Pass an expression as function argument

[dotm]

Basically I would like to provide a drop-in replacement for

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MsgBox, %foo%, %bar%

occurrences with something like

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Log(...)

...

Log(val) {
	global LOG_LEVEL
	If LOG_LEVEL
		MsgBox, %val%
}

How can an expression be provided as function argument?

I've had to do this previously with ugly workaround

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output = %foo%, %bar%
Log(output)

FWIW, AHK version is 1.1.08.

[Xtra]

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Log(foo . "`," . bar)

[dotm]

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Log(foo . "`," . bar)

Thank you. For now I'm trying to avoid this if possible. Is there no way to save % expressions in their current state? I've intended to just replace MsgBox/ToolTip strings with Log via regexps.

[Xtra]

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Log(foo,bar)

...

Log(val1,val2) {
	global LOG_LEVEL
	If LOG_LEVEL
		MsgBox, %val1% %val2%
}

[guest3456]

Code: Select all

Log(foo . "`," . bar)

Thank you. For now I'm trying to avoid this if possible. Is there no way to save % expressions in their current state? I've intended to just replace MsgBox/ToolTip strings with Log via regexps.

commands such as MsgBox don't accept expressions unless you specifically FORCE an expression. your current code doesn't use expressions, it uses literal text in which variables are de-referenced via %%s

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MsgBox, %foo% and %bar%          ; literal text
MsgBox, % foo . " and " . bar       ; forced expression parameter

function parameters always expect expressions, and therefore they don't need the single % to force the expression:

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Log(foo . " and " . bar)

if you want a complete drop in replacement, you'd have to use AHK v2 where you can call user-defined functions with Command syntax. for example:

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Log, %foo% and %bar%

Log(param)
{
   MsgBox, %param%
}