包含类，子和邻接兄弟选择器的CSS选择器的等效XPath是什么？

我有这样的：包含类，子和邻接兄弟选择器的CSS选择器的等效XPath是什么？

li.current+li>a

但是我只有的XPath的基本知识。我需要它为AutoPager Firefox扩展。

我也想只得到第一场比赛。

来源

2011-03-17 Steven

http://xpath.alephzarro.com/content/cheatsheet.html – 2011-03-17 12:24:57

我已经看过，但你如何得到下一个兄弟姐妹？ – Steven 2011-03-17 12:27:30

以下 - 兄弟姐妹？ – 2011-03-17 12:29:23

li.current + li > a映射到：

//li[@class='current']/following-sibling::*[1]/self::li/a

如果你要选择的第一a子元素，你的CSS选择应该是：

li.current + li > a:first-child

映射到：

//li[@class='current']/following-sibling::*[1]/self::li/a[1]

来源

2011-03-17 12:36:37 melhosseiny

谢谢，但它仍然匹配2而不是第一个。 – Steven 2011-03-17 12:37:47

我可以看到你的XML吗？ – melhosseiny 2011-03-17 12:43:53

转发此页：http://forums.whirlpool.net.au/forum-replies.cfm?t=1543353&p=26我将它用于HTML。 – Steven 2011-03-17 12:45:12

如果你的li属于很多类，那么...

//li[contains(concat(' ',normalize-space(@class),' '),' current ')]/following-sibling::*[1]/self::li/a

这里是打散了许多线为清楚起见，同样的事情：

//li[contains(
     concat(' ',normalize-space(@class),' '), 
     ' current ' 
    ) 
]/following-sibling::*[1]/self::li/a

引文：http://pivotallabs.com/users/alex/blog/articles/427-xpath-css-class-matching

我使用下面的XML与Online XPath 2 evaluator测试它：

<html> 
    <head> 
     <title> 
      Consume usage app support thread #2 - Apps - iPhone - Whirlpool Forums 
     </title> 
    </head> 
    <body> 
     <div id="root"> 
      <ul id="top_pagination" class="pagination "> 
       <li class="first"> 
        <a href="/forum-replies.cfm?t=1543353"> 
         first: 5 months ago 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353"> 
         1 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=2"> 
         2 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=3"> 
         3 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=4"> 
         4 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=5"> 
         5 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=6"> 
         6 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=7"> 
         7 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=8"> 
         8 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=9"> 
         9 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=10"> 
         10 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=11"> 
         11 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=12"> 
         12 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=13"> 
         13 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=14"> 
         14 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=15"> 
         15 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=16"> 
         16 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=17"> 
         17 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=18"> 
         18 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=19"> 
         19 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=20"> 
         20 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=21"> 
         21 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=22"> 
         22 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=23"> 
         23 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=24"> 
         24 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=25"> 
         25 
        </a> 
       </li> 
       <li class="current "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=26"> 
         26 
        </a> 
       </li> 
       <li class=" "> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=27"> 
         27 
        </a> 
       </li> 
       <li class="last"> 
        <a href="/forum-replies.cfm?t=1543353&amp;p=-1&amp;#bottom"> 
         last: 2 hours ago 
        </a> 
       </li> 
      </ul> 
     </div> 
    </body> 
</html>

您应该注意，您链接的页面作为您的输入 - http://forums.whirlpool.net.au/forum-replies.cfm?t=1543353&p=26 - 是HTML，而不是XML：

其DOCTYPE声明是HTML 4.01
文档中包含未关闭的标签，如<br>它必须是<br />

...所以你可能有使用它作为XPath评估的输入的问题。

来源

2011-03-17 15:28:10

+1正确答案。 – 2011-03-17 16:40:24

@Ajjandro - 格式/突出显示使XPAth看起来很奇怪;第一行看起来像是一条评论......我要把单线和多线两种格式。 – 2011-03-17 17:11:33

我认为滚动是可读性最差的。此外，我们采取空白处理作为XPath的功能... – 2011-03-17 17:39:41

包含类，子和邻接兄弟选择器的CSS选择器的等效XPath是什么？

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