зеркало из https://github.com/github/ruby.git
143 строки
3.4 KiB
Ruby
143 строки
3.4 KiB
Ruby
require "rss/0.9"
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module RSS
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##
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# = RSS 2.0 support
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#
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# RSS has three different versions. This module contains support for version
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# 2.0[http://www.rssboard.org/rss-specification]
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#
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# == Producing RSS 2.0
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#
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# Producing our own RSS feeds is easy as well. Let's make a very basic feed:
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#
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# require "rss"
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#
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# rss = RSS::Maker.make("2.0") do |maker|
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# maker.channel.language = "en"
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# maker.channel.author = "matz"
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# maker.channel.updated = Time.now.to_s
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# maker.channel.link = "http://www.ruby-lang.org/en/feeds/news.rss"
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# maker.channel.title = "Example Feed"
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# maker.channel.description = "A longer description of my feed."
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# maker.items.new_item do |item|
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# item.link = "http://www.ruby-lang.org/en/news/2010/12/25/ruby-1-9-2-p136-is-released/"
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# item.title = "Ruby 1.9.2-p136 is released"
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# item.updated = Time.now.to_s
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# end
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# end
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#
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# puts rss
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#
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# As you can see, this is a very Builder-like DSL. This code will spit out an
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# RSS 2.0 feed with one item. If we needed a second item, we'd make another
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# block with maker.items.new_item and build a second one.
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class Rss
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class Channel
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[
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["generator"],
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["ttl", :integer],
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].each do |name, type|
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install_text_element(name, "", "?", name, type)
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end
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[
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%w(category categories),
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].each do |name, plural_name|
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install_have_children_element(name, "", "*", name, plural_name)
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end
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[
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["image", "?"],
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["language", "?"],
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].each do |name, occurs|
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install_model(name, "", occurs)
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end
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Category = Item::Category
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class Item
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[
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["comments", "?"],
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["author", "?"],
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].each do |name, occurs|
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install_text_element(name, "", occurs)
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end
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[
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["pubDate", '?'],
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].each do |name, occurs|
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install_date_element(name, "", occurs, name, 'rfc822')
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end
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alias date pubDate
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alias date= pubDate=
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[
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["guid", '?'],
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].each do |name, occurs|
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install_have_child_element(name, "", occurs)
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end
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private
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alias _setup_maker_element setup_maker_element
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def setup_maker_element(item)
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_setup_maker_element(item)
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@guid.setup_maker(item) if @guid
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end
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class Guid < Element
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include RSS09
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[
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["isPermaLink", "", false, :boolean]
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].each do |name, uri, required, type|
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install_get_attribute(name, uri, required, type)
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end
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content_setup
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def initialize(*args)
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if Utils.element_initialize_arguments?(args)
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super
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else
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super()
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self.isPermaLink = args[0]
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self.content = args[1]
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end
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end
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alias_method :_PermaLink?, :PermaLink?
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private :_PermaLink?
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def PermaLink?
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perma = _PermaLink?
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perma or perma.nil?
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end
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private
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def maker_target(item)
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item.guid
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end
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def setup_maker_attributes(guid)
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guid.isPermaLink = isPermaLink
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guid.content = content
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end
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end
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end
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end
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end
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RSS09::ELEMENTS.each do |name|
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BaseListener.install_get_text_element("", name, name)
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end
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end
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