Crate sophia

This meta-crate aims to provide a comprehensive toolkit for working with RDF and Linked Data in Rust.

RDF is a data model designed to exchange knowledge on the Web in an interoperable way. Each piece of knowledge in RDF (a statement) is represented by a triple, made of three terms. A set of triples forms an RDF graph. Finally, several graphs can be grouped in a collection called a dataset, where each graph is identified by a unique name.

Generalized vs. Strict RDF model

The data model supported by this crate is in fact a superset of the RDF data model as defined by the W3C. When the distinction matters, they will be called, respectively, the generalized RDF model, and the strict RDF model.

Getting Started

Following a short example how to build a graph, mutate it and serialize it back.

use sophia::graph::{*, inmem::FastGraph};
use sophia::ns::Namespace;
use sophia::parser::turtle;
use sophia::serializer::*;
use sophia::serializer::nt::NtSerializer;
use sophia::triple::stream::TripleSource;

let example = r#"
    @prefix : <http://example.org/>.
    @prefix foaf: <http://xmlns.com/foaf/0.1/>.

    :alice foaf:name "Alice";
           foaf:mbox <mailto:alice@work.example> .

    :bob foaf:name "Bob".
"#;
let mut graph: FastGraph = turtle::parse_str(example).collect_triples()?;

let ex = Namespace::new("http://example.org/")?;
let foaf = Namespace::new("http://xmlns.com/foaf/0.1/")?;
graph.insert(
    &ex.get("bob")?,
    &foaf.get("knows")?,
    &ex.get("alice")?,
)?;

let mut nt_stringifier = NtSerializer::new_stringifier();
let example2 = nt_stringifier.serialize_graph(&mut graph)?.as_str();
println!("The resulting graph\n{}", example2);

Modules

dataset

This module re-exports symbols from sophia_api::dataset, sophia_indexed::dataset and sophia_inmem::dataset.

graph

This module re-exports symbols from sophia_api::graph, sophia_indexed::graph and sophia_inmem::graph.

iri

This module re-exports symbols from sophia_iri.

ns

This module re-exports symbols from sophia_api::ns.

parser

This module re-exports symbols from sophia_api::parser and sophia_turtle::parser. If the xml feature is enabled, it also re-exports sophia_xml::parser as xml.

prefix

This module re-exports symbols from sophia_api::prefix.

quad

This module re-exports symbols from sophia_api::quad.

query

Query processing over RDF graphs and datasets.

serializer

This module re-exports symbols from sophia_api::serializer and sophia_turtle::serializer. If the xml feature is enabled, it also re-exports sophia_xml::serializer as xml.

sparql

This module re-exports symbols from sophia_api::sparql.

term

This module re-exports symbols from This module re-exports symbols from sophia_api::term and sophia_term.

triple

This module re-exports symbols from sophia_api::triple.