Re: Checking the stack is empty at the end of the program

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From	Cecil Westerhof <Cecil@decebal.nl>
Newsgroups	comp.lang.postscript
Subject	Re: Checking the stack is empty at the end of the program
Organization	Decebal Computing
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Date	Thu, 01 Aug 2013 12:40:46 +0200
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Op donderdag 1 aug 2013 11:37 CEST schreef luser:

> On Thursday, August 1, 2013 3:41:29 AM UTC-5, Cecil Westerhof wrote:
>
>>
>> Only one thing is missing. When the stack is not empty, I want to
>> signal an error. In this way the calling script will terminate. Is
>> this possible?
>>
>
> Sure. In ghostscript, use `signalerror`.
>
> error-object error-name  signalerror  
>
> Now the error name should be one of the standard postscript
> errors if you want to trip the normal mechanism. 
> But the error object can be an informative name.
>
> /STACK-NOT-EMPTY cvx /unregistered signalerror
>
> which results in:
> Error: /unregistered in STACK-NOT-EMPTY
> ...(normal error stack dumps)

Works, thanks. Only one thing: I already showed the stack. Is it
possible to circumvent the stack dumps?

-- 
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof

Thread

Checking the stack is empty at the end of the program Cecil Westerhof <Cecil@decebal.nl> - 2013-08-01 00:16 +0200
  Re: Checking the stack is empty at the end of the program luser- -droog <mijoryx@yahoo.com> - 2013-07-31 15:41 -0700
    Re: Checking the stack is empty at the end of the program Cecil Westerhof <Cecil@decebal.nl> - 2013-08-01 02:36 +0200
  Re: Checking the stack is empty at the end of the program Dan Coby <adcoby@earthlink.net> - 2013-07-31 18:36 -0700
    Re: Checking the stack is empty at the end of the program luser- -droog <mijoryx@yahoo.com> - 2013-07-31 23:53 -0700
      Re: Checking the stack is empty at the end of the program Cecil Westerhof <Cecil@decebal.nl> - 2013-08-01 10:41 +0200
        Re: Checking the stack is empty at the end of the program luser- -droog <mijoryx@yahoo.com> - 2013-08-01 02:37 -0700
          Re: Checking the stack is empty at the end of the program Cecil Westerhof <Cecil@decebal.nl> - 2013-08-01 12:40 +0200
            Re: Checking the stack is empty at the end of the program luser- -droog <mijoryx@yahoo.com> - 2013-08-01 03:53 -0700
              Re: Checking the stack is empty at the end of the program luser- -droog <mijoryx@yahoo.com> - 2013-08-01 03:56 -0700
                Re: Checking the stack is empty at the end of the program luser- -droog <mijoryx@yahoo.com> - 2013-08-01 04:23 -0700
                Re: Checking the stack is empty at the end of the program Cecil Westerhof <Cecil@decebal.nl> - 2013-08-01 15:45 +0200
              Re: Checking the stack is empty at the end of the program Cecil Westerhof <Cecil@decebal.nl> - 2013-08-01 13:18 +0200
                Re: Checking the stack is empty at the end of the program luser- -droog <mijoryx@yahoo.com> - 2013-08-01 09:33 -0700
                Re: Checking the stack is empty at the end of the program luser- -droog <mijoryx@yahoo.com> - 2013-08-01 18:25 -0700

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