markslider python3 upgrades

files/mvregex

@@ -10,6 +10,7 @@ function helpexit() {
     echo '    -n to match non-ascii and non-printable characters, and replace to [arg1]'
     echo '    -f to replace match [arg1] with format [arg2], ex: -f "[0-9]\+" "%04d"'
     echo '    -p to replace problematic characters [^\w()[]-.] with [arg1]'
+    echo '    -a to replace non-alphanumeric(+dot) characters [^\w.] with [arg1]'
     
     exit
 }
@@ -44,6 +45,10 @@ do  [[ "${!i}" = "-h" ]] && helpexit
             SRC='[^]\[0-9a-zA-Z_.()-]'
             continue
         }
+    [[ "${!i}" = "-a" ]] && {
+            SRC='[^0-9a-zA-Z.]'
+            continue
+        }
     [[ -z "$SRC" ]] && {
             SRC="${!i}"
             continue