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Dan Hirsch b0f567c090 Added new build system
2013-07-10 21:32:05 +02:00
docs Finshed up the regex backend 2013-04-26 20:36:54 -07:00
examples Added new build system 2013-07-10 21:32:05 +02:00
jni Switched sequence and choice in JNI to varargs 2013-05-16 11:32:37 +02:00
lib Fixed a bug in hush 2012-05-26 13:13:56 +02:00
src Added new build system 2013-07-10 21:32:05 +02:00
.gitignore merging in aegis' JNI bindings 2013-05-23 00:58:27 -07:00
common.mk Added new build system 2013-07-10 21:32:05 +02:00
config.mk Refactored tests; make just builds library, make test builds/runs tests 2012-11-13 22:29:25 -05:00
Doxyfile Tweaked docs 2012-11-13 22:42:25 -05:00
HACKING Refactored all of the desugaring code to no longer depend on memory being initialized to 0. Everything is about 12% faster now. 2013-05-25 03:35:42 +02:00
LICENSE Licensing under GPL v2. 2012-04-23 00:02:42 +01:00
Makefile Added new build system 2013-07-10 21:32:05 +02:00
NOTES Added benchmark skeleton, and at least stubs for all of the necessary functions 2012-11-02 17:16:53 -04:00
README.md Added new build system 2013-07-10 21:32:05 +02:00
SConstruct Added new build system 2013-07-10 21:32:05 +02:00
TODO Added benchmark skeleton, and at least stubs for all of the necessary functions 2012-11-02 17:16:53 -04:00

README.md

Hammer is a parsing library. Like many modern parsing libraries, it provides a parser combinator interface for writing grammars as inline domain-specific languages, but Hammer also provides a variety of parsing backends. It's also bit-oriented rather than character-oriented, making it ideal for parsing binary data such as images, network packets, audio, and executables.

Hammer is written in C, but will provide bindings for other languages. If you don't see a language you're interested in on the list, just ask.

Hammer currently builds under Linux. (Windows and OSX are coming.)

Features

  • Bit-oriented -- grammars can include single-bit flags or multi-bit constructs that span character boundaries, with no hassle
  • Thread-safe, reentrant
  • Benchmarking for parsing backends -- determine empirically which backend will be most time-efficient for your grammar
  • Parsing backends:
    • Packrat parsing
    • LL(k)
    • GLR
    • LALR
    • Regular expressions
  • Language bindings:
    • C++ (not yet implemented)
    • Java
    • Python (not yet implemented)
    • Ruby (not yet implemented)
    • Perl (not yet implemented)
    • Go (not yet implemented)
    • PHP (not yet implemented)
    • .NET (not yet implemented)

Installing

Prerequisites

  • SCons
  • a JDK

Optional Dependencies

  • pkg-config (for make test)
  • glib-2.0 (>= 2.29) (for make test)
  • glib-2.0-dev (for make test)

To build, type scons. To run the built-in test suite, type scons test. For a debug build, add --variant=debug

If jni.h and jni_md.h aren't already somewhere on your include path, prepend C_INCLUDE_PATH=/path/to/jdk/include to that.

There is currently no install target; to make Hammer available system-wide, copy libhammer.a and libhammer.so from build/opt/src to /usr/lib/ (or /usr/local/lib/, or wherever ld will find it) and hammer.h to /usr/include/.

Usage

Just #include <hammer.h> and link with -lhammer.

Examples

The examples/ directory contains some simple examples, currently including:

  • base64
  • DNS

Community

Please join us at #hammer on irc.upstandinghackers.com if you have any questions or just want to talk about parsing.

Contact

You can also email us at hammer@upstandinghackers.com.