This is bi-parser.c in view mode; [Download] [Up]
/* A Bison parser, made from bi-parser.y */ #define DEFOP 258 #define STRING 259 #line 21 "bi-parser.y" #include <stdio.h> #include "hconfig.h" #include "bi-defs.h" extern char yytext[]; extern int yyleng; /* Chain of all defs built by the parser. */ struct def *defs; int ndefs; static struct node *makenode (); static struct variation *makevar (); static struct def *makedef (); void yyerror (); #line 43 "bi-parser.y" typedef union { char *string; struct def *def; struct variation *variation; struct node *node; } YYSTYPE; #ifndef YYLTYPE typedef struct yyltype { int timestamp; int first_line; int first_column; int last_line; int last_column; char *text; } yyltype; #define YYLTYPE yyltype #endif #include <stdio.h> #ifndef __STDC__ #define const #endif #define YYFINAL 39 #define YYFLAG -32768 #define YYNTBASE 8 #define YYTRANSLATE(x) ((unsigned)(x) <= 259 ? yytranslate[x] : 17) static const char yytranslate[] = { 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 5, 7, 2, 2, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 3, 4 }; static const short yyrline[] = { 0, 59, 64, 66, 70, 75, 77, 81, 84, 86, 88, 92, 94, 97, 100, 104, 107, 111 }; static const char * const yytname[] = { 0, "error","$illegal.","DEFOP","STRING","'('","','","')'","top" }; static const short yyr1[] = { 0, 8, 9, 9, 10, 11, 11, 12, 12, 12, 12, 13, 13, 14, 14, 15, 15, 16 }; static const short yyr2[] = { 0, 1, 1, 2, 10, 1, 3, 3, 5, 7, 9, 0, 1, 3, 0, 1, 3, 1 }; static const short yydefact[] = { 0, 0, 1, 2, 0, 3, 0, 11, 12, 0, 0, 0, 11, 0, 5, 0, 0, 0, 14, 7, 6, 4, 0, 0, 17, 0, 15, 14, 8, 13, 0, 0, 16, 14, 9, 0, 10, 0, 0, 0 }; static const short yydefgoto[] = { 37, 2, 3, 13, 14, 9, 23, 25, 26 }; static const short yypact[] = { 2, 6, 2,-32768, 8,-32768, 7, 10,-32768, 9, 11, 12, 10, -5,-32768, -3, 12, 13, 14,-32768,-32768, -32768, 17, 1,-32768, 15, 18, 14,-32768,-32768, 17, 3,-32768, 14,-32768, 16,-32768, 25, 26,-32768 }; static const short yypgoto[] = {-32768, -32768, 27,-32768, 19, 20, -27, -12,-32768 }; #define YYLAST 35 static const short yytable[] = { 31, 16, 17, 18, 19, 1, 35, 27, 28, 33, 34, 4, 6, 7, 8, 10, 11, 12, 32, 22, 21, 24, 29, 36, 30, 38, 39, 0, 0, 5, 0, 0, 15, 0, 0, 20 }; static const short yycheck[] = { 27, 6, 7, 6, 7, 3, 33, 6, 7, 6, 7, 5, 4, 6, 4, 6, 5, 5, 30, 5, 7, 4, 7, 7, 6, 0, 0, -1, -1, 2, -1, -1, 12, -1, -1, 16 }; #define YYPURE 1 /* -*-C-*- Note some compilers choke on comments on `#line' lines. */ #line 3 "bison.simple" /* Skeleton output parser for bison, Copyright (C) 1984 Bob Corbett and Richard Stallman This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ #if (!defined (__STDC__) && defined (sparc)) || defined (__sparc__) #include <alloca.h> #endif /* This is the parser code that is written into each bison parser when the %semantic_parser declaration is not specified in the grammar. It was written by Richard Stallman by simplifying the hairy parser used when %semantic_parser is specified. */ /* Note: there must be only one dollar sign in this file. It is replaced by the list of actions, each action as one case of the switch. */ #define yyerrok (yyerrstatus = 0) #define yyclearin (yychar = YYEMPTY) #define YYEMPTY -2 #define YYEOF 0 #define YYFAIL goto yyerrlab; #define YYACCEPT return(0) #define YYABORT return(1) #define YYERROR goto yyerrlab #define YYTERROR 1 #define YYERRCODE 256 #ifndef YYIMPURE #define YYLEX yylex() #endif #ifndef YYPURE #define YYLEX yylex(&yylval, &yylloc) #endif /* If nonreentrant, generate the variables here */ #ifndef YYIMPURE int yychar; /* the lookahead symbol */ YYSTYPE yylval; /* the semantic value of the */ /* lookahead symbol */ YYLTYPE yylloc; /* location data for the lookahead */ /* symbol */ int yynerrs; /* number of parse errors so far */ #endif /* YYIMPURE */ #if YYDEBUG != 0 int yydebug; /* nonzero means print parse trace */ /* Since this is uninitialized, it does not stop multiple parsers from coexisting. */ #endif /* YYMAXDEPTH indicates the initial size of the parser's stacks */ #ifndef YYMAXDEPTH #define YYMAXDEPTH 200 #endif /* YYMAXLIMIT is the maximum size the stacks can grow to (effective only if the built-in stack extension method is used). */ #ifndef YYMAXLIMIT #define YYMAXLIMIT 10000 #endif #line 90 "bison.simple" int yyparse() { register int yystate; register int yyn; register short *yyssp; register YYSTYPE *yyvsp; YYLTYPE *yylsp; int yyerrstatus; /* number of tokens to shift before error messages enabled */ int yychar1; /* lookahead token as an internal (translated) token number */ short yyssa[YYMAXDEPTH]; /* the state stack */ YYSTYPE yyvsa[YYMAXDEPTH]; /* the semantic value stack */ YYLTYPE yylsa[YYMAXDEPTH]; /* the location stack */ short *yyss = yyssa; /* refer to the stacks thru separate pointers */ YYSTYPE *yyvs = yyvsa; /* to allow yyoverflow to reallocate them elsewhere */ YYLTYPE *yyls = yylsa; int yymaxdepth = YYMAXDEPTH; #ifndef YYPURE int yychar; YYSTYPE yylval; YYLTYPE yylloc; int yynerrs; #endif YYSTYPE yyval; /* the variable used to return */ /* semantic values from the action */ /* routines */ int yylen; #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Starting parse\n"); #endif yystate = 0; yyerrstatus = 0; yynerrs = 0; yychar = YYEMPTY; /* Cause a token to be read. */ /* Initialize stack pointers. Waste one element of value and location stack so that they stay on the same level as the state stack. */ yyssp = yyss - 1; yyvsp = yyvs; yylsp = yyls; /* Push a new state, which is found in yystate . */ /* In all cases, when you get here, the value and location stacks have just been pushed. so pushing a state here evens the stacks. */ yynewstate: *++yyssp = yystate; if (yyssp >= yyss + yymaxdepth - 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; YYLTYPE *yyls1 = yyls; short *yyss1 = yyss; /* Get the current used size of the three stacks, in elements. */ int size = yyssp - yyss + 1; #ifdef yyoverflow /* Each stack pointer address is followed by the size of the data in use in that stack, in bytes. */ yyoverflow("parser stack overflow", &yyss1, size * sizeof (*yyssp), &yyvs1, size * sizeof (*yyvsp), &yyls1, size * sizeof (*yylsp), &yymaxdepth); yyss = yyss1; yyvs = yyvs1; yyls = yyls1; #else /* no yyoverflow */ /* Extend the stack our own way. */ if (yymaxdepth >= YYMAXLIMIT) yyerror("parser stack overflow"); yymaxdepth *= 2; if (yymaxdepth > YYMAXLIMIT) yymaxdepth = YYMAXLIMIT; yyss = (short *) alloca (yymaxdepth * sizeof (*yyssp)); bcopy ((char *)yyss1, (char *)yyss, size * sizeof (*yyssp)); yyvs = (YYSTYPE *) alloca (yymaxdepth * sizeof (*yyvsp)); bcopy ((char *)yyvs1, (char *)yyvs, size * sizeof (*yyvsp)); #ifdef YYLSP_NEEDED yyls = (YYLTYPE *) alloca (yymaxdepth * sizeof (*yylsp)); bcopy ((char *)yyls1, (char *)yyls, size * sizeof (*yylsp)); #endif #endif /* no yyoverflow */ yyssp = yyss + size - 1; yyvsp = yyvs + size - 1; #ifdef YYLSP_NEEDED yylsp = yyls + size - 1; #endif #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Stack size increased to %d\n", yymaxdepth); #endif if (yyssp >= yyss + yymaxdepth - 1) YYABORT; } #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Entering state %d\n", yystate); #endif /* Do appropriate processing given the current state. */ /* Read a lookahead token if we need one and don't already have one. */ yyresume: /* First try to decide what to do without reference to lookahead token. */ yyn = yypact[yystate]; if (yyn == YYFLAG) goto yydefault; /* Not known => get a lookahead token if don't already have one. */ /* yychar is either YYEMPTY or YYEOF or a valid token in external form. */ if (yychar == YYEMPTY) { #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Reading a token: "); #endif yychar = YYLEX; } /* Convert token to internal form (in yychar1) for indexing tables with */ if (yychar <= 0) /* This means end of input. */ { yychar1 = 0; yychar = YYEOF; /* Don't call YYLEX any more */ #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Now at end of input.\n"); #endif } else { yychar1 = YYTRANSLATE(yychar); #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Next token is %d (%s)\n", yychar, yytname[yychar1]); #endif } yyn += yychar1; if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != yychar1) goto yydefault; yyn = yytable[yyn]; /* yyn is what to do for this token type in this state. Negative => reduce, -yyn is rule number. Positive => shift, yyn is new state. New state is final state => don't bother to shift, just return success. 0, or most negative number => error. */ if (yyn < 0) { if (yyn == YYFLAG) goto yyerrlab; yyn = -yyn; goto yyreduce; } else if (yyn == 0) goto yyerrlab; if (yyn == YYFINAL) YYACCEPT; /* Shift the lookahead token. */ #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Shifting token %d (%s), ", yychar, yytname[yychar1]); #endif /* Discard the token being shifted unless it is eof. */ if (yychar != YYEOF) yychar = YYEMPTY; *++yyvsp = yylval; #ifdef YYLSP_NEEDED *++yylsp = yylloc; #endif /* count tokens shifted since error; after three, turn off error status. */ if (yyerrstatus) yyerrstatus--; yystate = yyn; goto yynewstate; /* Do the default action for the current state. */ yydefault: yyn = yydefact[yystate]; if (yyn == 0) goto yyerrlab; /* Do a reduction. yyn is the number of a rule to reduce with. */ yyreduce: yylen = yyr2[yyn]; yyval = yyvsp[1-yylen]; /* implement default value of the action */ #if YYDEBUG != 0 if (yydebug) { if (yylen == 1) fprintf (stderr, "Reducing 1 value via line %d, ", yyrline[yyn]); else fprintf (stderr, "Reducing %d values via line %d, ", yylen, yyrline[yyn]); } #endif switch (yyn) { case 1: #line 61 "bi-parser.y" { defs = yyvsp[0].def; ; break;} case 3: #line 67 "bi-parser.y" { yyvsp[0].def->next = yyvsp[-1].def; yyval.def = yyvsp[0].def; ; break;} case 4: #line 72 "bi-parser.y" { yyval.def = makedef (yyvsp[-7].string, yyvsp[-5].string, yyvsp[-2].variation); ; break;} case 6: #line 78 "bi-parser.y" { yyvsp[0].variation->next = yyvsp[-2].variation; yyval.variation = yyvsp[0].variation; ; break;} case 7: #line 83 "bi-parser.y" { yyval.variation = makevar (yyvsp[-1].string, (struct node *) NULL, (struct node *) NULL, (struct node *) NULL); ; break;} case 8: #line 85 "bi-parser.y" { yyval.variation = makevar (yyvsp[-3].string, yyvsp[-1].node, (struct node *) NULL, (struct node *) NULL); ; break;} case 9: #line 87 "bi-parser.y" { yyval.variation = makevar (yyvsp[-5].string, yyvsp[-3].node, yyvsp[-1].node, (struct node *) NULL); ; break;} case 10: #line 89 "bi-parser.y" { yyval.variation = makevar (yyvsp[-7].string, yyvsp[-5].node, yyvsp[-3].node, yyvsp[-1].node); ; break;} case 11: #line 93 "bi-parser.y" { yyval.string = ""; ; break;} case 12: #line 94 "bi-parser.y" { yyval.string = yyvsp[0].string; ; break;} case 13: #line 99 "bi-parser.y" { yyval.node = yyvsp[-1].node; ; break;} case 14: #line 101 "bi-parser.y" { yyval.node = NULL; ; break;} case 16: #line 108 "bi-parser.y" { yyvsp[-2].node->next = yyvsp[0].node; yyval.node = yyvsp[-2].node; ; break;} case 17: #line 113 "bi-parser.y" { yyval.node = makenode (yyvsp[0].string); ; break;} } /* the action file gets copied in in place of this dollarsign */ #line 327 "bison.simple" yyvsp -= yylen; yyssp -= yylen; #ifdef YYLSP_NEEDED yylsp -= yylen; #endif #if YYDEBUG != 0 if (yydebug) { short *ssp1 = yyss - 1; fprintf (stderr, "state stack now"); while (ssp1 != yyssp) fprintf (stderr, " %d", *++ssp1); fprintf (stderr, "\n"); } #endif *++yyvsp = yyval; #ifdef YYLSP_NEEDED yylsp++; if (yylen == 0) { yylsp->first_line = yylloc.first_line; yylsp->first_column = yylloc.first_column; yylsp->last_line = (yylsp-1)->last_line; yylsp->last_column = (yylsp-1)->last_column; yylsp->text = 0; } else { yylsp->last_line = (yylsp+yylen-1)->last_line; yylsp->last_column = (yylsp+yylen-1)->last_column; } #endif /* Now "shift" the result of the reduction. Determine what state that goes to, based on the state we popped back to and the rule number reduced by. */ yyn = yyr1[yyn]; yystate = yypgoto[yyn - YYNTBASE] + *yyssp; if (yystate >= 0 && yystate <= YYLAST && yycheck[yystate] == *yyssp) yystate = yytable[yystate]; else yystate = yydefgoto[yyn - YYNTBASE]; goto yynewstate; yyerrlab: /* here on detecting error */ if (! yyerrstatus) /* If not already recovering from an error, report this error. */ { ++yynerrs; yyerror("parse error"); } 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) YYABORT; #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Discarding token %d (%s).\n", yychar, yytname[yychar1]); #endif yychar = YYEMPTY; } /* Else will try to reuse lookahead token after shifting the error token. */ yyerrstatus = 3; /* Each real token shifted decrements this */ goto yyerrhandle; yyerrdefault: /* current state does not do anything special for the error token. */ #if 0 /* This is wrong; only states that explicitly want error tokens should shift them. */ yyn = yydefact[yystate]; /* If its default is to accept any token, ok. Otherwise pop it.*/ if (yyn) goto yydefault; #endif yyerrpop: /* pop the current state because it cannot handle the error token */ if (yyssp == yyss) YYABORT; yyvsp--; yystate = *--yyssp; #ifdef YYLSP_NEEDED yylsp--; #endif #if YYDEBUG != 0 if (yydebug) { short *ssp1 = yyss - 1; fprintf (stderr, "Error: state stack now"); while (ssp1 != yyssp) fprintf (stderr, " %d", *++ssp1); fprintf (stderr, "\n"); } #endif yyerrhandle: yyn = yypact[yystate]; if (yyn == YYFLAG) goto yyerrdefault; yyn += YYTERROR; if (yyn < 0 || yyn > YYLAST || yycheck[yyn] != YYTERROR) goto yyerrdefault; yyn = yytable[yyn]; if (yyn < 0) { if (yyn == YYFLAG) goto yyerrpop; yyn = -yyn; goto yyreduce; } else if (yyn == 0) goto yyerrpop; if (yyn == YYFINAL) YYACCEPT; #if YYDEBUG != 0 if (yydebug) fprintf(stderr, "Shifting error token, "); #endif *++yyvsp = yylval; #ifdef YYLSP_NEEDED *++yylsp = yylloc; #endif yystate = yyn; goto yynewstate; } #line 116 "bi-parser.y" static struct node * makenode (s) char *s; { struct node *n; n = (struct node *) malloc (sizeof (struct node)); n->text = s; n->next = NULL; return n; } static struct variation * makevar (name, inputs, outputs, literals) char *name; struct node *inputs, *outputs, *literals; { struct variation *v; v = (struct variation *) malloc (sizeof (struct variation)); v->name = name; v->code = ndefs++; v->inputs = inputs; v->outputs = outputs; v->literals = literals; v->next = NULL; return v; } static struct def * makedef (name, template, vars) char *name, *template; struct variation *vars; { struct def *d; d = (struct def *) malloc (sizeof (struct def)); d->basename = name; d->template = template; d->variations = vars; d->next = NULL; return d; } void yyerror (s) char *s; { fprintf (stderr, "syntax error in input\n"); exit (FATAL_EXIT_CODE); }
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.