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Merge from emacs-23; up to 2010-06-01T01:49:15Z!monnier@iro.umontreal.ca

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Glenn Morris 2011-02-19 11:40:59 -08:00
commit 67ab0163d6
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doc/lispref/variables.texi
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@ -1407,6 +1407,8 @@ subsequent major mode. @xref{Hooks}.
@cindex permanent local variable
A buffer-local variable is @dfn{permanent} if the variable name (a
symbol) has a @code{permanent-local} property that is non-@code{nil}.
Such variables are unaffected by @code{kill-all-local-variables}, and
their local bindings are therefore not cleared by changing major modes.
Permanent locals are appropriate for data pertaining to where the file
came from or how to save it, rather than with how to edit the contents.