On Thursday, June 28, 2012 02:37:17 PM Rainer Blome wrote: > The implementation of "set -e" does not respect "lexical nesting". > This can be very surprising.
None of the "set" options do, nor does the ERR trap. That would make this the
exception. Here's a workaround (untested).
sete() {
[[ $- == *e* ]] && return 1
trap "$(</dev/stdin)" RETURN
} <<EOF
if [[ $FUNCNAME != \$FUNCNAME ]]; then
set +e
trap - RETURN
else
set -e
fi
EOF
This will "set -e" in only the scope of the caller. It gets a bit more
complicated if you want to use this RETURN feature more extensively and
preserve other possible RETURN traps, but most people won't have to worry
about that.
--
Dan Douglas
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