Strict mode Passingnon-Strict mode Passing
Features:
- ∅
// Copyright (C) 2020 Alexey Shvayka. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-atom description: > Literal astral symbols within inverted CharacterClass. info: | The production Atom :: CharacterClass evaluates as follows: 1. Evaluate CharacterClass to obtain a CharSet A and a Boolean invert. 2. Call CharacterSetMatcher(A, invert, direction) and return its Matcher result. Runtime Semantics: CharacterSetMatcher ( A, invert, direction ) 1. Return an internal Matcher closure that takes two arguments, a State x and a Continuation c, and performs the following steps: [...] f. Let cc be Canonicalize(ch). g. If invert is false, then [...] h. Else, i. Assert: invert is true. ii. If there exists a member a of set A such that Canonicalize(a) is cc, return failure. ---*/ assert.sameValue(/^[^❤️]$/u.exec("❤️"), null); assert.sameValue(/^[^🧡]/u.exec("🧡"), null); assert.sameValue(/[^💛]$/u.exec("💛"), null); assert.sameValue(/[^💚]/u.exec("💚"), null);