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From: "Stephen J. Turnbull" <stephen@xemacs.org>
To: David Kastrup <dak@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: Raw string literals in Emacs lisp.
Date: Mon, 28 Jul 2014 10:29:41 +0900	[thread overview]
Message-ID: <871tt6nud6.fsf@uwakimon.sk.tsukuba.ac.jp> (raw)
In-Reply-To: <871tt7lzro.fsf@fencepost.gnu.org>

David Kastrup writes:

 > Reports of XEmacs being dead may be exaggerated, but it does look a
 > lot like suspended animation.

I'm OK with the latter description.

 > When rawstrings are supported, it becomes more expedient to recognize
 > things like \n and \t, probably also \f in regexps (\b is already
 > taken).

Sure.  AFAIK most of the modern regexp syntaxes do.  I guess that it's
possible that there are regexps out in the real world that contain
"\n" and work because "n" would work there too, so that is a change in
semantics.  (It's a shame that Emacs doesn't consider that kind of
thing an error, because it's almost certainly a bug.)

I don't really see a point in \f, though.  Emacs users (at least
old-timers) are used to seeing "^L" in their code, and I haven't seen
an Emacs configured to display that as an actual form feed in at least
20 years.  \t is useful because it displays the same as a number
(nondeterministic) of spaces, and \n is useful because embedding an
actual newline in a string messes up your indentation, often leaving a
lone double quote on the next line (when newline terminates the
string).







  parent reply	other threads:[~2014-07-28  1:29 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-25 19:47 Raw string literals in Emacs lisp Matthew Plant
2014-07-25 19:56 ` Tassilo Horn
2014-07-25 20:06   ` Matthew Plant
2014-07-25 20:15     ` Tassilo Horn
2014-07-25 20:24       ` Matthew Plant
2014-07-25 20:33 ` Tom Tromey
2014-07-25 21:40   ` Matthew Plant
2014-07-26  1:19 ` Stephen J. Turnbull
2014-07-26  5:28   ` Matthew Plant
2014-07-26  5:45     ` chad
2014-07-26 19:39       ` Matthew Plant
2014-07-27 12:27         ` Stephen J. Turnbull
2014-07-27 13:03           ` David Kastrup
2014-07-27 20:58             ` David Caldwell
2014-07-27 23:17               ` Matthew Plant
2014-07-28 18:27                 ` Richard Stallman
2014-07-28 19:32                   ` Matthew Plant
2014-07-29 19:15                     ` Richard Stallman
2014-07-30  0:26                       ` Matthew Plant
2014-07-30  4:28                         ` Richard Stallman
2014-07-30 18:54                           ` Matthew Plant
2014-07-28  2:16               ` Stephen J. Turnbull
2014-07-28  7:43                 ` Andreas Schwab
2014-07-30 20:28               ` Ted Zlatanov
2014-07-30 20:41                 ` David Caldwell
2014-07-30 20:54                   ` Ted Zlatanov
2014-07-30 21:01                     ` Matthew Plant
2014-07-30 21:16                       ` Ted Zlatanov
2014-07-30 21:19                         ` Matthew Plant
2014-07-31 10:13                           ` Ted Zlatanov
2014-08-02  8:47                     ` Alan Mackenzie
2014-08-02  9:14                       ` David Kastrup
2014-08-02 10:23                         ` Alan Mackenzie
2014-08-02 15:51                           ` Richard Stallman
2014-08-03  6:50                         ` Stephen J. Turnbull
2014-08-03  7:29                           ` David Kastrup
2014-08-03 13:12                             ` Stephen J. Turnbull
2014-08-03 13:27                               ` David Kastrup
2014-08-03 15:01                                 ` Stephen J. Turnbull
2014-08-04  1:55                                   ` Richard Stallman
2014-08-04  6:38                                     ` David Kastrup
2014-08-05  1:41                                       ` Richard Stallman
2014-08-05  6:15                                         ` David Kastrup
2014-08-03 13:40                               ` David Kastrup
2014-08-03 15:06                                 ` Stephen J. Turnbull
2014-08-04  1:55                           ` Richard Stallman
2014-08-02  9:17                     ` Andreas Schwab
2014-07-28  1:29             ` Stephen J. Turnbull [this message]
2014-07-26 21:37 ` Thorsten Jolitz
2014-07-29  6:32 ` William Xu
2014-07-29  7:40   ` Andreas Schwab

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