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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Flags: --harmony-regexp-named-captures | 5 // Flags: --harmony-regexp-named-captures |
6 | 6 |
7 // Malformed named captures. | 7 // Malformed named captures. |
8 assertThrows("/(?<>a)/u"); // Empty name. | 8 assertThrows("/(?<>a)/u"); // Empty name. |
9 assertThrows("/(?<aa)/u"); // Unterminated name. | 9 assertThrows("/(?<aa)/u"); // Unterminated name. |
10 assertThrows("/(?<42a>a)/u"); // Name starting with digits. | 10 assertThrows("/(?<42a>a)/u"); // Name starting with digits. |
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67 | 67 |
68 // Nested groups. | 68 // Nested groups. |
69 assertEquals(["bab", "bab", "ab", "b"], "bab".match(/(?<a>.(?<b>.(?<c>.)))/u)); | 69 assertEquals(["bab", "bab", "ab", "b"], "bab".match(/(?<a>.(?<b>.(?<c>.)))/u)); |
70 | 70 |
71 // Reference inside group. | 71 // Reference inside group. |
72 assertEquals(["bab", "b"], "bab".match(/(?<a>\k<a>\w)../u)); | 72 assertEquals(["bab", "b"], "bab".match(/(?<a>\k<a>\w)../u)); |
73 | 73 |
74 // Reference before group. | 74 // Reference before group. |
75 assertEquals(["bab", "b"], "bab".match(/\k<a>(?<a>b)\w\k<a>/u)); | 75 assertEquals(["bab", "b"], "bab".match(/\k<a>(?<a>b)\w\k<a>/u)); |
76 assertEquals(["bab", "b", "a"], "bab".match(/(?<b>b)\k<a>(?<a>a)\k<b>/u)); | 76 assertEquals(["bab", "b", "a"], "bab".match(/(?<b>b)\k<a>(?<a>a)\k<b>/u)); |
| 77 |
| 78 // Reference properties. |
| 79 assertEquals("a", /(?<a>a)(?<b>b)\k<a>/u.exec("aba").a); |
| 80 assertEquals("b", /(?<a>a)(?<b>b)\k<a>/u.exec("aba").b); |
| 81 assertEquals(undefined, /(?<a>a)(?<b>b)\k<a>/u.exec("aba").c); |
| 82 assertFalse(/(?<a>a)(?<b>b)\k<a>/u.exec("aba").hasOwnProperty("c")); |
| 83 assertEquals(undefined, /(?<a>a)(?<b>b)\k<a>|(?<c>c)/u.exec("aba").c); |
| 84 assertTrue(/(?<a>a)(?<b>b)\k<a>|(?<c>c)/u.exec("aba").hasOwnProperty("c")); |
| 85 |
| 86 // Unicode names. |
| 87 assertEquals("a", /(?<π>a)/u.exec("bab").π); |
| 88 assertEquals("a", /(?<\u{03C0}>a)/u.exec("bab").\u03C0); |
| 89 assertEquals("a", /(?<$>a)/u.exec("bab").$); |
| 90 assertEquals("a", /(?<_>a)/u.exec("bab")._); |
| 91 assertEquals("a", /(?<$𐒤>a)/u.exec("bab").$𐒤); |
| 92 assertEquals("a", /(?<_\u200C>a)/u.exec("bab")._\u200C); |
| 93 assertEquals("a", /(?<_\u200D>a)/u.exec("bab")._\u200D); |
| 94 assertEquals("a", /(?<ಠ_ಠ>a)/u.exec("bab").ಠ_ಠ); |
| 95 assertThrows('/(?<❤>a)/u'); |
| 96 assertThrows('/(?<𐒤>a)/u'); // ID_Continue but not ID_Start. |
| 97 |
| 98 // Capture name conflicts. |
| 99 assertThrows(() => /(?<index>a)/u); |
| 100 assertThrows(() => /(?<input>a)/u); |
| 101 assertThrows(() => /(?<length>a)/u); |
| 102 |
| 103 assertEquals("a", /(?<inde>a)/u.exec("a").inde); |
| 104 assertEquals("a", /(?<indexi>a)/u.exec("a").indexi); |
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