Ylex.first_ok: def of cswap-bend-cli@0.1.0.0
Import: import cswap-bend-cli@0.1.0.0/fmt/ylex.bend as Ylex
Lines 151-156 of cswap-bend-cli@0.1.0.0/fmt/ylex.bend: https://jend.leeeet.dev/read.txt?path=cswap-bend-cli@0.1.0.0/fmt/ylex.bend&start_line=151&end_line=156

import Base

def first_ok(s: String) -> Bool:
  match s:
    case SNil{}:
      False{}
    case SCon{Chr{+c}, t}:
      Bool.not(bad_first(c)) && Bool.not(bad_char(c)) && rest_ok(t, c)

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.not
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Char
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=cswap-bend-cli@0.1.0.0/fmt/ylex.bend&name=bad_char
  https://jend.leeeet.dev/definition.txt?path=cswap-bend-cli@0.1.0.0/fmt/ylex.bend&name=bad_first
  https://jend.leeeet.dev/definition.txt?path=cswap-bend-cli@0.1.0.0/fmt/ylex.bend&name=rest_ok