A talk about how mp3 tagging sucks, and Regtag, which aims to solve it: https://github.com/xsawyerx/regtag This talk was originally given at YAPC::EU 2013 (in Kiev) and then at Cluj.pm, on November 7th, 2013.

1. Unstupidifying
mp3 tagging
or...
Sawyer X ( @PerlSawyer)

2. The beginning...
Single mp3 files
Tagging was easy

3. But then came...
THE FULL ALBUMS
Not a lot at first
Kept manually editing
Sort of worked

4. "Damn you, internets!" stage
Too much music
Too many files
Can't tag them all easily

5. Problems
Not GNU/Linux || Mac || Windows || Solaris
Selectively editing a single file each time
Requiring GUI
Not descriptive enough
Not generic enough
Not powerful enough
(honorable mention: l t g
la)

6. SHIT IS FUCKED UP AND BULLSHIT
MP3 TAGGING IS FUCKED UP AND BULLSHIT

7. What do you do?
Rip yourself?
Download quality releases?
Nothing is really what you want

8. Thinking like a programmer
Tags are metadata
Filenames are strings
... in patterns!

9. Regtag
Regular expression tagging
(tagging mp3s using regular expressions)

10. Example
Propagandhi - (02) Failed States.mp3
Propagandhi - (02) Failed States.mp3
Artist: Propagandhi
(<rit[­az+
?ats>AZ­])
Track number: 02
(<rc>d2)
?tak{}
Track title: Failed States
(<il>*
?tte.)
$rga tg'^?ats>AZ-])-(<rc>d2))(<il>*m3/
etg a /(<rit[-az+
(?tak{} ?tte.).p$'

11. Features
Supports all mp3 v1, most of v2
Full regexes (including /x)
Static variables (- d f n a t s = D a K n e y "
-eie rit"ed ends)
Already exists ( github.com/xsawyerx/regtag )

12. Future features
Releasing to CPAN
Built-in patterns
Saving/retrieving patterns
Transformation callbacks (- ' _ a t s } > c )
t ${rit-l'
(using E a : C o u eand A T L A )
vl:lsr
UOOD

13. Thank you