https://github.com/nkh-lab/prog-arg-manager
c++ program options parser library
https://github.com/nkh-lab/prog-arg-manager
argument-parsing boost cli cpp program-options
Last synced: about 1 year ago
JSON representation
c++ program options parser library
- Host: GitHub
- URL: https://github.com/nkh-lab/prog-arg-manager
- Owner: nkh-lab
- Created: 2021-08-27T09:49:51.000Z (almost 5 years ago)
- Default Branch: master
- Last Pushed: 2021-09-18T06:03:28.000Z (over 4 years ago)
- Last Synced: 2025-01-16T21:39:34.715Z (over 1 year ago)
- Topics: argument-parsing, boost, cli, cpp, program-options
- Language: C++
- Homepage:
- Size: 35.2 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
Utility library for simplifying using of `Boost::program_options` where user can concentrate not on options/arguments configuration but on usage of them.
So, just describe the options and use them after parsing the arguments:
```cpp
int main(int argc, char* argv[])
{
nlab::Option write{"write,w", "write flag"};
nlab::Option file{"file,f", "file path and name"};
if (nlab::ProgArgManager(argc, argv).parse(write, file))
{
// Entry point for user business logic
std::cout << "write: " << write.value << "\n";
std::cout << "file: " << file.value << "\n";
}
return 1;
}
```
## Build Status
[](https://github.com/nkh-lab/prog-arg-manager/actions/workflows/ci.yml)
## Dependencies
* [Boost::program_options](https://github.com/boostorg/program_options)
* [GTest (for unit tests build only)](https://github.com/google/googletest)
## How it works
All options are devided to three categories:
1. Generic: hardcoded `help` and `version` options.
2. Optional: user defined.
3. Mandatory: user defined.
The following diagram shows the arguments handling logic:
## Usage
This project contains a simple example of how to use the library that covers the basic cases of options/arguments usage.
Example source code: [test/component_test/main.cpp](test/component_test/main.cpp)
### How to build example
```
$ mkdir build && cd build
$ cmake -Dprog-arg-manager_BUILD_TESTS=on ..
$ make
```
Executable binary `prog-arg-manager-ctest` is here:
```
$ cd build/test/component_test
```
### How to run example
Run example without all mandatory options or with "-h [ --help ]", help text should be shown:
```
$ ./prog-arg-manager-ctest -h
Allowed options:
Generic:
-h [ --help ] display this help text and exit
-v [ --version ] display version information and exit
Optional:
--num arg to test numeric arguments
-r [ --read ] read flag to test boolean
-w [ --write ] write flag to test boolean
-d [ --delete ] delete flag to test boolean
Mandatory (last option name can be omitted):
-p [ --path ] arg path to test string
-f [ --files ] arg files to test vector
```
Run example with "-v [ --version ]" to show version:
```
$ ./prog-arg-manager-ctest -v
1.0.0
```
Run example with all mandatory options:
```
$ ./prog-arg-manager-ctest --num 789 -rw -p /path/to/my/dir file1.txt file2.txt file3.txt
num: 789
read: 1
write: 1
del: 0
path: /path/to/my/dir
files:
file1.txt
file2.txt
file3.txt
```