/*
File: woof2.l
In this version, yylex() returns a value that gets checked
in the main() function's while loop.
*/

%option noyywrap

%{

#include <stdio.h>

%}

%%

<<EOF>>    { printf("\nWoof! are we done talking?\n"); return 0 ; }
treat      { printf("\n!!!%s!!! Woof! yummy!\n", yytext) ; return 1 ;}
walk       { printf("\n!!!%s!!! Woof! where's the leash?\n", yytext) ; return 1 ;}
dinner     { printf("\n!!!%s!!! Woof! I'm hungry!\n", yytext) ; return 1; }
good\ dog  { printf("\n!!!%s!!! Woof! talking about me!\n", yytext) ; return 1 ;}
\n         { printf("\n") ; }
.          { printf(".") ; }

%%

int main(int argc, char **argv)
{
  while (yylex()) {
     printf("== pat, pat, nice doggy == \n") ;
  }

  return 0 ;
}