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1 5th November 20:35
john seal
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Default Dr. Dobb's Tcl-URL! - weekly Tcl news and links (Sep 15)

OOTW: "Tcl is like playdoh.. shape it, form it, never compile it.. You can
even bake it in your oven, if you like it and want to keep it." -- David

"There are no bad programming langu[ag]es, only bad programmers." -- Ala

POTW: TclSOAP 1.6.7 by Pat Thoyts. "This is a bugfix release. It clears
up a number or minor bugs and adds two new sample files for accessing the
Google and Babelfish SOAP interfaces."
Home page:

Text widgets do behind-the-scenes shenanigans to ensure that their
last line is always terminated. You may be surprised if you do
end-relative indexing based only on what *you* inserted!

An excellent thread on fileevents reading from possibly-blocked
pipes. Discusses the subtle distinction between blocked I/O and
a blocked pipe or process, and when to use [read] vs. [gets].
(Can you spot the interesting adjectival form of "latex"?)

It's a red-letter day for named colors!

Here's a good thing to know if you're handling events while the
mouse is down: events go to the original widget, even if the
mouse leaves it!

When is {<foo>} not the same as[list <foo>]?

PNG support in the core isn't quite to the TIP stage yet.

Thanks to Arjen Markus for his summary of recent Wiki activity:
Most of the pages that drew the attention of your chronicler this week
are fairly short: some describe packages, some have a short discussion

Here is the overview:

Packages, applications and short scripts:

- Simple illustration of how to generate a colour image,

- A vintage package for reading DXF files (yes, this is the 1993 one):

- Astronomers apparently are as fascinated by science fiction as anybody
else, why else should they come up with the name "ds9" for one
of their applications? <>

- APIC does vector graphics to create a nice little do***ent,

- And the last: Toucan, an IDE for Palm OS applications,
<>, has been updated.


- Do you need to store data in a compact way, this may help you decide:
- I guess global variables are here to stay, <>
- Musing over network programming, <http://wiki.tcl/tk/9851>, has led
to a varied discussion.

- Yes, a lot can be done in pure Tcl, even cryptography,

- And finally, a nice game of Reversi/Othello to illustrate not only the
game but also the model-view-control methodology,

Everything Tcl-related you want is probably one or two clicks away in these
The "Welcome to comp.lang.tcl" message by Andreas Kupries

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 do***ents 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 do***entation, 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 ..."

ActiveState maintains binaries distribution and development tools
along with a Cookbook of Tcl recipes

Cameron Laird tracks several Tcl/Tk references of interest

Cetus Links maintains a Tcl/Tk page with verified links

Google Groups archives comp.lang.tcl.announce posts

Previous - (U)se the (R)esource, (L)uke! - messages are listed here:

Suggestions/corrections for next week's posting are always welcome.

To receive a new issue of this posting in e-mail each Monday, ask
<> to subscribe. Be sure to mention "Tcl-URL!".
Dr. Dobb's Journal ( is pleased to participate in and
sponsor the "Tcl-URL!" project.

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