Merge pull request #520 from KhorshidLab/master

Add Persian number sorting plugin

sorting/persian-number.js

@@ -0,0 +1,41 @@
+/**
+ * Sorts a column containing Persian numbers. Persian numbers can easily be
+ * mapped 1:1 to latin numbers - ۱ = 1, ۲ = 2, ۱۲ = 12 and so on.
+ *
+ *
+ *  @name DataTables Persian Number Sorting
+ *  @summary Sorts columns containing UTF-8 Persian numbers
+ *  @author [Khorshid](https://khorshidlab.com)
+ *
+ *  @example
+ *    $('#example').DataTable( {
+ *       columnDefs: [
+ *         { type: 'kh-persian-numbers', targets: 0 }
+ *       ]
+ *    } );
+ */
+
+ jQuery.extend(jQuery.fn.dataTableExt.oSort, {
+    "kh-persian-numbers-pre": function (a) {
+        function toEnglishNumber(strNum) {
+            var pn = ["۰", "۱", "۲", "۳", "۴", "۵", "۶", "۷", "۸", "۹"];
+            var en = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"];
+            var cache = strNum;
+
+            for (var i = 0; i < 10; i++) {
+                var regex_fa = new RegExp(pn[i], 'g');
+                cache = cache.replace(regex_fa, en[i]);
+            }
+
+            return cache;
+        }
+
+        return parseFloat(toEnglishNumber(a))
+    },
+    "kh-persian-numbers-asc": function (a, b) {
+        return ((a < b) ? -1 : ((a > b) ? 1 : 0))
+    },
+    "kh-persian-numbers-desc": function (a, b) {
+        return ((a < b) ? 1 : ((a > b) ? -1 : 0))
+    }
+});