The slash (`/`) characters in tags are not correctly parsed

[tranxuanthang]

The slash (`/`) characters in tags are not correctly parsed

[polyfloyd]

ID3 has support for split values in text frames. In v2.2 and v2.3 the separator is a slash while in v2.4 it is a null byte.

I intended the library to have a uniform ID3v2.4 interface, so everything that it reads is normalized to use null bytes. But I must admit that this leaves much to desire...

Splitting happens at a very low level, just after decoding at src/stream/frame/content.rs:449

It might be worth considering making the split functions of TagLike version aware so at least the underlying content remains untouched unless desired

[tranxuanthang]

After seeing these:

• #82
• martpie@ce18ca8

I understand the issue better now. But still I think assuming the slash / character as separator for multiple entries for ID3 v2.2 or v2.3 might end up messing with a few artist names. One of these cases is my first example, calling tag.artists() will get you Some(["Alan Walker, Au", "Ra, Tomine Harket"]).

At least, I think the null/slash substitute definitely should not apply for all text fields, for example album name and track name. And tag.artist() should return the expected result, without null terminator character.