[INTLIB] XSLT handles properly missing values

[tomas-knap]

So that URI as follows are not produced:

http://linked.opendata.cz/resource/legislation/cz/expression/2009/093-2009/version/cz/2009-03-26/textchunk//dependency-tree

http://linked.opendata.cz/resource/legislation/cz/expression/2009/093-2009/version/cz/2009-03-26/textchunk/

http://linked.opendata.cz/resource/form/

...

[tomas-knap]

Typically caused by missing textchunk/entity

[tomas-knap]

PREFIX skos: http://www.w3.org/2004/02/skos/core#
PREFIX frbr: http://purl.org/vocab/frbr/core#
PREFIX oa: http://www.w3.org/ns/oa#
PREFIX lingv: http://purl.org/lingv/ontology#
PREFIX lexc: http://purl.org/lex/ontology/concepts#

SELECT *
WHERE {
?x a ?y
filter (regex(str(?x), "/$"))

}

[tomas-knap]

160 triples of this kind