add shiftPositions option

README.md

@@ -1117,6 +1117,13 @@ If you don't use data attributes you can disable the import by specifying import
 
 Default: true
 
+### shiftPositions
+Shift position of the mask entries on entry and deletion.
+In some cases shift the mask enties isn't desired.  
+Ex. date masks.  Shifting month to day makes no sense
+
+Default: true
+
 ## General
 ### set a value and apply mask
 this can be done with the traditional jquery.val function (all browsers) or JavaScript value property for browsers which implement lookupGetter or getOwnPropertyDescriptor

dist/inputmask/inputmask.date.extensions.js

@@ -245,7 +245,8 @@
                 if (test.nativeDef.indexOf("[AP]") == 0) return elem.toUpperCase();
                 return elem;
             },
-            insertMode: false
+            insertMode: false,
+            shiftPositions: false
         }
     });
     return Inputmask;

js/inputmask.js

@@ -110,7 +110,8 @@
                 inputmode: "verbatim", //specify the inputmode  - already in place for when browsers will support it
                 colorMask: false, //enable css styleable mask
                 disablePredictiveText: false, //disable Predictive Text on mobile devices
-                importDataAttributes: true //import data-inputmask attributes
+                importDataAttributes: true, //import data-inputmask attributes
+                shiftPositions: true //shift position of the mask entries on entry and deletion.
             },
             definitions: {
                 "9": { //\uFF11-\uFF19 #1606