如何使用jQuery从纯文本中提取URL?

bea*_*ear 10 javascript url jquery

我是jQuery的初学者.

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.

"我需要从文本中获取像http://www.something.com这样的网址,如果有更多网站,那么就抓住它们".

有帮助吗?有.GetUrl()吗?

注意:我喜欢正则表达式!

小智 26

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

所以,你要求一个功能 - 这里它是:

/**
 * 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;
}
Run Code Online (Sandbox Code Playgroud)

希望能帮助到你.


mVC*_*Chr 6

RegExp可能是要走的路,这应该是你的诀窍:

var searchText = $('yourElement').text(),

    // urls will be an array of URL matches
    urls = searchText.match(/\b(http|https)?(:\/\/)?(\S*)\.(\w{2,4})\b/ig);

// you can then iterate through urls
for (var i = 0, il = urls.length; i < il; i++) {
    // do whatever with urls[i]
}
Run Code Online (Sandbox Code Playgroud)

见演示→


Kev*_*tre 1

您必须使用正则表达式。尝试:

/\i\b(http|https):\/\/(\S*)\b/i
Run Code Online (Sandbox Code Playgroud)

如果您不擅长正则表达式,我建议您查看这个在线工具来构建它们: http: //rubular.com/