Re: emacs-29 2f94f6de9d6: Make VS-15 and VS-16 compositions work correctly

[Michael Albinus <michael.albinus@gmx.de>]

Robert Pluim <rpluim@gmail.com> writes:

Hi Robert,

> branch: emacs-29
> commit 2f94f6de9d64f9fd89284dac171e166e7d721dcd
> Author: Robert Pluim <rpluim@gmail.com>
> Commit: Robert Pluim <rpluim@gmail.com>
>
>     Make VS-15 and VS-16 compositions work correctly
>
>     There is a conflict between forward matching and backward matching
>     composition rules involving the same codepoint, which can cause the
>     backward matching ones not to be invoked.  Ensure that VS-15 (U+FE0E)
>     and VS-16 (U+FE0F) are composed by forward matching rules instead in
>     order to avoid this issue.
>
>     * admin/unidata/emoji-zwj.awk: Add rules for CHAR+VS-15 and CHAR+VS-16.
>     * lisp/composite.el: remove backward matching rule for VS-15.  (Bug#63731)
> ---
>  admin/unidata/emoji-zwj.awk | 3 ++-
>  lisp/composite.el           | 2 +-
>  2 files changed, 3 insertions(+), 2 deletions(-)

On emba, we see (in make bootstrap)

--8<---------------cut here---------------start------------->8---
#12 559.7   GEN      ../../lisp/international/emoji-zwj.el
#12 559.8 mawk: program limit exceeded: sprintf buffer size=8192
#12 559.8 	FILENAME="emoji-zwj.awk" FNR=141 NR=3046
#12 559.8 make[4]: *** [Makefile:120: ../../lisp/international/emoji-zwj.el] Error 2
--8<---------------cut here---------------end--------------->8---

See <https://emba.gnu.org/emacs/emacs/-/jobs/68356>

Best regards, Michael.