ARexx scripting: How to - Page 6

thomas · 20 December 2023, 06:55

That's how Rexx works. Every value without context is sent to the current ARexx host. If it encounters a function call without context, it executes the function and sends the result to the host. If you don't want the result to be processed as a host command, you have to put it into a context.

For example assign the return value to a variable

Code:

x = Delay(15)

or use the CALL keyword

Code:

call Delay(15)

thyslo · 20 December 2023, 08:18

Thank you Thomas, now it works

And thanks for the explanation, too. Although I've red the ARexx manual this information passed me by.

daxb · 20 December 2023, 14:07

IMHO it would be better to use "waitforport" instead of the delay() loop. You also get shorter code. See ARexxGuide2 for an how to use example.

thyslo · 21 December 2023, 06:14

Thanks, daxb, I'll have a look at that. I'm always interested in better readable code.

20 December 2023, 06:55	#101
thomas Registered User Join Date: Jan 2002 Location: Germany Posts: 7,001	That's how Rexx works. Every value without context is sent to the current ARexx host. If it encounters a function call without context, it executes the function and sends the result to the host. If you don't want the result to be processed as a host command, you have to put it into a context. For example assign the return value to a variable Code: x = Delay(15) or use the CALL keyword Code: call Delay(15)

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20 December 2023, 08:18	#102
thyslo Registered User Join Date: Apr 2018 Location: Germany Posts: 189	Thank you Thomas, now it works And thanks for the explanation, too. Although I've red the ARexx manual this information passed me by.

20 December 2023, 14:07	#103
daxb Registered User Join Date: Oct 2009 Location: Germany Posts: 3,304	IMHO it would be better to use "waitforport" instead of the delay() loop. You also get shorter code. See ARexxGuide2 for an how to use example.

21 December 2023, 06:14	#104
thyslo Registered User Join Date: Apr 2018 Location: Germany Posts: 189	Thanks, daxb, I'll have a look at that. I'm always interested in better readable code.

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