bog--prepare-bib-file: Set dialect

Otherwise, if this has not already been done globally (e.g., by visiting
a .bib file), bibtex-entry-head is not set and bibtex-valid-entry fails
with a type error.

1 files changed, 3 insertions, 0 deletions

diff --git a/bog.el b/bog.el
index a354946..50fe3c7 100644
--- a/bog.el
+++ b/bog.el
@@ -762,6 +762,9 @@ one entry per BibTeX file."
     (with-temp-buffer
       (bibtex-mode)
       (insert-file-contents file)
+      ;; Make sure `bibtex-entry-head' is set since we're not visiting
+      ;; a file.
+      (unless bibtex-entry-head (bibtex-set-dialect nil 'local))
       (bibtex-skip-to-valid-entry)
       (bibtex-clean-entry new-key)
       (if (looking-at bibtex-entry-head)