Question

I have an assignment in a C programming class to output a poem with each word on a new line, using only the functions getchar and putchar. I have the majority of the program written, but I can’t figure out how to only have one new line for multiple spaces. For example, when there is more than one space there is a gap in the output, which I don’t want. Does anyone know how to correct this?

int main(int argc, const char * argv[])
{
    /* Variables declared */
    int iochar;

    /* While loop */
    while ((iochar = getchar() ) != EOF) {

        /* If statement to return on alphabetic characters, not puncuation */
        if (((iochar >= 'A') && (iochar <= 'Z')) || ((iochar >= 'a') && (iochar <= 'z'))) {
            putchar(iochar);
        }

        /* If statement to produce a new line when a space is detected */
        if (iochar == ' ') {
            putchar('\n');
        }
    }

    return 0;
}

Answer 1

You could store the previous character in another variable and only output a line break when the current character is a space AND the previous character was not a space.

By the way: what is supposed to happen with numbers in the input?