wildcmp.cpp

/* Wildcard matching.

*/

/**
 * Case sensitive wild card match with a string.
 * * matches any string or no character.
 * ? matches any single character.
 * anything else etc must match the character exactly.
 *
 * Returns if a match was found.
 */
bool wildMatch(const char *first, const char *second)
{
    // Code borrowed from
    // http://www.geeksforgeeks.org/wildcard-character-matching/
    if (*first == '\0' && *second == '\0') {
        return true;
    }

    if (*first == '*' && *(first+1) != '\0' && *second == '\0') {
        return false;
    }

    if (*first == '?' || *first == *second) {
        return wildMatch(first+1, second+1);
    }

    if (*first == '*') {
        return wildMatch(first+1, second) || wildMatch(first, second+1);
    }

    return false;
}