JavaScript中的区域设置感知号码转换 [英] Locale aware number conversion in JavaScript
问题描述
是否有 JQuery插件 可以促进 NUMBER LOCALIZATION ?
也就是说,该插件应将数字转换为其本地字形。
阿拉伯语 | 4321 | 1234
印度语(泰卢固语/印地语) | 12345/12345 | 12345
PS:我的要求是数字CONVERSION,而不是格式化。
你可以使用像这样的简单函数来翻译来自阿拉伯数字:
function translateNumerals(input,target){
var systems = {
devanagari:2406,tamil:3046, kannada:3302,
telugu:3174,marathi:2406,malayalam:3430,
oriya:2918,gurmukhi:2662,nagari:2534,gujarati:2790
},
zero = 48,//阿拉伯语零的字母代码
九= 57,//阿拉伯语的字母代码9
offset =(systems [target.toLowerCase()] || zero) - 零,
output = input.toString()。split(),
i,l = output.length,cc;
for(i = 0; i< l; i ++){
cc = output [i] .charCodeAt(0);
if(cc> = 0&& cc< = 9){
output [i] = String.fromCharCode(cc + offset);
}
}
返回output.join();
}
并称之为
translateNumerals(12345,Telugu)//12345
translateNumerals(12345,Devanagari)//12345
translateNumerals( foo,梵文)//foo
将转换为阿拉伯数字同样简单。它需要更多的管道。
上述函数知道任何目标系统中Zero的charCode,并做一些简单的数学运算,从阿拉伯数字到该系统进行逐字符转换。 / p>
反向函数需要检查输入的每个字符。如果它落在任何源系统的charCode 范围(即相应的零+9的charCode),它知道所需的偏移量。减去偏移量将使您进入阿拉伯语范围。这非常简单,我会留给你。
编辑#1:既然你提到了jQuery,就可以将上面的内容变成这样的插件:
jQuery.fn.extend({
textTranslateNumerals:(function(){
var translateNumerals = function(input,target){
//上面的函数
};
返回函数(target){
//为每个选定的元素...
返回this.each(function(){
// ...查看每个子节点和
$(this).contents() .each(function(){
// ...翻译文本节点,递归到元素
if(this.nodeType === this.TEXT_NODE){
$(this).text (translateNumerals($(this).text(),target));
} else if(this.nodeType === this.ELEMENT_NODE){
$(this).textTransla teNumerals(目标);
}
});
});
};
})()
});
编辑#2: FWIW,这是一个可以从任何源系统转换为任何目标系统的函数:
function translateNumerals(输入,来源,目标){
var systems = {
arabic:48,
devanagari:2406,tamil:3046,kannada:3302,telugu :3174,marathi:2406,
malayalam:3430,oriya:2918,gurmukhi:2662,nagari:2534,gujarati:2790,
},
output = [],offset = 0,零= 0,九= 0,char = 0;
source = source.toLowerCase();
target = target.toLowerCase();
if(!(系统中的来源&&系统中的目标)
|| input == null
|| typeof input ==undefined|| typeof input ==object){
返回输入;
}
input = input.toString();
offset = systems [target] - systems [source];
zero = systems [source];
九=系统[来源] + 9;
for(var i = 0,l = input.length; i< l; i ++){
var char = input.charCodeAt(i);
if(char> = 0&& char< = 9){
output.push(String.fromCharCode(char + offset));
} else {
output.push(input [i]);
}
}
返回output.join();
}
样本输出
translateNumerals(0123456789,arabic,malayalam)//0123456789
translateNumerals(0123456789,malayalam,arabic)// 0123456789
translateNumerals(0123456789,malayalam,kannada)//0123456789
translateNumerals(0123456789,kannada,nagari)//01২3456789
translateNumerals(0123456789,kannada,gujarati)//0123456789
translateNumerals(USD 13.56,arabic,nagari)//USD 13.56
Is there a JQuery Plugin available that facilitates NUMBER LOCALIZATION ? That is , the plugin should translate numerals into their local glyphs.
Arabic | ٤٣٢١ | 1234 Indic (Telugu/Hindi) | ౧౨౩౪౫/१२३४५ | 12345
PS : My requirement is number CONVERSION , not formatting .
You could use a simple function like this one for the translation from Arabic numerals:
function translateNumerals(input, target) {
var systems = {
devanagari: 2406, tamil: 3046, kannada: 3302,
telugu: 3174, marathi: 2406, malayalam: 3430,
oriya: 2918, gurmukhi: 2662, nagari: 2534, gujarati: 2790
},
zero = 48, // char code for Arabic zero
nine = 57, // char code for Arabic nine
offset = (systems[target.toLowerCase()] || zero) - zero,
output = input.toString().split(""),
i, l = output.length, cc;
for (i = 0; i < l; i++) {
cc = output[i].charCodeAt(0);
if (cc >= zero && cc <= nine) {
output[i] = String.fromCharCode(cc + offset);
}
}
return output.join("");
}
And call it like this
translateNumerals(12345, "Telugu") // "౧౨౩౪౫"
translateNumerals(12345, "Devanagari") // "१२३४५"
translateNumerals("foo", "Devanagari") // "foo"
The translation to Arabic numerals is equally simple. It requires just a little more plumbing.
The above function knows the charCode of the Zero in any target system and does some simple math to do a character-by-character conversion from Arabic numerals to that system.
A reverse function would need to check each character of the input. If it falls the charCode range of any source system (i.e. the charCode of the respective Zero + 9) it knows the required offset. Subtracting the offset will get you into the Arabic range. This is pretty trivial and I'll leave it to you.
EDIT #1: Since you mentioned jQuery, the above could be made into a plugin like this:
jQuery.fn.extend({
textTranslateNumerals: (function () {
var translateNumerals = function (input, target) {
// the above function
};
return function (target) {
// for each selected element...
return this.each(function () {
// ...look at each child node and
$(this).contents().each(function () {
// ...translate text nodes, recurse into elements
if (this.nodeType === this.TEXT_NODE) {
$(this).text(translateNumerals($(this).text(), target));
} else if (this.nodeType === this.ELEMENT_NODE) {
$(this).textTranslateNumerals(target);
}
});
});
};
})()
});
EDIT #2: FWIW, here is a function that can convert from any source system into any target system:
function translateNumerals(input, source, target) {
var systems = {
arabic: 48,
devanagari: 2406, tamil: 3046, kannada: 3302, telugu: 3174, marathi: 2406,
malayalam: 3430, oriya: 2918, gurmukhi: 2662, nagari: 2534, gujarati: 2790,
},
output = [], offset = 0, zero = 0, nine = 0, char = 0;
source = source.toLowerCase();
target = target.toLowerCase();
if ( !(source in systems && target in systems)
|| input == null
|| typeof input == "undefined" || typeof input == "object" ) {
return input;
}
input = input.toString();
offset = systems[target] - systems[source];
zero = systems[source];
nine = systems[source] + 9;
for (var i=0, l=input.length; i<l; i++) {
var char = input.charCodeAt(i);
if (char >= zero && char <= nine) {
output.push( String.fromCharCode(char + offset) );
} else {
output.push( input[i] );
}
}
return output.join("");
}
Sample outputs
translateNumerals("0123456789", "arabic", "malayalam") // "൦൧൨൩൪൫൬൭൮൯"
translateNumerals("൦൧൨൩൪൫൬൭൮൯", "malayalam", "arabic") // "0123456789"
translateNumerals("൦൧൨൩൪൫൬൭൮൯", "malayalam", "kannada") // "೦೧೨೩೪೫೬೭೮೯"
translateNumerals("೦೧೨೩೪೫೬೭೮೯", "kannada", "nagari") // "০১২৩৪৫৬৭৮৯"
translateNumerals("೦೧೨೩೪೫೬೭೮೯", "kannada", "gujarati") // "૦૧૨૩૪૫૬૭૮૯"
translateNumerals("USD 13.56", "arabic", "nagari") // "USD ১৩.৫৬"
这篇关于JavaScript中的区域设置感知号码转换的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!