Method unescapeString

Extension/src/Utility/Text/scanner.ts:904–953

(text: string)

    }

    private unescapeString(text: string) {
        let result = '';
        let start = 0;
        let pos = 0;
        const end = text.length;

        while (pos < end) {
            let ch = text.charCodeAt(pos);
            if (ch !== CharacterCodes.backslash) {
                pos++;
                continue;
            }

            result += text.substring(start, pos);
            pos++;
            ch = text.charCodeAt(pos);

            switch (ch) {
                case CharacterCodes.r:
                    result += '\r';
                    break;
                case CharacterCodes.n:
                    result += '\n';
                    break;
                case CharacterCodes.t:
                    result += '\t';
                    break;
                case CharacterCodes.singleQuote:
                    result += '\'';
                    break;
                case CharacterCodes.doubleQuote:
                    result += '"';
                    break;
                case CharacterCodes.backslash:
                    result += '\\';
                    break;
                case CharacterCodes.backtick:
                    result += '`';
                    break;
                default:
                    throw new ScannerError('Invalid escape sequence', this.position.line, this.position.column);
            }

            pos++;
            start = pos;
        }

        result += text.substring(start, pos);
        return result;
    }

    scanIdentifier() {
        this.text = this.scanUntil((ch) => !isIdentifierPart(ch));