forth.f

[ s11 print printeol ] bind: print-top

[ label: .loop
  call_stack.len pushe: 0 == goto-if: .end
  call_stack.pop s11 memory.get
  s21 pushe: 1 + call_stack.push
  s11 is-primitive push: call-primitive push: call_stack.push if-else
  goto: .loop
  label: .end ] bind: main-loop

[ call_stack.pop s2 ] bind: return

[ is-input-end push: read-stdin if next-char
  s11 is-whitespace ] bind: next-char-is-space
[ push: None
  label: .space-loop s2 next-char-is-space goto-if: .space-loop
  strings.len s21 pushe: 0 strings.append
  label: .word-loop strings.append next-char-is-space not goto-if: .word-loop
  s2 s11 s11 strings.len s21 - pushe: 1 - s21 strings.set_at
] bind: next-input

[ names.keys.index names.values.get ] bind: names.get
[ names.keys.len ] bind: names.len
[ names.keys.append names.values.append ] bind: names.set
[ names.len
  label: .loop
  pushe: 1 - s1212 names.keys.get strings.address
  string_equal goto-if: .found
  s11 goto-if: .loop
  s2 push: None
  label: .found s21 s2 ] bind: names.keys.index

[ memory.len
  label: .loop
  next-input s11 equal-right-bracket goto-if: .end
  strings.address names.get memory.append
  goto: .loop
  label: .end
  s2 push: return-index memory.append
] bind: [

[ label: .loop
  next-input strings.address names.get pushe: 0 memory.set_at
  pushe: 0 call_stack.push main-loop
  goto: .loop ] bind: input-loop

[ setup input-loop exit ] bind: _start