[F] False duplicate detection in loop limit

[chrisjj]

Help https://docs.mp3tag.de/export says:

If you want to limit the loop output to a certain number of entries, simply use $loop(%fieldname%,num). This is useful to eliminate duplicate records (num=1).

yet here only one of the two (non-duplicate) titles gets output:

ISTM program is comparing case-insensitively and either the program or the Help ("duplicate") is incorrect.

If anyone knows a workaround, please say.

[DetlevD]

@chrisjj

... ISTM program is comparing case-insensitively and either the program or the Help ("duplicate") is incorrect.
If anyone knows a workaround, please say.

There is a workaround which can detect differences in lower / upper case, ...
but cannot handle diacritics.

__Export.loop.case.respect.mte ( 845bytes ) Number of downloads: 1

__Export.loop.case.respect.mte (1.15 KB)
DD.20140323.0953.CET

__Export.loop.case.respect.mte (1.15 KB)

[chrisjj]

@DetlevD

There is a workaround which can detect differences in lower / upper case, ...
but cannot differentiate diacritics.

__Export.loop.case.respect.mte ( 845bytes ) Number of downloads: 1

Thanks, D. In my sample script given, I replaced

 $loop(%title%,1)

with your

 $loop(%TITLE%$regexp($regexp(%TITLE%,'\l','0'),'\u','1'),1)

and that gave case-insensitivity as I required.

Re diacritics, my full script is is intended to output a playlist containing all tracks showing deviation in title, e.g. having title differing from that of any track in presence/absence of (Spanish) diacritics or any character other than letters or digits, or letter case. With your case fix, that script is now:

#EXTM3U
$loop($regexp($replace($lower(%title%),á,a,é,e,í,i,ó,o,ú,u,n,ñ),'[^a-zA-Z0-9]',))$loop(%TITLE%$regexp($regexp(%TITLE%,'\l','0'),'\u','1'),1)$loopend()$ifgreater(%_max_counter%,1,$loop(%title%)#EXTINF:%_lentgh%,%artist% - %title%
%_path%
$loopend()
,)$loopend()

From this list of titles

A bailar
A bailar
Adios muchachos
Adios, muchachos
Chique
Chiqué
La Cumparsita
La cumparsita
Vida Mía
Vida mía

it puts these in a EXTM3U playlist

Adios muchachos
Adios, muchachos
Chique
Chiqué
La Cumparsita
La cumparsita
Vida Mía
Vida mía

.

I then load the playlist into Mp3tag for manual correction of the faulty titles.

[Florian]

I've fixed this with Mp3tag v2.59.

[2014-04-13]  FIX: export field parameter at $loop() was compared case-insensitive which caused unexpected behavior at duplicate detection.

Thanks for reporting!

Kind regards
Florian

[chrisjj]

Thanks.

FTR, this makes V2.59 incompatible with previous versions when performing some export configs.