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* lib/rss/atom.rb: Documentation for RSS::Atom based on a patch by

Michael Denomy
* lib/rss/maker.rb: Documentation for RSS::Maker also by @mdenomy


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40475 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
zzak 2013-04-26 05:36:51 +00:00
parent 66938f38a3
commit 1eb5004660
3 changed files with 114 additions and 1 deletions

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@ -1,3 +1,9 @@
Fri Apr 26 14:35:00 2013 Zachary Scott <zachary@zacharyscott.net>
* lib/rss/atom.rb: Documentation for RSS::Atom based on a patch by
Michael Denomy
* lib/rss/maker.rb: Documentation for RSS::Maker also by @mdenomy
Fri Apr 26 12:41:22 2013 Tanaka Akira <akr@fsij.org>
* ext/curses/extconf.rb: Test linkability of curses_version at first.

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@ -1,6 +1,14 @@
require 'rss/parser'
module RSS
##
# Atom is an XML-based document format that is used to describe 'feeds' of related information.
# A typical use is in a news feed where the information is periodically updated and which users
# can subscribe to. The Atom format is described in http://tools.ietf.org/html/rfc4287
#
# The Atom module provides support in reading and creating feeds.
#
# See the RSS module for examples consuming and creating feeds
module Atom
##
@ -82,6 +90,10 @@ module RSS
end
end
# The TextConstruct module is used to define a Text construct Atom element,
# which is used to store small quantities of human-readable text
#
# The TextConstruct has a type attribute, e.g. text, html, xhtml
module TextConstruct
def self.append_features(klass)
super
@ -108,6 +120,7 @@ module RSS
end
attr_writer :xhtml
def xhtml
return @xhtml if @xhtml.nil?
if @xhtml.is_a?(XML::Element) and
@ -121,6 +134,7 @@ module RSS
{"xmlns" => XHTML_URI}, children)
end
# Returns true if type is "xhtml"
def have_xml_content?
@type == "xhtml"
end
@ -148,7 +162,13 @@ module RSS
end
end
# The PersonConstruct module is used to define a Person Atom element that can be
# used to describe a person, corporation, or similar entity
#
# The PersonConstruct has a Name, Uri, and Email child elements
module PersonConstruct
# Adds attributes for name, uri, and email to the +klass+
def self.append_features(klass)
super
klass.class_eval do
@ -166,22 +186,30 @@ module RSS
target.__send__("new_#{self.class.name.split(/::/).last.downcase}")
end
# The name of the person or entity
class Name < RSS::Element
include CommonModel
include ContentModel
end
# The URI of the person or entity
class Uri < RSS::Element
include CommonModel
include URIContentModel
end
# The email of the person or entity
class Email < RSS::Element
include CommonModel
include ContentModel
end
end
# Element used to describe an Atom date and time in the ISO 8601 format
#
# Examples:
# * 2013-03-04T15:30:02Z
# * 2013-03-04T10:30:02-05:00
module DateConstruct
def self.append_features(klass)
super
@ -191,12 +219,17 @@ module RSS
end
end
# Raises NotAvailableValueError if element content is nil
def atom_validate(ignore_unknown_element, tags, uri)
raise NotAvailableValueError.new(tag_name, "") if content.nil?
end
end
module DuplicateLinkChecker
# Checks if there are duplicate links with the same type and hreflang attributes
# that have an alternate (or empty) rel attribute
#
# Raises a TooMuchTagError if there are duplicates found
def validate_duplicate_links(links)
link_infos = {}
links.each do |link|
@ -211,6 +244,9 @@ module RSS
end
end
# Atom feed element
#
# A Feed has several metadata attributes in addition to a number of Entry child elements
class Feed < RSS::Element
include RootElementMixin
include CommonModel
@ -238,6 +274,7 @@ module RSS
tag, URI, occurs, tag, *args)
end
# Creates a new Atom feed
def initialize(version=nil, encoding=nil, standalone=nil)
super("1.0", version, encoding, standalone)
@feed_type = "atom"
@ -246,6 +283,8 @@ module RSS
alias_method :items, :entries
# Returns true if there are any authors for the feed or any of the Entry
# child elements have an author
def have_author?
authors.any? {|author| !author.to_s.empty?} or
entries.any? {|entry| entry.have_author?(false)}
@ -329,16 +368,32 @@ module RSS
end
end
# Atom Icon element
#
# Image that provides a visual identification for the Feed. Image should have an aspect
# ratio of 1:1
class Icon < RSS::Element
include CommonModel
include URIContentModel
end
# Atom ID element
#
# Universally Unique Identifier (UUID) for the Feed
class Id < RSS::Element
include CommonModel
include URIContentModel
end
# Defines an Atom Link element
#
# A Link has the following attributes:
# * href
# * rel
# * type
# * hreflang
# * title
# * length
class Link < RSS::Element
include CommonModel
@ -359,6 +414,10 @@ module RSS
end
end
# Atom Logo element
#
# Image that provides a visual identification for the Feed. Image should have an aspect
# ratio of 2:1 (horizontal:vertical)
class Logo < RSS::Element
include CommonModel
include URIContentModel
@ -373,26 +432,40 @@ module RSS
end
end
# Atom Rights element
#
# TextConstruct that contains copyright information regarding the content in an Entry or Feed
class Rights < RSS::Element
include CommonModel
include TextConstruct
end
# Atom Subtitle element
#
# TextConstruct that conveys a description or subtitle for a Feed
class Subtitle < RSS::Element
include CommonModel
include TextConstruct
end
# Atom Title element
#
# TextConstruct that conveys a description or title for a feed or Entry
class Title < RSS::Element
include CommonModel
include TextConstruct
end
# Atom Updated element
#
# DateConstruct indicating the most recent time when an Entry or Feed was modified
# in a way the publisher considers significant
class Updated < RSS::Element
include CommonModel
include DateConstruct
end
# Defines a child Atom Entry element for an Atom Feed
class Entry < RSS::Element
include CommonModel
include DuplicateLinkChecker
@ -416,6 +489,10 @@ module RSS
tag, URI, occurs, tag, *args)
end
# Returns whether any of the following are true
# * There are any authors in the feed
# * If the parent element has an author and the +check_parent+ parameter was given.
# * There is a source element that has an author
def have_author?(check_parent=true)
authors.any? {|author| !author.to_s.empty?} or
(check_parent and @parent and @parent.have_author?) or
@ -642,6 +719,8 @@ module RSS
end
end
# Defines a top-level Atom Entry element
#
class Entry < RSS::Element
include RootElementMixin
include CommonModel
@ -666,21 +745,25 @@ module RSS
tag, URI, occurs, tag, *args)
end
# Creates a new Atom Entry element
def initialize(version=nil, encoding=nil, standalone=nil)
super("1.0", version, encoding, standalone)
@feed_type = "atom"
@feed_subtype = "entry"
end
# Returns the Entry in an array
def items
[self]
end
# sets up the +maker+ for constructing Entry elements
def setup_maker(maker)
maker = maker.maker if maker.respond_to?("maker")
super(maker)
end
# Returns where there are any authors present or there is a source with an author
def have_author?
authors.any? {|author| !author.to_s.empty?} or
(source and source.have_author?)

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@ -1,32 +1,56 @@
require "rss/rss"
module RSS
##
#
# Provides a set of builders for various RSS objects
#
# * Feeds
# * RSS 0.91
# * RSS 1.0
# * RSS 2.0
# * Atom 1.0
#
# * Elements
# * Atom::Entry
module Maker
# Collection of supported makers
MAKERS = {}
class << self
# Builder for an RSS object
# Creates an object of the type passed in +args+
#
# Executes the +block+ to populate elements of the created RSS object
def make(version, &block)
self[version].make(&block)
end
# Returns the maker for the +version+
def [](version)
maker_info = maker(version)
raise UnsupportedMakerVersionError.new(version) if maker_info.nil?
maker_info[:maker]
end
# Adds a maker to the set of supported makers
def add_maker(version, normalized_version, maker)
MAKERS[version] = {:maker => maker, :version => normalized_version}
end
# Returns collection of supported maker versions
def versions
MAKERS.keys.uniq.sort
end
# Returns collection of supported makers
def makers
MAKERS.values.collect {|info| info[:maker]}.uniq
MAKERS.values.collect { |info| info[:maker] }.uniq
end
# Returns true if the version is supported
def supported?(version)
versions.include?(version)
end