What is wrong with this code?

[djspits]

alias test=@echo %%@if[%%# eq 0,%%@full[%%_cwd],%%@full[%%1]]

If no args, the second branch gets executed. Why?
I'm looking to provide cwd as a default if nothing is passed to the alias.

Regards, DJ.

 

[Charles Dye]

Both sides are expanded, no matter whether the condition is true or false.

 

[Charles Dye]

The same is true of any function. All the arguments inside the square brackets will be expanded, before the function itself is evaluated. @IF is no different; the parser doesn't handle it differently.

 

[djspits]

Got it! Thanks, Charles.

 

[Charles Dye]

Here's your alias, turned inside-out:

alias test=`@echo %@full[%@if[%# eq 0,%_cwd,%1]]`

 

[MaartenG]

The same is true of any function. All the arguments inside the square brackets will be expanded, before the function itself is evaluated. @IF is no different; the parser doesn't handle it differently.

Thanks for the explanation! (I was not aware of this, although it is quite obvious (in hindsight :-) )

Does this mean that @IF is not suited for things like:
echo %@IF[_%everything%_ == _okay_, Perfect, %@exec[FixDisaster.exe]]
or is there some clever way to work around this?

 

[samintz]

You should use an IFF statement.

IFF %everything.==okay. Then
  Echo Perfect
Else
  FixDisaster
Endiff

 

[MaartenG]

You should use an IFF statement.

IFF %everything.==okay. Then
  Echo Perfect
Else
  FixDisaster
Endiff

Yeah, I'm "afraid", that this is the way to go. Thanks!

(Sorry, overlooked this post completely somehow ...)