ruby/sample/rss/blend.rb

80 строки
1.7 KiB
Ruby
Executable File

#!/usr/bin/env ruby
require "rss"
feeds = []
verbose = false
encoding = "UTF-8"
def error(exception)
mark = "=" * 20
mark = "#{mark} error #{mark}"
STDERR.puts mark
STDERR.puts exception.class
STDERR.puts exception.message
STDERR.puts exception.backtrace
STDERR.puts mark
end
before_time = Time.now
ARGV.each do |fname|
if fname == '-v'
verbose = true
next
end
rss = nil
f = File.new(fname).read
begin
## do validate parse
rss = RSS::Parser.parse(f)
rescue RSS::InvalidRSSError
error($!) if verbose
## do non validate parse for invalid RSS 1.0
begin
rss = RSS::Parser.parse(f, false)
rescue RSS::Error
## invalid RSS.
error($!) if verbose
end
rescue RSS::Error
error($!) if verbose
end
if rss.nil?
STDERR.puts "#{fname} does not include RSS 1.0 or 0.9x/2.0"
else
begin
rss.output_encoding = encoding
rescue RSS::UnknownConversionMethodError
error($!) if verbose
end
feeds << rss
end
end
processing_time = Time.now - before_time
rss = RSS::Maker.make("1.0") do |maker|
maker.encoding = encoding
maker.channel.about = "http://example.com/blend.rdf"
maker.channel.title = "blended feeds"
maker.channel.link = "http://example.com/"
maker.channel.description = "blended feeds generated by RSS Parser"
feeds.each do |feed|
feed.items.each do |item|
item.setup_maker(maker.items)
end
end
maker.items.each do |item|
item.title ||= "UNKNOWN"
item.link ||= "UNKNOWN"
end
maker.items.do_sort = true
maker.items.max_size = 15
end
puts rss
STDERR.puts "Used XML parser: #{RSS::Parser.default_parser}"
STDERR.puts "Processing time: #{processing_time}s"