#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
: ${TMPDIR:=/tmp}

set -o history
HISTFILE=$TMPDIR/history-$$

history -c

echo one
echo two
echo three
echo four
echo five
echo six
echo seven
echo eight
echo nine
echo ten

history ; echo 

history 2-4 ; echo

history

echo a
echo b
echo c
echo d
echo e

history

history 6--1; echo
history -- -1 ; echo

history 18-14
history 14-18 ; echo

history ; echo

history -- -1-22
history -- 22--2 ; echo

history 16-40
history 1-200
history -- -20-50
history 1--50
history 5-0xaf

history @42
history -- -0xaf

# out of range arguments are clamped at 0 and history_length, respectively
history -d -2--1 # remove comment and this command
history -- -200--1 ; echo
history 567 ; echo

history -- -1-20
history -- 1--30

unset HISTFILE
exit 0