Author Topic: Simple question (indefinite points)  (Read 7275 times)

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Notsober

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Re: Simple question (indefinite points)
« Reply #60 on: October 24, 2008, 05:56:02 PM »
...and exactly what do you mean by "always localize this routine"?

I can't necessarily run this routine from my lap  :-)

lol. all my routines are in the support folder...

T.Willey

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Re: Simple question (indefinite points)
« Reply #61 on: October 24, 2008, 06:02:06 PM »
He means to localize the error routine.

(defun c:Main (/ *error*)

(defun *error* (msg)
)

)

Above has the error routine localized.

(defun c:Main ()

(defun *error* (msg)
)

)

Above does Not have the error routine localized.
Tim

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Notsober

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Re: Simple question (indefinite points)
« Reply #62 on: October 24, 2008, 06:10:31 PM »
oh.. heh.





why won't this thread DIE already!? gah!

ronjonp

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Re: Simple question (indefinite points)
« Reply #63 on: October 24, 2008, 11:51:59 PM »
oh.. heh.





why won't this thread DIE already!? gah!

CAB was trying to edumacate you and you brought up the question? :-P

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CAB

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Re: Simple question (indefinite points)
« Reply #64 on: October 25, 2008, 12:07:11 AM »
...and exactly what do you mean by "always localize this routine"?

I can't necessarily run this routine from my lap  :-)

lol. all my routines are in the support folder...
When you don't localize the error function it takes over for the built in lisp error handler and stays that way until you (setq *error* nil) or another error handler which is not localized steps on this one.

So it is good practice to clean up after yourself environmentally speaking.

Although that error handler should not cause any problems many error routines attempt to reset environmental variables with program variables that have been clobbered & therefor you get the dreaded message "An error occurred inside the error handler"

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Notsober

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Re: Simple question (indefinite points)
« Reply #65 on: October 25, 2008, 10:44:07 AM »
thanks for the more *detailed* explanation... it was clear.

but I did understand T.Willey's explanation too... so it's all good  8-)