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#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#define flag_init main
int argument_count;
char **arguments;
int docstring_count;
char **docstrings;
int flag_fail;
int flag_int(const char *flag_name, int default_value, const char *docstring) {
int flag_name_length = strlen(flag_name);
int docstring_length = strlen(docstring);
char *new_docstring = malloc(flag_name_length + 4 + docstring_length);
new_docstring[0] = '\t';
memcpy(new_docstring + 1, flag_name, flag_name_length);
new_docstring[flag_name_length + 1] = ' ';
memcpy(new_docstring + flag_name_length + 2, docstring, docstring_length);
new_docstring[flag_name_length + 3 + docstring_length] = '\0';
docstrings[docstring_count] = new_docstring;
docstring_count++;
for (int i = 0; i < argument_count; i++) {
if (strcmp(arguments[i], flag_name) == 0) {
if (i + 1 < argument_count) {
return atoi(arguments[i + 1]);
} else {
flag_fail = 1;
}
}
}
if (flag_fail) {
printf("Usage: %s [flags]\n", arguments[0]);
puts("Available flags:");
for (int j = 0; j < docstring_count; j++) {
printf("%s\n", docstrings[j]);
}
exit(1);
return 0;
} else {
return default_value;
}
}
int main_func();
int flag_init(int argc, char **argv) {
argument_count = argc;
arguments = argv;
flag_fail = 0;
docstring_count = 0;
docstrings = malloc(argc * sizeof(char *));
main_func(argc, argv);
}
#define main main_func
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