How to pass CSH variables up to the parent?


 
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Old 11-30-2006
How to pass CSH variables up to the parent?

Hi ..

I have a dynamic script called from a programming language called Powerhouse (4GL).

The module, called QUIZ, allows the user to call shell commands from within it...
i.e.

!rm -f mipss156t2cmd1.bat mipss156t2tmp1.txt
!printf '#!/bin/csh\n' > mipss156t2cmd1.bat
!printf 'setenv ACCOUNTS "' >> mipss156t2cmd1.bat
!cat mipss156t2b.ps >> mipss156t2cmd1.bat
!printf '"\n' >> mipss156t2cmd1.bat
!chmod 770 mipss156t2cmd1.bat
!printf 'export ACCOUNTS\n' >> mipss156t2cmd1.bat
;run the BAT file to create the environment variable
!source ./mipss156t2cmd1.bat
!rm -f mipss156t2cmd1.bat mipss156t2tmp1.txt

What I am trying to do here is create a C shell (doesn't have to be C shell) script to create an environment variable called $ACCOUNTS. I then want this value to be available to the QUIZ module (the parent).

The above, even with the !source line, does not work and when I manually echo the $ACCOUNTS variable, it's actually empty! It should not be empty as the mipss156t2b.ps file (a text file) has the value I want to place into ACCOUNTS variable. But, for some reason the variable is "lost" when the above script returns back to the parent (ie. QUIZ program).

I read somewhere that it's not possible to create child variables and have them available to the parent shell. Is this true?

Thank you in advance
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XtMenuPopdown() 														   XtMenuPopdown()

Name
  XtMenuPopdown - built-in action for popping down a widget.

Synopsis (Translation Table)
  <Event sequence>: XtMenuPopdown([shell])

Inputs
  shell     An optional argument which specifies the name of the shell to pop down.

Availability
  This action is named MenuPopdown prior to Release 4.

Description
  XtMenuPopdown  is a predefined action procedure which does not have a corresponding public C routine.  It can only be invoked from a trans-
  lation table.  If passed an argument, that argument is interpreted as a shell name, and XtMenuPopdown tries to  find	the  named  shell  by
  looking up the widget tree starting at the parent of the widget in which it is invoked.  If it finds a shell with the specified name in the
  popup children of that parent, it pops down the shell by calling XtPopdown(); otherwise, it moves  up  the  parent  chain  as  needed.   If
  XtMenuPopdown  gets  to the application top-level shell widget and cannot find a matching shell, it generates a warning and returns immedi-
  ately.  If XtMenuPopdown is called with no argument, it calls XtPopdown() on the widget for which the translation is specified.

Usage
  Note that XtMenuPopdown is an action procedure; you cannot call it from C code.

  The action name MenuPopdown is a synonym for XtMenuPopdown.  Either action can be used to pop down menus or other popup shells.

  Popup shells can also be popped down by calling XtPopdown() explicitly, or by using the predefined callback procedure XtCallbackPopdown().

  The action XtMenuPopup can be used to pop up a spring-loaded popup from a translation table.

See Also
  XtCallbackPopdown(1), XtMenuPopup(1), XtPopDown(1), XtPopup(1), XtPopupSpringLoaded(1).

Xt - Pop Ups															   XtMenuPopdown()