def unicode.put
import emerging-ezjson@1.3.0.0/src/lex.bend as Leximport Base
164def unicode.put(left: Nat, acc: U32, dig: U32, buf: List<&2, Char>, toks: List<&2, Tok>) -> Lex:
165 match left:
166 case 0n:
167 unicode.end((acc * 16 + dig : U32), buf, toks)
168 case 1n+p:
169 Lex{Uni{p, (acc * 16 + dig : U32)}, buf, toks}