/// <summary>
/// Add new word in DDX file.
/// The word inputed must be sorted.
/// </summary>
/// <param name="word">word</param>
/// <param name="position">position in .idx file</param>
/// <param name="length">length in .idx file</param>
public bool Add(string word, long position, long length)
{
if (_Mode != Mode.Write)
{
throw new System.IO.IOException(string.Format("DDX file: {0} is read only mode. Can't be written!",
_FilePath));
}
if (word.Length > MaxWordLength)
{
return(false);
}
try
{
_CurrentPositionInUnitBlock = UnicodeString.Encode(_TempMem, _UnitBlock,
_CurrentPositionInUnitBlock, word, _PreWord, position, length);
}
catch (Exception e)
{
Global.Report.WriteErrorLog("Unicode string encode error", e);
return(false);
}
if (_CurrentPositionInUnitBlock < 0)
{
//UnitBlock overflow
Array.Copy(_UnitBlock, 0, _Segment, _CurrentUnitIndex * UnitBlockSize, _UnitBlock.Length);
_CurrentUnitIndex++;
_CurrentPositionInUnitBlock = 0;
Array.Clear(_UnitBlock, 0, _UnitBlock.Length);
_PreWord = "";
if (_CurrentUnitIndex * UnitBlockSize >= _Segment.Length)
{
//_Segment overflow
_File.Write(_Segment, 0, _Segment.Length);
_CurrentUnitIndex = 0;
Array.Clear(_Segment, 0, _Segment.Length);
}
_CurrentPositionInUnitBlock = UnicodeString.Encode(_TempMem, _UnitBlock,
_CurrentPositionInUnitBlock, word, _PreWord, position, length);
return(true);
}
_PreWord = word;
return(true);
}
