@Override
  public void deleteString(int startOffset, int endOffset) {
    assert intersectWithEditable(new TextRange(startOffset, startOffset)) != null;
    assert intersectWithEditable(new TextRange(endOffset, endOffset)) != null;

    List<TextRange> hostRangesToDelete;
    synchronized (myLock) {
      hostRangesToDelete = new ArrayList<>(myShreds.size());

      int offset = startOffset;
      int curRangeStart = 0;
      for (PsiLanguageInjectionHost.Shred shred : myShreds) {
        curRangeStart += shred.getPrefix().length();
        if (offset < curRangeStart) offset = curRangeStart;
        if (offset >= endOffset) break;
        Segment hostRange = shred.getHostRangeMarker();
        if (hostRange == null) continue;
        int hostRangeLength = hostRange.getEndOffset() - hostRange.getStartOffset();
        TextRange range = TextRange.from(curRangeStart, hostRangeLength);
        if (range.contains(offset)) {
          TextRange rangeToDelete = new TextRange(offset, Math.min(range.getEndOffset(), endOffset));
          hostRangesToDelete.add(rangeToDelete.shiftRight(hostRange.getStartOffset() - curRangeStart));
          offset = rangeToDelete.getEndOffset();
        }
        curRangeStart += hostRangeLength;
        curRangeStart += shred.getSuffix().length();
      }
    }

    int delta = 0;
    for (TextRange hostRangeToDelete : hostRangesToDelete) {
      myDelegate.deleteString(hostRangeToDelete.getStartOffset() + delta, hostRangeToDelete.getEndOffset() + delta);
      delta -= hostRangeToDelete.getLength();
    }
  }
@Override
  public void deleteString(int startOffset, int endOffset)