如何在Ruby正则表达式中匹配韩文字符？ [英] How can I match Korean characters in a Ruby regular expression?

问题描述

我对使用正则表达式的用户名进行了一些基本验证，例如 [\w -_] + ，我想添加对韩文字母的支持，同时

I have some basic validations for usernames using regular expressions, something like [\w-_]+, and I want to add support for Korean alphabet, while still keeping the validation the same.

我不想允许特殊字符，例如 {} []！@＃$％^& ; *（）等，我只想将 \w 替换为与给定字母匹配的内容，除了 [a-zA-Z0-9] 。

I don't want to allow special characters, such as {}[]!@#$%^&*() etc., I just want to replace the \w with something that matches a given alphabet in addition to [a-zA-Z0-9].

这表示用户名，例如안녕应该是有效的，但不是안녕[] 。

Which means username like 안녕 should be valid, but not 안녕[].

我需要在Ruby 1.9中做到这一点。 / p>

I need to do this in Ruby 1.9.

推荐答案

您可以测试以下无效字符：

You can test for invalid characters like this:

#encoding: utf-8
def valid_name?(name)
  !name.match(/[^a-zA-Z0-9\p{Hangul}]/)
end

ar = %w(안녕 name 안녕[].)
ar.each{|name| puts "#{name} is #{valid_name?(name) ? "valid" : "invalid"}."}
# 안녕 is valid.
# name is valid.
# 안녕[]. is invalid.

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