Edit File by line

# frozen_string_literal: false

[0] Fix | Delete

[1] Fix | Delete

# = RSS reading and writing

[2] Fix | Delete

[3] Fix | Delete

# Really Simple Syndication (RSS) is a family of formats that describe 'feeds,'

[4] Fix | Delete

# specially constructed XML documents that allow an interested person to

[5] Fix | Delete

# subscribe and receive updates from a particular web service. This portion of

[6] Fix | Delete

# the standard library provides tooling to read and create these feeds.

[7] Fix | Delete

[8] Fix | Delete

# The standard library supports RSS 0.91, 1.0, 2.0, and Atom, a related format.

[9] Fix | Delete

# Here are some links to the standards documents for these formats:

[10] Fix | Delete

[11] Fix | Delete

# * RSS

[12] Fix | Delete

# * 0.9.1[http://www.rssboard.org/rss-0-9-1-netscape]

[13] Fix | Delete

# * 1.0[http://web.resource.org/rss/1.0/]

[14] Fix | Delete

# * 2.0[http://www.rssboard.org/rss-specification]

[15] Fix | Delete

# * Atom[http://tools.ietf.org/html/rfc4287]

[16] Fix | Delete

[17] Fix | Delete

# == Consuming RSS

[18] Fix | Delete

[19] Fix | Delete

# If you'd like to read someone's RSS feed with your Ruby code, you've come to

[20] Fix | Delete

# the right place. It's really easy to do this, but we'll need the help of

[21] Fix | Delete

# open-uri:

[22] Fix | Delete

[23] Fix | Delete

# require 'rss'

[24] Fix | Delete

# require 'open-uri'

[25] Fix | Delete

[26] Fix | Delete

# url = 'http://www.ruby-lang.org/en/feeds/news.rss'

[27] Fix | Delete

# open(url) do |rss|

[28] Fix | Delete

# feed = RSS::Parser.parse(rss)

[29] Fix | Delete

# puts "Title: #{feed.channel.title}"

[30] Fix | Delete

# feed.items.each do |item|

[31] Fix | Delete

# puts "Item: #{item.title}"

[32] Fix | Delete

# end

[33] Fix | Delete

# end

[34] Fix | Delete

[35] Fix | Delete

# As you can see, the workhorse is RSS::Parser#parse, which takes the source of

[36] Fix | Delete

# the feed and a parameter that performs validation on the feed. We get back an

[37] Fix | Delete

# object that has all of the data from our feed, accessible through methods.

[38] Fix | Delete

# This example shows getting the title out of the channel element, and looping

[39] Fix | Delete

# through the list of items.

[40] Fix | Delete

[41] Fix | Delete

# == Producing RSS

[42] Fix | Delete

[43] Fix | Delete

# Producing our own RSS feeds is easy as well. Let's make a very basic feed:

[44] Fix | Delete

[45] Fix | Delete

# require "rss"

[46] Fix | Delete

[47] Fix | Delete

# rss = RSS::Maker.make("atom") do |maker|

[48] Fix | Delete

# maker.channel.author = "matz"

[49] Fix | Delete

# maker.channel.updated = Time.now.to_s

[50] Fix | Delete

# maker.channel.about = "http://www.ruby-lang.org/en/feeds/news.rss"

[51] Fix | Delete

# maker.channel.title = "Example Feed"

[52] Fix | Delete

[53] Fix | Delete

# maker.items.new_item do |item|

[54] Fix | Delete

# item.link = "http://www.ruby-lang.org/en/news/2010/12/25/ruby-1-9-2-p136-is-released/"

[55] Fix | Delete

# item.title = "Ruby 1.9.2-p136 is released"

[56] Fix | Delete

# item.updated = Time.now.to_s

[57] Fix | Delete

# end

[58] Fix | Delete

# end

[59] Fix | Delete

[60] Fix | Delete

# puts rss

[61] Fix | Delete

[62] Fix | Delete

# As you can see, this is a very Builder-like DSL. This code will spit out an

[63] Fix | Delete

# Atom feed with one item. If we needed a second item, we'd make another block

[64] Fix | Delete

# with maker.items.new_item and build a second one.

[65] Fix | Delete

[66] Fix | Delete

# == Copyright

[67] Fix | Delete

[68] Fix | Delete

[69] Fix | Delete

[70] Fix | Delete

# You can redistribute it and/or modify it under the same terms as Ruby.

[71] Fix | Delete

[72] Fix | Delete

# There is an additional tutorial by the author of RSS at:

[73] Fix | Delete

# http://www.cozmixng.org/~rwiki/?cmd=view;name=RSS+Parser%3A%3ATutorial.en

[74] Fix | Delete

[75] Fix | Delete

module RSS

[76] Fix | Delete

end

[77] Fix | Delete

[78] Fix | Delete

require 'rss/1.0'

[79] Fix | Delete

require 'rss/2.0'

[80] Fix | Delete

require 'rss/atom'

[81] Fix | Delete

require 'rss/content'

[82] Fix | Delete

require 'rss/dublincore'

[83] Fix | Delete

require 'rss/image'

[84] Fix | Delete

require 'rss/itunes'

[85] Fix | Delete

require 'rss/slash'

[86] Fix | Delete

require 'rss/syndication'

[87] Fix | Delete

require 'rss/taxonomy'

[88] Fix | Delete

require 'rss/trackback'

[89] Fix | Delete

[90] Fix | Delete

require "rss/maker"

[91] Fix | Delete

[92] Fix | Delete