Tie::Watch
An object oriented interface to the Perl builtin tie(), that allows
a watchpoint to be placed on any Perl variable. A watchpoint is simply a
callback (subroutine) that is invoked when a variable is accessed.
The callback can do various things:
. alter a variable's value
. prevent a variable's value from being changed
. invoke a Perl/Tk callback when a variable changes
. trace references to a variable
Do:
perl Makefile.PL
make test
make install
If you have Tk installed, delete the __END__ statement from test.pl and
execute "test.pl all" to see a Tk watchpoint example.
BUGS: tied arrays are incomplete, thus so are watched arrays.
Steve Lidie
[email protected]
97/10/03
