Program to count the number of identifiers in a c file

[seminar class]

Objective
Program to count the number of identifiers in a c file
Program:

Code:

%{
      #include<stdio.h>
      int id=0, i;
%}
%%
"int " ||
"float " ||
"double " ||
"char " ||
"bool "                       {
                              i = 0;    
                              while (yytext[i] != ';')
                              {
                                    if(yytext[i] == ',')
                                          id++;
                              i++;
                              }    
                              id++;
                              }
.                             ;
%%
int main(int argc, char *argv[])
{      yyin = fopen(argv[1],"r");
      yylex();
      printf("No. of identifiers = %d\n",id);
}