private static boolean keywordStartAtRightPosition(int keywordStart, int pos) {
        return keywordStart >= 0 && (keywordStart == pos || keywordStart == pos + 1);
    }
whether keyword start at right position

@param keywordStart the start position of keyword
@param pos the right position
@return true or false
inlong-common/src/main/java/org/apache/inlong/common/util/MaskDataUtils.java