query for large object display

[Ben Shoemaker]

Rodney,

Thanks for your quick reply!  Unfortunately, that didn't seem to work for
me.  I added the lines below to my .emacs file and when I restarted xemacs
it complained:

Warning: reference to free variable filename
Warning: assignment to free variable filename

I went ahead and tried typing the name of a large object, but again it
hung up my xemacs.

Any ideas what I'm doing wrong?

--Ben

On Tue, 15 Jan 2002, Rodney Sparapani wrote:

> Ben:
>
> Not by default.  But, I run into this problem all the time so I have the
> following in my .emacs:
>
> (defvar big-file-limit 400000)
>
> (defadvice find-file (before huge-file-protection activate)
>   (let* ((big-file-list (file-attributes filename))
>          (big-file-size (nth 7 big-file-list)))
>
>   (if big-file-list
>      (progn
>       (if (or (equal big-file-size -1) (> big-file-size big-file-limit)) (progn
>         (shell-command (concat "head -10000 " filename " > " filename "00"))
>       (message "WARNING: only showing first 10000 lines of %s." filename)
>       (setq filename (concat filename "00"))))))
> ))
>
> Rodney
>
> >Date: Tue, 15 Jan 2002 11:03:25 -0500 (EST)
> >From: Ben Shoemaker <shoemake at ncbi.nlm.nih.gov>
> >X-X-Sender: shoemake at scarecrow
> >To: ess-help at stat.math.ethz.ch
> >Subject: query for large object display
> >MIME-Version: 1.0
> >
> >
> >Hi,
> >
> >I use ESS version 5.1.19 in xemacs 20.4 and am very happy with it.
> >Occasionally, however, I type an object's name and forget to explore first
> >if it's a large object.  If it is, it causes xemacs to freeze up,
> >sometimes indefinitely while it's trying to dump all of the data to the
> >buffer.  Is there a variable to set which would query yes/no (or simply
> >refuse to do it) if the object is beyond a certain size?
> >
> >Thanks in advance,
> >
> >Ben
> >
> >
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>
> Rodney Sparapani              Medical College of Wisconsin
> Sr. Biostatistician           Patient Care & Outcomes Research (PCOR)
> rsparapa at mcw.edu              http://www.mcw.edu/pcor
> Was 'Name That Tune' rigged?  WWLD -- What Would Lombardi Do
>

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