提取Div标签C＃正则表达式内容 [英] Extract Content from Div Tag C# RegEx

问题描述

我需要提取divtestimonial1 DIV这里面的内容
我使用正则表达式如下，但其唯一返回第一行

 正则表达式R =新的正则表达式（＆放大器; LT;格（[^＆LT;] *＆LT;？！（/ DIV＆GT;）））;
 

  ＆LT; D​​IV CLASS =testimonial_contentID =divtestimonial1＆GT;
          ＆LT; A NAME =T1＆GT;＆LT; / A>
          ＆LT; D​​IV CLASS =testimonial_headline>％testimonial1headline＆LT; / DIV>
          ＆LT; p align =left>＆LT; IMG SRC =ALT =WIDTH =193HEIGHT =204align =leftHSPACE =10ID =img_T1/>＆LT;跨度类=testimonial_text>％testimonial1text＆LT; / SPAN>＆LT; BR />
          ＆LT; / P>
  ＆LT; / DIV>

解决方案

<一个href=\"http://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags/1732454#1732454\">Regular前pressions一般不解析HTML 一个不错的选择。你可能会更好用的工具，如 HTML敏捷性包的，所以我建议您使用

话虽这么说，你可以使用这个正则表达式匹配特定的样本输入：

 ＆LT;？格* ID =divtestimonial1*方式＆gt;？* LT; / DIV＆GT;
 

但它也可能在现实世界中的场景打破。一个与正则表达式和HTML的烦恼是正确检测的标签嵌套等。

I need to extract this content inside the divtestimonial1 div I am using the following regEx, but its only returning the first line

Regex r = new Regex("&lt;div([^<]*<(?!/div>))");

  <div class="testimonial_content" id="divtestimonial1">
          <a name="T1"></a>
          <div class="testimonial_headline">%testimonial1headline</div>
          <p align="left"><img src="" alt="" width="193" height="204" align="left" hspace="10" id="img_T1"/><span class="testimonial_text">%testimonial1text</span><br />
          </p>
  </div>

解决方案

Regular expressions are generally not a good choice for parsing HTML. You might be better off using a tool such as HTML Agility Pack, so I would suggest you use that.

That being said, you can match your particular sample input using this Regex:

<div.*?id="divtestimonial1".*?>.*</div>

But it might break in your real-world scenario. One of the troubles with Regex and HTML is properly detecting nesting of tags, etc.

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