basic-only langMatches test

* Lee Feigenbaum <lee@thefigtrees.net> [2007-08-06 09:01-0400]
> ACTION: ericP to write a test showing that langMatches doens't do extended 
> matching

I checked with i18n-core and it appears that there are no tests that
basic matches but extended does not match.
  http://www.w3.org/mid/46A62549.7010807@yahoo-inc.com

I propose:

http://www.w3.org/2001/sw/DataAccess/tests/data-r2/expr-builtin/manifest.ttl
  LangMatches-basic

Data:
@prefix : <http://example.org/#> .

:x :p3 "abc"@de .
:x :p4 "abc"@de-DE .
:x :p5 "abc"@de-Latn-DE .

Query:
PREFIX : <http://example.org/#>

SELECT *
{ :x ?p ?v . FILTER langMatches(lang(?v), "de-DE") . }

Results:
┌────────────────────────┬───────────┐
│                       p│          v│
├────────────────────────┼───────────┤
│<http://example.org/#p4>│"abc"@de-de│
└────────────────────────┴───────────┘

and i pass it...

-- 
-eric

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(eric@w3.org)
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