public static boolean findMatchWithWildcard()

in common/src/main/java/flex/messaging/util/StringUtils.java [64:134]
56 lines of code
20 McCabe index (conditional complexity)

    public static boolean findMatchWithWildcard(char[] src, char[] pat) {
        if (src == null || pat == null)
            return false;

        // we consider an empty pattern to be a don't-match-anything pattern
        if (pat.length == 0)
            return false;

        if (src.length == 0)
            return (pat.length == 0 || (pat.length == 1 && (pat[0] == '*' || pat[0] == '?')));

        boolean star = false;

        int srcLen = src.length;
        int patLen = pat.length;
        int srcIdx = 0;
        int patIdx = 0;

        for (; srcIdx < srcLen; srcIdx++) {
            if (patIdx == patLen) {
                if (patLen < (srcLen - srcIdx))
                    patIdx = 0; //Start the search again
                else
                    return false;
            }

            char s = src[srcIdx];
            char m = pat[patIdx];

            switch (m) {
                case '*':
                    // star on the end
                    if (patIdx == pat.length - 1)
                        return true;
                    star = true;
                    ++patIdx;
                    break;

                case '?':
                    ++patIdx;
                    break;

                default:
                    if (s != m) {
                        if (!star) {
                            if (patLen < (srcLen - srcIdx))
                                patIdx = 0; //Start the search again
                            else
                                return false;
                        }
                    } else {
                        star = false;
                        ++patIdx;
                    }
                    break;
            }
        }

        if (patIdx < patLen) {
            //read off the rest of the pattern and make sure it's all wildcard
            for (; patIdx < patLen; patLen++) {
                if (pat[patIdx] != '*') {
                    return false;
                }
            }
            return true;
        }


        return !star;
    }