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4209 - Lists in Tcl - fundamentals in a commented source code example
When I'm writing code demonstrations during class, they usually start off tidy and then get a bit scruffy as I add things in to answer delegate questions. For once last week, a Tcl list demonstration didn't get too untidy, so I give it you here with comments about what each few lines does.   ....

4208 - Tcl + Tk (Wish) - an introduction and revision example
Whenever I teach Tcl with Tk, I'm delighted to be reminded how easy it is to put together a graphic user interface (GUI) with Tcl. They may not be the world's prettiest, but they're quick, straightforward and functional. And so it was on the final day of our Tcl Programming course last week, when I ....

4207 - Exception handling in Tcl
Exceptions are a wonderful fail safe way of trapping errors in most modern programming languages. Although the natural way for a newcomer to programming to handle unusual situations is to test for each possible situation, that becomes a guessing game trying to work out everything that may happen, an ....

4206 - Writing the perfect program in Tcl?
I'm going to disappoint you... there's no such thing as the perfect program. But when I'm writing an answer to a class exercise and showing a sample, I have to make sure it's to a high standard - and that means at least: • Well commented • Using good variable names • Avoiding repetiti ....

4205 - Regular Expression Substitution - Tcl
regexp matches regular expressions in TCL, and it will return the latest match into a series of variables if you specify their names. regsub matches and replaces... not quite such a common requirement, and perhaps something I haven't blogged about in the past.   set newstory [regsub blue ....

4204 - With the Shpigs and Donkeys
At Happy Donkey Hill... a rare weekend away. Contestants from our "Four in a Bed" experience all met at The Daffodil last night   And this morning we went around to see the other animals - more than just donkeys         Off for Sunday lunch in a few minutes ....

4203 - A weekend away - Four in a Bed returns to Happy Donkey Hill
An all-too-brief weekend away. We're staying at Happy Donkey Hill - "Four in a Bed" contributors - with other contributors in the other self catering units. Happy Donkey hill... setting off for a day   at New Quay   and at Aberaeron   then back to Happy Donkey Hill ....

4202 - Excellent Railfuture conference, but some setup lessons
When I attend events these days, I take a professional look at how they're organised - from the presentation right through to the back-room issues. I was in the town hall in Oxford yesterday for the Railfuture annual conference and first and foremost it was great to see so many people (147, I unders ....

4201 - Looking to the future at Melksham Station
I am posting this, initially, as a purely personal analysis rather than official statement or policy of any sort. A Station Planning group has been set up with a strong elected chair, and this is informational to that group. And we have a meeting with the various departments of Wiltshire Council a w ....

4200 - Endorsed Perl, Python and PHP training - Tcl, Lua, Ruby and C too!
Updating my LinkedIn profile ... I notice I'm well endorsed for the Open Source languages starting with "P" ... (good job really, as I'm running training courses on those subjects!) • Python courses next month • Perl the month after • and PHP the month after that... See full cour ....

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