This week's Tcl-URL

QOTW:  "[E]xperience teaches us we are all less in control of our data
than we think."  Bryan Oakley

"[I]t is a fact about [modern, sane] fonts that the widths of their
digits are the same, even though you'd imagine an '8' to be wider than
a '1'."  Donal K. Fellows
                                     

    Creating LED widgets on a canvas is easy with Tk. No need to create
    a new item for each colour change, just reconfigure the existing one:
        http://groups.google.com/groups?th=affa7dd95e9cbad0&seekm=3DFEDD68.F8BBCE05%40sigos.de&frame=off
    
    Rendering mathematical equations on a Tk canvas. Arjen Markus works on a
    LaTeX-style renderer for TkLib:
        http://groups.google.com/groups?th=f57d9d0057afee18&seekm=3DFED324.E6F9C4EE%40wldelft.nl&frame=off
    
    C++ extensions - David Gravereaux has nice code to make integrating
    C++ and Tcl/Itcl easy:
        http://groups.google.com/groups?th=d5822bd3887adae8&seekm=19fsvugsf2v7ctb0irf7nncreohlohnpk1%404ax.com&frame=off
    
    Mixins/Ensembles - various methods of adding new subcommands to Tcl
    built-ins:
        http://groups.google.com/groups?th=5c1582ad498ead83&seekm=thi1d-8js.ln1%40burp.earthlink.net
    
    TIP 103: Argument Expansion Command kicks up a lively discussion.
    An area which has attracted controversy in the past:
        http://groups.google.com/groups?th=9e77d5836b06ab1b&seekm=slrnai1a8d.306.Andreas.Leitgeb%40pc7499.gud.siemens.at
    
    List semantics and the best way to deal with configuration files (good
    code snippets aplenty):
        http://groups.google.com/groups?th=9697f065e645d3f5&seekm=yfivg1y61yj.fsf%40triumf.ca
    
    TIP 122: Use tcl_{non,}wordchars Throughout Tcl/Tk:
        http://groups.google.com/groups?group=comp.lang.tcl&selm=pgpmoose.200212131959.28986%40despot.non.net
    
    Announcements:
    
    gnocl 0.5.4:
        http://groups.google.com/groups?th=4fbb452153b39502&seekm=3DFE9F6A.4050701%40jcom.home.ne.jp&frame=off

   Tim Baker's multi-column hierarchical listbox earns early applause.
       http://sourceforge.net/projects/tktreectrl
    
    a(Huge)Listbox 1.0:
        http://groups.google.com/groups?th=db15dc28752fa5bd&seekm=87r8chp4on.fsf%40vran.herceg.de&frame=off
    
    TclXML 2.5:
        http://groups.google.com/groups?group=comp.lang.tcl&selm=pgpmoose.200212100918.2723%40despot.non.net
    
    TimpleSQL 1.2:
        http://groups.google.com/groups?group=comp.lang.tcl&selm=pgpmoose.200212100925.2850%40despot.non.net
    
    TCLBridge 1.8.1 build 5271:
        http://groups.google.com/groups?group=comp.lang.tcl.announce&selm=pgpmoose.200212120749.17645%40despot.non.net
    
    mysqltcl version 2.1:
        http://groups.google.com/groups?group=comp.lang.tcl.announce&selm=pgpmoose.200212091332.28692%40despot.non.net
    
    Winsend 0.5:
        http://groups.google.com/groups?group=comp.lang.tcl.announce&selm=pgpmoose.200212090758.26708%40despot.non.net

Thanks to Arjen Markus for his Wiki-watching:
    The Wiki's recent pages page shows a lot of pages are being edited 
    for updated category and other information. So, the work of your
    chronicler has become difficult :) Here just a few gems that happened
    to cross his path:
    
    - There are a lot of graphical applications and extensions in Tcl/Tk,
      just browse around at <http://wiki.tcl.tk/2389>
    
    - A little progress meter has shyly made its way to the Wiki,
      <http://wiki.tcl.tk/5953>.
    
    - Data structures can range from the very small to the very large,
      as discussed in <http://wiki.tcl.tk/5894>. Two related pages
      are <http://wiki.tcl.tk/5042> and <http://wiki.tcl.tk/2608>.
    
    - Besides data structure, one might want data types, well, even
      that is provided for: <http://wiki.tcl.tk/5273>.
    
    And besides the recent pages, see the Starkit Distribution Archive
    <http://wiki.tcl.tk/4543> as well as the CANTCL page
    <http://wiki.tcl.tk/1961> if you are looking for ready-and-run
    applications or packages.
      
  
Everything you want is probably one or two clicks away in these pages:

    The "Welcome to comp.lang.tcl" message by Andreas Kupries
        http://www.purl.org/net/tcl-welcome

    Larry Virden maintains a comp.lang.tcl FAQ launcher
        http://www.purl.org/NET/Tcl-FAQ/

    Brent Welch maintains "The Tcl Developer Xchange", a highly
    organized resource center of documents and software with
    provisions for individuals to "set up a link to your software
    and update ... as you release new versions."
        http://www.tcl.tk/resource/
    The Xchange sponsor also keeps info to convince your boss Tcl
    is a good thing
        http://www.tcl.tk/scripting/      

    The Tcl'ers Wiki is a huge, dynamic, collaboratively edited repository
    of documentation, examples, tutorials and pontifications on all things Tcl.
        http://wiki.tcl.tk/0
    For the ideal overview of the topics about Tcl most likely to
    interest a newcomer, see "Arts and Crafts ..."
	http://wiki.tcl.tk/969

    ActiveState Tools maintains a Cookbook of Tcl recipes
	http://aspn.activestate.com/ASPN/Cookbook/Tcl

    NeoSoft has a comp.lang.tcl contributed sources archive
        http://www.neosoft.com/tcl/contributed-software/

    Cameron Laird tracks many Tcl/Tk references of interest
        http://starbase.neosoft.com/~claird/comp.lang.tcl/

    Cetus Links maintains a Tcl/Tk page with verified links
        http://www.cetus-links.org/oo_tcl_tk.html

    Google Groups archives comp.lang.tcl.announce posts
	http://groups.yahoo.com/group/tcl_announce/   

Previous - (U)se the (R)esource, (L)uke! - messages are listed here:
  http://purl.org/thecliff/tcl/url.html
--in principal.  In spring 2001, though,
  http://www.ddj.com/topics/tclurl/
  http://tcl.activestate.com:8004/tclurl/
are more consistently up-to-date.  A fourth possibility is                 
  http://groups.google.com/groups?oi=djq&as_q=+Tcl-URL!&as_ugroup=comp.lang.tcl  

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

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