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| author | Craig Jennings <c@cjennings.net> | 2025-10-12 11:47:26 -0500 |
|---|---|---|
| committer | Craig Jennings <c@cjennings.net> | 2025-10-12 11:47:26 -0500 |
| commit | 092304d9e0ccc37cc0ddaa9b136457e56a1cac20 (patch) | |
| tree | ea81999b8442246c978b364dd90e8c752af50db5 /modules/help-config.el | |
changing repositories
Diffstat (limited to 'modules/help-config.el')
| -rw-r--r-- | modules/help-config.el | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/modules/help-config.el b/modules/help-config.el new file mode 100644 index 00000000..6ef9b434 --- /dev/null +++ b/modules/help-config.el @@ -0,0 +1,108 @@ +;;; help-config --- Help Functionality Configuration -*- lexical-binding: t; coding: utf-8; -*- +;; author Craig Jennings <c@cjennings.net> + +;;; Commentary: +;; +;; This module enhances Emacs' built-in help system and documentation features. +;; It configures: +;; +;; 1. Helpful - A better help buffer that provides context, examples, and source code +;; 2. Man - Man page viewing integration +;; 3. Info - Enhanced Info mode with custom keybindings and directory configuration +;; +;; The configuration prioritizes discoverability and improves the experience of +;; reading documentation within Emacs. Custom keybindings maintain the C-h prefix +;; convention for help-related commands. + +;;; Code: + + +(setq help-window-select t) ;; Always select the help buffer in a separate window + +(global-set-key (kbd "C-h P") 'list-packages) ;; bring up the package menu + +;; ---------------------------------- Helpful ---------------------------------- + +(use-package helpful + :if (version< emacs-version "30") + :defer .5 + :bind + ("C-h f" . helpful-callable) + ("C-h v" . helpful-variable) + ("C-h k" . helpful-key) + ("C-h F" . helpful-function) + ("C-h C" . helpful-command) + ("C-h ." . helpful-at-point) + ("C-h o" . helpful-symbol)) ;; overrides 'describe-symbol' keybinding + +;; ------------------------------------ Man ------------------------------------ + +(use-package man + :defer 1 + :ensure nil ;; built-in + :bind ("C-h M" . man)) + +;; ------------------------------------ Info ----------------------------------- + + (defun cj/open-with-info-mode () + "Open the current buffer's file in Info mode if it's a valid info file. + +Preserves any unsaved changes and checks if the file exists." + (interactive) + (let ((file-name (buffer-file-name))) + (when file-name + (if (and (file-exists-p file-name) + (string-match-p "\\.info\\'" file-name)) + (progn + (when (buffer-modified-p) + (if (y-or-n-p "Buffer has unsaved changes. Save before opening in Info? ") + (save-buffer) + (message "Operation canceled") + (cl-return-from cj/open-with-info-mode))) + (kill-buffer (current-buffer)) + (info file-name)) + (message "Not a valid info file: %s" file-name))))) + +(defun cj/browse-info-files () + "Browse and open .info or .info.gz files from user-emacs-directory." + (interactive) + (let* ((info-files (directory-files-recursively + user-emacs-directory + "\\.info\\(\\.gz\\)?$")) + (files-alist (mapcar (lambda (f) + (cons (file-name-nondirectory f) f)) + info-files)) + (chosen-name (completing-read + "Select Info file: " + (mapcar #'car files-alist) + nil t)) + (chosen-file (cdr (assoc chosen-name files-alist)))) + (when chosen-file + (info chosen-file)))) + +(global-unset-key (kbd "C-h i")) +(global-set-key (kbd "C-h i") #'cj/browse-info-files) + + +(use-package info + :ensure nil ;; built-in + :bind + (:map Info-mode-map + ("m" . bookmark-set) ;; Rebind 'm' from Info-menu to bookmark-set + ("M" . Info-menu)) ;; Move Info-menu to 'M' instead + :preface + :init + ;; Add personal info files BEFORE Info mode initializes + ;; (let ((personal-info-dir (expand-file-name "assets/info" user-emacs-directory))) + ;; (when (file-directory-p personal-info-dir) + ;; (setq Info-directory-list (list personal-info-dir)))) + ;; the above makes the directory the info list. the below adds it to the default list + ;; (add-to-list 'Info-default-directory-list personal-info-dir))) + :hook + (info-mode . info-persist-history-mode) + :config + ;; Make .info files open with our custom function + (add-to-list 'auto-mode-alist '("\\.info\\'" . cj/open-with-info-mode))) + +(provide 'help-config) +;;; help-config.el ends here. |
