epm: add is_wildcard to the common place and use it

bin/epm-mark

@@ -17,12 +17,6 @@
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
 #
 
-# TODO: move to a common place and use
-__is_wildcard()
-{
-    echo "$1" | grep -q "[*?]"
-}
-
 __alt_mark_hold_package()
 {
         local pkg="$1"

bin/epm-sh-functions

@@ -241,6 +241,12 @@ is_dirpath()
     startwith "$1" "/"
 }
 
+is_wildcard()
+{
+    echo "$1" | grep -q "[*?]" && return
+    echo "$1" | grep -q "\]" && return
+    echo "$1" | grep -q "\[" && return
+}
 
 filter_strip_spaces()
 {