# How Can I Split a String by Capital/Upper Case Letters?
**URL:** https://community.mp3tag.de/t/how-can-i-split-a-string-by-capital-upper-case-letters/17582
**Category:** Support
**Created:** [January 23, 2016, 5:47am UTC](https://community.mp3tag.de/t/how-can-i-split-a-string-by-capital-upper-case-letters/17582 "2016-01-23T05:47:29Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@cmart](https://community.mp3tag.de/u/cmart)
#### Post date: [January 23, 2016, 5:47am UTC](https://community.mp3tag.de/t/how-can-i-split-a-string-by-capital-upper-case-letters/17582/1 "2016-01-23T05:47:29Z")
Boy I hope someone here can assist me with this one.
In the mist of me learning how to use the Regular Expressions function of MP3Tag 2.73 I screwed up my entire library of 892 MP3 files.
I accidentally remove the "Space" from the first and last instance of a phrase for each field in the MP3 Tag (Title, Artist, Album, Genre, Comment...)
So instead of my having:
Title: Dance (Louie Vega Dance Ritual Mix)
Artist: 3 Winans Brothers & The Clark Sisters
Album: Dance (Louie Vega Remix)
Genre: Soulful House
Comment: Vega Records
I now have the following:
Title: Dance(Louie Vega Dance RitualMix)
Artist: 3Winans Brothers & The ClarkSisters
Album: Dance(Louie VegaRemix)
Genre: SoulfulHouse
Comment: VegaRecords
Again the combined phrase only seems to occur in the beginning and the end (First 2 words/characters and last 2 words/characters that were separated by a space) of every string for each field. If there are only 2 strings for the fieled, well the space has also been removed.
Can someone please give me a Regular Expression to fix this mess? I can't go in and manually split each combined phrase for my entire library. That would take me months.
Tried Googling for assistance, but the examples given don't seem to work in MP3tag:
Ex: ((?\<=[a-z])[A-Z]|A-Z)
Ex: (?=[A-Z][^A-Z])
Can't believe I did something so DUMB!!!
Any help would be greatly appreciated.
---
### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [January 23, 2016, 8:22am UTC](https://community.mp3tag.de/t/how-can-i-split-a-string-by-capital-upper-case-letters/17582/2 "2016-01-23T08:22:25Z")
Try this thread for the "Upper Camel Case"
[Regular Expressions](https://community.mp3tag.de/t/521/33)
Putting a blank in front of parenthesis has to be dealt with in a separate action, "Replace" for the field with
Search string:(
Replace String: \_(
(where the \_ represents a blank).
Afterwards you can replace 2 blanks with 1 blank.
---
### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:26pm UTC](https://community.mp3tag.de/t/how-can-i-split-a-string-by-capital-upper-case-letters/17582/3 "2026-02-09T12:26:04Z")