X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/ff48177d2514d8ba381852e4d1f50b98ef3cd763..4134cae3c5ff2fc3346ebc5b10d5c25c72c72cfe:/src/bison.simple diff --git a/src/bison.simple b/src/bison.simple index d6268630..7f17cd15 100644 --- a/src/bison.simple +++ b/src/bison.simple @@ -33,8 +33,18 @@ #include +/* 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 + /* Copy the user declarations. */ -%%definitions +%%prologue #ifndef __cplusplus # ifndef __STDC__ @@ -118,7 +128,7 @@ typedef struct yyltype # define YYERROR_VERBOSE %%verbose #endif -/* Tokens. */ +/* Tokens. */ %%tokendef #define YYFINAL %%final @@ -160,8 +170,8 @@ 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 }; @@ -219,7 +229,7 @@ static const short yycheck[] = }; #define yyerrok (yyerrstatus = 0) -#define yyclearin (%%yychar = YYEMPTY) +#define yyclearin (yychar = YYEMPTY) #define YYEMPTY -2 #define YYEOF 0 @@ -237,17 +247,17 @@ 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) @@ -268,38 +278,41 @@ while (0) Current.last_column = Rhs[N].last_column; #endif +/* Definition of YYLSP_NEEDED. */ +#define YYLSP_NEEDED %%locations_flag + /* YYLEX -- calling `yylex' with the right arguments. */ #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 # 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 */ @@ -377,9 +390,9 @@ __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 @@ -388,13 +401,13 @@ int %%yyparse (void); #define _YY_DECL_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 \ @@ -407,17 +420,17 @@ YYLTYPE yylloc; _YY_DECL_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 */ @@ -437,7 +450,7 @@ int 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; @@ -471,15 +484,15 @@ int # 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 @@ -545,7 +558,7 @@ yysetstate: /* Extend the stack our own way. */ if (yystacksize >= YYMAXDEPTH) { - %%yyerror ("parser stack overflow"); + yyerror ("parser stack overflow"); if (yyfree_stacks) { free (yyss); @@ -611,35 +624,35 @@ 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 +686,13 @@ 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 @@ -730,7 +743,7 @@ 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; @@ -745,7 +758,7 @@ yyreduce: #endif switch (yyn) { - %%action /* The action file replaces this line. */ + %%action /* The action file replaces this line. */ } #line %%line "%%filename" @@ -756,7 +769,7 @@ yyreduce: #endif #if YYDEBUG - if (%%yydebug) + if (yydebug) { short *ssp1 = yyss - 1; fprintf (stderr, "state stack now"); @@ -793,7 +806,7 @@ yyerrlab: /* If not already recovering from an error, report this error. */ if (!yyerrstatus) { - ++%%yynerrs; + ++yynerrs; #if YYERROR_VERBOSE yyn = yypact[yystate]; @@ -811,12 +824,12 @@ yyerrlab: if (yycheck[x + yyn] == x) size += strlen (yytname[x]) + 15, count++; size += strlen ("parse error, unexpected `") + 1; - size += strlen (yytname[YYTRANSLATE (%%yychar)]); + size += strlen (yytname[YYTRANSLATE (yychar)]); msg = (char *) malloc (size); if (msg != 0) { strcpy (msg, "parse error, unexpected `"); - strcat (msg, yytname[YYTRANSLATE (%%yychar)]); + strcat (msg, yytname[YYTRANSLATE (yychar)]); strcat (msg, "'"); if (count < 5) @@ -832,40 +845,40 @@ yyerrlab: count++; } } - %%yyerror (msg); + yyerror (msg); free (msg); } else - %%yyerror ("parse error; also virtual memory exceeded"); + yyerror ("parse error; also virtual memory exceeded"); } 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 +901,7 @@ yyerrdefault: /*---------------------------------------------------------------. | yyerrpop -- pop the current state because it cannot handle the | -| error token | +| error token. | `---------------------------------------------------------------*/ yyerrpop: if (yyssp == yyss) @@ -900,7 +913,7 @@ yyerrpop: #endif #if YYDEBUG - if (%%yydebug) + if (yydebug) { short *ssp1 = yyss - 1; fprintf (stderr, "Error: state stack now"); @@ -938,7 +951,7 @@ yyerrhandle: YYDPRINTF ((stderr, "Shifting error token, ")); - *++yyvsp = %%yylval; + *++yyvsp = yylval; #if YYLSP_NEEDED *++yylsp = yylloc; #endif @@ -977,5 +990,5 @@ yyabortlab: return 1; } -%%user_code +%%epilogue