def b64.go

emerging-ezhttp@0.21.0.0 · src/b64.bend:63

import Base

63# octets to Base64, three at a time (RFC 4648 §4)
64def b64.go(bs: List<&2, U32>, phase: Phase) -> String:
65  match bs:
66    case []:
67      b64.end(phase)
68    case h <> t:
69      match phase:
70        case Need3{}:
71          b64.go(t, Need2{h})
72        case Need2{first}:
73          b64.go(t, Need1{first, h})
74        case Need1{first, second}:
75          b64.quad(first, second, h, 0n) ++ b64.go(t, Need3{})