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public/bower_components/jquery-validation/src/additional/dateITA.js

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+/**
+ * Return true, if the value is a valid date, also making this formal check dd/mm/yyyy.
+ *
+ * @example $.validator.methods.date("01/01/1900")
+ * @result true
+ *
+ * @example $.validator.methods.date("01/13/1990")
+ * @result false
+ *
+ * @example $.validator.methods.date("01.01.1900")
+ * @result false
+ *
+ * @example <input name="pippo" class="{dateITA:true}" />
+ * @desc Declares an optional input element whose value must be a valid date.
+ *
+ * @name $.validator.methods.dateITA
+ * @type Boolean
+ * @cat Plugins/Validate/Methods
+ */
+$.validator.addMethod( "dateITA", function( value, element ) {
+	var check = false,
+		re = /^\d{1,2}\/\d{1,2}\/\d{4}$/,
+		adata, gg, mm, aaaa, xdata;
+	if ( re.test( value ) ) {
+		adata = value.split( "/" );
+		gg = parseInt( adata[ 0 ], 10 );
+		mm = parseInt( adata[ 1 ], 10 );
+		aaaa = parseInt( adata[ 2 ], 10 );
+		xdata = new Date( Date.UTC( aaaa, mm - 1, gg, 12, 0, 0, 0 ) );
+		if ( ( xdata.getUTCFullYear() === aaaa ) && ( xdata.getUTCMonth() === mm - 1 ) && ( xdata.getUTCDate() === gg ) ) {
+			check = true;
+		} else {
+			check = false;
+		}
+	} else {
+		check = false;
+	}
+	return this.optional( element ) || check;
+}, $.validator.messages.date );