/usr/share/doc/ruby-pdf-reader/examples/callbacks.rb is in ruby-pdf-reader 1.4.0-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | #!/usr/bin/env ruby
# coding: utf-8
# List all callbacks generated by each page
#
# WARNING: this will generate a *lot* of output, so you probably want to pipe
# it through less or to a text file.
require 'pdf/reader'
receiver = PDF::Reader::RegisterReceiver.new
filename = File.expand_path(File.dirname(__FILE__)) + "/../spec/data/cairo-basic.pdf"
PDF::Reader.open(filename) do |reader|
reader.pages.each do |page|
page.walk(receiver)
receiver.callbacks.each do |cb|
puts cb
end
end
end
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