]>
git.ipfire.org Git - people/stevee/network.git/blob - src/functions/functions.list
2 ###############################################################################
4 # IPFire.org - A linux based firewall #
5 # Copyright (C) 2012 IPFire Network Development Team #
7 # This program is free software: you can redistribute it and/or modify #
8 # it under the terms of the GNU General Public License as published by #
9 # the Free Software Foundation, either version 3 of the License, or #
10 # (at your option) any later version. #
12 # This program is distributed in the hope that it will be useful, #
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of #
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
15 # GNU General Public License for more details. #
17 # You should have received a copy of the GNU General Public License #
18 # along with this program. If not, see <http://www.gnu.org/licenses/>. #
20 ###############################################################################
22 # Functions for nice handling of lists.
25 function list_append
() {
32 list_append_one
"${list}" "${arg}"
36 function list_append_one
() {
44 if [ -n "${!list}" ]; then
45 printf -v ${list} -- "${!list} $@"
47 printf -v ${list} -- "$@"
51 function list_remove
() {
59 listmatch
${k} $@
&& continue
64 eval "${list}=\"${_list}\""
67 function list_sort
() {
71 done |
sort |
tr '\n' ' '
75 function list_unique
() {
78 # Check if the item has already been processed.
79 list_match
"${item}" ${items} && continue
81 list_append items
"${item}"
86 function list_match
() {
92 [ "${match}" = "${i}" ] && return ${EXIT_OK}
98 function list_length() {
103 length=$(( ${length} + 1 ))
109 # Count how often $1 occurs in the list.
110 function list_count() {
118 if [ "${arg}" = "${what}" ]; then
119 counter=$(( ${counter} + 1 ))
126 function list_join() {
131 printf -v ret "${delim}%s
" ${!list}
133 print "${ret:${#delim}}"
136 function list_reverse() {
139 reversed="${arg} ${reversed}"