mirror of https://github.com/lua/lua
924 lines
15 KiB
C
924 lines
15 KiB
C
# include "stdio.h"
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# define U(x) x
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# define NLSTATE yyprevious=YYNEWLINE
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# define BEGIN yybgin = yysvec + 1 +
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# define INITIAL 0
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# define YYLERR yysvec
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# define YYSTATE (yyestate-yysvec-1)
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# define YYOPTIM 1
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# define YYLMAX BUFSIZ
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# define output(c) putc(c,yyout)
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# define input() (((yytchar=yysptr>yysbuf?U(*--yysptr):getc(yyin))==10?(yylineno++,yytchar):yytchar)==EOF?0:yytchar)
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# define unput(c) {yytchar= (c);if(yytchar=='\n')yylineno--;*yysptr++=yytchar;}
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# define yymore() (yymorfg=1)
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# define ECHO fprintf(yyout, "%s",yytext)
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# define REJECT { nstr = yyreject(); goto yyfussy;}
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int yyleng; extern char yytext[];
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int yymorfg;
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extern char *yysptr, yysbuf[];
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int yytchar;
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FILE *yyin = {stdin}, *yyout = {stdout};
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extern int yylineno;
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struct yysvf {
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struct yywork *yystoff;
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struct yysvf *yyother;
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int *yystops;};
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struct yysvf *yyestate;
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extern struct yysvf yysvec[], *yybgin;
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#include <stdlib.h>
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#include <string.h>
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#include "opcode.h"
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#include "hash.h"
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#include "inout.h"
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#include "table.h"
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#include "y_tab.h"
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#undef input
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#undef unput
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static Input input;
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static Unput unput;
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void lua_setinput (Input fn)
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{
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input = fn;
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}
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void lua_setunput (Unput fn)
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{
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unput = fn;
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}
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char *lua_lasttext (void)
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{
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return yytext;
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}
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# define YYNEWLINE 10
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yylex(){
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int nstr; extern int yyprevious;
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while((nstr = yylook()) >= 0)
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yyfussy: switch(nstr){
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case 0:
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if(yywrap()) return(0); break;
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case 1:
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;
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break;
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case 2:
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{yylval.vInt = 1; return DEBUG;}
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break;
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case 3:
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{yylval.vInt = 0; return DEBUG;}
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break;
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case 4:
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lua_linenumber++;
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break;
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case 5:
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;
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break;
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case 6:
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return LOCAL;
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break;
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case 7:
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return IF;
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break;
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case 8:
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return THEN;
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break;
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case 9:
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return ELSE;
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break;
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case 10:
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return ELSEIF;
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break;
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case 11:
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return WHILE;
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break;
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case 12:
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return DO;
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break;
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case 13:
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return REPEAT;
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break;
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case 14:
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return UNTIL;
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break;
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case 15:
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{
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yylval.vWord = lua_nfile-1;
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return FUNCTION;
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}
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break;
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case 16:
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return END;
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break;
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case 17:
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return RETURN;
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break;
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case 18:
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return LOCAL;
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break;
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case 19:
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return NIL;
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break;
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case 20:
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return AND;
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break;
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case 21:
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return OR;
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break;
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case 22:
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return NOT;
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break;
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case 23:
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return NE;
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break;
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case 24:
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return LE;
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break;
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case 25:
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return GE;
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break;
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case 26:
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return CONC;
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break;
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case 27:
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case 28:
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{
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yylval.vWord = lua_findenclosedconstant (yytext);
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return STRING;
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}
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break;
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case 29:
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case 30:
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case 31:
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case 32:
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{
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yylval.vFloat = atof(yytext);
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return NUMBER;
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}
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break;
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case 33:
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{
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yylval.vWord = lua_findsymbol (yytext);
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return NAME;
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}
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break;
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case 34:
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return *yytext;
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break;
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case -1:
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break;
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default:
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fprintf(yyout,"bad switch yylook %d",nstr);
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} return(0); }
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/* end of yylex */
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int yyvstop[] = {
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0,
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1,
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0,
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1,
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0,
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34,
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0,
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1,
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34,
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0,
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4,
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0,
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34,
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0,
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34,
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0,
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34,
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0,
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34,
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0,
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29,
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34,
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0,
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34,
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0,
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34,
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0,
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33,
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34,
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0,
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33,
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34,
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0,
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33,
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34,
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0,
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33,
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34,
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0,
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33,
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34,
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0,
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33,
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34,
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0,
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33,
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34,
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0,
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33,
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34,
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0,
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33,
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34,
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0,
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33,
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34,
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0,
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33,
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34,
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0,
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33,
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34,
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0,
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33,
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34,
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0,
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34,
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0,
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34,
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0,
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1,
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0,
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27,
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0,
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28,
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0,
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5,
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0,
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26,
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0,
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30,
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0,
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29,
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0,
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29,
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0,
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24,
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0,
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25,
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0,
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33,
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0,
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33,
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0,
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12,
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33,
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0,
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33,
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0,
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33,
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0,
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33,
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0,
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7,
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33,
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0,
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33,
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0,
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33,
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0,
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33,
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0,
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21,
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33,
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0,
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33,
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0,
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33,
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0,
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33,
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0,
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33,
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0,
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23,
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0,
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29,
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30,
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0,
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31,
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0,
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20,
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33,
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0,
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33,
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0,
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16,
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33,
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0,
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33,
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0,
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33,
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0,
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19,
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33,
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0,
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22,
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33,
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0,
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33,
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0,
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33,
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0,
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33,
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0,
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33,
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0,
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33,
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0,
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32,
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0,
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9,
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33,
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0,
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33,
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0,
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33,
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0,
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33,
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0,
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33,
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0,
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8,
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33,
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0,
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33,
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0,
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33,
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0,
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31,
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32,
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0,
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33,
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0,
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33,
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0,
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6,
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18,
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33,
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0,
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33,
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0,
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33,
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0,
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14,
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33,
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0,
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11,
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33,
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0,
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10,
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33,
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0,
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33,
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0,
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13,
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33,
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0,
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17,
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33,
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0,
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2,
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0,
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33,
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0,
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15,
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33,
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0,
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3,
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0,
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0};
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# define YYTYPE char
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struct yywork { YYTYPE verify, advance; } yycrank[] = {
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0,0, 0,0, 1,3, 0,0,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 1,4, 1,5,
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6,29, 4,28, 0,0, 0,0,
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0,0, 0,0, 7,31, 0,0,
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6,29, 6,29, 0,0, 0,0,
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0,0, 0,0, 7,31, 7,31,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 0,0, 1,6,
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4,28, 0,0, 0,0, 0,0,
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1,7, 0,0, 0,0, 0,0,
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1,3, 6,30, 1,8, 1,9,
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0,0, 1,10, 6,29, 7,31,
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8,33, 0,0, 6,29, 0,0,
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7,32, 0,0, 0,0, 6,29,
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7,31, 1,11, 0,0, 1,12,
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2,27, 7,31, 1,13, 11,39,
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12,40, 1,13, 26,56, 0,0,
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0,0, 2,8, 2,9, 0,0,
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6,29, 0,0, 0,0, 6,29,
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0,0, 0,0, 7,31, 0,0,
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0,0, 7,31, 0,0, 0,0,
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2,11, 0,0, 2,12, 0,0,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 1,14, 0,0,
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0,0, 1,15, 1,16, 1,17,
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0,0, 22,52, 1,18, 18,47,
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23,53, 1,19, 42,63, 1,20,
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1,21, 25,55, 14,42, 1,22,
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15,43, 1,23, 1,24, 16,44,
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1,25, 16,45, 17,46, 19,48,
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21,51, 2,14, 20,49, 1,26,
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2,15, 2,16, 2,17, 24,54,
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20,50, 2,18, 44,64, 45,65,
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2,19, 46,66, 2,20, 2,21,
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27,57, 48,67, 2,22, 49,68,
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2,23, 2,24, 50,69, 2,25,
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52,70, 53,72, 27,58, 54,73,
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52,71, 9,34, 2,26, 9,35,
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9,35, 9,35, 9,35, 9,35,
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9,35, 9,35, 9,35, 9,35,
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9,35, 10,36, 55,74, 10,37,
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10,37, 10,37, 10,37, 10,37,
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10,37, 10,37, 10,37, 10,37,
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10,37, 57,75, 58,76, 64,80,
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66,81, 67,82, 70,83, 71,84,
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72,85, 73,86, 74,87, 10,38,
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10,38, 38,61, 10,38, 38,61,
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75,88, 76,89, 38,62, 38,62,
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38,62, 38,62, 38,62, 38,62,
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38,62, 38,62, 38,62, 38,62,
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80,92, 81,93, 13,41, 13,41,
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13,41, 13,41, 13,41, 13,41,
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13,41, 13,41, 13,41, 13,41,
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82,94, 83,95, 84,96, 10,38,
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10,38, 86,97, 10,38, 13,41,
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13,41, 13,41, 13,41, 13,41,
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13,41, 13,41, 13,41, 13,41,
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13,41, 13,41, 13,41, 13,41,
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13,41, 13,41, 13,41, 13,41,
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13,41, 13,41, 13,41, 13,41,
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13,41, 13,41, 13,41, 13,41,
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13,41, 87,98, 88,99, 60,79,
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60,79, 13,41, 60,79, 13,41,
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13,41, 13,41, 13,41, 13,41,
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13,41, 13,41, 13,41, 13,41,
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13,41, 13,41, 13,41, 13,41,
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13,41, 13,41, 13,41, 13,41,
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13,41, 13,41, 13,41, 13,41,
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13,41, 13,41, 13,41, 13,41,
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13,41, 33,33, 89,100, 60,79,
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60,79, 92,101, 60,79, 93,102,
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95,103, 33,33, 33,0, 96,104,
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99,105, 100,106, 102,107, 106,108,
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107,109, 35,35, 35,35, 35,35,
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35,35, 35,35, 35,35, 35,35,
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35,35, 35,35, 35,35, 108,110,
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0,0, 0,0, 0,0, 0,0,
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0,0, 0,0, 33,33, 0,0,
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0,0, 35,59, 35,59, 33,33,
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35,59, 0,0, 0,0, 33,33,
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0,0, 0,0, 0,0, 0,0,
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33,33, 0,0, 0,0, 0,0,
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0,0, 36,60, 36,60, 36,60,
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36,60, 36,60, 36,60, 36,60,
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36,60, 36,60, 36,60, 0,0,
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0,0, 33,33, 0,0, 0,0,
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33,33, 35,59, 35,59, 0,0,
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35,59, 36,38, 36,38, 59,77,
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36,38, 59,77, 0,0, 0,0,
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59,78, 59,78, 59,78, 59,78,
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59,78, 59,78, 59,78, 59,78,
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59,78, 59,78, 61,62, 61,62,
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61,62, 61,62, 61,62, 61,62,
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61,62, 61,62, 61,62, 61,62,
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0,0, 0,0, 0,0, 0,0,
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0,0, 36,38, 36,38, 0,0,
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36,38, 77,78, 77,78, 77,78,
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77,78, 77,78, 77,78, 77,78,
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77,78, 77,78, 77,78, 79,90,
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0,0, 79,90, 0,0, 0,0,
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79,91, 79,91, 79,91, 79,91,
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79,91, 79,91, 79,91, 79,91,
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79,91, 79,91, 90,91, 90,91,
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90,91, 90,91, 90,91, 90,91,
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90,91, 90,91, 90,91, 90,91,
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0,0};
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struct yysvf yysvec[] = {
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0, 0, 0,
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yycrank+-1, 0, yyvstop+1,
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yycrank+-28, yysvec+1, yyvstop+3,
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yycrank+0, 0, yyvstop+5,
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yycrank+4, 0, yyvstop+7,
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yycrank+0, 0, yyvstop+10,
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yycrank+-11, 0, yyvstop+12,
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yycrank+-17, 0, yyvstop+14,
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yycrank+7, 0, yyvstop+16,
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yycrank+107, 0, yyvstop+18,
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yycrank+119, 0, yyvstop+20,
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yycrank+6, 0, yyvstop+23,
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yycrank+7, 0, yyvstop+25,
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yycrank+158, 0, yyvstop+27,
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yycrank+4, yysvec+13, yyvstop+30,
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yycrank+5, yysvec+13, yyvstop+33,
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yycrank+11, yysvec+13, yyvstop+36,
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yycrank+5, yysvec+13, yyvstop+39,
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yycrank+5, yysvec+13, yyvstop+42,
|
|
yycrank+12, yysvec+13, yyvstop+45,
|
|
yycrank+21, yysvec+13, yyvstop+48,
|
|
yycrank+10, yysvec+13, yyvstop+51,
|
|
yycrank+4, yysvec+13, yyvstop+54,
|
|
yycrank+4, yysvec+13, yyvstop+57,
|
|
yycrank+21, yysvec+13, yyvstop+60,
|
|
yycrank+9, yysvec+13, yyvstop+63,
|
|
yycrank+9, 0, yyvstop+66,
|
|
yycrank+40, 0, yyvstop+68,
|
|
yycrank+0, yysvec+4, yyvstop+70,
|
|
yycrank+0, yysvec+6, 0,
|
|
yycrank+0, 0, yyvstop+72,
|
|
yycrank+0, yysvec+7, 0,
|
|
yycrank+0, 0, yyvstop+74,
|
|
yycrank+-280, 0, yyvstop+76,
|
|
yycrank+0, 0, yyvstop+78,
|
|
yycrank+249, 0, yyvstop+80,
|
|
yycrank+285, 0, yyvstop+82,
|
|
yycrank+0, yysvec+10, yyvstop+84,
|
|
yycrank+146, 0, 0,
|
|
yycrank+0, 0, yyvstop+86,
|
|
yycrank+0, 0, yyvstop+88,
|
|
yycrank+0, yysvec+13, yyvstop+90,
|
|
yycrank+10, yysvec+13, yyvstop+92,
|
|
yycrank+0, yysvec+13, yyvstop+94,
|
|
yycrank+19, yysvec+13, yyvstop+97,
|
|
yycrank+35, yysvec+13, yyvstop+99,
|
|
yycrank+27, yysvec+13, yyvstop+101,
|
|
yycrank+0, yysvec+13, yyvstop+103,
|
|
yycrank+42, yysvec+13, yyvstop+106,
|
|
yycrank+35, yysvec+13, yyvstop+108,
|
|
yycrank+30, yysvec+13, yyvstop+110,
|
|
yycrank+0, yysvec+13, yyvstop+112,
|
|
yycrank+36, yysvec+13, yyvstop+115,
|
|
yycrank+48, yysvec+13, yyvstop+117,
|
|
yycrank+35, yysvec+13, yyvstop+119,
|
|
yycrank+61, yysvec+13, yyvstop+121,
|
|
yycrank+0, 0, yyvstop+123,
|
|
yycrank+76, 0, 0,
|
|
yycrank+67, 0, 0,
|
|
yycrank+312, 0, 0,
|
|
yycrank+183, yysvec+36, yyvstop+125,
|
|
yycrank+322, 0, 0,
|
|
yycrank+0, yysvec+61, yyvstop+128,
|
|
yycrank+0, yysvec+13, yyvstop+130,
|
|
yycrank+78, yysvec+13, yyvstop+133,
|
|
yycrank+0, yysvec+13, yyvstop+135,
|
|
yycrank+81, yysvec+13, yyvstop+138,
|
|
yycrank+84, yysvec+13, yyvstop+140,
|
|
yycrank+0, yysvec+13, yyvstop+142,
|
|
yycrank+0, yysvec+13, yyvstop+145,
|
|
yycrank+81, yysvec+13, yyvstop+148,
|
|
yycrank+66, yysvec+13, yyvstop+150,
|
|
yycrank+74, yysvec+13, yyvstop+152,
|
|
yycrank+80, yysvec+13, yyvstop+154,
|
|
yycrank+78, yysvec+13, yyvstop+156,
|
|
yycrank+94, 0, 0,
|
|
yycrank+93, 0, 0,
|
|
yycrank+341, 0, 0,
|
|
yycrank+0, yysvec+77, yyvstop+158,
|
|
yycrank+356, 0, 0,
|
|
yycrank+99, yysvec+13, yyvstop+160,
|
|
yycrank+89, yysvec+13, yyvstop+163,
|
|
yycrank+108, yysvec+13, yyvstop+165,
|
|
yycrank+120, yysvec+13, yyvstop+167,
|
|
yycrank+104, yysvec+13, yyvstop+169,
|
|
yycrank+0, yysvec+13, yyvstop+171,
|
|
yycrank+113, yysvec+13, yyvstop+174,
|
|
yycrank+148, yysvec+13, yyvstop+176,
|
|
yycrank+133, 0, 0,
|
|
yycrank+181, 0, 0,
|
|
yycrank+366, 0, 0,
|
|
yycrank+0, yysvec+90, yyvstop+178,
|
|
yycrank+183, yysvec+13, yyvstop+181,
|
|
yycrank+182, yysvec+13, yyvstop+183,
|
|
yycrank+0, yysvec+13, yyvstop+185,
|
|
yycrank+172, yysvec+13, yyvstop+189,
|
|
yycrank+181, yysvec+13, yyvstop+191,
|
|
yycrank+0, yysvec+13, yyvstop+193,
|
|
yycrank+0, yysvec+13, yyvstop+196,
|
|
yycrank+189, 0, 0,
|
|
yycrank+195, 0, 0,
|
|
yycrank+0, yysvec+13, yyvstop+199,
|
|
yycrank+183, yysvec+13, yyvstop+202,
|
|
yycrank+0, yysvec+13, yyvstop+204,
|
|
yycrank+0, yysvec+13, yyvstop+207,
|
|
yycrank+0, 0, yyvstop+210,
|
|
yycrank+178, 0, 0,
|
|
yycrank+186, yysvec+13, yyvstop+212,
|
|
yycrank+204, 0, 0,
|
|
yycrank+0, yysvec+13, yyvstop+214,
|
|
yycrank+0, 0, yyvstop+217,
|
|
0, 0, 0};
|
|
struct yywork *yytop = yycrank+423;
|
|
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 ,
|
|
011 ,01 ,'"' ,01 ,01 ,01 ,01 ,047 ,
|
|
01 ,01 ,01 ,'+' ,01 ,'+' ,01 ,01 ,
|
|
'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,'0' ,
|
|
'0' ,'0' ,01 ,01 ,01 ,01 ,01 ,01 ,
|
|
01 ,'A' ,'A' ,'A' ,'D' ,'D' ,'A' ,'D' ,
|
|
'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
|
|
'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,'A' ,
|
|
'A' ,'A' ,'A' ,01 ,01 ,01 ,01 ,'A' ,
|
|
01 ,'A' ,'A' ,'A' ,'D' ,'D' ,'A' ,'D' ,
|
|
'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,
|
|
0,0,0,0,0,0,0,0,
|
|
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);
|
|
}
|