RegEx on Google Forms: How to make Case Insensitive work?

Question

I have been wondering, how to use case insensitive regular expression for a response validation in a form where there are different possible answers?

I have tried:
(name1|name2|name3)
and it really works, but I want it to be case insensitive.

Is there an easiest way to make it Case Insensitive?

I did:

[?i(name1|name2|name3)] – it didn't work, and it accepts names that are not in the parenthesis.
[?i](name1|name2|name3) – same as what happened to number 1

Any help would be very much appreciated!

doubleunary · Accepted Answer · 2022-04-10 14:57:47Z

3

Use a non-capturing group to set flags, like this:

(?i)(name1|name2|name3)

See RE2.

answered Apr 10, 2022 at 14:57

doubleunary

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I am trying to use this Google Forms (as is the OP), where this is not a valid regex. Last time asked, there was no case insensitivity support on Google Forms (see support.google.com/docs/thread/46001787/…)
– M.G.Poirot
Sep 4 at 8:57

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Kin · Accepted Answer · 2022-09-06 09:06:21Z

-1

Try using this

[?i]name1|name2|name3|

It worked on mine.

answered Sep 6, 2022 at 9:06

Kin

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Thanks @Kin ^_^
– JDD
Sep 13, 2022 at 4:05
That regex will match iname1, ?name1, name2, name3 and also an empty text string, but it will not match name1, Name1, Name2 or nAME3 as specified in the question. Square brackets [] signify a character class rather than a group.
– doubleunary
Jun 23 at 14:24

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2 Answers 2