The SIL Recommended Characters for Non-Roman Fonts (https://scriptsource.org/entry/gg5wm9hhd3
) suggests, for U+FEFF ZERO WIDTH NO-BREAK SPACE, that: "BYTE ORDER MARK, making this visible might be helpful
What glyph should I use?
I currently have a glyph with no contours or advance width. To "make it visible", would I use:
(A) a dotted-box character with "ZWNBSP" in it (as shown in the Standard), or
(B) something like a vertical carat character as might be shown in a word processor?
Or ... could someone suggest a method (Windows-MS Office-based, preferably) that I could test
this? I.E. create a scenario that would show
U+FEFF as a visible character? I just don't know if all such apps will use their won concocted shape or if some of them might use the font's glyph if you "show invisibles" ...