Hi Marc
On Wed, Aug 01, 2007 at 12:05:29PM +0200, Marc Haber wrote:
> On Wed, Aug 01, 2007 at 11:51:36AM +0200, Ola Lundqvist wrote:
> > The drawback is that we will have a separate proces for each action, but
> > maybe that is ok?
>
> As long as the actions don't try communicating back to the caller,
> this could be fine. Communicating unfortunately includes "abort".
True! We need to be able to do the abort in a good way.
> > > Yes, that would be my intention. Want me to deliver a patch?
> >
> > Yes that would be nice.
> >
> > Either some _HERE thing or scope handling as described above.
>
> I like the _HERE thing better, especially because the scope thing
> would not preserve backwards compatibility.
I tend to agree.
I created something that you can use when creating the patch. I think
it is general enough.
# Set variable to here value
SIFS=$IFS
IFS="
"
LIST=$(set | grep "^[a-zA-Z][a-zA-Z0-9_]*_HERE" | sed -e "s|=.*||;")
for HVAR in $LIST ; do
# Var name
VVAR=$(echo $HVAR | sed -e "s|_HERE$||g;")
# Stored var name
eval "SVAR=${VVAR}_STORED"
# Store the value to stored variable
eval "$SVAR=\$$VAR"
# Set variable to here variable
eval "$VVAR=\$$HVAR"
done
.......
# Restore the value
# Restore
echo "# Restore"
for HVAR in $LIST ; do
# Var name
VVAR=$(echo $HVAR | sed -e "s|_HERE$||g;")
# Remove the here variable so it is not set next time
eval "unset $HVAR"
# Stored var name
eval "SVAR=${VVAR}_STORED"
# Restore the value
eval "$VVAR=\$$SVAR"
done
IFS=$SIFS
Best regards,
// Ola
> Greetings
> Marc
>
> --
> -----------------------------------------------------------------------------
> Marc Haber | "I don't trust Computers. They | Mailadresse im Header
> Mannheim, Germany | lose things." Winona Ryder | Fon: *49 621 72739834
> Nordisch by Nature | How to make an American Quilt | Fax: *49 3221 2323190
>
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