X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/17da6427fe433be974371d1b4f56061c0903776d..8adfa272f72683102c45cc6eaba00aaa5db2497a:/src/bison.simple diff --git a/src/bison.simple b/src/bison.simple index 1217108f..593eadf3 100644 --- a/src/bison.simple +++ b/src/bison.simple @@ -31,86 +31,41 @@ It was written by Richard Stallman by simplifying the hairy parser used when %semantic_parser is specified. */ -#include +/* Identify Bison output. */ +#define YYBISON 1 -/* If name_prefix is specify substitute the variables and functions - names. */ -#define yyparse %%prefix##parse -#define yylex %%prefix##lex -#define yyerror %%prefix##error -#define yylval %%prefix##lval -#define yychar %%prefix##char -#define yydebug %%prefix##debug -#define yynerrs %%prefix##nerrs +/* Pure parsers. */ +#define YYPURE %%pure -/* Copy the user declarations. */ -%%prologue +/* Using locations. */ +#define YYLSP_NEEDED %%locations-flag -#ifndef __cplusplus -# ifndef __STDC__ -# define const -# endif +/* Enabling traces. */ +#ifndef YYDEBUG +# define YYDEBUG %%debug #endif -#ifndef YYSTACK_USE_ALLOCA -# ifdef alloca -# define YYSTACK_USE_ALLOCA 1 -# else /* alloca not defined */ -# ifdef __GNUC__ -# define YYSTACK_USE_ALLOCA 1 -# define alloca __builtin_alloca -# else /* not GNU C. */ -# if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) || defined (__sparc) || defined (__sgi) || (defined (__sun) && defined (__i386)) -# define YYSTACK_USE_ALLOCA 1 -# include -# else /* not sparc */ - /* We think this test detects Watcom and Microsoft C. */ - /* This used to test MSDOS, but that is a bad idea since that - symbol is in the user namespace. */ -# if (defined (_MSDOS) || defined (_MSDOS_)) && !defined (__TURBOC__) -# if 0 - /* No need for malloc.h, which pollutes the namespace; instead, - just don't use alloca. */ -# include -# endif -# else /* not MSDOS, or __TURBOC__ */ -# if defined(_AIX) - /* I don't know what this was needed for, but it pollutes the - namespace. So I turned it off. rms, 2 May 1997. */ - /* #include */ - #pragma alloca -# define YYSTACK_USE_ALLOCA 1 -# else /* not MSDOS, or __TURBOC__, or _AIX */ -# if 0 - /* haible@ilog.fr says this works for HPUX 9.05 and up, and on - HPUX 10. Eventually we can turn this on. */ -# ifdef __hpux -# define YYSTACK_USE_ALLOCA 1 -# define alloca __builtin_alloca -# endif /* __hpux */ -# endif -# endif /* not _AIX */ -# endif /* not MSDOS, or __TURBOC__ */ -# endif /* not sparc */ -# endif /* not GNU C */ -# endif /* alloca not defined */ -#endif /* YYSTACK_USE_ALLOCA not defined */ - -#if YYSTACK_USE_ALLOCA -# define YYSTACK_ALLOC alloca +/* Enabling verbose error messages. */ +#ifdef YYERROR_VERBOSE +# undef YYERROR_VERBOSE +# define YYERROR_VERBOSE 1 #else -# define YYSTACK_ALLOC malloc +# define YYERROR_VERBOSE %%error-verbose #endif -#define YYBISON 1 /* Identify Bison output. */ -#define YYPURE %%pure /* Identify pure parsers. */ - -#ifndef YYDEBUG -# define YYDEBUG %%debug -#endif +/* If name_prefix is specify substitute the variables and functions + names. */ +#define yyparse %%prefix##parse +#define yylex %%prefix##lex +#define yyerror %%prefix##error +#define yylval %%prefix##lval +#define yychar %%prefix##char +#define yydebug %%prefix##debug +#define yynerrs %%prefix##nerrs #ifndef YYSTYPE -# define YYSTYPE %%stype +typedef %%stype yystype; +# define YYSTYPE yystype #endif #ifndef YYLTYPE @@ -124,39 +79,150 @@ typedef struct yyltype # define YYLTYPE %%ltype #endif -#ifndef YYERROR_VERBOSE -# define YYERROR_VERBOSE %%verbose -#endif +/* Copy the user declarations. */ +%%prologue -/* Tokens. */ -%%tokendef +/* Line %%skeleton-line of %%skeleton. */ +#line %%line "%%parser-file-name" -#define YYFINAL %%final -#define YYFLAG %%flag -#define YYNTBASE %%ntbase -#define YYLAST %%last +#include + +/* All symbols defined below should begin with yy or YY, to avoid + infringing on user name space. This should be done even for local + variables, as they might otherwise be expanded by user macros. + There are some unavoidable exceptions within include files to + define necessary library symbols; they are noted "INFRINGES ON + USER NAME SPACE" below. */ -#define YYNTOKENS %%ntokens -#define YYNNTS %%nnts -#define YYNRULES %%nrules -#define YYNSTATES %%nstates -#define YYMAXUTOK %%maxtok +#if ! defined (yyoverflow) || YYERROR_VERBOSE -/* YYTRANSLATE(YYLEX) -- Bison token number corresponding to YYLEX. */ +/* The parser invokes alloca or malloc; define the necessary symbols. */ + +# if YYSTACK_USE_ALLOCA +# define YYSTACK_ALLOC alloca +# define YYSIZE_T size_t +# else +# ifndef YYSTACK_USE_ALLOCA +# if defined (alloca) || defined (_ALLOCA_H) +# define YYSTACK_ALLOC alloca +# define YYSIZE_T size_t +# else +# if defined (__GNUC__) || defined (_AIX) || defined (__hpux) +# define YYSTACK_ALLOC __builtin_alloca +# endif +# ifndef __GNUC__ +# ifdef _AIX + # pragma alloca +# endif +# if defined (__sgi) || defined (__sparc__) || defined (__sparc) || defined (__sun) +# include /* INFRINGES ON USER NAME SPACE */ +# define YYSTACK_ALLOC alloca +# define YYSIZE_T size_t +# endif +# endif +# endif +# endif +# endif + +# ifdef YYSTACK_ALLOC + /* Pacify GCC's `empty if-body' warning. */ +# define YYSTACK_FREE(Ptr) do { /* empty */; } while (0) +# else +# ifdef __cplusplus +# include /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T std::size_t +# define YYSTACK_ALLOC std::malloc +# define YYSTACK_FREE std::free +# else +# ifdef __STDC__ +# include /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T size_t +# endif +# define YYSTACK_ALLOC malloc +# define YYSTACK_FREE free +# endif +# endif + +/* A type that is properly aligned for any stack member. */ +union yyalloc +{ + short yyss; + YYSTYPE yyvs; +# if YYLSP_NEEDED + YYLTYPE yyls; +# endif +}; + +/* The size of the maximum gap between one aligned stack and the next. */ +# define YYSTACK_GAP_MAX (sizeof (union yyalloc) - 1) + +/* The size of an array large to enough to hold all stacks, each with + N elements. */ +# if YYLSP_NEEDED +# define YYSTACK_BYTES(N) \ + ((N) * (sizeof (short) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \ + + 2 * YYSTACK_GAP_MAX) +# else +# define YYSTACK_BYTES(N) \ + ((N) * (sizeof (short) + sizeof (YYSTYPE)) \ + + YYSTACK_GAP_MAX) +# endif + +/* Relocate the TYPE STACK from its old location to the new one. The + local variables YYSIZE and YYSTACKSIZE give the old and new number of + elements in the stack, and YYPTR gives the new location of the + stack. Advance YYPTR to a properly aligned location for the next + stack. */ +# define YYSTACK_RELOCATE(Type, Stack) \ + do \ + { \ + YYSIZE_T yynewbytes; \ + yymemcpy ((char *) yyptr, (char *) (Stack), \ + yysize * (YYSIZE_T) sizeof (Type)); \ + Stack = &yyptr->Stack; \ + yynewbytes = yystacksize * sizeof (Type) + YYSTACK_GAP_MAX; \ + yyptr += yynewbytes / sizeof (*yyptr); \ + } \ + while (0) + +#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */ + +/* Tokens. */ +%%tokendef + +/* YYFINAL -- State number of the termination state. */ +#define YYFINAL %%final +#define YYFLAG %%flag +#define YYLAST %%last + +/* YYNTOKENS -- Number of terminals. */ +#define YYNTOKENS %%ntokens +/* YYNNTS -- Number of nonterminals. */ +#define YYNNTS %%nnts +/* YYNRULES -- Number of rules. */ +#define YYNRULES %%nrules +/* YYNRULES -- Number of states. */ +#define YYNSTATES %%nstates +#define YYMAXUTOK %%maxtok + +/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ #define YYTRANSLATE(x) ((unsigned)(x) <= %%maxtok ? yytranslate[x] : %%nsym) -/* YYTRANSLATE[YYLEX] -- Bison token number corresponding to YYLEX. */ +/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */ static const char yytranslate[] = { %%translate }; #if YYDEBUG +/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in + YYRHS. */ static const short yyprhs[] = { %%prhs }; +/* YYRHS -- A `0'-separated list of the rules' RHS. */ static const short yyrhs[] = { %%rhs @@ -169,8 +235,9 @@ static const short yyrline[] = }; #endif -#if YYDEBUG || YYERROR_VERBOSE -/* YYTNME[TOKEN_NUM] -- String name of the token TOKEN_NUM. */ +#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[] = { %%tname @@ -203,21 +270,28 @@ static const short yydefact[] = %%defact }; +/* YYPGOTO[NTERM-NUM]. */ static const short yydefgoto[] = { %%defgoto }; +/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing + STATE-NUM. */ static const short yypact[] = { %%pact }; +/* YYPGOTO[NTERM-NUM]. */ static const short yypgoto[] = { %%pgoto }; +/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If + positive, shift that token. If negative, reduce the rule which + number is the opposite. If zero, do what YYDEFACT says. */ static const short yytable[] = { %%table @@ -228,6 +302,28 @@ static const short yycheck[] = %%check }; + +#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) +# ifdef __cplusplus +# include /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T std::size_t +# else +# ifdef __STDC__ +# include /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T size_t +# endif +# endif +#endif +#if ! defined (YYSIZE_T) +# define YYSIZE_T unsigned int +#endif + #define yyerrok (yyerrstatus = 0) #define yyclearin (yychar = YYEMPTY) #define YYEMPTY -2 @@ -250,14 +346,14 @@ do \ if (yychar == YYEMPTY && yylen == 1) \ { \ yychar = (Token); \ - yylval = (Value); \ + yylval = (Value); \ yychar1 = YYTRANSLATE (yychar); \ YYPOPSTACK; \ goto yybackup; \ } \ else \ { \ - yyerror ("syntax error: cannot back up"); \ + yyerror ("syntax error: cannot back up"); \ YYERROR; \ } \ while (0) @@ -300,10 +396,23 @@ while (0) /* Enable debugging if requested. */ #if YYDEBUG + +# ifndef YYFPRINTF +# ifdef __cplusplus +# include /* INFRINGES ON USER NAME SPACE */ +# define YYFPRINTF std::fprintf +# define YYSTDERR std::stderr +# else +# include /* INFRINGES ON USER NAME SPACE */ +# define YYFPRINTF fprintf +# define YYSTDERR stderr +# endif +# endif + # define YYDPRINTF(Args) \ do { \ if (yydebug) \ - fprintf Args; \ + YYFPRINTF Args; \ } while (0) /* Nonzero means print parse trace. [The following comment makes no sense to me. Could someone clarify it? --akim] Since this is @@ -320,7 +429,12 @@ int yydebug; #endif /* YYMAXDEPTH -- maximum size the stacks can grow to (effective only - if the built-in stack extension method is used). */ + 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) + evaluated with infinite-precision integer arithmetic. */ + #if YYMAXDEPTH == 0 # undef YYMAXDEPTH #endif @@ -331,39 +445,87 @@ int yydebug; -/* Define __yy_memcpy. Note that the size argument - should be passed with type unsigned int, because that is what the non-GCC - definitions require. With GCC, __builtin_memcpy takes an arg - of type size_t, but it can handle unsigned int. */ - -#if __GNUC__ > 1 /* GNU C and GNU C++ define this. */ -# define __yy_memcpy(To, From, Count) __builtin_memcpy (To, From, Count) -#else /* not GNU C or C++ */ +#if ! defined (yyoverflow) && ! defined (yymemcpy) +# if __GNUC__ > 1 /* GNU C and GNU C++ define this. */ +# define yymemcpy __builtin_memcpy +# else /* not GNU C or C++ */ /* This is the most reliable way to avoid incompatibilities in available built-in functions on various systems. */ static void -# ifndef __cplusplus -__yy_memcpy (to, from, count) - char *to; - const char *from; - unsigned int count; -# else /* __cplusplus */ -__yy_memcpy (char *to, const char *from, unsigned int count) -# endif +# if defined (__STDC__) || defined (__cplusplus) +yymemcpy (char *yyto, const char *yyfrom, YYSIZE_T yycount) +# else +yymemcpy (yyto, yyfrom, yycount) + char *yyto; + const char *yyfrom; + YYSIZE_T yycount; +# endif { - register const char *f = from; - register char *t = to; - register int i = count; + register const char *yyf = yyfrom; + register char *yyt = yyto; + register YYSIZE_T yyi = yycount; - while (i-- > 0) - *t++ = *f++; + while (yyi-- != 0) + *yyt++ = *yyf++; } +# endif #endif - +#if YYERROR_VERBOSE + +# ifndef yystrlen +# 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 +{ + register const char *yys = yystr; + + while (*yys++ != '\0') + continue; + + return yys - yystr - 1; +} +# endif +# endif + +# ifndef yystpcpy +# 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 +{ + register char *yyd = yydest; + register const char *yys = yysrc; + + while ((*yyd++ = *yys++) != '\0') + continue; + + return yyd - 1; +} +# endif +# endif -#line %%line "%%filename" +#endif /* !YYERROR_VERBOSE */ + + /* The user can define YYPARSE_PARAM as the name of an argument to be passed into yyparse. The argument should have type void *. @@ -396,7 +558,7 @@ int yyparse (void); /* YY_DECL_VARIABLES -- depending whether we use a pure parser, variables are global, or local to YYPARSE. */ -#define _YY_DECL_VARIABLES \ +#define YY_DECL_NON_LSP_VARIABLES \ /* The lookahead symbol. */ \ int yychar; \ \ @@ -408,13 +570,13 @@ int yynerrs; #if YYLSP_NEEDED # define YY_DECL_VARIABLES \ -_YY_DECL_VARIABLES \ +YY_DECL_NON_LSP_VARIABLES \ \ /* Location data for the lookahead symbol. */ \ YYLTYPE yylloc; #else # define YY_DECL_VARIABLES \ -_YY_DECL_VARIABLES +YY_DECL_NON_LSP_VARIABLES #endif /* If nonreentrant, generate the variables here. */ @@ -434,6 +596,7 @@ yyparse (YYPARSE_PARAM_ARG) register int yystate; register int yyn; + int yyresult; /* Number of tokens to shift before error messages enabled. */ int yyerrstatus; /* Lookahead token as an internal (translated) token number. */ @@ -441,7 +604,7 @@ yyparse (YYPARSE_PARAM_ARG) /* Three stacks and their tools: `yyss': related to states, - `yysv': related to semantic values, + `yyvs': related to semantic values, `yyls': related to locations. Refer to the stacks thru separate pointers, to allow yyoverflow @@ -470,21 +633,20 @@ yyparse (YYPARSE_PARAM_ARG) # define YYPOPSTACK (yyvsp--, yyssp--) #endif - int yystacksize = YYINITDEPTH; - int yyfree_stacks = 0; + YYSIZE_T yystacksize = YYINITDEPTH; /* The variables used to return semantic value and location from the action routines. */ YYSTYPE yyval; -# if YYLSP_NEEDED +#if YYLSP_NEEDED YYLTYPE yyloc; -# endif +#endif /* When reducing, the number of symbols on the RHS of the reduced rule. */ int yylen; - YYDPRINTF ((stderr, "Starting parse\n")); + YYDPRINTF ((YYSTDERR, "Starting parse\n")); yystate = 0; yyerrstatus = 0; @@ -506,98 +668,88 @@ yyparse (YYPARSE_PARAM_ARG) /*------------------------------------------------------------. | yynewstate -- Push a new state, which is found in yystate. | `------------------------------------------------------------*/ -yynewstate: + 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. */ yyssp++; -yysetstate: + yysetstate: *yyssp = yystate; if (yyssp >= yyss + yystacksize - 1) { - /* 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; -#if YYLSP_NEEDED - YYLTYPE *yyls1 = yyls; -#endif - /* Get the current used size of the three stacks, in elements. */ - int size = yyssp - yyss + 1; + YYSIZE_T yysize = yyssp - yyss + 1; #ifdef yyoverflow - /* Each stack pointer address is followed by the size of the - data in use in that stack, in bytes. */ + { + /* 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; + + /* Each stack pointer address is followed by the size of the + data in use in that stack, in bytes. */ # if YYLSP_NEEDED - /* 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", - &yyss1, size * sizeof (*yyssp), - &yyvs1, size * sizeof (*yyvsp), - &yyls1, size * sizeof (*yylsp), - &yystacksize); + YYLTYPE *yyls1 = yyls; + /* 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", + &yyss1, yysize * sizeof (*yyssp), + &yyvs1, yysize * sizeof (*yyvsp), + &yyls1, yysize * sizeof (*yylsp), + &yystacksize); + yyls = yyls1; # else - yyoverflow ("parser stack overflow", - &yyss1, size * sizeof (*yyssp), - &yyvs1, size * sizeof (*yyvsp), - &yystacksize); -# endif - - yyss = yyss1; yyvs = yyvs1; -# if YYLSP_NEEDED - yyls = yyls1; + yyoverflow ("parser stack overflow", + &yyss1, yysize * sizeof (*yyssp), + &yyvs1, yysize * sizeof (*yyvsp), + &yystacksize); # endif + yyss = yyss1; + yyvs = yyvs1; + } #else /* no yyoverflow */ /* Extend the stack our own way. */ if (yystacksize >= YYMAXDEPTH) - { - yyerror ("parser stack overflow"); - if (yyfree_stacks) - { - free (yyss); - free (yyvs); -# if YYLSP_NEEDED - free (yyls); -# endif - } - return 2; - } + goto yyoverflowlab; yystacksize *= 2; if (yystacksize > YYMAXDEPTH) yystacksize = YYMAXDEPTH; -# if !YYSTACK_USE_ALLOCA - yyfree_stacks = 1; -# endif - yyss = (short *) YYSTACK_ALLOC (yystacksize * sizeof (*yyssp)); - __yy_memcpy ((char *)yyss, (char *)yyss1, - size * (unsigned int) sizeof (*yyssp)); - yyvs = (YYSTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yyvsp)); - __yy_memcpy ((char *)yyvs, (char *)yyvs1, - size * (unsigned int) sizeof (*yyvsp)); + + { + short *yyss1 = yyss; + union yyalloc *yyptr = + (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize)); + if (! yyptr) + goto yyoverflowlab; + YYSTACK_RELOCATE (short, yyss); + YYSTACK_RELOCATE (YYSTYPE, yyvs); # if YYLSP_NEEDED - yyls = (YYLTYPE *) YYSTACK_ALLOC (yystacksize * sizeof (*yylsp)); - __yy_memcpy ((char *)yyls, (char *)yyls1, - size * (unsigned int) sizeof (*yylsp)); + YYSTACK_RELOCATE (YYLTYPE, yyls); # endif +# undef YYSTACK_RELOCATE + if (yyss1 != yyssa) + YYSTACK_FREE (yyss1); + } #endif /* no yyoverflow */ - yyssp = yyss + size - 1; - yyvsp = yyvs + size - 1; + yyssp = yyss + yysize - 1; + yyvsp = yyvs + yysize - 1; #if YYLSP_NEEDED - yylsp = yyls + size - 1; + yylsp = yyls + yysize - 1; #endif - YYDPRINTF ((stderr, "Stack size increased to %d\n", yystacksize)); + YYDPRINTF ((YYSTDERR, "Stack size increased to %lu\n", + (unsigned long int) yystacksize)); if (yyssp >= yyss + yystacksize - 1) YYABORT; } - YYDPRINTF ((stderr, "Entering state %d\n", yystate)); + YYDPRINTF ((YYSTDERR, "Entering state %d\n", yystate)); goto yybackup; @@ -623,7 +775,7 @@ yybackup: if (yychar == YYEMPTY) { - YYDPRINTF ((stderr, "Reading a token: ")); + YYDPRINTF ((YYSTDERR, "Reading a token: ")); yychar = YYLEX; } @@ -634,7 +786,7 @@ yybackup: yychar1 = 0; yychar = YYEOF; /* Don't call YYLEX any more. */ - YYDPRINTF ((stderr, "Now at end of input.\n")); + YYDPRINTF ((YYSTDERR, "Now at end of input.\n")); } else { @@ -645,13 +797,14 @@ yybackup: which are defined only if `YYDEBUG' is set. */ if (yydebug) { - fprintf (stderr, "Next token is %d (%s", yychar, yytname[yychar1]); + YYFPRINTF (YYSTDERR, "Next token is %d (%s", + yychar, yytname[yychar1]); /* Give the individual parser a way to print the precise meaning of a token, for further debugging info. */ # ifdef YYPRINT - YYPRINT (stderr, yychar, yylval); + YYPRINT (YYSTDERR, yychar, yylval); # endif - fprintf (stderr, ")\n"); + YYFPRINTF (YYSTDERR, ")\n"); } #endif } @@ -683,7 +836,8 @@ yybackup: YYACCEPT; /* Shift the lookahead token. */ - YYDPRINTF ((stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1])); + YYDPRINTF ((YYSTDERR, "Shifting token %d (%s), ", + yychar, yytname[yychar1])); /* Discard the token being shifted unless it is eof. */ if (yychar != YYEOF) @@ -742,22 +896,24 @@ yyreduce: are defined only if `YYDEBUG' is set. */ if (yydebug) { - int i; + int yyi; - fprintf (stderr, "Reducing via rule %d (line %d), ", - yyn, yyrline[yyn]); + YYFPRINTF (YYSTDERR, "Reducing via rule %d (line %d), ", + yyn, yyrline[yyn]); /* Print the symbols being reduced, and their result. */ - for (i = yyprhs[yyn]; yyrhs[i] > 0; i++) - fprintf (stderr, "%s ", yytname[yyrhs[i]]); - fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]); + for (yyi = yyprhs[yyn]; yyrhs[yyi] > 0; yyi++) + YYFPRINTF (YYSTDERR, "%s ", yytname[yyrhs[yyi]]); + YYFPRINTF (YYSTDERR, " -> %s\n", yytname[yyr1[yyn]]); } #endif switch (yyn) { - %%action /* The action file replaces this line. */ +%%actions } -#line %%line "%%filename" + +/* Line %%skeleton-line of %%skeleton. */ +#line %%line "%%parser-file-name" yyvsp -= yylen; yyssp -= yylen; @@ -768,11 +924,11 @@ yyreduce: #if YYDEBUG if (yydebug) { - short *ssp1 = yyss - 1; - fprintf (stderr, "state stack now"); - while (ssp1 != yyssp) - fprintf (stderr, " %d", *++ssp1); - fprintf (stderr, "\n"); + short *yyssp1 = yyss - 1; + YYFPRINTF (YYSTDERR, "state stack now"); + while (yyssp1 != yyssp) + YYFPRINTF (YYSTDERR, " %d", *++yyssp1); + YYFPRINTF (YYSTDERR, "\n"); } #endif @@ -787,11 +943,11 @@ yyreduce: yyn = yyr1[yyn]; - yystate = yypgoto[yyn - YYNTBASE] + *yyssp; + yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp) yystate = yytable[yystate]; else - yystate = yydefgoto[yyn - YYNTBASE]; + yystate = yydefgoto[yyn - YYNTOKENS]; goto yynewstate; @@ -810,43 +966,44 @@ yyerrlab: if (yyn > YYFLAG && yyn < YYLAST) { - int size = 0; - char *msg; - int x, count; - - count = 0; - /* Start X at -yyn if nec to avoid negative indexes in yycheck. */ - for (x = (yyn < 0 ? -yyn : 0); - x < (int) (sizeof (yytname) / sizeof (char *)); x++) - if (yycheck[x + yyn] == x) - size += strlen (yytname[x]) + 15, count++; - size += strlen ("parse error, unexpected `") + 1; - size += strlen (yytname[YYTRANSLATE (yychar)]); - msg = (char *) malloc (size); - if (msg != 0) + YYSIZE_T yysize = 0; + char *yymsg; + int yyx, yycount; + + yycount = 0; + /* Start YYX at -YYN if negative to avoid negative indexes in + YYCHECK. */ + for (yyx = yyn < 0 ? -yyn : 0; + yyx < (int) (sizeof (yytname) / sizeof (char *)); yyx++) + if (yycheck[yyx + yyn] == yyx) + yysize += yystrlen (yytname[yyx]) + 15, yycount++; + yysize += yystrlen ("parse error, unexpected ") + 1; + yysize += yystrlen (yytname[YYTRANSLATE (yychar)]); + yymsg = (char *) YYSTACK_ALLOC (yysize); + if (yymsg != 0) { - strcpy (msg, "parse error, unexpected `"); - strcat (msg, yytname[YYTRANSLATE (yychar)]); - strcat (msg, "'"); + char *yyp = yystpcpy (yymsg, "parse error, unexpected "); + yyp = yystpcpy (yyp, yytname[YYTRANSLATE (yychar)]); - if (count < 5) + if (yycount < 5) { - count = 0; - for (x = (yyn < 0 ? -yyn : 0); - x < (int) (sizeof (yytname) / sizeof (char *)); x++) - if (yycheck[x + yyn] == x) + yycount = 0; + for (yyx = yyn < 0 ? -yyn : 0; + yyx < (int) (sizeof (yytname) / sizeof (char *)); + yyx++) + if (yycheck[yyx + yyn] == yyx) { - strcat (msg, count == 0 ? ", expecting `" : " or `"); - strcat (msg, yytname[x]); - strcat (msg, "'"); - count++; + const char *yyq = ! yycount ? ", expecting " : " or "; + yyp = yystpcpy (yyp, yyq); + yyp = yystpcpy (yyp, yytname[yyx]); + yycount++; } } - yyerror (msg); - free (msg); - } - else - yyerror ("parse error; also virtual memory exceeded"); + yyerror (yymsg); + YYSTACK_FREE (yymsg); + } + else + yyerror ("parse error; also virtual memory exhausted"); } else #endif /* YYERROR_VERBOSE */ @@ -867,7 +1024,7 @@ yyerrlab1: /* Return failure if at end of input. */ if (yychar == YYEOF) YYABORT; - YYDPRINTF ((stderr, "Discarding token %d (%s).\n", + YYDPRINTF ((YYSTDERR, "Discarding token %d (%s).\n", yychar, yytname[yychar1])); yychar = YYEMPTY; } @@ -912,11 +1069,11 @@ yyerrpop: #if YYDEBUG if (yydebug) { - short *ssp1 = yyss - 1; - fprintf (stderr, "Error: state stack now"); - while (ssp1 != yyssp) - fprintf (stderr, " %d", *++ssp1); - fprintf (stderr, "\n"); + short *yyssp1 = yyss - 1; + YYFPRINTF (YYSTDERR, "Error: state stack now"); + while (yyssp1 != yyssp) + YYFPRINTF (YYSTDERR, " %d", *++yyssp1); + YYFPRINTF (YYSTDERR, "\n"); } #endif @@ -946,7 +1103,7 @@ yyerrhandle: if (yyn == YYFINAL) YYACCEPT; - YYDPRINTF ((stderr, "Shifting error token, ")); + YYDPRINTF ((YYSTDERR, "Shifting error token, ")); *++yyvsp = yylval; #if YYLSP_NEEDED @@ -961,31 +1118,30 @@ yyerrhandle: | yyacceptlab -- YYACCEPT comes here. | `-------------------------------------*/ yyacceptlab: - if (yyfree_stacks) - { - free (yyss); - free (yyvs); -#if YYLSP_NEEDED - free (yyls); -#endif - } - return 0; - + yyresult = 0; + goto yyreturn; /*-----------------------------------. | yyabortlab -- YYABORT comes here. | `-----------------------------------*/ yyabortlab: - if (yyfree_stacks) - { - free (yyss); - free (yyvs); -#if YYLSP_NEEDED - free (yyls); + yyresult = 1; + goto yyreturn; + +/*---------------------------------------------. +| yyoverflowab -- parser overflow comes here. | +`---------------------------------------------*/ +yyoverflowlab: + yyerror ("parser stack overflow"); + yyresult = 2; + /* Fall through. */ + +yyreturn: +#ifndef yyoverflow + if (yyss != yyssa) + YYSTACK_FREE (yyss); #endif - } - return 1; + return yyresult; } %%epilogue -