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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, 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 library path.utils; | 5 library path.utils; |
6 | 6 |
7 import 'characters.dart' as chars; | 7 import 'characters.dart' as chars; |
8 | 8 |
9 /// Returns whether [char] is the code for an ASCII letter (uppercase or | 9 /// Returns whether [char] is the code for an ASCII letter (uppercase or |
10 /// lowercase). | 10 /// lowercase). |
11 bool isAlphabetic(int char) => | 11 bool isAlphabetic(int char) => |
12 (char >= chars.UPPER_A && char <= chars.UPPER_Z) || | 12 (char >= chars.UPPER_A && char <= chars.UPPER_Z) || |
13 (char >= chars.LOWER_A && char <= chars.LOWER_Z); | 13 (char >= chars.LOWER_A && char <= chars.LOWER_Z); |
14 | 14 |
15 /// Returns whether [char] is the code for an ASCII digit. | 15 /// Returns whether [char] is the code for an ASCII digit. |
16 bool isNumeric(int char) => char >= chars.ZERO && char <= chars.NINE; | 16 bool isNumeric(int char) => char >= chars.ZERO && char <= chars.NINE; |
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