Newest functions Upload a function Leave a tip My account

There are 2,572 functions in this library.

EANofISBN ( pool ; ISBNnr )

Generate the EAN barcode for the given ISBN#

  Average rating: 4.3 (32 votes) Log in to vote

Reinder Wolting ABECON http://www.abecon.nl

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

/* http://www.export911.com/e911/coding/eanParity.htm */ Let ( [ xPool = Filter ( pool ; "0123456789" ) ; xISBN = Left ( Filter ( ISBNnr ; "0123456789" ) ; 9 ) ; xTotal = xPool & xISBN ; xEven = 3 * ( Middle ( xTotal ; 2 ; 1 ) + Middle ( xTotal ; 4 ; 1 ) + Middle ( xTotal ; 6 ; 1 ) + Middle ( xTotal ; 8 ; 1 ) + Middle ( xTotal ; 10 ; 1 ) + Middle ( xTotal ; 12 ; 1 ) ) ; xOdd = Middle ( xTotal ; 1 ; 1 ) + Middle ( xTotal ; 3 ; 1 ) + Middle ( xTotal ; 5 ; 1 ) + Middle ( xTotal ; 7 ; 1 ) + Middle ( xTotal ; 9 ; 1 ) + Middle ( xTotal ; 11 ; 1 ) ; xDigit = 10 - Mod ( xEven + xOdd ; 10 ) ]; xPool & xISBN & if ( xDigit = 10 ; 0 ; xDigit ) ) Click to copy

EAN barcodes of books are generated from their ISBN#. This function does that trick. The pool number can differ because of the change in ISBN number from 10 to 13 digits (see http://www.niso.org/standards/resources/ISBN.html )
To get a correct ISBN number for this function, you can use the ISBN custom function that I posted here too.

 

Comments

Log in to post comments.

 

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

Support this website.

This library has been a free commmunity resource for FileMaker users and developers for 21 years. It receives no funding and has no advertisements. If it has helped you out, I'd really appreciate it if you could contribute whatever you think it's worth: