bibtex-parse-string-prefix is a compiled Lisp function in `bibtex.el'.


Parse the prefix part of a BibTeX string entry, including reference key.
If the string prefix is found, return a triple consisting of the position of
the very first character of the match, the actual starting position of the
reference key and the end position of the match.
If `bibtex-string-empty-key' is non-nil accept empty string key.