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3420 - Making best use of the new enthusiasm for Melksham
Wanted - keen, enthusiastic people to drive Melksham forward into the future. And wanted - those people working together to make us a better community in terms of success, prosperity, greenness, life quality, enjoyability. We have a lot of enthusiastic people and I'm delighted to read in various l ....

3419 - Data that we use during our training courses, and other training resources
When you come on a training course with Well House Consultants, you leave with a thorough set of notes covering the topics on your course. And within those notes you'll find plenty of source code examples illustrating each topic. Rather than type in the examples in your notes to try them later, you ....

3418 - Tcl packages, pkg_mkIndex, pkgIndex.tcl -what are they and why use them.
In the previous article [here], I wrote about namespaces and how - as our program grows - we need to keep named pieces of code and globally accessible variable in their own groups. And we do so using a structure that's very much like family names and forenames. As our program grows, we also need t ....

3417 - What is a namespace and why do we need them?
We name variables. We do it so that we can identify specific pieces of data by a key, rether than have to give some longer sort of identification description when referring to them. We don't refer to "the patriarch of the household" = we refer to Zeb. And we refer to Esther, John and Olivia, Jason ....

3416 - Storing Tcl source code encoded, and running via your own C program
Tcl is a language. And Tcl is also a C library. How's that? Tcl originates from a requirement to provide a taioring capability within C programs that could be accessed in a program-like style. And the program-like style that was implemented actually had the full capabilities of a programming langu ....

3415 - User defined sorting and other uses of callbacks in Tcl and Tk
When I output a table of results, I usually want it to be sorted in some way. In Tcl, I can use lsort to sort a list - there's an example of it running in a default way [here]. However, there's often a need to order records according to a non-default algorithm, and there are switches such as -inte ....

3414 - Passing back multiple results in Tcl - upvar and uplevel
What's the effect of having a meal? There are many. "You're not hungry any more" is the obvious answer, but also "there's washing up to do", "there's a gap on the shelves" and so on. And yet when programming with an assignment statement (or a set command in Tcl - I am running a Tcl course this we ....

3413 - If its Sunday, must it be Weymouth?
I've been to Weymouth five or six times over the last two months - providing an information source to passengers travelling from the TransWilts stations of Swindon, Chippenham and Melksham, and importantly to help them find the right train back in the evening. Frequent rail travellers such as myse ....

3412 - Handling binary data in Perl is easy!
Perl can handle binary data just as easily as ASCII text - but YOU - if you're the programmer - must understand the format of the data that you'll be working with. With binary data it's every bit as important to get the right bytes in the right places as it is to get the appropriate separators betw ....

3411 - Single and double quotes strings in Perl - what is the difference?
In Perl, there's usually more than one way of doing it ... If you're writing a string of text into your program, your first possibility is to use single quotes - in which case you're writing a literal string with everything between the single quote chartacters included exactly in the string. And yo ....

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