如何在HTML特殊实体中使用Ruby重音字符进行转换

Question

我怎么能在Ruby上做到这一点？

puts some_method("ò")
# => "ò"

换句话说,将重音字符转换ò为HTML版本:ò

我试过这样的:

# coding: utf-8
require 'rubygems'
require 'htmlentities'
require 'unicode'

coder = HTMLEntities.new
string = "Scròfina"
puts coder.encode(string, :named)

但是我得到了这个(来自:http://htmlentities.rubyforge.org/):

/Library/Ruby/Gems/1.8/gems/htmlentities-4.2.0/lib/htmlentities/encoder.rb:85:in `unpack': malformed UTF-8 character (expected 2 bytes, given 1 bytes) (ArgumentError)
 from /Library/Ruby/Gems/1.8/gems/htmlentities-4.2.0/lib/htmlentities/encoder.rb:85:in `encode_decimal'
 from (eval):2:in `encode_extended'
 from /Library/Ruby/Gems/1.8/gems/htmlentities-4.2.0/lib/htmlentities/encoder.rb:18:in `encode'
 from /Library/Ruby/Gems/1.8/gems/htmlentities-4.2.0/lib/htmlentities/encoder.rb:18:in `gsub!'
 from /Library/Ruby/Gems/1.8/gems/htmlentities-4.2.0/lib/htmlentities/encoder.rb:18:in `encode'
 from /Library/Ruby/Gems/1.8/gems/htmlentities-4.2.0/lib/htmlentities.rb:74:in `encode'
 from unicode_pleasure.rb:8

感谢您的时间!

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Answer 1

我已明确设置$ KCODE以使您的示例正常工作.另外,请确保您的源文件实际编码为UTF-8!

# coding: utf-8
require 'rubygems'
require 'htmlentities'
require 'unicode'
$KCODE = 'UTF-8'
coder = HTMLEntities.new
string = "Scròfina"
puts coder.encode(string, :named)