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1418 - A Golf Club Decision - Perl to Java
There are times that Java is the right language for an application and Perl is the wrong one - to the extent that investment in a rewrite is correct. But they are pretty rare. I was very disappointed to learn this week of a major company that is switching - not for technical reasons, but becau ....

1417 - What software version do we teach?
To go with the very latest - even if the customers don't have it in common use yet, or to stay with older and well loved versions even though there is a new model out? A thorny question and one I'm addressing at the moment for the 2008 brochure. I write ... """With a few notable exceptions, Open ....

1416 - Good, steady, simple example - Perl file handling
I write a lot of demonstration pieces, and there's always a need for a balance. Spike solutions / proof of principle and concept work well in front of a class. But then they are subject to major criticism due to a lack of robustness, and for security reasons, if they are published without comment ....

1415 - Better technology makes for longer commutes?
5% more people now have a commute that takes over an hour ago than was the case in 1996. So says the radio this morning. Why should that be in a country when we're improving technology and supposedly can move things quicker and more efficiently generation by generation? The radio highlighted tra ....

1414 - What we teach - expained for the non-technical
"Explain each of the subjects that we teach in a short paragraph written for mangers and booking / administrative people who aren't into the technology themselves" ... a challenge from Lisa which I have spend some time on today. And as I'm giving a Perl course tomorrow, what better way to get back ....

1413 - The little gestures that can really count
I admired the responsiveness of the canteen in the Cambridge office I was in this week just gone. I was running two courses thought the week, and the second group seems to be heavier drinkers (of coffee!) than the first - indeed, I popped into the canteen on Thursday morning and asked for a topup of ....

1412 - Sparse and Greedy matching - Tcl 8.4
Problem Analysis Once you have done a sparse or greedy count, all your following counts will also be sparse or greedy - this is a well documented bug in Tcl 8.4! Reminder ... .* is a greedy match - any character and AS MANY AS POSSIBLE .*? is a sparse match - any character but AS FEW AS POSSIBLE s ....

1411 - Buffering of inputs to expect, and match order
If you're using the expect command to wait for one of a series of inputs within your expect program, information will be checked in the program's internal buffers inthe following order: a) Any string that matches expect_before will be found b) Matches to each of the possible patterns in expect in t ....

1410 - Tcl / regsub - changing a string and using interesting bits
Regexp matches a string to a regular expression, and regsub goes one further in that it replaces the found string with something else, saving the transformed output into a new variable. But what if I want the output pattern to include part of the string that was matched? I can refer to the "inter ....

1409 - What is Expect?
Expect is an extension to the Tcl language which provides three key new commands - spawn which lets you start up another process, send which lets you send information to that process and expect through which you can receive back responses from that process. For the majority of users of Tcl, Expect ....

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