我有一个长字符串需要切成数组内的单独块,并且预定义的长度限制了块。一些规则适用:
原文:我的时间完全没有受到重视。您可以在这间客房内运营整个公园,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?因为如果他能够看到他尝试的话。
结果显示当前代码 ["我完全是","在我的时间里没有得到赏识","。你可以运行这整个","这个房间有","最短的工作人员,最长可达"," 3天。你认为","有点自动化是ea"," sy?还是便宜?你知道","任何可以联网"," 8连接机器","并调试200万行"," s代码为我出价","这份工作?因为如果","我可以在h","我试试。"]
......它应该实际:
["我完全","在我的时间里没有得到赏识。","你可以在这个房间里运行这整个","停车与","最少3到34天的员工,#34;天。你认为那种自动化很容易吗?","或便宜?你认识任何人","谁可以联网8","连接机器","调试200万行","代码用于什么我竞标","这份工作?因为如果他","我可以看到他","尝试。"]
如你所见,我仍然遇到规则 2 和 3 的问题。
这是我当前的代码(您可以查看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);
});
});
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>
答案 0 :(得分:5)
最多25个字符的示例,您可以使用此模式:
/\S[\s\S]{0,23}\S(?=\s|$)/g
代码示例:
var text = " I am totally unappreciated in my time. You can run this whole park from this room with minimal staff for up to 3 days. You think that kind of automation is easy? Or cheap? You know anybody who can network 8 connection machines and debug 2 million lines of code for what I bid for this job? Because if he can I'd like to see him try.";
var myRe = /\S[\s\S]{0,23}\S(?=\s|$)/g;
var m;
var result = new Array();
while ((m = myRe.exec(text)) !== null) {
result.push(m[0]);
}
console.log(result);
注意:如果您需要动态选择最大大小,则必须使用备用语法来定义RegExp对象:
var n = 25;
var myRe = new RegExp("\\S[\\s\\S]{0," + (n-2) + "}\\S(?=\\s|$)", "g");
模式详细信息:
\S # a non-space character (it is obviously preceded by a space
# or the start of the string since the previous match
# ends before a space)
[\s\S]{0,23} # between 0 or 23 characters
\S(?=\s|$) # a non-space character followed by a space or the end of the string