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# pro-archman
# lib/cmd.sh
# Command-related functions
#
# Copyright (C) 2013 Patrick "P. J." McDermott
#
# 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/>.
cmds=
register_cmd()
{
local cmd="${1}"
shift 1
cmds="${cmds}${cmd} "
return 0
}
print_opt_summaries()
{
local padding=
local opt=
local opt_out=
local summary=
padding="$(printf '%24s' '')"
for opt in $(printf '%s' "${OPTSTRING}" | sed 's/\([a-zA-Z0-9]\)/ \1/g')
do
if [ ${#opt} -eq 1 ]; then
# No argument expected.
opt_out="-${opt}"
else
# Argument expected.
opt="${opt%?}"
opt_out="-${opt} $(get_msg "opt_${opt}_arg")"
fi
if [ ${#opt_out} -gt 20 ]; then
printf ' %s\n%24s' "${opt_out}" ''
else
printf ' %-20s ' "${opt_out}"
fi
summary="$(get_msg "opt_${opt}_summary")"
printf '%s\n' "${summary}" | fold -s -w 56 | \
sed "2,\$s/^/${padding}/;"
done
}
print_cmd_summaries()
{
local padding=
local cmd=
local cmd_clean=
local summary=
padding="$(printf '%24s' '')"
for cmd in ${cmds}; do
if [ ${#cmd} -gt 20 ]; then
printf ' %s\n%24s' "${cmd}" ''
else
printf ' %-20s ' "${cmd}"
fi
cmd_clean="$(printf '%s' "${cmd}" | \
tr '[A-Z]' '[a-z]' | tr -C '[a-z0-9_]' '_')"
summary="$(get_msg "cmd_${cmd_clean}_summary")"
printf '%s\n' "${summary}" | fold -s -w 56 | \
sed "2,\$s/^/${padding}/;"
done
}
print_cmd_usage()
{
local cmd="${1}"
local cmd_clean=
local usage=
cmd_clean="$(printf '%s' "${cmd}" | \
tr '[A-Z]' '[a-z]' | tr -C '[a-z0-9_]' '_')"
usage="$(get_msg "cmd_${cmd_clean}_usage")"
printf "$(get_msg 'cmd_usage')\n" "${0}" "${cmd}" "${usage}"
}
is_cmd()
{
local cmd="${1}"
[ "x$(printf '%s' "${cmds}" | grep "^${cmd}$")" = "x${cmd}" ]
}
run_cmd()
{
local cmd="${1}"
local cmd_clean=
shift
cmd_clean="$(printf '%s' "${cmd}" | \
tr '[A-Z]' '[a-z]' | tr -C '[a-z0-9_]' '_')"
if is_cmd "${cmd}"; then
"cmd_${cmd_clean}_main" "${@}"
else
error 1 "$(get_msg 'cmd_not_found')" "${cmd}"
fi
}
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