added chunks

lib/chunks/nowiki.rb

@@ -0,0 +1,28 @@
+require 'chunks/chunk'
+
+# This chunks allows certain parts of a wiki page to be hidden from the
+# rest of the rendering pipeline. It should be run at the beginning
+# of the pipeline in `wiki_content.rb`.
+#
+# An example use of this chunk is to markup double brackets or
+# auto URI links:
+#  <nowiki>Here are [[double brackets]] and a URI: www.uri.org</nowiki>
+#
+# The contents of the chunks will not be processed by any other chunk
+# so the `www.uri.org` and the double brackets will appear verbatim.
+#
+# Author: Mark Reid <mark at threewordslong dot com>
+# Created: 8th June 2004
+class NoWiki < Chunk::Abstract
+
+  NOWIKI_PATTERN = Regexp.new('<nowiki>(.*?)</nowiki>', Regexp::MULTILINE)
+  def self.pattern() NOWIKI_PATTERN end
+
+  attr_reader :plain_text
+
+  def initialize(match_data, content)
+    super
+    @plain_text = @unmask_text = match_data[1]
+  end
+
+end