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| 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 | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 library path.utils; | |
| 6 | |
| 7 /// Returns whether [char] is the code for an ASCII letter (uppercase or | |
| 8 /// lowercase). | |
| 9 bool isAlphabetic(int char) => | |
| 10 (char >= 0x41 && char <= 0x5a) || (char >= 0x61 && char <= 0x7a); | |
| 11 | |
| 12 /// Returns whether [char] is the code for an ASCII digit. | |
| 13 bool isNumeric(int char) => char >= 0x30 && char <= 0x39; | |
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