Limit comma separated values in textarea

Hello all, I have what I believe to be a challenging problem. After a user completes a template entry, they can add metadata to the item. We allow them to enter a comma-separated list of keywords into a textarea.

The problem we have is that the keyword length is limited in the database, lets say to 25 characters. Now, I have a regex to limit the overall length of the textarea:

textarea wrap="virtual" cols="50" rows="3" validation-regex="^[\s\S]{1,1000}$"

but what I need to do is check each individual entry for length. Any ideas on how this might be done (via regex)?

Thanks, in advance, for your responses.

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Comments

JonathonG

How about:

validation-regex="^(.{1,25},)+.{1,25}$"

I'm pretty sure this will do what you want, but others may have other thoughts as well.

jbonifaci

This should only let the user enter 25 characters between each comma:

^([^,]{1,25}(,|$))*$

~Jeff

Michael_Mc_OFI

I'll give each of those a go, and post the results. Again, thanks so much!

JonathonG

Just a couple of brief distinctions. jbonifaci's regex will allow the string to end in a comma, mine won't. Also, mine will allow a user to enter ",," and Jeff's won't. So, which one you use probably depends on your requirements.