take a look at this thread for some high performance strip-non-numeric functions.
you would need to change it so that it also allows dashes, but that's a trivial tweak:
do you have a StripNonNumeric ITVF function?
i've taken that and made versions for Non-Alphanumeric,Non-AlphaBetical,and some similar custom versions to allow certain punctuation.
Lowell
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