%{
#include <stdio.h>
int wc = 0, cc = 0, lc = 0, bc = 0;
char infile[25];
%}
 
%%
\n              { lc++; cc++; }
[ \t]+          { bc += yyleng; cc += yyleng; }
[^ \t\n]+       { wc++; cc += yyleng; }
%%
 
int main()
{
    printf("Read the Input File Name:\n");
    scanf("%s", infile);
 
    yyin = fopen(infile, "r");
    if (!yyin)
    {
        printf("Cannot open file\n");
        return 1;
    }
 
    yylex();
    fclose(yyin);
 
    printf("No. of Chars : %d\n", cc);
    printf("No. of Words : %d\n", wc);
    printf("No. of Lines : %d\n", lc);
    printf("No. of Blanks: %d\n", bc);
 
    return 0;
}
 
int yywrap()
{
    return 1;
}
 

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