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-# LV2 String Port Extension.
-# Draft Revision 3
-# Copyright (C) 2008 Krzysztof Foltman
-#
-# Permission is hereby granted, free of charge, to any person obtaining a
-# copy of this software and associated documentation files (the "Software"),
-# to deal in the Software without restriction, including without limitation
-# the rights to use, copy, modify, merge, publish, distribute, sublicense,
-# and/or sell copies of the Software, and to permit persons to whom the
-# Software is furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included
-# in all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
-# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-# OTHER DEALINGS IN THE SOFTWARE.
-
-@prefix sp: <http://lv2plug.in/ns/ext/string-port#> .
-@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
-@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
-@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
-@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
-@prefix doap: <http://usefulinc.com/ns/doap#> .
-@prefix foaf: <http://xmlns.com/foaf/0.1/> .
-
-<http://lv2plug.in/ns/ext/string-port> a lv2:Specification ;
- doap:license <http://usefulinc.com/doap/licenses/mit> ;
- doap:name "LV2 String Ports" ;
- doap:maintainer [
- a foaf:Person ;
- foaf:name "Krzysztof Foltman" ;
- ] ;
- lv2:documentation """
-<p>Defines ports which contain string data.</p>
-
-<h4>UI issues</h4>
-<p>When using port_event / write_port (and possible other communication
-mechanisms), the format parameter should contain the numeric value of URI
-LV2_STRING_PORT_URI (mapped with http://lv2plug.in/ns/extensions/ui specified
-as map URI).</p>
-
-<p>It's probably possible to use ports belonging to message context
-&lt;http://lv2plug.in/ns/ext/contexts#MessageContext&gt; for transfer. However,
-contexts mechanism does not offer any way to notify the message recipient about
-which ports have been changed. To remedy that, this extension defines a flag
-LV2_STRING_DATA_CHANGED_FLAG that carries that information inside a port value
-structure.</p>
-
-<h4>Storage</h4>
-<p>The value of string port are assumed to be "persistent": if a host saves and
-restores a state of a plugin (e.g. control port values), the values of input
-string ports should also be assumed to belong to that state. This also applies
-to message context: if a session is being restored, the host MUST resend the
-last value that was sent to the port before session has been saved. In other
-words, string port values "stick" to message ports.</p>
-""" .
-
-sp:StringTransfer a lv2:Feature ;
- rdfs:label "String data transfer via LV2_String_Data" .
-
-sp:StringPort a lv2:Port ;
- rdfs:label "String port" ;
- lv2:documentation """
-<p>Indicates that the port data points to a LV2_String_Data structure
-as defined in accompanying header file.</p>
-
-<h4>Input Port Semantics</h4>
-<p>If the port does not have a context specified (it runs in the default,
-realtime audio processing context), the values in the structure and the actual
-string data MUST remain unchanged for the time a run() function of a plugin
-is executed. However, if the port belongs to a different context, the same
-data MUST remain unchanged only for the time a run() or message_process()
-function of a given context is executed.</p>
-
-<h4>Output Port Semantics</h4>
-<p>The plugin may only change the string or length in a run() function (if
-the port belongs to default context) or in context-defined counterparts
-(if the port belongs to another context). Because of that, using default
-context output string ports is contraindicated for longer strings.</p>
-""" .
-
-sp:default a rdf:Property ;
- rdfs:label "Default value" ;
- rdfs:domain sp:StringPort ;
- rdfs:range xsd:string ;
- rdfs:comment """
-Gives a default value for a string port.
-""" .
-
-sp:requiredSpace a rdf:Property ;
- rdfs:label "Required storage space in bytes" ;
- rdfs:domain sp:StringPort ;
- rdfs:range xsd:nonNegativeInteger ;
- rdfs:comment """
-Specifies required buffer space for output string ports and those of
-input string ports that are meant to be GUI-controlled. The host MUST
-allocate a buffer of at least required size to accommodate for all values
-that can be produced by the plugin.
-""" .
-