Method readFixedDigits

src/parser/xref-parser.ts:433–448

* Read a fixed number of digits as an integer.

(count: number)

   * Read a fixed number of digits as an integer.
   */
  private readFixedDigits(count: number): number {
    let value = 0;

    for (let i = 0; i < count; i++) {
      const byte = this.scanner.peek();

      if (byte < DIGIT_0 || byte > DIGIT_9) {
        throw new XRefParseError(`Expected digit, got ${String.fromCharCode(byte)}`);
      }

      value = value * 10 + (byte - DIGIT_0);
      this.scanner.advance();
    }

    return value;
  }

  /**
   * Skip space characters (not newlines).