迅速从阿拉伯语中删除变音符号

Question

我试图删除阿拉伯语文字变音符号。例如，我需要将此َب转换为此ب，这是我的代码：

if (text != "") {
    for char in text! {
        print(char)
        print(char.unicodeScalars.first?.value)
        if allowed.contains("\(char)"){
            newText.append(char)
        }
    }
    self.textView.text = text!
} else {
//            TODO :
//            show an alert
    print("uhhh no way")
}

我试过这些解决方案，但没有运气：

How to remove diacritics from a String in Swift?

NSString : easy way to remove UTF-8 accents from a string?

Answer 1

您可以使用Regex，尝试此代码

 let myString = "الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ"
        let regex = try! NSRegularExpression(pattern: "[\\u064b-\\u064f\\u0650-\\u0652]", options: NSRegularExpression.Options.caseInsensitive)
        let range = NSMakeRange(0, myString.unicodeScalars.count)
        let modString = regex.stringByReplacingMatches(in: myString, options: [], range: range, withTemplate: "")
        print(modString)

赞美真主，世界之王

Answer 2

你可以使用CFStringTransform和kCFStringTransformStripCombiningMarks

删除(accents or diacritics)

        let original = "ََب"
        let mutableString = NSMutableString(string: original) as CFMutableString
        CFStringTransform(mutableString, nil, kCFStringTransformStripCombiningMarks, Bool(truncating: 0))
        let normalized = (mutableString as NSMutableString).copy() as! NSString

        print(normalized)

CFStringTransform

包含通过删除组合标记的字符串转换的常量。

kCFStringTransformStripCombiningMarks

用于剥离组合标记（重音符号或变音符号）的变换的标识符。

Answer 3

使用此扩展程序：

extension String {
    /// strip combining marks (accents or diacritics)
    var stripDiacritics: String {
        let mStringRef = NSMutableString(string: self) as CFMutableString
        CFStringTransform(mStringRef, nil, kCFStringTransformStripCombiningMarks, false)
        return mStringRef as String
    }
}