I can show whitespace ("invisibles") in Xcode 10, and some of the resulting placeholder glyphs are easy to figure out, but I cannot figure out all of them.
For instance, which line ending is this supposed to represent: ¤?
Is there a list of all of them, or is there a convention for representing whitespace characters with other glyphs that I have missed?
The ¤ character represents a CR (carriage return) line ending. Windows files typically use CRLF (carriage return & line feed) line endings, which are represented with ¤┐. Old versions of macOS only used CR as a line ending. (source)
Full list:
╔════════╦══════════════════════════════════════════════════╗ ║ Symbol ║ Meaning ║ ╠════════╬══════════════════════════════════════════════════╣ ║ · ║ space ║ ║ ···• ║ tabulator (when Indent Using is set to "Spaces") ║ ║ » ║ tabulator (when Indent Using is set to "Tabs") ║ ║ ¤ ║ CR line ending ║ ║ ┐ ║ LF line ending ║ ║ ¤┐ ║ CRLF line ending ║ ╚════════╩══════════════════════════════════════════════════╝