Function mungspaces

src/hacklib.c:141–160

remove excess whitespace from a string buffer (in place) */

/* remove excess whitespace from a string buffer (in place) */
char *
mungspaces(char *bp)
{
    char c, *p, *p2;
    boolean was_space = TRUE;

    for (p = p2 = bp; (c = *p) != '\0'; p++) {
        if (c == '\n')
            break; /* treat newline the same as end-of-string */
        if (c == '\t')
            c = ' ';
        if (c != ' ' || !was_space)
            *p2++ = c;
        was_space = (c == ' ');
    }
    if (was_space && p2 > bp)
        p2--;
    *p2 = '\0';
    return bp;
}

/* skip leading whitespace; remove trailing whitespace, in place */
char *