(if (not label) (org-element-contents footnote-reference)
(let ((cache (or (plist-get info :footnote-definition-cache)
(let ((hash (make-hash-table :test #'equal)))
+ ;; Cache all the footnotes in document for
+ ;; later search.
+ (org-element-map (plist-get info :parse-tree)
+ '(footnote-definition footnote-reference)
+ (lambda (f)
+ ;; Skip any standard footnote reference
+ ;; since those cannot contain a
+ ;; definition.
+ (unless (eq (org-element-property :type f) 'standard)
+ (puthash
+ (cons :element (org-element-property :label f))
+ f
+ hash)))
+ info)
(plist-put info :footnote-definition-cache hash)
hash))))
(or
(gethash label cache)
(puthash label
- (org-element-map (plist-get info :parse-tree)
- '(footnote-definition footnote-reference)
- (lambda (f)
- (cond
- ;; Skip any footnote with a different label.
- ;; Also skip any standard footnote reference
- ;; with the same label since those cannot
- ;; contain a definition.
- ((not (equal (org-element-property :label f) label)) nil)
- ((eq (org-element-property :type f) 'standard) nil)
- ((org-element-contents f))
- ;; Even if the contents are empty, we can not
- ;; return nil since that would eventually raise
- ;; the error. Instead, return the equivalent
- ;; empty string.
- (t "")))
- info t)
+ (let ((hashed (gethash (cons :element label) cache)))
+ (when hashed
+ (or (org-element-contents hashed)
+ ;; Even if the contents are empty, we can not
+ ;; return nil since that would eventually raise
+ ;; the error. Instead, return the equivalent
+ ;; empty string.
+ "")))
cache)
(error "Definition not found for footnote %s" label))))))