Open Source Forth Business Software

4tH is a Forth compiler with a little difference. Instead of the standard Forth engine it features a conventional compiler. 4tH is a very small compiler that can create bytecode, C-embeddable bytecode, standalone executables, but also works fine as a scripting language. It supports about 95% of the ANS Forth CORE wordset and features conditional compilation, pipes, files, assertions, forward declarations, enumerations, structures, suspended execution, recursion, include files, etc. It comes with an RPN calculator, BASIC interpreter, line editor, preprocessor, compiler, decompiler, C-source generator, a virtual machine, and a multitasking environment.

An English, German, Japanese, Portuguese, Russian, Chinese, Hindi & Bengali desktop OS loading from miniCD or USB key with applications and personal config files on floppy or USB key.

Source code for a forth program under DOS to generate an estimate for an electrical contractor. It could be adapted for other types of contractors.