Refactor print preview web ui

chrome/browser/resources/print_preview/data/measurement_system.js

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+cr.define('print_preview', function() {
+  'use strict';
+
+  /**
+   * @constructor
+   */
+  function MeasurementSystem(thousandsDelimeter, decimalDelimeter, unitType) {
+    this.thousandsDelimeter_ = thousandsDelimeter;
+    this.decimalDelimeter_ = decimalDelimeter;
+    this.unitType_ = unitType;
+  };
+
+  /**
+   * Parses |numberFormat| and extracts the symbols used for the thousands point
+   * and decimal point.
+   * @param {string} numberFormat The formatted version of the number 12345678.
+   * @return {!Array.<string>} The extracted symbols in the order
+   *     [thousandsSymbol, decimalSymbol]. For example,
+   *     parseNumberFormat("123,456.78") returns [",", "."].
+   */
+  MeasurementSystem.parseNumberFormat = function(numberFormat) {
+    if (!numberFormat)
+      numberFormat = '';
+    var regex = /^(\d+)(\W{0,1})(\d+)(\W{0,1})(\d+)$/;
+    var matches = numberFormat.match(regex) || ['', '', ',', '', '.'];
+    return [matches[2], matches[4]];
+  };
+
+  // Export
+  return {
+    MeasurementSystem: MeasurementSystem
+  };
+});