argcv

A simple option parse library.

Basic usage:

#include <stdio.h>
#include <stdbool.h>
#include "argcv.h"

int main(int argc, char* argv[]) {
    int myInt = 0;
    float myFloat = 0.0f;
    const char* myString = NULL;
    bool myBool = false;
    bool showHelp = false;
    bool showVersion = false;

    argcv_init(argc, argv);

    argcv_add_option("-i", "--int", ARGCV_INT, &myInt, "An integer option");
    argcv_add_option("-f", "--float", ARGCV_FLOAT, &myFloat, "A floating-point option");
    argcv_add_option("-s", "--string", ARGCV_STRING, &myString, "A string option");
    argcv_add_option("-b", "--bool", ARGCV_BOOL, &myBool, "A boolean option");
    argcv_add_option("-h", "--help", ARGCV_BOOL, &showHelp, "show help info");
    argcv_add_option("-v", "--version", ARGCV_BOOL, &showVersion, "show version info");

    argcv_parse();

    if (showHelp) {
        argcv_print_usage();
        goto end;
    }
    if (showVersion) {
        printf("argcv version: 1.0.0\n");
        goto end;
    }
    // Your code here to use the parsed options
    printf("myInt: %d\n", myInt);
    printf("myFloat: %f\n", myFloat);
    printf("myString: %s\n", myString ? myString : "NULL");
    printf("myBool: %s\n", myBool ? "true" : "false");
end:
    argcv_destroy();
    return 0;
}

Compile and test:

make
./test -i 42 -f 3.14 -s "Hello, World!" -b

Check help info:

$ ./test --help
./test Usage:
  -i, --int: An integer option
  -f, --float: A floating-point option
  -s, --string: A string option
  -b, --bool: A boolean option
  -h, --help: show help info
  -v, --version: show version info

Note:

ARGCV_BOOL this type means option has no value.

./test -b

ARGCV_INT / ARGCV_FLOAT / ARGCV_STRING must have a value.

./test -i 123

-i/-f/-s/-b are just examples. You can use any char.