Group enum cases based on `MARK` comments

[sindresorhus]

For https://github.com/sindresorhus/KeyboardShortcuts/blob/49b017b2450ac37353934d94d6c64957b62c45b4/Sources/KeyboardShortcuts/Key.swift#L8-L34, I get the following: https://sindresorhus.com/playground/KeyboardShortcuts_Key/

With Jazzy, I get the enum cases grouped too: https://sindresorhus.com/KeyboardShortcuts/Classes/KeyboardShortcuts/Key.html#/Letters

[mattt]

@sindresorhus Curious to know, do you have any thoughts about how MARK headings should relate to declaration type groupings? Should we treat them as peers / alternates or should we see the current "by type" grouping just as the default sections for when MARK headings aren't provided?

[sindresorhus]

My preference would be for them to be sub-headings under the Enumeration Cases section. Jazzy makes them top-level sections, which feels wrong to me.

[mattt]

@sindresorhus What if a section contains different kinds of symbols? For example:

enum E {

// MARK: Example

case c
func f() {}
}

Would they repeat for each kind of symbol, like this?

• Cases
  • "Example"
    • c
• Methods
  • "Example"
    • f()

[sindresorhus]

Not sure, to be honest. I wouldn't use MARK like that.