XPath 匹配表格中的文本 - Ruby - Nokigiri [英] XPath matching text in a table - Ruby - Nokigiri

问题描述

我有一张看起来像这样的桌子

I have a table that looks like this

<table cellpadding="1" cellspacing="0" width="100%" border="0">
  <tr>
      <td colspan="9" class="csoGreen"><b class="white">Bill Statement Detail</b></td>
  </tr>
  <tr style="background-color: #D8E4F6;vertical-align: top;">
      <td nowrap="nowrap"><b>Bill Date</b></td>
      <td nowrap="nowrap"><b>Bill Amount</b></td>

      <td nowrap="nowrap"><b>Bill Due Date</b></td>
      <td nowrap="nowrap"><b>Bill (PDF)</b></td>
  </tr>
</table>

我正在尝试创建 XPATH 以查找包含测试 Bill Statement Detail 的表.我想要整个表，而不仅仅是 td.

I am trying to create the XPATH to find this table where it contains the test Bill Statement Detail. I want the entire table and not just the td.

这是我迄今为止尝试过的:

Here is what I have tried so far:

page.parser.xpath('//table[contains(text(),"Bill")]')

page.parser.xpath('//table[contains(text(),"Bill")]')

page.parser.xpath('//table/tbody/tr[contains(text(),"账单明细")]')

page.parser.xpath('//table/tbody/tr[contains(text(),"Bill Statement Detail")]')

感谢任何帮助

谢谢！

推荐答案

您的第一个 XPath 示例与您选择的 table 最接近.第二个示例，如果它匹配，将选择 tr—这将不起作用，主要是因为根据您的示例，您想要的文本位于 b 节点中，不是 tr 节点.

Your first XPath example is the closest in that you're selecting table. The second example, if it ever matched, would select tr—this one will not work mainly because, according to your example, the text you want is in a b node, not a tr node.

由于*，这个解决方案是我所能做到的含糊不清.如果目标文本始终在 b 下，请将其更改为 descendant::b:

This solution is as vague as I could make it, because of *. If the target text will always be under b, change it to descendant::b:

//table[contains(descendant::*, 'Bill Statement Detail')]

举个例子，这是我能做到的:

This is as specific, given the example, as I can make:

//table[tr[1]/td/b['Bill Statement Detail']]

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