|| ||Cameron Laird <tcl-url-AT-phaseit.net>|
|| ||"Tcl-URL distribution" :;|
|| ||Tcl-URL! - weekly Tcl news and links (Aug 28)|
|| ||Thu, 28 Aug 2008 16:26:51 +0000|
QOTW: "clt is just marvelous - if it didn't exist already, it needed
to be invented." - Helmut Giese
"In general, an O(N) algorithm suddenly switching to O(1) in constant
space is suspect ;-)" - Alexandre Ferrieux
What will you hear at the Tcl 2008 Conference? Ron Fox et al.
have already put the abstracts online:
Donal, Koen, and others analyze a situation of the performance of variable
access that involves something deeper than mere Lisp envy:
Quick: what's the value of [string is integer 09]?
Thanks to Arjen Markus for his weekly summary of Wiki action:
Funny how some topics seem to be "in vogue" on the Wiki. This week
we can see a lot of pages on "coroutines". But do not despair:
a lot of pages on sundry other subjects as well.
What coroutines are all about ...
- Two pages on coroutines should help to get an idea of their use:
- <http://wiki.tcl.tk/20662> introduces the concept of
coroutines and closures, using standard Tcl
- <http://wiki.tcl.tk/21532> elaborates the use of coroutines
in the context of Tk GUIs and fileevents.
- A lightweight multithreading facility which could be used
for coroutines too is at <http://wiki.tcl.tk/15248>
You did not know this, right?
- Tcl has a well-hidden set of commands, commands that are
strange, experimental, etc. They are now revealed at
- One of them is "disassemble": get some insight in the
workings of the Tcl byte code compiler and engine:
- But the "new" apply command can also be used for
yet another object oriented system: <http://wiki.tcl.tk/21514>
- Printing extra output is an age-old debugging method. And
this page shows it can be done so elegantly ...
- If you are interested in artificial intelligence, you may
find the links on this personal page of interest:
- And for just one AI technique, genetic algorithms, you may
find the interface to a particular library useful:
- Can we improve the console in tclsh and wish? What ideas
do you have about it? <http://wiki.tcl.tk/21523>
Everything Tcl-related you want is probably one or two clicks away in these
The "Welcome to comp.lang.tcl" message by Andreas Kupries
comp.lang.tcl is a crucial resource for Tcl practitioners.
An interesting perspective on its traffic appears at
The Tcl Developer Site is Tcl's "home base".
Larry Virden maintains a comp.lang.tcl FAQ launcher.
The Tcl Developer Xchange is a highly organized resource center
of documents and software with provisions for individuals to
maintain references to their own software:
The TDX sponsor, ActiveState, also keeps info to convince your
boss Tcl is a good thing
The Tcl'ers Wiki is a huge, dynamic, collaboratively edited repository
of documentation, examples, tutorials and pontifications on all things
For the ideal overview of the topics about Tcl most likely to
interest a newcomer, see "Arts and Crafts ..."
There's also a high-quality Wikibook on Tcl:
ActiveState maintains binaries distribution and development tools
along with a Cookbook of Tcl recipes
"La Gazette du TÃ©cleux" is an important monthly publication.
deli.cio.us presents an intriguing approach to reference commentary.
It already aggregates quite a bit of Tcl intelligence.
Cameron Laird tracks several Tcl/Tk references of interest (but
needs to validate many of the links).
Years ago, Cetus Links maintained a Tcl/Tk page with verified links
"Yahoo! Groups" archives comp.lang.tcl.announce posts--even
though clta itself is dormant.
We're working on more useful archives of past installments. In the
meantime, an alternative is
Suggestions/corrections for next week's posting are always welcome.
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<email@example.com> to subscribe. Be sure to mention "Tcl-URL!".
Phaseit, Inc. (http://phaseit.net) is pleased to participate in and
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