正则问题，急

Question

内容：
$elements['header']=<<<eot
<div id="wrapper">
<div>
asdfasdf
</div> 
</div>
eot;
$elements['mainpage']=<<<eot
<div class="content-box-tbar">
   <div>asdfadf</div>        
</div>
eot;$elements['page']=<<<eot
<div class="content-box-tb斯蒂芬ar">
   <div>asdfa啊是的发生的发生的df</div>        
</div>
eot;比如我现在要用正则读取
$elements['header']=<<<eot
<div id="wrapper">
<div>
asdfasdf
</div> 
</div>
eot;
这部分内容该这么写正则啊，最好能通用的，我以根据传进来的header，或page或mainpage来读取相应的内容

Answer 1

        string temp = @"$elements['header']=<<<eot
                        <div id=""wrapper"">
                        <div>
                        asdfasdf
                        </div> 
                        </div>
                        eot;
                        $elements['mainpage']=<<<eot
                        <div class=""content-box-tbar"">
                          <div>asdfadf</div>  
                        </div>
                        eot;                        $elements['page']=<<<eot
                        <div class=""content-box-tb斯蒂芬ar"">
                          <div>asdfa啊是的发生的发生的df</div>  
                        </div>
                        eot;";
        var i = "header";
        Console.WriteLine(Regex.Match(temp, @"\$elements\['" + i + @"'\]=<<<eot[^\$]+").Value); 

Answer 2

       string str = "...";
        string mychar="header"
        System.Text.RegularExpressions.Regex reg = new System.Text.RegularExpressions.Regex(@"(?is(?<=$elements['"+ mychar +"']=<<<eot\s+)(?<content>.*?)(?=\s+eot;)", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
        System.Text.RegularExpressions.MatchCollection m = reg.Matches(str); //设定要查找的字符串
        for (int i = 0; i < m.Count; i++)
        {
            Response.Write(m[i].Groups["content"].ToString()+"<br>");
        }