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un_pogaz · 08-15-2022, 06:23 AM

substr() could be useful.

Here are some rules to color the ISBN as you want.
Maybe it's possible to make a not "advanced" versions of the rules, but in the meantime, this will do.

begins with 978 (ISBN-10 format 13)

Code:

program: test(strlen($#isbn)>10, cmp(substr($#isbn, 0, 3), 979, '', '#0af', ''), '')

begins with 979 (ISBN-13)

Code:

program: test(strlen($#isbn)>10, cmp(substr($#isbn, 0, 3), 978, '', '#f00', ''), '')

other isbn (ISBN-10 old format)

Code:

program: test($#isbn, '#5a7', '')

Note: important to put the rule "other isbn" after the others, otherwise all ISBN will be green.

08-15-2022, 06:23 AM	#2
un_pogaz Chalut o/ Posts: 439 Karma: 145424 Join Date: Dec 2017 Device: Kobo	substr() could be useful. Here are some rules to color the ISBN as you want. Maybe it's possible to make a not "advanced" versions of the rules, but in the meantime, this will do. begins with 978 (ISBN-10 format 13) Code: program: test(strlen($#isbn)>10, cmp(substr($#isbn, 0, 3), 979, '', '#0af', ''), '') begins with 979 (ISBN-13) Code: program: test(strlen($#isbn)>10, cmp(substr($#isbn, 0, 3), 978, '', '#f00', ''), '') other isbn (ISBN-10 old format) Code: program: test($#isbn, '#5a7', '') Note: important to put the rule "other isbn" after the others, otherwise all ISBN will be green. Last edited by un_pogaz; 08-15-2022 at 04:39 PM.