/* File: hello.l
   Basic conversation in lex.
*/  

/* Begin definitions section */

%{   /* Begin included C code */

#include <stdio.h>

%}   /* End included C code */


/* Rules section follows */
%%
^Hello\n                { printf("Hi!\n") ; }
^"How are you doing?\n" { printf("Good.\n") ; }
^"Hey there!\n"         { printf("Hey yourself!\n") ; }
^quit\n                 { return ; }
^.*\n                   { printf("[BLINK, BLINK]\n") ; }
%%


/* Begin user subroutines */

main() {

   yylex() ;
}