在Rails 2.x中扩展“ String”类

Question

我正在这样写String类的扩展：

#/lib/string.rb
Class String
   def linkme
     return self.gsub("[/link]", "</a>").gsub("[link=", "<a href='").gsub("]", "' target='_new'>")
   end
end

但是，当我在控制台中调用它时，得到以下信息：

>>require 'lib/string'
SyntaxError: ./lib/string.rb:5: syntax error, unexpected kEND, expecting $end
    from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /home/path/to/vendor/rails/activesupport/lib/active_support/dependencies.rb:153:in `require'
    from /home/path/to/vendor/rails/activesupport/lib/active_support/dependencies.rb:521:in `new_constants_in'
    from /home/path/to/vendor/rails/activesupport/lib/active_support/dependencies.rb:153:in `require'
    from (irb):11

我认为这应该在理论上可行，因为我没有任何...

<geek_humor> loose "end"s </geek_humor>

这是我真正尝试在Ruby中扩展此类的第一次尝试，我认为我做得不错，但是也许S / O社区可以帮助我总结一下。

Answer 1

这对你有用

class String
  def linkme
    self.gsub("[/link]", "</a>").gsub("[link=", "<a href='").gsub("]", "' target='_new'>")
  end
end