GitHub - minad/consult: :mag: consult.el - Consulting completing-read (original) (raw)

consult.el - Consulting completing-read

GNU Emacs GNU ELPA GNU-devel ELPA MELPA MELPA Stable

Consult provides search and navigation commands based on the Emacs completion function completing-read. Completion allows you to quickly select an item from a list of candidates. Consult offers asynchronous and interactive consult-grep andconsult-ripgrep commands, and the line-based search command consult-line. Furthermore Consult provides an advanced buffer switching command consult-buffer to switch between buffers, recently opened files, bookmarks and buffer-like candidates from other sources. Some of the Consult commands are enhanced versions of built-in Emacs commands. For example the command consult-imenu presents a flat list of the Imenu with live preview, grouping and narrowing. Please take a look at the full list of commands.

Consult is fully compatible with completion systems centered around the standard Emacs completing-read API, notably the default completion system, Vertico, Mct, and Icomplete.

This package keeps the completion system specifics to a minimum. The ability of the Consult commands to work well with arbitrary completion systems is one of the main advantages of the package. Consult fits well into existing setups and it helps you to create a full completion environment out of small and independent components.

You can combine the complementary packages Marginalia, Embark and Orderless with Consult. Marginalia enriches the completion display with annotations, e.g., documentation strings or file information. The versatile Embark package provides local actions, comparable to a context menu. These actions operate on the selected candidate in the minibuffer or at point in normal buffers. For example, when selecting from a list of files, Embark offers an action to delete the file. Additionally Embark offers a facility to collect completion candidates in a collect buffer. The section Embark integration documents in detail how Consult and Embark work together.

Screenshots

https://github.com/minad/consult/blob/screenshots/consult-grep.gif?raw=true Fig. 1: Command consult-git-grep

https://github.com/minad/consult/blob/screenshots/consult-imenu.png?raw=true Fig. 2: Command consult-imenu

https://github.com/minad/consult/blob/screenshots/consult-line.png?raw=true Fig. 3: Command consult-line

Available commands

Most Consult commands follow the meaningful naming scheme consult-<thing>. Many commands implement a little known but convenient Emacs feature called “future history”, which guesses what input the user wants. At a command prompt type M-n and typically Consult will insert the symbol or thing at point into the input.

TIP: If you have Marginalia annotators activated, type M-x ^consult to see all Consult commands with their abbreviated description. Alternatively, typeC-h a ^consult to get an overview of all Consult variables and functions with their descriptions.

Virtual Buffers

Editing

Register

Grep and Find

Compilation

Histories

Modes

Org Mode

Help

(defun consult-info-emacs () "Search through Emacs info pages." (interactive) (consult-info "emacs" "efaq" "elisp" "cl" "compat"))

(defun consult-info-org () "Search through the Org info page." (interactive) (consult-info "org"))

(defun consult-info-completion () "Search through completion info pages." (interactive) (consult-info "vertico" "consult" "marginalia" "orderless" "embark" "corfu" "cape" "tempel"))

Miscellaneous

Instead of consult-completion-in-region, you may prefer to see the completions directly in the buffer as a small popup. In that case, I recommend the Corfu package. There is a technical limitation of consult-completion-in-region in combination with the Lsp modes. The Lsp server relies on the input at point, in order to generate refined candidate strings. Since the completion is transferred from the original buffer to the minibuffer, the server does not receive the updated input. In contrast, in-buffer Lsp completion for example via Corfu works properly since the completion takes place directly in the original buffer.

Special features

Consult enhances completing-read with live previews of candidates, additional narrowing capabilities to candidate groups and asynchronously generated candidate lists. The internal consult--read function, which is used by most Consult commands, is a thin wrapper around completing-read and provides the special functionality. In order to support multiple candidate sources there exists the high-level function consult--multi. The architecture of Consult allows it to work with different completion systems in the backend, while still offering advanced features.

Live previews

Some Consult commands support live previews. For example when you scroll through the items of consult-line, the buffer will scroll to the corresponding position. It is possible to jump back and forth between the minibuffer and the buffer to perform recursive editing while the search is ongoing.

Consult enables previews by default. You can disable them by adjusting theconsult-preview-key variable. Furthermore it is possible to specify keybindings which trigger the preview manually as shown in the example configuration. The default setting of consult-preview-key is any which means that Consult triggers the preview immediately on any key press when the selected candidate changes. You can configure each command individually with its own :preview-key. The following settings are possible:

A safe recommendation is to leave automatic immediate previews enabled in general and disable the automatic preview only for commands where the preview may be expensive due to file loading. Internally, Consult uses the value of this-command to determine the :preview-key customized. This means that if you wrap a consult-* command within your own function or command, you will also need to add the name of_your custom command_ to the consult-customize call in order for it to be considered.

(consult-customize consult-ripgrep consult-git-grep consult-grep consult-bookmark consult-recent-file consult-xref consult--source-bookmark consult--source-file-register consult--source-recent-file consult--source-project-recent-file ;; my/command-wrapping-consult ;; disable auto previews inside my command :preview-key '(:debounce 0.4 any) ;; Option 1: Delay preview ;; :preview-key "M-.") ;; Option 2: Manual preview

In this case one may wonder what the difference is between using an Embark action on the current candidate in comparison to a manually triggered preview. The main difference is that the files opened by manual preview are closed again after the completion session. During preview some functionality is disabled to improve the performance, see for example the customization variablesconsult-preview-variables and consult-preview-allowed-hooks. Only hooks listed in consult-preview-allowed-hooks are executed. This variable applies tofind-file-hook, change-major-mode-hook and mode hooks, e.g., prog-mode-hook. In order to enable additional font locking during preview, add the corresponding hooks to the allow list. The following code demonstrates this for org-modern andhl-todo.

;; local modes added to prog-mode hooks (add-to-list 'consult-preview-allowed-hooks 'hl-todo-mode) (add-to-list 'consult-preview-allowed-hooks 'elide-head-mode) ;; enabled global modes (add-to-list 'consult-preview-allowed-hooks 'global-org-modern-mode) (add-to-list 'consult-preview-allowed-hooks 'global-hl-todo-mode)

Files larger than consult-preview-partial-size are previewed partially. Delaying the preview is also useful for consult-theme, since the theme preview is slow. The delay results in a smoother UI experience.

;; Preview on any key press, but delay 0.5s (consult-customize consult-theme :preview-key '(:debounce 0.5 any)) ;; Preview immediately on M-., on up/down after 0.5s, on any other key after 1s (consult-customize consult-theme :preview-key '("M-." :debounce 0.5 "" "" :debounce 1 any))

Narrowing and grouping

Consult has special support for candidate groups. If the completion UI supports the grouping functionality, the UI separates the groups with thin lines and shows group titles. Grouping is useful if the list of candidates consists of candidates of multiple types or candidates from multiple sources, like theconsult-buffer command, which shows both buffers and recently opened files. Note that you can disable the group titles by setting the :group property of the corresponding command to nil using the consult-customize macro.

By entering a narrowing prefix or by pressing a narrowing key it is possible to restrict the completion candidates to a certain candidate group. When you use the consult-buffer command, you can enter the prefix b SPC to restrict list of candidates to buffers only. If you press DEL afterwards, the full candidate list will be shown again. Furthermore a narrowing prefix key and a widening key can be configured which can be pressed to achieve the same effect, see the configuration variables consult-narrow-key and consult-widen-key.

After pressing consult-narrow-key, the possible narrowing keys can be shown by pressing C-h. When pressing C-h after some prefix key, the prefix-help-command is invoked, which shows the keybinding help window by default. As a more compact alternative, there is the consult-narrow-help command which can be bound to a key, for example ? or C-h in the consult-narrow-map, as shown in the example configuration. If which-key is installed, the narrowing keys are automatically shown in the which-key window after pressing the consult-narrow-key.

Consult has support for asynchronous generation of candidate lists. This feature is used for search commands like consult-grep, where the list of matches is generated dynamically while the user is typing a regular expression. The grep process is executed in the background. When modifying the regular expression, the background process is terminated and a new process is started with the modified regular expression.

The matches, which have been found, can then be narrowed using the installed Emacs completion-style. This can be powerful if you are using for example theorderless completion style.

This two-level filtering is possible by splitting the input string. Part of the input string is treated as input to grep and part of the input is used for filtering. There are multiple splitting styles available, configured inconsult-async-split-styles-alist: nil, comma, semicolon and perl. The default splitting style is configured with the variable consult-async-split-style.

With the comma and semicolon splitting styles, the first word before the comma or semicolon is passed to grep, the remaining string is used for filtering. Thenil splitting style does not perform any splitting, the whole input is passed to grep.

The perl splitting style splits the input string at a punctuation character, using a similar syntax as Perl regular expressions.

Examples:

Asynchronous processes like find and grep create an error log buffer_*consult-async* (note the leading space), which is useful for troubleshooting. The prompt has a small indicator showing the process status:

Multiple sources

Multiple synchronous candidate sources can be combined. This feature is used by the consult-buffer command to present buffer-like candidates in a single menu for quick access. By default consult-buffer includes buffers, bookmarks, recent files and project-specific buffers and files. It is possible to configure the list of sources via the consult-buffer-sources variable. Arbitrary custom sources can be defined.

As an example, the bookmark source is defined as follows:

(defvar consult--source-bookmark `(:name "Bookmark" :narrow ?m :category bookmark :face consult-bookmark :history bookmark-history :items ,#'bookmark-all-names :action ,#'consult--bookmark-action))

Required source fields:

Optional source fields:

The :state and :action fields of the sources deserve a longer explanation. The:action function takes a single argument and is only called after selection with the selected candidate, if the selection has not been aborted. This functionality is provided for convenience and easy definition of sources. The:state field is more general. The :state function is a constructor function without arguments, which can perform some setup necessary for the preview. It must return a closure which takes an ACTION and a CANDIDATE argument. See the docstring of consult--with-preview for more details about the ACTION argument.

By default, consult-buffer previews buffers, bookmarks and files. Loading recent files or bookmarks can result in expensive operations. However it is possible to configure a manual preview as follows.

(consult-customize consult--source-bookmark consult--source-file-register consult--source-recent-file consult--source-project-recent-file :preview-key "M-.")

Sources can be added directly to the consult-buffer-source list for convenience. For example, the following source lists all Org buffers and lets you create new ones.

(defvar org-source (list :name "Org Buffer" :category 'buffer :narrow ?o :face 'consult-buffer :history 'buffer-name-history :state #'consult--buffer-state :new (lambda (name) (with-current-buffer (get-buffer-create name) (insert "#+title: " name "\n\n") (org-mode) (consult--buffer-action (current-buffer)))) :items (lambda () (consult--buffer-query :mode 'org-mode :as #'consult--buffer-pair))))

(add-to-list 'consult-buffer-sources 'org-source 'append)

One can create similar sources for other major modes. See the Consult wiki for many additional source examples. See also the documentation of consult-buffer and of the internal consult--multi API. The function consult--multi can be used to create new multi-source commands.

Embark integration

NOTE: Install the embark-consult package from MELPA, which provides Consult-specific Embark actions and the Occur buffer export.

Embark is a versatile package which offers context dependent actions, comparable to a context menu. See the Embark manual for an extensive description of its capabilities.

Actions are commands which can operate on the currently selected candidate (or target in Embark terminology). When completing files, for example thedelete-file command is offered. With Embark you can execute arbitrary commands on the currently selected candidate via M-x.

Furthermore Embark provides the embark-collect command, which collects candidates and presents them in an Embark collect buffer, where further actions can be applied to them. A related feature is the embark-export command, which exports candidate lists to a buffer of a special type. For example in the case of file completion, a Dired buffer is opened.

In the context of Consult, particularly exciting is the possibility to export the matching lines from consult-line, consult-outline, consult-mark andconsult-global-mark. The matching lines are exported to an Occur buffer where they can be edited via the occur-edit-mode (press key e). Similarly, Embark supports exporting the matches found by consult-grep, consult-ripgrep andconsult-git-grep to a Grep buffer, where the matches across files can be edited, if the wgrep package is installed. These three workflows are symmetric.

Configuration

Consult can be installed from ELPA or MELPA via the Emacs built-in package manager. Alternatively it can be directly installed from the development repository via other non-standard package managers.

There is the Consult wiki, where additional configuration examples can be contributed.

IMPORTANT: It is recommended that you enable lexical binding in your configuration. Many Consult-related code snippets require lexical binding, since they use lambdas and closures.

Use-package example

The Consult package only provides commands and does not add any keybindings or modes. Therefore the package is non-intrusive but requires a little setup effort. In order to use the Consult commands, it is advised to add keybindings for commands which are accessed often. Rarely used commands can be invoked viaM-x. Feel free to only bind the commands you consider useful to your workflow. The configuration shown here relies on the use-package macro, which is a convenient tool to manage package configurations.

NOTE: There is the Consult wiki, where you can contribute additional configuration examples.

;; Example configuration for Consult (use-package consult ;; Replace bindings. Lazily loaded by use-package'. :bind (;; C-c bindings in mode-specific-map' ("C-c M-x" . consult-mode-command) ("C-c h" . consult-history) ("C-c k" . consult-kmacro) ("C-c m" . consult-man) ("C-c i" . consult-info) ([remap Info-search] . consult-info) ;; C-x bindings in ctl-x-map' ("C-x M-:" . consult-complex-command) ;; orig. repeat-complex-command ("C-x b" . consult-buffer) ;; orig. switch-to-buffer ("C-x 4 b" . consult-buffer-other-window) ;; orig. switch-to-buffer-other-window ("C-x 5 b" . consult-buffer-other-frame) ;; orig. switch-to-buffer-other-frame ("C-x t b" . consult-buffer-other-tab) ;; orig. switch-to-buffer-other-tab ("C-x r b" . consult-bookmark) ;; orig. bookmark-jump ("C-x p b" . consult-project-buffer) ;; orig. project-switch-to-buffer ;; Custom M-# bindings for fast register access ("M-#" . consult-register-load) ("M-'" . consult-register-store) ;; orig. abbrev-prefix-mark (unrelated) ("C-M-#" . consult-register) ;; Other custom bindings ("M-y" . consult-yank-pop) ;; orig. yank-pop ;; M-g bindings in goto-map' ("M-g e" . consult-compile-error) ("M-g f" . consult-flymake) ;; Alternative: consult-flycheck ("M-g g" . consult-goto-line) ;; orig. goto-line ("M-g M-g" . consult-goto-line) ;; orig. goto-line ("M-g o" . consult-outline) ;; Alternative: consult-org-heading ("M-g m" . consult-mark) ("M-g k" . consult-global-mark) ("M-g i" . consult-imenu) ("M-g I" . consult-imenu-multi) ;; M-s bindings in `search-map' ("M-s d" . consult-find) ;; Alternative: consult-fd ("M-s c" . consult-locate) ("M-s g" . consult-grep) ("M-s G" . consult-git-grep) ("M-s r" . consult-ripgrep) ("M-s l" . consult-line) ("M-s L" . consult-line-multi) ("M-s k" . consult-keep-lines) ("M-s u" . consult-focus-lines) ;; Isearch integration ("M-s e" . consult-isearch-history) :map isearch-mode-map ("M-e" . consult-isearch-history) ;; orig. isearch-edit-string ("M-s e" . consult-isearch-history) ;; orig. isearch-edit-string ("M-s l" . consult-line) ;; needed by consult-line to detect isearch ("M-s L" . consult-line-multi) ;; needed by consult-line to detect isearch ;; Minibuffer history :map minibuffer-local-map ("M-s" . consult-history) ;; orig. next-matching-history-element ("M-r" . consult-history)) ;; orig. previous-matching-history-element

;; Enable automatic preview at point in the Completions buffer. This is ;; relevant when you use the default completion UI. :hook (completion-list-mode . consult-preview-at-point-mode)

;; The :init configuration is always executed (Not lazy) :init

;; Optionally configure the register formatting. This improves the register ;; preview for consult-register', consult-register-load', ;; `consult-register-store' and the Emacs built-ins. (setq register-preview-delay 0.5 register-preview-function #'consult-register-format)

;; Optionally tweak the register preview window. ;; This adds thin lines, sorting and hides the mode line of the window. (advice-add #'register-preview :override #'consult-register-window)

;; Use Consult to select xref locations with preview (setq xref-show-xrefs-function #'consult-xref xref-show-definitions-function #'consult-xref)

;; Configure other variables and modes in the :config section, ;; after lazily loading the package. :config

;; Optionally configure preview. The default value ;; is 'any, such that any key triggers the preview. ;; (setq consult-preview-key 'any) ;; (setq consult-preview-key "M-.") ;; (setq consult-preview-key '("S-" "S-")) ;; For some commands and buffer sources it is useful to configure the ;; :preview-key on a per-command basis using the `consult-customize' macro. (consult-customize consult-theme :preview-key '(:debounce 0.2 any) consult-ripgrep consult-git-grep consult-grep consult-bookmark consult-recent-file consult-xref consult--source-bookmark consult--source-file-register consult--source-recent-file consult--source-project-recent-file ;; :preview-key "M-." :preview-key '(:debounce 0.4 any))

;; Optionally configure the narrowing key. ;; Both < and C-+ work reasonably well. (setq consult-narrow-key "<") ;; "C-+"

;; Optionally make narrowing help available in the minibuffer. ;; You may want to use `embark-prefix-help-command' or which-key instead. ;; (keymap-set consult-narrow-map (concat consult-narrow-key " ?") #'consult-narrow-help) )

Custom variables

TIP: If you have Marginalia installed, type M-x customize-variable RET ^consult to see all Consult-specific customizable variables with their current values and abbreviated description. Alternatively, type C-h a ^consult to get an overview of all Consult variables and functions with their descriptions.

Variable Description
consult-after-jump-hook Functions to call after jumping to a location
consult-async-input-debounce Input debounce for asynchronous commands
consult-async-input-throttle Input throttle for asynchronous commands
consult-async-min-input Minimum numbers of input characters
consult-async-refresh-delay Refresh delay for asynchronous commands
consult-async-split-style Splitting style used for async commands
consult-async-split-styles-alist Available splitting styles used for async commands
consult-bookmark-narrow Narrowing configuration for consult-bookmark
consult-buffer-filter Filter for consult-buffer
consult-buffer-sources List of virtual buffer sources
consult-fd-args Command line arguments for fd
consult-find-args Command line arguments for find
consult-fontify-max-size Buffers larger than this limit are not fontified
consult-fontify-preserve Preserve fontification for line-based commands.
consult-git-grep-args Command line arguments for git-grep
consult-goto-line-numbers Show line numbers for consult-goto-line
consult-grep-max-columns Maximal number of columns of the matching lines
consult-grep-args Command line arguments for grep
consult-imenu-config Mode-specific configuration for consult-imenu
consult-line-numbers-widen Show absolute line numbers when narrowing is active
consult-line-start-from-top Start the consult-line search from the top
consult-locate-args Command line arguments for locate
consult-man-args Command line arguments for man
consult-mode-command-filter Filter for consult-mode-command
consult-mode-histories Mode-specific history variables
consult-narrow-key Narrowing prefix key during completion
consult-point-placement Placement of the point when jumping to matches
consult-preview-key Keys which triggers preview
consult-preview-allowed-hooks List of hooks to allow during preview
consult-preview-excluded-buffers Predicate to exclude buffers from preview
consult-preview-excluded-files Regexps matched against file names during preview
consult-preview-max-count Maximum number of files to keep open during preview
consult-preview-partial-size Files larger than this size are previewed partially
consult-preview-partial-chunk Size of the file chunk which is previewed partially
consult-preview-variables Alist of variables to bind during preview
consult-project-buffer-sources List of virtual project buffer sources
consult-project-function Function which returns current project root
consult-register-prefix Prefix string for register keys during completion
consult-ripgrep-args Command line arguments for ripgrep
consult-themes List of themes to be presented for selection
consult-widen-key Widening key during completion

Project support

Multiple Consult search commands like consult-grep try to discover the current project and search in the project top level directory by default, if a project is found. Otherwise they fall back to the default-directory. By default, Consult uses the Emacs built-in project discovery support (project-current andproject-root). It is possible to configure alternative methods via the customization variable consult-project-function.

;; Optionally configure a different project root function. ;; 1. project.el (the default) (setq consult-project-function #'consult--default-project--function) ;; 2. vc.el (vc-root-dir) (setq consult-project-function (lambda () (vc-root-dir))) ;; 3. locate-dominating-file (setq consult-project-function (lambda () (locate-dominating-file "." ".git"))) ;; 4. projectile.el (projectile-project-root) (autoload 'projectile-project-root "projectile") (setq consult-project-function (lambda (_) (projectile-project-root))) ;; 5. Disable project support (setq consult-project-function nil)

Fine-tuning of individual commands

NOTE: Consult supports fine-grained customization of individual commands. This configuration feature exists for experienced users with special requirements. There is the Consult wiki, where we collect further configuration examples.

Commands and buffer sources allow flexible, individual customization by using the consult-customize macro. You can override any option passed to the internalconsult--read API. Note that since consult--read is part of the internal API, options could be removed, replaced or renamed in future versions of the package.

Useful options are:

(consult-customize ;; Disable preview for consult-theme' completely. consult-theme :preview-key nil ;; Set preview for consult-buffer' to key M-.' consult-buffer :preview-key "M-." ;; For consult-line' change the prompt and specify multiple preview ;; keybindings. Note that you should bind and in the ;; minibuffer-local-completion-map' or vertico-map' to the commands which ;; select the previous or next candidate. consult-line :prompt "Search: " :preview-key '("S-" "S-"))

The configuration values are evaluated at runtime, just before the completion session is started. Therefore you can use for example thing-at-point to adjust the initial input or the future history.

(consult-customize consult-line :add-history (seq-some #'thing-at-point '(region symbol)))

(defalias 'consult-line-thing-at-point 'consult-line)

(consult-customize consult-line-thing-at-point :initial (thing-at-point 'symbol))

Generally it is possible to modify commands for your individual needs by the following techniques:

  1. Use consult-customize in order to change the command or source settings.
  2. Create your own wrapper function which passes modified arguments to the Consult functions.
  3. Create your own buffer multi sources for consult-buffer.
  4. Create advices to modify some internal behavior.
  5. Write or propose a patch.

I use and recommend this combination of packages:

There exist multiple fine completion UIs beside Vertico, which are supported by Consult. Give them a try and find out which interaction model fits best for you.

Note that all packages are independent and can be exchanged with alternative components, since there exist no hard dependencies. Furthermore it is possible to get started with only default completion and Consult and add more components later to the mix. For example you can omit Marginalia if you don’t need annotations. I highly recommend the Embark package, but in order to familiarize yourself with the other components, you can first start without it - or you could use with Embark right away and add the other components later on.

We document a list of auxiliary packages in the Consult wiki. These packages integrate Consult with special programs or with other packages in the wider Emacs ecosystem.

Bug reports

If you find a bug or suspect that there is a problem with Consult, please carry out the following steps:

  1. Search through the issue tracker if your issue has been reported before (and has been resolved eventually) in the meantime.
  2. Remove all packages involved in the suspected bug from your installation.
  3. Reinstall the newest version of all relevant packages. Updating alone is not sufficient, since package.el sometimes causes miscompilation. The list of packages includes Consult, Compat, Vertico or other completion UIs, Marginalia, Embark and Orderless.
  4. Either use the default completion UI or ensure that exactly one ofvertico-mode, mct-mode, or icomplete-mode is enabled. The unsupported modesselectrum-mode, ivy-mode, helm-mode, ido-mode and ido-ubiquitous-mode must be disabled.
  5. Ensure that the completion-styles variable is properly configured. Try to setcompletion-styles to a list including substring or orderless.
  6. Try to reproduce the issue with the newest stable Emacs version. Start a bare bone Emacs instance with emacs -Q on the command line. Execute the following minimal code snippets in the scratch buffer. This way we can exclude side effects due to configuration settings. If other packages are relevant to reproduce the issue, include them in the minimal configuration snippet.

Minimal setup with Vertico for emacs -Q:

(package-initialize) (require 'consult) (require 'vertico) (vertico-mode) (setq completion-styles '(substring basic))

Minimal setup with the default completion system for emacs -Q:

(package-initialize) (require 'consult) (setq completion-styles '(substring basic))

Please provide the necessary important information with your bug report:

When evaluating Consult-related code snippets you should enable lexical binding. Consult often relies on lambdas and lexical closures.

Contributions

Consult is a community effort, please participate in the discussions. Contributions are welcome, but you may want to discuss potential contributions first. Since this package is part of GNU ELPA contributions require a copyright assignment to the FSF.

If you have a proposal, take a look at the Consult issue tracker and the Consult wishlist. There have been many prior feature discussions. Please search through the issue tracker, maybe your issue or feature request has already been discussed. You can contribute to the Consult wiki, in case you want to share small configuration or command snippets.

Acknowledgments

This package took inspiration from Counsel by Oleh Krehel. Some of the Consult commands originated in the Counsel package or the wiki of the Selectrum package. This package exists only thanks to the help of these great contributors and thanks to the feedback of many users. Thank you!

Code contributions: Aymeric Agon-Rambosson, Amos Bird, Ashton Wiersdorf, Adam Spiers, Augusto Stoffel, Clemens Radermacher, Zhengyi, Geoffrey Lessel, Illia Ostapyshyn, jakanakaevangeli, JD Smith, Jean-Philippe Bernardy, mattiasdrp,Mohamed Abdelnour, Mohsin Kaleem, Fox Kiester, Omar Antolín Camarena, Earl Hyatt, Omar Polo, Piotr Kwiecinski, Robert Weiner, Sergey Kostyaev, Alexandru Scvorțov, Tecosaur, Sylvain Rousseau, Tom Fitzhenry, Iñigo Serna and Alex Kreisher.

Advice and useful discussions: Enrique Kessler Martínez, Adam Porter, Bruce d’Arcus, Clemens Radermacher, Dmitry Gutov, Howard Melman, Itai Y. Efrat, JD Smith, Manuel Uberti, Stefan Monnier, Omar Antolín Camarena, Steve Purcell,Radon Rosborough, Tom Fitzhenry and Protesilaos Stavrou.