Re: PATCH: (2) test for trap EXIT fix.

[Peter Stephenson <pws@csr.com>]

Bart Schaefer wrote:
> On Oct 8,  9:10am, Peter Stephenson wrote:
> }
> } I'm committing this, partly because it seems to make the shell reasonably
> } compatible with older versions
> 
> Did you also see my message about how this still doesn't quite act like
> bash (and presumably therefore not quite like the standard shell)?

Yes, but that's the same issue as whether falling off the end of the list
should trigger the trap.  The position of the `trap' command matters
because of the stuff in entersubsh() we discussed earlier.  I have a
trivial patch to fix this by calling the trap at the end of execcmd() if
the shell is forked and we are exiting (which is implied at that point if
the shell is forked).  This changes the behaviour, however, so I'm not sure
what to do.

> } but mainly because it saves me having to
> } edit it out when committing the zglob patch.
> 
> Does that mean you're putting the exit-trap patch onto the stable branch?

No, I meant to say that.  It's not yet stable enough.  But we should
document the bug in the 4.0 BUGS list.

I've committed the ChangeLog for the previous patches.

Index: Etc/BUGS
===================================================================
RCS file: /cvsroot/zsh/zsh/Etc/BUGS,v
retrieving revision 1.2
diff -u -r1.2 BUGS
--- Etc/BUGS	2000/04/07 15:01:03	1.2
+++ Etc/BUGS	2001/10/08 10:31:42
@@ -2,6 +2,10 @@
 KNOWN BUGS IN ZSH
 -----------------
 
+When a shell is exited from within a function, the only EXIT trap which is
+run is the one for the function itself, if any.  In particular, an EXIT
+trap set for the shell itself will not be executed in this case.
+------------------------------------------------------------------------
 On some terminals, display of lines with exactly 80 characters is
 problematic.  zsh assumes that the terminal does not print an extra
 newline in this case, but some terminals (e.g. aixterm) do.

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR Ltd., Science Park, Milton Road,
Cambridge, CB4 0WH, UK                          Tel: +44 (0)1223 392070


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