David Noon wrote on 04 Jan 1996 at 21:13 to Ruud Senden:

RS> Does anybody know how to do this? Is there a single command for
RS> this, or do I  have to create this error-message myself, by using
RS> the  CONDITION-function and the RC and SIGL-variables (together  with
RS> errortext and sourceline-functions)?

 DN> You have just posted the solution yourself. The CONDITION()
 DN> built-in function and the SIGL variable will tell you what happened
 DN> and where, respectively. The RC variable will not usually be
 DN> meaningful. 

Well, the RC-variable is at least meaningfull with a syntax error. The most
difficult part is to figure out which error-messages are possible with the
possible signals. For example, when the user presses Ctrl-Break, a
HALT-signal is raised, and from that I have to know that I have to display
the errortext belonging to error 4.
Another difficult part is, that if you have nested procedure-calls (eg p1
calls p2, p2 calls p3, an error occurs somewhere in p3), then the standard
REXX-error also displays the names of p1, p2 and p3, even with the right
indentation.

This is why I hoped there was a standard way to generate the standard
REXX-error, instead of having to figure out all the possible error-messages
with each possible signal, and then having to build-up the error-message
yourself.
Anyway, thank you for your answer, it confirmed my fear.

Regards,
  Ruud  (Internet: rsenden{at}cs.ruu.nl) 

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