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#include "lexlib.h"
yyless(n)
{
	if (n < 0)
		return;
	if (yyleng-n+qct(ll_tq) > QSIZE)
		error(inpovf);
	while (yyleng > n) {
		qug(ll_tq, yytext[--yyleng]);
		if (ll_tlen)
			--ll_tlen;
	}
	if (yyleng)
		ll_lc = yytext[yyleng-1];
	yytext[yyleng] = '\0';
}

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