@GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

  /**
   * Parses the specified string as a signed decimal integer value. The ASCII character {@code '-'}
   * (<code>'&#92;u002D'</code>) is recognized as the minus sign.
   *
   * <p>Unlike {@link Integer#parseInt(String)}, this method returns {@code null} instead of

    static int digit(char c) {
      return (c < 128) ? asciiDigits[c] : -1;
    }
  }

  /**
   * Parses the specified string as a signed decimal long value. The ASCII character {@code '-'} (
   * <code>'&#92;u002D'</code>) is recognized as the minus sign.
   *
   * <p>Unlike {@link Long#parseLong(String)}, this method returns {@code null} instead of throwing

  }

  /**
   * Parses the specified string as a single-precision floating point value. The ASCII character
   * {@code '-'} (<code>'&#92;u002D'</code>) is recognized as the minus sign.
   *
   * <p>Unlike {@link Float#parseFloat(String)}, this method returns {@code null} instead of

    return
    java.util.regex.Pattern
        .compile(fpPattern);
  }

  /**
   * Parses the specified string as a double-precision floating point value. The ASCII character
   * {@code '-'} (<code>'&#92;u002D'</code>) is recognized as the minus sign.
   *
   * <p>Unlike {@link Double#parseDouble(String)}, this method returns {@code null} instead of

  for (i in name.indices) {
    val c = name[i]
    require(c in '\u0021'..'\u007e') {
      "Unexpected char 0x${c.charCode()} at $i in header name: $name"
    }
  }
}

internal fun headersCheckValue(
  value: String,
  name: String,
) {
  for (i in value.indices) {
    val c = value[i]
    require(c == '\t' || c in '\u0020'..'\u007e') {
      "Unexpected char 0x${c.charCode()} at $i in $name value" +

\u0009 => \u0020
\u000A => \u0020
\u000B => \u0020
\u000C => \u0020
\u000D => \u0020
\u001C => \u0020
\u001D => \u0020
\u001E => \u0020
\u001F => \u0020
\u00A0 => \u0020
\u1680 => \u0020
\u180E => \u0020
\u2000 => \u0020
\u2001 => \u0020
\u2002 => \u0020
\u2003 => \u0020
\u2004 => \u0020
\u2005 => \u0020
\u2006 => \u0020
\u2007 => \u0020
\u2008 => \u0020
\u2009 => \u0020
\u200A => \u0020
\u200B => \u0020

\u0009 => \u0020
\u000A => \u0020
\u000B => \u0020
\u000C => \u0020
\u000D => \u0020
\u001C => \u0020
\u001D => \u0020
\u001E => \u0020
\u001F => \u0020
\u00A0 => \u0020
\u1680 => \u0020
\u180E => \u0020
\u2000 => \u0020
\u2001 => \u0020
\u2002 => \u0020
\u2003 => \u0020
\u2004 => \u0020
\u2005 => \u0020
\u2006 => \u0020
\u2007 => \u0020
\u2008 => \u0020
\u2009 => \u0020
\u200A => \u0020
\u200B => \u0020

    private static final Pattern ENCODED_TRAVERSAL = Pattern.compile("%2e%2e|%252e%252e", Pattern.CASE_INSENSITIVE);
    private static final Pattern UNICODE_TRAVERSAL = Pattern.compile("\\\\u002e\\\\u002e|\\\\u002E\\\\u002E", Pattern.CASE_INSENSITIVE);

    // Dangerous characters and sequences
    private static final Pattern NULL_BYTE = Pattern.compile("\\x00|%00");

     * StringUtils.isAsciiPrintable("Ceki")   = true
     * StringUtils.isAsciiPrintable("ab2c")   = true
     * StringUtils.isAsciiPrintable("!ab-c~") = true
     * StringUtils.isAsciiPrintable("\u0020") = true
     * StringUtils.isAsciiPrintable("\u0021") = true
     * StringUtils.isAsciiPrintable("\u007e") = true
     * StringUtils.isAsciiPrintable("\u007f") = false
     * StringUtils.isAsciiPrintable("Ceki G\u00fclc\u00fc") = false
     * </pre>

        });
    }

    @Test
    public void testDirectoryTraversalUnicode() throws Exception {
        assertThrows(SmbException.class, () -> {
            validator.validatePath("\\share\\\\u002e\\u002e\\folder");
        });
    }

    @Test
    public void testNullByte() throws Exception {
        assertThrows(SmbException.class, () -> {
            validator.validatePath("\\share\\file\0.txt");
        });