#+title: Emacs setup for use with LaTeX, Org, and Python #+author: Gerard Vermeulen #+latex_class: article #+latex_class_options: [11pt,a4paper,english,svgnames,tables] #+setupfile: "setup-include.org" #+include: "setup-include.org" * Quick start :PROPERTIES: :CUSTOM_ID: sec:quick-start :END: Backup your =user-emacs-directory= (defaults often to =~/.emacs.d= on =Linux=, =Unix=, or =Darwin=) directory and execute the commands in listing [[lst:prepare-user-emacs-directory]]. After invoking Emacs interactively (in interactive mode, neither in batch mode, nor in server mode), Emacs will ask you to install a selected set of packages. Quit Emacs and invoke Emacs again. #+caption[Prepare the user-emacs-directory]: #+caption: Clone and initialize the user-emacs-directory. #+name: lst:prepare-user-emacs-directory #+begin_src shell :noeval :tangle no cd ~ git clone ccdr@mercury.grenoble.cnrs.fr:SERVER/emacs.d.git .emacs.d make --directory=.emacs.d init emacs & #+end_src * Introduction :PROPERTIES: :CUSTOM_ID: sec:introduction :END: This Emacs setup aims to install automatically a minimal set of extension packages that allows to handle my reports and presentations. The file format of the reports is [[https://orgmode.org/][Org Mode]] plain text with [[https://www.python.org/][Python]] source code blocks and the file format of the presentations is [[https://www.latex-project.org/][LaTeX]]. This [[info:org#Top][org]] file (more precisely the original [[info:org#Top][org]] source file of this file) illustrates three methods in my work-flow: 1. How to tangle (or export) source blocks from [[info:org#Top][org]] files. This file contains source blocks to produce the files =early-init.el=, =init.el=, =latexmkrc=, =org-store-link=, and =example.py= by tangling. 2. How to export [[info:org#Top][org]] files to other formats such as [[https://en.wikipedia.org/wiki/HTML][HTML]], [[https://www.latex-project.org/][LaTeX]], and [[https://en.wikipedia.org/wiki/PDF][PDF]]. 3. How [[info:org#Hyperlinks][org hyperlinks (info)]] allow to link inside and outside [[info:org#Top][Org Mode]]: hover over or click on the links to experiment. The [[https://en.wikipedia.org/wiki/AUCTeX][AUCTeX - Aalborg University Center TeX]] extension package provides a powerful [[https://en.wikipedia.org/wiki/Text-based_user_interface][Text-based User Interface (TUI)]] environment to edit the [[https://www.latex-project.org/][LaTeX]] presentations. The [[https://github.com/bdarcus/citar][citar]] extension package provides quick filtering and selecting of bibliographic entries, and the option to run different commands on those selections. [[https://github.com/bdarcus/citar][Citar]] requires [[info:org#Top][Org-9.5 (info)]], which is already part of Emacs-28.1. [[https://github.com/bdarcus/citar][Citar]] exploits the enhancements of Emacs' builtin selection mechanism provided by the extension packages [[https://github.com/minad/vertico][vertico]], [[https://github.com/oantolin/orderless][orderless]], [[https://github.com/oantolin/embark][embark]], [[https://github.com/minad/marginalia][marginalia]], and [[https://github.com/minad/consult][consult]]. The [[https://github.com/andras-simonyi/citeproc-el][citeproc]] extension package provides [[https://citationstyles.org/][CSL: citation style language]] processing capabilities to [[https://github.com/bdarcus/citar][citar]] and [[https://orgmode.org/][Org Mode]]. The [[https://github.com/vedang/pdf-tools][pdf-tools]] extension package renders [[https://en.wikipedia.org/wiki/PDF][PDF]] file with the possibility to annotate the file or to click on anchors in the [[https://en.wikipedia.org/wiki/PDF][PDF]] file that link back to the original [[https://www.latex-project.org/][LaTeX]] file of the document. An example of my work-flow are the steps to convert this [[info:org#Top][org]] file to [[https://en.wikipedia.org/wiki/PDF][PDF]] and to see the result with [[https://github.com/vedang/pdf-tools][pdf-tools]] in Emacs: execute the commands ~pdf-tools-install~, ~org-babel-tangle~, ~org-latex-export-latex-to-latex~, and ~compile~. This sets up an infinite [[https://www.latex-project.org/][LaTeX]] compilation loop to update and redisplay the [[https://en.wikipedia.org/wiki/PDF][PDF]] file after excution of the ~org-latex-export-latex-to-latex~ command in this buffer. Here follows a list of interesting Emacs configurations: 1. [[https://github.com/alhassy/emacs.d][Musa Al-hassy's configuration]] is an impressive example of producing the Emacs initialization files and other files by tangling an [[info:org#Top][org]] file. His methodology is impressive, as his [[https://alhassy.github.io/ElispCheatSheet/][Elisp Cheat Sheet]] and [[https://alhassy.github.io/org-special-block-extras/][org-special-block-extra package]] show. To me, this is a configuration to admire, but his methodology is way over my head. 2. [[https://github.com/oantolin/emacs-config][Omar Antolín Camarena's configuration]] exploits built-in packages, Omar's own small packages, and large external packages. Omar is the author of [[https://github.com/oantolin/orderless][orderless]] and [[https://github.com/oantolin/embark][embark]]. I have stolen his idea of using ~custom-set-variables~ instead of the customize interface although that is [[https://www.masteringemacs.org/article/bad-emacs-advice][bad Emacs advice]] for new users. 3. [[https://gitlab.com/ambrevar/dotfiles][Pierre Neirhardt's configuration]] implements lazy loading without help of external packages. I have stolen his approach of using lazy loading to silently ignore the setup stanzas of uninstalled extension packages. 4. [[https://sachachua.com/dotemacs/][Sacha Chua's configuration]] is a practical example of producing the Emacs initialization files by tangling an [[info:org#Top][org]] file. It gives me the impression that she is a very practical person trying to achieve her goals by the most efficient means. I have stolen her idea of using [[https://github.com/quelpa/quelpa][quelpa]] to install packages from any source. 5. [[https://github.com/purcell/emacs.d][Steve Purcell's configuration]] is well organized, a showcase of readable code, as well helpful commit and issue histories. See for instance the discussion on [[https://github.com/purcell/emacs.d/issues/778][the correctness of order of company candidates in Emacs lisp mode]]. Here follows a list of links on how to use Emacs and Elisp: 1. [[https://protesilaos.com/codelog/2022-01-31-learning-emacs/][Learning Emacs and Elisp]] is a link to a video tutorial with a transcript on the best approach to learn Emacs and Elisp. 2. [[https://www.masteringemacs.org/][Mastering Emacs]] is a link to a blog with many interesting posts that promotes a book on how to become a proficient Emacs user. 3. [[https://endlessparentheses.com/][Endless Parentheses]] is a blog with many mindblowing code snippets. * [[info:emacs#Early Init File][Early Init File (info)]] :PROPERTIES: :CUSTOM_ID: sec:early-init-file :END: Try to load [[https://github.com/emacscollective/no-littering][no-littering]] as early as possible, since it helps to keep =~/.emacs.d= clean. #+caption[Tangle the early-init-file]: #+caption: Tangle the early-init-file. #+name: lst:tangle-early-init-file #+begin_src emacs-lisp :tangle early-init.el ;;; early-init.el --- user early-init file -*- lexical-binding: t -*- ;;; Commentary: ;;; Code: (setq load-prefer-newer t) (require 'no-littering nil 'noerror) (provide 'early-init) ;; Emacs looks for "Local variables:" after the last "?\n?\f". ;; Local Variables: ;; indent-tabs-mode: nil ;; End: ;;; earl-init.el ends here #+end_src In order to get help in understanding the code block above in a buffer showing the original [[info:org#Top][Org]] source file, type {{{kbd(C-c C-c)}}} after moving point (or cursor) to one of the items of the list: 1. src_emacs-lisp{(describe-variable #'load-prefer-newer t)} 2. src_emacs-lisp{(apropos-library "no-littering")} 3. src_emacs-lisp{(find-function #'hack-local-variables)} to execute the code between the curly braces for access to help. This shows that *Emacs is a self-documenting editor.* * [[info:emacs#Init File][Init File (info)]] header :PROPERTIES: :CUSTOM_ID: sec:init-file-header :END: The =user-init-file= header requires =cl-lib= and customizes Emacs variables. It consists of three parts in listing [[lst:1st-custom-set-variables-call]], [[lst:2nd-custom-set-variables-call]], and [[lst:3rd-custom-set-variables-call]] in order to limit the length of the listings for exporting to LaTeX. The [[info:elisp#Quoting][quoting (info)]] and the [[info:elisp#Backquote][backquote (info)]] pages explain how to understand the reader macros ~'~ (quote), ~`~ (backquote), ~,~ (substitute) and ~@,~ (splice) in the ~custom-set-variables~ function calls in listing [[lst:1st-custom-set-variables-call]], [[lst:2nd-custom-set-variables-call]], and [[lst:3rd-custom-set-variables-call]]. A tutorial of how to use those reader macros is the [[https://mullikine.github.io/posts/macro-tutorial/][didactic emacs-lisp macro example]]. The [[info:emacs#Init File][init file (info)]] does not load the ~custom-file~ as [[info:emacs#Saving Customizations][saving customizations (info)]] recommends because of the ~custom-set-variables~ function calls. #+caption[Customize the first set of Emacs variables]: #+caption: Customize the first set of Emacs variables. #+name: lst:1st-custom-set-variables-call #+begin_src emacs-lisp ;;; init.el --- user init file -*- lexical-binding: t -*- ;;; Commentary: ;;; Code: (require 'cl-lib) (custom-set-variables '(after-save-hook #'executable-make-buffer-file-executable-if-script-p) '(column-number-mode t) '(cursor-type 'box) `(custom-file ,(locate-user-emacs-file "custom.el")) '(epg-pinentry-mode 'loopback) '(global-hl-line-mode t) '(global-hl-line-sticky-flag t) '(indent-tabs-mode nil) '(inhibit-startup-buffer-menu t) '(inhibit-startup-screen t) '(initial-buffer-choice t) '(initial-scratch-message "") `(insert-directory-program ,(or (executable-find "gls") (executable-find "ls"))) '(kill-ring-max 300) '(package-archives '(("gnu" . "https://elpa.gnu.org/packages/") ("nongnu" . "https://elpa.nongnu.org/nongnu/") ("melpa" . "https://melpa.org/packages/"))) ;; Pin those packages to GNU ELPA to get the info documentation. '(package-pinned-packages '((consult . "gnu") (marginalia . "gnu") (vertico . "gnu")))) #+end_src #+caption[Customize the second set of Emacs variables]: #+caption: Customize the second set of Emacs variables. #+name: lst:2nd-custom-set-variables-call #+begin_src emacs-lisp (custom-set-variables `(package-selected-packages `(,@(when (version< emacs-version "28.0") '(org ; plain text thought organizer python)) ; mode to edit Python code anaconda-mode ; strangles python-mode applescript-mode ; mode to edit AppleScript code async ; asynchroneous processing auctex ; Aalborg University Center TeX blacken ; Black Python code formatter client citar ; bibliography handling citeproc ; bibliography handling company ; complete anything company-anaconda ; complete anything in anaconda-mode consult ; consult completing-read eglot ; Emacs polyGLOT LSP client electric-operator ; automatic spacing around operators elfeed ; web feed reader embark ; act on any buffer selection emms ; Emacs Multi-Media System htmlize ; convert buffer contents to HTML iedit ; simultaneous multi-entity editing keycast ; show current command with binding magit ; Git Text-based User Interface marginalia ; minibuffer margin notes markdown-mode ; markdown text mode no-littering ; keep `user-emacs-directory' clean nov ; EPUB reader orderless ; Emacs completion style pdf-tools ; interactive docview replacement pdf-view-restore ; add view history to pdf-tools pyenv-mode ; Python environment selector quelpa ; install Emacs packages from source rainbow-mode ; set background color to color string sly ; Sylvester the Cat's Common Lisp IDE smartparens ; smart editing of character pairs toml-mode ; Tom's Obvious Minimal Language mode undo-tree ; more advanced yet simpler undo system vertico ; VERTical Interactive Completion wgrep ; open a writable grep buffer wordnut ; WordNet lexical database writegood-mode ; bullshit and weasel-word detector ws-butler ; remove trailing whitespace xr ; undo rx to grok regular expressions yasnippet))) ; code or text template expansion #+end_src #+caption[Customize the third set of Emacs variables]: #+caption: Customize the third set of Emacs variables. #+name: lst:3rd-custom-set-variables-call #+begin_src emacs-lisp (custom-set-variables '(recentf-mode t) '(save-place-mode t) '(scroll-bar-mode nil) '(tab-always-indent 'complete) '(tab-width 8) '(tool-bar-mode nil) '(url-cookie-trusted-urls nil) '(url-cookie-untrusted-urls '(".*")) '(use-dialog-box nil) '(use-short-answer t) '(view-read-only t)) (when (eq system-type 'darwin) (custom-set-variables '(ns-alternate-modifier nil) '(ns-command-modifier 'meta) '(ns-right-command-modifier 'super))) (when (eq window-system 'ns) (add-to-list 'initial-frame-alist '(height . 51)) (add-to-list 'initial-frame-alist '(width . 180))) #+end_src ** [[info:emacs#Faces][Text faces or look (info)]] :PROPERTIES: :CUSTOM_ID: sec:text-faces-or-look :END: Section [[#sec:text-faces-or-styles][text faces or styles (info)]] tells that this setup does not use theming. However, in order to improve visibility, it relies on: 1. Tweaking faces in memory after loading as in listing [[lst:tweak-faces-faces-after]]. 2. Shadowing the definition of faces before loading as in listing [[lst:tweak-org-faces-before]] and [[lst:tweak-sh-script-faces-before]]. The last item in the page on [[https://orgmode.org/worg/org-contrib/babel/examples/fontify-src-code-blocks.html#org5c4406f][fontifying Org mode source code blocks]] describes this method. Section [[#sec:text-faces-or-styles][text faces or styles (info)]] also defines the function src_emacs-lisp{(my-invert-default-face)} to toggle between a dark and a light background. #+caption[Improve the visibility of faces in =faces.el=]: #+caption: Improve the visibility of faces in =faces.el=. #+name: lst:tweak-faces-faces-after #+begin_src emacs-lisp (defun tweak-region-face-background-color () (when (featurep 'gtk) (set-face-attribute 'region nil :background (cdr (assoc (face-attribute 'default :background) '(("white" . "LightGoldenrod2") ("black" . "blue3"))))))) (tweak-region-face-background-color) #+end_src #+caption[Improve the visibility of faces in =org-faces.el=]: #+caption: Improve the visibility of faces in =org-faces.el=. #+name: lst:tweak-org-faces-before #+begin_src emacs-lisp ;; Shadow the definition in org-faces.el: (defface org-block ;; https://emacs.stackexchange.com/questions/9600/ ;; how-can-i-override-a-pre-defined-face-for-light-and-dark-backgrounds `((((background dark)) :inherit (fixed-pitch) ,@(and (>= emacs-major-version 27) '(:extend t)) :background "#444444") (t :inherit (fixed-pitch) ,@(and (>= emacs-major-version 27) '(:extend t)) :background "#FFFFD0")) "My face used for text inside various blocks. It is always used for source blocks. You can refine what face should be used depending on the source block language by setting, `org-src-block-faces', which takes precedence. When `org-fontify-quote-and-verse-blocks' is not nil, text inside verse and quote blocks are fontified using the `org-verse' and `org-quote' faces, which inherit from `org-block'.") #+end_src #+caption[Improve the visibility of faces in =sh-script.el=]: #+caption: Improve the visibility of faces in =sh-script.el=. #+name: lst:tweak-sh-script-faces-before #+begin_src emacs-lisp ;; Shadow the definition in sh-script.el: (defface sh-heredoc '((((class color) (background dark)) (:foreground "yellow")) (((class color) (background light)) (:foreground "magenta")) (t (:weight bold))) "My face to show a here-document.") #+end_src ** [[info:emacs#Dired][Dired: directory editor as file manager (info)]] :PROPERTIES: :CUSTOM_ID: sec:file-manager :END: [[info:emacs#Dired][Dired (info)]] and the [[https://github.com/ranger/ranger#readme][ranger]] file manager offer similar capabilities for copying, deleting, opening, renaming, and viewing files and directories, but the integration of [[info:emacs#Dired][dired (info)]] in Emacs is obviously much better than the integration of [[https://github.com/ranger/ranger#readme][ranger]] in Emacs. For instance, this setup allows to insert an =org-mode= link to an poorly identified file containing a specific image into an =org-mode= buffer by means of the facilities of [[info:emacs#Dired][dired (info)]] as follows: 1. Type {{{kbd(C-x d)}}} to open the directory containing the pooly identified file with the specific image in a =dired-mode= buffer. 2. Start searching for the specific image by navigating to the name of any image file. 3. Type {{{kbd(v)}}} to switch to view the file in an =image-mode= buffer. 4. In the =image-mode= buffer, continue searching for the specific image by typing: - {{{kbd(n)}}} to view the next image in the =dired-mode= buffer, - {{{kbd(p)}}} to view the previous image in the =dired-mode= buffer, and - {{{kbd(q)}}} to quit the =image-mode= buffer and to go back to the =dired-mode= buffer. 5. After finding the specific image, use {{{kbd(C-c l)}}} in the =image-mode= buffer or the =dired-mode= buffer to store the =org-link=. 6. Switch to the =org-mode= buffer and use {{{kbd(C-c C-l)}}} to insert the =org-link= into the buffer. Listing [[lst:customize-dired]] makes the directory editor sort entries alphabetically after grouping the directories before grouping the files by extension. #+caption[Customize =dired=]: #+caption: Customize =dired=. #+name: lst:customize-dired #+begin_src emacs-lisp (with-eval-after-load 'dired (custom-set-variables '(dired-dwim-target t) ;; | switch | action | ;; |--------+----------------------------------------| ;; | -a | also list hidden entries | ;; | -l | use a long listing format | ;; | -X | sort alphabetically by entry extension | ;; | -G | skip long listing format group names | ;; | -1 | list one entry per line | '(dired-listing-switches "-alGX1 --group-directories-first") '(dired-recursive-copies 'always) '(dired-recursive-deletes 'always))) (with-eval-after-load 'files (custom-set-variables ;; Ensure the use of `GNU-ls' from `coreutils' on darwin. '(insert-directory-program (or (executable-find "gls") (executable-find "ls"))))) (with-eval-after-load 'wdired (custom-set-variables '(wdired-allow-to-change-permissions t))) #+end_src Listing [[lst:extra-dired-key-bindings]] adds new key-bindings to =dired-mode-map= to: 1. Open files with the [[https://en.wikipedia.org/wiki/Eww_(web_browser)][Emacs Web Wowser]] inside Emacs. 2. Let [[https://en.wikipedia.org/wiki/Rsync][rsync]] copy marked files outside Emacs to a local or remote directory. The link [[https://truongtx.me/tmtxt-dired-async.html][asynchoronous execution library for Emacs Dired]] is the original source for the idea of using [[https://en.wikipedia.org/wiki/Rsync][rsync]] and the blog articles [[https://oremacs.com/2016/02/24/dired-rsync/][using rsync in dired]] and [[https://vxlabs.com/2018/03/30/asynchronous-rsync-with-emacs-dired-and-tramp/][asynchronous rsync with Emacs, dired and tramp]] are vivid recommendations written by experienced Emacs users. #+caption[Extra =dired= key bindings]: #+caption: Extra =dired= key bindings. #+name: lst:extra-dired-key-bindings #+begin_src emacs-lisp (with-eval-after-load 'dired (define-key dired-mode-map (kbd "E") (defun my-dired-eww-find-file () "Visit dired file with eww." (interactive) (eww-open-file (dired-get-file-for-visit)))) ;; https://truongtx.me/tmtxt-dired-async.html (define-key dired-mode-map (kbd "Y") (defun my-dired-rsync (target) "Copy marked files with `rsync' to TARGET directory." (interactive (list (expand-file-name (read-file-name "Rsync to:" (dired-dwim-target-directory))))) ;; Store all marked files into the `files' list and intialize ;; the `rsync-command'. (let ((files (dired-get-marked-files nil current-prefix-arg)) (rsync-command "rsync -av --progress ")) ;; Add all marked files as arguments to the `rsync-command'. (dolist (file files) (setq rsync-command (concat rsync-command (if (string-match "^/ssh:\\(.*\\)$" file) (format " -e ssh %s" (match-string 1 file)) (shell-quote-argument file)) " "))) ;; Append the destination directory to the `rsync-command'. (setq rsync-command (concat rsync-command (if (string-match "^/ssh:\\(.*\\)$" target) (format " -e ssh %s" (match-string 1 target)) (shell-quote-argument target)))) ;; Run the async shell command. (async-shell-command rsync-command) ;; Finally, switch to that window. (other-window 1))))) #+end_src * [[info:emacs#Package Installation][Install the selected packages (info)]] :PROPERTIES: :CUSTOM_ID: sec:install-selected-packages :END: [[info:emacs#Package Installation][Emacs installs packages]] from archives on the internet. This setup uses three archives: 1. The [[https://elpa.gnu.org/][GNU Emacs Lisp Package Archive]] 2. The [[https://elpa.nongnu.org/][NonGNU Emacs Lisp Package Archive]]. 3. The [[https://melpa.org/#/][Milkypostman’s Emacs Lisp Package Archive (MELPA)]]. In addition, the [[https://github.com/quelpa/quelpa][quelpa]] tool allows to fetch code from any source and build a package on your computer before installation. The code in listing [[lst:install-selected-packages]] assumes that the package system is in a *virgin* state if the package [[https://github.com/emacscollective/no-littering][no-littering]] is not present: 1. It installs and loads [[https://github.com/emacscollective/no-littering][no-littering]] after ensuring refreshing of the contents of available packages. 2. It ensures installation of [[https://github.com/quelpa/quelpa][quelpa]] before ensuring installation of [[https://www.reddit.com/r/emacs/comments/l6rcqh/undotree_repositorys_new_home_gitlab/][undo-tree]]. 3. It calls src_emacs-lisp{(package-install-selected-packages)} to check the installation status of all packages in src_emacs-lisp{package-selected-packages} and to install the missing packages after the user has agreed to its prompt. In case of normal Emacs usage, src_emacs-lisp{(package-list-packages)} refreshes the contents of packages and allows to update packages to the latest version. #+caption[Install the selected packages]: #+caption: Install the selected packages. #+name: lst:install-selected-packages #+begin_src emacs-lisp (unless (require 'no-littering nil 'noerror) (package-refresh-contents) (package-install 'no-littering) (require 'no-littering)) (unless (package-installed-p 'quelpa) (package-install 'quelpa)) (unless (package-installed-p 'undo-tree) ;; Neither GNU ELPA, nor MELPA have the latest version. (quelpa '(undo-tree :repo "tsc25/undo-tree" :fetcher gitlab))) (unless noninteractive (package-install-selected-packages)) #+end_src * [[info:dir#Top][Info documentation]] :PROPERTIES: :CUSTOM_ID: sec:info-documentation :END: Listing [[lst:configure-info]] fixes what looks like a bug in Emacs-28.0.91 and adds a path in my home directory to the places where =info= looks for files. #+caption[Configure =info=]: #+caption: Configure =info=. #+name: lst:configure-info #+begin_src emacs-lisp (with-eval-after-load 'info (unless (version< emacs-version "28.0") ;; Why is this necessary after `package-activate-1'? (dolist (item package-alist) (let ((pkg-dir (package-desc-dir (cadr item)))) (when (file-exists-p (expand-file-name "dir" pkg-dir)) (cl-pushnew pkg-dir Info-directory-list :test #'equal))))) ;; Emacs should find my "python.info" file. (add-to-list 'Info-directory-list (expand-file-name "~/.local/share/info"))) #+end_src * [[info:emacs#Key Bindings][Key bindings (info)]] :PROPERTIES: :CUSTOM_ID: sec:key-bindings :END: ** [[info:emacs#Disabling][Disabling Commands (info)]] :PROPERTIES: :CUSTOM_ID: sec:enable-disabled-commands :END: Execute src_emacs-lisp{(find-library "novice")} to see how Emacs prevents new users from shooting themselves in the feet. Listing [[lst:configure-disabled-command-function]] enables [[https://www.emacswiki.org/emacs/DisabledCommands][disabled commands on the fly]]. #+caption[Configure the =disabled-command-function=]: #+caption: Configure the =disabled-command-function=. #+name: lst:configure-disabled-command-function #+begin_src emacs-lisp (setq disabled-command-function (defun my-enable-this-command (&rest _args) "Called when a disabled command is executed. Enable it and re-execute it." (put this-command 'disabled nil) (message "You typed %s. %s was disabled until now." (key-description (this-command-keys)) this-command) (sit-for 0) (call-interactively this-command))) #+end_src * [[info:emacs#Emacs Server][Using Emacs as a server (info)]] :PROPERTIES: :CUSTOM_ID: sec:using-emacs-server :END: Emacs can act as a server that listens to a socket to share its state (for instance buffers and command history) with other programs by means of a shell command =emacsclient=. Section [[#sec:latexmk-save-compile-display-loop]] and [[#sec:qutebrowser-userscript]] show how to use ~emacsclient~ to: 1. Install an asynchronous (or background) loop of saving a LaTeX file, compiling it, and redisplaying the output in Emacs. 2. Make [[https://qutebrowser.org][qutebrowser]] send html links with document titles to Emacs. The code in listing [[lst:start-emacs-server]] starts the Emacs server. #+caption[Start the Emacs server]: #+caption: Start the Emacs server. #+name: lst:start-emacs-server #+begin_src emacs-lisp (when window-system (unless (or noninteractive (daemonp)) (add-hook 'after-init-hook #'server-start))) #+end_src ** Latexmk save-compile-display loop :PROPERTIES: :CUSTOM_ID: sec:latexmk-save-compile-display-loop :END: The =latexmk= resource file in the next source code block shows how to use =emacsclient= to (re)display the PDF file in Emacs after each succesful (re)compilation on condition that the settings of the ~compile-command~ local variable in section are compatible. The local variable ~compile-command~ in the [[#sec:local-variables][local variables]] section (only visible in =org= files, but not in =html= and =pdf= files) shows how to use the =latexmkrc= file. #+attr_latex: :options breaklines #+caption[Tangle the Latexmk resource file]: #+caption: Tangle the Latexmk resource file. #+name: lst:latexmkrc #+begin_src perl :tangle latexmkrc :comments none # pdf previewer and update pdf previewer $pdf_previewer = "emacsclient -e '(find-file-other-window %S)'"; $pdf_update_method = 4; # 4 runs a command to force the update $pdf_update_command = "emacsclient -e '(with-current-buffer (find-buffer-visiting %S) (pdf-view-revert-buffer nil t))'"; # see for instance glossary.latexmkrc add_cus_dep( 'acn', 'acr', 0, 'makeglossaries' ); add_cus_dep( 'glo', 'gls', 0, 'makeglossaries' ); $clean_ext .= " acr acn alg bbl glo gls glg ist lol run.xml"; sub makeglossaries { my ($name, $path) = fileparse( $$Psource ); return system "makeglossaries -d '$path' '$name'"; } # Emacs looks for "Local variables:" after the last "?\n?\f". # Local Variables: # mode: perl # End: #+end_src ** [[https://qutebrowser.org/doc/userscripts.html][Qutebrowser userscript]] :PROPERTIES: :CUSTOM_ID: sec:qutebrowser-userscript :END: The next block contains an userscript that sends a [[info:org#The store-link protocol][store-link org-protocol]] message with the url and the title from [[https://qutebrowser.org][qutebrowser]] to =emacsclient=. The function =urlencode= translates the url and the title for the message. The [[info:python#Examples<22>][Python urllib examples]] show how to use =urlencode=. The final =execvp= call deals with a [[https://qutebrowser.org][qutebrowser]] userscript requirement: the =emacsclient= process must get the PID of the userscript that must kill itself after the take-over. Termination of the =emacsclient= process hands control back to [[https://qutebrowser.org][qutebrowser]]. On a [[https://en.wikipedia.org/wiki/POSIX][POSIX]] system, you can run the userscript from [[https://qutebrowser.org][qutebrowser]] or from a terminal to see whether it works. In case you try to run it from Emacs, Emacs may hang or die. #+caption[Tangle a qutebrowser userscript]: #+caption: Tangle a qutebrowser userscript. #+header: :comments none #+header: :tangle-mode (identity #o755) #+name: lst:qutebrowser-userscript #+begin_src python :noeval :tangle org-store-link #!/usr/bin/env python from urllib.parse import urlencode from os import environ, execvp url = environ.get("QUTE_URL", "https://orgmode.org") title = environ.get("QUTE_TITLE", "Org Mode") parameters = urlencode({"url": url, "title": title}) print(payload := f"org-protocol://store-link?{parameters}") execvp("emacsclient", ("-n", payload)) #+end_src ** TODO Look into: org-protocol handling with other browser on Darwin 1. [[http://rwx.io/posts/osx-uri-protocol-handler/][Patrick Goddi: macOS URI protocol handler]] and his [[https://github.com/fooqri/uri-handler][URI-Handler]]. 2. [[https://www.hammerspoon.org/][Hammerspoon]] 3. [[https://vritser.github.io/posts/capture-anywhere/][Emacs Capture Anywhere]] * Completion :PROPERTIES: :CUSTOM_ID: sec:completion :END: [[info:vertico#Top][Vertico (info)]] provides a performant and minimalistic vertical completion UI based on the default completion system and behaves therefore correctly under all circumstances. [[https://cestlaz.github.io/post/using-emacs-80-vertico/][Using Vertico, Marginalia, Consult, and Embark]] links to a video demonstration. Vertico integrates well with fully supported complementary packages to enrich the completion UI: 1. [[info:orderless#Top][Orderless (info)]] for an advanced completion style, 2. [[info:embark#Top][Embark (info)]] for minibuffer actions with context menus, 3. [[info:marginalia#Top][Marginalia (info)]] for rich annotations in the minibuffer, and 4. [[info:consult#Top][Consult (info)]] for useful search and navigation commands, where the order is that of [[https://github.com/bdarcus/citar#installation][enhancing citar's experience]] and the configuration steps below. Finally, [[https://company-mode.github.io/][company: a modular complete-anything framework for Emacs]] provides completion in any buffer and [[#sec:minibuffer-history-completion][minibuffer-history-completion]] provides completion on previous input in the minibuffer. ** [[info:vertico#Top][Vertico (info)]] :PROPERTIES: :CUSTOM_ID: sec:vertico-configuration :END: Listing [[lst:enable-vertico-mode]] configures and enables =savehist-mode= and enables =vertico-mode=. The documentation src_emacs-lisp{(describe-function 'savehist-mode)} why it is best to turn on =savehist-mode= in the Emacs init file. #+caption[Enable =savehist-mode= and =vertico-mode=]: #+caption: Enable =savehist-mode= and =vertico-mode=. #+name: lst:enable-vertico-mode #+begin_src emacs-lisp (unless noninteractive (custom-set-variables '(history-delete-duplicates t) '(history-length 500) '(savehist-additional-variables '(eww-history kill-ring regexp-search-string search-ring search-string))) (savehist-mode +1) (when (fboundp 'vertico-mode) (vertico-mode +1)) (with-eval-after-load 'vertico (define-key vertico-map (kbd "RET") #'vertico-directory-enter) (define-key vertico-map (kbd "DEL") #'vertico-directory-delete-char) (define-key vertico-map (kbd "M-DEL") #'vertico-directory-delete-word))) #+end_src #+attr_latex: :booktabs yes :float table #+caption[Vertico key map bindings]: #+caption: Vertico key map bindings. #+name: tab:vertico-keymap-bindings |---------------------------------+---------------------+------------------------------------| | command | keys | remap | |---------------------------------+---------------------+------------------------------------| | =vertico-directory-delete-char= | {{{kbd(DEL)}}} | | | =vertico-directory-delete-word= | {{{kbd(M-DEL)}}} | | | =vertico-directory-enter= | {{{kbd(RET)}}} | | | =vertico-exit= | {{{kbd(C-j)}}} | =exit-minibuffer= | | =vertico-exit-input= | {{{kbd(C-RET)}}} | | | =vertico-first= | {{{kbd(M-<)}}} | =beginning-of-buffer= | | =vertico-first= | {{{kbd(M-<)}}} | =minibuffer-beginning-of-buffer= | | =vertico-insert= | {{{kbd(TAB)}}} | | | =vertico-last= | {{{kbd(M->)}}} | =end-of-buffer= | | =vertico-next-group= | {{{kbd(C-)}}} | =forward-paragraph= | | =vertico-next= | {{{kbd()}}} | =next-line-or-history-element= | | =vertico-next= | {{{kbd(C-n)}}} | =next-line= | | =vertico-previous-group= | {{{kbd(C-)}}} | =backward-paragraph= | | =vertico-previous= | {{{kbd()}}} | =previous-line-or-history-element= | | =vertico-previous= | {{{kbd(C-p)}}} | =previous-line= | | =vertico-save= | {{{kbd(M-w)}}} | =kill-ring-save= | | =vertico-scroll-down= | {{{kbd(M-v)}}} | =scroll-down-command= | | =vertico-scroll-up= | {{{kbd(C-v)}}} | =scroll-up-command= | |---------------------------------+---------------------+------------------------------------| ** [[info:orderless#Top][Orderless (info)]] :PROPERTIES: :CUSTOM_ID: sec:orderless-configuration :END: Listing [[lst:configure-orderless]] enables =orderless=. #+caption[Configure =orderless=]: #+caption: Configure =orderless=. #+name: lst:configure-orderless #+begin_src emacs-lisp (unless noninteractive (when (fboundp 'orderless-filter) (custom-set-variables ;; https://github.com/purcell/emacs.d/issues/778 '(completion-styles '(basic completion-partial orderless)) '(completion-category-defaults nil) '(completion-category-overrides '((file (styles partial-completion))))) (add-hook 'minibuffer-setup-hook (defun my-on-minibuffer-setup-hook() (setq-default completion-styles '(substring orderless)))))) #+end_src ** [[info:embark#Top][Embark (info)]] :PROPERTIES: :CUSTOM_ID: sec:embark-configuration :END: Listing [[lst:configure-embark]] configures =embark= key bindings: type for instance {{{kbd(C-x C-h)}}} or {{{kbd(C-c C-h)}}} that the initialization src_emacs-lisp{(setq prefix-help-command #'embark-prefix-help-command)} enables minibuffer help after a prefix key. #+caption[Configure =embark=]: #+caption: Configure =embark=. #+name: lst:configure-embark #+begin_src emacs-lisp (unless noninteractive (when (cl-every #'fboundp '(embark-act embark-bindings embark-dwim)) (global-set-key (kbd "C-,") #'embark-act) (global-set-key (kbd "C-:") #'embark-dwim) (global-set-key (kbd "C-h B") #'embark-bindings) (setq prefix-help-command #'embark-prefix-help-command))) #+end_src ** [[info:marginalia#Top][Marginalia (info)]] :PROPERTIES: :CUSTOM_ID: sec:marginalia-configuration :END: Listing [[lst:enable-marginalia-mode]] enables =marginalia-mode=. #+caption[Enable =marginalia-mode=]: #+caption: Enable =marginalia-mode=. #+name: lst:enable-marginalia-mode #+begin_src emacs-lisp (unless noninteractive (when (fboundp 'marginalia-mode) (marginalia-mode +1))) #+end_src ** [[info:consult#Top][Consult (info)]] :PROPERTIES: :CUSTOM_ID: sec:consult-configuration :END: Listing [[lst:configure-consult]] configures =consult=. #+attr_latex: :booktabs yes :float table #+caption[Configuration specific key bindings]: #+caption: Configuration specific key-bindings. #+name: tab:configuration-specific-key-bindings |-------------------------------+---------------------+------------------------| | command | keys | key map | |-------------------------------+---------------------+------------------------| | =consult-apropos= | {{{kbd( a)}}} | =global-map= | | =consult-bookmark= | {{{kbd(C-x r b)}}} | =ctl-x-keymap= | | =consult-buffer-other-frame= | {{{kbd(C-x 5 b)}}} | =ctl-x-keymap= | | =consult-buffer-other-window= | {{{kbd(C-x 4 b)}}} | =ctl-x-keymap= | | =consult-buffer= | {{{kbd(C-x b)}}} | =ctl-x-keymap= | | =consult-compile-error= | {{{kbd(M-g e)}}} | =goto-map= | | =consult-complex-command= | {{{kbd(C-x M-:)}}} | =ctl-x-keymap= | | =consult-find= | {{{kbd(M-s f)}}} | =search-map= | | =consult-focus-lines= | {{{kbd(M-s u)}}} | =search-map= | | =consult-git-grep= | {{{kbd(M-s g)}}} | =search-map= | | =consult-global-mark= | {{{kbd(M-g k)}}} | =goto-map= | | =consult-goto-line= | {{{kbd(M-g M-g)}}} | =goto-map= | | =consult-goto-line= | {{{kbd(M-g g)}}} | =goto-map= | | =consult-history= | {{{kbd(C-c h)}}} | =global-map= | | =consult-imenu-project= | {{{kbd(M-g i)}}} | =goto-map= | | =consult-keep-lines= | {{{kbd(M-s k)}}} | =search-map= | | =consult-line= | {{{kbd(M-s l)}}} | =search-map= | | =consult-mark= | {{{kbd(M-g m)}}} | =goto-map= | | =consult-mode-command= | {{{kbd(C-c m)}}} | =global-map= | | =consult-multi-occur= | {{{kbd(M-s m)}}} | =search-map= | | =consult-outline= | {{{kbd(M-g o)}}} | =goto-map= | | =consult-register= | {{{kbd(C-x r x)}}} | =ctl-x-keymap= | | =consult-yank-pop= | {{{kbd(M-y)}}} | =global-map= | |-------------------------------+---------------------+------------------------| | =elfeed= | {{{kbd(C-x w)}}} | =global-map= | | =embark-act= | {{{kbd(C-\,)}}} | =global-map= | | =embark-bindings= | {{{kbd(C-h B)}}} | =global-map= | | =embark-dwim= | {{{kbd(C-:)}}} | =global-map= | | =iedit-mode= | {{{kbd(C-;)}}} | =global-map= | | =minibuffer-complete-history= | {{{kbd(C-)}}} | =minibuffer-local-map= | | =narrow-or-widen-dwim= | {{{kbd(C-x C-n)}}} | =ctl-x-keymap= | | =org-agenda= | {{{kbd(C-c a)}}} | =global-map= | | =org-capture= | {{{kbd(C-c c)}}} | =global-map= | | =org-cite= | {{{kbd(C-c b)}}} | =org-mode-map= | | =org-insert-link-global= | {{{kbd(C-c C-l)}}} | =global-map= | | =org-narrow-to-table= | {{{kbd(C-x n t)}}} | =ctl-x-keymap= | | =org-store-link= | {{{kbd(C-c l)}}} | =global-map= | |-------------------------------+---------------------+------------------------| #+caption[Configure =consult=]: #+caption: Configure =consult=. #+name: lst:configure-consult #+begin_src emacs-lisp (unless noninteractive (when (fboundp 'consult-apropos) (custom-set-variables '(consult-project-root-function #'vc-root-dir)) ;; C-c bindings (mode-specific-map) (global-set-key (kbd "C-c h") #'consult-history) (global-set-key (kbd "C-c m") #'consult-mode-command) ;; C-x bindings (ctl-x-map) (define-key ctl-x-map (kbd "M-:") #'consult-complex-command) (define-key ctl-x-map (kbd "b") #'consult-buffer) (define-key ctl-x-map (kbd "4 b") #'consult-buffer-other-window) (define-key ctl-x-map (kbd "5 b") #'consult-buffer-other-frame) (define-key ctl-x-map (kbd "r x") #'consult-register) (define-key ctl-x-map (kbd "r b") #'consult-bookmark) ;; M-g bindings (goto-map) (define-key goto-map (kbd "g") #'consult-goto-line) (define-key goto-map (kbd "M-g") #'consult-goto-line) (define-key goto-map (kbd "o") #'consult-outline) (define-key goto-map (kbd "m") #'consult-mark) (define-key goto-map (kbd "k") #'consult-global-mark) (define-key goto-map (kbd "i") #'consult-imenu-project) (define-key goto-map (kbd "e") #'consult-compile-error) ;; M-s bindings (search-map) (define-key search-map (kbd "g") #'consult-git-grep) (define-key search-map (kbd "f") #'consult-find) (define-key search-map (kbd "k") #'consult-keep-lines) (define-key search-map (kbd "l") #'consult-line) (define-key search-map (kbd "m") #'consult-multi-occur) (define-key search-map (kbd "u") #'consult-focus-lines) ;; Other bindings (global-set-key (kbd "M-y") #'consult-yank-pop) (global-set-key (kbd " a") #'consult-apropos) ;; Tweak functions (advice-add 'completing-read-multiple :override #'consult-completing-read-multiple) (fset 'multi-occur #'consult-multi-occur))) #+end_src ** [[https://company-mode.github.io/][Company: a modular complete anything framework for Emacs]] :PROPERTIES: :CUSTOM_ID: sec:company-configuration :END: Listing [[lst:configure-company]] configures =company=. #+caption[Configure =company=]: #+caption: Configure =company=. #+name: lst:configure-company #+begin_src emacs-lisp (unless noninteractive (when (fboundp 'company-mode) (custom-set-variables ;; https://github.com/purcell/emacs.d/issues/778 '(company-transformers '(company-sort-by-occurrence))) (dolist (hook '(LaTeX-mode-hook org-mode-hook emacs-lisp-mode-hook lisp-interaction-mode-hook lisp-mode-hook python-mode-hook ielm-mode-hook sly-mrepl-mode-hook)) (add-hook hook #'company-mode)))) #+end_src ** [[https://lists.gnu.org/archive/html/emacs-devel/2021-12/msg00802.html][Minibuffer history completion]] :PROPERTIES: :CUSTOM_ID: sec:minibuffer-history-completion :END: See [[https://lists.gnu.org/archive/html/emacs-devel/2021-12/msg00802.html][Juri Linkov (Emacs Developer mailing list)]] for how to allow completion on previous input in the minibuffer. Listing [[lst:enable-minibuffer-history-completion]] enables minibuffer history completion. #+caption[Enable =minibuffer-history-completion=]: #+caption: Enable =minibuffer-history-completion=. #+name: lst:enable-minibuffer-history-completion #+begin_src emacs-lisp (defun minibuffer-setup-history-completions () (unless (or minibuffer-completion-table minibuffer-completion-predicate) (setq-local minibuffer-completion-table (symbol-value minibuffer-history-variable)))) (add-hook 'minibuffer-setup-hook 'minibuffer-setup-history-completions) ;; Stolen from Emacs-28.1 for Emacs-27.2: (unless (fboundp 'minibuffer--completion-prompt-end) (defun minibuffer--completion-prompt-end () (let ((end (minibuffer-prompt-end))) (if (< (point) end) (user-error "Can't complete in prompt") end)))) ;; Adapted from ‘minibuffer-complete’: (defun minibuffer-complete-history () "Allow minibuffer completion on previous input." (interactive) (completion-in-region (minibuffer--completion-prompt-end) (point-max) (symbol-value minibuffer-history-variable) nil)) (define-key minibuffer-local-map (kbd "C-") #'minibuffer-complete-history) #+end_src * Reading :PROPERTIES: :CUSTOM_ID: sec:reading :END: ** Reading EPUB files :PROPERTIES: :CUSTOM_ID: sec:reading-epub-files :END: Listing [[lst:enable-nov-mode]] enables =nov-mode=. #+caption[Enable =nov-mode=]: #+caption: Enable =nov-mode=. #+name: lst:enable-nov-mode #+begin_src emacs-lisp (when (fboundp 'nov-mode) (add-to-list 'auto-mode-alist `(,(rx ".epub" eos) . nov-mode))) #+end_src ** Reading PDF files :PROPERTIES: :CUSTOM_ID: sec:reading-pdf-files :END: The [[https://github.com/vedang/pdf-tools][pdf-tools]] package exploits the [[https://github.com/freedesktop/poppler][poppler]] library to render and to let you annotate [[https://en.wikipedia.org/wiki/PDF][PDF]] files. It also exploits the [[https://wiki.contextgarden.net/SyncTeX][SyncTeX]] library to link anchors in [[https://en.wikipedia.org/wiki/PDF][PDF]] files produced with LaTeX to the original LaTeX sources. In order to use [[https://github.com/vedang/pdf-tools][pdf-tools]], you have to type =M-x pdf-tools-install= after installation of [[https://github.com/vedang/pdf-tools][pdf-tools]] from [[https://melpa.org/][MELPA]] or after each update of [[https://github.com/freedesktop/poppler][poppler]] to build or rebuild the =epdfinfo= executable that serves the [[https://en.wikipedia.org/wiki/PDF][PDF]] files to Emacs. #+caption[Enable =pdf-tools=]: #+caption: Enable =pdf-tools=. #+name: lst:enable-pdf-tools #+begin_src emacs-lisp ;; `pdf-loader-install' is the lazy equivalent of `pdf-tools-install': ;; see the README file. (when (fboundp 'pdf-loader-install) (pdf-loader-install)) (with-eval-after-load 'pdf-view (custom-set-variables '(pdf-view-display-size 'fit-page)) (when (fboundp 'pdf-view-restore-mode) (add-hook 'pdf-view-mode-hook #'pdf-view-restore-mode))) #+end_src * Writing :PROPERTIES: :CUSTOM_ID: sec:writing :END: ** Writing LaTeX files :PROPERTIES: :CUSTOM_ID: sec:writing-latex-files :END: Loading =tex.el= immediately instead of lazily ensures proper initialization of [[https://en.wikipedia.org/wiki/AUCTeX][AUCTeX]]. For instance, the ~TeX-master~ safe local variable in the =tex.el= elisp library file has no autoload cookie. Without prior loading of =tex.el=, Emacs will complain that ~TeX-master~ is no safe local variable in case it reads a LaTeX file that sets ~TeX-master~. Listing [[lst:require-auctex]] initializes [[https://en.wikipedia.org/wiki/AUCTeX][AUCTeX]] properly. #+caption[Require =AUCTeX=]: #+caption: Require =AUCTeX=. #+name: lst:require-auctex #+begin_src emacs-lisp ;; Use `require' to make `TeX-master' a safe local variable. (when (require 'tex nil 'noerror) (custom-set-variables '(TeX-auto-save t) '(TeX-install-font-lock #'font-latex-setup) '(TeX-parse-self t))) #+end_src Although, the LaTeX =biblatex= is in use, listing [[lst:configure-bibtex]] configures the Emacs =bibtex= library for the LaTeX =BiBTeX= package to maintain backwards compatibility. #+caption[Configure =bibtex=]: #+caption: Configure =bibtex=. #+name: lst:configure-bibtex #+begin_src emacs-lisp (with-eval-after-load 'bibtex (custom-set-variables '(bibtex-dialect 'BibTeX))) #+end_src Listing [[lst:configure-font-latex]] disables font scaling of section titles. #+caption[Configure =font-latex=]: #+caption: Configure =font-latex=. #+name: lst:configure-font-latex #+begin_src emacs-lisp (with-eval-after-load 'font-latex (custom-set-variables '(font-latex-fontify-sectioning 1.0))) #+end_src Listing [[lst:configure-latex]] configures =latex= for a full featured =LaTeX-section-command=. #+caption[Configure =latex=]: #+caption: Configure =latex=. #+name: lst:configure-latex #+begin_src emacs-lisp (with-eval-after-load 'latex (custom-set-variables '(LaTeX-section-hook '(LaTeX-section-heading LaTeX-section-title LaTeX-section-toc LaTeX-section-section LaTeX-section-label)))) #+end_src Out of the box, [[https://en.wikipedia.org/wiki/AUCTeX][AUCTeX]] does not indent text between square brackets. The code in listing [[lst:configure-tex]] corrects this by advising to override ~TeX-brace-count-line~ with ~my-TeX-brace-count-line~. #+caption[Configure =TeX=]: #+caption: Configure =TeX=. #+name: lst:configure-tex #+begin_src emacs-lisp (with-eval-after-load 'tex (custom-set-variables ;; Disable `TeX-electric-math' to prevent collisions with `smartparens'. '(TeX-electric-math nil)) ;; https://emacs.stackexchange.com/questions/17396/ ;; indentation-in-square-brackets (defun my-TeX-brace-count-line () "Count number of open/closed braces." (save-excursion (let ((count 0) (limit (line-end-position)) char) (while (progn (skip-chars-forward "^{}[]\\\\" limit) (when (and (< (point) limit) (not (TeX-in-comment))) (setq char (char-after)) (forward-char) (cond ((eq char ?\{) (setq count (+ count TeX-brace-indent-level))) ((eq char ?\}) (setq count (- count TeX-brace-indent-level))) ((eq char ?\[) (setq count (+ count TeX-brace-indent-level))) ((eq char ?\]) (setq count (- count TeX-brace-indent-level))) ((eq char ?\\) (when (< (point) limit) (forward-char) t)))))) count))) (advice-add 'TeX-brace-count-line :override #'my-TeX-brace-count-line)) #+end_src *** TODO Improve the AUCTeX configuration slowly [[https://github.com/thisirs/dotemacs/blob/master/lisp/init-auctex.el][AUCTeX setup of an experienced user]] ** Writing Org files :PROPERTIES: :CUSTOM_ID: sec:writing-org-files :END: *** [[info:org#Activation][Org activation (info)]] :PROPERTIES: :CUSTOM_ID: sec:activate-org :END: #+caption[Activate =Org=]: #+caption: Activate =Org=. #+name: lst:activate-org #+begin_src emacs-lisp ;; Inspect: ;; function with "C-h f" ;; symbols with "C-h o" ;; variables with "C-h v" (global-set-key (kbd "C-c a") #'org-agenda) (global-set-key (kbd "C-c c") #'org-capture) (global-set-key (kbd "C-c l") #'org-store-link) (global-set-key (kbd "C-c C-l") #'org-insert-link-global) #+end_src *** Org customization :PROPERTIES: :CUSTOM_ID: sec:customize-org :END: The code in listing [[lst:customize-org-babel]], [[lst:customize-org]], and [[lst:customize-org-export]] does basic customization of [[https://orgmode.org/][Org mode]] variables. #+caption[Customize =org-babel=]: #+caption: Customize =org-babel=. #+name: lst:customize-org-babel #+begin_src emacs-lisp (with-eval-after-load 'ob-core (custom-set-variables '(org-confirm-babel-evaluate nil))) (with-eval-after-load 'ob-python (custom-set-variables '(org-babel-python-command "python -E"))) (with-eval-after-load 'ob-latex (custom-set-variables '(org-babel-latex-preamble (lambda (_) "\\documentclass[preview]{standalone}\n")) '(org-babel-latex-begin-env (lambda (_) "\\begin{document}\n")) '(org-babel-latex-end-env (lambda (_) "\\end{document}\n")))) (with-eval-after-load 'ob-lisp (with-eval-after-load 'sly (custom-set-variables '(org-babel-lisp-eval-fn #'sly-eval)))) #+end_src #+caption[Customize =Org=]: #+caption: Customize =Org=. #+name: lst:customize-org #+begin_src emacs-lisp (with-eval-after-load 'org (custom-set-variables '(org-babel-load-languages '((C . t) (calc . t) (dot . t) (emacs-lisp . t) (eshell . t) (fortran . t) (gnuplot . t) (latex . t) (lisp . t) (maxima . t) (org . t) (perl . t) (python . t) (shell . t))) '(org-export-backends '(ascii beamer html icalendar latex odt texinfo)) '(org-file-apps '((auto-mode . emacs) (directory . emacs) ("\\.mm\\'" . default) ("\\.x?html?\\'" . default) ("\\.pdf\\'" . emacs))) '(org-modules '(ol-bibtex ol-doi ol-eww ol-info org-id org-protocol org-tempo)) '(org-structure-template-alist '(("a" . "export ascii") ("c" . "center") ("C" . "comment") ("e" . "example") ("E" . "export") ("h" . "export html") ("l" . "export latex") ("q" . "quote") ("s" . "src") ("p" . "src python :session :async") ("v" . "verse"))))) #+end_src #+caption[Configure =org-mode-map=]: #+caption: Configure =org-mode-map=. #+name: lst:configure-org-mode-map #+begin_src emacs-lisp (with-eval-after-load 'org ;; From: "Nicolas Richard" ;; Date: Fri, 08 Mar 2013 16:23:02 +0100 [thread overview] ;; Message-ID: <87vc913oh5.fsf@yahoo.fr> (raw) (defun org-electric-dollar () "When called once, insert \\(\\) and leave point in between. When called twice, replace the previously inserted \\(\\) by one $." (interactive) (if (and (looking-at "\\\\)") (looking-back "\\\\(" (- (point) 2))) (progn (delete-char 2) (delete-char -2) (insert "$")) (insert "\\(\\)") (backward-char 2))) (define-key org-mode-map (kbd "$") #'org-electric-dollar) (define-key org-mode-map (kbd "M-q") #'org-fill-paragraph)) #+end_src #+caption[Customize =org-export=]: #+caption: Customize =org-export=. #+name: lst:customize-org-export #+begin_src emacs-lisp (with-eval-after-load 'ox-latex (custom-set-variables '(org-latex-compiler "lualatex") '(org-latex-hyperref-template "\\hypersetup{ pdfauthor={%a}, pdftitle={%t}, pdfkeywords={%k}, pdfsubject={%d}, pdfcreator={%c}, pdflang={%L}, citecolor=blue, colorlinks=true, filecolor=blue, hyperfootnotes=false, linkcolor=blue, unicode=true, urlcolor=blue, }\n") '(org-latex-listings 'minted) '(org-latex-minted-langs '((cc "c++") (cperl "perl") (diff "diff") (shell-script "bash") (org "text") (toml "toml"))) '(org-latex-minted-options '(("bgcolor" "LightGoldenrodYellow"))) `(org-latex-logfiles-extensions ',(cl-union '("lof" "lot") org-latex-logfiles-extensions :test #'equal)) '(org-latex-prefer-user-labels t) '(org-latex-subtitle-separate t))) #+end_src *** [[https://github.com/bdarcus/citar][Citar: citing bibliography]] with [[https://orgmode.org/][Org Mode]] :PROPERTIES: :CUSTOM_ID: sec:citing-bibliography :END: [[https://github.com/bdarcus/citar][Citar]] is a completing-read front-end to browse and act on BibTeX, BibLaTeX, as well as CSL JSON bibliographic data with LaTeX, markdown, and org-cite editing support. In combination with vertico, orderless, embark, marginalia, and consult, [[https://github.com/bdarcus/citar][Citar]] provides quick filtering and selecting of bibliographic entries from the minibuffer, as well as the option to run different commands on those selections. Listing [[lst:configure-oc-cite+citar]] configures =org-cite=, =citar=, and =org=. #+caption[Configure =org-cite= with =citar=]: #+caption: Configure =oc-cite= with =citar=. #+name: lst:configure-oc-cite+citar #+begin_src emacs-lisp (with-eval-after-load 'oc (require 'oc-biblatex) (require 'oc-csl) (custom-set-variables '(org-cite-export-processors '((latex biblatex) (t csl))) '(org-cite-global-bibliography '("~/VCS/research/refs.bib"))) (when (require 'citar nil 'noerror) (custom-set-variables '(org-cite-activate-processor 'citar) '(org-cite-follow-processor 'citar) '(org-cite-insert-processor 'citar)))) (with-eval-after-load 'org (when (require 'citar nil 'noerror) (custom-set-variables '(citar-bibliography '("~/VCS/research/refs.bib")) '(citar-file-extensions '("djvu" "pdf")) '(citar-library-paths '("~/VCS/research/papers/")))) (define-key org-mode-map (kbd "C-c b") #'org-cite-insert)) #+end_src *** TODO Compare bibtex and biblatex 1. [[https://www.economics.utoronto.ca/osborne/latex/BIBTEX.HTM][Using bibtex: a short guide]] 2. [[https://www.tug.org/texlive//devsrc/Master/texmf-dist/doc/latex/biblatex/biblatex.pdf][The biblatex package]] 3. [[https://github.com/yuchenlin/rebiber][Rebiber: A tool for normalizing bibtex with official info]] 4. [[https://github.com/josephwright/biblatex-phys][A biblatex implementation of the AIP and APS bibliography style]] *** [[info:org#Adding Hyperlink Types][Making Org hyperlink types (info)]] :PROPERTIES: :CUSTOM_ID: sec:making-org-hyperlink-types :END: Listing [[lst:customize-org-link]] configures =org-link= to use relative file path links. #+caption[Customize =org-link=]: #+caption: Customize =org-link=. #+name: lst:customize-org-link #+begin_src emacs-lisp (with-eval-after-load 'ol (custom-set-variables '(org-link-file-path-type 'relative))) #+end_src Listing [[lst:org-ref-like-org-link-types]] defines =org-link= types for backwards compatibility with [[https://github.com/jkitchin/org-ref][org-ref]]. Listing [[lst:define-org-pdfview-link-type]] uses ideas from the definition of =docview-org-link= and =doi-org-link= types to define an =pdfview-org-link= type for use with [[https://github.com/vedang/pdf-tools][pdf-tools]]. Finally, listing [[lst:emacs-lisp-setup-patch-ol-info]] patches the function =org-info-export= and the constant ~org-info-other-documents~, to export the =info-org-link= types in this document to =html= and LaTeX correctly. #+caption[Define =org-link= types for backwards compatibility with =org-ref=]: #+caption: Define =org-link= types for backwards compatibility with =org-ref=. #+name: lst:org-ref-like-org-link-types #+begin_src emacs-lisp (with-eval-after-load 'ol (org-link-set-parameters "ac*" :export (lambda (path _desc backend _info) (pcase backend (`latex (format "\\gls*{%s}" path)) (_ path)))) (org-link-set-parameters "cite" :export (lambda (path _desc backend _info) (pcase backend (`latex (format "\\cite{%s}" path)) (_ path)))) (org-link-set-parameters "eqref" :export (lambda (path _desc backend _info) (pcase backend (`latex (format "\\eqref{%s}" path)) (_ path)))) (org-link-set-parameters "hyperlink" :export (lambda (path desc backend _info) (pcase backend (`latex (format "\\hyperlink{%s}{%s}" path desc)) (_ path)))) (org-link-set-parameters "label" :export (lambda (path _desc backend _info) (pcase backend (`latex (format "\\label{%s}" path)) (_ path)))) (org-link-set-parameters "ref" :export (lambda (path _desc backend _info) (pcase backend (`latex (format "\\ref{%s}" path)) (_ path))))) #+end_src #+caption[Define an =org-link= type for =pdf-tools=]: #+caption: Define an =org-link= type for =pdf-tools=. #+name: lst:define-org-pdfview-link-type #+begin_src emacs-lisp (with-eval-after-load 'ol (autoload 'pdf-view-goto-page "pdf-view" nil t) (org-link-set-parameters "pdfview" :follow #'org-pdfview-open :export #'org-pdfview-export :store #'org-pdfview-store-link) (defun org-pdfview-export (link description backend _) "Export a \"pdfview\" type link." (let ((path (if (string-match "\\(.+\\)::.+" link) (match-string 1 link) link)) (desc (or description link))) (when (stringp path) (setq path (expand-file-name path)) (pcase backend (`html (format "%s" path desc)) (`latex (format "\\href{%s}{%s}" path desc)) (`ascii (format "%s (%s)" desc path)) (_ path))))) (defun org-pdfview-open (link _) "Open a \"pdfview\" type link." (string-match "\\(.*?\\)\\(?:::\\([0-9]+\\)\\)?$" link) (let ((path (match-string 1 link)) (page (and (match-beginning 2) (string-to-number (match-string 2 link))))) ;; Let Org mode open the file (in-emacs = 1) to ensure ;; org-link-frame-setup is respected. (org-open-file path 1) (when page (pdf-view-goto-page page)))) (defun org-pdfview-store-link () "Store a \"pdfview\" type link." (when (eq major-mode 'pdf-view-mode) ;; This buffer is in pdf-view-mode (let* ((path buffer-file-name) (page (pdf-view-current-page)) (link (concat "pdfview:" path "::" (number-to-string page)))) (org-link-store-props :type "pdftools" :link link :description path))))) #+end_src #+caption[Patch =ol-info=]: #+caption: Patch =ol-info=. #+name: lst:emacs-lisp-setup-patch-ol-info #+begin_src emacs-lisp :exports code :silent (with-eval-after-load 'ol-info (defun org-info-export (path desc format) "Export an info link. See `org-link-parameters' for details about PATH, DESC and FORMAT." (let* ((parts (split-string path "#\\|::")) (manual (car parts)) (node (or (nth 1 parts) "Top"))) (pcase format (`html (format "%s" (org-info-map-html-url manual) (org-info--expand-node-name node) (or desc path))) (`latex (format "\\href{%s\\#%s}{%s}" (org-info-map-html-url manual) (org-info--expand-node-name node) (or desc path))) (`texinfo (let ((title (or desc ""))) (format "@ref{%s,%s,,%s,}" node title manual))) (_ nil)))) (make-variable-buffer-local 'org-info-emacs-documents) (setq org-info-emacs-documents (delete "org" org-info-emacs-documents)) (make-variable-buffer-local 'org-info-other-documents) (setq org-info-other-documents (cl-union '(("consult" . "https://github.com/minad/consult") ("embark" . "https://github.com/oantolin/embark") ("marginalia" . "https://github.com/minad/marginalia") ("org" . "https://orgmode.org/org.html") ("orderless" . "https://github.com/oantolin/orderless") ("sly" . "https://joaotavora.github.io/sly/") ("vertico" . "https://github.com/minad/vertico")) org-info-other-documents :test #'equal))) #+end_src *** [[https://tecosaur.github.io/emacs-config/#translate-capital-keywords][Translate capital keywords (old) to lower case (new)]] :PROPERTIES: :CUSTOM_ID: sec:convert-upper-to-lower-case-keywords :END: #+caption[Convert upper to lower case keywords]: #+caption: Convert upper to lower case keywords. #+name: lst:convert-upper-to-lower-case-keywords #+begin_src emacs-lisp (with-eval-after-load 'org (defun org-syntax-convert-keyword-case-to-lower () "Convert all #+KEYWORDS to #+keywords." (interactive) (save-excursion (goto-char (point-min)) (let ((count 0) (case-fold-search nil)) (while (re-search-forward "^[ \t]*#\\+[A-Z_]+" nil t) (unless (s-matches-p "RESULTS" (match-string 0)) (replace-match (downcase (match-string 0)) t) (setq count (1+ count)))) (message "Replaced %d keywords" count))))) #+end_src *** [[https://lists.gnu.org/archive/html/emacs-orgmode/2016-07/msg00394.html][Evaluate specific source blocks at load-time]] :PROPERTIES: :CUSTOM_ID: sec:load-time-specific-source-block-evaluation :END: [[https://emacs.stackexchange.com/questions/12938/how-can-i-evaluate-elisp-in-an-orgmode-file-when-it-is-opened][How to do load time source block evaluation]] #+caption[Evaluate specific source blocks at load-time]: #+caption: Evaluate specific source blocks at load-time. #+name: lst:load-time-specific-source-block-evaluation #+begin_src emacs-lisp (defun my-org-eval-blocks-named (infix) "Evaluate all source blocks having INFIX in their name." (when (eq major-mode 'org-mode) (let ((blocks (org-element-map (org-element-parse-buffer 'greater-element nil) 'src-block (lambda (block) (let ((name (org-element-property :name block))) (when (and name (string-match-p infix name)) block)))))) (dolist (block blocks) (goto-char (org-element-property :begin block)) (org-babel-execute-src-block))))) ;; Emacs looks for "Local variables:" after the last "?\n?\f". (add-to-list 'safe-local-eval-forms '(apply 'my-org-eval-blocks-named '("emacs-lisp-setup"))) (add-to-list 'safe-local-eval-forms '(apply 'my-org-eval-blocks-named '("python-setup"))) #+end_src *** [[info:org#LaTeX header and sectioning][Easy LaTeX preamble editing]] :PROPERTIES: :CUSTOM_ID: sec:easy-latex-preamble-editing :END: There are at least two ways (new and old) to edit the LateX preamble =latex_header= and =latex-extra_header= export options easily in LaTeX source or export blocks. This [[info:org#Top][Org (info)]] file uses the new way, but keeps the old way for backwards compatibility. The new way -- exploiting an idea of [[https://www.matem.unam.mx/~omar/][Omar Antolin Camarena]] -- is to code new [[info:org#Editing Source Code][-modes]] allowing to edit in LaTeX mode and to export to LaTeX code with [[info:org#LaTeX specific export settings][correct LaTeX preamble export setting prefixes]]. Here, are links to three posts exposing his idea: 1. [[https://www.reddit.com/r/orgmode/comments/7u2n0h/tip_for_defining_latex_macros_for_use_in_both/][Export LaTeX macros to LaTeX and HTML/MathJax preambles (reddit)]], 2. [[https://www.reddit.com/r/orgmode/comments/5bi6ku/tip_for_exporting_javascript_source_block_to/][Export JavaScript source blocks to script tags in HTML (reddit)]], 3. [[https://emacs.stackexchange.com/questions/28301/export-javascript-source-block-to-script-tag-in-html-when-exporting-org-file-to][Export JavaScript source blocks to script tags in HTML (SX)]]. Listing [[lst:emacs-lisp-setup-latex-header]] implements this way by means of two new [[info:org#Editing Source Code][-modes]]: =latex-header= and =latex-extra-header=. #+caption[New =-modes= to edit the LaTeX preamble easily]: #+caption: Add =latex-header= and =latex-extra-header= language modes to edit #+caption: LaTeX preamble =latex_header= and =latex_extra_header= export options #+caption: easily. #+name: lst:emacs-lisp-setup-latex-header #+begin_src emacs-lisp :exports code :silent (with-eval-after-load 'org-src (defun prefix-all-lines (prefix body) (with-temp-buffer (insert body) (string-insert-rectangle (point-min) (point-max) prefix) (buffer-string))) (add-to-list 'org-src-lang-modes '("latex-header" . latex)) (defvar org-babel-default-header-args:latex-header '((:exports . "results") (:results . "raw"))) (defun org-babel-execute:latex-header (body _params) "Execute a block of LaTeX preamble lines with org-babel. This function is called by `org-babel-execute-src-block' and prefixes all lines with \"#+latex_header: \"." (prefix-all-lines "#+latex_header: " body)) (add-to-list 'org-src-lang-modes '("latex-extra-header" . latex)) (defvar org-babel-default-header-args:latex-extra-header '((:exports . "results") (:results . "raw"))) (defun org-babel-execute:latex-extra-header (body _params) "Execute a block of LaTeX preamble lines with org-babel. This function is called by `org-babel-execute-src-block' and prefixes all lines with \"#+latex_extra_header: \"." (prefix-all-lines "#+latex_extra_header: " body))) #+end_src The old way is to use a special export attribute as in the function =org-latex-header-blocks-filter= in [[https://git.sr.ht/~bzg/org-contrib/tree/master/item/lisp/ox-extra.el][ox-extra.el]]. Apparently, nobody is using this broken function (broken, since it relies on support only in org-mode before =2014-11-11=). Listing [[lst:org-latex-header-blocks-filter]] proposes a fix for =org-latex-header-blocks-filter=. #+caption[Convert marked LaTeX export blocks to LaTeX header lines]: #+caption: Convert marked LaTeX export blocks to LaTeX header lines. #+name: lst:org-latex-header-blocks-filter #+begin_src emacs-lisp (with-eval-after-load 'ox (defun org-latex-header-blocks-filter (backend) "Convert marked LaTeX export blocks to \"#+latex_header: \" lines. The marker is a line \"#+header: :header yes\" preceding the block. For instance, the LaTeX export block ,#+header: :header yes ,#+begin_export latex % This line converts to a LaTeX header line. ,#+end_export converts to \"#+latex_header: % This line converts to a LaTeX header line.\"." (when (org-export-derived-backend-p backend 'latex) (let ((blocks (org-element-map (org-element-parse-buffer 'greater-element nil) 'export-block (lambda (block) (let ((type (org-element-property :type block)) (header (org-export-read-attribute :header block :header))) (when (and (string= type "LATEX") (string= header "yes")) block)))))) (mapc (lambda (block) ;; Set point to where to insert LaTeX header lines ;; after deleting the block. (goto-char (org-element-property :post-affiliated block)) (let ((lines (split-string (org-element-property :value block) "\n"))) (delete-region (org-element-property :begin block) (org-element-property :end block)) (dolist (line lines) (insert (concat "#+latex_header: " (replace-regexp-in-string "\\` *" "" line) "\n"))))) ;; Reverse to go upwards to avoid wrecking the list of ;; block positions in the file that would occur in case ;; of going downwards. (reverse blocks)))))) #+end_src This file uses the new way, while keeping the old way for backwards compatibility, because the new way feels less hackish than the old way. A practical difference is that new way source blocks (contrary to old way export blocks) do not work in [[info:org#Export Settings][#+SETUPFILE: ]], but only in [[info:org#Export Settings][#+INCLUDE: ]] files. *** [[info:org#Export Settings][#+SETUPFILE: and #+INCLUDE: usage]] :PROPERTIES: :CUSTOM_ID: sec:setupfile+include-usage :END: Evaluation of the source block in listing [[lst:make-source-block-with-export-keyword-settings]] produces the source block that exports to listing [[lst:source-file-export-keyword-settings]] which shows the first six lines of this [[file:README.org]] file. The last two lines show that [[file:setup-include.org][setup-include.org]] is the argument for [[info:org#Export Settings][#+SETUPFILE:]] *and* [[info:org#Export Settings][#+INCLUDE:]]. #+caption[Make setup and include file export keyword settings source block]: #+caption: The shell script to make the source block containing the export #+caption: keyword settings. #+name: lst:make-source-block-with-export-keyword-settings #+begin_src shell :exports both :results drawer echo "#+caption[Source file export keyword settings]:" echo "#+caption: The first six lines of README.org containing the export" echo "#+caption: keyword settings." echo "#+name: lst:source-file-export-keyword-settings" echo "#+begin_src org :tangle no" head -n 6 README.org echo -n "#+end_src" #+end_src #+RESULTS: lst:make-source-block-with-export-keyword-settings :results: #+caption[Source file export keyword settings]: #+caption: The first six lines of README.org containing the export #+caption: keyword settings. #+name: lst:source-file-export-keyword-settings #+begin_src org :tangle no #+title: Emacs setup for use with LaTeX, Org, and Python #+author: Gerard Vermeulen #+latex_class: article #+latex_class_options: [11pt,a4paper,english,svgnames,tables] #+setupfile: "setup-include.org" #+include: "setup-include.org" #+end_src :end: Listing [[lst:setup-include-export-keyword-settings]] tangles into the [[file:setup-include.org][setup-include.org]] file and listing [[lst:by-backend-kbd-org-macro]] defines the tools for the [[https://orgmode.org/][Org mode]] =kbd= macro in [[file:setup-include.org][setup-include.org]]. #+caption[Setup and include file export keyword settings]: #+caption: Setup and include file export keyword settings. #+name: lst:setup-include-export-keyword-settings #+begin_src org ,#+babel: :cache no ,#+macro: kbd (eval (by-backend-kbd-org-macro $1)) ,#+options: ^:{} ,#+property: header-args:emacs-lisp :exports code :results silent :tangle init.el ,#+property: header-args:org :tangle setup-include.org ,#+startup: content #+end_src #+caption[Define the tools of the org-mode =kbd= macro]: #+caption: Define the tools for the org-mode =kbd= macro. #+name: lst:by-backend-kbd-org-macro #+begin_src emacs-lisp (with-eval-after-load 'ox (autoload 'htmlize-protect-string "htmlize" nil t) (defmacro by-backend (&rest body) `(cl-case org-export-current-backend ,@body)) (defun by-backend-kbd-org-macro (keys) (by-backend (html (format "@@html:%s@@" (htmlize-protect-string keys))) (latex (format "@@latex:\\colorbox{PowderBlue}{\\texttt{%s}}@@" keys))))) #+end_src Listing [[lst:use-latex-header-1]], [[lst:use-latex-header-2]], [[lst:use-latex-header-3]], and [[lst:use-latex-header-4]] tangle into the [[file:setup-include.org][setup-include.org]] file in order to create the [[https://www.latex-project.org/][LaTeX]] preamble. #+caption[LaTeX preamble: language, lists and floats]: #+caption: LaTeX preamble: language, lists and floats. #+name: lst:use-latex-header-1 #+begin_src org ,#+begin_src latex-header % LANGUAGE: \usepackage{babel} \usepackage{fvextra} \usepackage{csquotes} % LISTS: \usepackage{enumitem} \setlist{noitemsep} % LISTINGS: % Section 2.6 of caption-eng.pdf (texdoc caption) explains that the sign % of "skip" depends on the assumption "position=above" or "position=below". % The assumption should match the real caption position in the LaTeX code. \usepackage{caption} \usepackage[newfloat]{minted} \captionsetup[listing]{position=below,skip=0em} \usemintedstyle{xcode} % TABLES: % https://tex.stackexchange.com/questions/341205/ % what-is-the-difference-between-tabular-tabular-and-tabularx-environments % https://emacs.stackexchange.com/questions/26179/ % change-org-mode-table-style-just-for-latex-export % https://tex.stackexchange.com/questions/468585/ % table-formatting-using-siunitx \usepackage{booktabs} \usepackage{colortbl} \usepackage{tabularx} % DANGER: beware of Org table :width and :align options! ,#+end_src #+end_src #+caption[LaTeX preamble: page layout]: #+caption: LaTeX preamble: page layout. #+name: lst:use-latex-header-2 #+begin_src org ,#+begin_src latex-header % PAGE LAYOUT: \usepackage{fancyhdr} \usepackage{lastpage} \usepackage[ headheight=20mm, top=40mm, bottom=20mm, left=60pt, right=60pt, heightrounded, verbose, ]{geometry} % TECHNICS: \usepackage{siunitx} \usepackage{tikz} ,#+end_src #+end_src #+caption[LaTeX preamble: float barriers]: #+caption: LaTeX preamble: float barriers. #+name: lst:use-latex-header-3 #+begin_src org ,#+begin_src latex-header % FLOAT BARRIERS: % https://tex.stackexchange.com/questions/118662/use-placeins-for-subsections % Make section an implicit float barrier: \usepackage[section]{placeins} % Make subsection an implicit float barrier: \makeatletter \AtBeginDocument{% \expandafter\renewcommand\expandafter\subsection\expandafter{% \expandafter\@fb@secFB\subsection }% } \makeatother % Make subsubsection an implicit float barrier: \makeatletter \AtBeginDocument{% \expandafter\renewcommand\expandafter\subsubsection\expandafter{% \expandafter\@fb@secFB\subsubsection }% } \makeatother ,#+end_src #+end_src #+caption[LaTeX preamble: fancy headers and footers]: #+caption: LaTeX preamble: fancy headers and footers. #+name: lst:use-latex-header-4 #+begin_src org ,#+begin_src latex-header % FANCY HEADERS AND FOOTERS: % Add fancy headers and footers to normal pages. \pagestyle{fancy} \fancyhf{} \renewcommand{\footrulewidth}{0.4pt} \fancyfoot[C]{\emph{ Emacs setup for use with \LaTeX{}, Org, and Python -- Gerard Vermeulen}} \renewcommand{\headrulewidth}{0.4pt} \fancyhead[L]{\includegraphics[height=1.8cm]{Org-mode-unicorn.png}} \fancyhead[C]{ Page: \thepage/\pageref{LastPage} \\ \text{ } \\ \text{ } \\ DRAFT } \fancyhead[R]{\includegraphics[height=1.8cm]{Emacs-logo.png}} % Add fancy header and footer to custom titlepage. % https://tex.stackexchange.com/questions/506102/ % adding-header-and-footer-to-custom-titlepage \fancypagestyle{titlepage}{% \fancyhf{} \renewcommand{\footrulewidth}{0.4pt} \fancyfoot[C]{\emph{ Emacs setup for use with \LaTeX{}, Org, and Python -- Gerard Vermeulen}} \renewcommand{\headrulewidth}{0.4pt} \fancyhead[L]{\includegraphics[height=1.8cm]{Org-mode-unicorn.png}} \fancyhead[C]{ \pageref{LastPage} pages \\ \text{ } \\ \text{ } \\ DRAFT } \fancyhead[R]{\includegraphics[height=1.8cm]{Emacs-logo.png}} } % #+latex_header: END. ,#+end_src #+end_src *** [[info:org#LaTeX specific export settings][Advanced LaTeX export settings]] :PROPERTIES: :CUSTOM_ID: sec:advanced-latex-export-settings :END: [[https://emacs.stackexchange.com/questions/47347/customizing-org-latex-title-command-to-edit-title-page][How to customize =org-latex-title-command= only in this buffer]] #+caption[Define =my-ox-latex-export-buffer-local-variables=]: #+caption: Define =my-ox-latex-export-buffer-local-variables=. #+name: lst:emacs-lisp-setup-defun #+begin_src emacs-lisp :results silent (defun my-ox-latex-export-buffer-local-variables (title-page) (with-eval-after-load 'ox (make-variable-buffer-local 'org-export-before-parsing-hook) (cl-pushnew #'org-latex-header-blocks-filter org-export-before-parsing-hook)) (when (require 'ox-latex nil 'noerror) (make-variable-buffer-local 'org-latex-classes) (cl-pushnew '("article-local" "\\documentclass[11pt]{article} [NO-DEFAULT-PACKAGES] [PACKAGES] [EXTRA]" ("\\section{%s}" . "\\section*{%s}") ("\\subsection{%s}" . "\\subsection*{%s}") ("\\subsubsection{%s}" . "\\subsubsection*{%s}") ("\\paragraph{%s}" . "\\paragraph*{%s}") ("\\subparagraph{%s}" . "\\subparagraph*{%s}")) org-latex-classes :key #'car :test #'equal) (make-variable-buffer-local 'org-latex-title-command) (setq org-latex-title-command (concat title-page)) (make-variable-buffer-local 'org-latex-toc-command) (setq org-latex-toc-command (mapconcat 'identity '("" "\\tableofcontents\\label{toc}" "\\listoffigures" "\\listoflistings" "\\listoftables" "\\newpage" "") "\n")) (make-variable-buffer-local 'org-latex-subtitle-format) (setq org-latex-subtitle-format ""))) #+end_src Listing [[lst:emacs-lisp-setup-call]] initializes the buffer local variables =org-export-before-parsing-hook=, =org-latex-classes=, =org-latex-title-command=, =org-latex-toc-command=, and =org-latex-subtitle-format=. #+caption[Call =my-ox-latex-export-local-variables=]: #+caption: Use the setup macro for =ox-latex=. #+name: lst:emacs-lisp-setup-call #+header: :var title-page=lst/title-page #+begin_src emacs-lisp :tangle no (my-ox-latex-export-buffer-local-variables title-page) #+end_src #+caption[Show a title-page example for =org-latex-title-command=]: #+caption: Show a title-page example for =org-latex-title-command=. #+name: lst/title-page #+begin_src latex :exports code :results silent :tangle no \begin{titlepage} %% https://tex.stackexchange.com/questions/506102/ %% adding-header-and-footer-to-custom-titlepage \thispagestyle{titlepage} \begin{center} %% Title \begin{Huge} {\bf %t} \\ \vspace{1em} \end{Huge} %% Author \begin{Large} {\bf %a} \\ \vspace{1em} \end{Large} \end{center} \end{titlepage} #+end_src *** [[https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-LaTeX.html#orgcc214c1][Worg: backend dependent execution]] :PROPERTIES: :CUSTOM_ID: sec:backend-dependent-execution-update :END: #+caption[Worg update: backend dependent header arguments]: #+caption: Worg update: backend dependent header arguments. #+name: lst:backend-dependent-execution-update #+begin_src org :tangle worg-backend-dependent-execution-update.org ,#+latex_header: \usepackage{tikz} ,#+header: :file (by-backend (html "tree.svg") (latex nil)) ,#+header: :results (by-backend (html "raw file") (latex "latex replace")) ,#+header: :headers '("\\usepackage{tikz}\n") ,#+begin_src latex \usetikzlibrary{trees} \begin{tikzpicture} \node [circle, draw, fill=red!20] at (0,0) {1} child { node [circle, draw, fill=blue!30] {2} child { node [circle, draw, fill=green!30] {3} } child { node [circle, draw, fill=yellow!30] {4} }}; \end{tikzpicture} ,#+end_src # Setup ,#+begin_src emacs-lisp :exports none (with-eval-after-load 'ox (setq org-babel-latex-htlatex "htlatex") (defmacro by-backend (&rest body) `(cl-case org-export-current-backend ,@body))) ,#+end_src #+end_src This section updates the outdated [[https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-LaTeX.html#orgcc214c1][Worg: backend dependent execution]] example to Emacs-27.2 and Org-9.5.2. It shows how to export [[https://en.wikipedia.org/wiki/PGF/TikZ][PGF/TikZ]] images to: 1. [[https://en.wikipedia.org/wiki/PDF][PDF]] by embedding in [[https://www.latex-project.org/][LaTeX]]. 2. [[https://en.wikipedia.org/wiki/HTML][HTML]] by passing from [[https://www.latex-project.org/][LaTeX]] by [[https://en.wikipedia.org/wiki/PDF][PDF]] and to [[https://en.wikipedia.org/wiki/Scalable_Vector_Graphics][SVG]]. Listing [[lst:backend-dependent-execution-update]] tangles to [[file:worg-backend-dependent-execution-update.org][worg-backend-dependent-execution-update.org]] as either a standalone example or an example for inclusion. Finally, inclusion of [[file:worg-backend-dependent-execution-update.org][worg-backend-dependent-execution-update.org]] produces here the figure with the nodes 1, 2, 3, and 4:\\ #+include: worg-backend-dependent-execution-update.org How to include such figures as floats remains an open question. *** [[https://orgmode.org/worg/dev/org-syntax-edited.html][Org Syntax]] :PROPERTIES: :CUSTOM_ID: sec:org-syntax :END: Two tools to grok how [[https://orgmode.org/worg/dev/org-element-api.html][Org mode parsing]] works are the [[https://orgmode.org/worg/dev/org-syntax-edited.html][Org Syntax]] specification and the [[http://xahlee.info/emacs/emacs/elisp_parse_org_mode.html][Org mode parser tutorial]]. The [[https://orgmode.org/worg/dev/org-element-api.html][Org element parsing API]] boils down to three functions: 1. The function [[https://orgmode.org/worg/dev/org-element-api.html#global][~org-element-parse-buffer~]] implements a fully recursive buffer parser that returns an abstract syntax tree. 2. The functions [[https://orgmode.org/worg/dev/org-element-api.html#local][~org-element-at-point~ and ~org-element-context~]] return information on the document structure around point either at the element level or at the object level in case of ~org-element-context~. Listing [[lst:grok-org-element-tree]] improves the [[http://xahlee.info/emacs/emacs/elisp_parse_org_mode.html][Org mode parser tutorial]] by defining interactive wrappers that pretty print the results of those non-interactive =org-element= functions to an =Emacs-lisp= buffer. #+caption[Grok how =org-element= parses your document]: #+caption: Grok how =org-element= parses your document. #+name: lst:grok-org-element-tree #+begin_src emacs-lisp (with-eval-after-load 'org-element (when (autoload 'pp-display-expression "pp") (defconst grok-org-output "*Grok Org Element Output*" "Grok Org output buffer name.") (defun grok-org-element-at-point () (interactive) (pp-display-expression (org-element-at-point) grok-org-output)) (defun grok-org-element-context () (interactive) (pp-display-expression (org-element-context) grok-org-output)) (defun grok-org-element-parse-buffer () (interactive) (let ((what (completing-read "granularity: " '(headline element greater-element object) nil 'require-match))) (pp-display-expression (org-element-parse-buffer what) grok-org-output))) (defun grok-org-heading-components () (interactive) (pp-display-expression (org-heading-components) grok-org-output)))) #+end_src * Programming :PROPERTIES: :CUSTOM_ID: sec:programming :END: ** Common Lisp programming :PROPERTIES: :CUSTOM_ID: sec:common-lisp-programming :END: Listing [[lst:configure-sly]] configures the [[info:sly#Top][Sly (info)]] Common Lisp IDE for Emacs for use with [[http://www.sbcl.org/][Steel Bank Common Lisp (sbcl)]]: 1. It configures =sly-default-lisp= and =sly-lisp-implementations= as in the ~sly~ documentation string instead of in the [[info:sly#Multiple Lisps][multiple lisps (info)]] manual. 2. It ensures the [[info:sly#Auto-SLY][automatic connection to the lisp server (info)]] when opening a Common Lisp file. 3. It configures searching documentation in the [[http://www.lispworks.com/documentation/HyperSpec/Front/][Common Lisp HyperSpec]] according to the [[info:sly#Basic customization][basic customization (info)]] manual. Finally, listing [[lst:configure-sly]] uses a technique to [[info:sly#Loading Slynk faster][load Slynk faster (info)]] by means of a custom core file in src_emacs-lisp{no-littering-var-directory}. Listing [[lst:sbcl-core-for-sly]] tangles to a script to dump such a [[http://www.sbcl.org/][SBCL]] core. #+caption[Configure =sly=]: #+caption: Configure =sly=. #+name: lst:configure-sly #+begin_src emacs-lisp (with-eval-after-load 'sly (custom-set-variables ;; Customize `sly-default-lisp' instead of `inferior-lisp-program', ;; because `sly' uses `inferior-lisp-program' only as a backwards ;; compatibility fallback option. '(sly-default-lisp 'sbcl) `(sly-lisp-implementations '((sbcl (,(executable-find "sbcl") "--core" ,(no-littering-expand-var-file-name "sbcl.core-for-sly")))))) (add-hook 'sly-mode-hook (defun on-sly-mode-hook () (unless (sly-connected-p) (save-excursion (sly))))) (cond ((eq system-type 'darwin) (setq common-lisp-hyperspec-root "file:///usr/local/share/doc/hyperspec/HyperSpec/") (setq common-lisp-hyperspec-symbol-table (concat common-lisp-hyperspec-root "Data/Map_Sym.txt"))) ((eq system-type 'gnu/linux) (setq common-lisp-hyperspec-root "file:///usr/share/doc/hyperspec-7.0/HyperSpec/")) (t (message "Default Common Lisp HyperSpec access"))) (define-key sly-prefix-map (kbd "M-h") #'sly-documentation-lookup)) #+end_src #+caption[Script to dump a SBCL core for the Sly Common Lisp IDE]: #+caption: Script to dump a SBCL core for the Sly Common Lisp IDE. #+header: :tangle-mode (identity #o755) #+name: lst:sbcl-core-for-sly #+begin_src shell :noeval :tangle ~/bin/sbcl.core-for-sly #!/bin/sh sbcl <pylsp-auto-import-modules.patch #+end_src #+caption[Echo =pylsp-auto-import-modules.patch= listing]: #+caption: Echo =pylsp-auto-import-modules.patch= listing. #+name: lst:echo-pylsp-server-patch #+begin_src shell :exports both :results drawer echo "#+attr_latex: :options breaklines" echo "#+caption[Show =pylsp-auto-import-modules.patch=]:" echo "#+caption: Show =pylsp-auto-import-modules.patch=." echo "#+name: lst:show-pylsp-server-patch" echo "#+begin_src diff :tangle no" cat pylsp-auto-import-modules.patch echo -n "#+end_src" #+end_src #+RESULTS: lst:echo-pylsp-server-patch :results: #+attr_latex: :options breaklines #+caption[Show =pylsp-auto-import-modules.patch=]: #+caption: Show =pylsp-auto-import-modules.patch=. #+name: lst:show-pylsp-server-patch #+begin_src diff :tangle no diff --git a/pylsp/config/schema.json b/pylsp/config/schema.json index c29d78b..4f30101 100644 --- a/pylsp/config/schema.json +++ b/pylsp/config/schema.json @@ -69,6 +69,14 @@ "default": null, "description": "List of errors and warnings to enable." }, + "pylsp.plugins.jedi.auto_import_modules": { + "type": "array", + "default": ["numpy", "gi"], + "items": { + "type": "string" + }, + "description": "List of module names for jedi to import (jedi.settings.auto_import_modules)." + }, "pylsp.plugins.jedi.extra_paths": { "type": "array", "default": [], diff --git a/pylsp/workspace.py b/pylsp/workspace.py index bf312f6..4758b53 100644 --- a/pylsp/workspace.py +++ b/pylsp/workspace.py @@ -14,6 +14,8 @@ from . import lsp, uris, _utils log = logging.getLogger(__name__) +DEFAULT_AUTO_IMPORT_MODULES = ["numpy", "gi"] + # TODO: this is not the best e.g. we capture numbers RE_START_WORD = re.compile('[A-Za-z_0-9]*$') RE_END_WORD = re.compile('^[A-Za-z_0-9]*') @@ -252,6 +254,8 @@ class Document: if self._config: jedi_settings = self._config.plugin_settings('jedi', document_path=self.path) + jedi.settings.auto_import_modules = jedi_settings.get('auto_import_modules', + DEFAULT_AUTO_IMPORT_MODULES) environment_path = jedi_settings.get('environment') extra_paths = jedi_settings.get('extra_paths') or [] env_vars = jedi_settings.get('env_vars') #+end_src :end: *** [[https://github.com/pythonic-emacs/anaconda-mode][Anaconda]] :PROPERTIES: :CUSTOM_ID: sec:anaconda :END: Listing [[lst:configure-anaconda+company-for-python]] and [[lst:define-my-toggle-anaconda-mode]] configure [[https://github.com/pythonic-emacs/anaconda-mode][anaconda]]. See [[https://github.com/jorgenschaefer/elpy/blob/8d0de310d41ebf06b22321a8534546447456870c/elpy.el#L2775][elpy-module-company]] for how to handle ~company-backends~ as a local variable in listing [[lst:configure-anaconda+company-for-python]]. The call to [[info:elisp#Advising Functions][advice-add]] in listing [[lst:define-my-toggle-anaconda-mode]] opens Python =org-edit-src-code= buffers in ~anaconda-mode~. #+caption[Configure =anaconda= with =company= for Python]: #+caption: Configure =anaconda= with =company= for Python. #+name: lst:configure-anaconda+company-for-python #+begin_src emacs-lisp (with-eval-after-load 'python (with-eval-after-load 'company (when (and (fboundp 'anaconda-mode) (fboundp 'company-anaconda)) (defun my-disable-anaconda-mode () (when (derived-mode-p 'python-mode) (anaconda-mode -1) (make-variable-buffer-local 'company-backends) (setq company-backends (delq 'company-anaconda (mapcar #'identity company-backends))) (anaconda-eldoc-mode -1))) (defun my-enable-anaconda-mode () (when (derived-mode-p 'python-mode) (anaconda-mode +1) (make-variable-buffer-local 'company-backends) (setq company-backends (cons 'company-anaconda (delq 'company-semantic (delq 'company-capf (mapcar #'identity company-backends))))) (anaconda-eldoc-mode (if (file-remote-p default-directory) -1 1))))))) #+end_src #+caption[Define =my-toggle-anaconda-mode= for Python]: #+caption: Define =my-toggle-anaconda-mode= for Python. #+name: lst:define-my-toggle-anaconda-mode #+begin_src emacs-lisp (with-eval-after-load 'python (unless (and (fboundp 'my-disable-anaconda-mode) (fboundp 'my-enable-anaconda-mode)) (when (fboundp 'anaconda-mode) (defun my-disable-anaconda-mode () (when (derived-mode-p 'python-mode) (anaconda-mode -1) (anaconda-eldoc-mode -1))) (defun my-enable-anaconda-mode () (when (derived-mode-p 'python-mode) (anaconda-mode +1) (anaconda-eldoc-mode (if (file-remote-p default-directory) -1 1)))))) (when (fboundp 'my-enable-anaconda-mode) (advice-add 'org-edit-src-code :after #'my-enable-anaconda-mode)) (when (and (fboundp 'my-disable-anaconda-mode) (fboundp 'my-enable-anaconda-mode)) (defun my-toggle-anaconda-mode () "Toggle anaconda-mode with bells and whistles." (interactive) (if (bound-and-true-p anaconda-mode) (my-disable-anaconda-mode) (my-enable-anaconda-mode))))) #+end_src *** [[https://jedi.readthedocs.io/en/latest/][Jedi]] :PROPERTIES: :CUSTOM_ID: sec:jedi :END: Listing [[lst:example-py]] is a [[https://www.python.org][Python]] example to test whether [[https://jedi.readthedocs.io/en/latest/][jedi]] in combination with and either [[https://github.com/pythonic-emacs/anaconda-mode][anaconda]] or [[https://github.com/joaotavora/eglot][eglot]] works when coding certain functions of for instance [[https://numpy.org/][numpy]] and [[https://scipy.org/][scipy]]. #+caption[Tangle the =example.py= file]: #+caption: Tangle the =example.py= file. #+name: lst:example-py #+begin_src python :tangle example.py import numpy import astropy.units as apu a = numpy.arange(0, 11) a = numpy.linspace(0, 10, num=11) a = numpy.arccos(a) q = apu.Quantity(a, apu.meter) print(q) #+end_src *** TODO Look into: editing facilities 1. [[https://github.com/douglasdavis/numpydoc.el/blob/main/numpydoc.el][Emacs extension to insert numpy style docstrings in function definitions]] * [[https://github.com/emacs-tw/awesome-emacs#library][Libraries]] :PROPERTIES: :CUSTOM_ID: sec:libraries :END: ** [[info:dash.info#Top][Library dash.el (info)]] :PROPERTIES: :CUSTOM_ID: sec:dash-library :END: The library [[info:dash.info#Top][dash.el (info)]]positions itself as a modern alternative for the list processing API of [[info:cl#Top][cl]]. It is a requirement of several important packages in this Emacs setup (for instance [[https://github.com/pythonic-emacs/anaconda-mode#readme][anaconda]], [[https://github.com/andras-simonyi/citeproc-el#readme][citeproc]], [[https://github.com/magit/magit#readme][magit]], and [[https://github.com/Fuco1/smartparens#readme][smartparens]]). Listing [[lst:configure-dash]] enables fontification of =dash= macros and makes =info-lookup-symbol= take into account the =dash= macros. #+caption[Configure =dash= fontification and info lookup]: #+caption: Configure =dash= fontification and info lookup. #+name: lst:configure-dash #+begin_src emacs-lisp (when (fboundp #'global-dash-fontify-mode) (global-dash-fontify-mode)) (when (fboundp #'dash-register-info-lookup) (with-eval-after-load 'info-look (dash-register-info-lookup))) #+end_src ** [[https://github.com/rejeep/f.el][Library f.el]] :PROPERTIES: :CUSTOM_ID: sec:f-library :END: The library [[https://github.com/rejeep/f.el][f.el]] positions itself as a modern API for working with files and directories in Emacs. It is a requirement of several packages in this Emacs setup ([[https://github.com/pythonic-emacs/anaconda-mode#readme][anaconda]], [[https://github.com/andras-simonyi/citeproc-el#readme][citeproc]], [[https://github.com/pythonic-emacs/pythonic#readme][pythonic]]) and requires no configuration. ** [[https://github.com/magnars/s.el][Library s.el]] :PROPERTIES: :CUSTOM_ID: sec:s-library :END: The library [[https://github.com/magnars/s.el][s.el]] positions itself as the long lost Emacs string manipulation library. It is a requirement of several packages in this Emacs setup ([[https://github.com/pythonic-emacs/anaconda-mode#readme][anaconda]], [[https://github.com/andras-simonyi/citeproc-el#readme][citeproc]], [[https://github.com/bdarcus/citar#readme][citar]], and [[https://github.com/pythonic-emacs/company-anaconda][company-anaconda]]) and requires no configuration. * [[info:emacs#Minor Modes][Minor Modes (info)]] :PROPERTIES: :CUSTOM_ID: sec:minor-modes :END: ** [[https://github.com/victorhge/iedit#readme][Synchronal multiple-region editing]] :PROPERTIES: :CUSTOM_ID: sec:synchronal-multiple-region-editing :END: #+caption[Enable =iedit=]: #+caption: Enable =iedit=. #+name: lst:enable-iedit #+begin_src emacs-lisp (unless noninteractive (require 'iedit nil 'noerror)) #+end_src ** [[https://github.com/lewang/ws-butler#readme][Unobtrusive whitespace trimming]] :PROPERTIES: :CUSTOM_ID: sec:unobtrusive-whitespace-trimming :END: #+caption[Configure =ws-butler=]: #+caption: Configure =ws-butler=. #+name: lst:configure-ws-butler #+begin_src emacs-lisp (unless noninteractive (when (require 'ws-butler nil 'noerror) (custom-set-variables '(ws-butler-keep-whitespace-before-point nil)) (add-hook 'prog-mode-hook #'ws-butler-mode) (add-hook 'text-mode-hook #'ws-butler-mode))) #+end_src ** [[https://countvajhula.com/2021/09/25/the-animated-guide-to-symex/][Structural editing]] :PROPERTIES: :CUSTOM_ID: sec:structural-editing :END: Structural editing keeps character pairs (for instance parentheses, curly and square brackets as well as single and double quotes) balanced to leave code (for instance Lisp and Python) and text (for instance LaTeX and Org) structure intact. I use [[https://github.com/Fuco1/smartparens][smartparens]] which offers a normal mode (=smartparens-mode=) and a a strict mode (=smartparens-strict-mode=). Although both modes insert character pairs, the normal mode allows to delete one of the paired characters easily while the strict mode does not. Therefore, the strict mode is more for code editing since it never breaks programming language rules and the normal mode is more for text editing where structure is a matter of convention instead of programming language rules. For instance, the strict mode in Python allows to delete entire lists, tuples, or the arguments after the cursor (what Emacs calls =point=) in a function call without breaking the character pair balance. In order to repair a broken character pair balance, insert a single character by prefixing it with "C-q" bound to =quoted-insert=. The [[https://smartparens.readthedocs.io/en/latest/index.html][smartparens documentation]] targets experienced Emacs users. The following links show how to put the documentation to practical use: 1. [[https://gist.github.com/oantolin][Omar Antolin's gist "my-smartparens-config.el"]] is the first place to look for how to tweak [[https://github.com/Fuco1/smartparens][smartparens]]. However, the gist may be partially obsolete, since it is not part of his current [[https://github.com/oantolin/emacs-config][Emacs configuration]]. 2. [[https://lists.gnu.org/archive/html/help-gnu-emacs/2014-07/msg00135.html][How to enable smartparens in the minibuffer after eval-expression]] explains how the machinery after the first and after later usages of =eval-expression= differ and discusses options how to handle those differences. Listing [[lst:configure-smartparens]] aims to configure [[https://github.com/Fuco1/smartparens][smartparens]] for Elisp, LaTeX, Org, and Python. #+caption[Configure =smartparens=]: #+caption: Configure =smartparens=. #+name: lst:configure-smartparens #+begin_src emacs-lisp (unless noninteractive ;; To disables pairing of the quote character for lisp modes, ;; require smartparens-config instead of smartparens. (when (require 'smartparens-config nil 'noerror) (custom-set-variables '(sp-base-key-bindings 'sp) '(sp-override-key-bindings '(("C-(" . sp-backward-barf-sexp) ("C-)" . sp-forward-slurp-sexp)))) (dolist (hook '(prog-mode-hook text-mode-hook)) (add-hook hook #'smartparens-mode)) ;; Hook on the specific `eval-expression-minibuffer-setup-hook' ;; and not on the general `minibuffer-setup-hook'. (dolist (hook '(emacs-lisp-mode-hook eval-expression-minibuffer-setup-hook ielm-mode-hook lisp-mode-hook python-mode-hook sly-mrepl-mode-hook)) (add-hook hook #'smartparens-strict-mode)) ;; Tweak for the call to `smartparens-strict-mode' hooked on ;; `eval-expression-minibuffer-setup-hook'. (sp-with-modes '(fundamental-mode ; first usage. minibuffer-inactive-mode) ; later usage. (sp-local-pair "'" nil :actions nil)) ;; https://xenodium.com/emacs-smartparens-auto-indent/index.html (defun indent-between-pair (&rest _ignored) (newline) (indent-according-to-mode) (forward-line -1) (indent-according-to-mode)) (dolist (left '("(" "[" "{")) (sp-local-pair 'prog-mode left nil :post-handlers '((indent-between-pair "RET")))) (show-smartparens-global-mode +1))) #+end_src ** [[https://github.com/davidshepherd7/electric-operator#readme][Electric operators]] :PROPERTIES: :CUSTOM_ID: sec:electric-operators :END: Listing [[lst:configure-electric-operator-mode]] configures =electric-operator-mode= to add spaces around operators for compatibility with for instance the [[https://black.readthedocs.io/en/stable/][Black code formatter for Python]]. #+caption[Configure =electric-operator-mode=]: #+caption: Configure =electric-operator-mode=. #+name: lst:configure-electric-operator-mode #+begin_src emacs-lisp (when (fboundp 'electric-operator-mode) (add-hook 'c-mode-common #'electric-operator-mode) (add-hook 'python-mode-hook #'electric-operator-mode)) #+end_src ** [[https://joaotavora.github.io/yasnippet/][Smart snippets]] :PROPERTIES: :CUSTOM_ID: sec:smart-snippets :END: #+caption[Enable =yas-global-mode=]: #+caption: Enable =yas-global-mode=. #+name: lst:enable-yas-global-mode #+begin_src emacs-lisp (when (require 'yasnippet nil 'noerror) (custom-set-variables '(yas-alias-to-yas/prefix-p nil)) (yas-global-mode +1)) #+end_src * [[info:emacs#Display][Display (info)]] :PROPERTIES: :CUSTOM_ID: sec:display :END: ** [[info:emacs#Narrowing][Narrowing]] :PROPERTIES: :CUSTOM_ID: sec:narrowing :END: Narrowing means focusing in on some portion of the buffer and widening means focussing out on the whole buffer. This allows to concentrate temporarily on for instance a particular function or paragraph by removing clutter. The "Do What I Mean" [[https://endlessparentheses.com/emacs-narrow-or-widen-dwim.html][narrow-or-widen-dwim]] function allows to toggle between narrowed and widened buffer states. Here, the function =narrow-or-widen-dwim= operates also on tables by means of =org-narrow-to-table=. #+caption[Configure =narrow-or-widen-dwim=]: #+caption: Configure =narrow-or-widen-dwim=. #+name: lst:configure-narrow-or-widen-dwim #+begin_src emacs-lisp (defun org-narrow-to-table () "Narrow buffer to current table." (interactive) (if (org-table-p) (narrow-to-region (org-table-begin) (org-table-end)) (user-error "Not in a table"))) (defun narrow-or-widen-dwim (p) "Widen if buffer is narrowed, narrow-dwim otherwise. Dwim means: region, org-src-block, org-subtree, or defun, whichever applies first. Narrowing to org-src-block actually calls `org-edit-src-code'. With prefix P, don't widen, just narrow even if buffer is already narrowed." (interactive "P") (declare (interactive-only)) (cond ((and (buffer-narrowed-p) (not p)) (widen)) ((and (bound-and-true-p org-src-mode) (not p)) (org-edit-src-exit)) ((region-active-p) (narrow-to-region (region-beginning) (region-end))) ((derived-mode-p 'org-mode) (or (ignore-errors (org-edit-src-code)) (ignore-errors (org-narrow-to-block)) (ignore-errors (org-narrow-to-table)) (org-narrow-to-subtree))) ((derived-mode-p 'latex-mode) (LaTeX-narrow-to-environment)) ((derived-mode-p 'tex-mode) (TeX-narrow-to-group)) (t (narrow-to-defun)))) (define-key ctl-x-map (kbd "n t") #'org-narrow-to-table) (define-key ctl-x-map (kbd "C-n") #'narrow-or-widen-dwim) #+end_src ** [[info:emacs#Faces][Text faces or styles (info)]] :PROPERTIES: :CUSTOM_ID: sec:text-faces-or-styles :END: This setup does not configure [[info:emacs#Custom Themes][custom themes (info)]] in order to prevent endless useless tweaking. See the [[https://protesilaos.com/codelog/2020-09-05-emacs-note-mixed-font-heights/][note on mixed font heights in Emacs]] for how to setup fonts properly. It boils down to two rules: 1. The height of the default face must be an integer number to make the height a physical quantity. 2. The heights of all other faces must be real numbers to scale those heights with respect to the height of the face (those heights default to 1.0 for no scaling). The code in listing [[lst:configure-face-attributes]] source implements those rules. In case of proper initialization of all face heigths, font scaling is easy as listing [[lst:my-set-default-face-height]] shows. Finally, the code in listing [[lst:my-invert-default-face]] allows swapping the foreground and background colors of the default face on all frames. #+caption[Configure =face-attributse=]: #+caption: Configure =face-attributes=. #+name: lst:configure-face-attributes #+begin_src emacs-lisp (unless noninteractive ;; Set face attributes. (cond ((eq system-type 'darwin) (set-face-attribute 'default nil :family "Hack" :height 120) (set-face-attribute 'fixed-pitch nil :family "Hack") (set-face-attribute 'variable-pitch nil :family "FiraGo")) ((eq system-type 'gnu/linux) (set-face-attribute 'default nil :family "Hack" :height 110) (set-face-attribute 'fixed-pitch nil :family "Hack") (set-face-attribute 'variable-pitch nil :family "FiraGo")) (t (set-face-attribute 'default nil :family "Hack" :height 110) (set-face-attribute 'fixed-pitch nil :family "Hack") (set-face-attribute 'variable-pitch nil :family "DejaVu Sans")))) #+end_src #+caption[Implement =my-set-default-face-height=]: #+caption: Implement =my-set-default-face-height=. #+name: lst:my-set-default-face-height #+begin_src emacs-lisp (unless noninteractive (defun my-set-default-face-height () "Set the default face height in all current and future frames. Scale all other faces with a height that is a real number." (interactive) (let* ((prompt (format "face heigth (%s): " (face-attribute 'default :height))) (choices (mapcar #'number-to-string (number-sequence 50 200 10))) (height (string-to-number (completing-read prompt choices nil 'require-match)))) (message "Setting the height of the default face to %s" height) (set-face-attribute 'default nil :height height)))) #+end_src #+caption[Implement =my-invert-default-face=]: #+caption: Implement =my-invert-default-face=. #+name: lst:my-invert-default-face #+begin_src emacs-lisp (unless noninteractive (defun my-invert-default-face () "Invert the default face." (interactive) (invert-face 'default) (tweak-region-face-background-color))) #+end_src ** [[https://jblevins.org/log/rainbow-mode][Visualize color codes and names]] :PROPERTIES: :CUSTOM_ID: sec:rainbow-mode :END: Listing [[lst:enable-rainbow-mode]] enables =rainbow-mode= to colorize color codes and names in buffers for debugging. #+caption[Enable =rainbow-mode=]: #+caption: Enable =rainbow-mode=. #+name: lst:enable-rainbow-mode #+begin_src emacs-lisp (when (fboundp 'rainbow-mode) (custom-set-variables '(rainbow-x-colors-major-mode-list '(c++-mode c-mode emacs-lisp-mode inferior-emacs-lisp-mode java-mode lisp-interaction-mode org-mode python-mode))) (rainbow-mode +1)) #+end_src ** [[https://karthinks.com/software/batteries-included-with-emacs/][Flash the line around point for visual feedback]] :PROPERTIES: :CUSTOM_ID: sec:flash-line-around-point :END: #+caption[Implement =my-pulse-one-line=]: #+caption: Implement =my-pulse-one-line=. #+name: lst:my-pulse-one-line #+begin_src emacs-lisp (unless noninteractive ;; https://karthinks.com/software/batteries-included-with-emacs/ ;; https://www.reddit.com/r/emacs/comments/jwhr6g/batteries_included_with_emacs/ (defun my-pulse-one-line (&rest _) "Pulse the current line." (let ((pulse-iterations 16) (pulse-delay 0.1)) (pulse-momentary-highlight-one-line (point)))) (dolist (command '(scroll-up-command scroll-down-command recenter-top-bottom other-window)) (advice-add command :after #'my-pulse-one-line))) #+end_src * Applications :PROPERTIES: :CUSTOM_ID: sec:applications :END: ** [[https://github.com/skeeto/elfeed#readme][Elfeed: Emacs web feed reader]] :PROPERTIES: :CUSTOM_ID: sec:emacs-web-feed-reader :END: #+caption[Enable =elfeed=]: #+caption: Enable =elfeed=. #+name: lst:enable-elfeed #+begin_src emacs-lisp (autoload 'elfeed "elfeed" nil t) (global-set-key (kbd "C-x w") #'elfeed) (with-eval-after-load 'elfeed (custom-set-variables '(elfeed-feeds '(("http://www.howardism.org/index.xml" h-abrams) ("https://ambrevar.xyz/atom.xml" p-neirhardt) ("https://emacshorrors.com/feed.atom" v-schneidermann) ("https://emacsninja.com/emacs.atom" v-schneidermann) ("https://feeds.feedburner.com/InterceptedWithJeremyScahill" j-scahill) ("https://nullprogram.com/feed/" c-wellons) ("https://oremacs.com/atom.xml" o-krehel) ("https://planet.emacslife.com/atom.xml" planet-emacs) ("https://protesilaos.com/codelog.xml" p-stavrou) ("https://sachachua.com/blog/category/emacs/feed" s-chua) ("https://sciencescitoyennes.org/feed/" sciences) ("https://updates.orgmode.org/feed/updates" org-updates) ("https://www.aclu.org/taxonomy/feed-term/2152/feed" aclu) ("https://www.bof.nl/rss/" bof) ("https://www.democracynow.org/podcast-video.xml" dn) ("https://www.laquadrature.net/fr/rss.xml" lqdn) ("https://www.lemonde.fr/blog/huet/feed/" sciences))))) #+end_src ** [[info:emms#Top][Emacs Multimedia System (info)]] :PROPERTIES: :CUSTOM_ID: sec:emacs-multimedia-system :END: #+caption[Enable =emms=]: #+caption: Enable =emms=. #+name: lst:enable-emms #+begin_src emacs-lisp (custom-set-variables '(emms-mode-line-format "") '(emms-player-list '(emms-player-mpd emms-player-mpv)) `(emms-player-mpd-music-directory ,(expand-file-name "~/Music")) '(emms-player-mpd-server-name "localhost") '(emms-player-mpd-server-port "6600") '(emms-player-mpd-verbose t) '(emms-playing-time-display-format " %s ") '(emms-playlist-mode-center-when-go t)) (defun my-emms-print-metadata-find () (require 'find-func) (locate-file "emms-print-metadata" (expand-file-name "src" (file-name-directory (find-library-name "emms"))) exec-suffixes #'file-executable-p)) (with-eval-after-load 'emms (require 'emms-info-libtag) (let ((emms-print-metadata (my-emms-print-metadata-find))) (when emms-print-metadata (custom-set-variables '(emms-info-functions nil) `(emms-info-libtag-program-name ,emms-print-metadata)) (add-hook 'emms-info-functions #'emms-info-libtag)))) (with-eval-after-load 'elfeed-show (when (require 'emms-setup nil 'noerror) (emms-all))) (autoload 'emms-streams "emms-streams" nil 'interactive) (with-eval-after-load 'emms-streams (emms-all)) #+end_src * [[info:emacs#Init File][Init File (info)]] footer :PROPERTIES: :CUSTOM_ID: sec:user-init-file-footer :END: #+caption[Tangle the =user-init-file= footer]: #+caption: Tangle the =user-init-file= footer. #+name: lst:tangle-user-init-file-footer #+begin_src emacs-lisp (provide 'init) ;; Emacs looks for "Local variables:" after the last "?\n?\f". ;; Local Variables: ;; indent-tabs-mode: nil ;; End: ;;; init.el ends here #+end_src * Local variables linking to [[#sec:latexmk-save-compile-display-loop][Latexmk save-compile-display-loop]] :PROPERTIES: :CUSTOM_ID: sec:local-variables :END: Only the [[info:org#Top][Org]] source file shows the local variables footer. # Emacs looks for "Local variables:" after the last "\?n\?f". # Local Variables: # compile-command: "latexmk -interaction=nonstopmode -lualatex -pvc -shell-escape README.tex" # eval: (apply 'my-org-eval-blocks-named '("emacs-lisp-setup")) # fill-column: 80 # End: