使用 Nokogiri 解析内部标签
我无法解析不规则嵌入的 html 标签。有没有办法从节点中删除所有 html 标签并保留所有文本？
我正在使用代码：
rows = doc.search('//table[@id="table_1"]/tbody/tr')
details = rows.collect do |row|
detail = {}
[
[:word, 'td[1]/text()'],
[:meaning, 'td[6]/font'],
].collect do |name, xpath|
detail[name] = row.at_xpath(xpath).to_s.strip
end
detail
end
Using Xpath:
[:meaning, 'td[6]/font']
generates
:meaning: ! '<font size="3">asking for information specifying <font
color="#CC0000" size="3">what is your name?</font> /what/ as in, <font color="#CC0000" size="3">I'm not sure what you mean</font>
/what/ as in <a style="text-decoration: none;" href="http://somesecretlink.com">what</a></font>
另一方面，使用Xpath:
'td/font/text()'
generates
:meaning: asking for information specifying
从而忽略节点的所有子节点。我想要实现的是这个
:meaning: asking for information specifying what is your name? /what/ as in, I'm not sure what you mean /what/ as in what? I can't hear you
I'm stuck not being able to parse irregularly embedded html tags. Is there a way to remove all html tags from a node and retain all text?
I'm using the code:
rows = doc.search('//table[@id="table_1"]/tbody/tr')
details = rows.collect do |row|
detail = {}
[
[:word, 'td[1]/text()'],
[:meaning, 'td[6]/font'],
].collect do |name, xpath|
detail[name] = row.at_xpath(xpath).to_s.strip
end
detail
end
Using Xpath:
[:meaning, 'td[6]/font']
generates
:meaning: ! '<font size="3">asking for information specifying <font
color="#CC0000" size="3">what is your name?</font> /what/ as in, <font color="#CC0000" size="3">I'm not sure what you mean</font>
/what/ as in <a style="text-decoration: none;" href="http://somesecretlink.com">what</a></font>
On the other hand, using Xpath:
'td/font/text()'
generates
:meaning: asking for information specifying
thus ignoring all children of the node. What I want to achieve is this
:meaning: asking for information specifying what is your name? /what/ as in, I'm not sure what you mean /what/ as in what? I can't hear you
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（2）
这取决于您需要提取什么。如果您想要字体元素中的所有文本，可以使用以下 xpath 来实现：
它提取字体标签中的所有文本节点。如果您想要单元格中的所有文本节点，那么：
您还可以在 Nokogiri 节点上调用
text方法：This depends on what you need to extract. If you want all text in font elements, you can do it with the following xpath:
It extracts all text nodes in font tags. If you want all text nodes in the cell, then:
You can also call the
textmethod on a Nokogiri node:前几天我添加了同一类问题的答案。这是一个非常简单的过程。
看一下：转换使用 ruby 将 HTML 转换为纯文本并维护结构/格式
I added an answer for this same sort of question the other day. It's a very easy process.
Take a look at: Convert HTML to plain text and maintain structure/formatting, with ruby