Call Number/Letter Regular Expressions?

[Blake Carver]

I'm wondering if anyone out there has written any regular expressions to 
identify call numbers from a string of letters/numbers. I am looking for a 
set of regular expressions that can identify LC, DDC, ISSN, and the more 
common sets of numbers used in catalogging.

e.g. A user enters TK 421 into a search box, the regular expression figures 
out that is an LC number.
        A user enters 8675-3099 into a search, and the regular expression 
figures out that is an ISSN




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Blake Carver
Web Librarian
The Ohio State University Libraries
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