+++ /dev/null
-#include <stdio.h>
-#include <strings.h>
-#include "cpp.h"
-
-# define number 257
-# define stop 258
-# define DEFINED 259
-# define EQ 260
-# define NE 261
-# define LE 262
-# define GE 263
-# define LS 264
-# define RS 265
-# define ANDAND 266
-# define OROR 267
-# define UMINUS 268
-#define yyclearin yychar = -1
-#define yyerrok yyerrflag = 0
-extern int yychar;
-extern short yyerrflag;
-#ifndef YYMAXDEPTH
-#define YYMAXDEPTH 150
-#endif
-#ifndef YYSTYPE
-#define YYSTYPE int
-#endif
-YYSTYPE yylval, yyval;
-# define YYERRCODE 256
-
-# line 82 "cpy.y"
-
-/*# include "cpp.h"*/
-
-#define isid(a) ((fastab+COFF)[a]&IB)
-#define IB 1
-/* #if '\377' < 0 it would be nice if this worked properly!!!!! */
-#if pdp11 | vax | mc68000
-#define COFF 128
-#else
-#define COFF 0
-#endif
-
-int yylex() {
- static int ifdef=0;
- static char *op2[]={"||", "&&" , ">>", "<<", ">=", "<=", "!=", "=="};
- static int val2[]={OROR, ANDAND, RS, LS, GE, LE, NE, EQ};
- static char *opc="b\bt\tn\nf\fr\r\\\\";
- register char savc, *s; int val;
- register char **p2;
- struct symtab *sp;
-
-for (;;) {
- int opt_passcom = passcom; /* this crap makes #if's work */
- passcom = 0; /* even with -C option */
- newp=skipbl(newp); /* (else comments make syntax errs) */
- passcom = opt_passcom; /* nb: lint uses -C so its useful! */
- if (*inp=='\n') return(stop); /* end of #if */
- savc= *newp; *newp='\0';
- for (p2=op2+8; --p2>=op2; ) /* check 2-char ops */
- if (0==strcmp(*p2,inp)) {val=val2[p2-op2]; goto ret;}
- s="+-*/%<>&^|?:!~(),"; /* check 1-char ops */
- while (*s) if (*s++== *inp) {val= *--s; goto ret;}
- if (*inp<='9' && *inp>='0') {/* a number */
- if (*inp=='0') yylval= (inp[1]=='x' || inp[1]=='X') ?
- tobinary(inp+2,16) : tobinary(inp+1,8);
- else yylval=tobinary(inp,10);
- val=number;
- } else if (isid(*inp)) {
- if (0==strcmp(inp,"defined")) {ifdef=1; ++flslvl; val=DEFINED;}
- else {
- sp=lookup(inp,-1); if (ifdef!=0) {ifdef=0; --flslvl;}
- yylval= (sp->value==0) ? 0 : 1;
- val=number;
- }
- } else if (*inp=='\'') {/* character constant */
- val=number;
- if (inp[1]=='\\') {/* escaped */
- char c; if (newp[-1]=='\'') newp[-1]='\0';
- s=opc;
- while (*s) if (*s++!=inp[2]) ++s; else {yylval= *s; goto ret;}
- if (inp[2]<='9' && inp[2]>='0') yylval=c=tobinary(inp+2,8);
- else yylval=inp[2];
- } else yylval=inp[1];
- } else if (0==strcmp("\\\n",inp)) {*newp=savc; continue;}
- else {
- *newp=savc; pperror("Illegal character %c in preprocessor if", *inp);
- continue;
- }
-ret:
- *newp=savc; outp=inp=newp; return(val);
-}
-}
-
-int tobinary(st, b) char *st; int b; {
- int n, c, t;
- char *s;
- n=0;
- s=st;
- while (c = *s++) {
- switch(c) {
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- t = c-'0'; break;
- case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
- t = c-'a'+10; if (b>10) break;
- case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
- t = c - 'A'+10; if (b>10) break;
- default:
- t = -1;
- if ( c=='l' || c=='L') if (*s=='\0') break;
- pperror("Illegal number %s", st);
- }
- if (t<0) break;
- n = n*b+t;
- }
-return(n);
-}
-short yyexca[] ={
--1, 1,
- 0, -1,
- -2, 0,
--1, 44,
- 262, 0,
- 263, 0,
- 60, 0,
- 62, 0,
- -2, 9,
--1, 45,
- 262, 0,
- 263, 0,
- 60, 0,
- 62, 0,
- -2, 10,
--1, 46,
- 262, 0,
- 263, 0,
- 60, 0,
- 62, 0,
- -2, 11,
--1, 47,
- 262, 0,
- 263, 0,
- 60, 0,
- 62, 0,
- -2, 12,
--1, 48,
- 260, 0,
- 261, 0,
- -2, 13,
--1, 49,
- 260, 0,
- 261, 0,
- -2, 14,
- };
-# define YYNPROD 30
-# define YYLAST 363
-short yyact[]={
-
- 13, 24, 35, 58, 13, 11, 14, 30, 15, 11,
- 12, 60, 13, 24, 12, 1, 57, 11, 14, 30,
- 15, 59, 12, 18, 13, 19, 29, 0, 0, 11,
- 14, 0, 15, 0, 12, 18, 3, 19, 29, 13,
- 24, 31, 32, 33, 11, 14, 30, 15, 0, 12,
- 13, 24, 0, 0, 0, 11, 14, 25, 15, 5,
- 12, 0, 18, 0, 19, 29, 7, 0, 0, 25,
- 0, 4, 0, 18, 0, 19, 29, 0, 13, 24,
- 0, 0, 0, 11, 14, 0, 15, 26, 12, 0,
- 0, 0, 13, 24, 0, 0, 25, 11, 14, 26,
- 15, 18, 12, 19, 13, 24, 0, 25, 0, 11,
- 14, 0, 15, 13, 12, 18, 0, 19, 11, 14,
- 0, 15, 0, 12, 0, 0, 26, 18, 0, 19,
- 0, 0, 0, 0, 13, 25, 18, 26, 19, 11,
- 14, 0, 15, 0, 12, 13, 0, 0, 0, 25,
- 11, 14, 6, 15, 0, 12, 0, 18, 0, 19,
- 0, 0, 0, 0, 0, 26, 0, 0, 0, 0,
- 0, 0, 2, 0, 0, 0, 0, 0, 0, 26,
- 34, 0, 0, 0, 37, 38, 39, 40, 41, 42,
- 43, 44, 45, 46, 47, 48, 49, 50, 51, 52,
- 53, 54, 55, 56, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 36,
- 0, 0, 0, 22, 23, 20, 21, 16, 17, 27,
- 28, 0, 61, 0, 0, 22, 23, 20, 21, 16,
- 17, 27, 28, 0, 0, 0, 0, 0, 0, 0,
- 0, 16, 17, 0, 0, 0, 0, 0, 0, 0,
- 10, 0, 22, 23, 20, 21, 16, 17, 27, 28,
- 0, 0, 0, 22, 23, 20, 21, 16, 17, 27,
- 28, 0, 0, 9, 0, 8, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 22, 23, 20, 21, 16, 17, 27, 0, 0,
- 0, 0, 0, 0, 0, 22, 23, 20, 21, 16,
- 17, 0, 0, 0, 0, 0, 0, 22, 23, 20,
- 21, 16, 17, 0, 0, 0, 22, 23, 20, 21,
- 16, 17, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 20,
- 21, 16, 17 };
-short yypact[]={
-
- 26,-1000, 2,-1000, 26, 26, 26, 26, -38,-1000,
--1000, 26, 26, 26, 26, 26, 26, 26, 26, 26,
- 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
- 26,-1000,-1000,-1000, -25,-254,-1000,-1000,-1000,-1000,
- -33, -33, 108, 108, -13, -13, -13, -13, 97, 97,
- 76, 67, 67, 55, 41, -37, 13,-1000, -30, 26,
--1000, 13 };
-short yypgo[]={
-
- 0, 15, 172, 36 };
-short yyr1[]={
-
- 0, 1, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 3, 3, 3, 3, 3, 3, 3 };
-short yyr2[]={
-
- 0, 2, 3, 3, 3, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
- 5, 3, 1, 2, 2, 2, 3, 4, 2, 1 };
-short yychk[]={
-
--1000, -1, -2, -3, 45, 33, 126, 40, 259, 257,
- 258, 42, 47, 37, 43, 45, 264, 265, 60, 62,
- 262, 263, 260, 261, 38, 94, 124, 266, 267, 63,
- 44, -3, -3, -3, -2, 40, 257, -2, -2, -2,
- -2, -2, -2, -2, -2, -2, -2, -2, -2, -2,
- -2, -2, -2, -2, -2, -2, -2, 41, 257, 58,
- 41, -2 };
-short yydef[]={
-
- 0, -2, 0, 22, 0, 0, 0, 0, 0, 29,
- 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 23, 24, 25, 0, 0, 28, 2, 3, 4,
- 5, 6, 7, 8, -2, -2, -2, -2, -2, -2,
- 15, 16, 17, 18, 19, 0, 21, 26, 0, 0,
- 27, 20 };
-#pragma ifdef __GNUC__
-#pragma pragma GCC diagnostic ignored "-Wunused-label"
-#pragma endif
-#if defined(DOSCCS) && !defined(lint)
-static char yaccpar_sccsid[] = "@(#)yaccpar 4.1 (Berkeley) 2/11/83";
-#endif
-
-#
-# define YYFLAG -1000
-# define YYERROR goto yyerrlab
-# define YYACCEPT return(0)
-# define YYABORT return(1)
-
-/* parser for yacc output */
-
-#ifdef YYDEBUG
-int yydebug = 0; /* 1 for debugging */
-#endif
-YYSTYPE yyv[YYMAXDEPTH]; /* where the values are stored */
-int yychar = -1; /* current input token number */
-int yynerrs = 0; /* number of errors */
-short yyerrflag = 0; /* error recovery flag */
-
-int yyparse() {
-
- short yys[YYMAXDEPTH];
- short yyj, yym;
- register YYSTYPE *yypvt;
- register short yystate, *yyps, yyn;
- register YYSTYPE *yypv;
- register short *yyxi;
-
- yystate = 0;
- yychar = -1;
- yynerrs = 0;
- yyerrflag = 0;
- yyps= &yys[-1];
- yypv= &yyv[-1];
-
- yystack: /* put a state and value onto the stack */
-
-#ifdef YYDEBUG
- if( yydebug ) printf( "state %d, char 0%o\n", yystate, yychar );
-#endif
- if( ++yyps> &yys[YYMAXDEPTH] ) { yyerror( "yacc stack overflow" ); return(1); }
- *yyps = yystate;
- ++yypv;
- *yypv = yyval;
-
- yynewstate:
-
- yyn = yypact[yystate];
-
- if( yyn<= YYFLAG ) goto yydefault; /* simple state */
-
- if( yychar<0 ) if( (yychar=yylex())<0 ) yychar=0;
- if( (yyn += yychar)<0 || yyn >= YYLAST ) goto yydefault;
-
- if( yychk[ yyn=yyact[ yyn ] ] == yychar ){ /* valid shift */
- yychar = -1;
- yyval = yylval;
- yystate = yyn;
- if( yyerrflag > 0 ) --yyerrflag;
- goto yystack;
- }
-
- yydefault:
- /* default state action */
-
- if( (yyn=yydef[yystate]) == -2 ) {
- if( yychar<0 ) if( (yychar=yylex())<0 ) yychar = 0;
- /* look through exception table */
-
- for( yyxi=yyexca; (*yyxi!= (-1)) || (yyxi[1]!=yystate) ; yyxi += 2 ) ; /* VOID */
-
- while( *(yyxi+=2) >= 0 ){
- if( *yyxi == yychar ) break;
- }
- if( (yyn = yyxi[1]) < 0 ) return(0); /* accept */
- }
-
- if( yyn == 0 ){ /* error */
- /* error ... attempt to resume parsing */
-
- switch( yyerrflag ){
-
- case 0: /* brand new error */
-
- yyerror( "syntax error" );
- yyerrlab:
- ++yynerrs;
-
- case 1:
- case 2: /* incompletely recovered error ... try again */
-
- yyerrflag = 3;
-
- /* find a state where "error" is a legal shift action */
-
- while ( yyps >= yys ) {
- yyn = yypact[*yyps] + YYERRCODE;
- if( yyn>= 0 && yyn < YYLAST && yychk[yyact[yyn]] == YYERRCODE ){
- yystate = yyact[yyn]; /* simulate a shift of "error" */
- goto yystack;
- }
- yyn = yypact[*yyps];
-
- /* the current yyps has no shift onn "error", pop stack */
-
-#ifdef YYDEBUG
- if( yydebug ) printf( "error recovery pops state %d, uncovers %d\n", *yyps, yyps[-1] );
-#endif
- --yyps;
- --yypv;
- }
-
- /* there is no state on the stack with an error shift ... abort */
-
- yyabort:
- return(1);
-
- case 3: /* no shift yet; clobber input char */
-
-#ifdef YYDEBUG
- if( yydebug ) printf( "error recovery discards char %d\n", yychar );
-#endif
-
- if( yychar == 0 ) goto yyabort; /* don't discard EOF, quit */
- yychar = -1;
- goto yynewstate; /* try again in the same state */
-
- }
-
- }
-
- /* reduction by production yyn */
-
-#ifdef YYDEBUG
- if( yydebug ) printf("reduce %d\n",yyn);
-#endif
- yyps -= yyr2[yyn];
- yypvt = yypv;
- yypv -= yyr2[yyn];
- yyval = yypv[1];
- yym=yyn;
- /* consult goto table to find next state */
- yyn = yyr1[yyn];
- yyj = yypgo[yyn] + *yyps + 1;
- if( yyj>=YYLAST || yychk[ yystate = yyact[yyj] ] != -yyn ) yystate = yyact[yypgo[yyn]];
- switch(yym){
-
-case 1:
-# line 22 "cpy.y"
-{return(yypvt[-1]);} break;
-case 2:
-# line 26 "cpy.y"
-{yyval = yypvt[-2] * yypvt[-0];} break;
-case 3:
-# line 28 "cpy.y"
-{yyval = yypvt[-2] / yypvt[-0];} break;
-case 4:
-# line 30 "cpy.y"
-{yyval = yypvt[-2] % yypvt[-0];} break;
-case 5:
-# line 32 "cpy.y"
-{yyval = yypvt[-2] + yypvt[-0];} break;
-case 6:
-# line 34 "cpy.y"
-{yyval = yypvt[-2] - yypvt[-0];} break;
-case 7:
-# line 36 "cpy.y"
-{yyval = yypvt[-2] << yypvt[-0];} break;
-case 8:
-# line 38 "cpy.y"
-{yyval = yypvt[-2] >> yypvt[-0];} break;
-case 9:
-# line 40 "cpy.y"
-{yyval = yypvt[-2] < yypvt[-0];} break;
-case 10:
-# line 42 "cpy.y"
-{yyval = yypvt[-2] > yypvt[-0];} break;
-case 11:
-# line 44 "cpy.y"
-{yyval = yypvt[-2] <= yypvt[-0];} break;
-case 12:
-# line 46 "cpy.y"
-{yyval = yypvt[-2] >= yypvt[-0];} break;
-case 13:
-# line 48 "cpy.y"
-{yyval = yypvt[-2] == yypvt[-0];} break;
-case 14:
-# line 50 "cpy.y"
-{yyval = yypvt[-2] != yypvt[-0];} break;
-case 15:
-# line 52 "cpy.y"
-{yyval = yypvt[-2] & yypvt[-0];} break;
-case 16:
-# line 54 "cpy.y"
-{yyval = yypvt[-2] ^ yypvt[-0];} break;
-case 17:
-# line 56 "cpy.y"
-{yyval = yypvt[-2] | yypvt[-0];} break;
-case 18:
-# line 58 "cpy.y"
-{yyval = yypvt[-2] && yypvt[-0];} break;
-case 19:
-# line 60 "cpy.y"
-{yyval = yypvt[-2] || yypvt[-0];} break;
-case 20:
-# line 62 "cpy.y"
-{yyval = yypvt[-4] ? yypvt[-2] : yypvt[-0];} break;
-case 21:
-# line 64 "cpy.y"
-{yyval = yypvt[-0];} break;
-case 22:
-# line 66 "cpy.y"
-{yyval = yypvt[-0];} break;
-case 23:
-# line 69 "cpy.y"
-{yyval = -yypvt[-0];} break;
-case 24:
-# line 71 "cpy.y"
-{yyval = !yypvt[-0];} break;
-case 25:
-# line 73 "cpy.y"
-{yyval = ~yypvt[-0];} break;
-case 26:
-# line 75 "cpy.y"
-{yyval = yypvt[-1];} break;
-case 27:
-# line 77 "cpy.y"
-{yyval= yypvt[-1];} break;
-case 28:
-# line 79 "cpy.y"
-{yyval = yypvt[-0];} break;
-case 29:
-# line 81 "cpy.y"
-{yyval= yypvt[-0];} break;
- }
- goto yystack; /* stack new state and value */
-
- }
public / 43bsd.git / commitdiff