protected static boolean matchPattern()

in src/main/java/com/ql/util/express/instruction/op/OperatorLike.java [28:51]

• 24 lines of code
• 9 McCabe index (conditional complexity)

    protected static boolean matchPattern(String s, String pattern) {
        int sPointer = 0, pPointer = 0;
        int sLen = s.length(), pLen = pattern.length();
        int sRecall = -1, pRecall = -1;
        while (sPointer < sLen) {
            if (pPointer < pLen && (s.charAt(sPointer) == pattern.charAt(pPointer))) {
                sPointer++;
                pPointer++;
            } else if (pPointer < pLen && pattern.charAt(pPointer) == '%') {
                sRecall = sPointer;
                pRecall = pPointer;
                pPointer++;
            } else if (sRecall >= 0) {
                sPointer = ++sRecall;
                pPointer = pRecall + 1;
            } else {
                return false;
            }
        }
        while (pPointer < pLen && pattern.charAt(pPointer) == '%') {
            pPointer++;
        }
        return pPointer == pLen;
    }