mirror of https://github.com/tc39/test262.git
28 lines
848 B
JavaScript
28 lines
848 B
JavaScript
// Copyright 2017 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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description: >
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Named groups in Unicode RegExps have some syntax errors and some
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compatibility escape fallback behavior.
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esid: prod-GroupSpecifier
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features: [regexp-named-groups, regexp-lookbehind]
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includes: [compareArray.js]
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---*/
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assert(/\k<a>/.test("k<a>"));
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assert(/\k<4>/.test("k<4>"));
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assert(/\k<a/.test("k<a"));
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assert(/\k/.test("k"));
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assert(/(?<a>\a)/.test("a"));
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assert(compareArray(["k<a>"], "xxxk<a>xxx".match(/\k<a>/)));
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assert(compareArray(["k<a"], "xxxk<a>xxx".match(/\k<a/)));
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// A couple of corner cases around '\k' as named back-references vs. identity
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// escapes.
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assert(/\k<a>(?<=>)a/.test("k<a>a"));
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assert(/\k<a>(?<!a)a/.test("k<a>a"));
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assert(/\k<a>(<a>x)/.test("k<a><a>x"));
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