Commit 8f4f47df7c42294c06d6bd4f2d0e1b35c4040eb5

Garret Rieger 2021-08-25T13:34:05

[subset] use inverted set for all unicodes. Modify the code that handles input->unicodes to be safe with possibly inverted sets. Also adds --unicodes-= and --unicodes+= flags.