maniac@cleanhead.cs.unlv.edu (Eric J. Schwertfeger) (03/10/90)
I have a few questions to ask about TCL, and a few possibly invalid observations to make. First of all, is there any way to get a copy of the paper that describes TCL? I'd like to see it to get a better idea of what it is cabable of. Second, it is my impression that programs with TCL interfaces talk directly to each other, rather than through an intermediate, as with ARexx. While this is good as far as speed goes, I do see one limitation to this. I'm currently working on a mini-database with an ARexx interface, and my script interpreter will pass any unknown functions to ARexx, much like DME does. Now, I don't have to know which host or library defined the function, so long as the library or host has been identified to ARexx as such. Can this be done with TCL? Finally, I don't see why somebody couldn't write a set of library functions to implement a command interpreter similar to that of TCL. Two functions to add and remove commands, and one or more to do the actual stuff of checking the message port, etc. I am interested in TCL, but for now I think I'll stick with ARexx. Eric Schwertfeger, maniac@jimi.CS.UNLV.EDU
deven@rpi.edu (Deven T. Corzine) (03/10/90)
On 9 Mar 90 21:36:27 GMT,
maniac@cleanhead.cs.unlv.edu (Eric J. Schwertfeger) said:
Eric> I have a few questions to ask about TCL, and a few possibly
Eric> invalid observations to make. First of all, is there any way to
Eric> get a copy of the paper that describes TCL? I'd like to see it
Eric> to get a better idea of what it is cabable of.
Since there seems to be a good deal of interest here, this seems
warranted. Here is the postscript source for the Usenix paper on Tcl
from the Winter 1990 Usenix Conference Proceedings.
The entire Tcl distribution is available for anonymous FTP from
ucbvax.berkeley.edu in /pub/tcl.tar.Z and it includes this postscript
source form of the Usenix paper.
Deven
#!/bin/sh
# This is a shell archive. Remove anything before this line, then unpack
# it by saving it into a file and typing "sh file". To overwrite existing
# files, type "sh file -c". You can also feed this as standard input via
# unshar, or by typing "sh <file", e.g.. If this archive is complete, you
# will see the following message at the end:
# "End of shell archive."
# Contents: usenix.ps
PATH=/bin:/usr/bin:/usr/ucb ; export PATH
if test -f 'usenix.ps' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'usenix.ps'\"
else
echo shar: Extracting \"'usenix.ps'\" \(118900 characters\)
sed "s/^X//" >'usenix.ps' <<'END_OF_FILE'
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X%%Creator: mace.Berkeley.EDU:ouster (John Ousterhout,525E,0865,5476132)
X%%Title: stdin (ditroff)
X%%CreationDate: Fri Dec 22 15:50:55 1989
X%%EndComments
X% @(#)psdit.pro 1.3 4/15/88
X% lib/psdit.pro -- prolog for psdit (ditroff) files
X% Copyright (c) 1984, 1985 Adobe Systems Incorporated. All Rights Reserved.
X% last edit: shore Sat Nov 23 20:28:03 1985
X% RCSID: $Header: psdit.pro,v 2.1 85/11/24 12:19:43 shore Rel $
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X% Changed by Edward Wang (edward@ucbarpa.berkeley.edu) to handle graphics,
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X7 f
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X1 f
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X7 f
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X7 f
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X1 f
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X7 f
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X1 f
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X7 f
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X1 f
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X7 f
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X1 f
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X7 f
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X1 f
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X7 f
X720 1926 0.1992(Tcl_CreateCommand)AN
X1 f
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X7 f
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X1 f
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X1 f
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X7 f
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X1 f
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X7 f
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X7 f
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X7 f
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X1 f
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X1 f
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X7 f
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X7 f
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X1 f
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X7 f
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X1 f
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X7 f
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X7 f
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X1 f
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X7 f
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X1 f
X3464('s)X
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X2489 4389 MXY
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XDstroke
X1499 3749(\(h\))N
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X3886 MY
X19 -30 Dl
X-19 11 Dl
X-19 -11 Dl
X19 30 Dl
X2314 3537 MXY
X-19 30 Dl
X19 -11 Dl
X20 11 Dl
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X2489 4411 MXY
X19 -30 Dl
X-19 11 Dl
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X2839 3886 MXY
X19 -30 Dl
X-19 11 Dl
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X4 Ds
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X0 262 Dl
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X7 f
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X3 Dt
X2140 3537 MXY
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X2402 3362 MXY
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X2227 MX
X-87 0 Dl
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X1 f
X3 Dt
X-1 Ds
X3 f
X10 s
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X1 f
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X7 f
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X1 f
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X2926(,)X
X2970(1989.)X
X720 4461([8])N
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X1279(R.)X
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X1867(Manual)X
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X3179(February)X
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X920(Sun)X
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X1052(1987.)X
X3 f
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X
X14 p
X%%Trailer
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Xxs
END_OF_FILE
if test 118900 -ne `wc -c <'usenix.ps'`; then
echo shar: \"'usenix.ps'\" unpacked with wrong size!
fi
# end of 'usenix.ps'
echo shar: End of shell archive.
exit 0
--
Deven T. Corzine Internet: deven@rpi.edu, shadow@pawl.rpi.edu
Snail: 2151 12th St. Apt. 4, Troy, NY 12180 Phone: (518) 274-0327
Bitnet: deven@rpitsmts, userfxb6@rpitsmts UUCP: uunet!rpi!deven
Simple things should be simple and complex things should be possible.peter@sugar.hackercorp.com (Peter da Silva) (03/10/90)
In article <1585@jimi.cs.unlv.edu> maniac@cleanhead.cs.unlv.edu (Eric J. Schwertfeger) writes: > I have a few questions to ask about TCL, and a few possibly > invalid observations to make. First of all, is there any way to get > a copy of the paper that describes TCL? I'd like to see it to get > a better idea of what it is cabable of. It's in the package at "sprite.berkeley.edu:ftp/tcl.tar.Z". The only problem is that when I got it through BITFTP it got messed up somewhere around that part of the tarchive. If you get a good copy of the file "usenet.ps", perhaps you could post it to alt.sources. The rest of the documentation (what I could get) I recently posted to alt.sources, along with the System V version of TCL. > Second, it is my impression that programs with TCL interfaces > talk directly to each other, rather than through an intermediate, as with > ARexx. While this is good as far as speed goes, I do see one limitation > to this. I'm currently working on a mini-database with an ARexx interface, > and my script interpreter will pass any unknown functions to ARexx, much > like DME does. Now, I don't have to know which host or library defined > the function, so long as the library or host has been identified to ARexx > as such. Can this be done with TCL? Not currently. Of course you can always pass it through a TCL/REXX gateway. We're working on a resource manager for TCL that may serve the same purpose. In fact a bare TCL interpreter can serve the purpose, now that I think of it: send resource-manager proc whatever {args} [concat send $myname {$args}] So you can now send undefined commands to resource-manager. Or just leave the script interpreter out of your program altogether and let the user put this together. > Finally, I don't see why somebody couldn't write a set of > library functions to implement a command interpreter similar to that > of TCL. Sure. That's exactly what TCL is. A set of library functions that implements a command interpreter similar to (in fact identical to) that of TCL. Why do it again? > I am interested in TCL, but for now I think I'll stick with ARexx. -- _--_|\ Peter da Silva <peter@sugar.hackercorp.com>. / \ \_.--._/ I haven't lost my mind, it's backed up on tape somewhere! v "Have you hugged your wolf today?" `-_-'