Failing to handle ZWJ ZWNJ

format tag field:
Format: %ALBUM%

  1. Album (it has ZWNJ): "ರಾಜ್‌ಕುಮಾರ್"
  2. Album (it has ZWJ): "ರ‍್ಯಾಂಕ್"

After the formatting is completed. The directory name will be

  1. Directory (without ZWNJ): "ರಾಜ್ಕುಮಾರ್"
  2. Directory (without ZWJ): "ರ್ಯಾಂಕ್"

Format function drops ZWNJ (u+200C) and ZWJ (u+200D). Both are invisible(non-printing) characters. Mac accepts them when I edit the folder directly. So, it is definitely the mp3tag, "format tag field" that is dropping the invisible(non-printing) characters.

This could be true for other invisible(non-printing) characters Non-breaking space NBSP U+00A0

Please rectify

@Florian Please review this.

It is a bug, needs to be fixed.

I'm not sure yet, most users are not aware of those special characters and those of Unicode General Category Cc and Cf have caused a lot of hard-to-identify support issues in the past.

They are not a strange characters, it’s part of standard Unicode set, OS should handle it just fine.

It is working fine in all tags, just the _DIRECTORY field it’s failing

or At least is there a work around to this issue. I want to batch process folder names in unicode. It is possible they will have ZWJ, ZWNJ and I want to retain them

@Florian can u please enable at least ZWJ and ZWNJ, it is fully supported in Mac OS filesystem. It is required many scripts in unicode.

I've added support for ZWJ and ZWNJ with Mp3tag for Mac v1.7.3.

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@Florian Thank you very much.

I greatly appreciate the changes

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Also, I tested the renaming files in Mac OS Ventura. There is no issue.

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