Coding for Emoji: how to modify programs to work with emoji

Mark Davis ☕️ via Unicode unicode at
Tue Oct 22 05:18:06 CDT 2019

That sentence is specific to Emoji sequences. I added a note make it clear
that the behavior of backspace for combining marks may be language or
script dependent.

BTW, the speaker notes were added quickly; feedback on them is welcome.


On Tue, Oct 22, 2019 at 9:41 AM Richard Wordingham via Unicode <
unicode at> wrote:

> On Mon, 21 Oct 2019 11:21:03 +0200
> Mark Davis ☕️ via Unicode <unicode at> wrote:
> > FYI, here is my presentation from the IUC43:
> When it comes to the second sentence of the text of Slide 7 'Grapheme
> Clusters', my overwhelming reaction is one of extreme anger.  Slide 8
> does nothing to lessen the offence.  The problem is that it gives the
> impression that in general it is acceptable for backspace to delete the
> whole grapheme cluster.
> Richard.
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