在split（javascript）中包含分隔符 [英] Including separator characters in split (javascript)

问题描述

这是一个textarea。用户可以写任何东西。

This is a textarea. The user can write anything.

<textarea id="text">First sentence. Second sentence? Third sentence!
Fourth sentence.

Fifth sentence
</textarea>

最后，我必须将所有文本拆分成一个数组。

At the end, i have to split all the text into an array.

var sentences = $('#text').val().split(/\r\n|\r|\n|[.|!|?]\s/gi);

我遇到的问题是，数组项值中不存在分隔符。这是句子返回的内容：

The issue i'm having, is that the separator characters are not present in the array item values. This is what sentences is returning:

["First sentence", "Second sentence", "Third sentence", "Fourth sentence", "Fifth sentence"]

应该是：

["First sentence.", "Second sentence?", "Third sentence!", "", "Fourth sentence.", "", "", "Fifth sentence"]

额外注意事项：

• 最后一句不需要分隔符（可以在任何字符处结束）


• 如果一个句子有多个分隔符char，它也应该包含在数组项中。例如：第二句?? 应该是[...，第二句话??，...]

• last sentence doesn't require a separator character (it can end at any char)
• if a sentence has more than one separator char, it should also be included in the array item. Example: second sentence?? should be [...,"second sentence??",...]

有什么想法吗？任何方法都是受欢迎的（不一定是split（）） - 谢谢！

Any ideas? Any approach is welcome (not split() necessarily) - Thanks!

推荐答案

var re = /[^\r\n.!?]+(:?(:?\r\n|[\r\n]|[.!?])+|$)/gi;
("First sentence.. Second sentence?? Third sentence!!\n"+ "Fourth sentence").match(re).map($.trim)
//["First sentence..", "Second sentence??", "Third sentence!!", "Fourth sentence"]

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