Create a text field with your question as its title. Then under Parameters > Validation set "Authorized input" to "Custom PERL regular expression". Then for "Perl Regular Expression" specify your REGEXP to validate the question answer. Example as follows.
Title: What is ( 1 + 1 ) * 2?
Perl Regular Expression: /^4$/
In short you'd just use /^ANSWER_HERE$/, but the answer needs to be regex safe (e.g. escape periods, etc..). See the below for REGEX information.
This is typically easy for bots to complete though once they've learned the question. I highly recommend considering using CB AntiSpam when possible.
Kyle (Krileon) Community Builder Team Member Before posting on forums:
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krileon wrote: Create a text field with your question as its title. Then under Parameters > Validation set "Authorized input" to "Custom PERL regular expression". Then for "Perl Regular Expression" specify your REGEXP to validate the question answer. Example as follows.
Title: What is ( 1 + 1 ) * 2?
Perl Regular Expression: /^4$/
In short you'd just use /^ANSWER_HERE$/, but the answer needs to be regex safe (e.g. escape periods, etc..). See the below for REGEX information.
krileon
