如何在 HTML 特殊实体中使用 Ruby 重音字符进行转换

Question

我怎样才能在 Ruby 上做到这一点？

puts some_method("ò")
# => "ò"

换句话说，将像 ò 这样的重音字符转换为他的 HTML 版本： ò

我尝试了这样的操作：

# 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

感谢您的宝贵时间！

• 列奥纳多

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上编码为 UTF-8！

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