> Does atom:l...@rel allow multiple, space-separated values? It is > unclear to me from section 4.2.7.2. HTML clearly does [1] allow > multiple space-separated values.
No: " The value of "rel" MUST be a string that is non-empty and matches either the "isegment-nz-nc" or the "IRI" production in [RFC3987]." You cannot have a space in any component of an IRI. - Brian
