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2017-09-15Implement defer, $jim::deferSteve Bennett1-0/+237
Allows commands to run when a proc or interpreter exits. If the $jim::defer variables exists at proc or interp exit, it is treated as a list of scripts to evaluate (in reverse order). The [defer] command is a helper to add scripts to $jim::defer See tests/defer.test Signed-off-by: Steve Bennett <steveb@workware.net.au>