private static boolean isKeyWorkdStart(Character character) {
        boolean result = false;
        for (String keyword : KEYWORDS) {
            result = character.equals(keyword.charAt(0)) || result;
        }
        return result;
    }
whether the character is the first char of keyword

@param character character
@return true or false
inlong-common/src/main/java/org/apache/inlong/common/util/MaskDataUtils.java