[Tcllib-devel] FYI new things ...

[Andreas K. <and...@ac...>]

Just an FYI about new things I added a few weeks ago:

	modules/valtype

A few validation types for various numbers, i.e. special snit classes which 
take a value and throw an error if it isn't valid.

The classes in valtype are a bit extended, they not only have the typemethod 
'valid', but also a typemethod 'checkdigit' which can calculate the checkdigit 
for an incomplete value.

We have validation for

	ean13, isbn, imei, usnpi
	amex, visa, discover, mastercard
	luhn, luhn5, verhoeff

The last 3 are general checksum algorithms. All the creditcards are based on 
luhn, for example.

-- 
Andreas Kupries
Senior Tcl Developer
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