| Ben Murdoch | 61f157c | 2016-09-16 13:49:30 +0100 | [diff] [blame] | 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)); |