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functions.sh: add list_contains function for checking whether a list contains a specific element

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SVN-Revision: 12025
This commit is contained in:
Felix Fietkau 2008-07-30 22:39:43 +00:00
parent 4d883da9bf
commit 8c453b693c
1 changed files with 9 additions and 0 deletions
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9
package/base-files/files/etc/functions.sh
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@ -24,6 +24,15 @@ append() {
eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
}
list_contains() {
local var="$1"
local str="$2"
local val
eval "val=\" \${$var} \""
[ "${val%% $str *}" != "$val" ]
}
list_remove() {
local var="$1"
local remove="$2"