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* lib/rss/taxonomy.rb: implemented taxonomy module.
* test/rss/test_taxonomy.rb: added tests for taxonomy support. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@9555 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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3 changed files with 335 additions and 15 deletions
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Thu Nov 17 17:53:30 2005 Kouhei Sutou <kou@cozmixng.org>
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* lib/rss/taxonomy.rb: implemented taxonomy module.
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* test/rss/test_taxonomy.rb: added tests for taxonomy support.
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Thu Nov 17 17:40:19 2005 Kouhei Sutou <kou@cozmixng.org>
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* lib/rss/1.0.rb: added rdf:Bag.
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@ -1,32 +1,198 @@
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# Experimental
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require "rss/1.0"
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require "rss/dublincore"
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module RSS
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TAXO_PREFIX = "taxo"
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TAXO_NS = "http://purl.org/rss/1.0/modules/taxonomy/"
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TAXO_URI = "http://purl.org/rss/1.0/modules/taxonomy/"
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Element.install_ns(TAXO_PREFIX, TAXO_NS)
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RDF.install_ns(TAXO_PREFIX, TAXO_URI)
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TAXO_ELEMENTS = []
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%w(link).each do |name|
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full_name = "#{TAXO_PREFIX}_#{name}"
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BaseListener.install_get_text_element(TAXO_NS, name, "#{full_name}=")
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BaseListener.install_get_text_element(TAXO_URI, name, "#{full_name}=")
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TAXO_ELEMENTS << "#{TAXO_PREFIX}_#{name}"
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end
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%w(topic topics).each do |name|
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class_name = Utils.to_class_name(name)
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BaseListener.install_class_name(TAXO_URI, name, "Taxo#{class_name}")
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TAXO_ELEMENTS << "#{TAXO_PREFIX}_#{name}"
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end
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module TaxoTopicsModel
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extend BaseModel
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module TaxonomyModel
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attr_writer(*%w(title description creator subject publisher
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contributor date format identifier source
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language relation coverage rights
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).collect{|name| "#{TAXO_PREFIX}_#{name}"})
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def self.append_features(klass)
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super
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var_name = "#{TAXO_PREFIX}_topics"
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klass.install_have_child_element(var_name)
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end
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def taxo_validate(tags)
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found_topics = false
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tags.each do |tag|
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if tag == "topics"
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if found_topics
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raise TooMuchTagError.new(tag, tag_name)
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else
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found_topics = true
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end
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else
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raise UnknownTagError.new(tag, TAXO_URI)
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end
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end
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end
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class TaxoTopics < Element
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include RSS10
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Bag = ::RSS::RDF::Bag
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class << self
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def required_prefix
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TAXO_PREFIX
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end
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def required_uri
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TAXO_URI
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end
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end
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@tag_name = "topics"
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install_have_child_element("Bag")
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install_must_call_validator('rdf', ::RSS::RDF::URI)
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def initialize(bag=Bag.new)
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super()
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@Bag = bag
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end
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def full_name
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tag_name_with_prefix(TAXO_PREFIX)
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end
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def to_s(need_convert=true, indent=calc_indent)
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rv = tag(indent) do |next_indent|
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[
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Bag_element(need_convert, next_indent),
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other_element(need_convert, next_indent),
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]
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end
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end
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private
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def children
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[@Bag]
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end
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def _tags
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rv = []
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rv << [::RSS::RDF::URI, 'Bag'] unless @Bag.nil?
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rv
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end
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def rdf_validate(tags)
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_validate(tags, [["Bag", nil]])
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end
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end
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end
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class Channel; extend TaxonomyModel; end
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class Item; extend TaxonomyModel; end
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class Image; extend TaxonomyModel; end
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class TextInput; extend TaxonomyModel; end
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module TaxoTopicModel
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extend BaseModel
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def self.append_features(klass)
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super
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var_name = "#{TAXO_PREFIX}_topic"
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klass.install_have_children_element(var_name)
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end
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def taxo_validate(tags)
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tags.each do |tag|
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if tag != "topic"
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raise UnknownTagError.new(tag, TAXO_URI)
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end
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end
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end
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class TaxoTopic < Element
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include RSS10
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include DublinCoreModel
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include TaxoTopicsModel
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class << self
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def required_prefix
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TAXO_PREFIX
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end
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def required_uri
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TAXO_URI
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end
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end
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@tag_name = "topic"
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install_get_attribute("about", ::RSS::RDF::URI, true)
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install_text_element("#{TAXO_PREFIX}_link")
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def initialize(about=nil)
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super()
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@about = about
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end
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def full_name
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tag_name_with_prefix(TAXO_PREFIX)
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end
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def to_s(need_convert=true, indent=calc_indent)
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rv = tag(indent) do |next_indent|
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[
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link_element(need_convert, next_indent),
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other_element(need_convert, next_indent),
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]
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end
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end
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def taxo_validate(tags)
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elements = %w(link topics)
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counter = {}
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tags.each do |tag|
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if elements.include?(tag)
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counter[tag] ||= 0
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counter[tag] += 1
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raise TooMuchTagError.new(tag, tag_name) if counter[tag] > 1
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else
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raise UnknownTagError.new(tag, TAXO_URI)
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end
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end
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end
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private
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def children
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[@taxo_link, @taxo_topics]
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end
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def _tags
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rv = []
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rv << [TAXO_URI, "link"] unless @taxo_link.nil?
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rv << [TAXO_URI, "topics"] unless @taxo_topics.nil?
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rv
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end
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end
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end
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class RDF
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include TaxoTopicModel
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class Channel
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include TaxoTopicsModel
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end
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class Item; include TaxoTopicsModel; end
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end
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end
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148
test/rss/test_taxonomy.rb
Normal file
148
test/rss/test_taxonomy.rb
Normal file
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require "cgi"
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require "rss-testcase"
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require "rss/1.0"
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require "rss/2.0"
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require "rss/taxonomy"
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module RSS
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class TestTaxonomy < TestCase
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def setup
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@prefix = "taxo"
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@uri = "http://purl.org/rss/1.0/modules/taxonomy/"
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@dc_prefix = "dc"
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@dc_uri = "http://purl.org/dc/elements/1.1/"
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@ns = {
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@prefix => @uri,
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@dc_prefix => @dc_uri,
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}
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@parents = %w(channel item)
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@topics_lis = [
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"http://meerkat.oreillynet.com/?c=cat23",
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"http://meerkat.oreillynet.com/?c=47",
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"http://dmoz.org/Computers/Data_Formats/Markup_Languages/XML/",
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]
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@topics_node = "<#{@prefix}:topics>\n"
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@topics_node << " <rdf:Bag>\n"
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@topics_lis.each do |value|
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resource = CGI.escapeHTML(value)
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@topics_node << " <rdf:li resource=\"#{resource}\"/>\n"
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end
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@topics_node << " </rdf:Bag>\n"
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@topics_node << "</#{@prefix}:topics>"
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@topic_topics_lis = \
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[
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"http://meerkat.oreillynet.com/?c=cat23",
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"http://dmoz.org/Computers/Data_Formats/Markup_Languages/SGML/",
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"http://dmoz.org/Computers/Programming/Internet/",
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]
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@topic_contents = \
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[
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{
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:link => "http://meerkat.oreillynet.com/?c=cat23",
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:title => "Data: XML",
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:description => "A Meerkat channel",
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},
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{
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:link => "http://dmoz.org/Computers/Data_Formats/Markup_Languages/XML/",
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:title => "XML",
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:subject => "XML",
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:description => "DMOZ category",
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:topics => @topic_topics_lis,
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}
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]
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@topic_nodes = @topic_contents.collect do |info|
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link = info[:link]
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rv = "<#{@prefix}:topic rdf:about=\"#{link}\">\n"
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info.each do |name, value|
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case name
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when :topics
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rv << "<#{@prefix}:topics>\n"
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rv << " <rdf:Bag>\n"
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value.each do |li|
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resource = CGI.escapeHTML(li)
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rv << " <rdf:li resource=\"#{resource}\"/>\n"
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end
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rv << " </rdf:Bag>\n"
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rv << "</#{@prefix}:topics>"
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else
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prefix = (name == :link ? @prefix : @dc_prefix)
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rv << " <#{prefix}:#{name}>#{value}</#{prefix}:#{name}>\n"
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end
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end
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rv << "</#{@prefix}:topic>"
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end.join("\n")
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@rss_source = make_RDF(<<-EOR, @ns)
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#{make_channel(@topics_node)}
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#{make_image()}
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#{make_item(@topics_node)}
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#{make_textinput()}
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#{@topic_nodes}
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EOR
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@rss = Parser.parse(@rss_source)
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end
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def test_parser
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assert_nothing_raised do
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Parser.parse(@rss_source)
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end
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assert_too_much_tag("topics", "channel") do
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Parser.parse(make_RDF(<<-EOR, @ns))
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#{make_channel(@topics_node * 2)}
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#{make_item()}
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EOR
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end
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assert_too_much_tag("topics", "item") do
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Parser.parse(make_RDF(<<-EOR, @ns))
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#{make_channel()}
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#{make_item(@topics_node * 2)}
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EOR
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end
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end
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def test_accessor
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topics = @rss.channel.taxo_topics
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assert_equal(@topics_lis.sort,
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topics.Bag.lis.collect {|li| li.resource}.sort)
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assert_equal(@rss.taxo_topics.first, @rss.taxo_topic)
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@topic_contents.each_with_index do |info, i|
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topic = @rss.taxo_topics[i]
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info.each do |name, value|
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case name
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when :link
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assert_equal(value, topic.about)
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assert_equal(value, topic.taxo_link)
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when :topics
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assert_equal(value.sort,
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topic.taxo_topics.Bag.lis.collect {|li| li.resource}.sort)
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else
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assert_equal(value, topic.__send__("dc_#{name}"))
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end
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end
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end
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end
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def test_to_s
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@parents.each do |parent|
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meth = "taxo_topics_element"
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assert_equal(@topics_node, @rss.__send__(parent).funcall(meth))
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end
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end
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end
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end
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