如何使Nokogiri透明地返回未编码的Html实体？ [英] How to make Nokogiri transparently return un/encoded Html entities untouched?

问题描述

ie：

<$>

如何使用Nokogiri使html实体（如德语变音符号） p $ p> ＃这是好的
node = Nokogiri :: HTML.fragment（'< p& ouml;< / p>'）
node.to_s ＃=> '< p>& ouml;< / p>'

＃这不是
node = Nokogiri :: HTML.fragment（'< p>< / p> '）
node.to_s＃=> '< p>& ouml;< / p>'

＃这就是我需要的
node = Nokogiri :: HTML.fragment（'< p>< / p>'）
node.to_s＃=> '< p>ö< / p>'


我已经尝试了PARSE_OPTIONS和：save_with选项，但不能想出一种方法让Nokogiri的透明行为如上。

任何指针？

解决方案

好的，我的问题已经由Aaron通过 twitter / gist ：

  require'rubygems'
 require'nokogiri'
 
 doc = Nokogiri :: HTML :: Document.new 
 doc.encoding ='UTF-8 '
 
＃我们为1.4.2版本添加了一个上下文片段方法。这*可能* 
＃在1.4.1中工作。如果你想捣乱1.4.2，从我的github构建，或
＃抓住我们每晚的构建之一：
＃
＃$ sudo gem install nokogiri -s http：// tenderlovemaking .com / 
＃
＃另外，libxml2在处理UTF-8片段时有一个编码错误，所以我
＃建议你也升级到libxml2 2.7.7。 
＃
＃希望有所帮助！ 
 puts doc.fragment（'< p>ö< / p>'）
  

How can I use Nokogiri with having html entities (like German umlauts) untouched?

I.e.:

# this is fine
node = Nokogiri::HTML.fragment('<p>&ouml;</p>')
node.to_s # => '<p>&ouml;</p>'

# this is not
node = Nokogiri::HTML.fragment('<p>ö</p>')
node.to_s # => '<p>&ouml;</p>'

# this is what I need
node = Nokogiri::HTML.fragment('<p>ö</p>')
node.to_s # => '<p>ö</p>'

I've tried to mess with both PARSE_OPTIONS and :save_with options but could not come up with a way to have Nokogiri just transparently behave like above.

Any pointers?

解决方案

Ok, my question has been answered by Aaron via twitter/gist:

require 'rubygems'
require 'nokogiri'

doc = Nokogiri::HTML::Document.new
doc.encoding = 'UTF-8'

# We added a contextual fragment method for the 1.4.2 release. This *might*
# work in 1.4.1. If you want to mess with 1.4.2, build from my github, or
# grab one of our nightly builds:
#
# $ sudo gem install nokogiri -s http://tenderlovemaking.com/
#
# Also, libxml2 had a bug with encoding when handling UTF-8 fragments, so I
# suggest you also upgrade to libxml2 2.7.7.
#
# Hope that helps!
puts doc.fragment('<p>ö</p>')

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