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bug#17090: desktop.el saves unusable register data in register-alist
From: |
Juanma Barranquero |
Subject: |
bug#17090: desktop.el saves unusable register data in register-alist |
Date: |
Mon, 24 Mar 2014 21:31:30 +0100 |
Package: Emacs
Severity: minor
emacs -Q -f desktop-save-mode
C-x r w a
C-x C-x
y <RET>
emacs -Q -f desktop-read
C-x r j
=> a: rectangle starting with Unprintable entity
and similarly, when using
C-x r f a
restoring and then C-x r j brings
Error running timer: (invalid function "Unprintable entity")
register-alist is in desktop-globals-to-save by default, so it should
work out of the box. but any fix is going to be ugly.
Possibilities:
- Cleaning register-alist from desktop-save-hook. Not a good idea
because the session does not necessarily end on desktop-saving (and
even less now, with timer-based saving).
- Modify desktop-outvar to skip anything whose serialization matches
"Unprintable entity".
- Modify desktop-outvar with register-alist specific knowledge, so it
filters out only some entries when serializing.
- Design a more generic mechanism to allow variables to have cleaning
specific functions.
The first three options are horribly hackish, and the last one is a
bit overkill if we only want to avoid the register-alist issue (the
mechanism would be generally useful, but no one has ever asked for
it...)
Ideas?
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