Question

我正在尝试在Node.js中创建一个函数，该函数以文章标题（无论是阿拉伯语，拉丁语言还是它们的组合）为准，并将其转换为尊重文本方向的URL友好字符串。

目前，如果没有不同的方向进行混合，那么一切都会很好地进行。这是一些使用不同语言的测试：

makeURLFriendly("Est-ce que vous avez des frères et sœurs? (Do you have siblings?)")
// French test, returns:
// est-ce-que-vous-avez-des-freres-et-soeurs-do-you-have-siblings

makeURLFriendly("Kannst du/ Können Sie mir helfen?")
// German test, returns:
// kannst-du-konnen-sie-mir-helfen

makeURLFriendly("A=+n_the)m, w!h@a#`t w~e k$n%o^w s&o f*a(r!")
// English with a bunch of symbols test, returns:
// anthem-what-we-know-so-far

makeURLFriendly("إليك أقوى برنامج إسترجاع ملفات في العالم بعرض حصري !")
// Arabic test, returns:
إليك-أقو-برنامج-إسترجاع-ملفات-في-العالم-بعرض-حصري

当一起使用双向语言时，问题开始出现，问题不仅在于函数返回什么，还在于给函数的结果。例如，当尝试用阿拉伯语和英语混合输入测试标题时，我得到的是这样的：

ماكروسوفت تطور من Outlook.com

方向弄乱了，但我注意到将相同的字符串粘贴到Facebook时它得到了固定：

a facebook message

在将它提供给makeURLFriendly函数之前，如何在Node.js中获得相同的结果？

Answer 1

解决方案是将U + 202B“从右到左嵌入”字符添加到字符串的开头，并在任何从左到右的单词之前。

这是最终有人想要的功能：

const makeURLFriendly = string => {
    let urlFriendlyString = ""

    // Initial clean up.
    string = string
        // Remove spaces from start and end.
        .trim()
        // Changes all characters to lower case.
        .toLowerCase()
        // Remove symbols with a space.
        .replace(/[`~!@#$%^&*()_|+\-=?;:'",.<>\{\}\[\]\\\/]/g, " ")

    // Special characters and the characters they will be replaced by.
    const specialCharacters = "àáäâãåăæçèéëêǵḧìíïîḿńǹñòóöôœṕŕßśșțùúüûǘẃẍÿź"
    const replaceCharacters = "aaaaaaaaceeeeghiiiimnnnoooooprssstuuuuuwxyz"
    // Creates a regular expression that matches all the special characters
    // from the specialCharacters constant. Will make something like this:
    // /à|á|ä/g and matches à or á or ä...
    const specialCharactersRegularExpression = new RegExp(
        specialCharacters.split("").join("|"),
        "g"
    )
    // Replaces special characters by their url friendly equivalent.
    string = string
        .replace(
            specialCharactersRegularExpression,
            matchedCharacter => replaceCharacters.charAt(
                specialCharacters.indexOf(matchedCharacter)
            )
        )
        .replace(/œ/g, "oe")

    // Only keeps Arabic, English and numbers in the string.
    const arabicLetters = "ىشغظذخثتسرقضفعصنملكيطحزوهدجبأاإآلإلألآؤءئة"
    const englishLetters = "abcdefghijklmnopqrstuvwxyz"
    const numbers = "0123456789"
    for (let character of string) {
        if (character === " ") {
            urlFriendlyString += character
            continue
        }
        const characterIsURLFriendly = Boolean(
            arabicLetters.includes(character) ||
            englishLetters.includes(character) ||
            numbers.includes(character)
        )
        if (characterIsURLFriendly) urlFriendlyString += character
    }

    // Clean up before text direction algorithm.
    // Replace multiple spaces with one space.
    urlFriendlyString = urlFriendlyString.replace(/\s+/g, "-")

    // Regular expression that matches strings that have
    // right to left direction.
    const isRightToLeft = /[\u0590-\u05ff\u0600-\u06ff]/u
    // Makes an array of all the words in urlFriendlyString
    let words = urlFriendlyString.split("-")

    // Checks if urlFriendlyString is a unidirectional string.
    // Makes another array of boolean values that signify if
    // a string isRightToLeft. Then basically checks if all
    // the boolean values are the same. If yes then the string
    // is unidirectional.
    const stringIsUnidirectional = Boolean(
        words
        .map(word => isRightToLeft.test(word))
        .filter((isWordRightToLeft, index, words) => {
            if (isWordRightToLeft === words[0]) return true
            else return false
        })
        .length === words.length
    )

    // If the string is unidirectional, there is no need for
    // it to pass through our bidirectional algorithm.
    if (stringIsUnidirectional) {
        return urlFriendlyString
            // Replaces multiple hyphens by one hyphen
            .replace(/-+/g, "-")
            // Remove hyphen from start.
            .replace(/^-+/, "")
            // Remove hyphen from end.
            .replace(/-+$/, "")
    }

    // Reset urlFriendlyString so we can rewrite it in the
    // direction we want.
    urlFriendlyString = ""
    // Add U+202B "Right to Left Embedding" character to the
    // start of the words array.
    words.unshift("\u202B")
    // Loop throught the values on the word array.
    for (let word of words) {
        // Concatinate - before every word (the first one will
        // be cleaned later on).
        urlFriendlyString += "-"
        // If the word isn't right to left concatinate the "Right
        // to Left Embedding" character before the word.
        if (!isRightToLeft.test(word)) urlFriendlyString += `\u202B${word}`
        // If not then just concatinate the word.
        else urlFriendlyString += word
    }

    return urlFriendlyString
        // Replaces multiple hyphens by one hyphen.
        .replace(/-+/g, "-")
        // Remove hyphen from start.
        .replace(/^-+/, "")
        // Remove hyphen from end.
        .replace(/-+$/, "")
        // The character U+202B is invisible, so if it is in the start
        // or the end of a string, the first two regular expressions won't
        // match them and the string will look like it still has hyphens
        // in the start or the end.
        .replace(/^\u202B-+/, "")
        .replace(/-+\u202B$/, "")
        // Removes multiple hyphens that come after U + 202B
        .replace(/\u202B-+/, "")

}

此外，当我.split（）返回的字符串时，单词排列得很好。也许这对于某些SEO会很有好处。我使用的控制台无法正确显示阿拉伯字符，或者根本无法显示阿拉伯字符。因此，我使此脚本写入文件以测试脚本的返回值：

const fs = require("fs")

const test = () => {
    const writeStream = fs.createWriteStream("./test.txt")

    writeStream.write(makeURLFriendly("Est-ce que vous avez des frères et sœurs? (Do you have siblings?)"))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly("Quel est ton/votre film préféré? (What’s your favorite movie?)"))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly("Kannst du/ Können Sie mir helfen?"))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly("Ich bin (Übersetzer/Dolmetscher) / Geschäftsmann"))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly("你吃饭了吗"))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly("慢慢吃"))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly("# (sd sdsds   (lakem 0.5) "))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly("A=+n_the)m, w!h@a#`t w~e k$n%o^w s&o f*a(r!"))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly("كيف تجد النيش ذات النقرات مرتفعة الثمن في أدسنس"))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly("إليك أقوى برنامج إسترجاع ملفات في العالم بعرض حصري !"))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly("عاجل ...  شركة Oppo تستعرض هاتفها الجديد  Eno"))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly("إنترنيت الجيل الخامس مميزاتها ! و هل صحيح ما يقوله الخبراء عن سوء إستخدامها من طرف الصين للتجسس ؟؟"))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly("لماذا إنخفضت أسهم شركة Apple بنسبة %20 ؟؟"))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly("10 نصائح لتصبح محترف في مجال Dropshipping"))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly(`"إيلون ماسك" و "زوكربرغ"... ما سبب الخلاف يا ترى ؟`))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly(`ماكروسوفت تطور من Outlook.com`))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly(`ما هو  HTTPS  و هل يضمن الأمان %100 ؟؟`))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly(`ما هي خدمة  Apple TV+ و لماذا هذا التوقيت ؟؟`))
    writeStream.write("\n")
    writeStream.write(makeURLFriendly(`مُراجعة هاتف سَامسونغ S10 Plus`))
}

test()

Answer 2

您可以使用此 npm 包将阿拉伯文本转换为正确的 RTL 阿拉伯格式，然后按空格拆分转换后的文本，以便您可以分隔单词，然后将它们与分隔符示例连接起来；

const convertedText = rtlArabic("مرحبا بك");
const delimiter = "-";
const slug = convertedText.split(" ").join(delimiter); // مرحبا-بك

NPM 包：https://www.npmjs.com/package/rtl-arabic

以后会支持slugs。

双向，URL友好的Node.js插件功能

2 个答案: