Lutz,
Does the interpreter do any caching of parsed regular expressions (to avoid having to reparse each string)? If not, could you give us access to a function that would let us store a compiled regex for repeated use? You could even hide the implementation in a built-in foop context :).
Jeff
Yes, since version 7.2 (Oct 2003) newLISP does cache the last compiled regex pattern, so on repeated use the same pattern gets parsed and compiled only once.
Lutz