void UsageImp::fetchArguments(UsageLine &ul, int a, int b, int &argc,
char *argv[]) {
assert(0 <= a && a <= b && b < ul.getCount());
int i;
for (i = a; i <= b; i++) {
if (ul[i] == &bra || ul[i]->isMultiArgument()) break;
if (ul[i]->isArgument()) {
Argument *argument = dynamic_cast<Argument *>(ul[i]);
assert(argument);
argument->fetch(1, argc, argv);
argument->select();
}
}
if (i > b) {
} else if (ul[i] == &bra) {
int n = 0;
int j;
for (j = b; j > i && ul[j] != &ket; j--)
if (ul[j]->isArgument()) n++;
assert(j > i + 1);
if (argc - 1 > n) fetchArguments(ul, i + 1, j - 1, argc, argv);
if (j + 1 <= b) fetchArguments(ul, j + 1, b, argc, argv);
} else if (ul[i]->isMultiArgument()) {
MultiArgument *argument = dynamic_cast<MultiArgument *>(ul[i]);
assert(argument);
int n = 0;
for (int j = i + 1; j <= b; j++)
if (ul[j]->isArgument()) n++;
int oldArgc = argc;
argc -= n;
argument->fetch(1, argc, argv);
argument->select();
argc += n;
if (n > 0) {
if (argc < oldArgc)
for (int j = n; j > 0; j--) argv[argc - j] = argv[oldArgc - j];
fetchArguments(ul, i + 1, b, argc, argv);
}
}
}
