juliangruber/brace-expansion — pull request #3 by isaacs (2014-12-01 05:34:39+00:00)
Title: Empty matches

This changes how `""` match is handled to be more bash-like, and makes the tests catch this difference. `""` is a valid top-level match in `{z..A}` ranges, but not in top-level comma option sets like `{a,,,}`.

I'm not in love with the implementation of a boolean that gets passed around, but at least it isn't what gets exposed to users.