From: Zefram <zefram@dcs.warwick.ac.uk>
To: schaefer@brasslantern.com
Cc: zefram@dcs.warwick.ac.uk, fclim@singnet.com.sg,
zsh-workers@math.gatech.edu
Subject: Re: Autoloading of compctl from dbm database file.
Date: Sun, 1 Dec 1996 14:02:51 +0000 (GMT) [thread overview]
Message-ID: <9971.199612011402@stone.dcs.warwick.ac.uk> (raw)
In-Reply-To: <961130151728.ZM16366828@srf-75.nbn.com> from "Bart Schaefer" at Nov 30, 96 03:16:26 pm
>Seems to me that this idea has "module" written on it, in large flashing
>purple neon letters.
That it does. But autoloading will require some changes to the base
code anyway.
>Compctls aren't very expensive to store either, are they? The slow
>part of loading compctls and functions is parsing. If we're going
>to introduce a database, we might as well also introduce a binary
>storage format and put pre-"compiled" functions, compctls, etc. in
>there. Using a database just to store text that zsh then has to parse
>and execute anyway doesn't seem very helpful.
True. Interpretation of byte-compiled compctls could be done entirely
in a module. And if we're going to abandon autoloading, there's no
real point in using a database. How about an interface like
% compctl -L exec
compctl -l '' exec
% bcompctl -L exec
bcompctl '35!^Az^@^@^@' exec
% bcompctl '35!^Az^@^@^@' command
% compctl -L command
compctl -l '' command
That is, bcompctl does the same job as compctl, but using a byte-
compiled form instead of the normal options. "bcompctl -L > file"
could be used to save byte-compiled compctls in a form that can be
sourced quickly later. The challenge is to come up with a binary form
of compctls that is architecture- and version-independent, and can be
turned into the internal form rapidly without risking a crash.
This is getting pretty far from the original idea of a database.
-zefram
next prev parent reply other threads:[~1996-12-01 14:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-11-30 13:31 Fung-Chai Lim
1996-11-30 16:40 ` Zefram
1996-11-30 23:16 ` Bart Schaefer
1996-12-01 12:55 ` Fung-Chai Lim
1996-12-01 14:02 ` Zefram [this message]
1996-12-01 17:41 ` Bart Schaefer
1996-12-01 18:08 ` what should compctl's look like? Richard Coleman
1996-12-01 18:54 ` Zefram
1996-12-01 18:38 ` Autoloading of compctl from dbm database file Zefram
1996-12-02 13:23 ` Fung-Chai Lim
1996-12-01 13:22 ` Fung-Chai Lim
1996-12-01 14:17 ` Zefram
1996-12-01 15:38 ` Fung-Chai Lim
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