# "FileSet define" and "Text Replace"

**URL:** https://www.finalbuilder.com/forums/t/fileset-define-and-text-replace/7346
**Category:** Bugs
**Created:** [May 11, 2023, 11:34am UTC](https://www.finalbuilder.com/forums/t/fileset-define-and-text-replace/7346 "2023-05-11T11:34:06Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![pfennig59](https://www.finalbuilder.com/forums/letter_avatar_proxy/v4/letter/p/e56c9b/32.png) [@pfennig59](https://www.finalbuilder.com/forums/u/pfennig59)
#### Post date: [May 11, 2023, 11:34am UTC](https://www.finalbuilder.com/forums/t/fileset-define-and-text-replace/7346/1 "2023-05-11T11:34:06Z")

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Trying to difine a FileSet with search string  
\_\_(‘ab DiaShow / Stages %s und Photo Vision / Video Vision %s’, ‘10’, ‘13’)  
results in  
Error expanding FilterContains, Search Text : [Expression Error]: Expected . or % but got " ". [('ab DiaShow / Stages %s‸ und Photo Vision / Video]

There seems to be an option missing to make the function take each character literally.

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### Author: ![Vincent](https://www.finalbuilder.com/forums/user_avatar/www.finalbuilder.com/vincent/32/938_2.png) [@Vincent](https://www.finalbuilder.com/forums/u/Vincent)
#### Post date: [May 11, 2023, 1:22pm UTC](https://www.finalbuilder.com/forums/t/fileset-define-and-text-replace/7346/2 "2023-05-11T13:22:52Z")

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% characters are special in FinalBuilder, to use them literally in a field which might expand variable references, you need to escape them

[https://wiki.finalbuilder.com/display/FB8/Using+Variables](https://wiki.finalbuilder.com/display/FB8/Using+Variables)

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### Author: ![pfennig59](https://www.finalbuilder.com/forums/letter_avatar_proxy/v4/letter/p/e56c9b/32.png) [@pfennig59](https://www.finalbuilder.com/forums/u/pfennig59)
#### Post date: [May 12, 2023, 6:15am UTC](https://www.finalbuilder.com/forums/t/fileset-define-and-text-replace/7346/3 "2023-05-12T06:15:03Z")

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Thanks for your quick response.

I had already tried escaping, but using a \ instead of a %.  
Now it’s working. Thanks again 🙂