4th: 4th (The friendly Forth compiler/interpreter)
4th:
4th: It detects virtually every error and reports what and where
4th: they occur, but is still fast and compact.
4th:
4th: https://thebeez.home.xs4all.nl/4tH/4thfaces.html
4th:
4th: Licence: GNU LGPL V3
4th:
4th:
4th: