Added syntax highlightment for repository files (using CodeRay).

Supported languages: c, ruby, rhtml, yaml, html, xml.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@644 e93f8b46-1217-0410-a6f0-8f06a7374b81

vendor/plugins/coderay-0.7.6.227/lib/coderay/encoders/xml.rb

@@ -0,0 +1,70 @@
+module CodeRay
+module Encoders
+
+  # = XML Encoder
+  #
+  # Uses REXML. Very slow.
+  class XML < Encoder
+
+    include Streamable
+    register_for :xml
+
+    FILE_EXTENSION = 'xml'
+
+    require 'rexml/document'
+
+    DEFAULT_OPTIONS = {
+      :tab_width => 8,
+      :pretty => -1,
+      :transitive => false,
+    }
+
+  protected
+
+    def setup options
+      @doc = REXML::Document.new
+      @doc << REXML::XMLDecl.new
+      @tab_width = options[:tab_width]
+      @root = @node = @doc.add_element('coderay-tokens')
+    end
+
+    def finish options
+      @doc.write @out, options[:pretty], options[:transitive], true
+      @out
+    end
+    
+    def text_token text, kind
+      if kind == :space
+        token = @node
+      else
+        token = @node.add_element kind.to_s
+      end
+      text.scan(/(\x20+)|(\t+)|(\n)|[^\x20\t\n]+/) do |space, tab, nl|
+        case
+        when space
+          token << REXML::Text.new(space, true)
+        when tab
+          token << REXML::Text.new(tab, true)
+        when nl
+          token << REXML::Text.new(nl, true)
+        else
+          token << REXML::Text.new($&)
+        end
+      end
+    end
+
+    def open_token kind
+      @node = @node.add_element kind.to_s
+    end
+
+    def close_token kind
+      if @node == @root
+        raise 'no token to close!'
+      end
+      @node = @node.parent
+    end
+
+  end
+
+end
+end