Removing a specific value - but only for a specific fileformat

[Zerow]

Sometimes my TTA files have tta or TTA written in their _FIENAMEs, i.e. before the extension

Something as simple as just replacing " tta" with disregard for case-sensitive comparison in TITLE field does the trick. And I use that single pause [i.e. " tta" instead of "tta"] as a fail-safe - but I would like to add another layer to it:

I need to make this action work only for files in TTA format, which will reduce the number of wrong usages thus error [thus data loss]

So how do I do that? I am guessing I would need to use Replace with regular expression instead of ordinary Replace

[LyricsLover]

Just use a filter F3 first to reduce your list to your TTA files.
Then execute your action to this filtered list of files.

[Zerow]

But I need this as an single action; as in using a single groups action and not combining it with other Mp3tag features

[LyricsLover]

@ohrenkino explains here why it is not possible to use a filter in a action.

[ohrenkino]

@Zerow

I am guessing I would need to use Replace with regular expression instead of ordinary Replace

If you replace a text constant with another text constant (in this case constantly nothing) then you only need an action of the type "Replace".

I have just scanned my collection and found "Whole lotta love", "Gotta be strarting something", "Loretta", "Violetta" as part of a Verdi opera, "Outtake" as part of a title, "Attack of the clones" - so there are a lot of titles (and probably filenames) with tta in them
I also wonder how the presence of these 3 letters would lead to

@Zerow

data loss

[LyricsLover]

@Zerow

But I need this as an single action; as in using a single groups action and not combining it with other Mp3tag features

If you really want to go that way, you could use something like this in your "Format value" action:
$if($eql('TTA',$upper(%_extension%)),$repl(%TITLE%,' tta ',' '),)

Please don't use this abbreviated syntax!

As found in this bug report, the abbrevation of $repl instead of using $replace can result in unwanted changes. Always use $replace as stated in the help.

This would replace the text space tta space with a single space whenever the extension of the current file is TTA. You have to adjust it to your needs and use cases.

As @ohrenkino told you: This will also remove the bold marked text from titles:
Let tta and Cathode
or
Too young tta way

[Zerow]

@ohrenkino

[...]
I have just scanned my collection and found "Whole lotta love", "Gotta be strarting something", "Loretta", "Violetta" as part of a Verdi opera, "Outtake" as part of a title, "Attack of the clones" - so there are a lot of titles (and probably filenames) with tta in them
I also wonder how the presence of these 3 letters would lead to

@Zerow

data loss

@LyricsLover

[...]
As @ohrenkino told you: This will also remove the bold marked text from titles:
Let tta and Cathode
or
Too young tta way

Either I am unable to imagine negative consequence - or both of you did not understand me


The data loss will occur precisely in such cases like @ohrenkino examples - if I will not use the first fail safe [i.e. " tta" with a pause]

All in all, based on this

@LyricsLover

@Zerow

But I need this as an single action; as in using a single groups action and not combining it with other Mp3tag features

If you really want to go that way, you could use something like this in your "Format value" action:
$if($eql('TTA',$upper(%_extension%)),$repl(%TITLE%,' tta ',' '),)

[...]

I went with

$if($eql('TTA',$upper(%_EXTENSION%)),$repl(%TITLE%,' tta',' '),)
$if($eql('TTA',$upper(%_EXTENSION%)),$repl(%TITLE%,' TTA',' '),)
$if($eql('TTA',$lower(%_EXTENSION%)),$repl(%TITLE%,' tta',' '),)
$if($eql('TTA',$lower(%_EXTENSION%)),$repl(%TITLE%,' TTA',' '),)

as I failed at adding The fourth optional parameter enables ignore case (1) [Scripting Functions – Mp3tag Documentation]; i.e. those did not work

$if($eql('TTA',$upper(%_EXTENSION%)),$repl(%TITLE%,' tta',' ',1),)
$if($eql('TTA',$lower(%_EXTENSION%)),$repl(%TITLE%,' tta',' ',1),)

and neither did those

$if($eql('TTA',$upper(%_EXTENSION%)),$repl(%TITLE%,' tta',' '),1)
$if($eql('TTA',$lower(%_EXTENSION%)),$repl(%TITLE%,' tta',' '),1)

And on the side note- I stumbled upon a bug: Similar actions get mixed up when using abbreviated function name

[LyricsLover]

Either you use $upper with the extension comparison in UPPERCASE

$if($eql('TTA',$upper(%_EXTENSION%)),$repl(%TITLE%,' TTA',' '),)

or you use $lower with the extension comparison in lowercase

$if($eql('tta',$lower(%_EXTENSION%)),$repl(%TITLE%,' TTA',' '),)

Do you want to replace the tta string in all variations like tta, tTa, tTA, TTa, ttA, TTA?
Or what case should be ignored?

Later added warning:

Please don't use this abbreviated syntax!

As found in this bug report, the abbrevation of $repl instead of using $replace can result in unwanted changes. Always use $replace as stated in the help.

[ohrenkino]

@Zerow

as I failed at adding The fourth optional parameter enables ignore case (1)

In $replace() is no fourth optional parameter to ignore the case, in fact
"Functions with variable parameter count (e.g., Replace) are limited to < 64 parameters"

[Zerow]

@LyricsLover

[...]
Do you want to replace the tta string in all variations like tta, tTa, tTA, TTa, ttA, TTA?
Or what case should be ignored?

All variants

They are unlikely but can happen, but as I am at it I should address altogether that very rare issue - but adding to the code all variants manually will be a tedious task

[ohrenkino]

@Zerow

but adding to the code all variants manually will be a tedious task

You can die only one death: either you use the filter and a plain replace action that ignores the case or you enclose the whole thing in a complicated $IF() but then you have to mention all iterations.