在Rails 2.x中擴展“ String”類

Question

我正在這樣寫String類的擴展：

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

但是，當我在控制台中調用它時，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

我認為這應該在理論上可行，因為我沒有任何...

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

這是我真正嘗試在Ruby中擴展此類的第一次嘗試，我認為我做得不錯，但是也許S / O社區可以幫助我總結一下。

Answer 1

這對你有用

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