使用jQuery将长字符串拆分为文本块(Split long string into text chunks with jQuery)

 我有一个长字符串需要切成数组内的单独块，预定义的长度限制块。 一些规则适用： 
 
 
 
 如果限制削减了一个单词，则该单词将被分隔以用于下一个块。 
 
 
 必须修剪切片（数组项的开头或结尾没有空格）。 
 
 
 特殊标点符号，！？ 应该留在这个词，而不是被发送到下一个块。 
 
 
 
 
 原文 ：我的时间完全没有受到重视。 您可以从这间客房经营整个公园，最少有3天的工作人员。 您认为那种自动化很容易吗？ 还是便宜？ 你知道有谁可以联网8台连接机器并调试200万行代码，以便我为这份工作买单吗？ 因为如果他能让我看到他试试。 
 
 
 结果与当前代码 [“我完全”，“在我的时间中不被赏识”，“。你可以运行这整个”，“从这个房间停放”，“最小的工作人员，最多”，“3天。你认为“，”有点自动化是“，”sy？还是便宜？你知道“，”任何可以联网的人，“8个连接机器”，“调试200万行代码”，我的出价代码“ ，“为了这份工作？因为如果”，“我可以想看到h”，“我试试。”] 
 
 
 ......它应该是： 
 
 
 
 [“我完全”，“在我的时间里没有得到赏识。”，“你可以运行这一整体”，“从这个房间停放”，“最少3”的工作人员，“天。你认为那种”，“自动化很容易？“，”或便宜？你知道任何人“，”谁可以网络8“，”连接机器“，”调试200万行“，”代码为我竞标“，这个工作？因为如果他“，”我想看到他“，”试试。“] 
 
 
 如你所见，我仍然遇到第2和第3条规则的问题。 
 
 这是我目前的代码（您可以在jsfiddle中查看工作演示 ）： 
 
function text_split(string, limit, pos, lines) {
    //variables
    if(!pos) pos = 0;
    if(!lines) lines = [];
    var length = string.val().length;
    var length_current;

    //cut string
    var split = string.val().substr(pos, limit);
    if(/^\S/.test(string.val().substr(pos, limit))) {
        //check if it is cutting a word
        split = split.replace(/\s+\S*$/, "");
    }

    //current string length
    length_current = split.length;

    //current position
    pos_current = length_current + pos;

    //what to do
    if(pos_current < length) {
        lines.push(split);
        return text_split(string, limit, pos_current, lines);
    } else {
        console.log(lines);
        return lines;
    }
}
$(function(){
    $('#button').click(function(){
        text_split($('#textarea'), 25);
    });
});
 
 演示的html表单： 
 
<textarea id="textarea" rows="10" cols="80">I am totally unappreciated in my time. You can run this whole park from this room with minimal staff for up to 3 days. You think that kind of automation is easy? Or cheap? You know anybody who can network 8 connection machines and debug 2 million lines of code for what I bid for this job? Because if he can I'd like to see him try.</textarea>
<button id="button">demo</button>

I have a long string that needs to be sliced into separated chunks inside an array, with a predefined length limit the chunks. Some rules apply:
 
 
 
If the limit cuts a word, then the word is separated for the next chunk.
 
 
Slices must be trimmed (no spaces at the beginning or end of the array item).
 
 
Special punctuation .,!? should stay with the word, and not be sent to the next chunk.
 
 
 
 
Original text: I am totally unappreciated in my time. You can run this whole park from this room with minimal staff for up to 3 days. You think that kind of automation is easy? Or cheap? You know anybody who can network 8 connection machines and debug 2 million lines of code for what I bid for this job? Because if he can I'd like to see him try.
 
 
Result with current code ["I am totally", " unappreciated in my time", ". You can run this whole", " park from this room with", " minimal staff for up to ", "3 days. You think that", " kind of automation is ea", "sy? Or cheap? You know", " anybody who can network ", "8 connection machines", " and debug 2 million line", "s of code for what I bid", " for this job? Because if", " he can I'd like to see h", "im try."]
 
 
...it should actually be:
 
 
 
["I am totally", "unappreciated in my time.", "You can run this whole", "park from this room with", "minimal staff for up to 3", "days. You think that kind", "of automation is easy?", "Or cheap? You know anybody", "who can network 8", "connection machines and", "debug 2 million lines of", "code for what I bid for", "this job? Because if he", "can I'd like to see him", "try."]
 
 
As you can see, I'm still having trouble with rules 2 and 3.
 
This is my current code (you can check the working demo in jsfiddle):
 
function text_split(string, limit, pos, lines) {
    //variables
    if(!pos) pos = 0;
    if(!lines) lines = [];
    var length = string.val().length;
    var length_current;

    //cut string
    var split = string.val().substr(pos, limit);
    if(/^\S/.test(string.val().substr(pos, limit))) {
        //check if it is cutting a word
        split = split.replace(/\s+\S*$/, "");
    }

    //current string length
    length_current = split.length;

    //current position
    pos_current = length_current + pos;

    //what to do
    if(pos_current < length) {
        lines.push(split);
        return text_split(string, limit, pos_current, lines);
    } else {
        console.log(lines);
        return lines;
    }
}
$(function(){
    $('#button').click(function(){
        text_split($('#textarea'), 25);
    });
});
 
The html form for the demo:
 
<textarea id="textarea" rows="10" cols="80">I am totally unappreciated in my time. You can run this whole park from this room with minimal staff for up to 3 days. You think that kind of automation is easy? Or cheap? You know anybody who can network 8 connection machines and debug 2 million lines of code for what I bid for this job? Because if he can I'd like to see him try.</textarea>
<button id="button">demo</button>

原文：https://stackoverflow.com/questions/28225522