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* Behaviour for save-excursion
@ 2009-10-06 13:44 Nathaniel Flath
  2009-10-06 14:44 ` martin rudalics
  2009-10-06 14:48 ` Chong Yidong
  0 siblings, 2 replies; 3+ messages in thread
From: Nathaniel Flath @ 2009-10-06 13:44 UTC (permalink / raw)
  To: emacs-devel

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What is the proper behaviour for save-excursion?  The emacs-lisp intro and
the docstring seem to have slightly differing explanations - namely, the
docstring mentions that it saves current-buffer as well as point and mark,
and the emacs-lisp intro does not.  Based on just what it does, I'm not
entirely sure which is correct - the following code snippet, executed in
*scratch*, returns the "*scratch*" buffer but the buffer displayed is the
"bar" buffer, and evaluating current-bufer afterwards returns the "bar"
buffer.

(progn
  (save-excursion
    (switch-to-buffer "bar"))
  (current-buffer))

Either the manual or the docstring should be changed to reflect what it
does, but I'm not entirely sure which based on this.

Thanks,
Nathaniel Flath

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2009-10-06 13:44 Behaviour for save-excursion Nathaniel Flath
2009-10-06 14:44 ` martin rudalics
2009-10-06 14:48 ` Chong Yidong

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