From: Yuan Fu <casouri@gmail.com>
To: emacs-devel <emacs-devel@gnu.org>
Subject: Distinguish between regional undo and undo to the beginning in undo-equiv-table
Date: Tue, 2 Mar 2021 15:40:47 -0500 [thread overview]
Message-ID: <195AF8D0-1BFD-419D-88A1-69EA1FEED4D6@gmail.com> (raw)
Currently if I undo to the beginning of the pending-undo-list, buffer-undo-list is mapped to t in undo-equiv-table. Meanwhile, if the undo is undo-in-region, the buffer-undo-list is also mapped to t in undo-equiv-table.
That means my package that constructs an undo tree from buffer-undo-list cannot distinguish the two and thus cannot work incorrectly. Is it ok to map one type of undo to something other than t? Maybe a symbol 'undo-in-region? Would that break anything? Or maybe we can create another hash table to mark undo-in-region undos.
I can explain how does my package use undo-equiv-table if needed.
Yuan
next reply other threads:[~2021-03-02 20:40 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-02 20:40 Yuan Fu [this message]
2021-03-02 23:50 ` Distinguish between regional undo and undo to the beginning in undo-equiv-table Stefan Monnier
2021-03-03 15:42 ` Yuan Fu
2021-03-03 16:50 ` Stefan Monnier
2021-03-03 20:33 ` Yuan Fu
2021-03-03 21:29 ` Stefan Monnier
2021-03-03 21:59 ` Yuan Fu
2021-03-03 22:08 ` Yuan Fu
2021-03-03 22:28 ` Stefan Monnier
2021-03-04 16:18 ` Yuan Fu
2021-03-05 15:57 ` Stefan Monnier
2021-03-06 17:28 ` Yuan Fu
2021-03-06 18:40 ` Stefan Monnier
2021-03-11 17:50 ` Yuan Fu
2021-03-11 17:54 ` Stefan Monnier
2021-03-11 21:23 ` Yuan Fu
2021-03-11 22:41 ` Stefan Monnier
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