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73 lines
2.3 KiB
Ruby
73 lines
2.3 KiB
Ruby
#!/usr/bin/env ruby
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#
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# Copyright (c) 2009, neingeist <neingeist@bl0rg.net>
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# Copyright (c) 2005, Joe Mason <joe@notcharles.ca>
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to permit
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# persons to whom the Software is furnished to do so, subject to the
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# following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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# NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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# USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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# Usage: rss-title-filter <list of titles to include>
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#
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# Skips all items which do NOT include the given titles.
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#
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# Example: to include all entries with the title "meme", "quiz" or
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# "picture post", do:
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#
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# rss-title-filter meme quiz "picture post"
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#
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# Requires the Ruby RSS module, which is included in Ruby 1.8.3 or
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# higher and available for older versions of Ruby at
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# http://raa.ruby-lang.org/project/rss/.
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#
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# based on "rss-tag-filter" by Joe Mason.
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require 'rss/2.0'
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# if no titles were given, no parsing needed
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if ARGV.empty? then
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STDIN.each do |line|
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STDOUT.puts(line)
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end
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exit(0)
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end
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# parse the RSS
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rss_source = STDIN.collect.join
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begin
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rss = RSS::Parser.parse(rss_source)
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rescue RSS::InvalidRSSError
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rss = RSS::Parser.parse(rss_source, false) # no validation
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end
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# filter out all items NOT in the cmd-line args
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rss.channel.items.reject! do |item|
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found = false
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ARGV.each do |arg|
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if Regexp.new(arg, Regexp::IGNORECASE).match(item.title)
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found = true
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end
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end
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!found
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end
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# write the modified rss
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STDOUT.puts(rss)
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