如何使用jQuery从纯文本中提取URL？ [英] How do I extract a URL from plain text using jQuery?

问题描述

我是jQuery的初学者。

I'm a beginner with jQuery.

我只是想将一个文本块传递给一个函数并返回一个包含在其中的url数组。

I simply want to pass a block of text to a function and return an array of urls contained within.

我需要获取像 http://www.something.com这样的网址来自文本，如果有moremore，那么也抓住那些。

"I need to grab a url like http://www.something.com from text, and if therearemore.com then grab those too".

任何帮助？有.GetUrl（）吗？

Any help? Is there a .GetUrl()?

注意：我用正则表达式吮吸！

Note: I suck with regular expressions!

推荐答案

jQuery Wiki Text插件（​​http://www.kajabity.com/jquery-wikitext/）包含正则表达式，用于查找可用于此目的的文本中的URls。

The jQuery Wiki Text plugin (http://www.kajabity.com/jquery-wikitext/) includes Regular Expressions to find URls in text which can be used for the purpose.

所以，你问了一个函数 - 这里是：

So, you asked for a function - well here it is:

/**
 * A utility function to find all URLs - FTP, HTTP(S) and Email - in a text string
 * and return them in an array.  Note, the URLs returned are exactly as found in the text.
 * 
 * @param text
 *            the text to be searched.
 * @return an array of URLs.
 */
function findUrls( text )
{
    var source = (text || '').toString();
    var urlArray = [];
    var url;
    var matchArray;

    // Regular expression to find FTP, HTTP(S) and email URLs.
    var regexToken = /(((ftp|https?):\/\/)[\-\w@:%_\+.~#?,&\/\/=]+)|((mailto:)?[_.\w-]+@([\w][\w\-]+\.)+[a-zA-Z]{2,3})/g;

    // Iterate through any URLs in the text.
    while( (matchArray = regexToken.exec( source )) !== null )
    {
        var token = matchArray[0];
        urlArray.push( token );
    }

    return urlArray;
}

希望有所帮助。

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