public RString(byte[] buffer, CharEncoding encoding)
        {
            Encoding enc;

            switch (encoding)
            {
            case CharEncoding.Native:
                enc = Encoding.GetEncoding("us-ascii");
                break;

            case CharEncoding.Utf8:
                enc = Encoding.GetEncoding("utf-8");
                break;

            case CharEncoding.Latin1:
                enc = Encoding.GetEncoding("iso-8859-1");
                break;

            case CharEncoding.Bytes:
                enc = Encoding.GetEncoding("utf-8");
                break;

            default:
                throw new ArgumentOutOfRangeException();
            }

            _text = enc.GetString(buffer, 0, buffer.Length);
        }
Ejemplo n.º 2
0
        private object DecodeBytes(byte[] data, int fieldIndex)
        {
            var field = Fields[fieldIndex];

            try
            {
                var type = field.DbfType;
                if (type == DbfType.Double || type == DbfType.Numeric)
                {
                    return(DecodeFloatPoint(data, field, type));
                }
                if (type == DbfType.Date)
                {
                    return(DecodeDate(data));
                }
                if (type == DbfType.Logical)
                {
                    return(DecodeLogical(data));
                }
                if (type == DbfType.Memo)
                {
                    return(DecodeMemo(data, fieldIndex));
                }
                return(CharEncoding.GetString(data, 0, field.FieldLength).TrimEnd());
            }
            catch (Exception e)
            {
                var msg = String.Format("Unable to decode field [{0}], value <{1}>", field.Name,
                                        CharEncoding.GetString(data, 0, field.FieldLength));
                throw new DbfReaderException(msg, e);
            }
        }
Ejemplo n.º 3
0
 public StreamInImpl(Stream stream, CharEncoding encoding, int tabsize)
 {
     this.stream   = stream;
     pushed        = false;
     c             = (int)'\x0000';
     tabs          = 0;
     this.tabsize  = tabsize;
     curline       = 1;
     curcol        = 1;
     this.encoding = encoding;
     state         = FSM_ASCII;
     endOfStream   = false;
 }
Ejemplo n.º 4
0
 public StreamInImpl(Stream stream, CharEncoding encoding, int tabsize)
 {
     Stream = stream;
     Pushed = false;
     Character = '\x0000';
     Tabs = 0;
     TabSize = tabsize;
     CursorLine = 1;
     CursorColumn = 1;
     Encoding = encoding;
     State = FSM_ASCII;
     EndOfStream = false;
 }
Ejemplo n.º 5
0
 public StreamInImpl(Stream stream, CharEncoding encoding, int tabsize)
 {
     Stream       = stream;
     Pushed       = false;
     Character    = '\x0000';
     Tabs         = 0;
     TabSize      = tabsize;
     CursorLine   = 1;
     CursorColumn = 1;
     Encoding     = encoding;
     State        = FSM_ASCII;
     EndOfStream  = false;
 }
Ejemplo n.º 6
0
 public StreamInImpl(Stream stream, CharEncoding encoding, int tabsize)
 {
     this.stream = stream;
     pushed = false;
     c = (int) '\x0000';
     tabs = 0;
     this.tabsize = tabsize;
     curline = 1;
     curcol = 1;
     this.encoding = encoding;
     state = FSM_ASCII;
     endOfStream = false;
 }
Ejemplo n.º 7
0
        private void LoadControllers()
        {
            const string EncoderRegexFmt = @"\p{Is{0}}";
            Array        encodings       = Enum.GetValues(typeof(CharEncoding));

            _detectors = new Dictionary <CharEncoding, Regex>(encodings.Length);
            foreach (object encoding in encodings)
            {
                CharEncoding encd = (CharEncoding)encoding;
                if (encd != CharEncoding.Unknown)
                {
                    _detectors.Add(encd, new Regex(string.Format(EncoderRegexFmt, encd.ToString())));
                }
            }
        }
Ejemplo n.º 8
0
        private object DecodeDate(byte[] data)
        {
            var strYear  = CharEncoding.GetString(data, 0, 4);
            var strMonth = CharEncoding.GetString(data, 4, 2);
            var strDay   = CharEncoding.GetString(data, 6, 2);

            object ret = null;
            int    year, month, day;

            if (Int32.TryParse(strYear, out year) && Int32.TryParse(strMonth, out month) &&
                Int32.TryParse(strDay, out day))
            {
                ret = new DateTime(year, month, day);
            }
            return(ret);
        }
Ejemplo n.º 9
0
        /// <summary>
        /// The ToChars.
        /// </summary>
        /// <param name="ba">The ba<see cref="Byte[]"/>.</param>
        /// <param name="tf">The tf<see cref="CharEncoding"/>.</param>
        /// <returns>The <see cref="Char[]"/>.</returns>
        public static Char[] ToChars(this Byte[] ba, CharEncoding tf = CharEncoding.ASCII)
        {
            switch (tf)
            {
            case CharEncoding.ASCII:
                return(Encoding.ASCII.GetChars(ba));

            case CharEncoding.UTF8:
                return(Encoding.UTF8.GetChars(ba));

            case CharEncoding.Unicode:
                return(Encoding.Unicode.GetChars(ba));

            default:
                return(Encoding.ASCII.GetChars(ba));
            }
        }
Ejemplo n.º 10
0
        /// <summary>
        /// The ToBytes.
        /// </summary>
        /// <param name="ca">The ca<see cref="String"/>.</param>
        /// <param name="tf">The tf<see cref="CharEncoding"/>.</param>
        /// <returns>The <see cref="Byte[]"/>.</returns>
        public static Byte[] ToBytes(this String ca, CharEncoding tf = CharEncoding.ASCII)
        {
            switch (tf)
            {
            case CharEncoding.ASCII:
                return(Encoding.ASCII.GetBytes(ca));

            case CharEncoding.UTF8:
                return(Encoding.UTF8.GetBytes(ca));

            case CharEncoding.Unicode:
                return(Encoding.Unicode.GetBytes(ca));

            default:
                return(Encoding.ASCII.GetBytes(ca));
            }
        }
Ejemplo n.º 11
0
        private object DecodeFloatPoint(byte[] data, DbfField field, DbfType type)
        {
            object ret = null;
            var    str = CharEncoding.GetString(data, 0, field.FieldLength);

            if (str.Length != 0)
            {
                var last = str[str.Length - 1];
                if (last != ' ' && last != '?')
                {
                    var culture = CultureInfo.InvariantCulture;
                    str = str.Replace(',', '.');
                    ret = type == DbfType.Double
                                                      ? (object)Double.Parse(str, Styles, culture)
                                                          : Decimal.Parse(str, Styles, culture);
                }
            }
            return(ret);
        }
Ejemplo n.º 12
0
        private object DecodeMemo(byte[] data, int fieldIndex)
        {
            if (DbtReader == null)
            {
                throw new DbfReaderException("Unable to read memo file");
            }
            var str = CharEncoding.GetString(data, 0, Fields[fieldIndex].FieldLength);

            if (string.IsNullOrWhiteSpace(str))
            {
                return(null);
            }
            long index;

            if (!long.TryParse(str.Trim(), out index))
            {
                return(null);
            }
            // reading memo file
            DbtReader.BaseStream.Seek((index + 1) << 9, SeekOrigin.Begin);

            var ms   = new MemoryStream();
            var xCnt = 0;

            // read until [0x1a, 0x1a] in file
            while (xCnt < 2)
            {
                var bt = DbtReader.ReadByte();
                ms.WriteByte(bt);
                xCnt = bt == 0x1a ? xCnt + 1 : 0;
            }
            var memo      = ms.ToArray();
            var retString = CharEncoding.GetString(new byte[] { 0x8d, 0x0a });

            return(CharEncoding.GetString(memo, 0, memo.Length - 2).Replace(retString, string.Empty));
        }
Ejemplo n.º 13
0
        internal (Object[], long) NextRecord(IEnumerable <int> selectIndexes, IList <int> sortedIndexes)
        {
            if (_IsClosed)
            {
                throw new DBFException("Source is not open");
            }

            var position             = _BaseStream.Position;
            var tOrderdSelectIndexes = sortedIndexes;
            var recordObjects        = new Object[_Header.FieldArray.Length];

            try
            {
                var isDeleted = false;
                do
                {
                    if (isDeleted)
                    {
                        position += _BinaryRead.ReadBytes(_Header.RecordLength - 1).Length;
                    }

                    int t_byte = _BinaryRead.ReadByte();
                    if (t_byte == DBFFieldType.EndOfData)
                    {
                        return(null, position);
                    }

                    position++;
                    isDeleted = (t_byte == '*');
                } while (isDeleted);

                position = position - 1;

                var j = 0;
                var k = -1;
                for (var i = 0; i < _Header.FieldArray.Length; i++)
                {
                    if (tOrderdSelectIndexes.Count == j && j != 0
                        ||
                        (tOrderdSelectIndexes.Count > j && tOrderdSelectIndexes[j] > i && tOrderdSelectIndexes[j] != k))
                    {
                        _BaseStream.Seek(_Header.FieldArray[i].FieldLength, SeekOrigin.Current);
                        continue;
                    }
                    if (tOrderdSelectIndexes.Count > j)
                    {
                        k = tOrderdSelectIndexes[j];
                    }
                    j++;


                    switch (_Header.FieldArray[i].DataType)
                    {
                    case NativeDbType.UnicodeChar:

                        var b_arrayU = new byte[
                            _Header.FieldArray[i].FieldLength
                                       ];
                        _BinaryRead.Read(b_arrayU, 0, b_arrayU.Length);

                        recordObjects[i] = _UCharEncoding.GetString(b_arrayU).TrimEnd('\0', ' ');
                        break;

                    case NativeDbType.Char:

                        var b_array = new byte[
                            _Header.FieldArray[i].FieldLength
                                      ];
                        _BinaryRead.Read(b_array, 0, b_array.Length);

                        recordObjects[i] = CharEncoding.GetString(b_array).TrimEnd();
                        break;

                    case NativeDbType.Date:

                        var t_byte_year = new byte[4];
                        _BinaryRead.Read(t_byte_year,
                                         0,
                                         t_byte_year.Length);

                        var t_byte_month = new byte[2];
                        _BinaryRead.Read(t_byte_month,
                                         0,
                                         t_byte_month.Length);

                        var t_byte_day = new byte[2];
                        _BinaryRead.Read(t_byte_day,
                                         0,
                                         t_byte_day.Length);

                        try
                        {
                            var tYear  = CharEncoding.GetString(t_byte_year);
                            var tMonth = CharEncoding.GetString(t_byte_month);
                            var tDay   = CharEncoding.GetString(t_byte_day);

                            int tIntYear, tIntMonth, tIntDay;
                            if (int.TryParse(tYear, out tIntYear) &&
                                int.TryParse(tMonth, out tIntMonth) &&
                                int.TryParse(tDay, out tIntDay))
                            {
                                recordObjects[i] = new DateTime(
                                    tIntYear,
                                    tIntMonth,
                                    tIntDay);
                            }
                            else
                            {
                                recordObjects[i] = null;
                            }
                        }
                        catch (ArgumentOutOfRangeException)
                        {
                            /* this field may be empty or may have improper value set */
                            recordObjects[i] = null;
                        }

                        break;

                    case NativeDbType.Float:

                        try
                        {
                            var t_float = new byte[
                                _Header.FieldArray[i].FieldLength
                                          ];
                            _BinaryRead.Read(t_float, 0, t_float.Length);
                            var tParsed = CharEncoding.GetString(t_float);
                            var tLast   = tParsed.Substring(tParsed.Length - 1);
                            if (tParsed.Length > 0 &&
                                tLast != " " &&
                                tLast != NullSymbol)
                            {
                                recordObjects[i] = double.Parse(tParsed,
                                                                NumberStyles.Float | NumberStyles.AllowLeadingWhite,
                                                                NumberFormatInfo.InvariantInfo);
                            }
                            else
                            {
                                recordObjects[i] = null;
                            }
                        }
                        catch (FormatException e)
                        {
                            throw new DBFException("Failed to parse Float",
                                                   e);
                        }

                        break;

                    case NativeDbType.Numeric:

                        try
                        {
                            var t_numeric = new byte[
                                _Header.FieldArray[i].FieldLength
                                            ];
                            _BinaryRead.Read(t_numeric,
                                             0,
                                             t_numeric.Length);
                            var tParsed =
                                CharEncoding.GetString(t_numeric);
                            var tLast = tParsed.Substring(tParsed.Length - 1);
                            if (tParsed.Length > 0 &&
                                tLast != " " &&
                                tLast != NullSymbol)
                            {
                                recordObjects[i] = Decimal.Parse(tParsed,
                                                                 NumberStyles.Float | NumberStyles.AllowLeadingWhite,
                                                                 NumberFormatInfo.InvariantInfo);
                            }
                            else
                            {
                                recordObjects[i] = null;
                            }
                        }
                        catch (FormatException e)
                        {
                            throw new DBFException(
                                      "Failed to parse Number", e);
                        }

                        break;

                    case NativeDbType.Logical:

                        var t_logical = _BinaryRead.ReadByte();
                        //todo find out whats really valid
                        if (t_logical == 'Y' || t_logical == 't' ||
                            t_logical == 'T' ||
                            t_logical == 't')
                        {
                            recordObjects[i] = true;
                        }
                        else if (t_logical == DBFFieldType.UnknownByte)
                        {
                            recordObjects[i] = DBNull.Value;
                        }
                        else
                        {
                            recordObjects[i] = false;
                        }
                        break;

                    case NativeDbType.Memo:
                        //if (String.IsNullOrEmpty(streamMemoLoc) && streamMemo == null)
                        if (_StreamMemo == null)
                        {
                            throw new Exception("Memo Location Not Set");
                        }


                        var tRawMemoPointer = _BinaryRead.ReadBytes(_Header.FieldArray[i].FieldLength);
                        var tMemoPoiner     = CharEncoding.GetString(tRawMemoPointer);
                        if (string.IsNullOrEmpty(tMemoPoiner))
                        {
                            recordObjects[i] = DBNull.Value;
                            break;
                        }
                        long tBlock;
                        if (!long.TryParse(tMemoPoiner, out tBlock))
                        {
                            //Because Memo files can vary and are often the least importat data,
                            //we will return null when it doesn't match our format.
                            recordObjects[i] = DBNull.Value;
                            break;
                        }


                        //recordObjects[i] = new MemoValue(tBlock, this, streamMemoLoc, GetLazyStreamFromLocation());
                        recordObjects[i] = new MemoValue(tBlock, this, _StreamMemo);
                        break;

                    default:
                        _BinaryRead.ReadBytes(_Header.FieldArray[i].FieldLength);
                        recordObjects[i] = DBNull.Value;
                        break;
                    }
                }
            }
            catch (EndOfStreamException)
            {
                return(null, position);
            }
            catch (IOException e)
            {
                throw new DBFException("Problem Reading File", e);
            }

            return(selectIndexes.Any() ? selectIndexes.Select(it => recordObjects[it]).ToArray() : recordObjects, position);
        }
Ejemplo n.º 14
0
 /// <summary>
 /// Decodes a single Unicode character from the buffer and advances the buffer's position.
 /// </summary>
 /// <param name="buffer">The buffer to read.</param>
 /// <returns>A Unicode character.</returns>
 public static char?DecodeChar(ByteBuffer buffer)
 {
     return(CharEncoding.Decode(buffer, 0));
 }
Ejemplo n.º 15
0
 /// <summary>
 /// Encodes a single Unicode character and appends the bytes to the buffer.
 /// </summary>
 /// <param name="data">The Unicode character.</param>
 /// <param name="buffer">The destination buffer.</param>
 public static void EncodeChar(char?data, ByteBuffer buffer)
 {
     CharEncoding.Encode(data, buffer);
 }
Ejemplo n.º 16
0
 /// <summary>
 /// Gets the encode size of a single Unicode character.
 /// </summary>
 /// <param name="value">The Unicode character.</param>
 /// <returns>Encode size in bytes of the Unicode character.</returns>
 public static int GetCharEncodeSize(char?value)
 {
     return(CharEncoding.GetEncodeSize(value));
 }
Ejemplo n.º 17
0
        internal Object[] NextRecord(IEnumerable <int> selectIndexes, IList <int> sortedIndexes)
        {
            if (isClosed)
            {
                throw new DBFException("Source is not open");
            }
            IList <int> tOrderdSelectIndexes = sortedIndexes;

            var recordObjects = new Object[_header.FieldArray.Length];

            try
            {
                bool isDeleted = false;
                do
                {
                    if (isDeleted)
                    {
                        _dataInputStream.ReadBytes(_header.RecordLength - 1);
                    }

                    int t_byte = _dataInputStream.ReadByte();
                    if (t_byte == DBFFieldType.EndOfData)
                    {
                        return(null);
                    }

                    isDeleted = (t_byte == '*');
                } while (isDeleted);

                int j = 0;
                int k = -1;
                for (int i = 0; i < _header.FieldArray.Length; i++)
                {
                    if (tOrderdSelectIndexes.Count == j && j != 0 ||
                        (tOrderdSelectIndexes.Count > j && tOrderdSelectIndexes[j] > i && tOrderdSelectIndexes[j] != k))
                    {
                        _dataInputStream.BaseStream.Seek(_header.FieldArray[i].FieldLength, SeekOrigin.Current);
                        continue;
                    }
                    if (tOrderdSelectIndexes.Count > j)
                    {
                        k = tOrderdSelectIndexes[j];
                    }
                    j++;


                    switch (_header.FieldArray[i].DataType)
                    {
                    case NativeDbType.Char:

                        var b_array = new byte[
                            _header.FieldArray[i].FieldLength
                                      ];
                        _dataInputStream.Read(b_array, 0, b_array.Length);
                        //StringBuilder sb = new StringBuilder();
                        //for (int c = 0; c < b_array.Length && b_array[c] != 0; c++)
                        //{
                        //    sb.Append((char)b_array[c]);
                        //}
                        //recordObjects[i] = sb.ToString().TrimEnd();
                        recordObjects[i] = CharEncoding.GetString(b_array).TrimEnd();
                        //recordObjects[i] = Encoding.GetEncoding("ISO-8859-1").GetString(b_array).TrimEnd();
                        break;

                    case NativeDbType.Date:

                        byte[] t_byte_year = new byte[4];
                        _dataInputStream.Read(t_byte_year,
                                              0,
                                              t_byte_year.Length);

                        byte[] t_byte_month = new byte[2];
                        _dataInputStream.Read(t_byte_month,
                                              0,
                                              t_byte_month.Length);

                        byte[] t_byte_day = new byte[2];
                        _dataInputStream.Read(t_byte_day,
                                              0,
                                              t_byte_day.Length);

                        try
                        {
                            var tYear  = CharEncoding.GetString(t_byte_year);
                            var tMonth = CharEncoding.GetString(t_byte_month);
                            var tDay   = CharEncoding.GetString(t_byte_day);

                            int tIntYear, tIntMonth, tIntDay;
                            if (Int32.TryParse(tYear, out tIntYear) &&
                                Int32.TryParse(tMonth, out tIntMonth) &&
                                Int32.TryParse(tDay, out tIntDay))
                            {
                                recordObjects[i] = new DateTime(
                                    tIntYear,
                                    tIntMonth,
                                    tIntDay);
                            }
                            else
                            {
                                recordObjects[i] = null;
                            }
                        }
                        catch (ArgumentOutOfRangeException)
                        {
                            /* this field may be empty or may have improper value set */
                            recordObjects[i] = null;
                        }

                        break;

                    case NativeDbType.Float:

                        try
                        {
                            byte[] t_float = new byte[
                                _header.FieldArray[i].FieldLength
                                             ];
                            _dataInputStream.Read(t_float, 0, t_float.Length);
                            String tParsed = CharEncoding.GetString(t_float);
                            var    tLast   = tParsed.Substring(tParsed.Length - 1);
                            if (tParsed.Length > 0 &&
                                tLast != " " &&
                                tLast != DBFFieldType.Unknown)
                            {
                                //recordObjects[i] = Double.Parse(tParsed, NumberStyles.Float | NumberStyles.AllowLeadingWhite);
                                recordObjects[i] = GAPPSF.Utils.Conversion.StringToDouble(tParsed);
                            }
                            else
                            {
                                recordObjects[i] = null;
                            }
                        }
                        catch (FormatException e)
                        {
                            throw new DBFException("Failed to parse Float",
                                                   e);
                        }

                        break;

                    case NativeDbType.Numeric:

                        try
                        {
                            byte[] t_numeric = new byte[
                                _header.FieldArray[i].FieldLength
                                               ];
                            _dataInputStream.Read(t_numeric,
                                                  0,
                                                  t_numeric.Length);
                            string tParsed =
                                CharEncoding.GetString(t_numeric);
                            var tLast = tParsed.Substring(tParsed.Length - 1);
                            if (tParsed.Length > 0 &&
                                tLast != " " &&
                                tLast != DBFFieldType.Unknown)
                            {
                                //recordObjects[i] = Decimal.Parse(tParsed, NumberStyles.Float | NumberStyles.AllowLeadingWhite);
                                recordObjects[i] = GAPPSF.Utils.Conversion.StringToDouble(tParsed);
                            }
                            else
                            {
                                recordObjects[i] = null;
                            }
                        }
                        catch (FormatException e)
                        {
                            throw new DBFException(
                                      "Failed to parse Number", e);
                        }

                        break;

                    case NativeDbType.Logical:

                        byte t_logical = _dataInputStream.ReadByte();
                        //todo find out whats really valid
                        if (t_logical == 'Y' || t_logical == 't' ||
                            t_logical == 'T' ||
                            t_logical == 't')
                        {
                            recordObjects[i] = true;
                        }
                        else if (t_logical == DBFFieldType.UnknownByte)
                        {
                            recordObjects[i] = DBNull.Value;
                        }
                        else
                        {
                            recordObjects[i] = false;
                        }
                        break;

                    case NativeDbType.Memo:
                        if (string.IsNullOrEmpty(_dataMemoLoc))
                        {
                            throw new Exception("Memo Location Not Set");
                        }


                        var tRawMemoPointer = _dataInputStream.ReadBytes(_header.FieldArray[i].FieldLength);
                        var tMemoPoiner     = CharEncoding.GetString(tRawMemoPointer);
                        if (string.IsNullOrEmpty(tMemoPoiner))
                        {
                            recordObjects[i] = DBNull.Value;
                            break;
                        }
                        long tBlock;
                        if (!long.TryParse(tMemoPoiner, out tBlock))
                        {      //Because Memo files can vary and are often the least importat data,
                            //we will return null when it doesn't match our format.
                            recordObjects[i] = DBNull.Value;
                            break;
                        }


                        recordObjects[i] = new MemoValue(tBlock, this, _dataMemoLoc);
                        break;

                    default:
                        _dataInputStream.ReadBytes(_header.FieldArray[i].FieldLength);
                        recordObjects[i] = DBNull.Value;
                        break;
                    }
                }
            }
            catch (EndOfStreamException)
            {
                return(null);
            }
            catch (IOException e)
            {
                throw new DBFException("Problem Reading File", e);
            }

            return(selectIndexes.Any() ? selectIndexes.Select(it => recordObjects[it]).ToArray() : recordObjects);
        }
Ejemplo n.º 18
0
        private void WriteRecord(BinaryWriter dataOutput, DBFRecord record)
        {
            if (!record.IsDirty())
            {
                return;
            }

            //var originalPosition = _BaseStream.Position;
            _BaseStream.Seek(record.Position, SeekOrigin.Begin);
            dataOutput.Write((byte)' ');

            for (var j = 0; j < _Header.FieldArray.Length; j++)
            {
                /* iterate throught fields */
                if (!record.IsDirty(j))
                {
                    _BaseStream.Seek(_Header.FieldArray[j].FieldLength, SeekOrigin.Current);
                    continue;
                }

                var objectArray = record.ValueArray;

                switch (_Header.FieldArray[j].DataType)
                {
                case NativeDbType.UnicodeChar:
                    var str_valueU = (objectArray[j] != null && objectArray[j] != DBNull.Value) ? objectArray[j].ToString() : "";
                    var bufferU    = Utils.textPadding(str_valueU,
                                                       _UCharEncoding,
                                                       _Header.FieldArray[j].FieldLength,
                                                       Utils.ALIGN_LEFT,
                                                       (byte)0x00
                                                       );
                    dataOutput.Write(bufferU);
                    break;

                case NativeDbType.Char:
                    var str_value = (objectArray[j] != null && objectArray[j] != DBNull.Value) ? objectArray[j].ToString() : "";
                    var buffer    = Utils.textPadding(str_value,
                                                      CharEncoding,
                                                      _Header.FieldArray[j].FieldLength
                                                      );
                    dataOutput.Write(buffer);
                    break;

                case NativeDbType.Date:
                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        var tDate = (DateTime)objectArray[j];

                        dataOutput.Write(
                            CharEncoding.GetBytes(tDate.ToString("yyyyMMdd")));
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.FillArray(new byte[8], DBFFieldType.Space));
                    }

                    break;

                case NativeDbType.Float:

                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        var tDouble = Convert.ToDouble(objectArray[j]);
                        dataOutput.Write(
                            Utils.NumericFormating(
                                tDouble,
                                CharEncoding,
                                _Header.FieldArray[j].FieldLength,
                                _Header.FieldArray[j].DecimalCount
                                )
                            );
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding(
                                NullSymbol,
                                CharEncoding,
                                _Header.FieldArray[j].FieldLength,
                                Utils.ALIGN_RIGHT
                                )
                            );
                    }

                    break;

                case NativeDbType.Numeric:

                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        var tDecimal = Convert.ToDecimal(objectArray[j]);
                        dataOutput.Write(
                            Utils.NumericFormating(
                                tDecimal,
                                CharEncoding,
                                _Header.FieldArray[j].FieldLength,
                                _Header.FieldArray[j].DecimalCount
                                )
                            );
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding(
                                NullSymbol,
                                CharEncoding,
                                _Header.FieldArray[j].FieldLength,
                                Utils.ALIGN_RIGHT
                                )
                            );
                    }

                    break;

                case NativeDbType.Logical:

                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        if ((bool)objectArray[j])
                        {
                            dataOutput.Write(DBFFieldType.True);
                        }
                        else
                        {
                            dataOutput.Write(DBFFieldType.False);
                        }
                    }
                    else
                    {
                        dataOutput.Write(DBFFieldType.UnknownByte);
                    }

                    break;

                case NativeDbType.Memo:
                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        var tMemoValue = ((MemoValue)objectArray[j]);

                        tMemoValue.Write(this);

                        dataOutput.Write(Utils.NumericFormating(tMemoValue.Block, CharEncoding, 10, 0));
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding("",
                                              CharEncoding,
                                              10
                                              )
                            );
                    }


                    break;

                default:
                    throw new DBFException("Unknown field type "
                                           + _Header.FieldArray[j].DataType);
                }
            } /* iterating through the fields */
            _BinaryWriter.Flush();
            //_BaseStream.Seek(originalPosition, SeekOrigin.Begin);
        }
Ejemplo n.º 19
0
        private void WriteRecord(BinaryWriter dataOutput, Object[] objectArray)
        {
            dataOutput.Write((byte)' ');
            for (int j = 0; j < header.FieldArray.Length; j++)
            {
                /* iterate throught fields */

                switch (header.FieldArray[j].DataType)
                {
                case NativeDbType.Char:
                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        String str_value = objectArray[j].ToString();
                        dataOutput.Write(
                            Utils.textPadding(str_value,
                                              CharEncoding,
                                              header.FieldArray[j].
                                              FieldLength
                                              )
                            );
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding("",
                                              CharEncoding,
                                              header.FieldArray[j].
                                              FieldLength
                                              )
                            );
                    }

                    break;

                case NativeDbType.Date:
                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        DateTime tDate = (DateTime)objectArray[j];

                        dataOutput.Write(
                            CharEncoding.GetBytes(tDate.ToString("yyyyMMdd")));
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.FillArray(new byte[8], DBFFieldType.Space));
                    }

                    break;

                case NativeDbType.Float:

                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        Double tDouble = Convert.ToDouble(objectArray[j]);
                        dataOutput.Write(
                            Utils.NumericFormating(
                                tDouble,
                                CharEncoding,
                                header.FieldArray[j].FieldLength,
                                header.FieldArray[j].DecimalCount
                                )
                            );
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding(
                                DBFFieldType.Unknown,
                                CharEncoding,
                                header.FieldArray[j].FieldLength,
                                Utils.ALIGN_RIGHT
                                )
                            );
                    }

                    break;

                case NativeDbType.Numeric:

                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        Decimal tDecimal = Convert.ToDecimal(objectArray[j]);
                        dataOutput.Write(
                            Utils.NumericFormating(
                                tDecimal,
                                CharEncoding,
                                header.FieldArray[j].FieldLength,
                                header.FieldArray[j].DecimalCount
                                )
                            );
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding(
                                DBFFieldType.Unknown,
                                CharEncoding,
                                header.FieldArray[j].FieldLength,
                                Utils.ALIGN_RIGHT
                                )
                            );
                    }

                    break;

                case NativeDbType.Logical:

                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        if ((bool)objectArray[j])
                        {
                            dataOutput.Write(DBFFieldType.True);
                        }
                        else
                        {
                            dataOutput.Write(DBFFieldType.False);
                        }
                    }
                    else
                    {
                        dataOutput.Write(DBFFieldType.UnknownByte);
                    }

                    break;

                case NativeDbType.Memo:
                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        var tMemoValue = ((MemoValue)objectArray[j]);

                        tMemoValue.Write(this);

                        dataOutput.Write(Utils.NumericFormating(tMemoValue.Block, CharEncoding, 10, 0));
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding("",
                                              CharEncoding,
                                              10
                                              )
                            );
                    }


                    break;

                default:
                    throw new DBFException("Unknown field type "
                                           + header.FieldArray[j].DataType);
                }
            } /* iterating through the fields */
        }