librmail-ruby1.8 0.17-1.1 / usr / lib / ruby / 1.8 / rmail / utils.rb

#--
#   Copyright (C) 2002, 2003 Matt Armstrong.  All rights reserved.
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#++
# Implements the RMail::Utils module.

module RMail

  # The RMail::Utils module is a collection of random utility methods
  # that are useful for dealing with email.
  module Utils

    class << self

      # Return the given string unquoted if it is quoted.
      def unquote(str)
        if str =~ /\s*"(.*?([^\\]|\\\\))"/m
          $1.gsub(/\\(.)/, '\1')
        else
          str
        end
      end

      # Decode the given string as if it were a chunk of base64 data
      def base64_decode(str)
        str.unpack("m*").first
      end

      # Decode the given string as if it were a chunk of quoted
      # printable data
      def quoted_printable_decode(str)
        str.unpack("M*").first
      end

    end
  end
end