Commit updated Javascript packages

build/javascript/node_modules/mpd-parser/src/utils/time.js

@@ -0,0 +1,39 @@
+export const parseDuration = (str) => {
+  const SECONDS_IN_YEAR = 365 * 24 * 60 * 60;
+  const SECONDS_IN_MONTH = 30 * 24 * 60 * 60;
+  const SECONDS_IN_DAY = 24 * 60 * 60;
+  const SECONDS_IN_HOUR = 60 * 60;
+  const SECONDS_IN_MIN = 60;
+
+  // P10Y10M10DT10H10M10.1S
+  const durationRegex =
+    /P(?:(\d*)Y)?(?:(\d*)M)?(?:(\d*)D)?(?:T(?:(\d*)H)?(?:(\d*)M)?(?:([\d.]*)S)?)?/;
+  const match = durationRegex.exec(str);
+
+  if (!match) {
+    return 0;
+  }
+
+  const [year, month, day, hour, minute, second] = match.slice(1);
+
+  return (parseFloat(year || 0) * SECONDS_IN_YEAR +
+    parseFloat(month || 0) * SECONDS_IN_MONTH +
+    parseFloat(day || 0) * SECONDS_IN_DAY +
+    parseFloat(hour || 0) * SECONDS_IN_HOUR +
+    parseFloat(minute || 0) * SECONDS_IN_MIN +
+    parseFloat(second || 0));
+};
+
+export const parseDate = (str) => {
+  // Date format without timezone according to ISO 8601
+  // YYY-MM-DDThh:mm:ss.ssssss
+  const dateRegex = /^\d+-\d+-\d+T\d+:\d+:\d+(\.\d+)?$/;
+
+  // If the date string does not specifiy a timezone, we must specifiy UTC. This is
+  // expressed by ending with 'Z'
+  if (dateRegex.test(str)) {
+    str += 'Z';
+  }
+
+  return Date.parse(str);
+};