在 macOS 和 Android 平台实现音乐库中的自定义排序
macOS と Android での音楽ライブラリーのカスタムソート順
Custom sort order in music libraries is a rather rare need. Most major languages use phonograms in their scripts, where the natural sort order is more or less identical to what is seen in Unicode (probably after some normalizations). On the other hand, languages using logograms (logosyllabic scripts, mainly Chinese characters in our context) does not have their characters sorted in their primary natural (usually phonetic) order in Unicode.
This causes a problem where a list of text sorted in Unicode code point order can be odd and difficult to look up from in these languages. Custom sort order in music libraries is thus useful when you have songs in one of these languages, or even a mix of them.
As this article involves mainly with concepts common among Chinese and Japanese language users, this article is also written in