Class: Factoid::Value

Inherits:
Object
  • Object
show all
Defined in:
lib/factoid/value.rb

Defined Under Namespace

Classes: EntitoidInterpreter, IndentityInterpreter, XSDDateInterpreter

Constant Summary collapse

EMPTY = 
Value.new(nil, nil).freeze
Interpreters = 
[
  XSDDateInterpreter,
  EntitoidInterpreter,
  IndentityInterpreter,
]

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(type, raw_value) ⇒ Value

Returns a new instance of Value.



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# File 'lib/factoid/value.rb', line 6

def initialize(type, raw_value)
  @type = type
  @raw_value = raw_value
end

Class Method Details

.from_xml(container_elem) ⇒ Object 



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# File 'lib/factoid/xml.rb', line 82

def Value.from_xml(container_elem)
  elem = container_elem.at('./f:value', NS)

  type = elem.attr('type')
  # TODO: special case for entitoids
  # TODO: use type = :entitoid_ref instead of nil

  return Value.new(type, elem)
end

Instance Method Details

#value(interpret, follow) ⇒ Object 



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# File 'lib/factoid/value.rb', line 13

def value(interpret, follow)
  raw = nil

  if @raw_value.elements.empty?
    raw = @raw_value.text
  else
    raw = @raw_value
  end

  if !interpret
    return raw
  end

  interpreter = Interpreters.find { |i| begin i.accept?(@type, raw); rescue; end; }
  v = interpreter.interpret(@type, raw)

  if !follow
    return v
  end

  # FIXME: use Dereferenciators (like Interpreters)
  if v.is_a? EntitoidRef
    r = v.deref
  else
    r = v
  end

  return r
end