From 59532a9fd20fa906367310932cf87680cc9ecbea Mon Sep 17 00:00:00 2001
From: murphy <murphy@rubychan.de>
Date: Thu, 28 Aug 2008 04:55:59 +0000
Subject: Added CodeRay.for_redcloth with test and documentation. * Tested with
 RedCloth 4.0.3. * Also added :ee task for the Ruby Enterprise Edition
 (rubyee).

---
 Rakefile                    |  4 ++++
 lib/coderay.rb              |  1 +
 lib/coderay/for_redcloth.rb | 54 +++++++++++++++++++++++++++++++++++++++++++++
 test/functional/basic.rb    |  7 ++++++
 4 files changed, 66 insertions(+)
 create mode 100644 lib/coderay/for_redcloth.rb

diff --git a/Rakefile b/Rakefile
index 5482cd9..8894a7d 100644
--- a/Rakefile
+++ b/Rakefile
@@ -51,6 +51,10 @@ task 'rubinius' do
   RUBY.replace 'rbx'
 end
 
+task 'ee' do
+  RUBY.replace 'rubyee'
+end
+
 for task_file in Dir['rake_tasks/*.rake']
   load task_file
 end
diff --git a/lib/coderay.rb b/lib/coderay.rb
index 1f067db..c1025c7 100644
--- a/lib/coderay.rb
+++ b/lib/coderay.rb
@@ -141,6 +141,7 @@ module CodeRay
   require 'coderay/encoder'
   require 'coderay/duo'
   require 'coderay/style'
+  require 'coderay/for_redcloth'
 
 
   class << self
diff --git a/lib/coderay/for_redcloth.rb b/lib/coderay/for_redcloth.rb
new file mode 100644
index 0000000..4de597e
--- /dev/null
+++ b/lib/coderay/for_redcloth.rb
@@ -0,0 +1,54 @@
+# A little hack to enable CodeRay highlighting in RedCloth.
+
+module CodeRay
+  
+  # A little hack to enable CodeRay highlighting in RedCloth.
+  # 
+  # Usage:
+  #  require 'coderay'
+  #  CodeRay.for_redcloth
+  #  RedCloth.new('@[ruby]puts "Hello, World!"@').to_html
+  # 
+  # Make sure you have RedCloth 4.0.3 activated, for example by calling
+  #  require 'rubygems'
+  # before RedCloth is loaded and before calling CodeRay.for_redcloth.
+  def self.for_redcloth
+    gem 'RedCloth', '>= 4.0.3' rescue nil
+    require 'redcloth'
+    raise 'CodeRay.for_redcloth needs RedCloth 4.0.3 or later.' unless RedCloth::VERSION.to_s >= '4.0.3'
+    RedCloth::TextileDoc.send :include, ForRedCloth::TextileDoc
+    RedCloth::Formatters::HTML.module_eval do
+      undef_method :code, :bc_open, :bc_close
+      def code(opts)
+        opts[:block] = true
+        if opts[:lang] && !filter_coderay
+          require 'coderay'
+          @in_bc ||= nil
+          format = @in_bc ? :div : :span
+          highlighted_code = CodeRay.encode opts[:text], opts[:lang], format, :stream => true
+          highlighted_code.sub(/\A<(span|div)/) { |m| m + pba(@in_bc || opts) }
+        else
+          "<code#{pba(opts)}>#{opts[:text]}</code>"
+        end
+      end
+      def bc_open(opts)
+        opts[:block] = true
+        @in_bc = opts
+        opts[:lang] ? '' : "<pre#{pba(opts)}>"
+      end
+      def bc_close(opts)
+        @in_bc = nil
+        opts[:lang] ? '' : "</pre>\n"
+      end
+    end
+  end
+  
+  module ForRedCloth # :nodoc:
+    
+    module TextileDoc # :nodoc:
+      attr_accessor :filter_coderay
+    end
+    
+  end
+  
+end
diff --git a/test/functional/basic.rb b/test/functional/basic.rb
index 5e0e759..07818ea 100755
--- a/test/functional/basic.rb
+++ b/test/functional/basic.rb
@@ -34,6 +34,13 @@ class BasicTest < Test::Unit::TestCase
       CodeRay::Duo[:plain, :plain].highlight(RUBY_TEST_CODE, :stream => true))
   end
   
+  def test_for_redcloth
+    require 'rubygems'
+    CodeRay.for_redcloth
+    assert_equal '<p><span lang="ruby" class="CodeRay">puts <span style="background-color:#fff0f0"><span style="color:#710">&quot;</span><span style="color:#D20">Hello, World!</span><span style="color:#710">&quot;</span></span></span></p>',
+      RedCloth.new('@[ruby]puts "Hello, World!"@').to_html
+  end
+  
   ENCODERS_LIST = %w(
     count debug div html null page span statistic text tokens xml yaml
   )
-- 
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