dotemacs

README-elpa (29670B)

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 	     CORFU.EL - COMPLETION OVERLAY REGION FUNCTION
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 Table of Contents
 ─────────────────
 
 1. Features
 2. Installation and Configuration
 .. 1. Auto completion
 .. 2. Completing in the minibuffer
 .. 3. Completing in the Eshell or Shell
 .. 4. Orderless completion
 .. 5. TAB-and-Go completion
 .. 6. Transfer completion to the minibuffer
 3. Key bindings
 4. Extensions
 5. Complementary packages
 6. Alternatives
 7. Contributions
 
 
 Corfu enhances completion at point with a small completion popup. The
 current candidates are shown in a popup below or above the point. Corfu
 is the minimalistic `completion-in-region' counterpart of the [Vertico]
 minibuffer UI.
 
 Corfu is a small package, which relies on the Emacs completion
 facilities and concentrates on providing a polished completion
 UI. Completions are either provided by commands like
 `dabbrev-completion' or by pluggable backends
 (`completion-at-point-functions', Capfs). Most programming language
 major modes implement a Capf. Furthermore the language server packages,
 [Eglot] and [Lsp-mode], use Capfs which talk to the LSP server to
 retrieve the completions. Corfu does not include its own completion
 backends. The Emacs built-in Capfs and the Capfs provided by other
 programming language packages are usually sufficient. A few additional
 Capfs and completion utilities are provided by the [Cape] package.
 
 *NOTE*: Corfu uses child frames to show the popup and falls back to the
 default setting of the `completion-in-region-function' on non-graphical
 displays. If you want to use Corfu in the terminal, install the package
 [corfu-terminal], which provides an alternative overlay-based display.
 
 Table of Contents
 ─────────────────
 
 1. Features
 2. Installation and Configuration
 .. 1. Auto completion
 .. 2. Completing in the minibuffer
 .. 3. Completing in the Eshell or Shell
 .. 4. Orderless completion
 .. 5. TAB-and-Go completion
 .. 6. Transfer completion to the minibuffer
 3. Key bindings
 4. Extensions
 5. Complementary packages
 6. Alternatives
 7. Contributions
 
 
 [Vertico] <https://github.com/minad/vertico>
 
 [Eglot] <https://github.com/joaotavora/eglot>
 
 [Lsp-mode] <https://github.com/emacs-lsp/lsp-mode>
 
 [Cape] <https://github.com/minad/cape>
 
 [corfu-terminal] <https://codeberg.org/akib/emacs-corfu-terminal>
 
 
 1 Features
 ══════════
 
   • Timer-based auto-completions (/off/ by default, set `corfu-auto').
   • Popup display with scrollbar indicator and arrow key navigation.
   • The popup can be summoned explicitly by pressing `TAB' at any time.
   • The current candidate is inserted with `TAB' and selected with
     `RET'.
   • Candidates sorting by prefix, string length and alphabetically.
   • The selected candidate is previewed (configurable via
     `corfu-preview-current').
   • The selected candidate automatically committed on further input by
     default.  (configurable via `corfu-preview-current').
   • The [Orderless] completion style is supported. The filter string can
     contain arbitrary characters, after inserting a space via `M-SPC'
     (configurable via `corfu-quit-at-boundary' and `corfu-separator').
   • Deferred completion style highlighting for performance.
   • Support for candidate annotations and documentation in the echo
     area.
   • Deprecated candidates are crossed out in the display.
   • Icons can be provided by an external package via margin formatter
     functions.
   • Extensions: Quick keys, Index keys, Sorting by history, Candidate
     documentation
 
 
 [Orderless] <https://github.com/oantolin/orderless>
 
 
 2 Installation and Configuration
 ════════════════════════════════
 
   Corfu is available from [GNU ELPA], such that it can be installed
   directly via `package-install'. After installation, the global minor
   mode can be enabled with `M-x global-corfu-mode'. In order to
   configure Corfu and other packages in your init.el, you may want to
   use `use-package'.
 
   Corfu is highly flexible and customizable via `corfu-*' customization
   variables, such that you can adapt it precisely to your
   requirements. However in order to quickly try out the Corfu completion
   package, it should be sufficient to activate `global-corfu-mode'. You
   can experiment with manual completion for example in an Elisp buffer
   or in an Eshell or Shell buffer. For auto completion, set
   `corfu-auto=t' before turning on `global-corfu-mode'.
 
   Here is an example configuration:
 
   ┌────
   │ (use-package corfu
   │   ;; Optional customizations
   │   ;; :custom
   │   ;; (corfu-cycle t)                ;; Enable cycling for `corfu-next/previous'
   │   ;; (corfu-auto t)                 ;; Enable auto completion
   │   ;; (corfu-separator ?\s)          ;; Orderless field separator
   │   ;; (corfu-quit-at-boundary nil)   ;; Never quit at completion boundary
   │   ;; (corfu-quit-no-match nil)      ;; Never quit, even if there is no match
   │   ;; (corfu-preview-current nil)    ;; Disable current candidate preview
   │   ;; (corfu-preselect-first nil)    ;; Disable candidate preselection
   │   ;; (corfu-on-exact-match nil)     ;; Configure handling of exact matches
   │   ;; (corfu-echo-documentation nil) ;; Disable documentation in the echo area
   │   ;; (corfu-scroll-margin 5)        ;; Use scroll margin
   │ 
   │   ;; Enable Corfu only for certain modes.
   │   ;; :hook ((prog-mode . corfu-mode)
   │   ;;        (shell-mode . corfu-mode)
   │   ;;        (eshell-mode . corfu-mode))
   │ 
   │   ;; Recommended: Enable Corfu globally.
   │   ;; This is recommended since Dabbrev can be used globally (M-/).
   │   ;; See also `corfu-excluded-modes'.
   │   :init
   │   (global-corfu-mode))
   │ 
   │ ;; A few more useful configurations...
   │ (use-package emacs
   │   :init
   │   ;; TAB cycle if there are only few candidates
   │   (setq completion-cycle-threshold 3)
   │ 
   │   ;; Emacs 28: Hide commands in M-x which do not apply to the current mode.
   │   ;; Corfu commands are hidden, since they are not supposed to be used via M-x.
   │   ;; (setq read-extended-command-predicate
   │   ;;       #'command-completion-default-include-p)
   │ 
   │   ;; Enable indentation+completion using the TAB key.
   │   ;; `completion-at-point' is often bound to M-TAB.
   │   (setq tab-always-indent 'complete))
   └────
 
   Dabbrev completion is based on `completion-in-region' and can be used
   with Corfu.  You may want to swap the `dabbrev-completion' with the
   `dabbrev-expand' key for easier access, if you prefer completion. Also
   take a look at the `cape-dabbrev' completion at point function
   provided by my [Cape] package.
 
   ┌────
   │ ;; Use Dabbrev with Corfu!
   │ (use-package dabbrev
   │   ;; Swap M-/ and C-M-/
   │   :bind (("M-/" . dabbrev-completion)
   │ 	 ("C-M-/" . dabbrev-expand))
   │   ;; Other useful Dabbrev configurations.
   │   :custom
   │   (dabbrev-ignored-buffer-regexps '("\\.\\(?:pdf\\|jpe?g\\|png\\)\\'")))
   └────
 
   If you start to configure the package more deeply, I recommend to give
   the Orderless completion style a try for filtering. Orderless
   completion is different from the familiar prefix TAB completion. Corfu
   can be used with the default completion styles. The use of Orderless
   is not a necessity.
 
   ┌────
   │ ;; Optionally use the `orderless' completion style.
   │ (use-package orderless
   │   :init
   │   ;; Configure a custom style dispatcher (see the Consult wiki)
   │   ;; (setq orderless-style-dispatchers '(+orderless-dispatch)
   │   ;;       orderless-component-separator #'orderless-escapable-split-on-space)
   │   (setq completion-styles '(orderless basic)
   │ 	completion-category-defaults nil
   │ 	completion-category-overrides '((file (styles . (partial-completion))))))
   └────
 
   The `basic' completion style is specified as fallback in addition to
   `orderless' in order to ensure that completion commands which rely on
   dynamic completion tables, e.g., `completion-table-dynamic' or
   `completion-table-in-turn', work correctly. See `+orderless-dispatch'
   in the [Consult wiki] for an advanced Orderless style
   dispatcher. Additionally enable `partial-completion' for file path
   expansion. `partial-completion' is important for file wildcard
   support. Multiple files can be opened at once with `find-file' if you
   enter a wildcard. You may also give the `initials' completion style a
   try.
 
   See also the [Corfu Wiki] and the [Cape manual] for additional Capf
   configuration tips. The Lsp-mode configuration is documented in the
   wiki. For more general documentation read the chapter about completion
   in the [Emacs manual]. If you want to create your own Capfs, you can
   find documentation about completion in the [Elisp manual].
 
 
 [GNU ELPA] <http://elpa.gnu.org/packages/corfu.html>
 
 [Cape] <https://github.com/minad/cape>
 
 [Consult wiki] <https://github.com/minad/consult/wiki>
 
 [Corfu Wiki] <https://github.com/minad/corfu/wiki>
 
 [Cape manual] <https://github.com/minad/cape>
 
 [Emacs manual]
 <https://www.gnu.org/software/emacs/manual/html_node/emacs/Completion.html>
 
 [Elisp manual]
 <https://www.gnu.org/software/emacs/manual/html_node/elisp/Completion.html>
 
 2.1 Auto completion
 ───────────────────
 
   Auto completion is disabled by default, but can be enabled by setting
   `corfu-auto=t'. Furthermore you may want to configure Corfu to quit
   completion eagerly, such that the completion popup stays out of your
   way when it appeared unexpectedly.
 
   ┌────
   │ ;; Enable auto completion and configure quitting
   │ (setq corfu-auto t
   │       corfu-quit-no-match 'separator) ;; or t
   └────
 
   I recommend to experiment a bit with the various settings and key
   bindings to find a configuration which works for you. There is no one
   size fits all solution. Some people like auto completion, some like
   manual completion, some want to cycle with TAB and some with the arrow
   keys.
 
   In case you like aggressive auto completion settings, where the
   completion popup appears immediately, I recommend to use a cheap
   completion style like `basic', which performs prefix filtering. In
   this case Corfu completion should still be very fast in buffers with
   efficient completion backends. You can try the following settings in
   an Elisp buffer or the Emacs scratch buffer.
 
   ┌────
   │ ;; Aggressive completion, cheap prefix filtering.
   │ (setq-local corfu-auto t
   │ 	    corfu-auto-delay 0
   │ 	    corfu-auto-prefix 0
   │ 	    completion-styles '(basic))
   └────
 
   If you want to combine fast prefix filtering and Orderless filtering
   you can still do that by defining a custom Orderless completion style
   via `orderless-define-completion-style'. We use a custom style
   dispatcher, which enables prefix filtering for input shorter than 4
   characters. Note that such a setup is quite advanced. Please refer to
   the Orderless documentation and source code for further details.
 
   ┌────
   │ (defun orderless-fast-dispatch (word index total)
   │   (and (= index 0) (= total 1) (length< word 4)
   │        `(orderless-regexp . ,(concat "^" (regexp-quote word)))))
   │ 
   │ (orderless-define-completion-style orderless-fast
   │   (orderless-style-dispatchers '(orderless-fast-dispatch))
   │   (orderless-matching-styles '(orderless-literal orderless-regexp)))
   │ 
   │ (setq-local corfu-auto t
   │ 	    corfu-auto-delay 0
   │ 	    corfu-auto-prefix 0
   │ 	    completion-styles '(orderless-fast))
   └────
 
 
 2.2 Completing in the minibuffer
 ────────────────────────────────
 
   Corfu can be used for completion in the minibuffer, since it relies on
   child frames to display the candidates. By default,
   `global-corfu-mode' does not activate `corfu-mode' in the minibuffer,
   to avoid interference with specialised minibuffer completion UIs like
   Vertico or Mct. However you may still want to enable Corfu completion
   for commands like `M-:' (`eval-expression') or `M-!'
   (`shell-command'), which read from the minibuffer. Activate
   `corfu-mode' only if `completion-at-point' is bound in the
   minibuffer-local keymap to achieve this effect.
 
   ┌────
   │ (defun corfu-enable-in-minibuffer ()
   │   "Enable Corfu in the minibuffer if `completion-at-point' is bound."
   │   (when (where-is-internal #'completion-at-point (list (current-local-map)))
   │     ;; (setq-local corfu-auto nil) Enable/disable auto completion
   │     (corfu-mode 1)))
   │ (add-hook 'minibuffer-setup-hook #'corfu-enable-in-minibuffer)
   └────
 
   You can also enable Corfu more generally for every minibuffer, as long
   as no other completion UI is active. If you use Mct or Vertico as your
   main minibuffer completion UI, the following snippet should yield the
   desired result.
 
   ┌────
   │ (defun corfu-enable-always-in-minibuffer ()
   │   "Enable Corfu in the minibuffer if Vertico/Mct are not active."
   │   (unless (or (bound-and-true-p mct--active)
   │ 	      (bound-and-true-p vertico--input))
   │     ;; (setq-local corfu-auto nil) Enable/disable auto completion
   │     (corfu-mode 1)))
   │ (add-hook 'minibuffer-setup-hook #'corfu-enable-always-in-minibuffer 1)
   └────
 
 
 2.3 Completing in the Eshell or Shell
 ─────────────────────────────────────
 
   When completing in the Eshell I recommend conservative local settings
   without auto completion, such that the completion behavior is similar
   to widely used shells like Bash, Zsh or Fish.
 
   ┌────
   │ (add-hook 'eshell-mode-hook
   │ 	  (lambda ()
   │ 	    (setq-local corfu-auto nil)
   │ 	    (corfu-mode)))
   └────
 
   When pressing `RET' while the Corfu popup is visible, the
   `corfu-insert' command will be invoked. This command does inserts the
   currently selected candidate, but it does not send the prompt input to
   Eshell or the comint process. Therefore you often have to press `RET'
   twice which feels like an unnecessary double confirmation. Fortunately
   it is easy to improve this! In my configuration I define the advice
   `corfu-send-shell' which sends the candidate after insertion.
 
   ┌────
   │ (defun corfu-send-shell (&rest _)
   │   "Send completion candidate when inside comint/eshell."
   │   (cond
   │    ((and (derived-mode-p 'eshell-mode) (fboundp 'eshell-send-input))
   │     (eshell-send-input))
   │    ((and (derived-mode-p 'comint-mode)  (fboundp 'comint-send-input))
   │     (comint-send-input))))
   │ 
   │ (advice-add #'corfu-insert :after #'corfu-send-shell)
   └────
 
   Shell completion uses the flexible `Pcomplete' mechanism internally,
   which allows you to program the completions per shell command. If you
   want to know more, look into this [blog post], which shows how to
   configure Pcomplete for git commands. I recommend the [pcmpl-args]
   package which extends Pcomplete with completion support and helpful
   annotation support for more commands. Similar to the Fish shell,
   pcmpl-args uses man page parsing and –help output parsing to
   dynamically generate completions. This package brings Eshell
   completion to another level!
 
   Unfortunately Pcomplete has a few technical issues, which we can work
   around with the [Cape] library (Completion at point extensions). Cape
   provides wrappers, which sanitize the Pcomplete function. Ideally the
   bugs in Pcomplete should be fixed upstream. *For now these two advices
   are strongly recommended to achieve a sane Eshell experience.*
 
   ┌────
   │ ;; Silence the pcomplete capf, no errors or messages!
   │ (advice-add 'pcomplete-completions-at-point :around #'cape-wrap-silent)
   │ 
   │ ;; Ensure that pcomplete does not write to the buffer
   │ ;; and behaves as a pure `completion-at-point-function'.
   │ (advice-add 'pcomplete-completions-at-point :around #'cape-wrap-purify)
   └────
 
 
 [blog post]
 <https://www.masteringemacs.org/article/pcomplete-context-sensitive-completion-emacs>
 
 [pcmpl-args] <https://github.com/JonWaltman/pcmpl-args.el>
 
 [Cape] <https://github.com/minad/cape>
 
 
 2.4 Orderless completion
 ────────────────────────
 
   [Orderless] is an advanced completion style that supports
   multi-component search filters separated by a configurable character
   (space, by default). Normally, entering characters like space which
   lie outside the completion region boundaries (words, typically) causes
   Corfu to quit. This behavior is helpful with auto-completion, which
   may pop-up when not desired, e.g. on entering a new variable
   name. Just keep typing and Corfu will get out of the way.
 
   But orderless search terms can contain arbitrary characters; they are
   also interpreted as regular expressions. To use orderless, set
   `corfu-separator' (a space, by default) to the primary character of
   your orderless component separator.
 
   Then, when a new orderless component is desired, use `M-SPC'
   (`corfu-insert-separator') to enter the /first/ component separator in
   the input, and arbitrary orderless search terms and new separators can
   be entered thereafter.
 
   To treat the entire input as Orderless input, you can set the
   customization option `corfu-quit-at-boundary=t'. This disables the
   predicate which checks if the current completion boundary has been
   left. In contrast, if you /always/ want to quit at the boundary,
   simply set `corfu-quit-at-boundary=nil'. By default
   `corfu-quit-at-boundary' is set to `separator' which quits at
   completion boundaries as long as no separator has been inserted with
   `corfu-insert-separator'.
 
   Finally, there exists the user option `corfu-quit-no-match' which is
   set to `separator' by default. With this setting Corfu stays alive as
   soon as you start advanced filtering with a `corfu-separator' even if
   there are no matches, for example due to a typo. As long as no
   separator character has been inserted with `corfu-insert-separator',
   Corfu will still quit if there are no matches. This ensures that the
   Corfu popup goes away quickly if completion is not possible.
 
   In the following we show two configurations, one which works best with
   auto completion and one which may work better with manual completion
   if you prefer to always use `SPC' to separate the Orderless
   components.
 
   ┌────
   │ ;; Auto completion example
   │ (use-package corfu
   │   :custom
   │   (corfu-auto t)          ;; Enable auto completion
   │   ;; (corfu-separator ?_) ;; Set to orderless separator, if not using space
   │   :bind
   │   ;; Another key binding can be used, such as S-SPC.
   │   ;; (:map corfu-map ("M-SPC" . corfu-insert-separator))
   │   :init
   │   (global-corfu-mode))
   │ 
   │ ;; Manual completion example
   │ (use-package corfu
   │   :custom
   │   ;; (corfu-separator ?_) ;; Set to orderless separator, if not using space
   │   :bind
   │   ;; Configure SPC for separator insertion
   │   (:map corfu-map ("SPC" . corfu-insert-separator))
   │   :init
   │   (global-corfu-mode))
   └────
 
 
 [Orderless] <https://github.com/oantolin/orderless>
 
 
 2.5 TAB-and-Go completion
 ─────────────────────────
 
   You may be interested in configuring Corfu in TAB-and-Go
   style. Pressing TAB moves to the next candidate and further input will
   then commit the selection.  Note that further input will not expand
   snippets or templates, which may not be desired but which leads
   overall to a more predictable behavior. In order to force snippet
   expansion, confirm a candidate explicitly with `RET'.
 
   ┌────
   │ (use-package corfu
   │   ;; TAB-and-Go customizations
   │   :custom
   │   (corfu-cycle t)             ;; Enable cycling for `corfu-next/previous'
   │   (corfu-preselect-first nil) ;; Disable candidate preselection
   │ 
   │   ;; Use TAB for cycling, default is `corfu-complete'.
   │   :bind
   │   (:map corfu-map
   │ 	("TAB" . corfu-next)
   │ 	([tab] . corfu-next)
   │ 	("S-TAB" . corfu-previous)
   │ 	([backtab] . corfu-previous))
   │ 
   │   :init
   │   (global-corfu-mode))
   └────
 
 
 2.6 Transfer completion to the minibuffer
 ─────────────────────────────────────────
 
   Sometimes it is useful to transfer the Corfu completion session to the
   minibuffer, since the minibuffer offers richer interaction
   features. In particular, [Embark] is available in the minibuffer, such
   that you can act on the candidates or export/collect the candidates to
   a separate buffer. Hopefully we can also add Corfu-support to Embark
   in the future, such that at least export/collect is possible directly
   from Corfu. But in my opinion having the ability to transfer the Corfu
   completion to the minibuffer is an even better feature, since further
   completion can be performed there.
 
   The command `corfu-move-to-minibuffer' is defined here in terms of
   `consult-completion-in-region', which uses the minibuffer completion
   UI via `completing-read'.
 
   ┌────
   │ (defun corfu-move-to-minibuffer ()
   │   (interactive)
   │   (let ((completion-extra-properties corfu--extra)
   │ 	completion-cycle-threshold completion-cycling)
   │     (apply #'consult-completion-in-region completion-in-region--data)))
   │ (define-key corfu-map "\M-m" #'corfu-move-to-minibuffer)
   └────
 
 
 [Embark] <https://github.com/oantolin/embark>
 
 
 3 Key bindings
 ══════════════
 
   Corfu uses a transient keymap `corfu-map' which is active while the
   popup is shown. The keymap defines the following remappings and
   bindings:
 
   • `beginning-of-buffer' -> `corfu-first'
   • `end-of-buffer' -> `corfu-last'
   • `scroll-down-command' -> `corfu-scroll-down'
   • `scroll-up-command' -> `corfu-scroll-up'
   • `next-line', `down', `M-n' -> `corfu-next'
   • `previous-line', `up', `M-p' -> `corfu-previous'
   • `completion-at-point', `TAB' -> `corfu-complete'
   • `RET' -> `corfu-insert'
   • `M-g' -> `corfu-info-location'
   • `M-h' -> `corfu-info-documentation'
   • `M-SPC' -> `corfu-insert-separator'
   • `C-g' -> `corfu-quit'
   • `keyboard-escape-quit' -> `corfu-reset'
 
 
 4 Extensions
 ════════════
 
   We maintain small extension packages to Corfu in this repository in
   the subdirectory [extensions/]. The extensions are installed together
   with Corfu if you pull the package from ELPA. The extensions are
   inactive by default and can be enabled manually if
   desired. Furthermore it is possible to install all of the files
   separately, both `corfu.el' and the `corfu-*.el' extensions. Currently
   the following extensions come with the Corfu ELPA package:
 
   • [corfu-history]: `corfu-history-mode' to remember selected
     candidates and to improve sorting.
   • [corfu-indexed]: `corfu-indexed-mode' to select indexed candidates
     with prefix arguments.
   • [corfu-info]: Actions to access the candidate location and
     documentation.
   • [corfu-quick]: Commands to select using Avy-style quick keys.
 
   See the Commentary of those files for configuration details.
 
 
 [extensions/] <https://github.com/minad/corfu/tree/main/extensions>
 
 [corfu-history]
 <https://github.com/minad/corfu/blob/main/extensions/corfu-history.el>
 
 [corfu-indexed]
 <https://github.com/minad/corfu/blob/main/extensions/corfu-indexed.el>
 
 [corfu-info]
 <https://github.com/minad/corfu/blob/main/extensions/corfu-info.el>
 
 [corfu-quick]
 <https://github.com/minad/corfu/blob/main/extensions/corfu-quick.el>
 
 
 5 Complementary packages
 ════════════════════════
 
   Corfu works well together with all packages providing code completion
   via the `completion-at-point-functions'. Many modes and packages
   already provide a Capf out of the box. Nevertheless you may want to
   look into complementary packages to enhance your setup.
 
   • [corfu-terminal]: The corfu-terminal package provides an
     overlay-based display for Corfu, such that you can use Corfu in
     terminal Emacs.
 
   • [corfu-doc]: The corfu-doc package displays the candidate
     documentation in a popup next to the Corfu popup, similar to
     `company-quickhelp'.
 
   • [Orderless]: Corfu supports completion styles, including the
     advanced [Orderless] completion style, where the filtering
     expressions are separated by spaces or another character (see
     `corfu-separator').
 
   • [Cape]: Additional Capf backends and `completion-in-region' commands
     are provided by the [Cape] package. Among others, the package
     supplies a file path and a Dabbrev completion backend. Cape provides
     the `cape-company-to-capf' adapter to reuse Company backends in
     Corfu. Furthermore the function `cape-super-capf' can merge multiple
     Capfs, such that the candidates of multiple Capfs are displayed
     together at the same time.
 
   • [kind-icon]: Icons are supported by Corfu via an external
     package. For example the [kind-icon] package provides beautifully
     styled SVG icons based on monochromatic icon sets like material
     design.
 
   • [pcmpl-args]: Extend the Eshell/Shell Pcomplete mechanism with
     support for many more commands. Similar to the Fish shell, Pcomplete
     uses man page parsing to dynamically retrieve the completions and
     helpful annotations. This package brings Eshell completions to
     another level!
 
   • [Tempel]: Tiny template/snippet package with templates in Lisp
     syntax, which can be used in conjunction with Corfu.
 
   • [Vertico]: You may also want to look into my [Vertico]
     package. Vertico is the minibuffer completion counterpart of Corfu.
 
 
 [corfu-terminal] <https://codeberg.org/akib/emacs-corfu-terminal>
 
 [corfu-doc] <https://github.com/galeo/corfu-doc>
 
 [Orderless] <https://github.com/oantolin/orderless>
 
 [Cape] <https://github.com/minad/cape>
 
 [kind-icon] <https://github.com/jdtsmith/kind-icon>
 
 [pcmpl-args] <https://github.com/JonWaltman/pcmpl-args.el>
 
 [Tempel] <https://github.com/minad/tempel>
 
 [Vertico] <https://github.com/minad/vertico>
 
 
 6 Alternatives
 ══════════════
 
   • [Company]: Company is a widely used and mature completion package,
     which implements a similar interaction model and popup UI as
     Corfu. While Corfu relies exclusively on the standard Emacs
     completion API (Capfs), Company defines its own API for the
     backends. Company includes its completion backends, which are
     incompatible with the Emacs completion infrastructure. As a result
     of this design, Company is a more complex package than
     Corfu. Company by default uses overlays for the popup in contrast to
     the child frames used by Corfu. Overall both packages work well, but
     Company integrates less tightly with Emacs. The `completion-styles'
     support is more limited and the `completion-at-point' command and
     the `completion-in-region' function do not invoke Company.
 
   • [Mct]: Protesilaos' Minibuffer Confines Transcended package supports
     both minibuffer completion and completion in region. It reuses the
     default completion UI for this purpose and installs a timer which
     live updates the completion buffer. The main advantage of Mct is
     that you work with a regular Emacs buffer instead of with a
     popup. You can take advantage of the usual Emacs commands to
     navigate in the completions buffer. On top, Mct enhances the
     movement such that you can quickly switch between the completions
     buffer and the minibuffer or the region which is being
     completed. Mct does not support timer-based auto completion, but the
     integration into Emacs is naturally tight. Note that Mct development
     is currently [discontinued] due to recent changes of the default
     completion UI on the Emacs master branch.
 
   • [consult-completion-in-region]: The Consult package provides the
     function `consult-completion-in-region' which can be set as
     `completion-in-region-function' such that it handles
     `completion-at-point'. The function works by transferring the
     in-buffer completion to the minibuffer. In the minibuffer, the
     minibuffer completion UI, for example [Vertico] takes over. If you
     prefer to perform all your completions in the minibuffer
     `consult-completion-in-region' is your best option.
 
 
 [Company] <https://github.com/company-mode/company-mode>
 
 [Mct] <https://git.sr.ht/~protesilaos/mct>
 
 [discontinued]
 <https://protesilaos.com/codelog/2022-04-14-emacs-discontinue-mct/>
 
 [consult-completion-in-region] <https://github.com/minad/consult>
 
 [Vertico] <https://github.com/minad/vertico>
 
 
 7 Contributions
 ═══════════════
 
   Since this package is part of [GNU ELPA] contributions require a
   copyright assignment to the FSF.
 
 
 [GNU ELPA] <http://elpa.gnu.org/packages/corfu.html>