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Contents
# Copyright 2011 innoQ Deutschland GmbH
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
module IqRdf
class Collection
attr_reader :elements
def initialize(collection)
@elements = []
collection.each do |element|
element = Literal.new(element) unless element.is_a?(IqRdf::Uri) || element.is_a?(IqRdf::Literal)
@elements << element
end
end
def to_s(lang = nil)
"(#{@elements.map{|e| e.to_s(lang)}.join(" ")})"
end
def build_xml(xml, elements = nil, &block)
elements ||= @elements.dup
block.call({},
lambda {
xml.rdf :List do
elements.shift.build_xml(xml) do |*args|
xml.rdf(:first, *args)
end
if elements.size > 0
build_xml(xml, elements) do |opts, block|
xml.rdf :rest do
block.call
end
end
else
xml.rdf :rest, "rdf:resource" => Rdf.nil.full_uri
end
end
}
)
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems