redmine 1.0.2 Wikiの<pre>に赤字を表示するパッチ

textile_color_pre_path.rb

require 'redcloth3'
require 'redmine/syntax_highlighting'
require 'redmine/wiki_formatting/textile/formatter'

module Redmine
  module WikiFormatting
    module Textile
      class Formatter < RedCloth3
        alias :smooth_offtags_orgin :smooth_offtags

        private

        def smooth_offtags( text )
          unless @pre_list.empty?
            ## replace <pre> content
            text.gsub!(/<redpre#(\d+)>/) do
              content = @pre_list[$1.to_i]
              if content.match(/<code\s+class="(color)">\s?(.+)/m)
                content = "<code>" + ERB::Util.html_escape($2).gsub('##(', '<span style="color:#F00">').gsub(')##', '</span>')
              elsif content.match(/<code\s+class="(\w+)">\s?(.+)/m)
                content = "<code class=\"#{$1} syntaxhl\">" +
                  Redmine::SyntaxHighlighting.highlight_by_language($2, $1)
              end
              content
            end
          end
        end
      end
    end
  end
end