Creating footnotes on import

Which is the correct algorithm for import filter to create footnotes?

I tried:

// when parsing body text

if (footnote marker encountered)
   appendObject(PTO_Field,{"type","footnote_ref","footnote-id",<ordinal>})

// after parsing body text

for each (footnote text)
   appendStrux(PTX_SectionFootnote,{"footnote-id",<ordinal>}
   appendObject(PTO_Field,{"type","footnote_anchor","footnote-id",<ordinal>})
   // parse footnote contents
   appendStrux(PTX_EndFootnote)


The resulting document looks weird, the footnotes after 1st are unfocusable, and when editing document occasionally crash. Since no document format specification is available, I would like to know the correct procedure.
Received on Tue Jan 18 21:27:40 2011