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/html/css.rb

@@ -0,0 +1,65 @@
+module CodeRay
+module Encoders
+
+  class HTML
+    class CSS
+
+      attr :stylesheet
+
+      def CSS.load_stylesheet style = nil
+        CodeRay::Styles[style]
+      end
+
+      def initialize style = :default
+        @classes = Hash.new
+        style = CSS.load_stylesheet style
+        @stylesheet = [
+          style::CSS_MAIN_STYLES,
+          style::TOKEN_COLORS.gsub(/^(?!$)/, '.CodeRay ')
+        ].join("\n")
+        parse style::TOKEN_COLORS
+      end
+
+      def [] *styles
+        cl = @classes[styles.first]
+        return '' unless cl
+        style = ''
+        1.upto(styles.size) do |offset|
+          break if style = cl[styles[offset .. -1]]
+        end
+        raise 'Style not found: %p' % [styles] if $DEBUG and style.empty?
+        return style
+      end
+
+    private
+
+      CSS_CLASS_PATTERN = /
+        ( (?:                # $1 = classes
+          \s* \. [-\w]+
+        )+ )
+        \s* \{ \s*
+        ( [^\}]+ )?          # $2 = style
+        \s* \} \s*
+      |
+        ( . )                # $3 = error
+      /mx
+      def parse stylesheet
+        stylesheet.scan CSS_CLASS_PATTERN do |classes, style, error|
+          raise "CSS parse error: '#{error.inspect}' not recognized" if error
+          styles = classes.scan(/[-\w]+/)
+          cl = styles.pop
+          @classes[cl] ||= Hash.new
+          @classes[cl][styles] = style.to_s.strip
+        end
+      end
+
+    end
+  end
+
+end
+end
+
+if $0 == __FILE__
+  require 'pp'
+  pp CodeRay::Encoders::HTML::CSS.new
+end