mirror of https://github.com/tc39/test262.git
47 lines
1.1 KiB
JavaScript
47 lines
1.1 KiB
JavaScript
// Copyright (C) 2016 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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esid: sec-regular-expressions-patterns
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es6id: B.1.4
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description: Support for UnicodeIDContinue in IdentityEscape
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info: |
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IdentityEscape[U] ::
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[+U] SyntaxCharacter
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[+U] /
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[~U] SourceCharacter but not c
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---*/
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var match;
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match = /\C/.exec('ABCDE');
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assert.sameValue(match[0], 'C');
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match = /O\PQ/.exec('MNOPQRS');
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assert.sameValue(match[0], 'OPQ');
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match = /\8/.exec('789');
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assert.sameValue(match[0], '8');
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match = /7\89/.exec('67890');
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assert.sameValue(match[0], '789');
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match = /\9/.exec('890');
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assert.sameValue(match[0], '9');
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match = /8\90/.exec('78900');
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assert.sameValue(match[0], '890');
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match = /(.)(.)(.)(.)(.)(.)(.)(.)\8\8/.exec('0123456777');
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assert.sameValue(
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match[0],
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'0123456777',
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'DecimalEscape takes precedence over IdentityEscape (\\8)'
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);
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match = /(.)(.)(.)(.)(.)(.)(.)(.)(.)\9\9/.exec('01234567888');
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assert.sameValue(
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match[0],
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'01234567888',
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'DecimalEscape takes precedence over IdentityEscape (\\9)'
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);
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