WTF1.scala

val content = "我是陶喆\n我是游鍚堃\n這是測試"

println (normalizeString(content))

def normalizeString (string: String) = string.flatMap(escapeNonBig5Character _)

def escapeNonBig5Character (character: Char): String = {

    def isNotBig5 (character: Char) = character.toString.getBytes("Big5")(0) == '?' &&
                                      character != '?'

    isNotBig5(character) match {
        case true  => "&#%d;" format(character.toInt)   // 不是 Big5 的字元就轉成字元參引
        case false => character.toString                // 不然的話維持原樣
    }
}