Method readNumber

src/parser/token-reader.ts:196–281

(position: number)

  }

  private readNumber(position: number): NumberToken | KeywordToken {
    const start = this.scanner.position;
    let hasDecimal = false;
    let hasDigit = false;
    let isNegative = false;

    // Handle leading sign
    const firstByte = this.scanner.peek();

    if (firstByte === CHAR_PLUS || firstByte === CHAR_MINUS) {
      isNegative = firstByte === CHAR_MINUS;
      this.scanner.advance();

      // Handle double negative (lenient) - if multiple negatives, ignore all
      // This matches PDFBox behavior: --5 → 5, ---5 → 5
      if (this.scanner.peek() === CHAR_MINUS) {
        isNegative = false;

        while (this.scanner.peek() === CHAR_MINUS) {
          this.scanner.advance();
        }
      }
    }

    // Track where digits start (after signs)
    const digitsStart = this.scanner.position;

    // Handle leading decimal
    if (this.scanner.peek() === CHAR_PERIOD) {
      hasDecimal = true;
      this.scanner.advance();
    }

    // Read digits
    while (true) {
      const byte = this.scanner.peek();

      if (isDigit(byte)) {
        hasDigit = true;
        this.scanner.advance();
        continue;
      }

      if (byte === CHAR_PERIOD && !hasDecimal) {
        hasDecimal = true;
        this.scanner.advance();
        continue;
      }

      break;
    }

    // Read any trailing digits after decimal
    if (hasDecimal) {
      while (isDigit(this.scanner.peek())) {
        hasDigit = true;
        this.scanner.advance();
      }