bibtex-entry-index is a compiled Lisp function in `bibtex.el'.


Return index of BibTeX entry head at or past position of point.
The index is a list (KEY CROSSREF-KEY ENTRY-TYPE) that is used for sorting
the entries of the BibTeX buffer. CROSSREF-KEY is nil unless the value
of `bibtex-maintain-sorted-entries' is `crossref'. Move point to the end
of the head of the entry found. Return nil if no entry found.