lex program to count word “India” from file

%{

  #include<stdio.h>

  int count=0;

%}

%%

[iI][nN][Dd][iI][Aa] count++;

.

\n

%%

int main()

{

  FILE *fp;

  fp=fopen("4.txt","r");

  if(fp==NULL)

  {

       printf("Error");

  return 0;

  }

  yyin=fp;

  yylex();

  printf("India is in file %d times",count);

}

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