1 // Copyright 2016 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-lookbehind 6 7 var r = /./ug; 8 assertEquals(["\ud800\udc00"], r.exec("\ud800\udc00\ud801\udc01")); 9 assertEquals(2, r.lastIndex); 10 r.lastIndex = 1; 11 assertEquals(["\ud800\udc00"], r.exec("\ud800\udc00\ud801\udc01")); 12 assertEquals(2, r.lastIndex); 13 assertEquals(["\ud801\udc01"], r.exec("\ud800\udc00\ud801\udc01")); 14 r.lastIndex = 3; 15 assertEquals(["\ud801\udc01"], r.exec("\ud800\udc00\ud801\udc01")); 16 assertEquals(4, r.lastIndex); 17 r.lastIndex = 4; 18 assertNull(r.exec("\ud800\udc00\ud801\udc01")); 19 assertEquals(0, r.lastIndex); 20 r.lastIndex = 5; 21 assertNull(r.exec("\ud800\udc00\ud801\udc01")); 22 assertEquals(0, r.lastIndex); 23 24 r.lastIndex = 3; 25 assertEquals(["\ud802"], r.exec("\ud800\udc00\ud801\ud802")); 26 r.lastIndex = 4; 27 assertNull(r.exec("\ud800\udc00\ud801\ud802")); 28 29 r = /./g; 30 assertEquals(["\ud800"], r.exec("\ud800\udc00\ud801\udc01")); 31 assertEquals(1, r.lastIndex); 32 assertEquals(["\udc00"], r.exec("\ud800\udc00\ud801\udc01")); 33 assertEquals(2, r.lastIndex); 34 assertEquals(["\ud801"], r.exec("\ud800\udc00\ud801\udc01")); 35 assertEquals(3, r.lastIndex); 36 assertEquals(["\udc01"], r.exec("\ud800\udc00\ud801\udc01")); 37 assertEquals(4, r.lastIndex); 38 assertNull(r.exec("\ud800\udc00\ud801\udc01")); 39 assertEquals(0, r.lastIndex); 40 r.lastIndex = 1; 41 assertEquals(["\udc00"], r.exec("\ud800\udc00\ud801\udc01")); 42 assertEquals(2, r.lastIndex); 43 44 // ------------------------ 45 46 r = /^./ug; 47 assertEquals(["\ud800\udc00"], r.exec("\ud800\udc00\ud801\udc01")); 48 assertEquals(2, r.lastIndex); 49 r.lastIndex = 1; 50 assertEquals(["\ud800\udc00"], r.exec("\ud800\udc00\ud801\udc01")); 51 assertEquals(2, r.lastIndex); 52 assertNull(r.exec("\ud800\udc00\ud801\udc01")); 53 assertEquals(0, r.lastIndex); 54 r.lastIndex = 3; 55 assertNull(r.exec("\ud800\udc00\ud801\udc01")); 56 assertEquals(0, r.lastIndex); 57 r.lastIndex = 4; 58 assertNull(r.exec("\ud800\udc00\ud801\udc01")); 59 assertEquals(0, r.lastIndex); 60 r.lastIndex = 5; 61 assertNull(r.exec("\ud800\udc00\ud801\udc01")); 62 assertEquals(0, r.lastIndex); 63 64 r = /^./g; 65 assertEquals(["\ud800"], r.exec("\ud800\udc00\ud801\udc01")); 66 assertEquals(1, r.lastIndex); 67 assertNull(r.exec("\ud800\udc00\ud801\udc01")); 68 assertEquals(0, r.lastIndex); 69 r.lastIndex = 3; 70 assertNull(r.exec("\ud800\udc00\ud801\udc01")); 71 assertEquals(0, r.lastIndex); 72 73 //------------------------ 74 75 r = /(?:(^.)|.)/ug; 76 assertEquals(["\ud800\udc00", "\ud800\udc00"], 77 r.exec("\ud800\udc00\ud801\udc01")); 78 assertEquals(2, r.lastIndex); 79 r.lastIndex = 1; 80 assertEquals(["\ud800\udc00", "\ud800\udc00"], 81 r.exec("\ud800\udc00\ud801\udc01")); 82 assertEquals(2, r.lastIndex); 83 assertEquals(["\ud801\udc01", undefined], r.exec("\ud800\udc00\ud801\udc01")); 84 r.lastIndex = 3; 85 assertEquals(["\ud801\udc01", undefined], r.exec("\ud800\udc00\ud801\udc01")); 86 r.lastIndex = 4; 87 assertNull(r.exec("\ud800\udc00\ud801\udc01")); 88 r.lastIndex = 5; 89 assertNull(r.exec("\ud800\udc00\ud801\udc01")); 90 91 r.lastIndex = 3; 92 assertEquals(["\ud802", undefined], r.exec("\ud800\udc00\ud801\ud802")); 93 r.lastIndex = 4; 94 assertNull(r.exec("\ud800\udc00\ud801\ud802")); 95 96 r = /(?:(^.)|.)/g; 97 assertEquals(["\ud800", "\ud800"], 98 r.exec("\ud800\udc00\ud801\udc01")); 99 assertEquals(1, r.lastIndex); 100 assertEquals(["\udc00", undefined], r.exec("\ud800\udc00\ud801\udc01")); 101 assertEquals(2, r.lastIndex); 102 r.lastIndex = 3; 103 assertEquals(["\udc01", undefined], r.exec("\ud800\udc00\ud801\udc01")); 104 assertEquals(4, r.lastIndex); 105
