| |
| This is my substring search workspace. |
| |
| Please read the `API documentation here`__ |
| |
| __ https://docs.rs/twoway/ |
| |
| |build_status|_ |crates|_ |
| |
| .. |build_status| image:: https://travis-ci.org/bluss/twoway.svg?branch=master |
| .. _build_status: https://travis-ci.org/bluss/twoway |
| |
| .. |crates| image:: http://meritbadge.herokuapp.com/twoway |
| .. _crates: https://crates.io/crates/twoway |
| |
| Documentation |
| ------------- |
| |
| Fast substring search for strings and byte strings, using the `two-way algorithm`_. |
| |
| This is the same code as is included in Rust's libstd to “power” ``str::find(&str)``, |
| but here it is exposed with some improvements: |
| |
| - Available for byte string searches using ``&[u8]`` |
| - Having an optional SSE4.2 accelerated version which is even faster. |
| - Using ``memchr`` for the single byte case, which is ultra fast. |
| |
| Use cargo feature ``pcmp`` to enable SSE4.2 / pcmpestri accelerated version (only the forward search). |
| |
| - ``twoway::find_bytes(text: &[u8], pattern: &[u8]) -> Option<usize>`` |
| - ``twoway::rfind_bytes(text: &[u8], pattern: &[u8]) -> Option<usize>`` |
| - ``twoway::find_str(text: &str, pattern: &str) -> Option<usize>`` |
| - ``twoway::rfind_str(text: &str, pattern: &str) -> Option<usize>`` |
| |
| Recent Changes |
| -------------- |
| |
| - 0.1.8 |
| |
| - Tweak crate keywords by @tari |
| - Only testing and benchmarking changes otherwise (no changes to the crate itself) |
| |
| - 0.1.7 |
| |
| - The crate is optionally ``no_std``. Regular and ``pcmp`` both support this |
| mode. |
| |
| - 0.1.6 |
| |
| - The hidden and internal test module set, technically pub, was removed from |
| standard compilation. |
| |
| - 0.1.5 |
| |
| - Update from an odds dependency to using ``unchecked-index`` instead |
| (only used by the pcmp feature). |
| - The hidden and internal test module tw, technically pub, was removed from |
| standard compilation. |
| |
| - 0.1.4 |
| |
| - Update memchr dependency to 2.0 |
| |
| - 0.1.3 |
| |
| - Link to docs.rs docs |
| - Drop ``pcmp``'s itertools dependency |
| - Update nightly code for recent changes |
| |
| - 0.1.2 |
| |
| - Internal improvements to the ``pcmp`` module. |
| |
| - 0.1.1 |
| |
| - Add ``rfind_bytes``, ``rfind_str`` |
| |
| - 0.1.0 |
| |
| - Initial release |
| - Add ``find_bytes``, ``find_str`` |
| |
| License |
| ------- |
| |
| MIT / APACHE-2.0 |
| |
| |
| Interesting Links |
| ----------------- |
| |
| .. _`two-way algorithm`: http://www-igm.univ-mlv.fr/~lecroq/string/node26.html |
| |
| - Two Way: http://www-igm.univ-mlv.fr/~lecroq/string/node26.html |
| - Matters Computational: http://www.jjj.de/fxt/#fxtbook |
| |
| |
| Notes |
| ----- |
| |
| Consider denying 0/n factorizations, see |
| http://lists.gnu.org/archive/html/bug-gnulib/2010-06/msg00184.html |
