minix/external/bsd/flex/dist/examples/manual/unput.lex
2012-06-18 10:54:47 +00:00

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Text

/*
* unput.l : An example of what *not*
* to do with unput().
*/
%{
#include <stdio.h>
void putback_yytext(void);
%}
%%
foobar putback_yytext();
raboof putback_yytext();
%%
void putback_yytext(void)
{
int i;
int l = strlen(yytext);
char buffer[YY_BUF_SIZE];
strcpy(buffer,yytext);
printf("Got: %s\n",yytext);
for(i=0; i<l; i++){
unput(buffer[i]);
}
}