X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/bc82c5a5938c88f921dc2ce1f4edb06c4097e966..1b9c21fb18c6d82f9b7512bc0f2f9d980a32c398:/data/yacc.c diff --git a/data/yacc.c b/data/yacc.c index 5d9b8bd1..cde630e3 100644 --- a/data/yacc.c +++ b/data/yacc.c @@ -1,7 +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 + +# 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 @@ -16,10 +17,10 @@ m4_divert(-1) -*- C -*- # 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. ## @@ -35,10 +36,10 @@ 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])]) @@ -48,7 +49,7 @@ m4_define([b4_Pure_if], # --------------- # 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), ])]) @@ -81,7 +82,7 @@ m4_define([b4_int_type], m4_eval([0 <= $1]), [1], [unsigned int], - [int])]) + [int])]) ## ----------------- ## @@ -101,7 +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]))]) @@ -121,7 +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])@})]) +[(yylsp@{($2) - ($1)@})]) @@ -134,15 +135,15 @@ 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])[ + [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 @@ -163,7 +164,7 @@ 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[ @@ -181,12 +182,18 @@ b4_location_if([#define yylloc b4_prefix[]lloc])])[ # define YYERROR_VERBOSE ]b4_error_verbose[ #endif +/* 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], -[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 @@ -213,41 +220,111 @@ typedef struct YYLTYPE /* Line __line__ of yacc.c. */ b4_syncline([@oline@], [@ofile@])[ -#if ! defined (yyoverflow) || YYERROR_VERBOSE +#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 -# ifndef YYFREE -# define YYFREE free +#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 YYMALLOC -# define YYMALLOC malloc +# ifndef YY_ +# define YY_(msgid) msgid # endif +#endif + +/* Suppress unused-variable warnings by "using" E. */ +#ifndef lint +# 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. */ # ifdef YYSTACK_USE_ALLOCA # if YYSTACK_USE_ALLOCA -# define YYSTACK_ALLOC alloca -# endif -# else -# if defined (alloca) || defined (_ALLOCA_H) -# define YYSTACK_ALLOC alloca -# else # ifdef __GNUC__ # define YYSTACK_ALLOC __builtin_alloca +# elif defined (__BUILTIN_VA_ARG_INCR) +# include /* INFRINGES ON USER NAME SPACE */ +# elif defined (_AIX) +# define YYSTACK_ALLOC __alloca +# elif defined (_MSC_VER) +# include /* INFRINGES ON USER NAME SPACE */ +# define alloca _alloca +# else +# define YYSTACK_ALLOC alloca +# if ! defined (_ALLOCA_H) && ! defined (_STDLIB_H) && ]b4_c_modern[ +# include /* INFRINGES ON USER NAME SPACE */ +# ifndef _STDLIB_H +# define _STDLIB_H 1 +# endif +# endif # endif # endif # endif # ifdef YYSTACK_ALLOC - /* Pacify GCC's `empty if-body' warning. */ -# define YYSTACK_FREE(Ptr) do { /* empty */; } while (0) -# else -# if defined (__STDC__) || defined (__cplusplus) -# include /* INFRINGES ON USER NAME SPACE */ -# define YYSIZE_T size_t + /* Pacify GCC's `empty if-body' warning. */ +# define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0)) +# ifndef YYSTACK_ALLOC_MAXIMUM + /* The OS might guarantee only one guard page at the bottom of the stack, + and a page size can be as small as 4096 bytes. So we cannot safely + invoke alloca (N) if N exceeds 4096. Use a slightly smaller number + to allow for a few compiler-allocated temporary stack slots. */ +# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */ # endif +# else # define YYSTACK_ALLOC YYMALLOC # define YYSTACK_FREE YYFREE +# ifndef YYSTACK_ALLOC_MAXIMUM +# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM +# endif +# 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 # endif #endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */ @@ -289,11 +366,11 @@ union yyalloc # define YYCOPY(To, From, Count) \ do \ { \ - register YYSIZE_T yyi; \ + YYSIZE_T yyi; \ for (yyi = 0; yyi < (Count); yyi++) \ (To)[yyi] = (From)[yyi]; \ } \ - while (0) + while (YYID (0)) # endif # endif @@ -311,35 +388,35 @@ union yyalloc yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \ yyptr += yynewbytes / sizeof (*yyptr); \ } \ - while (0) + while (YYID (0)) #endif -#if defined (__STDC__) || defined (__cplusplus) +#if ]b4_c_modern[ 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. */ @@ -356,7 +433,7 @@ 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[ @@ -369,9 +446,9 @@ static const ]b4_int_type_for([b4_rline])[ yyrline[] = }; #endif -#if YYDEBUG || YYERROR_VERBOSE -/* YYTNME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. - First, the terminals, then, starting at YYNTOKENS, nonterminals. */ +#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE +/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. + First, the terminals, then, starting at YYNTOKENS, nonterminals. */ static const char *const yytname[] = { ]b4_tname[ @@ -407,7 +484,7 @@ 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[ @@ -449,22 +526,6 @@ static const ]b4_int_type_for([b4_stos])[ yystos[] = ]b4_stos[ }; -#if ! defined (YYSIZE_T) && defined (__SIZE_TYPE__) -# define YYSIZE_T __SIZE_TYPE__ -#endif -#if ! defined (YYSIZE_T) && defined (size_t) -# define YYSIZE_T size_t -#endif -#if ! defined (YYSIZE_T) -# if defined (__STDC__) || defined (__cplusplus) -# include /* INFRINGES ON USER NAME SPACE */ -# define YYSIZE_T size_t -# endif -#endif -#if ! defined (YYSIZE_T) -# define YYSIZE_T unsigned int -#endif - #define yyerrok (yyerrstatus = 0) #define yyclearin (yychar = YYEMPTY) #define YYEMPTY (-2) @@ -490,15 +551,15 @@ do \ yychar = (Token); \ yylval = (Value); \ yytoken = YYTRANSLATE (yychar); \ - YYPOPSTACK; \ + YYPOPSTACK (1); \ goto yybackup; \ } \ else \ - { \ - yyerror (]b4_yyerror_args["syntax error: cannot back up");\ + { \ + yyerror (]b4_yyerror_args[YY_("syntax error: cannot back up")); \ YYERROR; \ } \ -while (0) +while (YYID (0)) #define YYTERROR 1 @@ -513,21 +574,21 @@ 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; \ - (Current).last_line = YYRHSLOC(Rhs, N).last_line; \ - (Current).last_column = YYRHSLOC(Rhs, N).last_column; \ + (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; \ + YYRHSLOC (Rhs, 0).last_line; \ (Current).first_column = (Current).last_column = \ - YYRHSLOC(Rhs, 0).last_column; \ + YYRHSLOC (Rhs, 0).last_column; \ } \ - while (0) + while (YYID (0)) #endif @@ -567,18 +628,20 @@ 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 | @@ -590,7 +653,7 @@ do { \ [[short int *top], [top]])[ { YYFPRINTF (stderr, "Stack now"); - for (/* Nothing. */; bottom <= top; ++bottom) + for (; bottom <= top; ++bottom) YYFPRINTF (stderr, " %d", *bottom); YYFPRINTF (stderr, "\n"); } @@ -599,7 +662,7 @@ do { \ do { \ if (yydebug) \ yy_stack_print ((Bottom), (Top)); \ -} while (0) +} while (YYID (0)) /*------------------------------------------------. @@ -607,23 +670,33 @@ 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 int yylno = yyrline[yyrule]; - YYFPRINTF (stderr, "Reducing stack by rule %d (line %u), ", + unsigned long int yylno = yyrline[yyrule]; + YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n", 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]]); + /* 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. */ @@ -645,13 +718,9 @@ int yydebug; if the built-in stack extension method is used). Do not make this value too large; the results are undefined if - SIZE_MAX < YYSTACK_BYTES (YYMAXDEPTH) + YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH) evaluated with infinite-precision integer arithmetic. */ -#if defined (YYMAXDEPTH) && YYMAXDEPTH == 0 -# undef YYMAXDEPTH -#endif - #ifndef YYMAXDEPTH # define YYMAXDEPTH ]b4_stack_depth_max[ #endif @@ -665,20 +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 @@ -689,17 +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; @@ -709,30 +765,178 @@ yystpcpy (yydest, yysrc) # endif # endif -#endif /* !YYERROR_VERBOSE */ +# ifndef yytnamerr +/* Copy to YYRES the contents of YYSTR after stripping away unnecessary + quotes and backslashes, so that it's suitable for yyerror. The + heuristic is that double-quoting is unnecessary unless the string + contains an apostrophe, a comma, or backslash (other than + backslash-backslash). YYSTR is taken from yytname. If YYRES is + null, do not copy; instead, return the length of what the result + would have been. */ +static YYSIZE_T +yytnamerr (char *yyres, const char *yystr) +{ + if (*yystr == '"') + { + 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: ; + } + + if (! yyres) + return yystrlen (yystr); + return yystpcpy (yyres, yystr) - yyres; +} +# endif + +/* 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 @@ -760,24 +964,25 @@ b4_pure_if([], `----------*/ #ifdef YYPARSE_PARAM -# if defined (__STDC__) || defined (__cplusplus) -int yyparse (void *YYPARSE_PARAM) -# else -int yyparse (YYPARSE_PARAM) - void *YYPARSE_PARAM; -# endif +b4_c_function_def([yyparse], [int], [[void *YYPARSE_PARAM], [YYPARSE_PARAM]]) #else /* ! YYPARSE_PARAM */ b4_c_function_def([yyparse], [int], b4_parse_param) #endif {[ ]b4_pure_if([b4_declare_parser_variables])[ - register int yystate; - register int yyn; + int yystate; + int yyn; int yyresult; /* Number of tokens to shift before error messages enabled. */ 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, @@ -790,22 +995,22 @@ b4_c_function_def([yyparse], [int], b4_parse_param) /* The state stack. */ short int yyssa[YYINITDEPTH]; short int *yyss = yyssa; - register short int *yyssp; + 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; - /* 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; @@ -814,9 +1019,9 @@ 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")); @@ -840,18 +1045,19 @@ b4_c_function_def([yyparse], [int], b4_parse_param) #endif ]]) m4_ifdef([b4_initial_action], [ -m4_pushdef([b4_at_dollar], [yylloc])dnl -m4_pushdef([b4_dollar_dollar], [yylval])dnl - /* User initialization code. */ - 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 -[ - yyvsp[0] = yylval; -]b4_location_if([[ yylsp[0] = yylloc; -]]) +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; /*------------------------------------------------------------. @@ -859,8 +1065,7 @@ b4_syncline([@oline@], [@ofile@])])dnl `------------------------------------------------------------*/ 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: @@ -873,7 +1078,7 @@ b4_syncline([@oline@], [@ofile@])])dnl #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; @@ -884,7 +1089,7 @@ b4_syncline([@oline@], [@ofile@])])dnl 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),])[ @@ -895,11 +1100,11 @@ b4_syncline([@oline@], [@ofile@])])dnl } #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; @@ -909,7 +1114,7 @@ b4_syncline([@oline@], [@ofile@])])dnl 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);])[ @@ -940,12 +1145,10 @@ b4_syncline([@oline@], [@ofile@])])dnl `-----------*/ 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; @@ -987,22 +1190,21 @@ 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; @@ -1034,21 +1236,20 @@ yyreduce: yyval = yyvsp[1-yylen]; ]b4_location_if( -[[ /* Default location. */ +[[ /* 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@]) - -[ yyvsp -= yylen; - yyssp -= yylen; -]b4_location_if([ yylsp -= yylen;])[ +b4_syncline([@oline@], [@ofile@])[ + default: break; + } + YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc); + YYPOPSTACK (yylen); + yylen = 0; YY_STACK_PRINT (yyss, yyssp); *++yyvsp = yyval; @@ -1077,66 +1278,41 @@ yyerrlab: if (!yyerrstatus) { ++yynerrs; -#if YYERROR_VERBOSE - yyn = yypact[yystate]; - - if (YYPACT_NINF < yyn && yyn < YYLAST) - { - YYSIZE_T yysize = 0; - int yytype = YYTRANSLATE (yychar); - const char* yyprefix; - char *yymsg; - int yyx; - - /* Start YYX at -YYN if negative to avoid negative indexes in - YYCHECK. */ - int yyxbegin = yyn < 0 ? -yyn : 0; - - /* Stay within bounds of both yycheck and yytname. */ - int yychecklim = YYLAST - yyn; - int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS; - int yycount = 0; - - yyprefix = ", expecting "; - for (yyx = yyxbegin; yyx < yyxend; ++yyx) - if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) +#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 { - yysize += yystrlen (yyprefix) + yystrlen (yytname [yyx]); - yycount += 1; - if (yycount == 5) - { - yysize = 0; - break; - } + yymsg = yymsgbuf; + yymsg_alloc = sizeof yymsgbuf; } - yysize += (sizeof ("syntax error, unexpected ") - + yystrlen (yytname[yytype])); - yymsg = (char *) YYSTACK_ALLOC (yysize); - if (yymsg != 0) - { - char *yyp = yystpcpy (yymsg, "syntax error, unexpected "); - yyp = yystpcpy (yyp, yytname[yytype]); - - if (yycount < 5) - { - yyprefix = ", expecting "; - for (yyx = yyxbegin; yyx < yyxend; ++yyx) - if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR) - { - yyp = yystpcpy (yyp, yyprefix); - yyp = yystpcpy (yyp, yytname[yyx]); - yyprefix = " or "; - } - } - yyerror (]b4_yyerror_args[yymsg); - YYSTACK_FREE (yymsg); - } - else - yyerror (]b4_yyerror_args["syntax error; also virtual memory exhausted"); - } - else -#endif /* YYERROR_VERBOSE */ - yyerror (]b4_yyerror_args["syntax error"); + } + + if (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 } ]b4_location_if([[ yyerror_range[0] = yylloc;]])[ @@ -1148,22 +1324,14 @@ yyerrlab: if (yychar <= YYEOF) { - /* If at end of input, pop the error token, - then the rest of the stack, then return failure. */ + /* Return failure if at end of input. */ if (yychar == YYEOF) - for (;;) - { -]b4_location_if([[ yyerror_range[0] = *yylsp;]])[ - YYPOPSTACK; - if (yyssp == yyss) - YYABORT; - yydestruct ("Error: popping", - yystos[*yyssp], yyvsp]b4_location_if([, yylsp])[); - } + 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; } } @@ -1178,17 +1346,18 @@ yyerrlab: `---------------------------------------------------*/ yyerrorlab: -#ifdef __GNUC__ - /* Pacify GCC when the user code never invokes YYERROR and the label - yyerrorlab therefore never appears in user code. */ - if (0) + /* Pacify compilers like GCC when the user code never invokes + YYERROR and the label yyerrorlab therefore never appears in user + code. */ + if (/*CONSTCOND*/ 0) goto yyerrorlab; -#endif ]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; @@ -1218,8 +1387,9 @@ 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); } @@ -1231,11 +1401,11 @@ 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. */ + 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; @@ -1253,26 +1423,40 @@ yyacceptlab: | yyabortlab -- YYABORT comes here. | `-----------------------------------*/ yyabortlab: - yydestruct ("Error: discarding lookahead", - yytoken, &yylval]b4_location_if([, &yylloc])[); - yychar = YYEMPTY; yyresult = 1; goto yyreturn; #ifndef yyoverflow -/*----------------------------------------------. -| yyoverflowlab -- parser overflow comes here. | -`----------------------------------------------*/ -yyoverflowlab: - yyerror (]b4_yyerror_args["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; ]} @@ -1282,21 +1466,22 @@ 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]) + [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) 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