Re: emacs-27 60c84ad: ; * etc/TODO: Fix last change.

[Robert Pluim]

>>>>> On Mon, 02 Mar 2020 13:36:26 +0200, Eli Zaretskii <address@hidden> said:

    >> From: Robert Pluim <address@hidden>
    >> Date: Mon, 02 Mar 2020 11:40:35 +0100
    >> Cc: Eli Zaretskii <address@hidden>
    >> 
    >> >>>>> On Sat, 29 Feb 2020 12:31:25 -0500 (EST), address@hidden (Eli 
Zaretskii) said:
    >> 
    Eli> Emacs by default displays the Variation Selector (VS) codepoints not
    Eli> -composed with base characters as thin 1-pixel space glyphs.  The
    Eli> -Unicode FAQ says that if variation sequences cannot be supported, the
    Eli> -VS characters should not be shown, leaving just the base character of
    Eli> -the sequence visible.  This could be handled via
    Eli> -glyphless-char-display, by changing the entries for VS codepoints to
    Eli> -'zero-width'.
    Eli> +composed with base characters as hex codes in a box.  The Unicode FAQ
    Eli> +says that if variation sequences cannot be supported, the VS
    Eli> +characters should not be shown, leaving just the base character of the
    Eli> +sequence visible.  This could be handled via glyphless-char-display,
    Eli> +by changing the entries for VS codepoints to 'zero-width'.  Or we
    Eli> +could display them as a thin 1-pixel space, as we do with format
    Eli> +control characters, by using 'thin-space' there.
    >> 
    >> I have emacs set up to show a 1-pixel space, since I hate hidden
    >> control characters. I think it would be a better default than a
    >> hex-box or hiding them.

    Eli> Then maybe this TODO item is for you ;-)

I thought processing the emoji files from Unicode was mine? :-) Iʼll
take a look after that is done.

BTW, Iʼve run into a small problem with that: Iʼm using regexp-opt,
which results in:

    Loading international/emoji-zwj...
    Attempt to autoload regexp-opt while preparing to dump
    make[1]: *** [emacs.pdmp] Error 255

I canʼt require it either:

    Loading international/emoji-zwj...
    (require regexp-opt) while preparing to dump
    make[1]: *** [emacs.pdmp] Error 255

I guess the composition rules donʼt *have* to be dumped, but it would
be nice if they were.

Robert