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Re: [PATCH 1/2] Add new variable to force new-style backquote interpreta
From: |
Stefan Monnier |
Subject: |
Re: [PATCH 1/2] Add new variable to force new-style backquote interpretation. |
Date: |
Sun, 31 Dec 2017 00:08:58 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
>> > As discussed in
>> > http://lists.gnu.org/archive/html/emacs-devel/2017-10/msg00051.html, we
>> > (mostly) agreed to first turn them into errors
Still looks like a complete waste of time to me. I still haven't seen
a single example of code which works in Emacs-25 (say) and fails in
a byzantine manner if we silently drop support for old-style backquotes.
OTOH we have already seen at least one example of code which works
correctly in Emacs-25, works correctly if we drop support for old-style
backquotes, and yet fails with this "in-between" support.
So not only it's extra work for very little benefit (i.e. try and
protect us from a hypothetical case no-one has ever seen in the wild)
but it even costs us a known bug.
Sorry, but the tradeoff really doesn't look good from here.
Stefan