fails decoding a turtle rdf with just namespace and no id

[tzapu]

in this particular case

@prefix ns7:    <https://domain.com/> .
ns1:Account\_0x41e55600548    ns4:seeAlso    ns7: .
ns7:    ns4:label    "blog" .

the decoder fail with unexpected character \t on ns7: line
the snippet passes validation in a turtle validator

[tzapu]

as this indicates
https://dvcs.w3.org/hg/rdf/raw-file/default/rdf-turtle/index.html#grammar-production-PN_LOCAL
it is optional, so it is a valid case

exact error syntax error: unexpected character: '\t'

[boutros]

I admit my comprension of EBNF grammar is rather limited, so I'll try to validate a string with an EBNF parser.. maybe this one: https://godoc.org/golang.org/x/exp/ebnf

[tzapu]

ah, did i mention this should be sorted as well in the pull request i made?

at least i think so, seems to work fine for us