def err.plain
import ezsys@0.1.0.0/src/errno.bend as Errnoimport Base
129# any other character: a backslash or the quote escaped, else itself
130def err.plain(+qt: Char, +cp: U32) -> String:
131 err.when(U32.is_eq(cp, 92), _u => "\\\\",
132 _u => err.when(Char.is_eq(Chr{cp}, qt), _v => SCon{'\\', SCon{qt, SNil{}}},
133 _v => SCon{Chr{cp}, SNil{}}))