add do_exclude list and test for it

share/eterbuild/functions/strings

+
+# Args: LIST1 LIST2
+# do_exclude_list print LIST2 with field contains in LIST1
+do_exclude_list()
+{
+        local i
+        local RES=
+        for i in $2 ; do
+                echo "$1" | grep -q -w $i || RES="$RES $i"
+        done
+        echo $RES
+}

tests/test_list_exclude.sh

+#!/bin/sh
+
+. `dirname $0`/../share/eterbuild/functions/common
+load_mod strings
+
+LIST1="field1 field2"
+LIST2="field1 field2 field3 field4"
+LIST3="field"
+
+check()
+{
+        [ "$2" != "$3" ] && echo "FATAL with '$1': result '$3' do not match with '$2'" || echo "OK for '$1' with '$2'"
+}
+
+check 1 "field3 field4" "`do_exclude_list "$LIST1" "$LIST2"`"
+check 2 "" "`do_exclude_list "$LIST2" "$LIST1"`"
+check 3 "field" "`do_exclude_list "$LIST1" "$LIST3"`"