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-   -   Exit VBScript (http://www.kinook.com/Forum/showthread.php?t=1396)

rjones0604 12-14-2005 12:10 PM

Exit VBScript
 
I'm writing a VBScript step, and need to exit the script prematurely. However, WScript.Quit is not supported. So, how does one exit a script?

Rob

kinook 12-14-2005 01:02 PM

Use structured programming or put your code in a subroutine and exit the subroutine:

MySub ' call the subroutine

Sub MySub()

' some code

Exit Sub

' some more code

End Sub

rjones0604 12-14-2005 01:08 PM

So what you're really saying is that there is no way to exit a script, the script 'code' must completely execute. If I want to stop execution, I have to enclose the entire remainder of the script inside an 'If' test...

BTW, putting code in a subroutine and using the sub's 'Exit Sub' call does not shutdown a script, it merely exits the subroutine.

kinook 12-14-2005 01:15 PM

How would "exiting the script" be different from exiting the subroutine before the end? An Exit Sub statement within a subroutine prevents the remainder of the subroutine code from executing, which has the same effect as calling WScript.Quit in a .vbs file (preventing the remainder of the code in the .vbs file from executing).

rjones0604 12-14-2005 01:16 PM

Actually, the VBP online help says this about WScript:

A helper object to provide compatibility with WSH script code. It's actually an alias for the Builder object, so all methods on each object are available on both.


So, that means that the .Quit method is supposed to be available, right?

kinook 12-14-2005 01:30 PM

Actually, only the WScript CreateObject, Sleep, and Echo methods are supported (we'll update the docs to be explicit about that). But, again, there are other ways to exit a script "prematurely." Also, if you want to stop the build with an error from within script code, use

Err.Raise 1, Step.Name, "error description"


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