} //readIndexes
// Get card data for MGC format file
private String mgcData(BinaryReader br)
{
// Read the file but for text only, ignore Graphics
// format when either Graphics (G), Text (T) or both G&T
// Byte numbers
// G & T T G
// 0 : 1 0:1 0 : 1 Length of graphic bitmap (lob)
// 2 : 3 2 : 3 Width
// 4 : 5 4 : 5 Height
// 6 : 7 6 : 7 X-co-ord
// 8 : 9 8 : 9 Y-co-ord
// 10 : eob 10 : eob Bitmap Graphic
// eob+1 :
// +2 2:3 eob+1 :
// +2 Length of text entry (lot)
// eob +3 :
// end 4:lot eob +3 :
// end Text data
Int16 bitmapLen = br.ReadInt16(); // 1st two bytes of card data
Int16 num = br.ReadInt16(); // 2nd two bytes - either text length (T) or bitmap width (G & GT)
String txtData = String.Empty;
if (bitmapLen + num == 0)
{
CardFile.Log.writeLn("Card with no data");
}
else if (bitmapLen == 0 && num > 0) // Text only card
{
debugLn("Text only card");
Int16 txtLen = num;
txtData = new string( chrd.ReadChars(txtLen), 0, txtLen ); // last arg is length
debugLn("Card Text Length: " + txtLen);
CardFile.Log.writeLn("Card Data:");
CardFile.Log.writeLn(txtData);
debugLn("End of Text only card\n");
}
else // Graphic data, maybe text too
{
CardFile.Log.writeLn("Has Graphic");
debugLn("Bitmap length: " + bitmapLen);
Int16 bitmapWidth = num;
Int16 bitmapHeight = br.ReadInt16();
Int16 Xoffset = br.ReadInt16();
Int16 Yoffset = br.ReadInt16();
br.ReadBytes(bitmapLen); // read but discard bitmap, to advance file ptr
Int16 txtLen = br.ReadInt16(); // text length field
//char[] txtData = chrd.ReadChars(txtLen);
txtData = new string( chrd.ReadChars(txtLen), 0, txtLen ); // last arg is length
CardFile.Log.writeLn("Card data: ");
CardFile.Log.writeLn(txtData);
debugLn("End of Text only card\n");
} //if
return(txtData);
} //mgcData
public String[] ReadFields()
{
Char previewChar = Char.MinValue;
Char currentChar = Char.MinValue;
Char nextChar = Char.MinValue;
if (_charReader.ReadChars(out currentChar, out nextChar) == false)
{
return(null);
}
Int32 currentFieldNumber = -1;
FieldBuilder currentFieldBuilder;
this.PrepareNextField(ref currentFieldNumber, out currentFieldBuilder);
Boolean quoteMode = false;
do
{
if (currentChar == '"')
{
if (quoteMode)
{
if (nextChar == '"')
{
currentFieldBuilder.Append('"');
_charReader.SkipNextChar();
}
else if (nextChar == Char.MinValue || // конец файла
nextChar == ',' || // конец поля
nextChar == '\r' // конец записи
)
{
quoteMode = false;
}
else
{
currentFieldBuilder.Append('"');
}
}
else
{
if (previewChar == Char.MinValue || // начало файла
previewChar == ',' || // начало поля
previewChar == '\n' // начало записи
)
{
quoteMode = true;
}
else
{
currentFieldBuilder.Append('"');
}
}
}
else if (currentChar == ',')
{
if (quoteMode)
{
currentFieldBuilder.Append(currentChar);
}
else
{
this.PrepareNextField(ref currentFieldNumber, out currentFieldBuilder);
}
}
else if (currentChar == '\r')
{
if (nextChar != '\n')
{
currentFieldBuilder.AppendEndLine();
}
}
else if (currentChar == '\n')
{
if (quoteMode == false && previewChar == '\r')
{
break;
}
else
{
currentFieldBuilder.AppendEndLine();
}
}
else
{
currentFieldBuilder.Append(currentChar);
}
previewChar = currentChar;
} while (_charReader.ReadChars(out currentChar, out nextChar));
String[] fields = new String[currentFieldNumber + 1];
for (Int32 i = 0; i < fields.Length; i += 1)
{
FieldBuilder fieldBuilder = _fieldBuilderList[i];
fields[i] = fieldBuilder.ToString();
}
return(fields);
}