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- # include "stdio.h"
- # define U(x) x
- # define NLSTATE yyprevious=YYNEWLINE
- # define BEGIN yybgin = yysvec + 1 +
- # define INITIAL 0
- # define YYLERR yysvec
- # define YYSTATE (yyestate-yysvec-1)
- # define YYOPTIM 1
- # define YYLMAX BUFSIZ
- # define output(c) putc(c,yyout)
- # define input() (((yytchar=yysptr>yysbuf?U(*--yysptr):getc(yyin))==10?(yylineno++,yytchar):yytchar)==EOF?0:yytchar)
- # define unput(c) {yytchar= (c);if(yytchar=='\n')yylineno--;*yysptr++=yytchar;}
- # define yymore() (yymorfg=1)
- # define ECHO fprintf(yyout, "%s",yytext)
- # define REJECT { nstr = yyreject(); goto yyfussy;}
- int yyleng; extern char yytext[];
- int yymorfg;
- extern char *yysptr, yysbuf[];
- int yytchar;
- FILE *yyin = {stdin}, *yyout = {stdout};
- extern int yylineno;
- struct yysvf {
- struct yywork *yystoff;
- struct yysvf *yyother;
- int *yystops;};
- struct yysvf *yyestate;
- extern struct yysvf yysvec[], *yybgin;
-
- #include "rail.h"
- #include "gram.h"
-
- int lex_line; /* current input line */
- int copy; /* copy to output flag */
-
- #define COPY (copy && fputs(yytext,outf))
-
- extern YYSTYPE yylval;
-
- # define YYNEWLINE 10
- yylex(){
- int nstr; extern int yyprevious;
- while((nstr = yylook()) >= 0)
- yyfussy: switch(nstr){
- case 0:
- if(yywrap()) return(0); break;
- case 1:
- {
- COPY;
- yylval.id=lookup(yytext);
- return(IDENTIFIER);
- }
- case 2:
- {
- COPY;
- yylval.num=atoi(yytext);
- return(NUMBER);
- }
- case 3:
- {
- COPY;
- return(RAILI);
- }
- case 4:
- {
- COPY;
- return(RAILP);
- }
- case 5:
- {
- COPY;
- return(RAILT);
- }
- case 6:
- COPY;
- break;
- case 7:
- { COPY;
- return(RAILCR);
- }
- case 8:
- {
- COPY;
- return(CS);
- }
- case 9:
- {
- COPY;
- return(CS);
- }
- case 10:
- {
- COPY;
- yytext[yyleng-1]='\0';
- yylval.text=mcheck(strdup(yytext+1));
- return(STRING);
- }
- case 11:
- {
- COPY;
- yytext[yyleng-1]='\0';
- yylval.text=mcheck(strdup(yytext+1));
- return(ANNOT);
- }
- case 12:
- {
- COPY;
- yytext[yyleng-1]='\0';
- yylval.text=mcheck(strdup(yytext+1));
- return(STRING);
- }
- case 13:
- {
- COPY;
- }
- break;
- case 14:
- {
- COPY;
- lex_line++;
- }
- break;
- case 15:
- {
- COPY;
- return(yytext[0]);
- }
- case -1:
- break;
- default:
- fprintf(yyout,"bad switch yylook %d",nstr);
- } return(0); }
- /* end of yylex */
- int yyvstop[] = {
- 0,
-
- 15,
- 0,
-
- 13,
- 15,
- 0,
-
- 14,
- 0,
-
- 15,
- 0,
-
- 15,
- 0,
-
- 2,
- 15,
- 0,
-
- 1,
- 15,
- 0,
-
- 15,
- 0,
-
- 15,
- 0,
-
- 13,
- 0,
-
- 12,
- 0,
-
- 10,
- 0,
-
- 2,
- 0,
-
- 1,
- 0,
-
- 11,
- 0,
-
- 9,
- 0,
-
- 8,
- 9,
- 0,
-
- 7,
- 9,
- 0,
-
- 8,
- 9,
- 0,
-
- 8,
- 9,
- 0,
-
- 8,
- 0,
-
- 8,
- 0,
-
- 8,
- 0,
-
- 6,
- 8,
- 0,
-
- 8,
- 0,
-
- 8,
- 0,
-
- 8,
- 0,
-
- 3,
- 8,
- 0,
-
- 4,
- 8,
- 0,
-
- 5,
- 8,
- 0,
- 0};
- # define YYTYPE char
- struct yywork { YYTYPE verify, advance; } yycrank[] = {
- 0,0, 0,0, 1,3, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 6,13, 0,0, 1,4, 1,5,
- 7,15, 4,12, 0,0, 0,0,
- 6,0, 6,0, 0,0, 0,0,
- 7,0, 7,0, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 1,4, 0,0, 1,6,
- 4,12, 13,0, 13,0, 6,13,
- 1,7, 6,14, 0,0, 7,15,
- 0,0, 7,15, 6,13, 1,3,
- 0,0, 1,8, 7,16, 15,0,
- 15,0, 6,13, 0,0, 6,13,
- 0,0, 7,15, 0,0, 7,15,
- 19,0, 19,0, 0,0, 0,0,
- 0,0, 1,3, 1,9, 0,0,
- 0,0, 0,0, 0,0, 6,13,
- 6,13, 0,0, 0,0, 7,15,
- 7,15, 8,17, 8,17, 8,17,
- 8,17, 8,17, 8,17, 8,17,
- 8,17, 8,17, 8,17, 0,0,
- 0,0, 0,0, 31,32, 0,0,
- 1,10, 1,11, 1,3, 0,0,
- 1,9, 2,10, 2,11, 0,0,
- 6,13, 0,0, 6,13, 0,0,
- 7,15, 9,18, 7,15, 9,18,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 0,0, 0,0, 0,0,
- 24,27, 25,28, 0,0, 0,0,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 9,18, 27,29, 28,30,
- 30,31, 0,0, 9,18, 0,0,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 9,18, 9,18, 9,18,
- 9,18, 9,18, 10,19, 0,0,
- 0,0, 32,33, 11,21, 0,0,
- 0,0, 0,0, 10,0, 10,0,
- 32,34, 0,0, 11,0, 11,0,
- 32,35, 0,0, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 10,19, 0,0, 10,19,
- 0,0, 11,0, 0,0, 11,21,
- 10,19, 0,0, 0,0, 0,0,
- 11,21, 0,0, 0,0, 10,19,
- 0,0, 10,19, 0,0, 11,21,
- 0,0, 11,21, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 10,19, 10,19, 0,0,
- 0,0, 11,22, 11,22, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 0,0, 10,20, 0,0,
- 10,19, 11,23, 11,21, 0,0,
- 11,21, 0,0, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 11,24, 0,0, 11,25,
- 22,26, 22,26, 22,26, 22,26,
- 22,26, 22,26, 22,26, 22,26,
- 22,26, 22,26, 22,26, 22,26,
- 22,26, 22,26, 22,26, 22,26,
- 22,26, 22,26, 22,26, 22,26,
- 22,26, 22,26, 22,26, 22,26,
- 22,26, 22,26, 22,26, 0,0,
- 0,0, 0,0, 0,0, 0,0,
- 0,0, 22,26, 22,26, 22,26,
- 22,26, 22,26, 22,26, 22,26,
- 22,26, 22,26, 22,26, 22,26,
- 22,26, 22,26, 22,26, 22,26,
- 22,26, 22,26, 22,26, 22,26,
- 22,26, 22,26, 22,26, 22,26,
- 22,26, 22,26, 22,26, 0,0,
- 0,0};
- struct yysvf yysvec[] = {
- 0, 0, 0,
- yycrank+-1, 0, 0,
- yycrank+-6, yysvec+1, 0,
- yycrank+0, 0, yyvstop+1,
- yycrank+4, 0, yyvstop+3,
- yycrank+0, 0, yyvstop+6,
- yycrank+-7, 0, yyvstop+8,
- yycrank+-11, 0, yyvstop+10,
- yycrank+29, 0, yyvstop+12,
- yycrank+59, 0, yyvstop+15,
- yycrank+-181, 0, yyvstop+18,
- yycrank+-185, 0, yyvstop+20,
- yycrank+0, yysvec+4, yyvstop+22,
- yycrank+-28, yysvec+6, 0,
- yycrank+0, 0, yyvstop+24,
- yycrank+-42, yysvec+7, 0,
- yycrank+0, 0, yyvstop+26,
- yycrank+0, yysvec+8, yyvstop+28,
- yycrank+0, yysvec+9, yyvstop+30,
- yycrank+-51, yysvec+10, 0,
- yycrank+0, 0, yyvstop+32,
- yycrank+0, 0, yyvstop+34,
- yycrank+236, 0, yyvstop+36,
- yycrank+0, 0, yyvstop+39,
- yycrank+23, yysvec+22, yyvstop+42,
- yycrank+24, yysvec+22, yyvstop+45,
- yycrank+0, yysvec+22, yyvstop+48,
- yycrank+36, yysvec+22, yyvstop+50,
- yycrank+46, yysvec+22, yyvstop+52,
- yycrank+0, yysvec+22, yyvstop+54,
- yycrank+44, yysvec+22, yyvstop+57,
- yycrank+26, yysvec+22, yyvstop+59,
- yycrank+80, yysvec+22, yyvstop+61,
- yycrank+0, yysvec+22, yyvstop+63,
- yycrank+0, yysvec+22, yyvstop+66,
- yycrank+0, yysvec+22, yyvstop+69,
- 0, 0, 0};
- struct yywork *yytop = yycrank+358;
- struct yysvf *yybgin = yysvec+1;
- char yymatch[] = {
- 00 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
- 01 ,011 ,012 ,01 ,01 ,01 ,01 ,01 ,
- 01 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
- 01 ,01 ,01 ,01 ,01 ,01 ,01 ,01 ,
- 040 ,01 ,'"' ,01 ,01 ,01 ,01 ,047 ,
- 01 ,01 ,01 ,01 ,01 ,01 ,'.' ,01 ,
- '0' ,'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,
- '0' ,'0' ,01 ,01 ,01 ,01 ,01 ,01 ,
- '@' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
- 'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
- 'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
- 'A' ,'A' ,'A' ,01 ,01 ,']' ,01 ,'_' ,
- 01 ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
- 'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
- 'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
- 'A' ,'A' ,'A' ,01 ,01 ,01 ,01 ,01 ,
- 0};
- char yyextra[] = {
- 0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,
- 0};
- #ifndef lint
- static char ncform_sccsid[] = "@(#)ncform 1.6 88/02/08 SMI"; /* from S5R2 1.2 */
- #endif
-
- int yylineno =1;
- # define YYU(x) x
- # define NLSTATE yyprevious=YYNEWLINE
- char yytext[YYLMAX];
- struct yysvf *yylstate [YYLMAX], **yylsp, **yyolsp;
- char yysbuf[YYLMAX];
- char *yysptr = yysbuf;
- int *yyfnd;
- extern struct yysvf *yyestate;
- int yyprevious = YYNEWLINE;
- yylook(){
- register struct yysvf *yystate, **lsp;
- register struct yywork *yyt;
- struct yysvf *yyz;
- int yych, yyfirst;
- struct yywork *yyr;
- # ifdef LEXDEBUG
- int debug;
- # endif
- char *yylastch;
- /* start off machines */
- # ifdef LEXDEBUG
- debug = 0;
- # endif
- yyfirst=1;
- if (!yymorfg)
- yylastch = yytext;
- else {
- yymorfg=0;
- yylastch = yytext+yyleng;
- }
- for(;;){
- lsp = yylstate;
- yyestate = yystate = yybgin;
- if (yyprevious==YYNEWLINE) yystate++;
- for (;;){
- # ifdef LEXDEBUG
- if(debug)fprintf(yyout,"state %d\n",yystate-yysvec-1);
- # endif
- yyt = yystate->yystoff;
- if(yyt == yycrank && !yyfirst){ /* may not be any transitions */
- yyz = yystate->yyother;
- if(yyz == 0)break;
- if(yyz->yystoff == yycrank)break;
- }
- *yylastch++ = yych = input();
- yyfirst=0;
- tryagain:
- # ifdef LEXDEBUG
- if(debug){
- fprintf(yyout,"char ");
- allprint(yych);
- putchar('\n');
- }
- # endif
- yyr = yyt;
- if ( (int)yyt > (int)yycrank){
- yyt = yyr + yych;
- if (yyt <= yytop && yyt->verify+yysvec == yystate){
- if(yyt->advance+yysvec == YYLERR) /* error transitions */
- {unput(*--yylastch);break;}
- *lsp++ = yystate = yyt->advance+yysvec;
- goto contin;
- }
- }
- # ifdef YYOPTIM
- else if((int)yyt < (int)yycrank) { /* r < yycrank */
- yyt = yyr = yycrank+(yycrank-yyt);
- # ifdef LEXDEBUG
- if(debug)fprintf(yyout,"compressed state\n");
- # endif
- yyt = yyt + yych;
- if(yyt <= yytop && yyt->verify+yysvec == yystate){
- if(yyt->advance+yysvec == YYLERR) /* error transitions */
- {unput(*--yylastch);break;}
- *lsp++ = yystate = yyt->advance+yysvec;
- goto contin;
- }
- yyt = yyr + YYU(yymatch[yych]);
- # ifdef LEXDEBUG
- if(debug){
- fprintf(yyout,"try fall back character ");
- allprint(YYU(yymatch[yych]));
- putchar('\n');
- }
- # endif
- if(yyt <= yytop && yyt->verify+yysvec == yystate){
- if(yyt->advance+yysvec == YYLERR) /* error transition */
- {unput(*--yylastch);break;}
- *lsp++ = yystate = yyt->advance+yysvec;
- goto contin;
- }
- }
- if ((yystate = yystate->yyother) && (yyt= yystate->yystoff) != yycrank){
- # ifdef LEXDEBUG
- if(debug)fprintf(yyout,"fall back to state %d\n",yystate-yysvec-1);
- # endif
- goto tryagain;
- }
- # endif
- else
- {unput(*--yylastch);break;}
- contin:
- # ifdef LEXDEBUG
- if(debug){
- fprintf(yyout,"state %d char ",yystate-yysvec-1);
- allprint(yych);
- putchar('\n');
- }
- # endif
- ;
- }
- # ifdef LEXDEBUG
- if(debug){
- fprintf(yyout,"stopped at %d with ",*(lsp-1)-yysvec-1);
- allprint(yych);
- putchar('\n');
- }
- # endif
- while (lsp-- > yylstate){
- *yylastch-- = 0;
- if (*lsp != 0 && (yyfnd= (*lsp)->yystops) && *yyfnd > 0){
- yyolsp = lsp;
- if(yyextra[*yyfnd]){ /* must backup */
- while(yyback((*lsp)->yystops,-*yyfnd) != 1 && lsp > yylstate){
- lsp--;
- unput(*yylastch--);
- }
- }
- yyprevious = YYU(*yylastch);
- yylsp = lsp;
- yyleng = yylastch-yytext+1;
- yytext[yyleng] = 0;
- # ifdef LEXDEBUG
- if(debug){
- fprintf(yyout,"\nmatch ");
- sprint(yytext);
- fprintf(yyout," action %d\n",*yyfnd);
- }
- # endif
- return(*yyfnd++);
- }
- unput(*yylastch);
- }
- if (yytext[0] == 0 /* && feof(yyin) */)
- {
- yysptr=yysbuf;
- return(0);
- }
- yyprevious = yytext[0] = input();
- if (yyprevious>0)
- output(yyprevious);
- yylastch=yytext;
- # ifdef LEXDEBUG
- if(debug)putchar('\n');
- # endif
- }
- }
- yyback(p, m)
- int *p;
- {
- if (p==0) return(0);
- while (*p)
- {
- if (*p++ == m)
- return(1);
- }
- return(0);
- }
- /* the following are only used in the lex library */
- yyinput(){
- return(input());
- }
- yyoutput(c)
- int c; {
- output(c);
- }
- yyunput(c)
- int c; {
- unput(c);
- }
-