Update RedCloth to 4.x

Use Bundler to manage RedCloth
gem. 4.x should be much faster
and less buggy. Unfortunately,
it doesn't support mixed
Textile/Markdown syntax. So
we keep an (appropriately
renamed) copy of 3.x around,
for the users of the "Mixed"
text filter.

Gemfile

@@ -3,6 +3,7 @@ gem "sqlite3-ruby", :require => "sqlite3"
 gem "itextomml", ">=1.4.5"
 gem "mongrel", ">=1.2.0.pre2"
 gem "rubyzip"
+gem "RedCloth", ">=4.0.0"
 gem "erubis"
 gem "nokogiri"
 gem "rake"

app/controllers/wiki_controller.rb

@@ -478,7 +478,7 @@ EOL
             "<meta http-equiv=\"Refresh\" content=\"0;URL=HomePage.#{html_ext}\" /></head></html>"
         end
         dir = Rails.root.join('public')
-        Dir["#{dir}/**/*"].each do |f|
+        Dir["#{dir}/{images,javascripts,s5,stylesheets}/**/*"].each do |f|
           zip_out.add "public#{f.sub(dir.to_s,'')}", f
         end
       end

lib/chunks/engines.rb

@@ -6,6 +6,7 @@ require 'maruku'
 require 'maruku/ext/math'
 require_dependency 'rdocsupport'
 require 'redcloth'
+require 'oldredcloth'
 
 # The markup engines are Chunks that call the one of RedCloth
 # or RDoc to convert text. This markup occurs when the chunk is required
@@ -113,7 +114,7 @@ module Engines
   class Mixed < AbstractEngine
     def mask
       @content.as_utf8
-      redcloth = RedCloth.new(@content, @content.options[:engine_opts])
+      redcloth = OldRedCloth.new(@content, @content.options[:engine_opts])
       redcloth.filter_html = false
       redcloth.no_span_caps = false
       html = redcloth.to_html

lib/oldredcloth.rb

@@ -164,7 +164,7 @@
 #
 #  class RedCloth::Textile.new( str )
 
-class RedCloth < String
+class OldRedCloth < String
 
     VERSION = '3.0.3'
     DEFAULT_RULES = [:textile, :markdown]

test/unit/page_renderer_test.rb

@@ -358,11 +358,12 @@ END_THM
     assert_match_markup_parsed_as(re, textile_and_markdown)
     set_web_property :markup, :textile
     assert_markup_parsed_as(
-      "<p>Markdown heading<br/>================</p>\n\n\n\t<h2>Textile heading</h2>" +
+      "<p>Markdown heading<br/>\n====</p>\n<h2>Textile heading</h2>" +
-      "\n\n\n\t<p><strong>some</strong> <b>text</b> <em>with</em> <del>styles</del></p>" +
+      "\n<p><strong>some</strong> <b>text</b> <em>with</em> <del>styles</del></p>" +
-      "\n\n\n\t<ul>\n\t<li>list 1</li>\n\t\t<li>list 2</li>\n\t</ul>",
+      "\n<ul>\n\t<li>list 1</li>\n\t<li>list 2</li>\n</ul>",
       textile_and_markdown)
 
+# Mixed Textile+Markdown markup not supported by RedCloth 4.x    
     set_web_property :markup, :mixed
     assert_markup_parsed_as(
       "<h1>Markdown heading</h1>\n\n\n\t<h2>Textile heading</h2>\n\n\n\t" +
@@ -371,6 +372,13 @@ END_THM
       textile_and_markdown)
   end
 
+  def test_textile_pre
+    set_web_property :markup, :textile
+     assert_markup_parsed_as("<pre>\n<code>\n  a == 16\n</code>\n</pre>\n<p>foo bar" +
+       "<br/>\n<pre><br/>\n<code>\n  b == 16\n</code><br/>\n</pre></p>",
+     "<pre>\n<code>\n  a == 16\n</code>\n</pre>\nfoo bar\n<pre>\n<code>\n  b == 16\n</code>\n</pre>")
+  end
+
   def test_rdoc
     set_web_property :markup, :rdoc
   
@@ -461,7 +469,7 @@ END_THM
     set_web_property :markup, :textile
     assert_markup_parsed_as(
       "<p>$$<span class='newWikiWord'>foo<a href='../show/foo'>?" +
-      "</a></span>$$<br/>$<span class='newWikiWord'>foo<a " +
+      "</a></span>$$<br/>\n$<span class='newWikiWord'>foo<a " +
       "href='../show/foo'>?</a></span>$</p>",
       "$$[[foo]]$$\n$[[foo]]$")
   end