gflags
jarro2783/cxxopts
gflags | jarro2783/cxxopts | |
---|---|---|
4 | 15 | |
2,804 | 4,002 | |
0.6% | - | |
0.0 | 6.8 | |
5 months ago | 8 days ago | |
C++ | C++ | |
BSD 3-clause "New" or "Revised" License | MIT License |
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gflags
- All 1,400 Google Chrome CLI flags
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Resolved an issue in gflags which has been opened for about 7 years
Someone opened an issue at https://github.com/gflags/gflags/issues/76, to request for a feature of flag alias, and it has been opened for about 7 years.
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New to photogrammetry, getting started?
git clone https://github.com/gflags/gflags.git
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Why Do Long Options Start with Two Dashes?
Google's command line flags library, known to the public as absl::Flags and formerly gflags, does not distinguish between --foo and -foo, these are both the flag "foo". Each flag has a unique name so there is never a short -f equivalent to --foo, and -foo can never mean -f -o -o.
The main design motivation of absl::Flags is that the flag definitions can appear in any module, not just main. Go inherits this. A quirk that Go did not inherit is gflags --nofoo alternate form of --foo=false.
This is all documented at https://gflags.github.io/gflags/#commandline, which is pretty much a literal export of the flags package documentation that a Google engineer would see internally.
jarro2783/cxxopts
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Command line interface library
The most feature-rich C++ CLI library is CLI11. Other popular choices include Boost.ProgramOptions, argparse, cxxopts and others.
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Recommended Argument Parsing Library?
I've used cxxopts and can't complain. It's available on both Conan and vcpkg.
- Confusion about libraries and project structure
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Quick question about int main(int argc, char **argv)
For streamlined command line option parsing check out a library like cxxopts or similar. There are plenty out there.
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How do you make a command line argument of this format: ./executableName "input = inputFileName; output = outputFileName"
Have a look at cxxopts which is similar to the python getopt functions, It's header only so easy to use (just dump the header in your project). There is also boost::program_options but this requires boost which is big.
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CLI11 is making all the other options libraries look bad, does anyone have a comparison from experience?
I use CLI11 for more complex things, https://github.com/jarro2783/cxxopts for simpler interfaces, and boost.program_options if I have to and have boost anyways as dependency.
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Is there a macro for the output directory on msvc?
Let the user pass the path/filename as an input argument to the program. Your main() function takes arguments from the console, so you could invoke your program as .\my_program --err_log "\path\to\my_errors.log". Of course this again only works if executed from the console - you can however create a desktop shortcut that invokes your program with this argument and you can also configure your IDE to pass this argument when running your program. To make parsing input arguments easier, use a library such as cxxopts
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Command Line Argument That Can Take Multiple Parameters
You probably want the header only library cxxopts.
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How to create my own command using cpp?
To make parsing command line options easier I can recommend the cxxopts library.
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Dumb question: what data structure do you use to represent a collection of config values passed in via command line arguments/
I have previously used this: https://github.com/jarro2783/cxxopts
What are some alternatives?
Boost.Program_options - Boost.org program_options module
CLI11 - CLI11 is a command line parser for C++11 and beyond that provides a rich feature set with a simple and intuitive interface.
args - A simple header-only C++ argument parser library. Supposed to be flexible and powerful, and attempts to be compatible with the functionality of the Python standard argparse library (though not necessarily the API).
clipp - easy to use, powerful & expressive command line argument parsing for modern C++ / single header / usage & doc generation
conan - Conan - The open-source C and C++ package manager
Vcpkg - C++ Library Manager for Windows, Linux, and MacOS
termbox - Library for writing text-based user interfaces
docopt.cpp - C++11 port of docopt