require 'coderay/coderay'

class Plugins::Textfilters::CodeRayController < TextFilterPlugin::MacroPre
  plugin_display_name "CodeRay"
  plugin_description "Apply syntax highlighting to a code block using CodeRay"

  def self.help_text
    %{
You can use `<typo:coderay>` to include syntax-highlighted code blocks.  Example:

    <typo:coderay lang="ruby">
    class Foo
      def bar
        "abcde"
      end
    end
    </typo:coderay>

This uses the CodeRay (http://coderay.rubychan.de/) gem.  Options:

* **lang**.  Optional - defaults to `ruby`. Sets the programming language.  Currently supported languages are
`ruby`, `C`, `Delphi`, `HTML`, `RHTML`, `Nitro-XHTML`.  
}
  end

  def self.macrofilter(controller,content,attrib,params,text="")
    lang       = attrib['lang'] || 'ruby'
    tokens = CodeRay.scan(text.strip, lang)
    result = tokens.div(:line_numbers => :table)
		"<notextile>#{result}</notextile>"
  end

end