From: TGAPE! <tgape@cyberramp.net>
To: gjb@cs.washington.edu (Greg Badros)
Cc: schaefer@brasslantern.com, unpingco@mpl.ucsd.edu,
zsh-users@math.gatech.edu
Subject: Re: is text file?
Date: Mon, 29 Sep 1997 21:28:33 +0000 (GMT) [thread overview]
Message-ID: <199709292128.VAA10542@dal-tsa12-29.cyberramp.net> (raw)
In-Reply-To: <qrrn2kw84uo.fsf@demille.cs.washington.edu> from "Greg Badros" at Sep 29, 97 09:25:19 am
Greg Badros wrote:
>
> "Bart Schaefer" <schaefer@brasslantern.com> writes:
>
> Perhaps it would seem less hacky if there were a general
> user-programmable glob feature that would call a function on each
> filename and accept that file for the glob iff the function returns
> 0. Then the way that you determine what kind of file a filename points
> to is not part of the shell, but the nice glob modifier interface is
> permitted.
It thusly degenerates to the case of running a find operation which execs
file on all of your files, and greps out binaries & data. Nothing really
gained, execept baggage.
>> An approximation might be (with extendedglob set):
>>
>> % ls **/*~*(${~${(j/|/)fignore}})(.)
>>
>> That is, all plain files that do not have extensions listed in `fignore'.
>> You could change (.) to (.^*) to omit executables, but that would also
>> omit most shell scripts.
>>
>> (Somebody tell me why the extra ${~...} is needed in that expression.)
>
> I'm fairly certain I'll never type such an incantation (how long did it
> take to dream it up? :-) ).
Leave wizard's school now. You don't have the potential. That
incantation is trivial compared to somethings I've done. Remember,
everything can be done as a perl one-liner. This can be translated into
a zsh command line. There's an emacs minor editting mode which already
does it, however.
Ed
(well, everything except testing links, rather than what they point to.
Or am I missing something? Please tell me I am; I've a tchell script
I don't want to admit to owning. Overly-complicated programs should
never be written in csh-family shells.)
next prev parent reply other threads:[~1997-09-30 2:49 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-09-28 22:31 Jose Unpingco
1997-09-29 0:06 ` Bart Schaefer
1997-09-29 16:25 ` Greg Badros
1997-09-29 17:44 ` Bart Schaefer
1997-09-29 21:28 ` TGAPE! [this message]
1997-09-30 3:53 ` Bart Schaefer
1997-09-30 16:19 ` Greg Badros
1997-09-30 18:56 ` Bart Schaefer
1997-09-30 20:02 ` Greg Badros
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