Um... so if you edit the script so that $mode is set to something other than "running", the loop will execute just once, and the script exits; but if you edit the script so that $mode is set to "running", the script loops indefinitely until you kill it (^C or whatever). And that's the intended design?

I would have expected that either (a) the value assigned to $mode would depend on @ARGV (or %ENV, or some other external input), or (b) there would be something inside the loop that could change the value of $mode, or else (c) each time you edit the script to change its behavior, rather than editing a variable assignment, you would just edit the loop condition -- e.g. do {...} while(0); vs. do {...} while(1);, or something to that effect. (Note that the former "do" block will execute exactly once, whereas the block in while(0){...} never executes.)

As it is, I tend to share muba's puzzlement.

(updated to fix spelling)

In reply to Re^3: how to loop by graff
in thread how to loop by rsiedl

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