X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/63c2d5de0fa3237edad53913dca35abda6a36f2d..7093d0f541b397fb279c21c50e21d58985a4fded:/src/bison.simple diff --git a/src/bison.simple b/src/bison.simple index 74040d49..cc349bef 100644 --- a/src/bison.simple +++ b/src/bison.simple @@ -31,76 +31,37 @@ It was written by Richard Stallman by simplifying the hairy parser used when %semantic_parser is specified. */ -#include - -/* Copy the user declarations. */ -%%prologue - -#ifndef __cplusplus -# ifndef __STDC__ -# define const -# endif -#endif +/* Identify Bison output. */ +#define YYBISON 1 -#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 -#else -# define YYSTACK_ALLOC malloc -#endif +/* Pure parsers. */ +#define YYPURE %%pure -#define YYBISON 1 /* Identify Bison output. */ -#define YYPURE %%pure /* Identify pure parsers. */ +/* Using locations. */ +#define YYLSP_NEEDED %%locations-flag +/* Enabling traces. */ #ifndef YYDEBUG # define YYDEBUG %%debug #endif +/* Enabling verbose error messages. */ +#undef YYERROR_VERBOSE +#define YYERROR_VERBOSE %%error-verbose + +/* 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 @@ -114,11 +75,115 @@ typedef struct yyltype # define YYLTYPE %%ltype #endif -#ifndef YYERROR_VERBOSE -# define YYERROR_VERBOSE %%verbose +/* Copy the user declarations. */ +#line %%input-line "%%filename" +%%prologue + +#line %%line "%%skeleton" + +#include + +#ifndef __cplusplus +# ifndef __STDC__ +# define const +# endif #endif -/* Tokens. */ +/* 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 C library symbols; they are noted "INFRINGES ON + USER NAME SPACE" below. */ + +#if ! defined (yyoverflow) || YYERROR_VERBOSE + +/* 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 +# define YYSTACK_ALLOC malloc +# define YYSTACK_FREE(Ptr) free (Ptr) +# if defined (__STDC__) || defined (__cplusplus) +# include /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T size_t +# endif +# endif + +/* A type that is properly aligned for any stack member. */ +union yyalloc +{ + short yys; + YYSTYPE yyv; +# if YYLSP_NEEDED + YYLTYPE yyl; +# 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 (yyptr, (char *) (Stack), \ + yysize * (YYSIZE_T) sizeof (Type)); \ + (Stack) = (Type *) yyptr; \ + yynewbytes = yystacksize * sizeof (Type) + YYSTACK_GAP_MAX; \ + yynewbytes -= yynewbytes % sizeof (union yyalloc); \ + yyptr += yynewbytes; \ + } \ + while (0) + +#endif /* ! defined (yyoverflow) || YYERROR_VERBOSE */ + +/* Tokens. */ %%tokendef #define YYFINAL %%final @@ -160,8 +225,8 @@ static const short yyrline[] = #endif #if YYDEBUG || YYERROR_VERBOSE -/* YYTNAME[TOKEN_NUM] -- String name of the token TOKEN_NUM. */ -static const char* const yytname[] = +/* YYTNME[TOKEN_NUM] -- String name of the token TOKEN_NUM. */ +static const char *const yytname[] = { %%tname }; @@ -218,8 +283,23 @@ 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) && (defined (__STDC__) || defined (__cplusplus)) +# include /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T size_t +#endif +#if ! defined (YYSIZE_T) +# define YYSIZE_T unsigned int +#endif + #define yyerrok (yyerrstatus = 0) -#define yyclearin (%%yychar = YYEMPTY) +#define yyclearin (yychar = YYEMPTY) #define YYEMPTY -2 #define YYEOF 0 @@ -237,17 +317,17 @@ static const short yycheck[] = #define YYBACKUP(Token, Value) \ do \ - if (%%yychar == YYEMPTY && yylen == 1) \ + if (yychar == YYEMPTY && yylen == 1) \ { \ - %%yychar = (Token); \ - %%yylval = (Value); \ - yychar1 = YYTRANSLATE (%%yychar); \ + yychar = (Token); \ + yylval = (Value); \ + yychar1 = YYTRANSLATE (yychar); \ YYPOPSTACK; \ goto yybackup; \ } \ else \ { \ - %%yyerror ("syntax error: cannot back up"); \ + yyerror ("syntax error: cannot back up"); \ YYERROR; \ } \ while (0) @@ -273,33 +353,34 @@ while (0) #if YYPURE # if YYLSP_NEEDED # ifdef YYLEX_PARAM -# define YYLEX %%yylex (&%%yylval, &yylloc, YYLEX_PARAM) +# define YYLEX yylex (&yylval, &yylloc, YYLEX_PARAM) # else -# define YYLEX %%yylex (&%%yylval, &yylloc) +# define YYLEX yylex (&yylval, &yylloc) # endif # else /* !YYLSP_NEEDED */ # ifdef YYLEX_PARAM -# define YYLEX %%yylex (&%%yylval, YYLEX_PARAM) +# define YYLEX yylex (&yylval, YYLEX_PARAM) # else -# define YYLEX %%yylex (&%%yylval) +# define YYLEX yylex (&yylval) # endif # endif /* !YYLSP_NEEDED */ #else /* !YYPURE */ -# define YYLEX %%yylex () +# define YYLEX yylex () #endif /* !YYPURE */ /* Enable debugging if requested. */ #if YYDEBUG +# include # define YYDPRINTF(Args) \ do { \ - if (%%yydebug) \ + if (yydebug) \ fprintf Args; \ } while (0) /* Nonzero means print parse trace. [The following comment makes no sense to me. Could someone clarify it? --akim] Since this is uninitialized, it does not stop multiple parsers from coexisting. */ -int %%yydebug; +int yydebug; #else /* !YYDEBUG */ # define YYDPRINTF(Args) #endif /* !YYDEBUG */ @@ -310,7 +391,12 @@ 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 @@ -321,39 +407,89 @@ 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 * +# ifndef __cplusplus +yystpcpy (yydest, yysrc) + char *yydest; + const char *yysrc; +# else +yystpcpy (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 + +#endif /* !YYERROR_VERBOSE */ + -#line %%line "%%filename" +#line %%line "%%skeleton" /* The user can define YYPARSE_PARAM as the name of an argument to be passed into yyparse. The argument should have type void *. @@ -377,53 +513,54 @@ __yy_memcpy (char *to, const char *from, unsigned int count) /* Prevent warning if -Wstrict-prototypes. */ #ifdef __GNUC__ # ifdef YYPARSE_PARAM -int %%yyparse (void *); +int yyparse (void *); # else -int %%yyparse (void); +int yyparse (void); # endif #endif /* 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; \ +int yychar; \ \ -/* The semantic value of the lookahead symbol. */ \ -YYSTYPE %%yylval; \ +/* The semantic value of the lookahead symbol. */ \ +YYSTYPE yylval; \ \ /* Number of parse errors so far. */ \ -int %%yynerrs; +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. */ +/* If nonreentrant, generate the variables here. */ #if !YYPURE YY_DECL_VARIABLES #endif /* !YYPURE */ int -%%yyparse (YYPARSE_PARAM_ARG) +yyparse (YYPARSE_PARAM_ARG) YYPARSE_PARAM_DECL { - /* If reentrant, generate the variables here. */ + /* If reentrant, generate the variables here. */ #if YYPURE YY_DECL_VARIABLES #endif /* !YYPURE */ 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. */ @@ -431,13 +568,13 @@ int /* 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 to reallocate them elsewhere. */ - /* The state stack. */ + /* The state stack. */ short yyssa[YYINITDEPTH]; short *yyss = yyssa; register short *yyssp; @@ -460,26 +597,25 @@ int # 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. */ + rule. */ int yylen; YYDPRINTF ((stderr, "Starting parse\n")); yystate = 0; yyerrstatus = 0; - %%yynerrs = 0; - %%yychar = YYEMPTY; /* Cause a token to be read. */ + yynerrs = 0; + yychar = YYEMPTY; /* Cause a token to be read. */ /* Initialize stack pointers. Waste one element of value and location stack @@ -496,92 +632,81 @@ int /*------------------------------------------------------------. | 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; + char *yyptr = (char *) 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 ((stderr, "Stack size increased to %lu\n", + (unsigned long int) yystacksize)); if (yyssp >= yyss + yystacksize - 1) YYABORT; @@ -611,35 +736,35 @@ yybackup: /* yychar is either YYEMPTY or YYEOF or a valid token in external form. */ - if (%%yychar == YYEMPTY) + if (yychar == YYEMPTY) { YYDPRINTF ((stderr, "Reading a token: ")); - %%yychar = YYLEX; + yychar = YYLEX; } - /* Convert token to internal form (in yychar1) for indexing tables with */ + /* Convert token to internal form (in yychar1) for indexing tables with. */ - if (%%yychar <= 0) /* This means end of input. */ + if (yychar <= 0) /* This means end of input. */ { yychar1 = 0; - %%yychar = YYEOF; /* Don't call YYLEX any more */ + yychar = YYEOF; /* Don't call YYLEX any more. */ YYDPRINTF ((stderr, "Now at end of input.\n")); } else { - yychar1 = YYTRANSLATE (%%yychar); + yychar1 = YYTRANSLATE (yychar); #if YYDEBUG /* We have to keep this `#if YYDEBUG', since we use variables which are defined only if `YYDEBUG' is set. */ - if (%%yydebug) + if (yydebug) { - fprintf (stderr, "Next token is %d (%s", %%yychar, yytname[yychar1]); + fprintf (stderr, "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 (stderr, yychar, yylval); # endif fprintf (stderr, ")\n"); } @@ -673,13 +798,13 @@ yybackup: YYACCEPT; /* Shift the lookahead token. */ - YYDPRINTF ((stderr, "Shifting token %d (%s), ", %%yychar, yytname[yychar1])); + YYDPRINTF ((stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1])); /* Discard the token being shifted unless it is eof. */ - if (%%yychar != YYEOF) - %%yychar = YYEMPTY; + if (yychar != YYEOF) + yychar = YYEMPTY; - *++yyvsp = %%yylval; + *++yyvsp = yylval; #if YYLSP_NEEDED *++yylsp = yylloc; #endif @@ -730,24 +855,24 @@ yyreduce: #if YYDEBUG /* We have to keep this `#if YYDEBUG', since we use variables which are defined only if `YYDEBUG' is set. */ - if (%%yydebug) + if (yydebug) { - int i; + int yyi; fprintf (stderr, "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]]); + for (yyi = yyprhs[yyn]; yyrhs[yyi] > 0; yyi++) + fprintf (stderr, "%s ", yytname[yyrhs[yyi]]); fprintf (stderr, " -> %s\n", yytname[yyr1[yyn]]); } #endif switch (yyn) { - %%action /* The action file replaces this line. */ + %%action } -#line %%line "%%filename" +#line %%line "%%skeleton" yyvsp -= yylen; yyssp -= yylen; @@ -756,12 +881,12 @@ yyreduce: #endif #if YYDEBUG - if (%%yydebug) + if (yydebug) { - short *ssp1 = yyss - 1; + short *yyssp1 = yyss - 1; fprintf (stderr, "state stack now"); - while (ssp1 != yyssp) - fprintf (stderr, " %d", *++ssp1); + while (yyssp1 != yyssp) + fprintf (stderr, " %d", *++yyssp1); fprintf (stderr, "\n"); } #endif @@ -793,79 +918,80 @@ yyerrlab: /* If not already recovering from an error, report this error. */ if (!yyerrstatus) { - ++%%yynerrs; + ++yynerrs; #if YYERROR_VERBOSE yyn = yypact[yystate]; 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 */ - %%yyerror ("parse error"); + yyerror ("parse error"); } goto yyerrlab1; -/*--------------------------------------------------. -| yyerrlab1 -- error raised explicitly by an action | -`--------------------------------------------------*/ +/*----------------------------------------------------. +| yyerrlab1 -- error raised explicitly by an action. | +`----------------------------------------------------*/ yyerrlab1: if (yyerrstatus == 3) { /* If just tried and failed to reuse lookahead token after an error, discard it. */ - /* return failure if at end of input */ - if (%%yychar == YYEOF) + /* Return failure if at end of input. */ + if (yychar == YYEOF) YYABORT; YYDPRINTF ((stderr, "Discarding token %d (%s).\n", - %%yychar, yytname[yychar1])); - %%yychar = YYEMPTY; + yychar, yytname[yychar1])); + yychar = YYEMPTY; } /* Else will try to reuse lookahead token after shifting the error token. */ - yyerrstatus = 3; /* Each real token shifted decrements this */ + yyerrstatus = 3; /* Each real token shifted decrements this. */ goto yyerrhandle; @@ -888,7 +1014,7 @@ yyerrdefault: /*---------------------------------------------------------------. | yyerrpop -- pop the current state because it cannot handle the | -| error token | +| error token. | `---------------------------------------------------------------*/ yyerrpop: if (yyssp == yyss) @@ -900,12 +1026,12 @@ yyerrpop: #endif #if YYDEBUG - if (%%yydebug) + if (yydebug) { - short *ssp1 = yyss - 1; + short *yyssp1 = yyss - 1; fprintf (stderr, "Error: state stack now"); - while (ssp1 != yyssp) - fprintf (stderr, " %d", *++ssp1); + while (yyssp1 != yyssp) + fprintf (stderr, " %d", *++yyssp1); fprintf (stderr, "\n"); } #endif @@ -938,7 +1064,7 @@ yyerrhandle: YYDPRINTF ((stderr, "Shifting error token, ")); - *++yyvsp = %%yylval; + *++yyvsp = yylval; #if YYLSP_NEEDED *++yylsp = yylloc; #endif @@ -951,31 +1077,31 @@ 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; } +#line %%input-line "%%filename" %%epilogue -