Regex.esc: def of bend-kit-regex@0.8.0.0
Import: import bend-kit-regex@0.8.0.0/regex.bend as Regex
Lines 117-157 of bend-kit-regex@0.8.0.0/regex.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-regex@0.8.0.0/regex.bend&start_line=117&end_line=157

import Base

# The text after a backslash.
def esc(s: String) -> Esc:
  match s:
    case SNil{}:
      EBad{}
    case SCon{'d', t}:
      EItems{perl.d(), t}
    case SCon{'D', t}:
      EItems{perl.D(), t}
    case SCon{'w', t}:
      EItems{perl.w(), t}
    case SCon{'W', t}:
      EItems{perl.W(), t}
    case SCon{'s', t}:
      EItems{perl.s(), t}
    case SCon{'S', t}:
      EItems{perl.S(), t}
    case SCon{'p', t}:
      prop(False{}, t)
    case SCon{'P', t}:
      prop(True{}, t)
    case SCon{'A', t}:
      EAssert{0, t}
    case SCon{'z', t}:
      EAssert{1, t}
    case SCon{'b', t}:
      EAssert{2, t}
    case SCon{'B', t}:
      EAssert{3, t}
    case SCon{'n', t}:
      EPoint{10, t}
    case SCon{'t', t}:
      EPoint{9, t}
    case SCon{'r', t}:
      EPoint{13, t}
    case SCon{'f', t}:
      EPoint{12, t}
    case SCon{'v', t}:
      EPoint{11, t}
    case SCon{Chr{+c}, t}:
      esc.other(is_alnum(c), c, t)

Uses (16):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  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=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Word.Con
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Word.Nil
  https://jend.leeeet.dev/definition.txt?path=bend-kit-regex@0.8.0.0/regex.bend&name=Esc
  https://jend.leeeet.dev/definition.txt?path=bend-kit-regex@0.8.0.0/regex.bend&name=esc.other
  https://jend.leeeet.dev/definition.txt?path=bend-kit-regex@0.8.0.0/regex.bend&name=is_alnum
  https://jend.leeeet.dev/definition.txt?path=bend-kit-regex@0.8.0.0/regex.bend&name=perl.D
  https://jend.leeeet.dev/definition.txt?path=bend-kit-regex@0.8.0.0/regex.bend&name=perl.S
  https://jend.leeeet.dev/definition.txt?path=bend-kit-regex@0.8.0.0/regex.bend&name=perl.W
  https://jend.leeeet.dev/definition.txt?path=bend-kit-regex@0.8.0.0/regex.bend&name=perl.d
  https://jend.leeeet.dev/definition.txt?path=bend-kit-regex@0.8.0.0/regex.bend&name=perl.s
  https://jend.leeeet.dev/definition.txt?path=bend-kit-regex@0.8.0.0/regex.bend&name=perl.w
  https://jend.leeeet.dev/definition.txt?path=bend-kit-regex@0.8.0.0/regex.bend&name=prop