def utf8.cont

mylsm-lsm-store@0.6.0.1 · src/StorageBytes.bend:28

import Base

28def utf8.cont(+need: U32, cp: U32, +out: String, ok: Bool, in_range: Bool, byte: U32) -> Utf8State:
29  match in_range:
30    case True{}:
31      +next_cp = (cp * 64 + U32.and(byte, 63) : U32)
32      Utf8State{(need - 1 : U32), 128, 191, next_cp,
33        Bool.pick(String, U32.is_eq(need, 1), SCon{Chr{next_cp}, out}, out), ok}
34    case False{}:
35      Utf8State{0, 128, 191, 0, out, False{}}