| // Copyright 2015 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Flags: --harmony-regexp-named-captures |
| |
| // Malformed named captures. |
| assertThrows("/(?<>a)/u"); // Empty name. |
| assertThrows("/(?<aa)/u"); // Unterminated name. |
| assertThrows("/(?<42a>a)/u"); // Name starting with digits. |
| assertThrows("/(?<:a>a)/u"); // Name starting with invalid char. |
| assertThrows("/(?<a:>a)/u"); // Name containing with invalid char. |
| assertThrows("/(?<a>a)(?<a>a)/u"); // Duplicate name. |
| assertThrows("/(?<a>a)(?<b>b)(?<a>a)/u"); // Duplicate name. |
| assertThrows("/\\k<a>/u"); // Invalid reference. |
| assertThrows("/(?<a>a)\\k<ab>/u"); // Invalid reference. |
| assertThrows("/(?<ab>a)\\k<a>/u"); // Invalid reference. |
| assertThrows("/\\k<a>(?<ab>a)/u"); // Invalid reference. |
| |
| // Fallback behavior in non-unicode mode. |
| assertThrows("/(?<>a)/"); |
| assertThrows("/(?<aa)/"); |
| assertThrows("/(?<42a>a)/"); |
| assertThrows("/(?<:a>a)/"); |
| assertThrows("/(?<a:>a)/"); |
| assertThrows("/(?<a>a)(?<a>a)/"); |
| assertThrows("/(?<a>a)(?<b>b)(?<a>a)/"); |
| assertThrows("/(?<a>a)\\k<ab>/"); |
| assertThrows("/(?<ab>a)\\k<a>/"); |
| |
| assertEquals(["k<a>"], "xxxk<a>xxx".match(/\k<a>/)); |
| assertEquals(["k<a"], "xxxk<a>xxx".match(/\k<a/)); |
| |
| // Basic named groups. |
| assertEquals(["a", "a"], "bab".match(/(?<a>a)/u)); |
| assertEquals(["a", "a"], "bab".match(/(?<a42>a)/u)); |
| assertEquals(["a", "a"], "bab".match(/(?<_>a)/u)); |
| assertEquals(["a", "a"], "bab".match(/(?<$>a)/u)); |
| assertEquals(["bab", "a"], "bab".match(/.(?<$>a)./u)); |
| assertEquals(["bab", "a", "b"], "bab".match(/.(?<a>a)(.)/u)); |
| assertEquals(["bab", "a", "b"], "bab".match(/.(?<a>a)(?<b>.)/u)); |
| assertEquals(["bab", "ab"], "bab".match(/.(?<a>\w\w)/u)); |
| assertEquals(["bab", "bab"], "bab".match(/(?<a>\w\w\w)/u)); |
| assertEquals(["bab", "ba", "b"], "bab".match(/(?<a>\w\w)(?<b>\w)/u)); |
| |
| assertEquals("bab".match(/(a)/u), "bab".match(/(?<a>a)/u)); |
| assertEquals("bab".match(/(a)/u), "bab".match(/(?<a42>a)/u)); |
| assertEquals("bab".match(/(a)/u), "bab".match(/(?<_>a)/u)); |
| assertEquals("bab".match(/(a)/u), "bab".match(/(?<$>a)/u)); |
| assertEquals("bab".match(/.(a)./u), "bab".match(/.(?<$>a)./u)); |
| assertEquals("bab".match(/.(a)(.)/u), "bab".match(/.(?<a>a)(.)/u)); |
| assertEquals("bab".match(/.(a)(.)/u), "bab".match(/.(?<a>a)(?<b>.)/u)); |
| assertEquals("bab".match(/.(\w\w)/u), "bab".match(/.(?<a>\w\w)/u)); |
| assertEquals("bab".match(/(\w\w\w)/u), "bab".match(/(?<a>\w\w\w)/u)); |
| assertEquals("bab".match(/(\w\w)(\w)/u), "bab".match(/(?<a>\w\w)(?<b>\w)/u)); |
| |
| assertEquals(["bab", "b"], "bab".match(/(?<b>b).\1/u)); |
| assertEquals(["baba", "b", "a"], "baba".match(/(.)(?<a>a)\1\2/u)); |
| assertEquals(["baba", "b", "a", "b", "a"], |
| "baba".match(/(.)(?<a>a)(?<b>\1)(\2)/u)); |
| assertEquals(["<a", "<"], "<a".match(/(?<lt><)a/u)); |
| assertEquals([">a", ">"], ">a".match(/(?<gt>>)a/u)); |
| |
| // Named references. |
| assertEquals(["bab", "b"], "bab".match(/(?<b>.).\k<b>/u)); |
| assertNull("baa".match(/(?<b>.).\k<b>/u)); |
| |
| // Nested groups. |
| assertEquals(["bab", "bab", "ab", "b"], "bab".match(/(?<a>.(?<b>.(?<c>.)))/u)); |
| |
| // Reference inside group. |
| assertEquals(["bab", "b"], "bab".match(/(?<a>\k<a>\w)../u)); |
| |
| // Reference before group. |
| assertEquals(["bab", "b"], "bab".match(/\k<a>(?<a>b)\w\k<a>/u)); |
| assertEquals(["bab", "b", "a"], "bab".match(/(?<b>b)\k<a>(?<a>a)\k<b>/u)); |