1 files changed, 101 insertions, 0 deletions
diff --git a/ruby_1_8_5/lib/rss/xml-stylesheet.rb b/ruby_1_8_5/lib/rss/xml-stylesheet.rb
new file mode 100644
index 0000000000..66e3161dd0
--- /dev/null
+++ b/ruby_1_8_5/lib/rss/xml-stylesheet.rb
@@ -0,0 +1,101 @@
+require "rss/utils"
+
+module RSS
+
+  module XMLStyleSheetMixin
+    attr_accessor :xml_stylesheets
+    def initialize(*args)
+      super
+      @xml_stylesheets = []
+    end
+    
+    private
+    def xml_stylesheet_pi
+      xsss = @xml_stylesheets.collect do |xss|
+        pi = xss.to_s
+        pi = nil if /\A\s*\z/ =~ pi
+        pi
+      end.compact
+      xsss.push("") unless xsss.empty?
+      xsss.join("\n")
+    end
+  end
+
+  class XMLStyleSheet
+
+    include Utils
+
+    ATTRIBUTES = %w(href type title media charset alternate)
+
+    GUESS_TABLE = {
+      "xsl" => "text/xsl",
+      "css" => "text/css",
+    }
+
+    attr_accessor(*ATTRIBUTES)
+    attr_accessor(:do_validate)
+    def initialize(*attrs)
+      @do_validate = true
+      ATTRIBUTES.each do |attr|
+        __send__("#{attr}=", nil)
+      end
+      vars = ATTRIBUTES.dup
+      vars.unshift(:do_validate)
+      attrs.each do |name, value|
+        if vars.include?(name.to_s)
+          __send__("#{name}=", value)
+        end
+      end
+    end
+
+    def to_s
+      rv = ""
+      if @href
+        rv << %Q[<?xml-stylesheet]
+        ATTRIBUTES.each do |name|
+          if __send__(name)
+            rv << %Q[ #{name}="#{h __send__(name)}"]
+          end
+        end
+        rv << %Q[?>]
+      end
+      rv
+    end
+
+    remove_method(:href=)
+    def href=(value)
+      @href = value
+      if @href and @type.nil?
+        @type = guess_type(@href)
+      end
+      @href
+    end
+
+    remove_method(:alternate=)
+    def alternate=(value)
+      if value.nil? or /\A(?:yes|no)\z/ =~ value
+        @alternate = value
+      else
+        if @do_validate
+          args = ["?xml-stylesheet?", %Q[alternate="#{value}"]]
+          raise NotAvailableValueError.new(*args)
+        end
+      end
+      @alternate
+    end
+
+    def setup_maker(maker)
+      xss = maker.xml_stylesheets.new_xml_stylesheet
+      ATTRIBUTES.each do |attr|
+        xss.__send__("#{attr}=", __send__(attr))
+      end
+    end
+    
+    private
+    def guess_type(filename)
+      /\.([^.]+)$/ =~ filename
+      GUESS_TABLE[$1]
+    end
+
+  end
+end