regexp replace?

I'd like to create a function that will take strings
like:

abcdef 'quote1' "quote2" / xyz etc.

and return:

abcdef-quote1-quote2-xyz-etc.

Basically remove all characters that aren't
[A-Za-z0-9], -, or ., and replace all spaces with
hyphens. Possible? The only string function that
supports regular expressions is substring and I
couldn't make that do what I want.

TIA,
CSN




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