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Re: let vs. buffer local bindings
From: |
Andreas Schwab |
Subject: |
Re: let vs. buffer local bindings |
Date: |
Fri, 10 May 2002 15:32:08 +0200 |
User-agent: |
Gnus/5.090006 (Oort Gnus v0.06) Emacs/21.2.50 (ia64-suse-linux) |
address@hidden (Kim F. Storm) writes:
|> Gareth Owen <address@hidden> has found a peculiar
|> interference between let and buffer local bindings.
*Note Introduction to Buffer-Local Variables: (elisp)Intro to
Buffer-Local.
*Warning:* When a variable has buffer-local values in one or more
buffers, you can get Emacs very confused by binding the variable with
`let', changing to a different current buffer in which a different
binding is in effect, and then exiting the `let'. This can scramble
the values of the buffer-local and default bindings.
To preserve your sanity, avoid using a variable in that way. If you
use `save-excursion' around each piece of code that changes to a
different current buffer, you will not have this problem (*note
Excursions::).
Andreas.
--
Andreas Schwab, SuSE Labs, address@hidden
SuSE GmbH, Deutschherrnstr. 15-19, D-90429 Nürnberg
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"And now for something completely different."