/// <summary>
/// Read returns the ordinal number of the next char, or
/// EOF (-1) for an end of stream. Note that the next
/// code point may require *two* calls of Read().
/// </summary>
/// <returns></returns>
public override int Read()
{
//
// Characters at positions
// [data.offset, data.offset + data.bldr.Length)
// are available in data.bldr.
//
if (bPos < data.MaxIndex)
{
// ch0 cannot be EOF
return((int)data[bPos++]);
}
else // Read from underlying stream
{
// Experimental code, blocks of page size
char[] chrs = new char[4096];
int count = NextBlk(chrs, 0, 4096);
if (count == 0)
{
return(EndOfFile);
}
else
{
data.Append(chrs, count);
return((int)data[bPos++]);
}
}
}
public override int Read()
{
if (bPos < data.MaxIndex)
{
return((int)data[bPos++]);
}
else
{
char[] chrs = new char[4096];
int count = NextBlk(chrs, 0, 4096);
if (count == 0)
{
return(EndOfFile);
}
else
{
data.Append(chrs, count);
return((int)data[bPos++]);
}
}
}
/// <summary>
/// Read returns the ordinal number of the next char, or
/// EOF (-1) for an end of stream. Note that the next
/// code point may require *two* calls of Read().
/// </summary>
/// <returns></returns>
public override int Read()
{
int res = EndOfFile;
if (EscapeCommaMode)
{
switch (state)
{
case CommaState.None:
//
// Characters at positions
// [data.offset, data.offset + data.bldr.Length)
// are available in data.bldr.
//
if (bPos < data.MaxIndex)
{
// ch0 cannot be EOF
res = (int)data[bPos++];
}
else // Read from underlying stream
{
// Experimental code, blocks of page size
int count = NextBlk(chrs, 0, 4096);
if (count == 0)
{
return(EndOfFile);
}
else
{
data.Append(chrs, count);
res = (int)data[bPos++];
}
}
if (res == 44)
{
res = 32;
state = CommaState.Comma;
}
break;
case CommaState.Comma:
res = 44;
state = CommaState.AfterComma;
break;
case CommaState.AfterComma:
res = 32;
state = CommaState.None;
break;
}
return(res);
}
if (bPos < data.MaxIndex)
{
// ch0 cannot be EOF
return((int)data[bPos++]);
}
else // Read from underlying stream
{
// Experimental code, blocks of page size
int count = NextBlk(chrs, 0, 4096);
if (count == 0)
{
return(EndOfFile);
}
else
{
data.Append(chrs, count);
return((int)data[bPos++]);
}
}
}