yylook()
#endif
{
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;
}
#ifndef __cplusplus
*yylastch++ = yych = input();
#else
*yylastch++ = yych = lex_input();
#endif
if(yylastch > &yytext[YYLMAX]) {
fprintf(yyout,"Input string too long, limit %d\n",YYLMAX);
exit(1);
}
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;
if(lsp > &yylstate[YYLMAX]) {
fprintf(yyout,"Input string too long, limit %d\n",YYLMAX);
exit(1);
}
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;
if(lsp > &yylstate[YYLMAX]) {
fprintf(yyout,"Input string too long, limit %d\n",YYLMAX);
exit(1);
}
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;
if(lsp > &yylstate[YYLMAX]) {
fprintf(yyout,"Input string too long, limit %d\n",YYLMAX);
exit(1);
}
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);
}
#ifndef __cplusplus
yyprevious = yytext[0] = input();
if (yyprevious>0)
output(yyprevious);
#else
yyprevious = yytext[0] = lex_input();
if (yyprevious>0)
lex_output(yyprevious);
#endif
yylastch=yytext;
# ifdef LEXDEBUG
if(debug)putchar('\n');
# endif
}
}
yylook()
{
register struct yysvf *yystate, **lsp;
register struct yywork *yyt;
struct yysvf *yyz;
int yych;
struct yywork *yyr;
/*
# ifdef LEXDEBUG
int debug;
# endif
*/
char *yylastch;
/* start off machines */
/*
# ifdef LEXDEBUG
debug = 1;
# else
debug = 0;
# endif
*/
# ifdef LEXDEBUG
#define debug 1
# else
#define debug 0
#endif
#ifdef YYDEBUG
fprintf(yyout,"yylook()\n");
# endif
if (!yymorfg)
yylastch = yytext;
else
{
yymorfg=0;
yylastch = yytext+yyleng;
}
#ifdef YYDEBUG
fprintf(yyout,"yylook: yymorfg=%d\n",yymorfg);
# endif
for(;;)
{
#ifdef YYDEBUG
fprintf(yyout,"yylook: (outer loop)");
printchar("yyprevious",yyprevious);
# endif
lsp = yylstate;
yyestate = yystate = yybgin;
if (yyprevious==YYNEWLINE) yystate++;
testbreak=0;
for (;;)
{
# ifdef LEXDEBUG
fprintf(yyout,"yylook: (inner loop) state %d\n",yystate-yysvec-1);
# endif
if(testbreak==5)
{
fprintf(yyout,"yylook: error, aborted after 5 loops\n");
exit(0);
}
testbreak++;
yyt = yystate->yystoff;
/* fprintf(yyout,"yylook: yyt offs: %02x\n",yyt-yycrank); */
if(yyt == yycrank)
{ /* may not be any transitions */
yyz = yystate->yyother;
if(yyz == 0)break;
if(yyz->yystoff == yycrank)break;
}
*yylastch++ = yych = input();
# ifdef LEXDEBUG
fprintf(yyout,"yylook: input ");
printchar("yych",yych);
# endif
tryagain:
# ifdef LEXDEBUG
/* fprintf(yyout,"yylook: yych=%02x yymatch[yych]=%02x\n",yych,yymatch[yych]); */
fprintf(yyout,"yylook: tryagain\n");
# endif
yyr = yyt;
/* fprintf(yyout,"yylook: yyr offs: %02x\n",yyr-yycrank); */
if ( yyt > yycrank)
{
yyt = yyr + yych;
if (yyt <= yytop && yyt->verify+yysvec == yystate)
{
if(yyt->advance+yysvec == YYLERR) /* error transitions */
{
# ifdef LEXDEBUG
fprintf(yyout,"yylook: unput (1) ");
printchar("*yylastch",*yylastch);
# endif
unput(*--yylastch);
break;
}
*lsp++ = yystate = yyt->advance+yysvec;
# ifdef LEXDEBUG
fprintf(yyout,"yylook: continue (1)\n");
# endif
goto contin;
}
# ifdef LEXDEBUG
fprintf(yyout,"yylook: ( yyt > yycrank)\n");
# endif
}
# ifdef YYOPTIM
else if(yyt < yycrank) /* r < yycrank */
{
yyt = yyr = yycrank+(yycrank-yyt);
# ifdef LEXDEBUG
fprintf(yyout,"yylook: compressed state\n");
# endif
yyt = yyt + yych;
if(yyt <= yytop && yyt->verify+yysvec == yystate)
{
# ifdef LEXDEBUG
fprintf(yyout,"yylook: (1)\n");
# endif
if(yyt->advance+yysvec == YYLERR) /* error transitions */
{
# ifdef LEXDEBUG
fprintf(yyout,"yylook: unput (2) ");
printchar("*yylastch",*yylastch);
# endif
unput(*--yylastch);
break;
}
*lsp++ = yystate = yyt->advance+yysvec;
# ifdef LEXDEBUG
fprintf(yyout,"yylook: continue (2)\n");
# endif
goto contin;
}
# ifdef LEXDEBUG
/*
fprintf(yyout,"yylook: yych=%02x yymatch[yych]=%02x\n",yych,yymatch[yych]);
fprintf(yyout,"yylook: yyt offs: %02x\n",yyt-yycrank);
fprintf(yyout,"yylook: yyr offs: %02x\n",yyr-yycrank);
*/
# endif
yyt = yyr + YYU(yymatch[yych]);
# ifdef LEXDEBUG
/*
fprintf(yyout,"yylook: yyt offs: %02x <= yytop offs: %02x\n",yyt-yycrank,yytop-yycrank);
fprintf(yyout,"yylook: yyt->verify=%04x yysvec=%04x (yyt->verify+yysvec)=%04x == yystate=%04x\n",yyt->verify,yysvec,(yyt->verify+yysvec),yystate);
*/
fprintf(yyout,"yylook: try fall back character\n");
# endif
if(yyt <= yytop && yyt->verify+yysvec == yystate)
{
# ifdef LEXDEBUG
fprintf(yyout,"yylook: (2a)\n");
# endif
if(yyt->advance+yysvec == YYLERR) /* error transition */
{
# ifdef LEXDEBUG
/* cc65 compiles this ?! fprintf(yyout,"yylook: unput (3) ",); */
fprintf(yyout,"yylook: unput (3) ");
printchar("*yylastch",*yylastch);
# endif
unput(*--yylastch);
break;
}
*lsp++ = yystate = yyt->advance+yysvec;
# ifdef LEXDEBUG
/* fprintf(yyout,"yylook: yyt offs: %02x yyt->advance=%d\n",yyt-yycrank,yyt->advance); */
fprintf(yyout,"yylook: continue (3)\n");
# endif
goto contin;
}
# ifdef LEXDEBUG
fprintf(yyout,"yylook: (2)\n");
# endif
}
if ((yystate = yystate->yyother) && (yyt= yystate->yystoff) != yycrank)
{
# ifdef LEXDEBUG
fprintf(yyout,"yylook: fall back to state %d\n",yystate-yysvec-1);
# endif
goto tryagain;
}
# endif
else
{
# ifdef LEXDEBUG
fprintf(yyout,"yylook: unput (4) ");
printchar("*yylastch",*yylastch);
# endif
unput(*--yylastch);
break;
}
contin:
# ifdef LEXDEBUG
fprintf(yyout,"yylook: contin state=%d\n",yystate-yysvec-1);
# endif
;
}
# ifdef LEXDEBUG
if((*(lsp-1)-yysvec-1)<0)
{
fprintf(yyout,"yylook: stopped (end)\n");
}
else
{
fprintf(yyout,"yylook: stopped at %d with\n",*(lsp-1)-yysvec-1);
}
# 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--;
# ifdef LEXDEBUG
fprintf(yyout,"yylook: unput (5) ");
printchar("*yylastch",*yylastch);
# endif
unput(*yylastch--);
}
}
yyprevious = YYU(*yylastch);
yylsp = lsp;
yyleng = yylastch-yytext+1;
yytext[yyleng] = 0;
# ifdef LEXDEBUG
fprintf(yyout,"\nyylook: match action %d\n",*yyfnd);
fprintf(yyout,"yylook: done loops: %d\n",testbreak);
# endif
return(*yyfnd++);
}
unput(*yylastch);
}
if (yytext[0] == 0 /* && feof(yyin) */)
{
yysptr=yysbuf;
# ifdef LEXDEBUG
fprintf(yyout,"yylook: done loops: %d\n",testbreak);
# endif
return(0);
}
yyprevious = yytext[0] = input();
# ifdef LEXDEBUG
fprintf(yyout,"yylook: input ");
printchar("yyprevious",yyprevious);
# endif
if (yyprevious>0)
output(yyprevious);
yylastch=yytext;
# ifdef LEXDEBUG
/* if(debug)putchar('\n'); */
# endif
}
# ifdef LEXDEBUG
fprintf(yyout,"yylook: done loops: %d\n",testbreak);
fprintf(yyout,"yylook: return <void>\n");
# endif
}