Ruby 正则表达式错误：不兼容的编码正则表达式匹配（ASCII-8BIT 正则表达式与 UTF-8 字符串）
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Ruby Regex Error: incompatible encoding regexp match (ASCII-8BIT regexp with UTF-8 string)
提问by Shpigford
I'm getting two errors, both revolving around encoding and both related.
我收到两个错误，都与编码有关，而且都相关。
The first error (technically, a warning) I get when starting up WEBrick:
启动 WEBrick 时出现的第一个错误（技术上是警告）：
/Users/USERNAME/example/config/initializers/bb-ruby.rb:54: warning: invalid Unicode Property \P: /\:\-?\P/
The line it's referring to is: /\:\-?\P/,
它所指的行是： /\:\-?\P/,
It's just a bit of regex, ultimately part of this block:
这只是一点正则表达式，最终是这个块的一部分：
@@tags['Razzing'] = [
/\:\-?\P/,
'<img src="/assets/emoticons/razzing.png">',
'Razzing',
':P',
:razzing]
Then, I also get the following error when parsing some strings (presumably due to this same line)...
然后，我在解析某些字符串时也会收到以下错误（大概是由于同一行）...
Encoding::CompatibilityError
incompatible encoding regexp match (ASCII-8BIT regexp with UTF-8 string)
I'm running Ruby 1.9.2 and Rails 3.2.1.
我正在运行 Ruby 1.9.2 和 Rails 3.2.1。
回答by Fábio Batista
Your Regex is being "compiled" as ASCII-8BIT.
您的正则表达式正在“编译”为 ASCII-8BIT。
Just add the encoding declaration at the top of the file where the Regex is declared:
只需在声明 Regex 的文件顶部添加编码声明：
# encoding: utf-8
And you're done. Now, when Ruby is parsing your code, it will assume every literal you use (Regex, String, etc) is specified in UTF-8 encoding.
你已经完成了。现在，当 Ruby 解析您的代码时，它会假设您使用的每个文字（正则表达式、字符串等）都是以 UTF-8 编码指定的。
UPDATE:UTF-8is now the default encoding for Ruby 2.0 and beyond.
更新：UTF-8现在是 Ruby 2.0 及更高版本的默认编码。
