# File lib/pdf/reader/filter/ascii_hex.rb, line 5 def initialize(options = {}) @options = options end
Decode the specified data using the AsciiHex algorithm.
# File lib/pdf/reader/filter/ascii_hex.rb, line 12 def filter(data) data.chop! if data[-1,1] == ">" data = data[1,data.size] if data[0,1] == "<" data.gsub!(%r[^A-Fa-f0-9]/,"") data << "0" if data.size % 2 == 1 data.scan(%r.{2}/).map { |s| s.hex.chr }.join("") rescue Exception => e # Oops, there was a problem decoding the stream raise MalformedPDFError, "Error occured while decoding an ASCIIHex stream (#{e.class.to_s}: #{e.to_s})" end