This is yet another option parser for C++. It is modelled after the excellent Python optparse API. Although incomplete, anyone familiar to optparse should feel at home.
- Copyright (c) 2010 Johannes Weißl
- License: MIT License
- Elegant and easy usage more important than speed / flexibility
- Small size more important than feature completeness, e.g.:
- No unicode
- No checking for user programming errors
- No conflict handlers
- No adding of new actions
- Why not use getopt/getopt_long?
- Not C++ / not completely POSIX
- Too cumbersome to use, would need lot of additional code
- Why not use Boost.Program_options?
- Boost not installed on all target platforms (esp. cluster, HPC, ...)
- Too big to include just for option handling for many projects: 322 *.h (44750 lines) + 7 *.cpp (2078 lines)
- Why not use tclap/Opag/Options/CmdLine/Anyoption/Argument_helper/...?
- Similarity to Python desired for faster learning curve
- Support nargs > 1?
using optparse::OptionParser; OptionParser parser = OptionParser() .description("just an example"); parser.add_option("-f", "--file") .dest("filename") .help("write report to FILE") .metavar("FILE"); parser.add_option("-q", "--quiet") .action("store_false") .dest("verbose") .set_default("1") .help("don't print status messages to stdout"); optparse::Values options = parser.parse_args(argc, argv); vector<string> args = parser.args(); if (options.get("verbose")) cout << options["filename"] << endl;