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def write out, indent=-1 out << '<!ENTITY ' out << '% ' if @reference out << @name out << ' ' if @external out << @external << ' ' if @pubid q = @pubid.include?('"')?"'":'"' out << q << @pubid << q << ' ' end q = @ref.include?('"')?"'":'"' out << q << @ref << q out << ' NDATA ' << @ndata if @ndata else q = @value.include?('"')?"'":'"' out << q << @value << q end out << '>' end