Re: st: Make ado file end processing of calling do file

[Paul Burkander <paul@burkander.com>]

Thanks for the quick responses.

Even if there is an alternative, the solution of exiting with an exit
code is perfect for me.  I need everything to come to a screeching
halt, with out any possibility of the user accidentally bypassing the
error; this'll do it.

Paul

On Mon, May 23, 2011 at 9:08 PM, Phil Schumm <pschumm@uchicago.edu> wrote:
> On May 23, 2011, at 7:02 PM, Paul Burkander wrote:
>>
>> I'm new to writing ado files, and I'm having some trouble.  I'd really
>> like my ado file to stop the processing of the calling do file if certain
>> conditions are met.  I guess "exit" just returns control to the calling
>> program.
>>
>> Is there any way to make the calling program completely top based on a
>> condition encountered in the ado file?
>
>
> There are several ways to do what you want.  For example, you could have
> your program exit with a specific return code, and then trap this in your
> do-file:
>
>
> program define foo
>    <program code ...>
>    if <condition> {
>        exit = <return code>
>    }
> end
>
>
> cap foo
> if _rc == <return code> {
>    exit
> }
>
>
> Alternatively, you could have your program set a global macro, and then
> check for specific values of this macro in your do-file following your call
> to the program.  Though there are other ways, these are perhaps the best
> two.
>
> The real question, however, is what are you trying to do?  I'm guessing that
> there might be an alternative (and perhaps better) way to approach the
> problem...
>
>
> -- Phil
>
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