const moveSemantics = (deletingCnt > insertingCnt ? MarkerMoveSemantics.ForceStay : MarkerMoveSemantics.MarkerDefined);
if (!startDone && adjustMarkerBeforeColumn(nodeStart, startStickToPreviousCharacter, start + commonLength, moveSemantics)) {
}
if (!endDone && adjustMarkerBeforeColumn(nodeEnd, endStickToPreviousCharacter, start + commonLength, moveSemantics)) {
endDone = true;