#--
-# $Id: eet.rb 45 2005-05-25 20:08:35Z tilman $
+# $Id: eet.rb 49 2005-05-30 19:52:36Z tilman $
#
# Copyright (c) 2005 Tilman Sauerbeck (tilman at code-monkey de)
#
require "eet_ext"
class Object
- # :call-seq:
- # object.to_eet -> string
- #
- # Serializes the receiver to EET format.
- def to_eet
- props = to_eet_properties
-
- unless props.is_a?(Hash) && !props.empty?
- raise(Eet::PropertyError, "invalid EET properties")
- end
-
- eet_name = to_eet_name
-
- if eet_name.to_str.length < 1 || eet_name.to_str.include?(0)
- raise(Eet::NameError, "invalid EET name")
- end
-
- stream = Eet::Stream.new
-
- props.each_pair do |tag, arg|
- unless arg.is_a?(Array)
- raise(Eet::PropertyError, "hash value is not an array")
- end
-
- value, type = arg
- next if value.nil?
-
- stream.push(*value.to_eet_chunks(tag, type))
- end
-
- chunk = Eet::Chunk.new(eet_name, stream.serialize)
- Eet::Stream.new(chunk).serialize
- end
-
def to_eet_chunks(tag, type = nil) # :nodoc:
[Eet::Chunk.new(tag, to_eet)]
end
module Eet
VERSION = "0.1.2"
- class EetError < StandardError; end
- class NameError < EetError; end
- class PropertyError < EetError; end
class ChunkError < EetError; end
class Stream # :nodoc:
end
class Chunk # :nodoc:
- attr_reader :tag, :data
-
- def initialize(tag, data)
- if tag.to_str.include?(0)
- raise(ArgumentError,
- "tag must not contain binary zeroes")
- end
-
- @tag = tag.to_str.dup.freeze
- @data = data.to_str.dup.freeze
-
- # libeet uses a signed 32bit integer to store the
- # chunk size, so make sure we don't overflow it
- if (@tag.length + 1 + @data.length) >= (1 << 31)
- raise(ArgumentError, "tag or data too long")
+ def Chunk.deserialize(data)
+ if data.to_str.empty?
+ raise(ArgumentError, "buffer is empty")
end
- end
- def Chunk.deserialize(data)
if data.length < 8 || data[0, 4] != "CHnK"
raise(ChunkError, "invalid data")
end