def num.edig.us
import emerging-eztoml@0.9.0.0/main.bend as EmergingEztomlimport Base
1609# an underscore in an exponent
1610def num.edig.us(us: Bool, st: Num, _c: Char) -> Num:
1611 match us:
1612 case True{}:
1613 num.us(st)
1614 case False{}:
1615 num.bad(st, "invalid exponent")