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+/*
+ This file is part of Ingen.
+ Copyright 2007-2017 David Robillard <http://drobilla.net/>
+
+ Ingen is free software: you can redistribute it and/or modify it under the
+ terms of the GNU Affero General Public License as published by the Free
+ Software Foundation, either version 3 of the License, or any later version.
+
+ Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE. See the GNU Affero General Public License for details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with Ingen. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <map>
+#include <set>
+#include <string>
+#include <utility>
+
+#include "ingen/Atom.hpp"
+#include "ingen/AtomForgeSink.hpp"
+#include "ingen/Forge.hpp"
+#include "ingen/Interface.hpp"
+#include "ingen/Log.hpp"
+#include "ingen/Parser.hpp"
+#include "ingen/URI.hpp"
+#include "ingen/URIMap.hpp"
+#include "ingen/URIs.hpp"
+#include "ingen/World.hpp"
+#include "ingen/filesystem.hpp"
+#include "ingen/paths.hpp"
+#include "lv2/atom/atom.h"
+#include "serd/serd.h"
+#include "sord/sordmm.hpp"
+#include "sratom/sratom.h"
+
+#define NS_RDF "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+#define NS_RDFS "http://www.w3.org/2000/01/rdf-schema#"
+
+namespace ingen {
+
+std::set<Parser::ResourceRecord>
+Parser::find_resources(Sord::World& world,
+ const URI& manifest_uri,
+ const URI& type_uri)
+{
+ const Sord::URI base (world, manifest_uri.string());
+ const Sord::URI type (world, type_uri.string());
+ const Sord::URI rdf_type (world, NS_RDF "type");
+ const Sord::URI rdfs_seeAlso(world, NS_RDFS "seeAlso");
+ const Sord::Node nil;
+
+ SerdEnv* env = serd_env_new(sord_node_to_serd_node(base.c_obj()));
+ Sord::Model model(world, manifest_uri.string());
+ model.load_file(env, SERD_TURTLE, manifest_uri.string());
+
+ std::set<ResourceRecord> resources;
+ for (Sord::Iter i = model.find(nil, rdf_type, type); !i.end(); ++i) {
+ const Sord::Node resource = i.get_subject();
+ const std::string resource_uri = resource.to_c_string();
+ std::string file_path = "";
+ Sord::Iter f = model.find(resource, rdfs_seeAlso, nil);
+ if (!f.end()) {
+ uint8_t* p = serd_file_uri_parse(f.get_object().to_u_string(), nullptr);
+ file_path = (const char*)p;
+ serd_free(p);
+ }
+ resources.insert(ResourceRecord(resource, file_path));
+ }
+
+ serd_env_free(env);
+ return resources;
+}
+
+static boost::optional<Raul::Path>
+get_path(const URI base, const URI uri)
+{
+ const URI relative = uri.make_relative(base);
+ const std::string uri_str = "/" + relative.string();
+ return Raul::Path::is_valid(uri_str) ? Raul::Path(uri_str)
+ : boost::optional<Raul::Path>();
+}
+
+static bool
+skip_property(ingen::URIs& uris, const Sord::Node& predicate)
+{
+ return (predicate == INGEN__file ||
+ predicate == uris.ingen_arc ||
+ predicate == uris.ingen_block ||
+ predicate == uris.lv2_port);
+}
+
+static Properties
+get_properties(ingen::World* world,
+ Sord::Model& model,
+ const Sord::Node& subject,
+ Resource::Graph ctx,
+ boost::optional<Properties> data = {})
+{
+ LV2_URID_Map* map = &world->uri_map().urid_map_feature()->urid_map;
+ Sratom* sratom = sratom_new(map);
+
+ LV2_Atom_Forge forge;
+ lv2_atom_forge_init(&forge, map);
+
+ AtomForgeSink out(&forge);
+
+ const Sord::Node nil;
+ Properties props;
+ for (Sord::Iter i = model.find(subject, nil, nil); !i.end(); ++i) {
+ if (!skip_property(world->uris(), i.get_predicate())) {
+ out.clear();
+ sratom_read(sratom, &forge, world->rdf_world()->c_obj(),
+ model.c_obj(), i.get_object().c_obj());
+ const LV2_Atom* atom = out.atom();
+ Atom atomm;
+ atomm = world->forge().alloc(
+ atom->size, atom->type, LV2_ATOM_BODY_CONST(atom));
+ props.emplace(i.get_predicate(), Property(atomm, ctx));
+ }
+ }
+
+ sratom_free(sratom);
+
+ // Replace any properties given in `data`
+ if (data) {
+ for (const auto& prop : *data) {
+ if (ctx == Resource::Graph::DEFAULT ||
+ prop.second.context() == ctx) {
+ props.erase(prop.first);
+ }
+ }
+
+ for (const auto& prop : *data) {
+ if (ctx == Resource::Graph::DEFAULT ||
+ prop.second.context() == ctx) {
+ props.emplace(prop);
+ }
+ }
+ }
+
+ return props;
+}
+
+typedef std::pair<Raul::Path, Properties> PortRecord;
+
+static boost::optional<PortRecord>
+get_port(ingen::World* world,
+ Sord::Model& model,
+ const Sord::Node& subject,
+ Resource::Graph ctx,
+ const Raul::Path& parent,
+ uint32_t* index)
+{
+ const URIs& uris = world->uris();
+
+ // Get all properties
+ Properties props = get_properties(world, model, subject, ctx);
+
+ // Get index if requested (for Graphs)
+ if (index) {
+ Properties::const_iterator i = props.find(uris.lv2_index);
+ if (i == props.end()
+ || i->second.type() != world->forge().Int
+ || i->second.get<int32_t>() < 0) {
+ world->log().error(fmt("Port %1% has no valid index\n") % subject);
+ return boost::optional<PortRecord>();
+ }
+ *index = i->second.get<int32_t>();
+ }
+
+ // Get symbol
+ Properties::const_iterator s = props.find(uris.lv2_symbol);
+ std::string sym;
+ if (s != props.end() && s->second.type() == world->forge().String) {
+ sym = s->second.ptr<char>();
+ } else {
+ const std::string subject_str = subject.to_string();
+ const size_t last_slash = subject_str.find_last_of("/");
+
+ sym = ((last_slash == std::string::npos)
+ ? subject_str
+ : subject_str.substr(last_slash + 1));
+ }
+
+ if (!Raul::Symbol::is_valid(sym)) {
+ world->log().error(fmt("Port %1% has invalid symbol `%2%'\n")
+ % subject % sym);
+ return boost::optional<PortRecord>();
+ }
+
+ const Raul::Symbol port_sym(sym);
+ const Raul::Path port_path(parent.child(port_sym));
+
+ props.erase(uris.lv2_symbol); // Don't set symbol property in engine
+ return make_pair(port_path, props);
+}
+
+static boost::optional<Raul::Path>
+parse(
+ World* world,
+ Interface* target,
+ Sord::Model& model,
+ const URI& base_uri,
+ Sord::Node& subject,
+ boost::optional<Raul::Path> parent = boost::optional<Raul::Path>(),
+ boost::optional<Raul::Symbol> symbol = boost::optional<Raul::Symbol>(),
+ boost::optional<Properties> data = boost::optional<Properties>());
+
+static boost::optional<Raul::Path>
+parse_graph(
+ World* world,
+ Interface* target,
+ Sord::Model& model,
+ const URI& base_uri,
+ const Sord::Node& subject,
+ Resource::Graph ctx,
+ boost::optional<Raul::Path> parent = boost::optional<Raul::Path>(),
+ boost::optional<Raul::Symbol> symbol = boost::optional<Raul::Symbol>(),
+ boost::optional<Properties> data = boost::optional<Properties>());
+
+static boost::optional<Raul::Path>
+parse_block(
+ World* world,
+ Interface* target,
+ Sord::Model& model,
+ const URI& base_uri,
+ const Sord::Node& subject,
+ const Raul::Path& path,
+ boost::optional<Properties> data = boost::optional<Properties>());
+
+static bool
+parse_arcs(
+ World* world,
+ Interface* target,
+ Sord::Model& model,
+ const URI& base_uri,
+ const Sord::Node& subject,
+ const Raul::Path& graph);
+
+static boost::optional<Raul::Path>
+parse_block(ingen::World* world,
+ ingen::Interface* target,
+ Sord::Model& model,
+ const URI& base_uri,
+ const Sord::Node& subject,
+ const Raul::Path& path,
+ boost::optional<Properties> data)
+{
+ const URIs& uris = world->uris();
+
+ // Try lv2:prototype and old ingen:prototype for backwards compatibility
+ const Sord::URI prototype_predicates[] = {
+ Sord::URI(*world->rdf_world(), uris.lv2_prototype),
+ Sord::URI(*world->rdf_world(), uris.ingen_prototype)
+ };
+
+ // Get prototype
+ Sord::Node prototype;
+ for (const Sord::URI& pred : prototype_predicates) {
+ prototype = model.get(subject, pred, Sord::Node());
+ if (prototype.is_valid()) {
+ break;
+ }
+ }
+
+ if (!prototype.is_valid()) {
+ world->log().error(
+ fmt("Block %1% (%2%) missing mandatory lv2:prototype\n") %
+ subject % path);
+ return boost::optional<Raul::Path>();
+ }
+
+ const uint8_t* type_uri = (const uint8_t*)prototype.to_c_string();
+ if (!serd_uri_string_has_scheme(type_uri) ||
+ !strncmp((const char*)type_uri, "file:", 5)) {
+ // Prototype is a file, subgraph
+ SerdURI base_uri_parts;
+ serd_uri_parse((const uint8_t*)base_uri.c_str(), &base_uri_parts);
+
+ SerdURI ignored;
+ SerdNode sub_uri = serd_node_new_uri_from_string(
+ type_uri,
+ &base_uri_parts,
+ &ignored);
+
+ const std::string sub_uri_str = (const char*)sub_uri.buf;
+ const std::string sub_file = sub_uri_str + "/main.ttl";
+
+ const SerdNode sub_base = serd_node_from_string(
+ SERD_URI, (const uint8_t*)sub_file.c_str());
+
+ Sord::Model sub_model(*world->rdf_world(), sub_file);
+ SerdEnv* env = serd_env_new(&sub_base);
+ sub_model.load_file(env, SERD_TURTLE, sub_file);
+ serd_env_free(env);
+
+ Sord::URI sub_node(*world->rdf_world(), sub_file);
+ parse_graph(world, target, sub_model, sub_base,
+ sub_node, Resource::Graph::INTERNAL,
+ path.parent(), Raul::Symbol(path.symbol()), data);
+
+ parse_graph(world, target, model, base_uri,
+ subject, Resource::Graph::EXTERNAL,
+ path.parent(), Raul::Symbol(path.symbol()), data);
+ } else {
+ // Prototype is non-file URI, plugin
+ Properties props = get_properties(
+ world, model, subject, Resource::Graph::DEFAULT, data);
+ props.emplace(uris.rdf_type, uris.forge.make_urid(uris.ingen_Block));
+ target->put(path_to_uri(path), props);
+ }
+ return path;
+}
+
+static boost::optional<Raul::Path>
+parse_graph(ingen::World* world,
+ ingen::Interface* target,
+ Sord::Model& model,
+ const URI& base_uri,
+ const Sord::Node& subject,
+ Resource::Graph ctx,
+ boost::optional<Raul::Path> parent,
+ boost::optional<Raul::Symbol> symbol,
+ boost::optional<Properties> data)
+{
+ const URIs& uris = world->uris();
+
+ const Sord::URI ingen_block(*world->rdf_world(), uris.ingen_block);
+ const Sord::URI lv2_port(*world->rdf_world(), LV2_CORE__port);
+
+ const Sord::Node& graph = subject;
+ const Sord::Node nil;
+
+ // Build graph path and symbol
+ Raul::Path graph_path;
+ if (parent && symbol) {
+ graph_path = parent->child(*symbol);
+ } else if (parent) {
+ graph_path = *parent;
+ } else {
+ graph_path = Raul::Path("/");
+ }
+
+ if (!symbol) {
+ symbol = Raul::Symbol("_");
+ }
+
+ // Create graph
+ Properties props = get_properties(world, model, subject, ctx, data);
+ target->put(path_to_uri(graph_path), props, ctx);
+
+ // For each port on this graph
+ typedef std::map<uint32_t, PortRecord> PortRecords;
+ PortRecords ports;
+ for (Sord::Iter p = model.find(graph, lv2_port, nil); !p.end(); ++p) {
+ Sord::Node port = p.get_object();
+
+ // Get all properties
+ uint32_t index = 0;
+ boost::optional<PortRecord> port_record = get_port(
+ world, model, port, ctx, graph_path, &index);
+ if (!port_record) {
+ world->log().error(fmt("Invalid port %1%\n") % port);
+ return boost::optional<Raul::Path>();
+ }
+
+ // Store port information in ports map
+ if (ports.find(index) == ports.end()) {
+ ports[index] = *port_record;
+ } else {
+ world->log().error(fmt("Ignored port %1% with duplicate index %2%\n")
+ % port % index);
+ }
+ }
+
+ // Create ports in order by index
+ for (const auto& p : ports) {
+ target->put(path_to_uri(p.second.first),
+ p.second.second,
+ ctx);
+ }
+
+ if (ctx != Resource::Graph::INTERNAL) {
+ return graph_path; // Not parsing graph internals, finished now
+ }
+
+ // For each block in this graph
+ for (Sord::Iter n = model.find(subject, ingen_block, nil); !n.end(); ++n) {
+ Sord::Node node = n.get_object();
+ URI node_uri = node;
+ assert(!node_uri.path().empty() && node_uri.path() != "/");
+ const Raul::Path block_path = graph_path.child(
+ Raul::Symbol(FilePath(node_uri.path()).stem().string()));
+
+ // Parse and create block
+ parse_block(world, target, model, base_uri, node, block_path,
+ boost::optional<Properties>());
+
+ // For each port on this block
+ for (Sord::Iter p = model.find(node, lv2_port, nil); !p.end(); ++p) {
+ Sord::Node port = p.get_object();
+
+ Resource::Graph subctx = Resource::Graph::DEFAULT;
+ if (!model.find(node,
+ Sord::URI(*world->rdf_world(), uris.rdf_type),
+ Sord::URI(*world->rdf_world(), uris.ingen_Graph)).end()) {
+ subctx = Resource::Graph::EXTERNAL;
+ }
+
+ // Get all properties
+ boost::optional<PortRecord> port_record = get_port(
+ world, model, port, subctx, block_path, nullptr);
+ if (!port_record) {
+ world->log().error(fmt("Invalid port %1%\n") % port);
+ return boost::optional<Raul::Path>();
+ }
+
+ // Create port and/or set all port properties
+ target->put(path_to_uri(port_record->first),
+ port_record->second,
+ subctx);
+ }
+ }
+
+ // Now that all ports and blocks exist, create arcs inside graph
+ parse_arcs(world, target, model, base_uri, subject, graph_path);
+
+ return graph_path;
+}
+
+static bool
+parse_arc(ingen::World* world,
+ ingen::Interface* target,
+ Sord::Model& model,
+ const URI& base_uri,
+ const Sord::Node& subject,
+ const Raul::Path& graph)
+{
+ const URIs& uris = world->uris();
+
+ const Sord::URI ingen_tail(*world->rdf_world(), uris.ingen_tail);
+ const Sord::URI ingen_head(*world->rdf_world(), uris.ingen_head);
+ const Sord::Node nil;
+
+ Sord::Iter t = model.find(subject, ingen_tail, nil);
+ Sord::Iter h = model.find(subject, ingen_head, nil);
+
+ if (t.end()) {
+ world->log().error("Arc has no tail\n");
+ return false;
+ } else if (h.end()) {
+ world->log().error("Arc has no head\n");
+ return false;
+ }
+
+ const boost::optional<Raul::Path> tail_path = get_path(
+ base_uri, t.get_object());
+ if (!tail_path) {
+ world->log().error("Arc tail has invalid URI\n");
+ return false;
+ }
+
+ const boost::optional<Raul::Path> head_path = get_path(
+ base_uri, h.get_object());
+ if (!head_path) {
+ world->log().error("Arc head has invalid URI\n");
+ return false;
+ }
+
+ if (!(++t).end()) {
+ world->log().error("Arc has multiple tails\n");
+ return false;
+ } else if (!(++h).end()) {
+ world->log().error("Arc has multiple heads\n");
+ return false;
+ }
+
+ target->connect(graph.child(*tail_path), graph.child(*head_path));
+
+ return true;
+}
+
+static bool
+parse_arcs(ingen::World* world,
+ ingen::Interface* target,
+ Sord::Model& model,
+ const URI& base_uri,
+ const Sord::Node& subject,
+ const Raul::Path& graph)
+{
+ const Sord::URI ingen_arc(*world->rdf_world(), world->uris().ingen_arc);
+ const Sord::Node nil;
+
+ for (Sord::Iter i = model.find(subject, ingen_arc, nil); !i.end(); ++i) {
+ parse_arc(world, target, model, base_uri, i.get_object(), graph);
+ }
+
+ return true;
+}
+
+static boost::optional<Raul::Path>
+parse(ingen::World* world,
+ ingen::Interface* target,
+ Sord::Model& model,
+ const URI& base_uri,
+ Sord::Node& subject,
+ boost::optional<Raul::Path> parent,
+ boost::optional<Raul::Symbol> symbol,
+ boost::optional<Properties> data)
+{
+ const URIs& uris = world->uris();
+
+ const Sord::URI graph_class (*world->rdf_world(), uris.ingen_Graph);
+ const Sord::URI block_class (*world->rdf_world(), uris.ingen_Block);
+ const Sord::URI arc_class (*world->rdf_world(), uris.ingen_Arc);
+ const Sord::URI internal_class(*world->rdf_world(), uris.ingen_Internal);
+ const Sord::URI in_port_class (*world->rdf_world(), LV2_CORE__InputPort);
+ const Sord::URI out_port_class(*world->rdf_world(), LV2_CORE__OutputPort);
+ const Sord::URI lv2_class (*world->rdf_world(), LV2_CORE__Plugin);
+ const Sord::URI rdf_type (*world->rdf_world(), uris.rdf_type);
+ const Sord::Node nil;
+
+ // Parse explicit subject graph
+ if (subject.is_valid()) {
+ return parse_graph(world, target, model, base_uri,
+ subject, Resource::Graph::INTERNAL,
+ parent, symbol, data);
+ }
+
+ // Get all subjects and their types (?subject a ?type)
+ typedef std::map< Sord::Node, std::set<Sord::Node> > Subjects;
+ Subjects subjects;
+ for (Sord::Iter i = model.find(subject, rdf_type, nil); !i.end(); ++i) {
+ const Sord::Node& subject = i.get_subject();
+ const Sord::Node& rdf_class = i.get_object();
+
+ assert(rdf_class.is_uri());
+ auto s = subjects.find(subject);
+ if (s == subjects.end()) {
+ std::set<Sord::Node> types;
+ types.insert(rdf_class);
+ subjects.emplace(subject, types);
+ } else {
+ s->second.insert(rdf_class);
+ }
+ }
+
+ // Parse and create each subject
+ for (const auto& i : subjects) {
+ const Sord::Node& s = i.first;
+ const std::set<Sord::Node>& types = i.second;
+ boost::optional<Raul::Path> ret;
+ if (types.find(graph_class) != types.end()) {
+ ret = parse_graph(world, target, model, base_uri,
+ s, Resource::Graph::INTERNAL,
+ parent, symbol, data);
+ } else if (types.find(block_class) != types.end()) {
+ const Raul::Path rel_path(*get_path(base_uri, s));
+ const Raul::Path path = parent ? parent->child(rel_path) : rel_path;
+ ret = parse_block(world, target, model, base_uri, s, path, data);
+ } else if (types.find(in_port_class) != types.end() ||
+ types.find(out_port_class) != types.end()) {
+ const Raul::Path rel_path(*get_path(base_uri, s));
+ const Raul::Path path = parent ? parent->child(rel_path) : rel_path;
+ const Properties properties = get_properties(
+ world, model, s, Resource::Graph::DEFAULT, data);
+ target->put(path_to_uri(path), properties);
+ ret = path;
+ } else if (types.find(arc_class) != types.end()) {
+ Raul::Path parent_path(parent ? parent.get() : Raul::Path("/"));
+ parse_arc(world, target, model, base_uri, s, parent_path);
+ } else {
+ world->log().error("Subject has no known types\n");
+ }
+ }
+
+ return boost::optional<Raul::Path>();
+}
+
+bool
+Parser::parse_file(ingen::World* world,
+ ingen::Interface* target,
+ const FilePath& path,
+ boost::optional<Raul::Path> parent,
+ boost::optional<Raul::Symbol> symbol,
+ boost::optional<Properties> data)
+{
+ // Get absolute file path
+ FilePath file_path = path;
+ if (!file_path.is_absolute()) {
+ file_path = filesystem::current_path() / file_path;
+ }
+
+ // Find file to use as manifest
+ const bool is_bundle = filesystem::is_directory(file_path);
+ const FilePath manifest_path =
+ (is_bundle ? file_path / "manifest.ttl" : file_path);
+
+ URI manifest_uri(manifest_path);
+
+ // Find graphs in manifest
+ const std::set<ResourceRecord> resources = find_resources(
+ *world->rdf_world(), manifest_uri, URI(INGEN__Graph));
+
+ if (resources.empty()) {
+ world->log().error(fmt("No graphs found in %1%\n") % path);
+ return false;
+ }
+
+ /* Choose the graph to load. If this is a manifest, then there should only be
+ one, but if this is a graph file, subgraphs will be returned as well.
+ In this case, choose the one with the file URI. */
+ URI uri;
+ for (const ResourceRecord& r : resources) {
+ if (r.uri == URI(manifest_path)) {
+ uri = r.uri;
+ file_path = r.filename;
+ break;
+ }
+ }
+
+ if (uri.empty()) {
+ // Didn't find a graph with the same URI as the file, use the first
+ uri = (*resources.begin()).uri;
+ file_path = (*resources.begin()).filename;
+ }
+
+ if (file_path.empty()) {
+ // No seeAlso file, use manifest (probably the graph file itself)
+ file_path = manifest_path;
+ }
+
+ // Initialise parsing environment
+ const URI file_uri = URI(file_path);
+ const uint8_t* uri_c_str = (const uint8_t*)uri.c_str();
+ SerdNode base_node = serd_node_from_string(SERD_URI, uri_c_str);
+ SerdEnv* env = serd_env_new(&base_node);
+
+ // Load graph into model
+ Sord::Model model(*world->rdf_world(), uri.string(), SORD_SPO|SORD_PSO, false);
+ model.load_file(env, SERD_TURTLE, file_uri);
+ serd_env_free(env);
+
+ world->log().info(fmt("Loading %1% from %2%\n") % uri % file_path);
+ if (parent) {
+ world->log().info(fmt("Parent: %1%\n") % parent->c_str());
+ }
+ if (symbol) {
+ world->log().info(fmt("Symbol: %1%\n") % symbol->c_str());
+ }
+
+ Sord::Node subject(*world->rdf_world(), Sord::Node::URI, uri.string());
+ boost::optional<Raul::Path> parsed_path
+ = parse(world, target, model, model.base_uri(),
+ subject, parent, symbol, data);
+
+ if (parsed_path) {
+ target->set_property(path_to_uri(*parsed_path),
+ URI(INGEN__file),
+ world->forge().alloc_uri(uri.string()));
+ return true;
+ } else {
+ world->log().warn("Document URI lost\n");
+ return false;
+ }
+}
+
+boost::optional<URI>
+Parser::parse_string(ingen::World* world,
+ ingen::Interface* target,
+ const std::string& str,
+ const URI& base_uri,
+ boost::optional<Raul::Path> parent,
+ boost::optional<Raul::Symbol> symbol,
+ boost::optional<Properties> data)
+{
+ // Load string into model
+ Sord::Model model(*world->rdf_world(), base_uri, SORD_SPO|SORD_PSO, false);
+
+ SerdEnv* env = serd_env_new(nullptr);
+ if (!base_uri.empty()) {
+ const SerdNode base = serd_node_from_string(
+ SERD_URI, (const uint8_t*)base_uri.c_str());
+ serd_env_set_base_uri(env, &base);
+ }
+ model.load_string(env, SERD_TURTLE, str.c_str(), str.length(), base_uri);
+
+ URI actual_base((const char*)serd_env_get_base_uri(env, nullptr)->buf);
+ serd_env_free(env);
+
+ world->log().info(fmt("Parsing string (base %1%)\n") % base_uri);
+
+ Sord::Node subject;
+ parse(world, target, model, actual_base, subject, parent, symbol, data);
+ return actual_base;
+}
+
+} // namespace ingen