serializer/src/main/java/org/apache/xml/serializer/utils/URI.java [1429:1524]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  public static boolean isWellFormedAddress(String p_address)
  {

    if (p_address == null)
    {
      return false;
    }

    String address = p_address.trim();
    int addrLength = address.length();

    if (addrLength == 0 || addrLength > 255)
    {
      return false;
    }

    if (address.startsWith(".") || address.startsWith("-"))
    {
      return false;
    }

    // rightmost domain label starting with digit indicates IP address
    // since top level domain label can only start with an alpha
    // see RFC 2396 Section 3.2.2
    int index = address.lastIndexOf('.');

    if (address.endsWith("."))
    {
      index = address.substring(0, index).lastIndexOf('.');
    }

    if (index + 1 < addrLength && isDigit(p_address.charAt(index + 1)))
    {
      char testChar;
      int numDots = 0;

      // make sure that 1) we see only digits and dot separators, 2) that
      // any dot separator is preceded and followed by a digit and 
      // 3) that we find 3 dots
      for (int i = 0; i < addrLength; i++)
      {
        testChar = address.charAt(i);

        if (testChar == '.')
        {
          if (!isDigit(address.charAt(i - 1))
                  || (i + 1 < addrLength &&!isDigit(address.charAt(i + 1))))
          {
            return false;
          }

          numDots++;
        }
        else if (!isDigit(testChar))
        {
          return false;
        }
      }

      if (numDots != 3)
      {
        return false;
      }
    }
    else
    {

      // domain labels can contain alphanumerics and '-"
      // but must start and end with an alphanumeric
      char testChar;

      for (int i = 0; i < addrLength; i++)
      {
        testChar = address.charAt(i);

        if (testChar == '.')
        {
          if (!isAlphanum(address.charAt(i - 1)))
          {
            return false;
          }

          if (i + 1 < addrLength &&!isAlphanum(address.charAt(i + 1)))
          {
            return false;
          }
        }
        else if (!isAlphanum(testChar) && testChar != '-')
        {
          return false;
        }
      }
    }

    return true;
  }
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



xalan/src/main/java/org/apache/xml/utils/URI.java [1449:1544]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  public static boolean isWellFormedAddress(String p_address)
  {

    if (p_address == null)
    {
      return false;
    }

    String address = p_address.trim();
    int addrLength = address.length();

    if (addrLength == 0 || addrLength > 255)
    {
      return false;
    }

    if (address.startsWith(".") || address.startsWith("-"))
    {
      return false;
    }

    // rightmost domain label starting with digit indicates IP address
    // since top level domain label can only start with an alpha
    // see RFC 2396 Section 3.2.2
    int index = address.lastIndexOf('.');

    if (address.endsWith("."))
    {
      index = address.substring(0, index).lastIndexOf('.');
    }

    if (index + 1 < addrLength && isDigit(p_address.charAt(index + 1)))
    {
      char testChar;
      int numDots = 0;

      // make sure that 1) we see only digits and dot separators, 2) that
      // any dot separator is preceded and followed by a digit and 
      // 3) that we find 3 dots
      for (int i = 0; i < addrLength; i++)
      {
        testChar = address.charAt(i);

        if (testChar == '.')
        {
          if (!isDigit(address.charAt(i - 1))
                  || (i + 1 < addrLength &&!isDigit(address.charAt(i + 1))))
          {
            return false;
          }

          numDots++;
        }
        else if (!isDigit(testChar))
        {
          return false;
        }
      }

      if (numDots != 3)
      {
        return false;
      }
    }
    else
    {

      // domain labels can contain alphanumerics and '-"
      // but must start and end with an alphanumeric
      char testChar;

      for (int i = 0; i < addrLength; i++)
      {
        testChar = address.charAt(i);

        if (testChar == '.')
        {
          if (!isAlphanum(address.charAt(i - 1)))
          {
            return false;
          }

          if (i + 1 < addrLength &&!isAlphanum(address.charAt(i + 1)))
          {
            return false;
          }
        }
        else if (!isAlphanum(testChar) && testChar != '-')
        {
          return false;
        }
      }
    }

    return true;
  }
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -