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问题描述

我有一个JavaScript大小写转换问题,由于非英语字母而无法解决.我主要关心的是土耳其字母.

I have a javascript case conversion problem which I cannot solve due to non-English letters. My main concern is the Turkish alphabet.

我需要做的是这个

  • hello world => Hello World
  • HELLO WORLD => Hello World
  • hELLO wOrLd => Hello World

这是我到目前为止所完成的:

Here is what I've accomplished so far:

String.prototype.turkishToUpper = function(){
    var stringlow = this;
    var letterslow = { 'i': 'İ', 'ş': 'Ş', 'ğ': 'Ğ', 'ü': 'Ü', 'ö': 'Ö', 'ç': 'Ç', 'ı': 'I' };
    stringlow = stringlow.replace(/(([iışğüçö]))/g, function(letterlow){ return letterslow[letterlow]; })
    return stringlow.toUpperCase();
}

String.prototype.turkishToLower = function(){
    var stringup = this;
    var lettersup = { 'İ': 'i', 'I': 'ı', 'Ş': 'ş', 'Ğ': 'ğ', 'Ü': 'ü', 'Ö': 'ö', 'Ç': 'ç' };
    stringup = stringup.replace(/(([İIŞĞÜÇÖ]))/g, function(letterup){ return lettersup[letterup]; })
    return stringup.toLowerCase();
}

String.prototype.toProperCase = function () {
    return this.replace(/\w\S*/g, function(txt){return txt.charAt(0).turkishToUpper() + txt.substr(1).turkishToLower();});
};

但这不能给我正确的结果,我怀疑正则表达式替换不能在unicode上使用,而只能在ascii上使用.

But this does not give me the correct results and I am suspecting the regex replace not being usable on unicode, but ascii.

当我用土耳其语字符测试时,我得到了错误的结果.

When I test with Turkish characters, I get wrong results.

  • şeker成为şEker,而不是Şeker
  • çobanırmak成为ÇobanIrmak
  • çObanıRmak
  • şeker becomes şEker instead of Şeker
  • çoban ırmak becomes çOban ıRmak intead of Çoban Irmak

此外,如果这个问题能够解决,我需要锦上添花,不仅要用空格,而且要用一些其他停止字符(例如:-=/等)来分隔单词,这样

Also, if this can ever get resolved, I need an icing on the cake to separate words not only by spaces, but also by some other stop characters such as : - = / etc so that

  • hello-world变为Hello-World
  • hello:world变为Hello:World

我在这里已经阅读了许多类似的问题,但到目前为止还没有运气.

I've read through many similar questions here on SO, but no luck so far.

谢谢

注意:我认为这称为Title Case,但有人认为这是Pascal Case.坦率地说,我有兴趣解决unicode问题(我认为这是根本原因),而不是解决语义问题,因此,如果我使用了错误的术语,请原谅我:)

推荐答案

独立功能:

function toProperCase(s){
    return s.replace(/([^\s:\-])([^\s:\-]*)/g,function($0,$1,$2){
        return $1.toUpperCase()+$2.toLowerCase();
    });
}

或者用于扩展String.prototype:

Or for extending of String.prototype:

String.prototype.toProperCase=function() {
    return this.replace(/([^\s:\-])([^\s:\-]*)/g,function($0,$1,$2){
        return $1.toUpperCase()+$2.toLowerCase();
    });
}

"çoban ırmak becomes çOban ıRmak intead of Çoban Irmak Hello-wOrld".toProperCase();
// "Çoban Irmak Becomes Çoban Irmak Intead Of Çoban Irmak Hello-World"

更新:

接下来的代码使用自定义功能来转换特定于语言环境的字符(已部分测试).代码将功能添加到String.prototype:toLocaleProperCase2toLocaleLowerCase2toLocaleUpperCase2.

Next code uses custom functionality for converting locale specific chars (tested partially). Code adds functions into String.prototype: toLocaleProperCase2, toLocaleLowerCase2 and toLocaleUpperCase2.

(function(){
    // locale specific chars
    // IMPORTANT: name of locale must be always in lower case (for "tr-TR" locale - "tr-tr") !!!
    var localeInfos={
            "tr-tr": { lower: { i:"İ", ı:"I", ş:"Ş", ğ:"Ğ", ü:"Ü", ç:"Ç", ö:"Ö" },
                       upper: { İ:"i", I:"ı", Ş:"ş", Ğ:"ğ", Ü:"ü", Ç:"ç", Ö:"ö" } }
        },
        localeInfo;
    // helper vars
    var mask="\\s:\\-", // add additional delimeters chars to the mask if needed
        rg=new RegExp("([^"+mask+"])([^"+mask+"]*)","g");
    var fnToLocaleLower=function(s){ return localeInfo.upper[s]; },
        fnToLocaleUpper=function(s){ return localeInfo.lower[s]; },
        fnToProper=function($0,$1,$2){
            if(localeInfo){
                if(localeInfo.lower.hasOwnProperty($1))$1=localeInfo.lower[$1];
                $2=$2.replace(localeInfo.upperSearchRegExp,fnToLocaleLower);
            }
            return $1.toUpperCase()+$2.toLowerCase();
        };
    // helper calculations
    var localeInfosKeys=Object.keys(localeInfos);
    for(var i=0;localeInfo=localeInfos[localeInfosKeys[i]];i++){
        localeInfo.lowerSearchRegExp=new RegExp("["+Object.keys(localeInfo.lower).join("")+"]","g");
        localeInfo.upperSearchRegExp=new RegExp("["+Object.keys(localeInfo.upper).join("")+"]","g");
    }

    // extending String.prototype
    String.prototype.toLocaleProperCase2=function toLocaleProperCase2(locale){
        localeInfo=localeInfos[arguments.length?locale.toLowerCase():null];
        return this.replace(rg,fnToProper);
    };
    String.prototype.toLocaleLowerCase2=function toLocaleLowerCase2(locale){
        return ((localeInfo=localeInfos[arguments.length?locale.toLowerCase():null]) ?
                this.replace(localeInfo.upperSearchRegExp,fnToLocaleLower):
                this).toLowerCase();
    };
    String.prototype.toLocaleUpperCase2=function toLocaleUpperCase2(locale){
        return ((localeInfo=localeInfos[arguments.length?locale.toLowerCase():null]) ?
                this.replace(localeInfo.lowerSearchRegExp,fnToLocaleUpper) :
                this).toUpperCase();
    };
})();


// testing
var sss="çoban ırmak ibecıoimes çOban ıRmak intead of Çoban IrImaİk Hello-wOrld";
console.log("Origin:    ", sss);
console.log("Proper TR: ", sss.toLocaleProperCase2("tr-TR"));
console.log("Proper:    ", sss.toLocaleProperCase2());
console.log("Lower TR:  ", sss.toLocaleLowerCase2("tr-TR"));
console.log("Lower:     ", sss.toLocaleLowerCase2());
console.log("Upper TR:  ", sss.toLocaleUpperCase2("tr-TR"));
console.log("Upper:     ", sss.toLocaleUpperCase2());

// Origin:    çoban ırmak ibecıoimes çOban ıRmak intead of Çoban IrImaİk Hello-wOrld
// Proper TR: Çoban Irmak İbecıoimes Çoban Irmak İntead Of Çoban Irımaik Hello-World
// Proper:    Çoban Irmak Ibecıoimes Çoban Irmak Intead Of Çoban Irimaik Hello-World
// Lower TR:  çoban ırmak ibecıoimes çoban ırmak intead of çoban ırımaik hello-world
// Lower:     çoban ırmak ibecıoimes çoban ırmak intead of çoban irimaik hello-world
// Upper TR:  ÇOBAN IRMAK İBECIOİMES ÇOBAN IRMAK İNTEAD OF ÇOBAN IRIMAİK HELLO-WORLD
// Upper:     ÇOBAN IRMAK IBECIOIMES ÇOBAN IRMAK INTEAD OF ÇOBAN IRIMAİK HELLO-WORLD

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07-23 07:24
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