Serd subproject with meson
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

65 lines
2.7 KiB

Serd
====
Serd is a lightweight C library for RDF syntax which supports reading and
writing [Turtle][], [TriG][], [NTriples][], and [NQuads][]. Serd is suitable
for performance-critical or resource-limited applications, such as serialising
very large data sets or embedded systems.
Features
--------
* **Free:** Serd is [Free Software][] released under the extremely liberal
[ISC license][].
* **Portable and Dependency-Free:** Serd has no external dependencies other
than the C standard library. It is known to compile with GCC, Clang, and
MSVC (as C++), and is tested on GNU/Linux, MacOS, and Windows.
* **Small:** Serd is implemented in a few thousand lines of C. It typically
compiles to about 100 KiB, or about 50 KiB stripped with size optimizations.
* **Fast and Lightweight:** Serd can stream abbreviated Turtle, unlike many
tools which must first build an internal model. This makes it particularly
useful for writing very large data sets, since it can do so using only a
small amount of memory. Serd is, to the author's knowledge, the fastest
Turtle reader/writer by a wide margin (see [Performance](#performance)
below).
* **Conformant and Well-Tested:** Serd passes all tests in the Turtle and TriG
test suites, correctly handles all "normal" examples in the URI
specification, and includes many additional tests which were written
manually or discovered with fuzz testing. The test suite is run
continuously on many platforms, has 100% code coverage by line, and runs
with zero memory errors or leaks.
Performance
-----------
The benchmarks below compare `serdi`, [rapper][], and [riot][] re-serialising
Turtle data generated by [sp2b][] on an i7-4980HQ running Debian 9. Of the
three, `serdi` is the fastest by a wide margin, and the only one that uses a
constant amount of memory (a single page) for all input sizes.
![Time](http://drobilla.gitlab.io/serd/images/serdi-time.svg)
![Throughput](http://drobilla.gitlab.io/serd/images/serdi-throughput.svg)
![Memory](http://drobilla.gitlab.io/serd/images/serdi-memory.svg)
Documentation
-------------
* [API reference](https://drobilla.gitlab.io/serd/doc/html/index.html)
* [`serdi` man page](https://drobilla.gitlab.io/serd/man/serdi.html)
-- David Robillard <d@drobilla.net>
[Turtle]: https://www.w3.org/TR/turtle/
[TriG]: https://www.w3.org/TR/trig/
[NTriples]: https://www.w3.org/TR/n-triples/
[NQuads]: https://www.w3.org/TR/n-quads/
[Free Software]: http://www.gnu.org/philosophy/free-sw.html
[ISC license]: http://opensource.org/licenses/isc
[rapper]: http://librdf.org/raptor/
[riot]: https://jena.apache.org/
[sp2b]: http://www2.informatik.uni-freiburg.de/~mschmidt/docs/sp2b.pdf