| // Copyright (C) 2020 Alexey Shvayka. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: prod-StringLiteral |
| description: > |
| \u is at the end of string, Hex4Digits is required. |
| info: | |
| StringLiteral :: |
| " DoubleStringCharacters_opt " |
| ' SingleStringCharacters_opt ' |
| |
| DoubleStringCharacters :: |
| DoubleStringCharacter DoubleStringCharacters_opt |
| |
| DoubleStringCharacter :: |
| SourceCharacter but not one of " or \ or LineTerminator |
| <LS> |
| <PS> |
| \ EscapeSequence |
| LineContinuation |
| |
| EscapeSequence :: |
| CharacterEscapeSequence |
| 0 [lookahead ∉ DecimalDigit] |
| HexEscapeSequence |
| UnicodeEscapeSequence |
| |
| UnicodeEscapeSequence :: |
| u Hex4Digits |
| u{ CodePoint } |
| |
| Hex4Digits :: |
| HexDigit HexDigit HexDigit HexDigit |
| |
| HexDigit :: one of |
| 0 1 2 3 4 5 6 7 8 9 a b c d e f A B C D E F |
| |
| negative: |
| phase: parse |
| type: SyntaxError |
| ---*/ |
| |
| $DONOTEVALUATE(); |
| |
| "\u" |
