Re: Display of undisplayable characters: \U01F3A8 instead of diamond

[Richard Stallman]

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  > Anyway,
  > I workarounded it by modifying glyphless-char-display with the following
  > in terminal buffers:

  > --8<---------------cut here---------------start------------->8---
  > (set-char-table-extra-slot glyphless-char-display 0 'thin-space)
  > --8<---------------cut here---------------end--------------->8---

  > This shows a single space character.  

Could a variant of that display a diamond instead of a space?

Eli wrote

  > One way of verifying this is to type

  >    C-x 8 RET fffd RET

  > in an Emacs session which displays on the Linux console, and see if
  > that shows the diamond-like glyph or the \Unnnn thing.  If it's the
  > latter, it means the console doesn't support that character, and we
  > cannot send its code from Emacs.

but what is so bad about sending a glyph that the terminal can't
display?  What bad results does it cause?

Or how about fixing it by sending an official code for that diamond glyph?


-- 
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)