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| 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 |
| 3 // found in the LICENSE file. |
| 4 |
| 5 // Flags: --harmony-regexp-named-captures |
| 6 |
| 7 // Malformed named captures. |
| 8 assertThrows("/(?<>a)/u"); // Empty name. |
| 9 assertThrows("/(?<aa)/u"); // Unterminated name. |
| 10 assertThrows("/(?<42a>a)/u"); // Name starting with digits. |
| 11 assertThrows("/(?<:a>a)/u"); // Name starting with invalid char. |
| 12 assertThrows("/(?<a:>a)/u"); // Name containing with invalid char. |
| 13 assertThrows("/(?<a>a)(?<a>a)/u"); // Duplicate name. |
| 14 assertThrows("/(?<a>a)(?<b>b)(?<a>a)/u"); // Duplicate name. |
| 15 assertThrows("/\\k<a>/u"); // Invalid reference. |
| 16 assertThrows("/(?<a>a)\\k<ab>/u"); // Invalid reference. |
| 17 assertThrows("/(?<ab>a)\\k<a>/u"); // Invalid reference. |
| 18 assertThrows("/\\k<a>(?<ab>a)/u"); // Invalid reference. |
| 19 |
| 20 // Fallback behavior in non-unicode mode. |
| 21 assertThrows("/(?<>a)/"); |
| 22 assertThrows("/(?<aa)/"); |
| 23 assertThrows("/(?<42a>a)/"); |
| 24 assertThrows("/(?<:a>a)/"); |
| 25 assertThrows("/(?<a:>a)/"); |
| 26 assertThrows("/(?<a>a)(?<a>a)/"); |
| 27 assertThrows("/(?<a>a)(?<b>b)(?<a>a)/"); |
| 28 assertThrows("/(?<a>a)\\k<ab>/"); |
| 29 assertThrows("/(?<ab>a)\\k<a>/"); |
| 30 |
| 31 assertEquals(["k<a>"], "xxxk<a>xxx".match(/\k<a>/)); |
| 32 assertEquals(["k<a"], "xxxk<a>xxx".match(/\k<a/)); |
| 33 |
| 34 // Basic named groups. |
| 35 assertEquals(["a", "a"], "bab".match(/(?<a>a)/u)); |
| 36 assertEquals(["a", "a"], "bab".match(/(?<a42>a)/u)); |
| 37 assertEquals(["a", "a"], "bab".match(/(?<_>a)/u)); |
| 38 assertEquals(["a", "a"], "bab".match(/(?<$>a)/u)); |
| 39 assertEquals(["bab", "a"], "bab".match(/.(?<$>a)./u)); |
| 40 assertEquals(["bab", "a", "b"], "bab".match(/.(?<a>a)(.)/u)); |
| 41 assertEquals(["bab", "a", "b"], "bab".match(/.(?<a>a)(?<b>.)/u)); |
| 42 assertEquals(["bab", "ab"], "bab".match(/.(?<a>\w\w)/u)); |
| 43 assertEquals(["bab", "bab"], "bab".match(/(?<a>\w\w\w)/u)); |
| 44 assertEquals(["bab", "ba", "b"], "bab".match(/(?<a>\w\w)(?<b>\w)/u)); |
| 45 |
| 46 assertEquals("bab".match(/(a)/u), "bab".match(/(?<a>a)/u)); |
| 47 assertEquals("bab".match(/(a)/u), "bab".match(/(?<a42>a)/u)); |
| 48 assertEquals("bab".match(/(a)/u), "bab".match(/(?<_>a)/u)); |
| 49 assertEquals("bab".match(/(a)/u), "bab".match(/(?<$>a)/u)); |
| 50 assertEquals("bab".match(/.(a)./u), "bab".match(/.(?<$>a)./u)); |
| 51 assertEquals("bab".match(/.(a)(.)/u), "bab".match(/.(?<a>a)(.)/u)); |
| 52 assertEquals("bab".match(/.(a)(.)/u), "bab".match(/.(?<a>a)(?<b>.)/u)); |
| 53 assertEquals("bab".match(/.(\w\w)/u), "bab".match(/.(?<a>\w\w)/u)); |
| 54 assertEquals("bab".match(/(\w\w\w)/u), "bab".match(/(?<a>\w\w\w)/u)); |
| 55 assertEquals("bab".match(/(\w\w)(\w)/u), "bab".match(/(?<a>\w\w)(?<b>\w)/u)); |
| 56 |
| 57 assertEquals(["bab", "b"], "bab".match(/(?<b>b).\1/u)); |
| 58 assertEquals(["baba", "b", "a"], "baba".match(/(.)(?<a>a)\1\2/u)); |
| 59 assertEquals(["baba", "b", "a", "b", "a"], |
| 60 "baba".match(/(.)(?<a>a)(?<b>\1)(\2)/u)); |
| 61 assertEquals(["<a", "<"], "<a".match(/(?<lt><)a/u)); |
| 62 assertEquals([">a", ">"], ">a".match(/(?<gt>>)a/u)); |
| 63 |
| 64 // Named references. |
| 65 assertEquals(["bab", "b"], "bab".match(/(?<b>.).\k<b>/u)); |
| 66 assertNull("baa".match(/(?<b>.).\k<b>/u)); |
| 67 |
| 68 // Nested groups. |
| 69 assertEquals(["bab", "bab", "ab", "b"], "bab".match(/(?<a>.(?<b>.(?<c>.)))/u)); |
| 70 |
| 71 // Reference inside group. |
| 72 assertEquals(["bab", "b"], "bab".match(/(?<a>\k<a>\w)../u)); |
| 73 |
| 74 // Reference before group. |
| 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)); |
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