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org_web/lisp/sidenotes.el
2026-04-02 11:27:50 +01:00

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1.5 KiB
EmacsLisp
Executable File

;;; sidenotes.el --- Sidenote / no-sidenotes helpers -*- lexical-binding: t; -*-
;;; Commentary:
;; Predicates for deciding whether a page should render with sidenotes.
;; Loaded by build-site.el via (require 'sidenotes).
;;
;; NOTE: Do NOT define `site-root' here. build-site.el owns that definition.
;;; Code:
(defun z/no-sidenotes-file-p (file)
"Return non-nil if FILE should be rendered without sidenotes.
A file suppresses sidenotes when any of the following is true:
- It has a #+NO_SIDENOTES: keyword with a non-empty value.
- Its FILETAGS contain :NO_SIDENOTES: or :KANBAN:.
- Any top-level heading contains the word \"KANBAN\" (case-insensitive)."
(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
;; Explicit keyword present with any non-whitespace value
(and flag (string-match-p "\\S-" flag))
;; Tag-based suppression
(and filetags
(string-match-p ":\\(NO_SIDENOTES\\|KANBAN\\):"
(concat ":" filetags ":")))
;; Heading-based suppression
(save-excursion
(goto-char (point-min))
(re-search-forward "^\\*+ .*KANBAN.*" nil t)))))))
(provide 'sidenotes)
;;; sidenotes.el ends here