MobileRead Forums - View Single Post - Using RE to extract pattern from custom column into another custom column

activedirectory · 12-15-2019, 02:17 PM

This is a really basic question so thanks for being patient.

I have a custom column from the Overdrive plugin (thanks jhowell!) that shows the waiting time for my holds: for example a row would look like:

05H@library1, 08@library2, 09@library3

I am trying to create another custom that just shows that I have a hold on this book e.g. H@library1 (the re pattern would be like like H@[a-z1-9]+)

I've used regular expression but I don't know how to reference the custom columns... and I was a bit confused by the help files.

12-15-2019, 02:17 PM	#1
activedirectory Member Posts: 15 Karma: 10 Join Date: Dec 2019 Device: none	Using RE to extract pattern from custom column into another custom column This is a really basic question so thanks for being patient. I have a custom column from the Overdrive plugin (thanks jhowell!) that shows the waiting time for my holds: for example a row would look like: 05H@library1, 08@library2, 09@library3 I am trying to create another custom that just shows that I have a hold on this book e.g. H@library1 (the re pattern would be like like H@[a-z1-9]+) I've used regular expression but I don't know how to reference the custom columns... and I was a bit confused by the help files.