fixing gitignore

lisp/sidenotes.el

@@ -0,0 +1,26 @@
+(defun z/no-sidenotes-file-p (file)
+  "Return non-nil if FILE should be rendered without sidenotes.
+
+A file is no-sidenotes if:
+  - It has a #+NO_SIDENOTES: keyword, or
+  - Its FILETAGS contain :NO_SIDENOTES: or :KANBAN:, or
+  - Any top-level heading contains \"KANBAN\"."
+  (when (file-exists-p file)
+    (with-temp-buffer
+      (insert-file-contents file)
+      (org-mode)
+      (let* ((case-fold-search t)
+             (keywords (org-collect-keywords
+                        '("NO_SIDENOTES" "FILETAGS")))
+             (flag     (cadr (assoc "NO_SIDENOTES" keywords)))
+             (filetags (cadr (assoc "FILETAGS" keywords))))
+        (or
+         (and flag (string-match-p "\\S-" flag))
+         (and filetags
+              (string-match-p
+               ":\\(NO_SIDENOTES\\|KANBAN\\):"
+               (concat ":" filetags ":")))
+         (save-excursion
+           (goto-char (point-min))
+           (re-search-forward "^\\*+ .*KANBAN.*" nil t)))))))
+(provide 'sidenotes)