Hello, I'm really new in the perl-world and asking for some help. I'm using a barcode scanner and inside the scanner is running a perl programm which processes the scanned barcode. I can only set one regex to adjust the scanned code. The result is send to the RS232-port. The host which is connected to the scanner needs a string with a fixed length. SO I want to change the scanned string with a regex to a new string with a fix length (= 13) by adding some extra ZERO's example: barcode: 1234567890123 -> 1234567890123 (-> do nothing) barcode: 123456789 -> 1234567890000 (-> adding 4 zero's) option: barcode: 123456789012345 -> maximum the first 13 characters. Thanks to all who's willing to help me. grtz, Bart.

In reply to How to convert a string with regex to a string with a fixed length? by Anonymous Monk

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