Method scanNumber

Extension/src/Utility/Text/scanner.ts:737–766

()

    }

    private scanNumber() {
        const start = this.#offset;

        const main = this.scanDigits();
        let decimal: string | undefined;
        let scientific: string | undefined;

        if (this.#ch === CharacterCodes.dot) {
            this.advance();
            decimal = this.scanDigits();
        }

        if (this.#ch === CharacterCodes.E || this.#ch === CharacterCodes.e) {
            this.assert(isDigit(this.#chNext), 'ParseError: Digit expected (0-9)');
            this.advance();
            scientific = this.scanDigits();
        }

        this.text = scientific ?
            decimal ?
                `${main}.${decimal}e${scientific}` :
                `${main}e${scientific}` :
            decimal ?
                `${main}.${decimal}` :
                main;

        // update the position
        this.#column += this.#offset - start;
        return this.kind = Kind.NumericLiteral;
    }

    private scanHexNumber() {
        this.assert(isHexDigit(this.#chNextNext), 'ParseError: Hex Digit expected (0-F,0-f)');