| // Copyright (C) 2016 the V8 project authors. All rights reserved. | |
| // This code is governed by the BSD license found in the LICENSE file. | |
| /*--- | |
| esid: sec-patterns | |
| es6id: 21.2.1 | |
| description: Legacy Octal Escape Sequence not supported with `u` flag | |
| info: | | |
| The `u` flag precludes the use of LegacyOctalEscapeSequence irrespective | |
| of the presence of Annex B extensions. | |
| CharacterEscape [U] :: | |
| ControlEscape | |
| c ControlLetter | |
| 0[lookahead ∉ DecimalDigit] | |
| HexEscapeSequence | |
| RegExpUnicodeEscapeSequence[?U] | |
| IdentityEscape[?U] | |
| negative: SyntaxError | |
| ---*/ | |
| /\1/u; |