Question

I did the assigment but inside main

Write a C program (called counting.c) that counts the number of characters, words and lines read

from standard input (stdin) until EOF is reached. This means counting.c must contain a main

function along with other function.

- Assume the input is ASCII text of any length.

-Every byte read from stdin counts as a character except EOF.

- Words are defined as contiguous sequences of letters (a through z, A through Z) and the apostrophe ( ' which has the value 39 –check out the ASCII table) separated by any character outside these ranges.

- Hint: we may wish to create a function that determines whether or not a character is a letter that can be part of a word or not.

- Lines are defined as contiguous sequences of characters separated by newline characters ('\n').

- Characters beyond the final newline character will not be included in the line count.

- On reaching EOF, use this output command:

printf( "%lu %lu %lu\n", charCount, wordCount, lineCount );

where charCount, wordCount and lineCount are all of type unsigned long int. We may need these large types to handle long documents

#include <stdio.h>

int main(void){
    unsigned long int charCount = 0;
    unsigned long int wordCount = 0;
    unsigned long int lineCount = 0;

    int wrd = 1;

    char input;

    while( (input = getchar()) != EOF ){
        //counting characters
        charCount = charCount + 1;
        
        //counts lines
        if (input == '\n'){
            lineCount = lineCount + 1;
            wrd = 1;
        }
    
        //counting words
        //"a"" is 97, "z" is 122, "A" is 65, "Z" is 90, " ' " is 39
        if ((input >= 97 && input <= 122 )||(input >= 65 && input <= 90)||input == 39){
            if (wrd == 1){
                wordCount = wordCount + 1;
                wrd = 0;
            }
        }

        else{
            wrd = 1;
        }
    
    }  

    printf( "%lu %lu %lu\n", charCount, wordCount, lineCount );
    return 0;       

}

But i need to do this in another function which is then called in main, but i dont know how to do that