document.write('class DirectoryScanner
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document.write('
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document.write(' def initialize
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document.write(' @fileAction = nil
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document.write(' @dirAction = nil
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document.write(' end
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document.write('
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document.write(' def on_file(&action)
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document.write(' @fileAction = action
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document.write(' end
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document.write('
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document.write(' def on_dir(&action)
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document.write(' @dirAction = action
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document.write(' end
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document.write('
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document.write(' def scan_subtree(parentPath)
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document.write(' Dir.open(parentPath) { |dir|
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document.write(' for file in dir
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document.write(' next if file == \'.\';
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document.write(' next if file == \'..\';
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document.write(' path = parentPath + File::Separator + file
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document.write(' if File.directory? path
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document.write(' @dirAction.call(file, path) unless @dirAction.nil?
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document.write(' scan_subtree(path)
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document.write(' else
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document.write(' @fileAction.call(file, path) unless @fileAction.nil?
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document.write(' end
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document.write(' end
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document.write(' }
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document.write(' end
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document.write('
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document.write('end
scanner = DirectoryScanner.new
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document.write('scanner.on_file { |file, path| puts " #{file}" }
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document.write('scanner.on_dir { |file, path| puts "#{path}" }
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document.write('scanner.scan_subtree(\'c:/windows\')
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document.write('
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