如何在Ruby中将字符引用转换为UTF-8字符串？ [英] How can I convert character references to UTF-8 strings in Ruby?
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问题描述
我有一些来自Feed的内容。在这些Feed中，UTF-8字符通常被编码为字符引用，即å是&＃xE5;。为了避免在我的视图（即& amp;＃xE5;）中进行双重编码，我想将它们转换回正常的UTF_8字符。我如何在Ruby中这样做？
I have some content from feeds. In these feeds, UTF-8 characters are often encoded as character references, ie "å" is "å". To avoid double encoding these in my views (ie "å") I want to convert these back to normal UTF_8 characters. How can I do this in Ruby?
我想要：
&＃xE5;。convert_to_utf8 =>å
"å".convert_to_utf8 => "å"
推荐答案
HTMLEntities gem旨在做到这一点。
The HTMLEntities gem is designed to do just this.
require 'htmlentities'
coder = HTMLEntities.new
string = "élan"
coder.decode(string) # => "élan"
# or
string.decode_entities # => "élan"
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