X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/b079d40fb75e515e41c9e9555c0a2e89a90196bb..d5dc9a90873047ab07107833a950320ae3b2b41f:/package/base-files/files/etc/functions.sh

diff --git a/package/base-files/files/etc/functions.sh b/package/base-files/files/etc/functions.sh
index af4eae23f..0314692c5 100755
--- a/package/base-files/files/etc/functions.sh
+++ b/package/base-files/files/etc/functions.sh
@@ -24,6 +24,30 @@ 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="$2"
+	local val
+
+	eval "val=\" \${$var} \""
+	val1="${val%% $remove *}"
+	[ "$val1" = "$val" ] && return
+	val2="${val##* $remove }"
+	[ "$val2" = "$val" ] && return
+	val="${val1## } ${val2%% }"
+	val="${val%% }"
+	eval "export ${NO_EXPORT:+-n} -- \"$var=\$val\""
+}
+
 config_load() {
 	[ -n "$IPKG_INSTROOT" ] && return 0
 	uci_load "$@"
@@ -84,8 +108,8 @@ config_unset() {
 config_clear() {
 	local SECTION="$1"
 	local oldvar
-	
-	export ${NO_EXPORT:+-n} CONFIG_SECTIONS="$(echo " $CONFIG_SECTIONS " | sed -e "s, $OLD , ,")"
+
+	list_remove CONFIG_SECTIONS "$SECTION"
 	export ${NO_EXPORT:+-n} CONFIG_SECTIONS="${SECTION:+$CONFIG_SECTIONS}"
 
 	for oldvar in `set | grep ^CONFIG_${SECTION:+${SECTION}_} | \