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From: Andy Moreton <andrewjmoreton@gmail.com>
To: emacs-devel@gnu.org
Subject: Re: list-print-separator
Date: Tue, 26 Apr 2011 13:52:03 +0100	[thread overview]
Message-ID: <vz1sjt5rx8s.fsf@gmail.com> (raw)
In-Reply-To: 878vuyj6gd.fsf@lifelogs.com

On Mon 25 Apr 2011, Ted Zlatanov wrote:

> On Mon, 25 Apr 2011 22:05:43 +0100 Andy Moreton <andrewjmoreton@gmail.com> wrote: 
>
> AM> On Mon 25 Apr 2011, Stefan Monnier wrote:
> SM> Hmm... I wouldn't try to compare the speed of `print' with that of `pp'
> SM> since they do very different amounts of work and are implemented in
> SM> languages whose performance is very different, but there's clearly room
> SM> for improvement in pp's speed.
>>>> I want to print out a large ELisp data structure prettily.  The Gnus
>>>> newsrc.eld, for example, or the Gnus registry hashtable.  I'll use
>>>> whatever makes it happen as fast as possible.
>>> 
>>> The newsrc.eld has never been pretty and it's never been a problem, AFAIK.
>>> Not sure what's the "Gnus registry", so I can't comment on that.
>
> AM> I use somthing like this for a prettier newsrc.eld:
>
> AM> (add-hook 'gnus-save-quick-newsrc-hook
> AM>           (lambda ()
> AM>             (save-excursion
> AM>               (goto-char (point-min))
> AM>               (save-match-data
> AM>                 (while (re-search-forward "(\\\"\\| ((\\| (nn" nil t)
> AM>                   (replace-match "\n  \\&" t)))
> AM>               (delete-trailing-whitespace))))
>
> AM> It may not be perfect, but it does make it a great deal more readable.
>
> Me too, but that doesn't work for new users, it relies on regular
> expressions, and it's slow.  My suggestion for the above was basically
> to make `list-print-separator' "\n \\" but I will instead work on `pp'
> as Stefan has requested.

New users may have difficulty with regexps, so why not just do this
inside gnus anyway ? The regexp loop is pretty simple , and I've never
noticed it being slow. Tweaking `pp' is useful too though.

    AndyM





  reply	other threads:[~2011-04-26 12:52 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-06 10:59 entry separator for printing hashtables Ted Zlatanov
2011-04-21 23:17 ` list-print-separator (was: entry separator for printing hashtables) Ted Zlatanov
2011-04-24  4:47   ` list-print-separator Stefan Monnier
2011-04-25  1:38     ` list-print-separator Ted Zlatanov
2011-04-25 12:41       ` list-print-separator Stefan Monnier
2011-04-25 12:54         ` list-print-separator Ted Zlatanov
2011-04-25 14:51           ` list-print-separator Stefan Monnier
2011-04-25 15:01             ` list-print-separator Ted Zlatanov
2011-04-25 15:37               ` list-print-separator Stefan Monnier
2011-04-25 15:59                 ` list-print-separator Ted Zlatanov
2011-04-25 16:55                   ` list-print-separator Thierry Volpiatto
2011-04-25 17:28                     ` list-print-separator Stefan Monnier
2011-04-25 17:55                       ` list-print-separator Eli Zaretskii
2011-04-25 18:35                         ` list-print-separator Stefan Monnier
2011-04-25 21:05             ` list-print-separator Andy Moreton
2011-04-25 22:45               ` list-print-separator Ted Zlatanov
2011-04-26 12:52                 ` Andy Moreton [this message]
2011-04-26 12:55                 ` list-print-separator Stefan Monnier
2011-04-26 15:23                   ` list-print-separator Ted Zlatanov

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