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#!/bin/sh
set -eu
FROM_N=''
TO_N=''
for flag in "$@"; do
case "$flag" in
*[0-9]:*[0-9])
X="$(printf '%s' "$flag" | cut -d ':' -f1)"
Y="$(printf '%s' "$flag" | cut -d ':' -f2)"
FROM_N="$FROM_N $X"
TO_N="$TO_N $Y"
shift
;;
*)
break
;;
esac
done
if [ "$1" = '--' ]; then
shift
fi
STATUS=0
"$@" || STATUS=$?
FOUND=false
I=-1
for from in $FROM_N; do
I=$((I + 1))
if [ "$from" = "$STATUS" ]; then
FOUND=true
break
fi
done
if [ "$FOUND" = false ]; then
exit "$STATUS"
fi
J=-1
for to in $TO_N; do
J=$((J + 1))
if [ "$J" = "$I" ]; then
exit "$to"
fi
done
|
