├── LICENSE ├── README.md ├── ofa.png └── org-footnote-assistant.el /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. By contrast, 15 | the GNU General Public License is intended to guarantee your freedom to 16 | share and change all versions of a program--to make sure it remains free 17 | software for all its users. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Org-footnote-assistant 2 | 3 | A minor mode for editing and browsing org-footnotes from an indirect buffer in a 4 | side window. 5 | 6 | ## Introduction 7 | 8 | The package **org-footnote-assistant** is designed to enhance the functionality 9 | of footnotes in Org Mode. It provides additional features and keybindings to 10 | assist in navigating, editing, and managing footnotes within an Org Mode buffer. 11 | 12 | ## Improved Footnote Viewing and Editing 13 | 14 | This package might offer a solution to the limited inline viewing of Org Mode 15 | footnotes, which can often hinder the reviewing and modification of content. In 16 | Org Mode, the content of footnotes is not directly visible from the text, and 17 | vice versa, making it harder to seamlessly review or modify the content. 18 | Additionally, navigating between footnote references and their corresponding 19 | content can be cumbersome, disrupting the flow of reading or writing. With 20 | **org-footnote-assistant**, you can easily navigate between footnote references, 21 | view their definitions in an editable buffer, and streamline your workflow when 22 | working with footnotes in Org Mode. 23 | 24 | ![Org-footnote-assistant](./ofa.png) 25 | 26 | ## Functionality 27 | 28 | The package defines a minor mode called `org-footnote-assistant-mode` that can 29 | be toggled on or off. When activated, it adds several keybindings to the Org 30 | Mode keymap to facilitate working with footnotes. 31 | 32 | Here is an overview of the functionality provided by **org-footnote-assistant**: 33 | 34 | 1. **Navigation:** The package allows you to quickly navigate between footnote 35 | references in an Org Mode buffer. The keybinding `C-c C-n` 36 | (`org-footnote-assistant-goto-next-footnote`) moves the cursor to the next 37 | footnote reference in the buffer, while `C-c C-p` 38 | (`org-footnote-assistant-goto-previous-footnote`) moves to the previous 39 | footnote reference. 40 | 41 | 2. **Definition Display:** The command `org-footnote-assistant--show-definition` 42 | narrows the buffer to the region of the current footnote definition if the 43 | cursor is positioned at a footnote reference. It retrieves the label of the 44 | current footnote and uses it to determine the corresponding definition's 45 | location. The narrowed buffer with the footnote definition is displayed in a 46 | separate window. 47 | 48 | 3. **Footnote Editing Window:** The function 49 | `org-footnote-assistant--create-editor-window` is responsible for creating 50 | and managing the "*footnote-editor*" buffer, which displays the narrowed 51 | region containing the footnote definition. If the "*footnote-editor*" buffer 52 | already exists and is related to the current buffer, it narrows the buffer to 53 | the new definition region and displays it. If the buffer exists but is not 54 | related to the current buffer, it is killed and a new indirect buffer is 55 | created. If the buffer does not exist, a new indirect buffer is created. 56 | 57 | 4. **Customized Footnote Definition Jumping:** The package overrides the default 58 | behavior of `org-footnote-goto--definition` with the modified function 59 | `org-footnote-assistant--goto-definition`. This function integrates with 60 | `org-footnote-assistant--create-editor-window` to jump to the definition of a 61 | specified footnote label. It narrows the buffer to the definition region and 62 | positions the cursor at the appropriate location. 63 | 64 | 65 | 5. **Enhanced Footnote Reference Searching:** The package also modifies the 66 | behavior of `org-footnote-goto-previous-reference` by advising the function 67 | with `org-goto-previous-reference-advice`. This advice ensures that if the 68 | current buffer is the "*footnote-editor*" buffer, the focus is switched to 69 | the base buffer where the original footnote reference was found. 70 | 71 | 6. **Eeasier Footnote Deletion:** To delete a footnote, you can use the 72 | `org-footnote-assistant-delete-footnote` function. By default, this function 73 | prompts for confirmation before deleting the footnote. However, you can 74 | customize this behavior by setting the variable 75 | `org-footnote-assistant-ask-before-delete` to nil in your Emacs configuration 76 | file. 77 | 78 | In summary, "org-footnote-assistant" provides convenient keybindings for 79 | navigating between footnote references, displaying the definitions in an 80 | editable buffer, and customizing the behavior of footnote definition jumping. It 81 | enhances the overall experience of working with footnotes in Org Mode by 82 | simplifying navigation and providing a dedicated editing environment for 83 | footnote definitions. 84 | 85 | ## Usage 86 | 87 | `org-footnote-assistant` is not yet available on ELPA/MELPA, and needs to be checked. 88 | out directly from git. 89 | 90 | Installation with `straight.el`: 91 | 92 | ```emacs-lisp 93 | (straight-use-package '(org-footnote-assistant :type git :host github :repo "lazzalazza/org-footnote-assistant")) 94 | ``` 95 | 96 | Easy setup: 97 | 98 | ```emacs-lisp 99 | (require 'org-footnote-assistant) 100 | (org-footnote-assistant-mode 1) 101 | ``` 102 | 103 | Alternatively, you could use this sample `use-package` configuration: 104 | 105 | ```emacs-lisp 106 | (use-package org-footnote-assistant 107 | :commands (org-footnote-assistant) 108 | :after (org) 109 | :init 110 | (org-footnote-assistant-mode 1)) 111 | ``` 112 | 113 | ## Feedback and Collaboration 114 | 115 | This is my first Org Mode package, and I am eager to receive feedback and 116 | external input from the community. I encourage you to try out the package, test 117 | its functionality, and explore how it can improve your experience working with 118 | footnotes in Org Mode. 119 | 120 | Your feedback is valuable in enhancing and extending the functionality of the 121 | code. If you have ideas for additional features or improvements, I am open to 122 | suggestions. Together, we can make this package more robust and user-friendly. 123 | 124 | -------------------------------------------------------------------------------- /ofa.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/lazzalazza/org-footnote-assistant/6b5bb131978c0c5bcabe653d8ba54f38b33ae20a/ofa.png -------------------------------------------------------------------------------- /org-footnote-assistant.el: -------------------------------------------------------------------------------- 1 | ;;; org-footnote-assistant.el --- summary -*- lexical-binding: t -*- 2 | 3 | ;; Author: Andrea Lazzarini 4 | ;; Maintainer: Andrea Lazzarini 5 | ;; Version: 0.01 6 | ;; Package-Requires: ((org "8.0.0")) 7 | ;; Homepage: https://github.com/lazzalazza/org-footnote-assistant/ 8 | ;; Keywords: org-footnote, org-mode 9 | 10 | ;; This file is not part of GNU Emacs 11 | 12 | ;; This program is free software: you can redistribute it and/or modify 13 | ;; it under the terms of the GNU General Public License as published by 14 | ;; the Free Software Foundation, either version 3 of the License, or 15 | ;; (at your option) any later version. 16 | 17 | ;; This program is distributed in the hope that it will be useful, 18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of 19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 | ;; GNU General Public License for more details. 21 | 22 | ;; You should have received a copy of the GNU General Public License 23 | ;; along with this program. If not, see . 24 | 25 | 26 | ;;; Commentary: 27 | 28 | ;; This package provides additional functionality to Emacs Org mode for handling 29 | ;; footnotes. It defines functions that allow the user to navigate between 30 | ;; footnote references and their definitions, edit the definitions in a separate 31 | ;; buffer, and delete footnotes. 32 | 33 | ;; The 'org-footnote-assistant--show-definition' function narrows the buffer to 34 | ;; the region of the current footnote definition, if the point is currently at a 35 | ;; footnote reference. The 'org-footnote-assistant--create-editor-window' 36 | ;; function creates a new buffer or selects an existing buffer named 37 | ;; "*footnote-editor*", narrows it to the footnote definition region, and 38 | ;; switches to it. The 'org-footnote-assistant-goto-next-footnote' function 39 | ;; finds the next or previous footnote reference and opens the narrowed buffer. 40 | ;; The 'org-footnote-assistant--goto-definition' function moves the point to the 41 | ;; definition of the specified footnote label. 42 | ;; 'org-footnote-assistant-delete-footnote' prompts for confirmation before 43 | ;; deleting the footnote. However, you can customize this behavior by setting 44 | ;; the variable 'org-footnote-assistant-ask-before-delete' to nil. 45 | 46 | ;;; Code: 47 | 48 | ;; Dependencies 49 | (require 'org) 50 | 51 | 52 | ;;; Constants and customization 53 | 54 | (defconst org-footnote-reference-re "[^\n]\\[fn:\\(?:\\(?1:[-_[:word:]]+\\)?\\(:\\)\\|\\(?1:[-_[:word:]]+\\)\\]\\)") 55 | 56 | (defcustom org-footnote-assistant-ask-before-delete t 57 | "Whether to ask for permission before deleting a footnote." 58 | :type 'boolean 59 | :group 'org-footnote-assistant-mode) ;; the org-footnote-assistant-mode is 60 | ;; automatically set by the 61 | ;; define-minor-mode command 62 | 63 | 64 | ;;TODO Set custom key combination for next and previous footnote 65 | 66 | 67 | ;;; Getters 68 | 69 | ;; TODO This getter might be more useful: see if it can be used elsewhere or 70 | ;; rewrite the 'org-footnote-assistant-delete-footnote' function 71 | 72 | (defun org-footnote-assistant--get-label () 73 | "Return the footnote reference number at point. 74 | If the cursor is inside a footnote reference, return the reference number. 75 | If the cursor is inside a footnote definition, return the number of the definition. 76 | If the cursor is not inside a footnote, return nil." 77 | (cond 78 | ;; Check if cursor is inside a footnote reference 79 | ((org-footnote-at-reference-p) 80 | (car (org-footnote-at-reference-p))) 81 | ;; Check if cursor is inside a footnote definition 82 | ((org-footnote-at-definition-p) 83 | (car (org-footnote-at-definition-p))) 84 | ;; Cursor is not inside a footnote 85 | (t nil))) 86 | 87 | 88 | ;;; Footnote editor / base buffer management functions 89 | 90 | (defun org-footnote-assistant--current-buffer-related-to-editor-p () 91 | "Check if the current buffer is the indirect buffer 92 | '*footnote-editor*' or is related to it." 93 | (let* ((cur-buf (current-buffer)) 94 | (edit-buf (get-buffer "*footnote-editor*"))) 95 | (with-current-buffer edit-buf 96 | (if (or (eq cur-buf edit-buf) (eq (buffer-base-buffer) cur-buf)) 97 | t 98 | nil)))) 99 | 100 | (defun org-footnote-assistant--delete-editor-window () 101 | "Kill the buffer if it already exists." 102 | (when (get-buffer "*footnote-editor*") 103 | (kill-buffer "*footnote-editor*"))) 104 | 105 | (defun org-footnote-assistant--show-definition () 106 | "Narrows the buffer to the region of the current footnote 107 | definition, if the point is currently at a footnote reference." 108 | (interactive) 109 | (when (org-footnote-at-reference-p) 110 | ;; Get the label of the current footnote. 111 | (let* ((label (org-element-property :label (org-element-context))) 112 | ;; Get the beginning and end of the footnote definition region. 113 | (definition-begin (nth 1 (org-footnote-get-definition label))) 114 | (definition-end (nth 2 (org-footnote-get-definition label)))) 115 | (org-footnote-assistant--create-editor-window definition-begin definition-end)))) 116 | 117 | (defun org-footnote-assistant--create-editor-window (begin end) 118 | (let ((buf (get-buffer "*footnote-editor*"))) 119 | (when buf 120 | (if (org-footnote-assistant--current-buffer-related-to-editor-p) 121 | ;; If the buffer exists and is related to the current buffer, 122 | ;; narrow to the footnote definition region and display the buffer. 123 | (with-current-buffer buf 124 | (narrow-to-region begin end) 125 | (pop-to-buffer buf t) 126 | (beginning-of-buffer)) 127 | ;; If the buffer exists but is not related to the current buffer, 128 | ;; kill it and create a new indirect buffer. 129 | (progn 130 | (kill-buffer buf) 131 | (setq buf nil)))) 132 | ;; If the buffer does not exist, create a new indirect buffer. 133 | (unless buf 134 | (setq buf (switch-to-buffer-other-window (clone-indirect-buffer "*footnote-editor*" nil)))) 135 | 136 | ;; Narrow to the footnote definition region in the buffer. 137 | (with-current-buffer buf 138 | (narrow-to-region begin end)))) 139 | 140 | 141 | ;;; Scrolling functions 142 | 143 | ;;;###autoload 144 | (defun org-footnote-assistant-goto-next-footnote (&optional backward) 145 | "Finds the next footnote and opens the narrowed buffer. If 146 | BACKWARD is non-nil, it finds the previous reference." 147 | (interactive) 148 | 149 | ;; If we're in the *footnote-editor* buffer... 150 | (when (string-equal (buffer-name) "*footnote-editor*") 151 | ;; If the base buffer is already open in another window, go to that window 152 | (if (get-buffer-window (buffer-name (buffer-base-buffer))) 153 | (select-window (get-buffer-window (buffer-name (buffer-base-buffer)))) 154 | ;; Otherwise, switch to the base buffer 155 | (switch-to-buffer (buffer-base-buffer)))) 156 | 157 | ;; If we're not in the *footnote-editor* buffer... 158 | (if (not backward) 159 | ;; If we're going forward, search for the next footnote reference and 160 | ;; narrow to its definition 161 | (progn 162 | (when (re-search-forward org-footnote-reference-re nil t) 163 | (backward-char) 164 | (org-footnote-assistant--show-definition))) 165 | ;; If we're going backward, search for the previous footnote reference and 166 | ;; narrow to its definition 167 | (progn 168 | (when (re-search-backward org-footnote-reference-re nil t) 169 | (forward-char) 170 | (org-footnote-assistant--show-definition))))) 171 | 172 | ;;;###autoload 173 | (defun org-footnote-assistant-goto-previous-footnote () 174 | "Searches previous footnote reference. A wrapper 175 | for (org-footnote-assistant-goto-next-footnote t)" 176 | (interactive) 177 | (org-footnote-assistant-goto-next-footnote t)) 178 | 179 | 180 | ;; Footnote editing/deleting functions 181 | 182 | ;;;###autoload 183 | (defun org-footnote-assistant-delete-footnote () 184 | "Deletes footnote reference and definition. Wrapper for org-footnote-delete." 185 | (interactive) 186 | (let* ((label (org-footnote-assistant--get-label))) 187 | (when (or (not org-footnote-assistant-ask-before-delete) 188 | (y-or-n-p (concat "Really delete footnote " label "? "))) 189 | (if (buffer-base-buffer) 190 | (with-current-buffer (buffer-base-buffer) 191 | (org-footnote-delete label)) 192 | (org-footnote-delete label))))) 193 | 194 | 195 | ;;; Advised functions: they modify the behavior of org-footnote.el functions 196 | 197 | (defun org-footnote-assistant--goto-definition (label &optional location) 198 | "Modified version of 'org-footnote-goto-definition' that integrates 199 | 'org-footnote-assistant--create-editor-window' Move point to the 200 | definition of the footnote LABEL. 201 | 202 | LOCATION, when non-nil specifies the buffer position of the 203 | definition. 204 | 205 | Throw an error if there is no definition or if it cannot b 206 | reached from current narrowed part of buffer. Return a non-nil 207 | value if point was successfully moved." 208 | (interactive "sLabel: ") 209 | (let* ((label (org-footnote-normalize-label label)) 210 | (def-start (or location (nth 1 (org-footnote-get-definition label)))) 211 | (def-end (nth 2 (org-footnote-get-definition label)))) 212 | (cond 213 | ((not def-start) 214 | (user-error "Cannot find definition of footnote %s" label)) 215 | ((or (> def-start (point-max)) (< def-start (point-min))) 216 | (user-error "Definition is outside narrowed part of buffer"))) 217 | ;; (org-mark-ring-push) 218 | (org-footnote-assistant--create-editor-window def-start def-end) 219 | (looking-at (format "\\[fn:%s[]:]" (regexp-quote label))) 220 | (goto-char (match-end 0)) 221 | (org-fold-show-context 'link-search) 222 | (when (derived-mode-p 'org-mode) 223 | (message "%s" (substitute-command-keys 224 | "Edit definition and go back with \ 225 | `\\[org-mark-ring-goto]' or, if unique, with `\\[org-ctrl-c-ctrl-c]'."))) 226 | t)) 227 | 228 | ;;;###autoload 229 | (defun org-goto-previous-reference-advice (orig-fun &rest args) 230 | (if (eq (current-buffer) (get-buffer "*footnote-editor*")) 231 | (let ((base-buffer (buffer-base-buffer))) 232 | (if (get-buffer-window base-buffer) 233 | (select-window (get-buffer-window base-buffer)) 234 | (switch-to-buffer-other-window base-buffer)))) 235 | (apply orig-fun args)) 236 | 237 | ;;; Advice management 238 | 239 | (defun org-footnote-assistant--add-advices () 240 | (advice-add 'org-footnote-goto-definition :override #'org-footnote-assistant--goto-definition) 241 | (advice-add 'org-footnote-goto-previous-reference :around #'org-goto-previous-reference-advice)) 242 | 243 | (defun org-footnote-assistant--remove-advices () 244 | (advice-remove 'org-footnote-goto-definition 'org-footnote-assistant--goto-definition) 245 | (advice-remove 'org-footnote-goto-previous-reference 'org-goto-previous-reference-advice)) 246 | 247 | 248 | ;;; Minor mode 249 | 250 | ;;TODO Set custom key combination for next and previous footnote 251 | (defvar org-footnote-assistant-mode-map 252 | (let ((map (make-sparse-keymap))) 253 | (define-key map (kbd "C-c f n") 'org-footnote-assistant-goto-next-footnote) 254 | (define-key map (kbd "C-c f p") 'org-footnote-assistant-goto-previous-footnote) 255 | map)) 256 | 257 | (define-minor-mode org-footnote-assistant-mode 258 | "Toggles org-footnote-assistant-mode" 259 | :init-value nil 260 | :global t 261 | :group 'org 262 | :lighter " ofa" 263 | :interactive '(org-mode) 264 | 265 | (if org-footnote-assistant-mode 266 | (progn 267 | (message "org-footnote-assistant mode activated!") 268 | (org-footnote-assistant--add-advices)) 269 | (progn 270 | (org-footnote-assistant--remove-advices) 271 | (org-footnote-assistant--delete-editor-window) 272 | (message "org-footnote-assistant-mode deactivated!")))) 273 | 274 | (provide 'org-footnote-assistant) 275 | 276 | ;;; org-footnote-assistant.el ends here 277 | 278 | 279 | 280 | --------------------------------------------------------------------------------