Fabian Homborg 7ea8e20623 argparse: Make short flag names optional (#7585) ...

It was always a bit ridiculous that argparse required `X-longflag` if
that "X" short flag was never actually used anywhere.

Since the short letter is for getopt's benefit, we can hack around
this with our old friend: Unicode Private Use Areas.

We have a counter, starting at 0xE000 and going to 0xF8FF, that counts
up for all options that don't have a short flag and provides one. This
gives us up to 6400 long-only options.

6.4K should be enough for everybody.

2021-01-01 11:37:25 +01:00

15 KiB

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