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Question about trailing modifiers format #114

Closed fanavarro closed 5 years ago

fanavarro commented 5 years ago

Hi all. I would like to ask you a question about trailing modifiers in OBO ontologies.

The OBO parser in OWLAPI is showing warning messages indicating that qualifier values should be enclosed by quotes. I have searched information on this and what I have found is the following example from OBO 1.2 specification:

[GO:ma, GO:midori "Midori was drinking and came up with this", GO:john {namespace=johnsirrelevantdbxrefs}]

They are setting an unquoted text for a trailing modifier value. For its part, I have not found an example for OBO 1.4.

My question is what is the correct format for trailing modifiers?

Regards and thanks so much for your time, Fran.

althonos commented 5 years ago

Hi @fanavarro,

The correct format for trailing qualifiers is indeed that values are quote-enclosed: if you look at the Syntax and Semantics Draft you'll see the following definition for the Qualifier production rule:

Qualifier ::= Rel-ID '=' QuotedString
fanavarro commented 5 years ago

Hi @althonos and thanks for your quick answer, it has solved my doubt.

Greetings and thanks again for your time.