C++11 utilities for lexing and parsing of script languages, configuration files and command-lines.
lexer.hpp contains a lightweight lexicographical scanner capable of scanning C-like languages.
Code was adapted from the lexer used by the id Tech 4 engine and the DOOM 3 game (available here).
preprocessor.hpp contains a (mostly) feature-complete preprocessor for C-like languages.
It supports include files, conditional directives, macro constants, function-like macros, variadic macros and the $eval()
extension capable of resolving simple arithmetical and logical expressions. This class is loosely based on idParser from id Tech 4.
The C++ classes are header only and self contained. You have to include the .hpp in one source file
and define XYZ_IMPLEMENTATION to generate the implementation code in that source file. After that,
the header can be used as a normal C++ header. This is in the same spirit of the stb libraries.
See the tests/ directory for usage examples and test code.
Code in this repository is released under the terms of the GNU GPL version 3, to comply with the license used by code this work was based on.