ignoring punctuations and spaces when working with arrays

how do you ignore spaces and punctuations when working with arrays?

Again an incomplete question. :)
What I interpreted is that you want to eat some punctuation characters from the array of characters provided to you by the user. You can define a function like below to do that. I am assuming you only want to delete one character, although you can modify the code easily to delete all punctuation characters.

Code:

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void eatchar(char* arr,char ch) {
    int i = 0, j = 0; // to and from indexes
    while(*(arr + i) = *(arr + j++)) {
        if(*(arr + i) != ch) ++i;
    }
}

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