%{
#include <stdio.h>
#include <ctype.h>
 
int vowel_count = 0;       // Counter for vowels
int consonant_count = 0;   // Counter for consonants
 
// Helper function to check if a character is a vowel
int is_vowel(char ch) {
    ch = tolower(ch); // Convert to lowercase for uniformity
    return (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u');
}
%}
 
%%
 
[a-zA-Z] {
    if (is_vowel(yytext[0])) {
        vowel_count++;
    } else {
        consonant_count++;
    }
}
 
[ \t\n] {
    // Ignore whitespace characters
}
 
. {
    // Ignore any other non-alphabetic characters
}
 
%%
 
int main() {
    printf("Enter a string:\n");
    yylex(); // Start lexical analysis
 
    printf("\nVowel Count: %d\n", vowel_count);
    printf("Consonant Count: %d\n", consonant_count);
 
    return 0;
}
 
int yywrap() {
    return 1; // Indicate end of input
}

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