mirror of https://github.com/tc39/test262.git
26 lines
713 B
JavaScript
26 lines
713 B
JavaScript
// Copyright (C) 2020 Alexey Shvayka. 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: prod-CharacterEscape
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description: >
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Null character escape is permitted in Unicode patterns.
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info: |
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CharacterEscape[U] ::
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ControlEscape
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c ControlLetter
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0 [lookahead ∉ DecimalDigit]
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HexEscapeSequence
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RegExpUnicodeEscapeSequence[?U]
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IdentityEscape[?U]
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DecimalDigit :: one of
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0 1 2 3 4 5 6 7 8 9
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---*/
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var nullChar = String.fromCharCode(0);
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assert.sameValue(/\0/u.exec(nullChar)[0], nullChar);
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assert(/^\0a$/u.test('\0a'));
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assert.sameValue('\x00②'.match(/\0②/u)[0], '\x00②');
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assert.sameValue('\u0000፬'.search(/\0፬$/u), 0);
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