ISBN Package improvements

hi list, I just updated my draft ISBN package. next to an extensive code-review since my first mail to the list I talked a lot with the maintainers of validate_ISPN and other devs about in which category to place the class. For categorisation I tend to put it into Numbers, but I need a little more feedback on this, because I can not decide it right away: Validate_ISBN: NO, ISBN is not about validation only AND validate base class is php4 and Validate_ISPN validates ISBN already and ... and ... and ... . Structures_ISBN: NO, ISBN is not a complex structure Numbers_ISBN: finally ended up here PEPR: http://pear.php.net/pepr/pepr-proposal-show.php?id=469 Browseable Documentation and highlighted Sourcecode as well als .TGZs and stuff: http://isbn.lastflood.com/ I'll call for votes now. Tom