var textt = "L'architecture du système d'information devient";
var pattern = "/(ARCH)/gi";
var array = textt.split(pattern);
console.log(array)
这导致：
[
L',
itecture du système d'information devient
]
预期的结果是：
[
L',
arch,
itecture du système d'information devien
]
另一个例子
var textt = "ARCHIMAG";
var pattern = "/(ARCH)/gi";
var array = textt.split(pattern);
console.log(array)
结果：
[
IMAG
]
，预期是：
[
ARCH,
IMAG
]
答案 0 :(得分：1)
如果您使用功能测试和功能来替换非捕获分割，请尝试以下操作。它在加载脚本时测试支持并为 nonCaptureSplit 分配适当的函数，因此测试只进行一次。
如果您使用的不是字母字符或数字（例如，如果字符串中有标点符号），则需要转义模式。
如果缺乏对非捕获分割的支持，现在进行完全手动分割。
// Do case insensitive, non-capture split
var nonCaptureSplit = (function() {
// Feature test for non-capturing split
if ( 'ab'.split(/(a)/).length == 3) {
return function (str, pattern) {
var re = new RegExp('(' + pattern + ')','i');
return str.split(re);
};
// Otherise, do it with a function
} else {
return function(str, pattern) {
// Do case insensitive split
var result = [];
var ts = str.toLowerCase(); // copy of string in lower case
var tp = pattern.toLowerCase();
var first = true;
while (ts.indexOf(tp) != -1) {
var i = ts.indexOf(tp);
// If first match is at the start, insert empty string + pattern
// Trim pattern from front of temp strings
if (i == 0 && first) {
result.push('', pattern);
ts = ts.substring(tp.length);
str = str.substring(tp.length);
// If match is at the end, append pattern and ''
// Set temp string to '' (i.e. finished)
} else if (i == ts.length - tp.length) {
result.push(str.substr(0,i), pattern);
ts = '';
str = '';
// Otherwise, append the next unmatched part
// and pattern
} else {
result.push(str.substring(0,i), pattern);
ts = ts.substring(i + pattern.length);
str = str.substring(i + pattern.length);
}
first = false;
}
// Append remainder of string or '' if used, i.e. last match
// must have been at end of string
result.push( ts.length? str : '');
return result;
};
}
}());
测试：
alert(nonCaptureSplit('wa', 'wa')); // ,wa,
alert(nonCaptureSplit('qwqwaba', 'wa')); // qwq,wa,ba
alert(nonCaptureSplit('qwqwaba', 'qw')); // ,qw,,qw,aba
alert(nonCaptureSplit('qwqwaba', 'ba')); // qwqwa,ba,
alert(nonCaptureSplit('baaqwqbawaba', 'ba')); // ,ba,aqwq,ba,wa,ba,
alert(nonCaptureSplit("L'architecture du système d'information devient", "ARCH"));
// L',arch,itecture du système d'information devient
alert(nonCaptureSplit("ARCHIMAG", "ARCH")); // ,ARCH,IMAG
对于具有大量匹配的大字符串，这可能有点低效，但仅限于不支持非捕获拆分的浏览器。测试结果在Safari和IE 6中匹配。请彻底测试，如果有问题请告诉我。
哦，这不是一般解决方案，但它应该适用于与OP类似的有限情况。
答案 1 :(得分：0)
如果您希望在String.prototype.split中解决已知的浏览器问题，那么您需要查看Steven Levithan's cross browser fixes并在2007年看到他的original post。这也用于他的XRegExp library。它也用在ES5 shim和其他人中。
/*!
* Cross-Browser Split 1.1.1
* Copyright 2007-2012 Steven Levithan <stevenlevithan.com>
* Available under the MIT License
* ECMAScript compliant, uniform cross-browser split method
*/
/**
* Splits a string into an array of strings using a regex or string separator. Matches of the
* separator are not included in the result array. However, if `separator` is a regex that contains
* capturing groups, backreferences are spliced into the result each time `separator` is matched.
* Fixes browser bugs compared to the native `String.prototype.split` and can be used reliably
* cross-browser.
* @param {String} str String to split.
* @param {RegExp|String} separator Regex or string to use for separating the string.
* @param {Number} [limit] Maximum number of items to include in the result array.
* @returns {Array} Array of substrings.
* @example
*
* // Basic use
* split('a b c d', ' ');
* // -> ['a', 'b', 'c', 'd']
*
* // With limit
* split('a b c d', ' ', 2);
* // -> ['a', 'b']
*
* // Backreferences in result array
* split('..word1 word2..', /([a-z]+)(\d+)/i);
* // -> ['..', 'word', '1', ' ', 'word', '2', '..']
*/
var split;
// Avoid running twice; that would break the `nativeSplit` reference
split = split || function (undef) {
var nativeSplit = String.prototype.split,
compliantExecNpcg = /()??/.exec("")[1] === undef, // NPCG: nonparticipating capturing group
self;
self = function (str, separator, limit) {
// If `separator` is not a regex, use `nativeSplit`
if (Object.prototype.toString.call(separator) !== "[object RegExp]") {
return nativeSplit.call(str, separator, limit);
}
var output = [],
flags = (separator.ignoreCase ? "i" : "") +
(separator.multiline ? "m" : "") +
(separator.extended ? "x" : "") + // Proposed for ES6
(separator.sticky ? "y" : ""), // Firefox 3+
lastLastIndex = 0,
// Make `global` and avoid `lastIndex` issues by working with a copy
separator = new RegExp(separator.source, flags + "g"),
separator2, match, lastIndex, lastLength;
str += ""; // Type-convert
if (!compliantExecNpcg) {
// Doesn't need flags gy, but they don't hurt
separator2 = new RegExp("^" + separator.source + "$(?!\\s)", flags);
}
/* Values for `limit`, per the spec:
* If undefined: 4294967295 // Math.pow(2, 32) - 1
* If 0, Infinity, or NaN: 0
* If positive number: limit = Math.floor(limit); if (limit > 4294967295) limit -= 4294967296;
* If negative number: 4294967296 - Math.floor(Math.abs(limit))
* If other: Type-convert, then use the above rules
*/
limit = limit === undef ?
-1 >>> 0 : // Math.pow(2, 32) - 1
limit >>> 0; // ToUint32(limit)
while (match = separator.exec(str)) {
// `separator.lastIndex` is not reliable cross-browser
lastIndex = match.index + match[0].length;
if (lastIndex > lastLastIndex) {
output.push(str.slice(lastLastIndex, match.index));
// Fix browsers whose `exec` methods don't consistently return `undefined` for
// nonparticipating capturing groups
if (!compliantExecNpcg && match.length > 1) {
match[0].replace(separator2, function () {
for (var i = 1; i < arguments.length - 2; i++) {
if (arguments[i] === undef) {
match[i] = undef;
}
}
});
}
if (match.length > 1 && match.index < str.length) {
Array.prototype.push.apply(output, match.slice(1));
}
lastLength = match[0].length;
lastLastIndex = lastIndex;
if (output.length >= limit) {
break;
}
}
if (separator.lastIndex === match.index) {
separator.lastIndex++; // Avoid an infinite loop
}
}
if (lastLastIndex === str.length) {
if (lastLength || !separator.test("")) {
output.push("");
}
} else {
output.push(str.slice(lastLastIndex));
}
return output.length > limit ? output.slice(0, limit) : output;
};
// For convenience
String.prototype.split = function (separator, limit) {
return self(this, separator, limit);
};
return self;
}();
答案 2 :(得分：0)
这是最好的解决方案：
function ieSplit(str, separator) {
var match = str.match(RegExp(separator, 'g'));
var notmatch = str.replace(new RegExp(separator, 'g'), '[|]').split('[|]');
var merge = [];
for(i in notmatch) {
merge.push(notmatch[i]);
if (match != null && match[i] != undefined) {
merge.push(match[i]);
}
}
return merge;
}