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args = commandArgs(TRUE);
args.options = list();
temp.option.key = NULL;
for (arg in args) {
# Optional arguments declaration
if (substring(arg, 1, 1) == '-') {
temp.option.key = substring(arg, 2);
if (substring(arg, 2, 2) == '-') {
temp.option.key = substring(arg, 3);
}
args.options[[temp.option.key]] = TRUE;
}
# Optional arguments value
else if (!is.null(temp.option.key)) {
args.options[[temp.option.key]] = arg;
temp.option.key = NULL;
}
}