Delete proxy and total samples, which have bit-rotted.

samples/total/client/DateTimeUtils.dart

Index: samples/total/client/DateTimeUtils.dart
===================================================================
--- samples/total/client/DateTimeUtils.dart	(revision 9011)
+++ samples/total/client/DateTimeUtils.dart	(working copy)
@@ -1,123 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class DateUtils {
-  static final int DAYS_FROM_1900_TO_1970 = 25569;
-  static final int MILLISECONDS_PER_DAY = 86400000;
-  static final int MILLISECONDS_PER_HOUR = 3600000;
-  static Date _EPOCH;
-
-  // Return the 1899-12-30 spreadsheet epoch
-  static Date get EPOCH() {
-    if (_EPOCH == null) {
-      _EPOCH = new Date(1899, 12, 30, 0, 0, 0, 0);
-    }
-    return _EPOCH;
-  }
-
-  static double getDate(int year, int month, int day) {
-    Date dateTime = new Date(year, month, day, 12, 0, 0, 0);
-    int milliseconds = dateTime.difference(EPOCH).inMilliseconds;
-    double days = (milliseconds / MILLISECONDS_PER_DAY).floor();
-    return days;
-  }
-
-  // Return a Date object corresponding to the given number of days after 1899-12-30.
-  static Date getDateTime(double daysSince18991230) {
-    double daysSinceEpoch = daysSince18991230 - DAYS_FROM_1900_TO_1970;
-    int millisSinceEpoch = (daysSinceEpoch * MILLISECONDS_PER_DAY).toInt();
-    return new Date.fromMillisecondsSinceEpoch(millisSinceEpoch, isUtc: true);
-  }
-
-  static double getTime(int hour, int minute, int second) {
-    Date dateTime = new Date(1899, 12, 30, hour, minute, second, 0);
-    int milliseconds = dateTime.difference(EPOCH).inMilliseconds;
-    double days = milliseconds / MILLISECONDS_PER_DAY;
-    return days;
-  }
-
-  // Return true if the given string will be treated as a date when entered into a spreadsheet
-  // cell.  Currently, the forms MM-DD (with the current year implied), MM-DD-YY, and MM-DD-YYYY
-  // are recognized.  For two digit years, values between 00 and 50 are prefixed with "20" and
-  // values between 51 and 99 are prefixed with "19".  Either '-' or '/' may be used as the
-  // separator character.
-  static bool isDate(String value) {
-    // Perform trivial rejection if the initial character is not a digit
-    if (!StringUtils.isDigit(value.charCodeAt(0))) {
-      return false;
-    }
-    // TODO: use @"" syntax
-    // MM-DD
-    RegExp mmdd = const RegExp("^(\\d\\d?)[-/](\\d\\d?)\$");
-    if (mmdd.hasMatch(value)) {
-      return true;
-    }
-    // MM-DD-YY or MM-DD-YYYY
-    RegExp mmddyyyy = const RegExp("^(\\d\\d?)[-/](\\d\\d?)[-/](\\d\\d\\d?\\d?)\$");
-    if (mmddyyyy.hasMatch(value)) {
-      return true;
-    }
-    return false;
-  }
-
-  // Return the number of days between 1899-12-30 and the current time.
-  static double now() {
-    Date nowDate = new Date.now();
-    int milliseconds = nowDate.difference(EPOCH).inMilliseconds;
-    // We round the result to get rid of daylight saving differences.
-    double days = (milliseconds / MILLISECONDS_PER_DAY).round();
-    return days;
-  }
-
-  // Parse a date and return the number of days between 1899-12-30 and the given date.
-  // The acceptable formats are as described in the comments for isDate(String).
-  static double parseDate(String value) {
-    RegExp mmdd = const RegExp("^(\\d\\d?)[-/](\\d\\d?)\$");
-    Match m = mmdd.firstMatch(value);
-    if (m != null) {
-      int month = _parseInt(m[1]);
-      int day = _parseInt(m[2]);
-      Date nowDate = new Date.now();
-      int thisYear = nowDate.year;
-      Date dateTime = new Date(thisYear, month, day, 0, 0, 0, 0);
-      int milliseconds = dateTime.difference(EPOCH).inMilliseconds;
-      // We round the result to get rid of daylight saving differences.
-      double days = (milliseconds / MILLISECONDS_PER_DAY).round();
-      return days;
-    }
-
-    RegExp mmddyyyy = const RegExp("^(\\d\\d?)[-/](\\d\\d?)[-/](\\d\\d\\d?\\d?)\$");
-    m = mmddyyyy.firstMatch(value);
-    if (m != null) {
-      int month = _parseInt(m[1]);
-      int day = _parseInt(m[2]);
-      int year = _parseInt(m[3]);
-      // 0-50 ==> 2000-2050, 51-99 ==> 1951-1999
-      if (year < 50) {
-        year += 2000;
-      } else if (year < 100) {
-        year += 1900;
-      }
-      Date dateTime = new Date(year, month, day, 0, 0, 0, 0);
-      int milliseconds = dateTime.difference(EPOCH).inMilliseconds;
-      // We round the result to get rid of daylight saving differences.
-      double days = (milliseconds / MILLISECONDS_PER_DAY).round();
-      return days;
-    }
-
-    return -1.0;
-  }
-
-  // Return the number of days between 1899-12-30 and the current time, truncated to
-  // an integer.
-  static double today() => now().floor();
-
-  // Parse an integer, stripping leading zeros to avoid an octal parsing bug.
-  static int _parseInt(String s) {
-    while (s.length > 1 && s.charCodeAt(0) == StringUtils.ZERO) {
-      s = s.substring(1, s.length);
-    }
-    return Math.parseInt(s);
-  }
-}