def lead.low
import emerging-ezhttp@0.21.0.0/src/qs.bend as Qsimport Base
191# 80 to C1 (continuation bytes, overlong two-byte leads), else C2 and up
192def lead.low(+b: U32, lt: Bool) -> Lead:
193 match lt:
194 case True{}:
195 Bad{}
196 case False{}:
197 lead.two(b, U32.is_lt(b, 224))