Initial revision

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3925 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rexml/namespace.rb

@@ -0,0 +1,47 @@
+require 'rexml/xmltokens'
+
+module REXML
+	# Adds named attributes to an object.
+	module Namespace
+		# The name of the object, valid if set
+		attr_reader :name, :expanded_name
+		# The expanded name of the object, valid if name is set
+		attr_accessor :prefix
+		include XMLTokens
+		NAMESPLIT = /^(?:(#{NCNAME_STR}):)?(#{NCNAME_STR})/u
+
+		# Sets the name and the expanded name
+		def name=( name )
+			@expanded_name = name
+			name =~ NAMESPLIT
+			if $1
+				@prefix = $1
+			else
+				@prefix = ""
+				@namespace = ""
+			end
+			@name = $2
+		end
+
+		# Compares names optionally WITH namespaces
+		def has_name?( other, ns=nil )
+			if ns
+				return (namespace() == ns and name() == other)
+			elsif other.include? ":"
+				return fully_expanded_name == other
+			else
+				return name == other
+			end
+		end
+
+		alias :local_name :name
+
+		# Fully expand the name, even if the prefix wasn't specified in the
+		# source file.
+		def fully_expanded_name
+			ns = prefix
+			return "#{ns}:#@name" if ns.size > 0 
+			return @name
+		end
+	end
+end