将[url]标记替换为< a href> Javascript/JQuery中的标签 [英] Replace [url] tags with <a href> tags in Javascript/JQuery

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问题描述

我正在尝试使用JQuery来实现以下逻辑:

I'm trying to use JQuery to achieve the following logic:

  • [url="http://www.google.com"]Google[/url]的字符串值替换为<a href="http://www.google.com">Google</a>
  • Replace the string value of [url="http://www.google.com"]Google[/url] with <a href="http://www.google.com">Google</a>

请在下面查看我的HTML页面.问题在于,按下按钮时,仅粘贴原始文本,而没有进行RegEx替换.

Please see my HTML page below. The problem is that on pressing the button, the orignal text is just pasted and no RegEx replacements are made.

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Test</title>
    <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
    <script type="text/javascript">
        //<![CDATA[
        function processJs() {
            var oldtext = $("#oldtext").html();
            var newtext = oldtext.replace('\[url\s?=\s?"?(.*?)"?\](.*?)\[\/url\]', '<a href="$1">$2</a>');
            $('#mydiv').html(newtext);
        }
        //]]>
    </script>
</head>
<body>
    <form id="form1" runat="server">
        <div id="oldtext">
            Try this funky new search engine:
            [url="http://www.google.com"]Google[/url]
            Or this older one from back in the day:
            [url="http://uk.altavista.com"]AltaVista[/url]
        </div>
        <div>
            <input type="button" id="btn" value="Replace" onclick="processJs(); return false;" />
        </div>
        <div id="mydiv" style="background-color: #eeeeee; border: 2px inset #aaaaaa">
            Replaced text will go here.
        </div>
    </form>
</body>
</html>

我已经使用ASP.NET来运行RegEx模式,所以我不确定移植到JavaScript时问题出在哪里...

I've had this RegEx pattern work using ASP.NET, so I'm not sure where the problem lies when ported to JavaScript...

推荐答案

那不是有效的正则表达式.使用/作为修饰符:

That is not a valid regex. Use / as modifiers:

/\[url\s?=\s?"?(.*?)"?\](.*?)\[\/url\]/

创建功能:

function processJs() {
    var oldtext = $("#oldtext").html();
    var newtext = oldtext.replace(/\[url\s?=\s?"?(.*?)"?\](.*?)\[\/url\]/g, '<a href="$1">$2</a>');
    $('#mydiv').html(newtext);
}

最后的

g将在文本上重复它.这是一个小提琴: http://jsfiddle.net/xe2F9/

g at the end will repeat it over the text. Here is a fiddle: http://jsfiddle.net/xe2F9/

这篇关于将[url]标记替换为&lt; a href&gt; Javascript/JQuery中的标签的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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