static string GetLine(IVsTextLines lines, int lineNr)
{
if (lineNr < 0)
{
throw new ArgumentOutOfRangeException("lineNr");
}
else if (lines == null)
{
return(null);
}
int lastLine, lastIndex;
if (!VSErr.Succeeded(lines.GetLastLineIndex(out lastLine, out lastIndex)))
{
return(null);
}
if (lineNr > lastLine)
{
return(null);
}
LINEDATA[] data = new LINEDATA[1];
if (!VSErr.Succeeded(lines.GetLineData(lineNr, data, null)))
{
return(null);
}
return(Marshal.PtrToStringUni(data[0].pszText, data[0].iLength));
}
private String GetLineContent(IVsTextLines lines, int lineNumber)
{
String str = "";
var data = new LINEDATA[1];
var markerData = new MARKERDATA[1];
if (VSConstants.S_OK == lines.GetLineData(lineNumber, data, markerData))
{
str = Marshal.PtrToStringUni(data[0].pszText, data[0].iLength);
// Clean up memory...needed?
lines.ReleaseLineData(data);
lines.ReleaseMarkerData(markerData);
}
return(str);
}
/// <summary>
/// Enumerate over the lines [startIndex, endIndex) for the IVsTextLines buffer.
/// </summary>
/// <param name="buffer"> The buffer to enumerate. </param>
/// <param name="startIndex"> The starting index, inclusive. </param>
/// <param name="endIndex"> The end index, exclusive. </param>
/// <returns>
/// Returns an enumrator that will enumerate over the lines [startIndex, endIndex) of the buffer.
/// </returns>
private static IEnumerable <Tuple <int, string> > GetTextLinesEnumeratorInternal(IVsTextLines buffer, int startIndex, int endIndex)
{
LINEDATA[] lineData = new LINEDATA[1];
for (int i = startIndex; i < endIndex; ++i)
{
int hr = buffer.GetLineData(i, lineData, null);
// Skip the line if there is an error.
if (ErrorHandler.Failed(hr))
{
continue;
}
string line;
try
{
// We set an arbitrary limit on the line length that we're willing to handle. This is to avoid
// loading an unreasonably long string into memory. The buffer is compressed under the covers, so it
// can handle much longer strings.
// If we choose to handle the case where the string is longer, we would complicate the code significantly.
// Since this is an unlikely scenario to have the script tag on a line this long, we will optimize
// for the standard case and error;
if (lineData[0].iLength >= MaxLineLengthToConsider)
{
continue;
}
line = Marshal.PtrToStringUni(lineData[0].pszText);
}
finally
{
buffer.ReleaseLineData(lineData);
}
yield return(new Tuple <int, string>(i, line));
}
}
static string GetLine(IVsTextLines lines, int lineNr)
{
if (lineNr < 0)
throw new ArgumentOutOfRangeException("lineNr");
else if (lines == null)
return null;
int lastLine, lastIndex;
if (!ErrorHandler.Succeeded(lines.GetLastLineIndex(out lastLine, out lastIndex)))
return null;
if (lineNr > lastLine)
return null;
LINEDATA[] data = new LINEDATA[1];
if (!ErrorHandler.Succeeded(lines.GetLineData(lineNr, data, null)))
return null;
return Marshal.PtrToStringUni(data[0].pszText, data[0].iLength);
}
public int GetLineData(int iLine, LINEDATA[] pLineData, MARKERDATA[] pMarkerData)
{
return(_textBuffer.GetLineData(iLine, pLineData, pMarkerData));
}
private String GetLineContent(IVsTextLines lines, int lineNumber)
{
String str = "";
var data = new LINEDATA[1];
var markerData = new MARKERDATA[1];
if (VSConstants.S_OK == lines.GetLineData(lineNumber, data, markerData))
{
str = Marshal.PtrToStringUni(data[0].pszText, data[0].iLength);
// Clean up memory...needed?
lines.ReleaseLineData(data);
lines.ReleaseMarkerData(markerData);
}
return str;
}
