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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 // Dart core library. | 5 // Dart core library. |
6 | 6 |
7 /** | 7 /** |
8 * Date is the public interface to a point in time. | 8 * Date is the public interface to a point in time. |
9 * | 9 * |
10 * It can represent time values that are at a distance of at most | 10 * It can represent time values that are at a distance of at most |
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254 // - "2012-02-27 13:27:00.423z" | 254 // - "2012-02-27 13:27:00.423z" |
255 // - "20120227 13:27:00" | 255 // - "20120227 13:27:00" |
256 // - "20120227T132700" | 256 // - "20120227T132700" |
257 // - "20120227" | 257 // - "20120227" |
258 // - "2012-02-27T14Z" | 258 // - "2012-02-27T14Z" |
259 // - "-123450101 00:00:00 Z" // In the year -12345. | 259 // - "-123450101 00:00:00 Z" // In the year -12345. |
260 final RegExp re = const RegExp( | 260 final RegExp re = const RegExp( |
261 r'^([+-]?\d?\d\d\d\d)-?(\d\d)-?(\d\d)' // The day part. | 261 r'^([+-]?\d?\d\d\d\d)-?(\d\d)-?(\d\d)' // The day part. |
262 r'(?:[ T](\d\d)(?::?(\d\d)(?::?(\d\d)(.\d{1,6})?)?)? ?([zZ])?)?$'); | 262 r'(?:[ T](\d\d)(?::?(\d\d)(?::?(\d\d)(.\d{1,6})?)?)? ?([zZ])?)?$'); |
263 Match match = re.firstMatch(formattedString); | 263 Match match = re.firstMatch(formattedString); |
264 if (match !== null) { | 264 if (match != null) { |
265 int parseIntOrZero(String matched) { | 265 int parseIntOrZero(String matched) { |
266 // TODO(floitsch): we should not need to test against the empty string. | 266 // TODO(floitsch): we should not need to test against the empty string. |
267 if (matched === null || matched == "") return 0; | 267 if (matched == null || matched == "") return 0; |
268 return int.parse(matched); | 268 return int.parse(matched); |
269 } | 269 } |
270 | 270 |
271 double parseDoubleOrZero(String matched) { | 271 double parseDoubleOrZero(String matched) { |
272 // TODO(floitsch): we should not need to test against the empty string. | 272 // TODO(floitsch): we should not need to test against the empty string. |
273 if (matched === null || matched == "") return 0.0; | 273 if (matched == null || matched == "") return 0.0; |
274 return double.parse(matched); | 274 return double.parse(matched); |
275 } | 275 } |
276 | 276 |
277 int years = int.parse(match[1]); | 277 int years = int.parse(match[1]); |
278 int month = int.parse(match[2]); | 278 int month = int.parse(match[2]); |
279 int day = int.parse(match[3]); | 279 int day = int.parse(match[3]); |
280 int hour = parseIntOrZero(match[4]); | 280 int hour = parseIntOrZero(match[4]); |
281 int minute = parseIntOrZero(match[5]); | 281 int minute = parseIntOrZero(match[5]); |
282 int second = parseIntOrZero(match[6]); | 282 int second = parseIntOrZero(match[6]); |
283 bool addOneMillisecond = false; | 283 bool addOneMillisecond = false; |
284 int millisecond = (parseDoubleOrZero(match[7]) * 1000).round().toInt(); | 284 int millisecond = (parseDoubleOrZero(match[7]) * 1000).round().toInt(); |
285 if (millisecond == 1000) { | 285 if (millisecond == 1000) { |
286 addOneMillisecond = true; | 286 addOneMillisecond = true; |
287 millisecond = 999; | 287 millisecond = 999; |
288 } | 288 } |
289 // TODO(floitsch): we should not need to test against the empty string. | 289 // TODO(floitsch): we should not need to test against the empty string. |
290 bool isUtc = (match[8] !== null) && (match[8] != ""); | 290 bool isUtc = (match[8] != null) && (match[8] != ""); |
291 int millisecondsSinceEpoch = _brokenDownDateToMillisecondsSinceEpoch( | 291 int millisecondsSinceEpoch = _brokenDownDateToMillisecondsSinceEpoch( |
292 years, month, day, hour, minute, second, millisecond, isUtc); | 292 years, month, day, hour, minute, second, millisecond, isUtc); |
293 if (millisecondsSinceEpoch === null) { | 293 if (millisecondsSinceEpoch == null) { |
294 throw new ArgumentError(formattedString); | 294 throw new ArgumentError(formattedString); |
295 } | 295 } |
296 if (addOneMillisecond) millisecondsSinceEpoch++; | 296 if (addOneMillisecond) millisecondsSinceEpoch++; |
297 return new Date.fromMillisecondsSinceEpoch(millisecondsSinceEpoch, | 297 return new Date.fromMillisecondsSinceEpoch(millisecondsSinceEpoch, |
298 isUtc: isUtc); | 298 isUtc: isUtc); |
299 } else { | 299 } else { |
300 throw new ArgumentError(formattedString); | 300 throw new ArgumentError(formattedString); |
301 } | 301 } |
302 } | 302 } |
303 | 303 |
304 static const int _MAX_MILLISECONDS_SINCE_EPOCH = 8640000000000000; | 304 static const int _MAX_MILLISECONDS_SINCE_EPOCH = 8640000000000000; |
305 | 305 |
306 _DateImpl.fromMillisecondsSinceEpoch(this.millisecondsSinceEpoch, | 306 _DateImpl.fromMillisecondsSinceEpoch(this.millisecondsSinceEpoch, |
307 this.isUtc) { | 307 this.isUtc) { |
308 if (millisecondsSinceEpoch.abs() > _MAX_MILLISECONDS_SINCE_EPOCH) { | 308 if (millisecondsSinceEpoch.abs() > _MAX_MILLISECONDS_SINCE_EPOCH) { |
309 throw new ArgumentError(millisecondsSinceEpoch); | 309 throw new ArgumentError(millisecondsSinceEpoch); |
310 } | 310 } |
311 if (isUtc === null) throw new ArgumentError(isUtc); | 311 if (isUtc == null) throw new ArgumentError(isUtc); |
312 } | 312 } |
313 | 313 |
314 bool operator ==(other) { | 314 bool operator ==(other) { |
315 if (!(other is Date)) return false; | 315 if (!(other is Date)) return false; |
316 return (millisecondsSinceEpoch == other.millisecondsSinceEpoch); | 316 return (millisecondsSinceEpoch == other.millisecondsSinceEpoch); |
317 } | 317 } |
318 | 318 |
319 bool operator <(Date other) | 319 bool operator <(Date other) |
320 => millisecondsSinceEpoch < other.millisecondsSinceEpoch; | 320 => millisecondsSinceEpoch < other.millisecondsSinceEpoch; |
321 | 321 |
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419 external Duration get timeZoneOffset; | 419 external Duration get timeZoneOffset; |
420 external int get year; | 420 external int get year; |
421 external int get month; | 421 external int get month; |
422 external int get day; | 422 external int get day; |
423 external int get hour; | 423 external int get hour; |
424 external int get minute; | 424 external int get minute; |
425 external int get second; | 425 external int get second; |
426 external int get millisecond; | 426 external int get millisecond; |
427 external int get weekday; | 427 external int get weekday; |
428 } | 428 } |
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