example1.l

词法分析器生成工具

/* scanner for a toy Pascal-like language */
     
%{
/* need this for the call to atof() below */
#include <math.h>
%}
     
     
%%
"\n"      printf("neezzez \n");

%%
main()
{
        yylex();
}
     
int yywrap()
{ 
	return 1;
}