// todo: move to version control backend
		IEnumerable<Conflict> Conflicts (Mono.TextEditor.Document doc)
		{
			foreach (int mergeStart in doc.SearchForward ("<<<<<<<", 0)) {
				LineSegment start = doc.GetLineByOffset (mergeStart);
				if (start.Offset != mergeStart)
					continue;
				int dividerOffset = doc.SearchForward ("=======", mergeStart).First ();
				LineSegment divider = doc.GetLineByOffset (dividerOffset);

				int endOffset      = doc.SearchForward (">>>>>>>", dividerOffset).First ();
				LineSegment end = doc.GetLineByOffset (endOffset);

				yield return new Conflict (new Mono.TextEditor.Segment (start.EndOffset, divider.Offset - start.EndOffset),
					new Mono.TextEditor.Segment (divider.EndOffset, end.Offset - divider.EndOffset),
					new Mono.TextEditor.Segment (start),
					new Mono.TextEditor.Segment (divider),
					new Mono.TextEditor.Segment (end));
			}
		}