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# =XMPP4R - XMPP Library for Ruby
# License:: Ruby's license (see the LICENSE file) or GNU GPL, at your option.
# Website::http://xmpp4r.github.io
require 'xmpp4r/xmppelement'
module Jabber
##
# A class used to build/parse <x/> elements
#
# These elements may occur as "attachments"
# in [Message] and [Presence] stanzas
class X < XMPPElement
name_xmlns 'x'
force_xmlns true
end
module XParent
##
# Get the first <x/> element in this stanza, or nil if none found.
# wanted_xmlns:: [String] Optional, find the first <x/> element having this xmlns,
# wanted_xmlns can also be a derivate of XMPPElement from which the namespace will be taken
# result:: [REXML::Element] or nil
def x(wanted_xmlns=nil)
if wanted_xmlns.kind_of? Class and wanted_xmlns.ancestors.include? XMPPElement
wanted_xmlns = wanted_xmlns.new.namespace
end
each_element('x') { |x|
if wanted_xmlns.nil? or wanted_xmlns == x.namespace
return x
end
}
nil
end
end
end
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