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basic.c
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basic.c
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/*
INPUT:
./binary --file=rom.bin --width=160 --height=144 --fullscreen=true --scale=2.0
OUTPUT:
key: file value: rom.bin
key: width value: 160
key: height value: 144
key: fullscreen value: 1
key: scale value: 2.0
*/
#include "../args.h"
#include <stdio.h>
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
enum ArgID {
ArgID_HELP,
ArgID_VERSION,
ArgID_FILE,
ArgID_FULLSCREEN,
ArgID_WIDTH,
ArgID_HEIGHT,
ArgID_SCALE,
};
int main(int argc, char** argv) {
if (!argc) {
printf("no args!\n");
return 0;
}
const struct ArgsMeta metas[] = {
{
.key = "help",
.id = ArgID_HELP,
.type = ArgsValueType_NONE,
.single = 'h'
},
{
.key = "version",
.id = ArgID_VERSION,
.type = ArgsValueType_NONE,
.single = 'v'
},
{
.key = "file",
.id = ArgID_FILE,
.type = ArgsValueType_STR,
.single = 'f'
},
{
.key = "fullscreen",
.id = ArgID_FULLSCREEN,
.type = ArgsValueType_BOOL,
.single = 0
},
{
.key = "width",
.id = ArgID_WIDTH,
.type = ArgsValueType_INT,
.single = 0
},
{
.key = "height",
.id = ArgID_HEIGHT,
.type = ArgsValueType_INT,
.single = 0
},
{
.key = "scale",
.id = ArgID_SCALE,
.type = ArgsValueType_DOUBLE,
.single = 0
},
};
struct Argsdata data[ARRAY_SIZE(metas)] = {0};
unsigned data_count = {0};
const enum ArgsResult result = args_parse(
1, argc, argv,
metas, ARRAY_SIZE(metas),
data, &data_count
);
switch (result) {
case ArgsResult_UNWANTED_VALUE:
case ArgsResult_BAD_VALUE:
case ArgsResult_MISSING_VALUE:
case ArgsResult_ERROR:
printf("Args Error: %d\n", result);
return -1;
case ArgsResult_OK:
case ArgsResult_EXTRA_ARGS:
break;
}
for (unsigned i = 0; i < data_count; ++i) {
switch (data[i].id) {
case ArgID_HELP:
printf("key: %.*sn", data[i].key_len, data[i].key);
break;
case ArgID_VERSION:
printf("key: %.*sn", data[i].key_len, data[i].key);
break;
case ArgID_FILE:
printf("key: %.*s\tvalue: %s\n", data[i].key_len, data[i].key, data[i].value.s);
break;
case ArgID_FULLSCREEN:
printf("key: %.*s\tvalue: %d\n", data[i].key_len, data[i].key, data[i].value.b);
break;
case ArgID_WIDTH:
printf("key: %.*s\tvalue: %lld\n", data[i].key_len, data[i].key, data[i].value.i);
break;
case ArgID_HEIGHT:
printf("key: %.*s\tvalue: %lld\n", data[i].key_len, data[i].key, data[i].value.i);
break;
case ArgID_SCALE:
printf("key: %.*s\tvalue: %.1f\n", data[i].key_len, data[i].key, data[i].value.d);
break;
}
}
return 0;
}