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October 11, 2004
Tcl-URL! - 2004/10/11

Pascal Scheffers
Want to keep up on the latest in Tcl? There's no better way than subscribing to "Dr. Dobb's Tcl-URL!: The Weekly Guide to Tcl Resources." These weekly postings will keep you up-to-date on the latest conferences, papers, releases, links, and more core information about Tcl. DDJ is proud to be associated with the Tcl-URL! team that launched this valuable project.
tclurl

Thanks to John Seal for his help preparing this week's digest.

QOTW:

"Either you fight against the differences or you embrace them."—Bryan Oakley, on Tcl's character

"Don't guess, measure."—Donal K. Fellows

POTW:

"Kiwi is a graphic application which displays ... trace logs." Keywords: real-time, portable, pure-Tk, ...
http://rtportal.upv.es/apps/kiwi/

  • If you want an HTTP client connection with keep-alive, you need http version 1.1. The core http package doesn't support this, but tclsoap does.
    http://groups.google.nl/groups?th=2cb811b38af89ede
  • If you want to compile a Tcl application, that is turning readable Tcl code into bytecodes, your best bet is Tcl Dev Kit. If you don't mind using Tcl 8.3 the older TclPro may still be servicable for you.
    http://groups.google.nl/groups?th=ba3356f7b80ecadd
  • Although Tcl is thread-safe, using it always seems to reveal the subtle ways threading can go wrong.
    http://groups.google.nl/groups?th=48e036477d4784ba
  • Who said comp.lang.tcl is restricted to Tcl? It is also a fine place to learn a bit about C and why Tcl is more convenient than C.
    http://groups.google.nl/groups?th=da1397e0f5d3c5a0
  • Discovering the location of 'My Documents' is not very hard. It is important to get it right however, as it may not even be called 'My Documents' but something like 'Mijn Documenten' or 'Mes Documents'.
    http://groups.google.nl/groups?th=12241daf19129128
  • A lot of commands have interesting, but mostly harmless peculiarities. [array] is one of them.
    http://groups.google.nl/groups?th=a40f9c1ea229af41
  • Want to save to save the contents of a [canvas] in an image file?
    http://groups.google.nl/groups?th=7e264aee307da289
  • Run a python script from Tcl? It is probably simpler than you thought.
    http://groups.google.nl/groups?th=e86c366ee0c11b53
  • How do you convert a user entered string into a correct call to [exec]?
    http://groups.google.nl/groups?th=75c33835aac525aa
  • And finaly, using [tk_messageBox] right before an [entry] widget has a subtle buglet, with a simple work around.
    http://groups.google.nl/groups?hl=nl&lr=&th=8e569a5e06506314

    Thanks to Arjen Markus for his report from the Wiki:

    Awesome, the variety in subjects of the pages that are created, updated and corrected each week! You Wiki chronicler tries, as always, to do his best to sieve out a handful of them on the basis of a completely arbitrary decision process ...

    Record whatever you can

  • No time to listen to the radio? Just record the programme with Snack:
    http://wiki.tcl.tk/8583
  • Ever wonder what you are doing all the time behind your keyboard, just wasting that time? Find out by taking snapshots: http://wiki.tcl.tk/12576
  • So your log files grow endlessly? No problem - just rotate them!
    http://wiki.tcl.tk/12612 shows how

    People pages

  • The French Wiki has an interesting discussion going on - http://wfr.tcl.tk/746: how to teach children how to program and what programming environment would be appropriate. It is akin to the English page http://wiki.tcl.tk/9058, but even more practical.
  • If you go abroad, maybe these fellow Tclers can help:
    http://wiki.tcl.tk/12591
  • Here is a little memory game with the amuzing feature that you play with the photos of some well-known Tclers: http://wiki.tcl.tk/9279

    Faits divers

  • This interesting idea deserves more attention: http://wiki.tcl.tk/12523 discusses an alternative way to distribute Tcl-only extensions. If only there was a reasonable solution for the docs ....
  • What a nice idea, building your own wee little window manager ... http://wiki.tcl.tk/12608
  • In the summary of a week that saw so many mathematically-oriented pages added, at least one should be mentioned: http://wiki.tcl.tk/12616 Quaternions are the four-dimensional cousins to complex numbers. It is up to you to see if they are really useful, but there are some surprising areas ...
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