How to write a regular expression so that it’s case sensitive and only looks at ABC and not Abc or abc?

[abhijit_mhatre]

Please let me know the regex for this.
How can the extracted field be modified?

Thanks

[gokadroid · Accepted solution]

How about trying this:

(ABC) which matches ABC as a string and does not match Abc or abc see here

[ABC] on the other hand will match either A, B or C see here

[ABC]+ will match any combinations of one or more ABCs like AABBCC, ABC, Abc (A is matched in Abc ) and so on... see here

So please use accordingly.

[clara-fication]

[ABC] should only look at ABC and not Abc or abc. However, :upper and :lower can be used, and i makes things case insensitive.

you can test regexes here: https://regex101.com/