/// <summary>
/// Toggle comment on the specified range, returns a value indicating what has been done
/// 0: null, 1: toggle off; 2: toggle on, 3: added
/// </summary>
/// <param name="startPos"></param>
/// <param name="endPos"></param>
/// <returns></returns>
private static int ToggleCommentOnRange(int startPos, int endPos)
{
// the line is essentially empty
if ((endPos - startPos) == 0)
{
Sci.SetTextByRange(startPos, startPos, "/* */");
return(3);
}
// line is surrounded by /* */
if (Sci.GetTextOnRightOfPos(startPos, 2).Equals("/*") && Sci.GetTextOnLeftOfPos(endPos, 2).Equals("*/"))
{
if (Sci.GetTextByRange(startPos, endPos).Equals("/* */"))
{
// delete an empty comment
Sci.SetTextByRange(startPos, endPos, String.Empty);
}
else
{
// delete /* */
Sci.SetTextByRange(endPos - 2, endPos, String.Empty);
Sci.SetTextByRange(startPos, startPos + 2, String.Empty);
}
return(1);
}
Sci.SetTextByRange(endPos, endPos, "*/");
Sci.SetTextByRange(startPos, startPos, "/*");
return(2);
}