LV2 subproject with meson
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# LV2 plugins are installed in a ``bundle'', a directory with a standard
# structure. Each bundle has a Turtle file named `manifest.ttl` which lists
# the contents of the bundle.
#
# Hosts typically read the manifest of every installed bundle to discover
# plugins on start-up, so it should be as small as possible for performance
# reasons. Details that are only useful if the host chooses to load the plugin
# are stored in other files and linked to from `manifest.ttl`.
#
# ==== URIs ====
#
# LV2 makes use of URIs as globally-unique identifiers for resources. For
# example, the ID of the plugin described here is
# `<http://lv2plug.in/plugins/eg-amp>`. Note that URIs are only used as
# identifiers and don't necessarily imply that something can be accessed at
# that address on the web (though that may be the case).
#
# ==== Namespace Prefixes ====
#
# Turtle files contain many URIs, but prefixes can be defined to improve
# readability. For example, with the `lv2:` prefix below, `lv2:Plugin` can be
# written instead of `<http://lv2plug.in/ns/lv2core#Plugin>`.
@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
# ==== Describing a Plugin ====
# Turtle files contain a set of ``statements'' which describe resources.
# This file contains 3 statements:
# [options="header"]
# |================================================================
# | Subject | Predicate | Object
# | <http://lv2plug.in/plugins/eg-amp> | a | lv2:Plugin
# | <http://lv2plug.in/plugins/eg-amp> | lv2:binary | <amp.so>
# | <http://lv2plug.in/plugins/eg-amp> | rdfs:seeAlso | <amp.ttl>
# |================================================================
# Firstly, `<http://lv2plug.in/plugins/eg-amp>` is an LV2 plugin:
<http://lv2plug.in/plugins/eg-amp> a lv2:Plugin .
# The predicate ```a`'' is a Turtle shorthand for `rdf:type`.
# The binary of that plugin can be found at `<amp.ext>`:
<http://lv2plug.in/plugins/eg-amp> lv2:binary <amp@LIB_EXT@> .
# This file is a template; the token `@LIB_EXT@` is replaced by the build
# system with the appropriate extension for the current platform before
# installation. For example, in the output `manifest.ttl`, the binary would be
# listed as `<amp.so>`. Relative URIs in manifests are relative to the bundle
# directory, so this refers to a binary with the given name in the same
# directory as this manifest.
# Finally, more information about this plugin can be found in `<amp.ttl>`:
<http://lv2plug.in/plugins/eg-amp> rdfs:seeAlso <amp.ttl> .
# ==== Abbreviation ====
#
# This file shows these statements individually for instructive purposes, but
# the subject `<http://lv2plug.in/plugins/eg-amp>` is repetitive. Turtle
# allows the semicolon to be used as a delimiter that repeats the previous
# subject. For example, this manifest would more realistically be written like
# so:
<http://lv2plug.in/plugins/eg-amp>
a lv2:Plugin ;
lv2:binary <amp@LIB_EXT@> ;
rdfs:seeAlso <amp.ttl> .