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* variables.texi (File Local Variables): Note that read-circle is

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bound to nil when reading file-local variables.

* streams.texi (Input Functions): Document read-circle.
(Output Variables): Add xref to Circular Objects.
This commit is contained in:
Chong Yidong 2009-04-29 03:13:16 +00:00
parent 91f68422d6
commit dd44967407
3 changed files with 21 additions and 2 deletions
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8
doc/lispref/ChangeLog
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@ -1,3 +1,11 @@
2009-04-29 Chong Yidong <cyd@stupidchicken.com>
* variables.texi (File Local Variables): Note that read-circle is
bound to nil when reading file-local variables.
* streams.texi (Input Functions): Document read-circle.
(Output Variables): Add xref to Circular Objects.
2009-04-25 Chong Yidong <cyd@stupidchicken.com>
* tips.texi (Coding Conventions): Copyedits. Add xref to Named

10
doc/lispref/streams.texi
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@ -341,6 +341,12 @@ This variable holds the default input stream---the stream that
The default is @code{t}, meaning use the minibuffer.
@end defvar
@defvar read-circle
If non-@code{nil}, this variable enables the reading of circular and
shared structures. @xref{Circular Objects}. Its default value is
@code{t}.
@end defvar
@node Output Streams
@section Output Streams
@cindex stream (for printing)
@ -794,8 +800,8 @@ Emacs-Lisp Expressions, emacs, The GNU Emacs Manual}).
and shared structure:
@defvar print-circle
If non-@code{nil}, this variable enables detection of circular
and shared structure in printing.
If non-@code{nil}, this variable enables detection of circular and
shared structure in printing. @xref{Circular Objects}
@end defvar
@defvar print-gensym

5
doc/lispref/variables.texi
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@ -1539,6 +1539,11 @@ your Emacs. Emacs protects against this by automatically setting only
those file-local variables whose specified values are known to be
safe. Other file-local variables are set only if the user agrees.
For additional safety, @code{read-circle} is temporarily bound to
@code{nil} when Emacs reads file-local variables (@pxref{Input
Functions}). This prevents the Lisp reader from recognizing circular
and shared Lisp structures (@pxref{Circular Objects}).
@defopt enable-local-variables
This variable controls whether to process file-local variables.
The possible values are: