doomemacs/core/autoload/docs.el
Henrik Lissner 3deba740d3
feat(docs): add face:X link type to docs
For linking face symbols to documentation.
2022-08-02 16:24:36 +02:00

545 lines
22 KiB
EmacsLisp

;;; core/autoload/docs.el -*- lexical-binding: t; -*-
;;
;;; `doom-docs-mode'
(defun doom--docs-hide-meta-h ()
"Hide all meta or comment lines."
(org-with-wide-buffer
(goto-char (point-min))
(save-match-data
(let ((case-fold-search t))
(while (re-search-forward "^[ \t]*\\#" nil t)
(catch 'abort
(org-flag-region
(line-beginning-position)
(cond ((looking-at "+\\(?:title\\|subtitle\\): +")
(match-end 0))
((looking-at "+\\(?:created\\|since\\|author\\|email\\|date\\): +")
(throw 'abort nil))
((or (eq (char-after) ?\s)
(looking-at "+\\(begin\\|end\\)_comment"))
(line-beginning-position 2))
((looking-at "+\\(?:begin\\|end\\)_\\([^ \n]+\\)")
(line-end-position))
((line-beginning-position 2)))
doom-docs-mode t)))))))
(defun doom--docs-hide-drawers-h ()
"Hide all property drawers."
(org-with-wide-buffer
(goto-char (point-min))
(while (re-search-forward org-drawer-regexp nil t)
(let ((beg (1- (match-beginning 0)))
(end (re-search-forward org-drawer-regexp nil t)))
(when (save-excursion (goto-char beg) (bobp))
(cl-incf end))
(org-flag-region beg end doom-docs-mode t)))))
(defun doom--docs-hide-tags-h ()
"Hide tags in org headings."
(org-with-wide-buffer
(goto-char (point-min))
(while (re-search-forward org-heading-regexp nil t)
(when-let (tags (org-get-tags nil t))
(when (or (member "noorg" tags)
(member "unfold" tags))
;; prevent `org-ellipsis' around hidden regions
(org-show-entry))
(if (member "noorg" tags)
(org-flag-region (line-end-position 0)
(save-excursion
(org-end-of-subtree t)
(forward-line 1)
(if (and (bolp) (eolp))
(line-beginning-position)
(line-end-position 0)))
doom-docs-mode t)
(org-flag-region (save-excursion
(goto-char (line-beginning-position))
(re-search-forward " +:[^ ]" (line-end-position))
(match-beginning 0))
(line-end-position)
doom-docs-mode t))))))
(defun doom--docs-hide-stars-h ()
"Update invisible property to VISIBILITY for markers in the current buffer."
(org-with-wide-buffer
(goto-char (point-min))
(with-silent-modifications
(while (re-search-forward "^\\(\\*[ \t]\\|\\*\\*+\\)" nil t)
(org-flag-region
(match-beginning 0)
(match-end 0)
doom-docs-mode t)))))
(defvar doom--docs-babel-cache nil)
(defun doom--docs-hide-src-blocks-h ()
"Hide babel blocks (and/or their results) depending on their :exports arg."
(org-with-wide-buffer
(let ((inhibit-read-only t))
(goto-char (point-min))
(make-local-variable 'doom--docs-babel-cache)
(while (re-search-forward org-babel-src-block-regexp nil t)
(let* ((beg (match-beginning 0))
(end (save-excursion (goto-char (match-end 0))
(skip-chars-forward "\n")
(point)))
(exports
(save-excursion
(goto-char beg)
(and (re-search-forward " :exports \\([^ \n]+\\)" (line-end-position) t)
(match-string-no-properties 1))))
(results (org-babel-where-is-src-block-result)))
(save-excursion
(when (and (if (stringp exports)
(member exports '("results" "both"))
org-export-use-babel)
(not results)
doom-docs-mode)
(cl-pushnew beg doom--docs-babel-cache)
(quiet! (org-babel-execute-src-block))
(setq results (org-babel-where-is-src-block-result))
(org-element-cache-refresh beg)
(restore-buffer-modified-p nil)))
(save-excursion
(when results
(when (member exports '("code" "both" "t"))
(setq beg results))
(when (member exports '("none" "code"))
(setq end (progn (goto-char results)
(goto-char (org-babel-result-end))
(skip-chars-forward "\n")
(point))))))
(unless (member exports '(nil "both" "code" "t"))
(org-flag-region beg end doom-docs-mode t))))
(unless doom-docs-mode
(save-excursion
(dolist (pos doom--docs-babel-cache)
(goto-char pos)
(org-babel-remove-result)
(org-element-cache-refresh pos))
(kill-local-variable 'doom--docs-babel-cache)
(restore-buffer-modified-p nil))))))
(defvar doom--docs-macro-cache nil)
(defun doom--docs-expand-macros-h ()
"Expand {{{macros}}} with their value."
(org-with-wide-buffer
(goto-char (point-min))
(make-local-variable 'doom--docs-macro-cache)
(while (re-search-forward "{{{[^}]+}}}" nil t)
(with-silent-modifications
(if doom-docs-mode
(when-let* ((element (org-element-context))
(key (org-element-property :key element))
(cachekey (org-element-property :value element))
(template (cdr (assoc-string key org-macro-templates t))))
(let ((value (or (cdr (assoc-string cachekey doom--docs-macro-cache))
(setf (alist-get cachekey doom--docs-macro-cache nil nil 'equal)
(org-macro-expand element org-macro-templates)))))
(add-text-properties (match-beginning 0)
(match-end 0)
`(display ,value))))
(remove-text-properties (match-beginning 0)
(match-end 0)
'(display))))
(org-element-cache-refresh (point)))))
(defvar doom--docs-kbd-alist
(let ((evilp (featurep! :editor evil)))
`(("<leader>" . ,(if evilp "SPC" "C-c"))
("<localleader>" . ,(if evilp "SPC m" "C-c l"))
("<help>" . ,(if evilp "SPC h" "C-h")))))
(defun doom--docs-expand-kbd-h ()
"Replace special keywords in [[kbd:][...]] links."
(org-with-wide-buffer
(let ((inhibit-read-only t))
(goto-char (point-min))
(while (re-search-forward "\\[\\[kbd:.*\\]\\[\\(.*<[^>]+>.*\\)\\]\\]" nil t)
(let ((beg (match-beginning 1))
(end (match-end 1)))
(if doom-docs-mode
(add-text-properties
beg end `(display
,(let ((kbd (match-string-no-properties 1)))
(dolist (rep doom--docs-kbd-alist kbd)
(setq kbd (replace-regexp-in-string (car rep) (cdr rep) kbd))))))
(remove-text-properties beg end '(display)))
(org-element-cache-refresh beg)))
(restore-buffer-modified-p nil))))
(defun doom--docs-realign-tables-h ()
"Realign tables, as they may have changed."
(org-with-wide-buffer
(goto-char (point-min))
(while (re-search-forward org-table-line-regexp nil t)
(let ((inhibit-read-only t))
(org-table-align)))
(org-element-cache-refresh (point))
(restore-buffer-modified-p nil)))
(defvar doom-docs-mode-alist
'((flyspell-mode . -1)
(spell-fu-mode . -1)
(visual-line-mode . -1)
(mixed-pitch-mode . -1)
(variable-pitch-mode . -1))
"An alist of minor modes to activate or deactivate in `doom-docs-mode'.
The CAR is the minor mode symbol, and CDR should be either +1 or -1,
depending.")
(defvar doom--docs-initial-values nil)
(defvar doom--docs-cookies nil)
;;;###autoload
(define-minor-mode doom-docs-mode
"Hides metadata, tags, & drawers and activates all org-mode pretiffications.
This primes `org-mode' for reading."
:lighter " Doom Docs"
:after-hook (org-restart-font-lock)
(unless (derived-mode-p 'org-mode)
(user-error "Not an org mode buffer"))
(mapc (lambda (sym)
(if doom-docs-mode
(set (make-local-variable sym) t)
(kill-local-variable sym)))
`(org-pretty-entities
org-hide-emphasis-markers
org-hide-macro-markers))
(when doom-docs-mode
(make-local-variable 'doom--docs-initial-values))
(mapc (fn! ((face . plist))
(if doom-docs-mode
(push (apply #'face-remap-add-relative face plist) doom--docs-cookies)
(mapc #'face-remap-remove-relative doom--docs-cookies)))
'((org-document-title :weight bold :height 1.4)
(org-document-info :weight normal :height 1.15)))
(mapc (fn! ((mode . state))
(if doom-docs-mode
(if (and (boundp mode) (symbol-value mode))
(unless (> state 0)
(setf (alist-get mode doom--docs-initial-values) t)
(funcall mode -1))
(unless (< state 0)
(setf (alist-get mode doom--docs-initial-values) nil)
(funcall mode +1)))
(when-let (old-val (assq mode doom--docs-initial-values))
(funcall mode (if old-val +1 -1)))))
doom-docs-mode-alist)
(unless doom-docs-mode
(kill-local-variable 'doom--docs-initial-values)))
(add-hook! 'doom-docs-mode-hook
#'doom--docs-hide-meta-h
#'doom--docs-hide-tags-h
#'doom--docs-hide-drawers-h
#'doom--docs-hide-stars-h
#'doom--docs-expand-macros-h
#'doom--docs-expand-kbd-h
#'doom--docs-realign-tables-h
#'doom--docs-hide-src-blocks-h)
(defun doom--docs-toggle-read-only-h ()
(doom-docs-mode (if buffer-read-only +1 -1)))
(defvar doom--docs-id-locations nil)
(defvar doom--docs-id-files nil)
;;;###autoload
(defun doom/reload-docs (&optional force)
"Reload the ID locations in Doom's documentation and open docs buffers."
(interactive (list 'interactive))
(with-temp-buffer
(let ((org-id-locations-file
(doom-path (file-truename doom-cache-dir) "doom-docs-org-ids"))
(org-id-track-globally t)
org-agenda-files
org-id-extra-files
org-id-files
org-id-locations
org-id-extra-files
(org-inhibit-startup t)
org-mode-hook)
(if force
(org-id-update-id-locations
(doom-files-in (list doom-docs-dir doom-modules-dir)
:match "/[^.].+\\.org$"))
(org-id-locations-load))
(setq doom--docs-id-files org-id-files
doom--docs-id-locations org-id-locations)))
(dolist (buf (doom-buffers-in-mode 'doom-docs-org-mode))
(with-current-buffer buf
(setq-local org-id-files doom--docs-id-files
org-id-locations doom--docs-id-locations))))
;;
;;; `doom-docs-org-mode'
(defvar doom-docs-link-alist
'(("doom-tag" . "https://github.com/hlissner/doom-emacs/releases/tag/%s")
("doom-contrib-core" . "id:9ac0c15c-29e7-43f8-8926-5f0edb1098f0")
("doom-contrib-docs" . "id:31f5a61d-d505-4ee8-9adb-97678250f4e2")
("doom-contrib-maintainer" . "id:e71e9595-a297-4c49-bd11-f238329372db")
("doom-contrib-module" . "id:b461a050-8702-4e63-9995-c2ef3a78f35d")
("doom-faq" . "id:5fa8967a-532f-4e0c-8ae8-25cd802bf9a9")
("doom-help" . "id:9bb17259-0b07-45a8-ae7a-fc5e0b16244e")
("doom-help-changelog" . "id:7c56cc08-b54b-4f4b-b106-a76e2650addd")
("doom-help-modules" . "id:1ee0b650-f09b-4454-8690-cc145aadef6e")
("doom-index" . "id:3051d3b6-83e2-4afa-b8fe-1956c62ec096")
("doom-module-index" . "id:12d2de30-c569-4b8e-bbc7-85dd5ccc4afa")
("doom-module-issues" . "https://github.com/orgs/doomemacs/projects/2/views/1?filterQuery=label:\"%s\"")
("doom-report" . "https://github.com/hlissner/doom-emacs/issues/new/choose")
("doom-source" . "https://github.com/hlissner/doom-emacs/tree/develop/%s")
("doom-suggest-edit" . "id:31f5a61d-d505-4ee8-9adb-97678250f4e2")
("doom-suggest-faq" . "id:aa28b732-0512-49ed-a47b-f20586c0f051")
("github" . "https://github.com/%s")))
;;;###autoload
(define-derived-mode doom-docs-org-mode org-mode "Doom Docs"
"A derivative of `org-mode' for Doom's documentation files.
Keeps track of its own IDs in `doom-docs-dir' and toggles `doom-docs-mode' when
`read-only-mode' is activated."
:after-hook (visual-line-mode -1)
(require 'org-id)
(require 'ob)
(setq-local org-id-link-to-org-use-id t
org-id-method 'uuid
org-id-track-globally t
org-id-locations-file (doom-path doom-cache-dir "doom-docs-org-ids")
org-id-locations doom--docs-id-locations
org-id-files doom--docs-id-files
org-num-max-level 3
org-footnote-define-inline nil
org-footnote-auto-label t
org-footnote-auto-adjust t
wgrep-change-readonly-file t
org-link-abbrev-alist-local (append org-link-abbrev-alist-local doom-docs-link-alist)
org-babel-default-header-args
(append '((:eval . "no") (:tangle . "no"))
org-babel-default-header-args)
save-place-ignore-files-regexp ".")
(unless org-inhibit-startup
(doom/reload-docs)
(unless (local-variable-p 'org-startup-with-inline-images)
(org-display-inline-images))
(unless (local-variable-p 'org-startup-indented)
(org-indent-mode +1))
(unless (local-variable-p 'org-startup-numerated)
(when (bound-and-true-p org-num-mode)
(org-num-mode -1))
(org-num-mode +1))
(unless (local-variable-p 'org-startup-folded)
(let ((org-startup-folded 'content))
(org-set-startup-visibility))))
(add-hook 'read-only-mode-hook #'doom--docs-toggle-read-only-h nil 'local)
(org-with-limited-levels
(end-of-line)
(null (re-search-forward org-outline-regexp-bol nil t))))
;;;###autoload
(defun doom-docs-read-only-h ()
"Activate `read-only-mode' if the current file exists and is non-empty."
;; The rationale: if it's empty or non-existant, you want to write an org
;; file, not read it.
(let ((file-name (buffer-file-name (buffer-base-buffer))))
(when (and file-name
(> (buffer-size) 0)
(not (string-prefix-p "." (file-name-base file-name)))
(file-exists-p file-name))
(read-only-mode +1))))
;;;###autoload (add-hook 'doom-docs-org-mode-hook #'doom-docs-read-only-h)
;;
;;; Custom links
;;;###autoload
(defun doom-docs-read-link-desc-at-point (&optional default context)
"TODO"
(if (and (stringp default) (not (string-empty-p default)))
(string-trim default)
(if-let* ((context (or context (org-element-context)))
(context (org-element-lineage context '(link) t))
(beg (org-element-property :contents-begin context))
(end (org-element-property :contents-end context)))
(unless (= beg end)
(replace-regexp-in-string
"[ \n]+" " " (string-trim (buffer-substring-no-properties beg end)))))))
;;;###autoload
(defun doom-docs-doom-module-link-follow-fn (link)
(cl-destructuring-bind (&key category module flag)
(doom--docs-read-module-link link)
(when category
(let ((doom-modules-dirs (list doom-modules-dir)))
(if-let* ((path (doom-module-locate-path category module))
(path (or (car (doom-glob path "README.org"))
path)))
(find-file path)
(user-error "Can't find Doom module '%s'" link))))
(when flag
(goto-char (point-min))
(when (and (re-search-forward "^\\*+ \\(?:TODO \\)?Module flags")
(re-search-forward (format "^\\s-*- \\+%s ::[ \n]"
(substring (symbol-name flag) 1))
(save-excursion (org-get-next-sibling)
(point))))
(org-show-entry)
(recenter)))))
;;;###autoload
(defun doom-docs-doom-module-link-face-fn (link)
(cl-destructuring-bind (&key category module flag)
(doom--docs-read-module-link link)
(if (doom-module-locate-path category module)
`(:inherit org-priority
:weight bold)
'error)))
;;;###autoload
(defun doom-docs-doom-package-link-follow-fn (link)
"TODO"
(doom/describe-package
(intern-soft
(doom-docs-read-link-desc-at-point link))))
;;;###autoload
(defun doom-docs-make-symbol-link (fn)
"TODO"
(lambda (link)
(let ((desc (doom-docs-read-link-desc-at-point link)))
(funcall
fn (or (intern-soft desc)
(user-error "Can't find documentation for %S" desc))))))
(defun doom--docs-describe-kbd (keystr)
(dolist (key `(("<leader>" . ,doom-leader-key)
("<localleader>" . ,doom-localleader-key)
("<prefix>" . ,(if (bound-and-true-p evil-mode)
(concat doom-leader-key " u")
"C-u"))
("<help>" . ,(if (bound-and-true-p evil-mode)
(concat doom-leader-key " h")
"C-h"))
("\\<M-" . "alt-")
("\\<S-" . "shift-")
("\\<s-" . "super-")
("\\<C-" . "ctrl-")))
(setq keystr
(replace-regexp-in-string (car key) (cdr key)
keystr t t)))
keystr)
;;;###autoload
(defun doom-docs-read-kbd-at-point (&optional default context)
"TODO"
(doom--docs-describe-kbd
(doom-docs-read-link-desc-at-point default context)))
;;;###autoload
(after! org
;; Add "lookup" links for packages and keystrings; useful for Emacs
;; documentation -- especially Doom's!
(org-link-set-parameters
"kbd"
:follow (lambda (_) (minibuffer-message "%s" (doom--display-docs-link-in-eldoc-a)))
:help-echo #'doom-docs-read-kbd-at-point
:face 'help-key-binding)
(org-link-set-parameters
"var"
:follow (doom-docs-make-symbol-link #'helpful-variable)
:face '(font-lock-variable-name-face underline))
(org-link-set-parameters
"fn"
:follow (doom-docs-make-symbol-link #'helpful-callable)
:face '(font-lock-function-name-face underline))
(org-link-set-parameters
"face"
:follow (doom-docs-make-symbol-link #'describe-face)
:face '(font-lock-type-face underline))
(org-link-set-parameters
"doom-ref"
:follow (lambda (link)
(let ((link (doom-docs-read-link-desc-at-point link))
(url "https://github.com")
(doom-repo "hlissner/doom-emacs"))
(save-match-data
(browse-url
(cond ((string-match "^\\([^/]+\\(?:/[^/]+\\)?\\)?#\\([0-9]+\\(?:#.*\\)?\\)" link)
(format "%s/%s/issues/%s" url
(or (match-string 1 link)
doom-repo)
(match-string 2 link)))
((string-match "^\\([^/]+\\(?:/[^/]+\\)?@\\)?\\([a-z0-9]\\{7,\\}\\(?:#.*\\)?\\)" link)
(format "%s/%s/commit/%s" url
(or (match-string 1 link)
doom-repo)
(match-string 2 link)))
((user-error "Invalid doom-ref link: %S" link)))))))
:face (lambda (link)
(let ((link (doom-docs-read-link-desc-at-point link)))
(if (or (string-match "^\\([^/]+\\(?:/[^/]+\\)?\\)?#\\([0-9]+\\(?:#.*\\)?\\)" link)
(string-match "^\\([^/]+\\(?:/[^/]+\\)?@\\)?\\([a-z0-9]\\{7,\\}\\(?:#.*\\)?\\)" link))
'org-link
'error))))
(org-link-set-parameters
"doom-user"
:follow (lambda (link)
(browse-url
(format "https://github.com/%s"
(string-remove-prefix
"@" (doom-docs-read-link-desc-at-point link)))))
:face (lambda (_) 'org-priority))
(org-link-set-parameters
"doom-package"
:follow #'doom-docs-doom-package-link-follow-fn
:face (lambda (_) '(:inherit org-priority :slant italic)))
(org-link-set-parameters
"doom-module"
:follow #'doom-docs-doom-module-link-follow-fn
:face #'doom-docs-doom-module-link-face-fn)
(org-link-set-parameters
"doom-changelog"
:follow (lambda (link)
(find-file (doom-path doom-docs-dir "changelog.org"))
(org-match-sparse-tree nil link)))
(add-to-list 'org-link-abbrev-alist '("doom-repo" . "https://github.com/hlissner/doom-emacs/%s"))
(defadvice! doom--display-docs-link-in-eldoc-a (&rest _)
"Display full doom-*: links in minibuffer when cursor/mouse is over it."
:before-until #'org-eldoc-documentation-function
(when-let* ((context (org-element-context))
(path (org-element-property :path context)))
(pcase (org-element-property :type context)
("kbd"
(format "%s %s"
(propertize "Key sequence:" 'face 'bold)
(propertize (doom-docs-read-kbd-at-point path context)
'face 'help-key-binding)))
("doom-module"
(format "%s %s"
(propertize "Doom module:" 'face 'bold)
(propertize (doom-docs-read-link-desc-at-point path)
'face 'org-priority)))
("doom-package"
(format "%s %s"
(propertize "Doom package:" 'face 'bold)
(propertize (doom-docs-read-link-desc-at-point path)
'face 'org-priority)))))))
(defun doom--docs-read-module-link (link)
(cl-destructuring-bind (category &optional module flag)
(let ((desc (doom-docs-read-link-desc-at-point link)))
(if (string-prefix-p "+" (string-trim-left desc))
(list nil nil (intern desc))
(mapcar #'intern (split-string desc " " nil))))
(list :category category
:module module
:flag flag)))