A fork of Intel's Hyperscan, modified to run on more platforms. Currently ARM NEON/ASIMD is 100% functional, and Power VSX are in development. ARM SVE2 will be implemented when harwdare becomes accessible to the developers. More platforms will follow in the future, on demand/request.
Vectorscan will follow Intel's API and internal algorithms where possible, but will not hesitate to make code changes where it is thought of giving better performance or better portability. In addition, the code will be gradually simplified and made more uniform and all architecture specific -currently Intel- #ifdefs will be removed and abstracted away.
Originally, the ARM porting was supposed to be merged into Intel's own Hyperscan, and 2 Pull Requests had been made to the project for this reason (1, 2). Instead of a review on technical issues, Intel outright rejected any multi-architecture support for Hyperscan, for now and the forseeable future and we were forced to fork. However, we are firm open source believers and in the end this can only be a good thing, as it gives us the opportunity to make further modifications and optimizations in the code, which could not be done otherwise.
Hyperscan is a high-performance multiple regex matching library. It follows the regular expression syntax of the commonly-used libpcre library, but is a standalone library with its own C API.
Hyperscan uses hybrid automata techniques to allow simultaneous matching of large numbers (up to tens of thousands) of regular expressions and for the matching of regular expressions across streams of data.
Vectorscan is typically used in a DPI library stack, just like Hyperscan.
Information on building the Hyperscan library and using its API is available in the Developer Reference Guide.
Vectorscan, like Hyperscan is licensed under the BSD License. See the LICENSE file in the project repository.
The master branch on Github will always contain the most recent release of
Hyperscan. Each version released to master goes through QA and testing before
it is released; if you're a user, rather than a developer, this is the version
you should be using.
Further development towards the next release takes place on the develop
branch.
The official homepage for Vectorscan is at www.github.com/VectorCamp/vectorscan.
The official homepage for Hyperscan is at www.hyperscan.io.
If you have questions or comments, we encourage you to join the mailing list. Bugs can be filed by sending email to the list, or by creating an issue on Github.
If you wish to contact the Hyperscan team at Intel directly, without posting publicly to the mailing list, send email to hyperscan@intel.com.