This commit was manufactured by cvs2svn to create branch 'ruby_1_8'.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@6238 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 62 insertions, 0 deletions

diff --git a/lib/rss/dublincore.rb b/lib/rss/dublincore.rb
new file mode 100644
index 0000000000..dcf8e46c65
--- /dev/null
+++ b/lib/rss/dublincore.rb
@@ -0,0 +1,62 @@
+require "rss/1.0"
+
+module RSS
+
+	DC_PREFIX = 'dc'
+	DC_URI = "http://purl.org/dc/elements/1.1/"
+	
+	RDF.install_ns(DC_PREFIX, DC_URI)
+
+	module DublinCoreModel
+
+		extend BaseModel
+
+		ELEMENTS = []
+
+		def self.included(mod)
+			mod.module_eval(<<-EOC)
+				%w(title description creator subject publisher
+						contributor type format identifier source
+						language relation coverage rights).each do |x|
+					install_text_element("\#{DC_PREFIX}_\#{x}")
+				end
+
+				%w(date).each do |x|
+					install_date_element("\#{DC_PREFIX}_\#{x}", 'w3cdtf', x)
+				end
+			EOC
+		end
+
+		def dc_validate(tags)
+			counter = {}
+			ELEMENTS.each do |x|
+				counter[x] = 0
+			end
+
+			tags.each do |tag|
+				key = "#{DC_PREFIX}_#{tag}"
+				raise UnknownTagError.new(tag, DC_URI)  unless counter.has_key?(key)
+				counter[key] += 1
+				raise TooMuchTagError.new(tag, tag_name) if counter[key] > 1
+			end
+		end
+
+	end
+
+	# For backward compatibility
+	DublincoreModel = DublinCoreModel
+
+	class RDF
+		class Channel; include DublinCoreModel; end
+		class Image; include DublinCoreModel; end
+		class Item; include DublinCoreModel; end
+		class Textinput; include DublinCoreModel; end
+	end
+
+	prefix_size = DC_PREFIX.size + 1
+	DublinCoreModel::ELEMENTS.uniq!
+	DublinCoreModel::ELEMENTS.each do |x|
+		BaseListener.install_get_text_element(x[prefix_size..-1], DC_URI, "#{x}=")
+	end
+
+end