Re: Are literal language tags compared in lowercase?

On Wed, 11 Jan 2017 19:00:47 +0000, Richard Cyganiak <richard@cyganiak.de> wrote:
> Hi Stian,
> 
> An answer cannot be determined with 100% certainty from the text.
> 
> What is clear:
> 
> - "Hello"@en and "Hello"@EN have the same value
> - One MAY normalise "Hello"@EN to "Hello"@en
> - In RDF 2004, "Hello"@en and "Hello"@EN were clearly equal
> 
> RDF 2004 forced the language tag to be lower-cased in the abstract syntax. Implementations of RDF 2004 often did not do that, but retained the case when storing or transforming RDF, while still treating @en and @EN as equal. My recollection is that we wanted to change the language of the spec to make this behaviour legal. Unfortunately it seems the language came out less clear than it should be. I do not think that there was any intention to make @en and @EN not equal.

OK, so "Hello"@en and "Hello"@EN are the same value ("Value Equal"), but they are NOT (in RDF 1.1) "Term Equal"?

That would at least be along the same lines as "1"^^xsd:integer and "01"^^xsd:integer.

-- 
Stian Soiland-Reyes