for chunk_xml in chop(main_text):
chunk_html, chunk_toc, chunk_chars = transform_chunk(chunk_xml, chunk_counter, annotations)
toc.extend(chunk_toc)
for chunk_xml in chop(main_text):
chunk_html, chunk_toc, chunk_chars = transform_chunk(chunk_xml, chunk_counter, annotations)
toc.extend(chunk_toc)