/usr/lib/lv2/uri-map.lv2/uri-map.ttl is in lv2-dev 1.14.0~dfsg1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | @prefix lv2: <http://lv2plug.in/ns/lv2core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix umap: <http://lv2plug.in/ns/ext/uri-map#> .
<http://lv2plug.in/ns/ext/uri-map>
a lv2:Feature ;
owl:deprecated true ;
rdfs:seeAlso <uri-map.h> ,
<lv2-uri-map.doap.ttl> ;
lv2:documentation """
<p><span class="warning">This extension is deprecated.</span> New
implementations should use <a href="../urid/urid.html">LV2 URID</a>
instead.</p>
<p>This extension defines a simple mechanism for plugins to map URIs to
integers, usually for performance reasons (e.g. processing events typed by URIs
in real time). The expected use case is for plugins to map URIs to integers
for things they 'understand' at instantiation time, and store those values for
use in the audio thread without doing any string comparison. This allows the
extensibility of RDF with the performance of integers (or centrally defined
enumerations).</p>
""" .
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