method
prefix_of
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prefix_of( node, namespace=nil )
private
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# File lib/rexml/light/node.rb, line 184 def prefix_of( node, namespace=nil ) if not namespace name = node.name name =~ NAMESPLIT $1 else ns = at(3).find { |k,v| v == namespace } ns ? ns : prefix_of( node.parent, namespace ) end end