def err.hex.or
import ezsys@0.1.0.0/src/errno.bend as Errnoimport Base
106# a digit's character, or '0' past the digits
107def err.hex.or(got: Maybe<&2, Char>) -> Char:
108 match got:
109 case None{}:
110 '0'
111 case Some{chr}:
112 chr