Registration fiel validation: "Invalid regular expression"

4 weeks 2 days ago #313890 by kommid
Hi everyone,
on one of my sites I have many registrations from spam bots. All the registrations have in common, that the last name ends in two capital letters like mugtustintyFY or HerbertImistUM.
Now I try to validate the last name field in my registration form using regex, but Community Bilder complains about my expression not being valid.
Here is the regex string, I try to insert:
^(.*)?+(?<!([A-Z]{2}))$
Could anyone please tell me, what's wrong with my expression?
Best Regards
Markus
4 weeks 2 days ago #313892 by krileon
You need to supply a delimiter. All REGEX you supply must be complete and valid REGEX. Changing it to the below would give you valid REGEX.

/^(.*)?+(?<!([A-Z]{2}))$/


Kyle (Krileon)
Community Builder Team Member
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4 weeks 2 days ago #313893 by kommid
Hello Kyle,
I'm sorry, I forgot to post them along with my expression. I in fact did have the delimiters in the regex field. Just to be sure, I pasted your expression into my field too, but Communiy Builder keeps complaining.
4 weeks 2 days ago #313896 by krileon
Your REGEXP has to be valid in PHP and JS. It's valid in PHP, but it's not valid in JS. JS does not support possessive quantifiers, which you're using in your REGEXP.


Kyle (Krileon)
Community Builder Team Member
Before posting on forums: Read FAQ thoroughly + Read our Documentation + Search the forums
CB links: Documentation - Templates - CBSubs - Hosting - Forge - Incubator - GroupJive
--
If you are a Professional, Developer, or CB Paid Subscriptions subscriber and have a support issue please always post in your respective support forums for best results!
--
If I've missed your support post with a delay of 3 days or greater and are a Professional, Developer, or CBSubs subscriber please send me a private message with your thread and will reply when possible!
--
Please note I am available Monday - Friday from 8:00 AM EST to 4:00 PM EST. I am away on weekends (Saturday and Sunday) and if I've missed your post on or before a weekend after business hours please wait for the next following business day (Monday) and will get to your issue as soon as possible, thank you.
--
My role here is to provide guidance and assistance. I cannot provide custom code for each custom requirement. Please do not inquire me about custom development.
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