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From: "Richard M. Stallman" <rms@gnu.org>
Cc: jyavner@member.fsf.org, emacs-devel@gnu.org
Subject: Re: risky local variable mechanism
Date: Sun, 12 Feb 2006 23:40:02 -0500	[thread overview]
Message-ID: <E1F8VVJ-0007N3-WF@fencepost.gnu.org> (raw)
In-Reply-To: <200602110319.k1B3Jhv15827@raven.dms.auburn.edu> (message from Luc Teirlinck on Fri, 10 Feb 2006 21:19:43 -0600 (CST))

       unsafep.el (used by SES) calls risky-local-variable-p with NIL as the 
       second argument, because it doesn't know yet what value will be 
       assigned.

    If the current risky-local-variable-p is too unreliable for
    `enable-local-eval' to such a degree that an urgent fix is needed, is
    it really reliable enough for unsafep?

Maybe it isn't.  However, it is not necessary for unsafep to be completely
as strict as the local variable criteria in all ways, because unsafep
checks for function values.

Meanwhile, as regards the special meaning of nil as the second
arg to risky-local-variable-p, we could instead have a variable
risky-local-variable-token, whose value is a particular cons cell,
and give that cons cell the special meaning of "unspecified value".

The value that hack-one-local-variable produces is made by `read'
so it will never be eq to risky-local-variable-token.

  reply	other threads:[~2006-02-13  4:40 UTC|newest]

Thread overview: 86+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-02-10 18:13 risky local variable mechanism Jonathan Yavner
2006-02-11  3:19 ` Luc Teirlinck
2006-02-13  4:40   ` Richard M. Stallman [this message]
2006-02-11 17:08 ` Chong Yidong
2006-02-11 20:27   ` Jonathan Yavner
2006-02-11 20:46     ` Chong Yidong
2006-02-12 19:29       ` Richard M. Stallman
2006-02-12 19:52         ` Chong Yidong
2006-02-13 20:05           ` Richard M. Stallman
2006-02-13 21:03             ` Chong Yidong
2006-02-12  1:10     ` Luc Teirlinck
2006-02-12 19:29       ` Richard M. Stallman
  -- strict thread matches above, loose matches on Subject: below --
2006-02-02  8:14 Risky " LENNART BORGMAN
     [not found] <E1F46oA-0005O8-FC@monty-python.gnu.org>
2006-02-01 15:24 ` Jonathan Yavner
2006-02-01 17:00   ` Stefan Monnier
2006-02-01 23:31     ` Kim F. Storm
2006-02-02  5:05       ` Stefan Monnier
2006-02-01 23:12   ` Chong Yidong
2006-02-02 16:21   ` Richard M. Stallman
2006-02-02 17:00     ` Stefan Monnier
2006-01-31 23:09 Richard M. Stallman
2006-02-01  0:37 ` Stefan Monnier
2006-02-01  0:41   ` Luc Teirlinck
2006-02-01  2:39     ` Stefan Monnier
2006-02-02  4:17   ` Richard M. Stallman
2006-02-02 12:42     ` Kim F. Storm
2006-02-03 23:43       ` Richard M. Stallman
2006-02-04  4:34         ` Luc Teirlinck
2006-02-05 17:34           ` Richard M. Stallman
2006-02-06  6:00             ` Luc Teirlinck
2006-02-07  6:07               ` Richard M. Stallman
2006-02-07  2:47             ` Luc Teirlinck
2006-02-07 16:45         ` Chong Yidong
2006-02-08  1:49           ` Luc Teirlinck
2006-02-08  2:09             ` Chong Yidong
2006-02-08  2:18               ` Luc Teirlinck
2006-02-08  4:30                 ` Chong Yidong
2006-02-08  4:56                   ` Chong Yidong
2006-02-08  5:02                     ` Luc Teirlinck
2006-02-08  5:00                   ` Luc Teirlinck
2006-02-08  5:28                     ` Chong Yidong
2006-02-08  3:13             ` Stefan Monnier
2006-02-08  4:51               ` Chong Yidong
2006-02-08  5:07                 ` Stefan Monnier
2006-02-08  5:25                   ` Chong Yidong
2006-02-08  6:00                     ` Stefan Monnier
2006-02-08 13:35                       ` Chong Yidong
2006-02-08 21:41                         ` Stefan Monnier
2006-02-08  6:06                     ` Luc Teirlinck
2006-02-08  6:49                       ` Stefan Monnier
2006-02-08  5:48                 ` Luc Teirlinck
2006-02-08  6:08                   ` Stefan Monnier
2006-02-08  6:17                     ` Luc Teirlinck
2006-02-08  6:48                       ` Stefan Monnier
2006-02-09 17:47                         ` Richard M. Stallman
2006-02-09 17:47                   ` Richard M. Stallman
2006-02-10 23:57                     ` Luc Teirlinck
2006-02-08  9:21                 ` Juri Linkov
2006-02-08 15:45                 ` Drew Adams
2006-02-09  3:58                   ` Luc Teirlinck
2006-02-09 17:48           ` Richard M. Stallman
2006-02-10  5:34         ` Chong Yidong
2006-02-10 17:03           ` Stefan Monnier
2006-02-10 17:54             ` Chong Yidong
2006-02-11  0:31           ` Luc Teirlinck
2006-02-12  1:00             ` Stefan Monnier
2006-02-12  4:30             ` Richard M. Stallman
2006-02-11  3:31           ` Luc Teirlinck
2006-02-12  1:02             ` Stefan Monnier
2006-02-12  1:15               ` Luc Teirlinck
2006-02-11 16:44           ` Richard M. Stallman
2006-02-14  1:33         ` Chong Yidong
2006-02-14  2:50           ` Luc Teirlinck
2006-02-14 22:17             ` Richard M. Stallman
2006-02-14  3:16           ` Luc Teirlinck
2006-02-14  3:32             ` Luc Teirlinck
2006-02-14  3:38               ` Luc Teirlinck
2006-02-14  3:48             ` Chong Yidong
2006-02-14  4:11               ` Luc Teirlinck
2006-02-14  4:26                 ` Chong Yidong
2006-02-02 12:47     ` Kim F. Storm
2006-02-01  2:30 ` Chong Yidong
2006-02-02  4:15   ` Richard M. Stallman
2006-02-02  9:54     ` David Kastrup
2006-02-02 14:54       ` Kim F. Storm
2006-02-03  5:04         ` Richard M. Stallman

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