javascript - JQuery 如何替换文本区域内的字符串？

Question

当前文本区域:

<textarea id="event_content">
This text area could be full of information..www.london2012.com
And might contain upto 5 links that all need updating.
www.rio2016.org

Link already converted. this should be left.
<a href="http://www.thetimes.co.uk" target="_blank">www.thetimes.co.uk</a>
</textarea>

<小时/>

jquery 之后所需的文本区域:所有链接都将被清理/替换为标签和目标属性

<textarea id="event_content">
This text area could be full of information
<a href="http://www.london2012.com" target="_blank">www.london2012.com</a>
And might contain upto 5 links that all need updating.
<a href="http://www.rio2016.org" target="_blank">www.rio2016.org</a>

Link already converted. this should be left.
<a href="http://www.thetimes.co.uk" target="_blank">www.thetimes.co.uk</a>
</textarea>

<小时/>

2012 年 7 月 21 日 - Ωmega's代码很有效，谢谢，但是可以通过保留已经转换的链接来改进吗？

Answer 1

我相信您正在寻找类似的东西(点击here来测试这个 fiddle ):

$('#event_content').val(
  $('#event_content').val().replace(/\b(http(s|):\/\/|)(www\.\S+)/ig,
    "<a href='http\$2://\$3' target='_blank'>\$3</a>"));