# regular expressions
**URL:** https://community.mp3tag.de/t/regular-expressions/19272
**Category:** Support
**Created:** [August 25, 2017, 6:28pm UTC](https://community.mp3tag.de/t/regular-expressions/19272 "2017-08-25T18:28:00Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@nico78](https://community.mp3tag.de/u/nico78)
#### Post date: [August 25, 2017, 6:28pm UTC](https://community.mp3tag.de/t/regular-expressions/19272/1 "2017-08-25T18:28:00Z")
How can I make the name of the file that is:
The rolling stones\_\_paint it black.mp3
"\_\_" = "2 spaces"
Stay
THE ROLLING STONES\_\_Paint It Black.mp3
The between the artist and the name of the song is separated by 2 spaces
---
### Author:  [@DetlevD](https://community.mp3tag.de/u/DetlevD)
#### Post date: [August 26, 2017, 5:45am UTC](https://community.mp3tag.de/t/regular-expressions/19272/2 "2017-08-26T05:45:09Z")
> [@nico78](#):
>
> How can I make the name of the file that is:
> The rolling stones\_\_paint it black.mp3 ...
> THE ROLLING STONES\_\_Paint It Black.mp3
> The between the artist and the name of the song is separated by 2 spaces
**$regexp($caps('The rolling stones paint it black'),'^(.+?)(\s\s)(.+?)$','\U$1\E$2$3') $regexp($caps(%\_filename%),'^(.+?)(\s\s)(.+?)$','\U$1\E$2$3') From: 'The rolling stones paint it black' To : 'THE ROLLING STONES Paint It Black'**
DD.20170826.0945.CEST
See also ...
[/t/6900/1](https://community.mp3tag.de/t/6900/1)
[/t/6856/1](https://community.mp3tag.de/t/6856/1)
[/t/6920/1](https://community.mp3tag.de/t/6920/1)
---
### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:26pm UTC](https://community.mp3tag.de/t/regular-expressions/19272/3 "2026-02-09T12:26:58Z")