ANS Labelling

The Forth Foundation Library is written in ANS-standard forth. But it requires some extensions. All those extensions are listed in one config source file which is forth engine specific. One exception is the word: include filename. This word is used to include all modules. This is not a big problem, because this word is quite common in forth engines.

FFL is labelled as follows in accordance with the ANS standard:

• ANS Forth Program with Environmental Dependencies.
• Requiring names from the Core Extensions word set.
• Requiring the Double-Number word set.
• Requiring names from the Double-Number Extensions word set.
• Requiring the Exception word set.
• Requiring the Facility word set.
• Requiring names from the Facility Extensions word set.
• Requiring the File Access word set.
• Requiring names from the File Access Extensions word set.
• Requiring (optional) the Floating-Point word set.
• Requiring (optional) names from the Floating-Point Extensions word set.
• Requiring the Memory-Allocation word set.
• Requiring the Programming-Tools word set.
• Requiring names from the Programming-Tools Extensions word set.
• Requiring the String word set.