char *yystr) } # endif -#endif /* 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)) + return 0; + else + { + 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; + 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 */ -#if YYDEBUG -]b4_yysymprint_generate([b4_c_function_def])[ -#endif /* ! YYDEBUG */ -]b4_yydestruct_generate([b4_c_function_def]) +]b4_yydestruct_generate([b4_c_function_def])[ /* 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) +]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 @@ -831,7 +983,7 @@ YYLTYPE yylloc;]) m4_divert_pop([KILL])dnl# ====================== End of M4 code. b4_pure_if([], - [b4_declare_parser_variables]) + [b4_declare_parser_variables]) /*----------. @@ -839,12 +991,7 @@ b4_pure_if([], `----------*/ #ifdef YYPARSE_PARAM -# if defined (__STDC__) || defined (__cplusplus) -int yyparse (void *YYPARSE_PARAM) -# else -int yyparse (YYPARSE_PARAM) - void *YYPARSE_PARAM; -# endif +b4_c_function_def([yyparse], [int], [[void *YYPARSE_PARAM], [YYPARSE_PARAM]]) #else /* ! YYPARSE_PARAM */ b4_c_function_def([yyparse], [int], b4_parse_param) #endif @@ -857,6 +1004,12 @@ b4_c_function_def([yyparse], [int], b4_parse_param) int yyerrstatus; /* 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, @@ -867,9 +1020,9 @@ b4_c_function_def([yyparse], [int], b4_parse_param) to reallocate them elsewhere. */ /* The state stack. */ - short int yyssa[YYINITDEPTH]; - short int *yyss = yyssa; - short int *yyssp; + yytype_int16 yyssa[YYINITDEPTH]; + yytype_int16 *yyss = yyssa; + yytype_int16 *yyssp; /* The semantic value stack. */ YYSTYPE yyvsa[YYINITDEPTH]; @@ -881,10 +1034,10 @@ b4_c_function_def([yyparse], [int], b4_parse_param) YYLTYPE yylsa[YYINITDEPTH]; YYLTYPE *yyls = yylsa; YYLTYPE *yylsp; - /* The locations where the error started and ended. */ + /* The locations where the error started and ended. */ YYLTYPE yyerror_range[2];]])[ -#define YYPOPSTACK (yyvsp--, yyssp--]b4_location_if([, yylsp--])[) +#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)]b4_location_if([, yylsp -= (N)])[) YYSIZE_T yystacksize = YYINITDEPTH; @@ -893,9 +1046,9 @@ b4_c_function_def([yyparse], [int], b4_parse_param) 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")); @@ -921,7 +1074,7 @@ b4_c_function_def([yyparse], [int], b4_parse_param) m4_ifdef([b4_initial_action], [ m4_pushdef([b4_at_dollar], [m4_define([b4_at_dollar_used])yylloc])dnl m4_pushdef([b4_dollar_dollar], [m4_define([b4_dollar_dollar_used])yylval])dnl - /* User initialization code. */ + /* User initialization code. */ b4_initial_action m4_popdef([b4_dollar_dollar])dnl m4_popdef([b4_at_dollar])dnl @@ -939,8 +1092,7 @@ m4_ifdef([b4_at_dollar_used], [[ yylsp[0] = yylloc; `------------------------------------------------------------*/ yynewstate: /* In all cases, when you get here, the value and location stacks - 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: @@ -953,11 +1105,11 @@ m4_ifdef([b4_at_dollar_used], [[ yylsp[0] = yylloc; #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 int *yyss1 = yyss; + yytype_int16 *yyss1 = yyss; ]b4_location_if([ YYLTYPE *yyls1 = yyls;])[ /* Each stack pointer address is followed by the size of the @@ -985,7 +1137,7 @@ m4_ifdef([b4_at_dollar_used], [[ yylsp[0] = yylloc; yystacksize = YYMAXDEPTH; { - short int *yyss1 = yyss; + yytype_int16 *yyss1 = yyss; union yyalloc *yyptr = (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize)); if (! yyptr) @@ -1020,12 +1172,10 @@ m4_ifdef([b4_at_dollar_used], [[ yylsp[0] = yylloc; `-----------*/ yybackup: -/* Do appropriate processing given the current state. */ -/* Read a look-ahead token if we need one and don't already have one. */ -/* yyresume: */ + /* Do appropriate processing given the current state. Read a + look-ahead token if we need one and don't already have one. */ /* First try to decide what to do without reference to look-ahead token. */ - yyn = yypact[yystate]; if (yyn == YYPACT_NINF) goto yydefault; @@ -1067,22 +1217,21 @@ yybackup: if (yyn == YYFINAL) YYACCEPT; + /* Count tokens shifted since error; after three, turn off error + status. */ + if (yyerrstatus) + yyerrstatus--; + /* Shift the look-ahead token. */ YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc); - /* Discard the token being shifted unless it is eof. */ + /* Discard the shifted token unless it is eof. */ if (yychar != YYEOF) yychar = YYEMPTY; + yystate = yyn; *++yyvsp = yylval; ]b4_location_if([ *++yylsp = yylloc;])[ - - /* Count tokens shifted since error; after three, turn off error - status. */ - if (yyerrstatus) - yyerrstatus--; - - yystate = yyn; goto yynewstate; @@ -1114,22 +1263,20 @@ yyreduce: yyval = yyvsp[1-yylen]; ]b4_location_if( -[[ /* Default location. */ - YYLLOC_DEFAULT (yyloc, yylsp - yylen, yylen);]])[ +[[ /* Default location. */ + YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);]])[ YY_REDUCE_PRINT (yyn); switch (yyn) - ]{ - b4_actions + { + ]b4_actions +/* Line __line__ of yacc.c. */ +b4_syncline([@oline@], [@ofile@])[ default: break; } + YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc); -/* Line __line__ of yacc.c. */ -b4_syncline([@oline@], [@ofile@]) - -[ yyvsp -= yylen; - yyssp -= yylen; -]b4_location_if([ yylsp -= yylen;])[ - + YYPOPSTACK (yylen); + yylen = 0; YY_STACK_PRINT (yyss, yyssp); *++yyvsp = yyval; @@ -1158,110 +1305,41 @@ yyerrlab: if (!yyerrstatus) { ++yynerrs; -#if YYERROR_VERBOSE - yyn = yypact[yystate]; - - if (YYPACT_NINF < yyn && yyn < YYLAST) - { - int yytype = YYTRANSLATE (yychar); - YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]); - YYSIZE_T yysize = yysize0; - YYSIZE_T yysize1; - int yysize_overflow = 0; - char *yymsg = 0; -# define 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; - 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 ! 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 { - 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; + yymsg = yymsgbuf; + yymsg_alloc = sizeof yymsgbuf; } + } - yyf = YY_(yyformat); - yysize1 = yysize + yystrlen (yyf); - yysize_overflow |= yysize1 < yysize; - yysize = yysize1; - - if (!yysize_overflow && yysize <= YYSTACK_ALLOC_MAXIMUM) - yymsg = (char *) YYSTACK_ALLOC (yysize); - if (yymsg) - { - /* Avoid sprintf, as that infringes on the user's name space. - Don't have undefined behavior even if the translation - produced a string with the wrong number of "%s"s. */ - char *yyp = yymsg; - int yyi = 0; - while ((*yyp = *yyf)) - { - if (*yyp == '%' && yyf[1] == 's' && yyi < yycount) - { - yyp += yytnamerr (yyp, yyarg[yyi++]); - yyf += 2; - } - else - { - yyp++; - yyf++; - } - } - yyerror (]b4_yyerror_args[yymsg); - YYSTACK_FREE (yymsg); - } - else - { - yyerror (]b4_yyerror_args[YY_("syntax error")); + 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; - } - } - else -#endif /* YYERROR_VERBOSE */ - yyerror (]b4_yyerror_args[YY_("syntax error")); + } + } +#endif } ]b4_location_if([[ yyerror_range[0] = yylloc;]])[ @@ -1272,14 +1350,15 @@ yyerrlab: error, discard it. */ if (yychar <= YYEOF) - { + { /* Return failure if at end of input. */ if (yychar == YYEOF) YYABORT; - } + } else { - yydestruct ("Error: discarding", yytoken, &yylval]b4_location_if([, &yylloc])[); + yydestruct ("Error: discarding", + yytoken, &yylval]b4_location_if([, &yylloc])[]b4_user_args[); yychar = YYEMPTY; } } @@ -1297,13 +1376,15 @@ yyerrorlab: /* Pacify compilers like GCC when the user code never invokes YYERROR and the label yyerrorlab therefore never appears in user code. */ - if (0) + if (/*CONSTCOND*/ 0) goto yyerrorlab; ]b4_location_if([[ yyerror_range[0] = yylsp[1-yylen]; - yylsp -= yylen; - ]])[yyvsp -= yylen; - yyssp -= yylen; +]])[ /* Do not reclaim the symbols of the rule which action triggered + this YYERROR. */ + YYPOPSTACK (yylen); + yylen = 0; + YY_STACK_PRINT (yyss, yyssp); yystate = *yyssp; goto yyerrlab1; @@ -1333,8 +1414,9 @@ yyerrlab1: YYABORT; ]b4_location_if([[ yyerror_range[0] = *yylsp;]])[ - yydestruct ("Error: popping", yystos[yystate], yyvsp]b4_location_if([, yylsp])[); - YYPOPSTACK; + yydestruct ("Error: popping", + yystos[yystate], yyvsp]b4_location_if([, yylsp])[]b4_user_args[); + YYPOPSTACK (1); yystate = *yyssp; YY_STACK_PRINT (yyss, yyssp); } @@ -1346,11 +1428,11 @@ yyerrlab1: ]b4_location_if([[ yyerror_range[1] = yylloc; /* Using YYLLOC is tempting, but would change the location of - the look-ahead. YYLOC is available though. */ - YYLLOC_DEFAULT (yyloc, yyerror_range - 1, 2); + the look-ahead. YYLOC is available though. */ + YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2); *++yylsp = yyloc;]])[ - /* Shift the error token. */ + /* Shift the error token. */ YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp); yystate = yyn; @@ -1383,17 +1465,25 @@ yyexhaustedlab: yyreturn: if (yychar != YYEOF && yychar != YYEMPTY) - yydestruct ("Error: discarding lookahead", - yytoken, &yylval]b4_location_if([, &yylloc])[); + 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 ("Error: popping", - yystos[*yyssp], yyvsp]b4_location_if([, yylsp])[); - YYPOPSTACK; + 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; ]} @@ -1403,21 +1493,22 @@ b4_epilogue m4_if(b4_defines_flag, 0, [], [@output @output_header_name@ b4_copyright([Skeleton parser for Yacc-like parsing with Bison], - [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005]) + [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006]) /* As a special exception, when this file is copied by Bison into a Bison output file, you may use that output file without restriction. This special exception was added by the Free Software Foundation in version 1.24 of Bison. */ -b4_token_defines(b4_tokens) +b4_token_enums_defines(b4_tokens) -#if ! defined (YYSTYPE) && ! defined (YYSTYPE_IS_DECLARED) +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED m4_ifdef([b4_stype], -[b4_syncline([b4_stype_line], [b4_filename]) -typedef union m4_bregexp(b4_stype, [^{], [YYSTYPE ])b4_stype YYSTYPE; +[typedef union[]m4_bregexp(b4_stype, [^{], [ YYSTYPE]) +b4_stype /* Line __line__ of yacc.c. */ -b4_syncline([@oline@], [@ofile@])], +b4_syncline([@oline@], [@ofile@]) + YYSTYPE;], [typedef int YYSTYPE;]) # define yystype YYSTYPE /* obsolescent; will be withdrawn */ # define YYSTYPE_IS_DECLARED 1 @@ -1428,7 +1519,7 @@ b4_pure_if([], [extern YYSTYPE b4_prefix[]lval;]) b4_location_if( -[#if ! defined (YYLTYPE) && ! defined (YYLTYPE_IS_DECLARED) +[#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED typedef struct YYLTYPE { int first_line;