* lib/rss.rb, lib/rss/, test/rss/, sample/rss/: merged from trunk.

- 0.1.6 -> 2.0.0.
  - fixed image module URI. Thanks to Dmitry Borodaenko.
  - supported Atom.
  - supported ITunes module.
  - supported Slash module.

* NEWS: added an entry for RSS Parser.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@13747 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rss/utils.rb

@@ -4,14 +4,16 @@ module RSS
 
     # Convert a name_with_underscores to CamelCase.
     def to_class_name(name)
-      name.split(/_/).collect do |part|
+      name.split(/[_\-]/).collect do |part|
         "#{part[0, 1].upcase}#{part[1..-1]}"
       end.join("")
     end
     
     def get_file_and_line_from_caller(i=0)
       file, line, = caller[i].split(':')
-      [file, line.to_i]
+      line = line.to_i
+      line += 1 if i.zero?
+      [file, line]
     end
 
     # escape '&', '"', '<' and '>' for use in HTML.
@@ -33,5 +35,77 @@ module RSS
     def element_initialize_arguments?(args)
       [true, false].include?(args[0]) and args[1].is_a?(Hash)
     end
+
+    module YesCleanOther
+      module_function
+      def parse(value)
+        if [true, false, nil].include?(value)
+          value
+        else
+          case value.to_s
+          when /\Ayes\z/i
+            true
+          when /\Aclean\z/i
+            false
+          else
+            nil
+          end
+        end
+      end
+    end
+
+    module YesOther
+      module_function
+      def parse(value)
+        if [true, false].include?(value)
+          value
+        else
+          /\Ayes\z/i.match(value.to_s) ? true : false
+        end
+      end
+    end
+
+    module CSV
+      module_function
+      def parse(value, &block)
+        if value.is_a?(String)
+          value = value.strip.split(/\s*,\s*/)
+          value = value.collect(&block) if block_given?
+          value
+        else
+          value
+        end
+      end
+    end
+
+    module InheritedReader
+      def inherited_reader(constant_name)
+        base_class = inherited_base
+        result = base_class.const_get(constant_name)
+        found_base_class = false
+        ancestors.reverse_each do |klass|
+          if found_base_class
+            if klass.const_defined?(constant_name)
+              result = yield(result, klass.const_get(constant_name))
+            end
+          else
+            found_base_class = klass == base_class
+          end
+        end
+        result
+      end
+
+      def inherited_array_reader(constant_name)
+        inherited_reader(constant_name) do |result, current|
+          current + result
+        end
+      end
+
+      def inherited_hash_reader(constant_name)
+        inherited_reader(constant_name) do |result, current|
+          result.merge(current)
+        end
+      end
+    end
   end
 end