def initialize stream, value=nil, parent=nil, reference=false
super(parent)
@ndata = @pubid = @value = @external = nil
if stream.kind_of? Array
@name = stream[1]
if stream[-1] == '%'
@reference = true
stream.pop
else
@reference = false
end
if stream[2] =~ /SYSTEM|PUBLIC/
@external = stream[2]
if @external == 'SYSTEM'
@ref = stream[3]
@ndata = stream[4] if stream.size == 5
else
@pubid = stream[3]
@ref = stream[4]
end
else
@value = stream[2]
end
else
@reference = reference
@external = nil
@name = stream
@value = value
end
end