any-number & nepali-numbers sorting plugins

Merge pull request #248 from davidkonrad/master

sorting/any-number.js

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+/**
+ * Sorts columns by any number, ignoring text. This plugin is useful if you have 
+ * mixed content in a column, but still want to sort by numbers. Any number means
+ *
+ *  - integers, like 42
+ *  - decimal numbers, like 42.42 / 42,42
+ *  - signed numbers, like -42.42 / +42.42 
+ *  - scientific numbers, like 42.42e+10
+ *  - illegal numbers, like 042, which is considered as 42,
+ *  - currency numbers, like €42,00 
+ *
+ * Plain text is ignored; columns with no recognizable numerical content 
+ * is pushed to the bottom of the table, both ascending and descending.
+ *
+ *  @demo http://jsfiddle.net/vkkL5tv7/
+ * 
+ *  @name Any number
+ *  @summary Sort column with mixed numerical content by number
+ *  @author [david konrad](davidkonrad at gmail com)
+ *
+ *  @example
+ *    $('#example').dataTable( {
+ *       columnDefs: [
+ *         { type: 'any-number', targets : 0 }
+ *       ]
+ *    } );
+
+ *
+ */
+ 
+_anyNumberSort = function(a, b, high) {
+	var reg = /[+-]?((\d+(\.\d*)?)|\.\d+)([eE][+-]?[0-9]+)?/;        
+	a = a.replace(',','.').match(reg);
+	a = a !== null ? parseFloat(a[0]) : high;
+	b = b.replace(',','.').match(reg);
+	b = b !== null ? parseFloat(b[0]) : high;
+	return ((a < b) ? -1 : ((a > b) ? 1 : 0));    
+}
+
+jQuery.extend( jQuery.fn.dataTableExt.oSort, {
+	"any-number-asc": function (a, b) {
+		return _anyNumberSort(a, b, Number.POSITIVE_INFINITY);
+	},
+	"any-number-desc": function (a, b) {
+		return _anyNumberSort(a, b, Number.NEGATIVE_INFINITY) * -1;
+	}
+});
+
+

sorting/nepali-numbers.js

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+/**
+ * Sorts a column containing nepali numbers. Nepali numbers can easily be 
+ * mapped 1:1 to latin numbers - १ = 1, २ = 2, १२ = 12 and so on.
+ *
+ * <https://en.wikipedia.org/wiki/Numbers_in_Nepali_language>
+ * <http://www.imnepal.com/nepali-numbers>
+ * <http://stackoverflow.com/q/26856481/1407478>
+ * <http://jsfiddle.net/ft7f16yt>
+ *
+ *  @name Nepali numbers
+ *  @summary Sorts columns containing UTF8 nepali numbers
+ *  @author [david konrad](davidkonrad at gmail com)
+ *
+ *  @example
+ *    $('#example').DataTable( {
+ *       columnDefs: [
+ *         { type: 'nepali-numbers', targets: 0 }
+ *       ]
+ *    } );
+ */
+
+jQuery.extend( jQuery.fn.dataTableExt.oSort, {
+	"nepali-numbers-pre" : function(a) {
+		function nepaliToLatin(nepali) {
+			switch(nepali) {
+				case "०": return 0; break;
+				case "१": return 1; break;
+				case "२": return 2; break;
+				case "३": return 3; break;
+				case "४": return 4; break;
+				case "५": return 5; break;
+				case "६": return 6; break;
+				case "७": return 7; break;
+				case "८": return 8; break;
+				case "९": return 9; break;        
+				default : return 0; break;
+			}        
+		}
+		var latin = '', i = 0;
+		for (i; i<a.length; i++) {
+			latin += nepaliToLatin(a.charAt(i))
+		}
+		return parseInt(latin)
+	},
+
+	"nepali-numbers-asc": function(a, b) {
+		return ((a < b) ? -1 : ((a > b) ? 1 : 0))
+	},
+
+	"nepali-numbers-desc": function(a, b) {
+		return ((a < b) ? 1 : ((a > b) ? -1 : 0))
+	}
+
+} );
+
+