public ArrayList DiffReport()
{
ArrayList retval = new ArrayList();
int dcount = _dest.Count();
int scount = _source.Count();
//Deal with the special case of empty files
if (dcount == 0)
{
if (scount > 0)
{
retval.Add(DiffResultSpan.CreateDeleteSource(0, scount));
}
return(retval);
}
else
{
if (scount == 0)
{
retval.Add(DiffResultSpan.CreateAddDestination(0, dcount));
return(retval);
}
}
_matchList.Sort();
int curDest = 0;
int curSource = 0;
DiffResultSpan last = null;
//Process each match record
foreach (DiffResultSpan drs in _matchList)
{
if ((!AddChanges(retval, curDest, drs.DestIndex, curSource, drs.SourceIndex)) &&
(last != null))
{
last.AddLength(drs.Length);
}
else
{
retval.Add(drs);
}
curDest = drs.DestIndex + drs.Length;
curSource = drs.SourceIndex + drs.Length;
last = drs;
}
//Process any tail end data
AddChanges(retval, curDest, dcount, curSource, scount);
return(retval);
}
