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Date:      Fri, 15 Mar 1996 09:43:14 +1030 (CST)
From:      Michael Smith <msmith@atrad.adelaide.edu.au>
To:        frankd@yoda.fdt.net (Frank)
Cc:        msmith@atrad.adelaide.edu.au, freebsd-questions@FreeBSD.org
Subject:   Re: Book recommendations
Message-ID:  <199603142313.JAA09670@genesis.atrad.adelaide.edu.au>
In-Reply-To: <Pine.BSF.3.91.960314173833.182B-100000@Kryten.nina.com> from "Frank" at Mar 14, 96 05:47:37 pm

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Frank stands accused of saying:
> 
>> ...and in particular the TclX dialect.  This gives you easy GUI programming,
>> networking and just about everything (apart from fast math 8) that you could
>> possibly want in a language.  Being interpreted, it's also nice and easy
>> to work with.
> 
> Does being an interpreted language mean slow as molasses? If so, is there 

Not at all.  As with any language, your programming style can have a 
significant effect on the speed of your code, but unless you're engaging
in lots of numeric operations, Tcl is pretty quick.

> another relatively easy to learn alternative for programming in X without 
> a speed hit? Is it feasible to program for X using straight C? I take it 
> as a given that C is the way to go for text based programs. True?

Not necessarily.  One of the pleasant things about Unix is the staggering
plethora of languages available; if C doesn't spin your propellor, you've
only eliminated one of literally dozens of possibilities.

Another important thing about Tcl/Tk in relation to the first question;
from the start it was designed as a 'glue language' for large programs.
You write your low-level code in C and provide hooks to the Tcl interpreter,
and then write the top-level program flow control in Tcl.  This gives you
the best of both worlds; you can use C for its performance and complex
data structure support, and Tcl for its easy hackability and simple GUI
interface.

I'd really recommend a trip to http://www.sunlabs.com/research/tcl/, this
is the "official" tcl homepage, but it also contains links to a number of
other resources, including a large collection of discussions comparing 
Tcl and a number of other languages.  It makes for very interesting reading.

> Frank Seltzer

-- 
]] Mike Smith, Software Engineer        msmith@atrad.adelaide.edu.au    [[
]] Genesis Software                     genesis@atrad.adelaide.edu.au   [[
]] High-speed data acquisition and      (GSM mobile) 0411-222-496       [[
]] realtime instrument control          (ph/fax)  +61-8-267-3039        [[
]] Collector of old Unix hardware.      "Where are your PEZ?" The Tick  [[



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