On 20 Jun 2007, at 20:37, Björnke von Gierke wrote:
"Adding description for every unexpected behaviour is like trying to prevent a breach in a dyke by explaining to the water that it should go somewhere else. If the language would behave as expected, there would be less airquote & bug & airquote reports immediately (and less breaking dykes)."
Björnke, what you suggest would mean that the 'constant' keyword would then have a context-dependent meaning - needing a description of unexpected behaviour, so like many problems in life, it would be like trying to squash a balloon!
Also, consider that if interfering with the loop variable did not affect the loop, that would make 'repeat for each' a special case - also requiring a special description.
It's actually very simple : if you mess with loop variables, you will affect loop behaviour. This is not a hard idea to grasp, and ceratinly no harder than it is to grasp the idea of loops themselves.
You ask any non programmer who would like his own custom program, why they do not use programming languages.
Once you've rolled up your sleeves and started writing code (in any language), are you a programmer or a non-progammer?
Then think about how to change rev to make it easier for these people.
Ease of use is undoubtedly one of Rev's strengths, but remember that it's also used by professional developers, for whom speed of execution may be important (as it may be for non-professional developers, like me), and as I say, learning not to mess with loop variables is really not one of the harder lessons to learn in any language.
FWIW, when I first came to Rev from Hypercard, I also made this mistake, and resisted using the 'repeat for each' form until some kind soul on this list explained that the "LNN" in "repeat for each line LNN in someList" is indeed a loop variable, just like the "n" in "repeat with n = 1 to 20". Then I understood, and was able to boost the speed of my handlers by a large factor...
Best, Mark_______________________________________________ use-revolution mailing list [email protected] Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
