misc.js (1837B)
1 // Copyright (C) 2017 the V8 project authors. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 esid: sec-assertion 6 description: Misc RegExp lookbehind tests 7 info: | 8 The production Assertion :: (?<=Disjunction) evaluates as follows: 9 1. Evaluate Disjunction with -1 as its direction argument to obtain a Matcher m. 10 2. Return an internal Matcher closure that takes two arguments, a State x and a Continuation 11 c, and performs the following steps: 12 a. Let d be a Continuation that always returns its State argument as a successful MatchResult. 13 b. Call m(x, d) and let r be its result. 14 c. If r is failure, return failure. 15 d. Let y be r's State. 16 e. Let cap be y's captures List. 17 f. Let xe be x's endIndex. 18 g. Let z be the State (xe, cap). 19 h. Call c(z) and return its result. 20 features: [regexp-lookbehind] 21 includes: [compareArray.js] 22 ---*/ 23 24 assert.sameValue("abcdef".match(/(?<=$abc)def/), null, "#1"); 25 assert.sameValue("fno".match(/^f.o(?<=foo)$/), null, "#2"); 26 assert.sameValue("foo".match(/^foo(?<!foo)$/), null, "#3"); 27 assert.sameValue("foo".match(/^f.o(?<!foo)$/), null, "#4"); 28 29 assert.compareArray("foo".match(/^foo(?<=foo)$/), ["foo"], "#5"); 30 assert.compareArray("foo".match(/^f.o(?<=foo)$/), ["foo"], "#6"); 31 assert.compareArray("fno".match(/^f.o(?<!foo)$/), ["fno"], "#7"); 32 assert.compareArray("foooo".match(/^foooo(?<=fo+)$/), ["foooo"], "#8"); 33 assert.compareArray("foooo".match(/^foooo(?<=fo*)$/), ["foooo"], "#9"); 34 assert.compareArray(/(abc\1)/.exec("abc"), ["abc", "abc"], "#10"); 35 assert.compareArray(/(abc\1)/.exec("abc\u1234"), ["abc", "abc"], "#11"); 36 assert.compareArray(/(abc\1)/i.exec("abc"), ["abc", "abc"], "#12"); 37 assert.compareArray(/(abc\1)/i.exec("abc\u1234"), ["abc", "abc"], "#13"); 38 39 reportCompare(0, 0);