RegPanzer - library and compiler for regular expressions

RegPanzer library allows you to produce native match function for specified regular expression.

RegPanzerCompiler allows you to produce object file with such function.

RegPanzer uses PRCE regular expressions syntax. It is still in experimental stage, not all PCRE features is implemented now.

Basic usage

Produce matcher function using RegPanzerCompiler:

RegPanzerCompiler "[a-z]+[0-9]+" -o test.o --function-name=MatchWordWithNumber

Create header file for your language (C++, fro example):

size_t MatchWordWithNumber(
    const char* str,
    size_t str_size,
    size_t start_offset,
    size_t* out_subpatterns,
    size_t number_of_subpatterns);

Call this function from your program to perform match for your regular expression, link the object file (test.o) against your program.

How to build

Download/install LLVM library (LLVM 15.0.7 used in this project).

Run cmake for CmakeListst.txt in repository root to generate project for your favorite build system or IDE. Specify LLVM_SRC_DIR cmake variable if you wish to build RegPanzer based on LLVM library in source form OR specify LLVM_LIB_DIR variable to build RegPanzer using binary LLVM distribution.

Note that tests/benchamrk build supported only with LLVM in source form.

Authors

Copyright © 2021-2023 Artöm "Panzerscrek" Kunç.