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#!/usr/bin/env ruby
require "nkf"
class String
# From tdiary.rb
def shorten( len = 120 )
lines = NKF::nkf( "-e -m0 -f#{len}", self.gsub( /\n/, ' ' ) ).split( /\n/ )
lines[0].concat( '...' ) if lines[0] and lines[1]
lines[0]
end
end
require "rss"
items = []
verbose = false
def error(exception)
mark = "=" * 20
mark = "#{mark} error #{mark}"
puts mark
puts exception.class
puts exception.message
puts exception.backtrace
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($!) if verbose
end
if rss.nil?
puts "#{fname} does not include RSS 1.0 or 0.9x/2.0"
else
begin
rss.output_encoding = "euc-jp"
rescue RSS::UnknownConversionMethodError
error($!) if verbose
end
rss.items.each do |item|
if item.respond_to?(:pubDate) and item.pubDate
class << item
alias_method(:dc_date, :pubDate)
end
end
if item.respond_to?(:dc_date) and item.dc_date
items << [rss.channel, item]
end
end
end
end
processing_time = Time.now - before_time
items.sort do |x, y|
y[1].dc_date <=> x[1].dc_date
end[0..20].each do |channel, item|
puts "#{item.dc_date.localtime.iso8601}: " <<
"#{channel.title}: #{item.title}"
puts " Description: #{item.description.shorten(50)}" if item.description
end
puts "Used XML parser: #{RSS::Parser.default_parser}"
puts "Processing time: #{processing_time}s"
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