如何在 Ruby 1.9 上替换 Unicode gem?

问题描述

很遗憾，Unicode 0.1 (sudo gem install unicode) 不适用于 Ruby 1.9.我有以下片段:

Unfortunately, the Unicode 0.1 (sudo gem install unicode) doesn't work on Ruby 1.9. I have the following snippet:

require "rubygems"
require "unicode"

str = "áéíóúç"
Unicode.normalize_KD(str).gsub(/[^x00-x7F]/n, "")
#=> aeiouc

我使用它将标题转换为永久链接，而不删除重音字符.

I use it to convert titles to permalink, without removing accented characters.

有没有办法使用 pack 或 unpack 方法转换这些文本?

Is there a way of converting such texts using pack or unpack methods?

推荐答案

更新: 更好的选择可能是使用 gem unicode_utils 专为这些缺失的功能而创建:

Update: a better option may be to use the gem unicode_utils that was created specifically for these missing features:

require "unicode_utils"
UnicodeUtils.nfkd("áéíóúç").gsub(/[^x00-x7F]/,'').to_s
#=> "aeiouc"

是否有可能依赖 Rails 的 ActiveSupport?然后您可以执行以下操作:

---

Is there a possibility you can depend on Rails' ActiveSupport? Then you can do the following:

require "activesupport"
mb_str = ActiveSupport::Multibyte::Chars.new("áéíóúç")
mb_str.normalize(:kd).gsub(/[^x00-x7F]/,'').to_s
#=> "aeiouc"

ActiveSupport::Multibyte 被编写来为 Ruby 1.8 带来 UTF-8/Unicode 支持，但在 1.9 中也可以正常工作.你也许可以借用一些代码 如果您不希望它作为外部依赖项.

ActiveSupport::Multibyte was written to bring UTF-8/Unicode support to Ruby 1.8, but works fine in 1.9 too. You may be able to borrow some of the code if you don't want it as an external dependency.

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