UPC, EAN, or ISBN

[WolfShade]

Hello, all.

Does anyone know of a CFC that can take a string and return whether that string is a UPC, an EAN, or an ISBN?

I'm working on a site that adds items to a seller's half.com account (for many sellers) and the product ID that is being supplied could be a UPC, an EAN, or an ISBN (both -10 and -13), and I need to be able to tell half.com which the product ID is.Thanks,^_^

[-__cfSearching__-]

UPC, an EAN, or an ISBN (both -10 and -13)

Have you checked cflib.org? I know they have a function for ISBN at least. Also, what type of UPC?

[Daverms]

To expand -==cfSearching==-'s suggestion,

For ISBN,

http://cflib.org/udf/IsISBN

For UPC,

http://cflib.org/index.cfm?event=page.udfbyid&udfid=661

Unfortunately there is no library avaiable for EAN (in CFLIB)., but I hope you can follow the ISBN code from where you can build another library for EAN.

[-__cfSearching__-]

Unfortunately there is no library avaiable for EAN (in

CFLIB)., but I hope you can follow the ISBN code from where

you can build another library for EAN.

That would be a good addition. But what formats of EAN? There is some overlap between the types you listed. I am not sure you could differentiate between some of them. Not unless the values are formatted. Or perhaps use different check digit calculations.

[WolfShade]

cflib.org (which I love) has a script for ISBN-10 that just checks to see if it is a valid ISBN-10; not much for UPC, there, and nothing for EAN.

[-__cfSearching__-]

At a high level, you could probably determine if a string might be UPC-A, ISBN-10 OR EAN/ISBN-13. IIRC, all of the codes are numeric only. So a simple regex, plus a check digit verification could probably tell you that.

http://en.wikipedia.org/wiki/International_Standard_Book_Number

But again, I am not so sure you can definitively differentiate the value type, using just an un-formatted string of numbers. You might check around for other libraries (even if they are not in CF). That would give you an idea if it is feasible and/or if there is something you could adapt.

-Leigh

[Daverms]

WolfShade,

I came across this webservice named "GetISBNInformation", through which you can perform the ISBN (or) EAN lookups.

As for UPC,

You can make use of this UDF,

http://cflib.org/index.cfm?event=page.udfbyid&udfid=661

HTH

[-__cfSearching__-]

@Daverms

Did you mean to post a url for the webservice?

-Leigh

[Daverms]

Oops.. Sorry,

Here is the URL,

http://www.webservicex.net/isbn.asmx