private void FindMatchingBlocks(int startInOld, int endInOld, int startInNew, int endInNew, List <DiffMatch> matchingBlocks)
{
DiffMatch item = FindMatch(startInOld, endInOld, startInNew, endInNew);
if (item != null)
{
if ((startInOld < item.StartInOld) && (startInNew < item.StartInNew))
{
FindMatchingBlocks(startInOld, item.StartInOld, startInNew, item.StartInNew, matchingBlocks);
}
matchingBlocks.Add(item);
if ((item.EndInOld < endInOld) && (item.EndInNew < endInNew))
{
FindMatchingBlocks(item.EndInOld, endInOld, item.EndInNew, endInNew, matchingBlocks);
}
}
}
private List <DiffOperation> Operations()
{
int startInOld = 0;
int startInNew = 0;
List <DiffOperation> list = new List <DiffOperation>();
List <DiffMatch> list2 = MatchingBlocks();
list2.Add(new DiffMatch(oldWords.Length, newWords.Length, 0));
for (int i = 0; i < list2.Count; i++)
{
DiffMatch match = list2[i];
bool flag = startInOld == match.StartInOld;
bool flag2 = startInNew == match.StartInNew;
DiffAction none = DiffAction.none;
if (!flag && !flag2)
{
none = DiffAction.replace;
}
else if (flag && !flag2)
{
none = DiffAction.insert;
}
else if (!flag)
{
none = DiffAction.delete;
}
else
{
none = DiffAction.none;
}
if (none != DiffAction.none)
{
list.Add(new DiffOperation(none, startInOld, match.StartInOld, startInNew, match.StartInNew));
}
if (match.Size != 0)
{
list.Add(new DiffOperation(DiffAction.equal, match.StartInOld, match.EndInOld, match.StartInNew, match.EndInNew));
}
startInOld = match.EndInOld;
startInNew = match.EndInNew;
}
return(list);
}
