Simple implementation of command line argument parsing. There are two kinds of flags, with and without arguments. Each flag can have a short and long name. You can (should) also assign a default option when the program is invoked without flags. The meaning of this library is simplicity and clarity.
To use it, you need to include a header file and add an object file to the linker. Next, need to declare the necessary variables and describe the structure with options.
/* for arguments */
int a_a;
int a_b;
int a_c;
int a_d;
int a_e;
int a_f;
int a_h;
const char *v_d[AGP_MAX_ARG];
const char *v_e[AGP_MAX_ARG];
const char *v_f[AGP_MAX_ARG];
/* options description */
t_agp_options argopt[] = {
/* flag-short flag-long exist-var var description */
AGP_INFO("Usage:"),
AGP_INFO(""),
AGP_INFO("Options without arguments:"),
AGP_BOOL(a, bool-a, &a_a, "bool (a)"),
AGP_BOOL(b, -, &a_b, "bool (b)"),
AGP_BOOL(-, bool-c, &a_c, "bool (c)"),
AGP_INFO("Options with arguments:"),
AGP_STR(d, str-d, &a_d, v_d, "strings (d)"),
AGP_STR(e, -, &a_e, v_e, "strings (e)"),
AGP_STR(-, str-f, &a_f, v_f, "strings (f)"),
AGP_INFO("Default argument:"),
AGP_DEF(-, -, &a_d, v_d, "default (d)"),
AGP_INFO("For help:"),
AGP_BOOL(h, help, &a_h, "print help (h)"),
AGP_END(),
};And(Returns zero on success and one on error).
int ret = agp_parse(argopt, argc, argv);Check all variables a_* in a loop. If the flag was set, then their value is non-zero and in options with string arguments, variables v_* contain references to the passed arguments.
Source of inspiration: cofyc/argparse