# Regular Expressions

**URL:** https://community.mp3tag.de/t/regular-expressions/521
**Category:** Howto
**Created:** [October 16, 2003, 4:47pm UTC](https://community.mp3tag.de/t/regular-expressions/521 "2003-10-16T16:47:29Z")
**Posts on this page:** 1
**Showing post:** 19

<div class="post-metadata">

### Author: ![Harakiri](https://community.mp3tag.de/user_avatar/community.mp3tag.de/harakiri/32/142_2.png) [@Harakiri](https://community.mp3tag.de/u/Harakiri)
#### Post date: [September 1, 2008, 8:02pm UTC](https://community.mp3tag.de/t/regular-expressions/521/19 "2008-09-01T20:02:52Z")

</div>

Another member helped me creating one of the most useful REGEXP that i use so far:

From this:  
  
**Röyksopp - Beautiful DAY withOUT yoU (Rex The Dog Remix)**  
   
To this:  
  
**Röyksopp - Beautiful day without you (Rex The Dog Remix)**  
   
USING:  
  
**Action type: Replace with regular expression  
Field: TITLE  
Regular expression: ^(.\*?)((|$)  
Replace matches with: $caps3($1)$2  
[] case-sensitive comparison**

[See the original thread here](https://community.mp3tag.de/t/5635/1)

---

_[View the full topic](https://community.mp3tag.de/t/regular-expressions/521)._