查找并用Nokogiri替换整个HTML节点 [英] Find and replace entire HTML nodes with Nokogiri

问题描述

我有一个HTML，应该对其进行转换，将某些标签替换为另一个标签.

i have an HTML, that should be transformed, having some tags replaced with another tags.

我不知道这些标签，因为它们将来自数据库.因此，Nokogiri的set_attribute或name方法不适合我.

I don't know about these tags, because they will come from db. So, set_attribute or name methods of Nokogiri are not suitable for me.

在某种程度上，我需要这样做，就像下面的伪代码一样:

I need to do it, in a way, like in this pseudo-code:

def preprocess_content
  doc = Nokogiri::HTML( self.content )
  doc.css("div.to-replace").each do |div|
    # "get_html_text" will obtain HTML from db. It can be anything, even another tags, tag groups etc.
    div.replace self.get_html_text
  end
  self.content = doc.css("body").first.inner_html
end

我找到了Nokogiri::XML::Node::replace方法.我认为这是正确的方向.

I found Nokogiri::XML::Node::replace method. I think, it is the right direction.

此方法需要一些node_or_tags参数.

我应该使用哪种方法从文本创建一个新的Node并将其替换为当前的Node?

Which method should i use to create a new Node from text and replace the current one with it?

推荐答案

喜欢:

doc.css("div.to-replace").each do |div|
    new_node = doc.create_element "span"
    new_node.inner_html = self.get_html_text
    div.replace new_node
end

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