lib/rbyaml/loader.rb

   1 # This is a more or less straight translation of PyYAML3000 to Ruby
   2
   3 require 'rbyaml/scanner'
   4 require 'rbyaml/parser'
   5 require 'rbyaml/composer'
   6 require 'rbyaml/constructor'
   7 require 'rbyaml/resolver'
   8
   9 module RbYAML
  10   class CommonLoader
  11     attr_accessor :scanner, :parser, :composer, :constructor, :resolver
  12
  13     def initialize(stream,scanner=Scanner,parser=Parser,composer=Composer,constructor=BaseConstructor,resolver=BaseResolver)
  14       @scanner = scanner.new(stream)
  15       @parser = parser.new(@scanner)
  16       @resolver = resolver.new
  17       @composer = composer.new(@parser,@resolver)
  18       @constructor = constructor.new(@composer)
  19     end
  20   end
  21
  22   class BaseLoader < CommonLoader
  23     def initialize(stream)
  24       super(stream,Scanner,Parser,Composer,BaseConstructor,BaseResolver)
  25     end
  26   end
  27
  28   class SafeLoader < CommonLoader
  29     def initialize(stream)
  30       super(stream,Scanner,Parser,Composer,SafeConstructor,Resolver)
  31     end
  32   end
  33
  34   class Loader < CommonLoader
  35     def initialize(stream)
  36       super(stream,Scanner,Parser,Composer,Constructor,Resolver)
  37     end
  38   end
  39 end
  40