Viet Nguyen

This looks like a good idea since GCC supports it as is. I'll take a look at implementation, maybe this weekend. Some notable behavior cases with GCC: - `gcc test.c...

Looks like that last hypothesis regarding `-std=*` options being individually enumerated options rather than an argument-receiving one is correct: https://github.com/gcc-mirror/gcc/blob/48bbcd968d172c4e59d874c5fd831bcbf54cd221/gcc/c-family/c.opt#L1937-L2101

Would the idea be that you can configure the parser just prior to parsing to either parse for short option groups or ignore short option groups and treat multi-character options...

Merging with #23.

Actually reopening this after https://github.com/vietjtnguyen/argagg/issues/23#issuecomment-458465334

The intention behind this feature is for command line interfaces like `find` where the operators have to be parsed in order to build an expression tree (e.g. `find . \(...

Did you give executable permissions to the Python script `label-toolbox.py`? it's mentioned in the Installation section of the README.

I think a good fix is to delete the copy constructor for the `Os::File` object since this is a RIAA resource owning object and the underlying resource can't be copied....