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/**
* silly simple example program
*/
#include "cli.h"
long distance;
unsigned long time;
long speed;
bool murica;
int calc_speed(const struct cli_ctx *ctx)
{
if (time == 0) {
fprintf(stderr, "time cannot be zero\n");
return CLI_RC_BAD_ARGS;
}
double speed = (double)distance / ((double)time / 3600);
printf("%lf%s\n", speed, murica ? "mph" : "km/h");
return CLI_RC_OK;
}
int calc_distance(const struct cli_ctx *ctx)
{
double distance = speed * ((double)time / 3600);
printf("%lf%s\n", distance, murica ? "miles" : "km");
return CLI_RC_OK;
}
const struct cli_opt speed_opts[] = {
{
.type = CLI_OT_INT,
.shor = 'd',
.lon = "distance",
.desc = "the distance (km/miles)",
.value.i = &distance,
},
{
.type = CLI_OT_UINT,
.shor = 't',
.lon = "time",
.desc = "the time (seconds)",
.value.u = &time,
},
{0},
};
const struct cli_opt distance_opts[] = {
{
.type = CLI_OT_INT,
.shor = 's',
.lon = "speed",
.desc = "the speed ((km/miles)ph)",
.value.i = &speed,
},
{
.type = CLI_OT_UINT,
.shor = 't',
.lon = "time",
.desc = "the time (seconds)",
.value.u = &time,
},
{0},
};
const struct cli_cmd my_cmds[] = {
{
.name = "speed",
.desc = "calculate speed",
.help =
"Tell me the distance and the time, and I'll tell you your speed",
.opts = speed_opts,
.func = calc_speed,
},
{
.name = "distance",
.desc = "calculate distance",
.help =
"Tell me the speed and the time, and I'll tell you your distance",
.opts = distance_opts,
.func = calc_distance,
},
{0},
};
struct cli_opt global_opts[] = {
{
.type = CLI_OT_FLAG,
.shor = 'M',
.lon = "murica",
.desc = "Use American™ measurements",
.value.f = &murica,
},
{0},
};
struct cli my_cli = {
.header = "This is an example CLI program",
.footer = "\nCopyright (c) 2025 Yaroslav de la Peña Smirnov "
"<yps@yaroslavps.com>",
.cmds = my_cmds,
.opts = global_opts,
};
int main(int argc, char *argv[])
{
return cli_run(&my_cli, argc, argv);
}
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