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consult.el
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;;; consult.el --- Consulting completing-read -*- lexical-binding: t -*-
;; Copyright (C) 2021-2024 Free Software Foundation, Inc.
;; Author: Daniel Mendler and Consult contributors
;; Maintainer: Daniel Mendler <mail@daniel-mendler.de>
;; Created: 2020
;; Version: 1.3
;; Package-Requires: ((emacs "27.1") (compat "29.1.4.4"))
;; Homepage: https://github.com/minad/consult
;; Keywords: matching, files, completion
;; This file is part of GNU Emacs.
;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Consult implements a set of `consult-<thing>' commands, which aim to
;; improve the way you use Emacs. The commands are founded on
;; `completing-read', which selects from a list of candidate strings.
;; Consult provides an enhanced buffer switcher `consult-buffer' and
;; search and navigation commands like `consult-imenu' and
;; `consult-line'. Searching through multiple files is supported by the
;; asynchronous `consult-grep' command. Many Consult commands support
;; previewing candidates. If a candidate is selected in the completion
;; view, the buffer shows the candidate immediately.
;; The Consult commands are compatible with multiple completion systems
;; based on the Emacs `completing-read' API, including the default
;; completion system, Vertico, Mct and Icomplete.
;; See the README for an overview of the available Consult commands and
;; the documentation of the configuration and installation of the
;; package.
;; The full list of contributors can be found in the acknowledgments
;; section of the README.
;;; Code:
(eval-when-compile
(require 'cl-lib)
(require 'subr-x))
(require 'compat)
(require 'bookmark)
(defgroup consult nil
"Consulting `completing-read'."
:link '(info-link :tag "Info Manual" "(consult)")
:link '(url-link :tag "Homepage" "https://github.com/minad/consult")
:link '(emacs-library-link :tag "Library Source" "consult.el")
:group 'files
:group 'outlines
:group 'minibuffer
:prefix "consult-")
;;;; Customization
(defcustom consult-narrow-key nil
"Prefix key for narrowing during completion.
Good choices for this key are \"<\" and \"C-+\" for example. The
key must be a string accepted by `key-valid-p'."
:type '(choice key (const :tag "None" nil)))
(defcustom consult-widen-key nil
"Key used for widening during completion.
If this key is unset, defaults to twice the `consult-narrow-key'.
The key must be a string accepted by `key-valid-p'."
:type '(choice key (const :tag "None" nil)))
(defcustom consult-project-function
#'consult--default-project-function
"Function which returns project root directory.
The function takes one boolean argument MAY-PROMPT. If
MAY-PROMPT is non-nil, the function may ask the prompt the user
for a project directory. The root directory is used by
`consult-buffer' and `consult-grep'."
:type `(choice
(const :tag "Default project function" ,#'consult--default-project-function)
(function :tag "Custom function")
(const :tag "No project integration" nil)))
(defcustom consult-async-refresh-delay 0.2
"Refreshing delay of the completion UI for asynchronous commands.
The completion UI is only updated every
`consult-async-refresh-delay' seconds. This applies to
asynchronous commands like for example `consult-grep'."
:type '(float :tag "Delay in seconds"))
(defcustom consult-async-input-throttle 0.5
"Input throttle for asynchronous commands.
The asynchronous process is started only every
`consult-async-input-throttle' seconds. This applies to asynchronous
commands, e.g., `consult-grep'."
:type '(float :tag "Delay in seconds"))
(defcustom consult-async-input-debounce 0.2
"Input debounce for asynchronous commands.
The asynchronous process is started only when there has not been new
input for `consult-async-input-debounce' seconds. This applies to
asynchronous commands, e.g., `consult-grep'."
:type '(float :tag "Delay in seconds"))
(defcustom consult-async-min-input 3
"Minimum number of characters needed, before asynchronous process is called.
This applies to asynchronous commands, e.g., `consult-grep'."
:type '(natnum :tag "Number of characters"))
(defcustom consult-async-split-style 'perl
"Async splitting style, see `consult-async-split-styles-alist'."
:type '(choice (const :tag "No splitting" nil)
(const :tag "Comma" comma)
(const :tag "Semicolon" semicolon)
(const :tag "Perl" perl)))
(defcustom consult-async-split-styles-alist
`((nil :function ,#'consult--split-nil)
(comma :separator ?, :function ,#'consult--split-separator)
(semicolon :separator ?\; :function ,#'consult--split-separator)
(perl :initial "#" :function ,#'consult--split-perl))
"Async splitting styles."
:type '(alist :key-type symbol :value-type plist))
(defcustom consult-mode-histories
'((eshell-mode eshell-history-ring eshell-history-index eshell-bol)
(comint-mode comint-input-ring comint-input-ring-index comint-bol)
(term-mode term-input-ring term-input-ring-index term-bol))
"Alist of mode histories (mode history index bol).
The histories can be rings or lists. Index, if provided, is a
variable to set to the index of the selection within the ring or
list. Bol, if provided is a function which jumps to the beginning
of the line after the prompt."
:type '(alist :key-type symbol
:value-type (group :tag "Include Index"
(symbol :tag "List/Ring")
(symbol :tag "Index Variable")
(symbol :tag "Bol Function"))))
(defcustom consult-themes nil
"List of themes (symbols or regexps) to be presented for selection.
nil shows all `custom-available-themes'."
:type '(repeat (choice symbol regexp)))
(defcustom consult-after-jump-hook (list #'recenter)
"Function called after jumping to a location.
Commonly used functions for this hook are `recenter' and
`reposition-window'. You may want to add a function which pulses
the current line, e.g., `pulse-momentary-highlight-one-line' is
supported on Emacs 28 and newer. The hook called during preview
and for the jump after selection."
:type 'hook)
(defcustom consult-line-start-from-top nil
"Start search from the top if non-nil.
Otherwise start the search at the current line and wrap around."
:type 'boolean)
(defcustom consult-point-placement 'match-beginning
"Where to leave point when jumping to a match.
This setting affects the command `consult-line' and the `consult-grep' variants."
:type '(choice (const :tag "Beginning of the line" line-beginning)
(const :tag "Beginning of the match" match-beginning)
(const :tag "End of the match" match-end)))
(defcustom consult-line-numbers-widen t
"Show absolute line numbers when narrowing is active.
See also `display-line-numbers-widen'."
:type 'boolean)
(defcustom consult-goto-line-numbers t
"Show line numbers for `consult-goto-line'."
:type 'boolean)
(defcustom consult-fontify-preserve t
"Preserve fontification for line-based commands."
:type 'boolean)
(defcustom consult-fontify-max-size 1048576
"Buffers larger than this byte limit are not fontified.
This is necessary in order to prevent a large startup time
for navigation commands like `consult-line'."
:type '(natnum :tag "Buffer size in bytes"))
(defcustom consult-buffer-filter
'("\\` "
"\\`\\*Completions\\*\\'"
"\\`\\*Flymake log\\*\\'"
"\\`\\*Semantic SymRef\\*\\'"
"\\`\\*tramp/.*\\*\\'")
"Filter regexps for `consult-buffer'.
The default setting is to filter ephemeral buffer names beginning
with a space character, the *Completions* buffer and a few log
buffers. The regular expressions are matched case sensitively."
:type '(repeat regexp))
(defcustom consult-buffer-sources
'(consult--source-hidden-buffer
consult--source-modified-buffer
consult--source-buffer
consult--source-recent-file
consult--source-file-register
consult--source-bookmark
consult--source-project-buffer-hidden
consult--source-project-recent-file-hidden)
"Sources used by `consult-buffer'.
See also `consult-project-buffer-sources'.
See `consult--multi' for a description of the source data structure."
:type '(repeat symbol))
(defcustom consult-project-buffer-sources
'(consult--source-project-buffer
consult--source-project-recent-file)
"Sources used by `consult-project-buffer'.
See also `consult-buffer-sources'.
See `consult--multi' for a description of the source data structure."
:type '(repeat symbol))
(defcustom consult-mode-command-filter
'(;; Filter commands
"-mode\\'" "--"
;; Filter whole features
simple mwheel time so-long recentf tab-bar tab-line)
"Filter commands for `consult-mode-command'."
:type '(repeat (choice symbol regexp)))
(defcustom consult-grep-max-columns 300
"Maximal number of columns of grep output."
:type 'natnum)
(defconst consult--grep-match-regexp
"\\`\\(?:\\./\\)?\\([^\n\0]+\\)\0\\([0-9]+\\)\\([-:\0]\\)"
"Regexp used to match file and line of grep output.")
(defcustom consult-grep-args
'("grep" (consult--grep-exclude-args)
"--null --line-buffered --color=never --ignore-case\
--with-filename --line-number -I -r")
"Command line arguments for grep, see `consult-grep'.
The dynamically computed arguments are appended.
Can be either a string, or a list of strings or expressions."
:type '(choice string (repeat (choice string sexp))))
(defcustom consult-git-grep-args
"git --no-pager grep --null --color=never --ignore-case\
--extended-regexp --line-number -I"
"Command line arguments for git-grep, see `consult-git-grep'.
The dynamically computed arguments are appended.
Can be either a string, or a list of strings or expressions."
:type '(choice string (repeat (choice string sexp))))
(defcustom consult-ripgrep-args
"rg --null --line-buffered --color=never --max-columns=1000 --path-separator /\
--smart-case --no-heading --with-filename --line-number --search-zip"
"Command line arguments for ripgrep, see `consult-ripgrep'.
The dynamically computed arguments are appended.
Can be either a string, or a list of strings or expressions."
:type '(choice string (repeat (choice string sexp))))
(defcustom consult-find-args
"find . -not ( -iwholename */.[a-z]* -prune )"
"Command line arguments for find, see `consult-find'.
The dynamically computed arguments are appended.
Can be either a string, or a list of strings or expressions."
:type '(choice string (repeat (choice string sexp))))
(defcustom consult-fd-args
'((if (executable-find "fdfind" 'remote) "fdfind" "fd")
"--full-path --color=never")
"Command line arguments for fd, see `consult-fd'.
The dynamically computed arguments are appended.
Can be either a string, or a list of strings or expressions."
:type '(choice string (repeat (choice string sexp))))
(defcustom consult-locate-args
"locate --ignore-case" ;; --existing not supported by Debian plocate
"Command line arguments for locate, see `consult-locate'.
The dynamically computed arguments are appended.
Can be either a string, or a list of strings or expressions."
:type '(choice string (repeat (choice string sexp))))
(defcustom consult-man-args
"man -k"
"Command line arguments for man, see `consult-man'.
The dynamically computed arguments are appended.
Can be either a string, or a list of strings or expressions."
:type '(choice string (repeat (choice string sexp))))
(defcustom consult-preview-key 'any
"Preview trigger keys, can be nil, `any', a single key or a list of keys.
Debouncing can be specified via the `:debounce' attribute. The
individual keys must be strings accepted by `key-valid-p'."
:type '(choice (const :tag "Any key" any)
(list :tag "Debounced"
(const :debounce)
(float :tag "Seconds" 0.1)
(const any))
(const :tag "No preview" nil)
(key :tag "Key")
(repeat :tag "List of keys" key)))
(defcustom consult-preview-partial-size 1048576
"Files larger than this byte limit are previewed partially."
:type '(natnum :tag "File size in bytes"))
(defcustom consult-preview-partial-chunk 102400
"Partial preview chunk size in bytes.
If a file is larger than `consult-preview-partial-size' only the
chunk from the beginning of the file is previewed."
:type '(natnum :tag "Chunk size in bytes"))
(defcustom consult-preview-max-count 10
"Number of file buffers to keep open temporarily during preview."
:type '(natnum :tag "Number of buffers"))
(defcustom consult-preview-excluded-files
'("\\`/[^/|:]+:") ;; Do not preview remote files
"List of regexps matched against names of files, which are not previewed."
:type '(repeat regexp))
(defcustom consult-preview-allowed-hooks
'(global-font-lock-mode-check-buffers
save-place-find-file-hook)
"List of `find-file' hooks, which should be executed during file preview."
:type '(repeat symbol))
(defcustom consult-preview-variables
'((inhibit-message . t)
(enable-dir-local-variables . nil)
(enable-local-variables . :safe)
(non-essential . t)
(delay-mode-hooks . t))
"Variables which are bound for file preview."
:type '(alist :key-type symbol))
(defcustom consult-bookmark-narrow
`((?f "File" bookmark-default-handler)
(?h "Help" help-bookmark-jump Info-bookmark-jump
Man-bookmark-jump woman-bookmark-jump)
(?p "Picture" image-bookmark-jump)
(?d "Docview" doc-view-bookmark-jump)
(?m "Mail" gnus-summary-bookmark-jump)
(?s "Eshell" eshell-bookmark-jump)
(?w "Web" eww-bookmark-jump xwidget-webkit-bookmark-jump-handler)
(?v "VC Directory" vc-dir-bookmark-jump)
(nil "Other"))
"Bookmark narrowing configuration.
Each element of the list must have the form (char name handlers...)."
:type '(alist :key-type character :value-type (cons string (repeat function))))
(defcustom consult-yank-rotate
(if (boundp 'yank-from-kill-ring-rotate)
yank-from-kill-ring-rotate
t)
"Rotate the `kill-ring' in the `consult-yank' commands."
:type 'boolean)
;;;; Faces
(defgroup consult-faces nil
"Faces used by Consult."
:group 'consult
:group 'faces)
(defface consult-preview-line
'((t :inherit consult-preview-insertion :extend t))
"Face used for line previews.")
(defface consult-highlight-match
'((t :inherit match))
"Face used to highlight matches in the completion candidates.
Used for example by `consult-grep'.")
(defface consult-highlight-mark
'((t :inherit consult-highlight-match))
"Face used for mark positions in completion candidates.
Used for example by `consult-mark'. The face should be different
than the `cursor' face to avoid confusion.")
(defface consult-preview-match
'((t :inherit isearch))
"Face used for match previews, e.g., in `consult-line'.")
(defface consult-preview-insertion
'((t :inherit region))
"Face used for previews of text to be inserted.
Used by `consult-completion-in-region', `consult-yank' and `consult-history'.")
(defface consult-narrow-indicator
'((t :inherit warning))
"Face used for the narrowing indicator.")
(defface consult-async-running
'((t :inherit consult-narrow-indicator))
"Face used if asynchronous process is running.")
(defface consult-async-finished
'((t :inherit success))
"Face used if asynchronous process has finished.")
(defface consult-async-failed
'((t :inherit error))
"Face used if asynchronous process has failed.")
(defface consult-async-split
'((t :inherit font-lock-negation-char-face))
"Face used to highlight punctuation character.")
(defface consult-help
'((t :inherit shadow))
"Face used to highlight help, e.g., in `consult-register-store'.")
(defface consult-key
'((t :inherit font-lock-keyword-face))
"Face used to highlight keys, e.g., in `consult-register'.")
(defface consult-line-number
'((t :inherit consult-key))
"Face used to highlight location line in `consult-global-mark'.")
(defface consult-file
'((t :inherit font-lock-function-name-face))
"Face used to highlight files in `consult-buffer'.")
(defface consult-grep-context
'((t :inherit shadow))
"Face used to highlight grep context in `consult-grep'.")
(defface consult-bookmark
'((t :inherit font-lock-constant-face))
"Face used to highlight bookmarks in `consult-buffer'.")
(defface consult-buffer
'((t))
"Face used to highlight buffers in `consult-buffer'.")
(defface consult-line-number-prefix
'((t :inherit line-number))
"Face used to highlight line number prefixes.")
(defface consult-line-number-wrapped
'((t :inherit consult-line-number-prefix :inherit font-lock-warning-face))
"Face used to highlight line number prefixes after wrap around.")
(defface consult-separator
'((((class color) (min-colors 88) (background light))
:foreground "#ccc")
(((class color) (min-colors 88) (background dark))
:foreground "#333"))
"Face used for thin line separators in `consult-register-window'.")
;;;; Input history variables
(defvar consult--path-history nil)
(defvar consult--grep-history nil)
(defvar consult--find-history nil)
(defvar consult--man-history nil)
(defvar consult--line-history nil)
(defvar consult--line-multi-history nil)
(defvar consult--theme-history nil)
(defvar consult--minor-mode-menu-history nil)
(defvar consult--buffer-history nil)
;;;; Internal variables
(defvar consult--regexp-compiler
#'consult--default-regexp-compiler
"Regular expression compiler used by `consult-grep' and other commands.
The function must return a list of regular expressions and a highlighter
function.")
(defvar consult--customize-alist
;; Disable preview in frames, since `consult--jump-preview' does not properly
;; clean up. See gh:minad/consult#593. This issue should better be fixed in
;; `consult--jump-preview'.
`((,#'consult-buffer-other-frame :preview-key nil)
(,#'consult-buffer-other-tab :preview-key nil))
"Command configuration alist for fine-grained configuration.
Each element of the list must have the form (command-name plist...). The
options set here will be evaluated and passed to `consult--read', when
called from the corresponding command. Note that the options depend on
the private `consult--read' API and should not be considered as stable
as the public API.")
(defvar consult--buffer-display #'switch-to-buffer
"Buffer display function.")
(defvar consult--completion-candidate-hook
(list #'consult--default-completion-minibuffer-candidate
#'consult--default-completion-list-candidate)
"Get candidate from completion system.")
(defvar consult--completion-refresh-hook nil
"Refresh completion system.")
(defvar-local consult--preview-function nil
"Minibuffer-local variable which exposes the current preview function.
This function can be called by custom completion systems from
outside the minibuffer.")
(defvar consult--annotate-align-step 10
"Round candidate width.")
(defvar consult--annotate-align-width 0
"Maximum candidate width used for annotation alignment.")
(defconst consult--tofu-char #x200000
"Special character used to encode line prefixes for disambiguation.
We use invalid characters outside the Unicode range.")
(defconst consult--tofu-range #x100000
"Special character range.")
(defvar-local consult--narrow nil
"Current narrowing key.")
(defvar-local consult--narrow-keys nil
"Narrowing prefixes of the current completion.")
(defvar-local consult--narrow-predicate nil
"Narrowing predicate of the current completion.")
(defvar-local consult--narrow-overlay nil
"Narrowing indicator overlay.")
(defvar consult--gc-threshold (* 64 1024 1024)
"Large GC threshold for temporary increase.")
(defvar consult--gc-percentage 0.5
"Large GC percentage for temporary increase.")
(defvar consult--process-chunk (* 1024 1024)
"Increase process output chunk size.")
(defvar consult--async-log
" *consult-async*"
"Buffer for async logging output used by `consult--async-process'.")
(defvar-local consult--focus-lines-overlays nil
"Overlays used by `consult-focus-lines'.")
(defvar-local consult--org-fold-regions nil
"Stored regions for the org-fold API.")
;;;; Miscellaneous helper functions
(defun consult--key-parse (key)
"Parse KEY or signal error if invalid."
(unless (key-valid-p key)
(error "%S is not a valid key definition; see `key-valid-p'" key))
(key-parse key))
(defun consult--in-buffer (fun &optional buffer)
"Ensure that FUN is executed inside BUFFER."
(unless buffer (setq buffer (current-buffer)))
(lambda (&rest args)
(with-current-buffer buffer
(apply fun args))))
(defun consult--completion-table-in-buffer (table &optional buffer)
"Ensure that completion TABLE is executed inside BUFFER."
(if (functionp table)
(consult--in-buffer
(lambda (str pred action)
(let ((result (funcall table str pred action)))
(pcase action
('metadata
(setq result
(mapcar
(lambda (x)
(if (and (string-suffix-p (symbol-name (car-safe x)) "-function") (cdr x))
(cons (car x) (consult--in-buffer (cdr x)))
x))
result)))
((and 'completion--unquote (guard (functionp (cadr result))))
(cl-callf consult--in-buffer (cadr result) buffer)
(cl-callf consult--in-buffer (cadddr result) buffer)))
result))
buffer)
table))
(defun consult--build-args (arg)
"Return ARG as a flat list of split strings.
Turn ARG into a list, and for each element either:
- split it if it a string.
- eval it if it is an expression."
(seq-mapcat (lambda (x)
(if (stringp x)
(split-string-and-unquote x)
(ensure-list (eval x 'lexical))))
(ensure-list arg)))
(defun consult--command-split (str)
"Return command argument and options list given input STR."
(save-match-data
(let ((opts (when (string-match " +--\\( +\\|\\'\\)" str)
(prog1 (substring str (match-end 0))
(setq str (substring str 0 (match-beginning 0)))))))
;; split-string-and-unquote fails if the quotes are invalid. Ignore it.
(cons str (and opts (ignore-errors (split-string-and-unquote opts)))))))
(defmacro consult--keep! (list form)
"Evaluate FORM for every element of LIST and keep the non-nil results."
(declare (indent 1))
(cl-with-gensyms (head prev result)
`(let* ((,head (cons nil ,list))
(,prev ,head))
(while (cdr ,prev)
(if-let (,result (let ((it (cadr ,prev))) ,form))
(progn
(pop ,prev)
(setcar ,prev ,result))
(setcdr ,prev (cddr ,prev))))
(setq ,list (cdr ,head))
nil)))
;; Upstream bug#46326, Consult issue gh:minad/consult#193.
(defmacro consult--minibuffer-with-setup-hook (fun &rest body)
"Variant of `minibuffer-with-setup-hook' using a symbol and `fset'.
This macro is only needed to prevent memory leaking issues with
the upstream `minibuffer-with-setup-hook' macro.
FUN is the hook function and BODY opens the minibuffer."
(declare (indent 1) (debug t))
(let ((hook (gensym "hook"))
(append))
(when (eq (car-safe fun) :append)
(setq append '(t) fun (cadr fun)))
`(let ((,hook (make-symbol "consult--minibuffer-setup-hook")))
(fset ,hook (lambda ()
(remove-hook 'minibuffer-setup-hook ,hook)
(funcall ,fun)))
(unwind-protect
(progn
(add-hook 'minibuffer-setup-hook ,hook ,@append)
,@body)
(remove-hook 'minibuffer-setup-hook ,hook)))))
(defun consult--completion-filter (pattern cands category _highlight)
"Filter CANDS with PATTERN.
CATEGORY is the completion category, used to find the completion style via
`completion-category-defaults' and `completion-category-overrides'.
HIGHLIGHT must be non-nil if the resulting strings should be highlighted."
;; completion-all-completions returns an improper list
;; where the last link is not necessarily nil.
(nconc (completion-all-completions pattern cands nil (length pattern)
`(metadata (category . ,category)))
nil))
(defun consult--completion-filter-complement (pattern cands category _highlight)
"Filter CANDS with complement of PATTERN.
See `consult--completion-filter' for the arguments CATEGORY and HIGHLIGHT."
(let ((ht (consult--string-hash (consult--completion-filter pattern cands category nil))))
(seq-remove (lambda (x) (gethash x ht)) cands)))
(defun consult--completion-filter-dispatch (pattern cands category highlight)
"Filter CANDS with PATTERN with optional complement.
Either using `consult--completion-filter' or
`consult--completion-filter-complement', depending on if the pattern starts
with a bang. See `consult--completion-filter' for the arguments CATEGORY and
HIGHLIGHT."
(cond
((string-match-p "\\`!? ?\\'" pattern) cands) ;; empty pattern
((string-prefix-p "! " pattern) (consult--completion-filter-complement
(substring pattern 2) cands category nil))
(t (consult--completion-filter pattern cands category highlight))))
(defmacro consult--each-line (beg end &rest body)
"Iterate over each line.
The line beginning/ending BEG/END is bound in BODY."
(declare (indent 2))
(cl-with-gensyms (max)
`(save-excursion
(let ((,beg (point-min)) (,max (point-max)) end)
(while (< ,beg ,max)
(goto-char ,beg)
(setq ,end (pos-eol))
,@body
(setq ,beg (1+ ,end)))))))
(defun consult--display-width (string)
"Compute width of STRING taking display and invisible properties into account."
(let ((pos 0) (width 0) (end (length string)))
(while (< pos end)
(let ((nextd (next-single-property-change pos 'display string end))
(display (get-text-property pos 'display string)))
(if (stringp display)
(setq width (+ width (string-width display))
pos nextd)
(while (< pos nextd)
(let ((nexti (next-single-property-change pos 'invisible string nextd)))
(unless (get-text-property pos 'invisible string)
(setq width (+ width (compat-call string-width string pos nexti))))
(setq pos nexti))))))
width))
(defun consult--string-hash (strings)
"Create hash table from STRINGS."
(let ((ht (make-hash-table :test #'equal :size (length strings))))
(dolist (str strings)
(puthash str t ht))
ht))
(defmacro consult--local-let (binds &rest body)
"Buffer local let BINDS of dynamic variables in BODY."
(declare (indent 1))
(let ((buffer (gensym "buffer"))
(local (mapcar (lambda (x) (cons (gensym "local") (car x))) binds)))
`(let ((,buffer (current-buffer))
,@(mapcar (lambda (x) `(,(car x) (local-variable-p ',(cdr x)))) local))
(unwind-protect
(progn
,@(mapcar (lambda (x) `(make-local-variable ',(car x))) binds)
(let (,@binds)
,@body))
(when (buffer-live-p ,buffer)
(with-current-buffer ,buffer
,@(mapcar (lambda (x)
`(unless ,(car x)
(kill-local-variable ',(cdr x))))
local)))))))
(defvar consult--fast-abbreviate-file-name nil)
(defun consult--fast-abbreviate-file-name (name)
"Return abbreviate file NAME.
This function is a pure variant of `abbreviate-file-name', which
does not access the file system. This is important if we require
that the operation is fast, even for remote paths or paths on
network file systems."
(save-match-data
(let (case-fold-search) ;; Assume that file system is case sensitive.
(setq name (directory-abbrev-apply name))
(if (string-match (with-memoization consult--fast-abbreviate-file-name
(directory-abbrev-make-regexp (expand-file-name "~")))
name)
(concat "~" (substring name (match-beginning 1)))
name))))
(defun consult--left-truncate-file (file)
"Return abbreviated file name of FILE for use in `completing-read' prompt."
(save-match-data
(let ((afile (abbreviate-file-name file)))
(if (string-match "/\\([^/]+\\)/\\([^/]+/?\\)\\'" afile)
(propertize (format "…/%s/%s" (match-string 1 afile) (match-string 2 afile))
'help-echo afile)
afile))))
(defun consult--directory-prompt (prompt dir)
"Return prompt, paths and default directory.
PROMPT is the prompt prefix. The directory is appended to the
prompt prefix. For projects only the project name is shown. The
`default-directory' is not shown. Other directories are
abbreviated and only the last two path components are shown.
If DIR is a string, it is returned as default directory. If DIR
is a list of strings, the list is returned as search paths. If
DIR is nil the `consult-project-function' is tried to retrieve
the default directory. If no project is found the
`default-directory' is returned as is. Otherwise the user is
asked for the directories or files to search via
`completing-read-multiple'."
(let* ((paths nil)
(dir
(pcase dir
((pred stringp) dir)
('nil (or (consult--project-root) default-directory))
(_
(pcase (if (stringp (car-safe dir))
dir
;; Preserve this-command across `completing-read-multiple' call,
;; such that `consult-customize' continues to work.
(let ((this-command this-command)
(def (abbreviate-file-name default-directory))
;; TODO: `minibuffer-completing-file-name' is
;; mostly deprecated, but still in use. Packages
;; should instead use the completion metadata.
(minibuffer-completing-file-name t)
(ignore-case read-file-name-completion-ignore-case))
(consult--minibuffer-with-setup-hook
(lambda ()
(setq-local completion-ignore-case ignore-case)
(set-syntax-table minibuffer-local-filename-syntax))
(completing-read-multiple "Directories or files: "
#'completion-file-name-table
nil t def 'consult--path-history def))))
((and `(,p) (guard (file-directory-p p))) p)
(ps (setq paths (mapcar (lambda (p)
(file-relative-name (expand-file-name p)))
ps))
default-directory)))))
(edir (file-name-as-directory (expand-file-name dir)))
(pdir (let ((default-directory edir))
;; Bind default-directory in order to find the project
(consult--project-root))))
(list
(format "%s (%s): " prompt
(pcase paths
(`(,p) (consult--left-truncate-file p))
(`(,p . ,_)
(format "%d paths, %s, …" (length paths) (consult--left-truncate-file p)))
((guard (equal edir pdir)) (concat "Project " (consult--project-name pdir)))
(_ (consult--left-truncate-file edir))))
(or paths '("."))
edir)))
(defun consult--default-project-function (may-prompt)
"Return project root directory.
When no project is found and MAY-PROMPT is non-nil ask the user."
(when-let (proj (project-current may-prompt))
(cond
((fboundp 'project-root) (project-root proj))
((fboundp 'project-roots) (car (project-roots proj))))))
(defun consult--project-root (&optional may-prompt)
"Return project root as absolute path.
When no project is found and MAY-PROMPT is non-nil ask the user."
;; Preserve this-command across project selection,
;; such that `consult-customize' continues to work.
(let ((this-command this-command))
(when-let (root (and consult-project-function
(funcall consult-project-function may-prompt)))
(expand-file-name root))))
(defun consult--project-name (dir)
"Return the project name for DIR."
(if (string-match "/\\([^/]+\\)/\\'" dir)
(propertize (match-string 1 dir) 'help-echo (abbreviate-file-name dir))
dir))
(defun consult--format-file-line-match (file line match)
"Format string FILE:LINE:MATCH with faces."
(setq line (number-to-string line)
match (concat file ":" line ":" match)
file (length file))
(put-text-property 0 file 'face 'consult-file match)
(put-text-property (1+ file) (+ 1 file (length line)) 'face 'consult-line-number match)
match)
(defun consult--make-overlay (beg end &rest props)
"Make consult overlay between BEG and END with PROPS."
(let ((ov (make-overlay beg end)))
(while props
(overlay-put ov (car props) (cadr props))
(setq props (cddr props)))
ov))
(defun consult--remove-dups (list)
"Remove duplicate strings from LIST."
(delete-dups (copy-sequence list)))
(defsubst consult--in-range-p (pos)
"Return t if position POS lies in range `point-min' to `point-max'."
(<= (point-min) pos (point-max)))
(defun consult--completion-window-p ()
"Return non-nil if the selected window belongs to the completion UI."
(or (eq (selected-window) (active-minibuffer-window))
(eq #'completion-list-mode (buffer-local-value 'major-mode (window-buffer)))))
(defun consult--original-window ()
"Return window which was just selected just before the minibuffer was entered.
In contrast to `minibuffer-selected-window' never return nil and
always return an appropriate non-minibuffer window."
(or (minibuffer-selected-window)
(if (window-minibuffer-p (selected-window))
(next-window)
(selected-window))))
(defun consult--forbid-minibuffer ()
"Raise an error if executed from the minibuffer."
(when (minibufferp)
(user-error "`%s' called inside the minibuffer" this-command)))
(defun consult--require-minibuffer ()
"Raise an error if executed outside the minibuffer."
(unless (minibufferp)
(user-error "`%s' must be called inside the minibuffer" this-command)))
(defun consult--fontify-all ()
"Ensure that the whole buffer is fontified."
;; Font-locking is lazy, i.e., if a line has not been looked at yet, the line
;; is not font-locked. We would observe this if consulting an unfontified
;; line. Therefore we have to enforce font-locking now, which is slow. In
;; order to prevent is hang-up we check the buffer size against
;; `consult-fontify-max-size'.
(when (and consult-fontify-preserve jit-lock-mode
(< (buffer-size) consult-fontify-max-size))
(jit-lock-fontify-now)))
(defun consult--fontify-region (start end)
"Ensure that region between START and END is fontified."
(when (and consult-fontify-preserve jit-lock-mode)
(jit-lock-fontify-now start end)))
(defmacro consult--with-increased-gc (&rest body)
"Temporarily increase the GC limit in BODY to optimize for throughput."
(cl-with-gensyms (overwrite)
`(let* ((,overwrite (> consult--gc-threshold gc-cons-threshold))
(gc-cons-threshold (if ,overwrite consult--gc-threshold gc-cons-threshold))
(gc-cons-percentage (if ,overwrite consult--gc-percentage gc-cons-percentage)))
,@body)))
(defmacro consult--slow-operation (message &rest body)
"Show delayed MESSAGE if BODY takes too long.
Also temporarily increase the GC limit via `consult--with-increased-gc'."
(declare (indent 1))
`(let (set-message-function) ;; bug#63253: Broken `with-delayed-message'
(with-delayed-message (1 ,message)
(consult--with-increased-gc
,@body))))
(defun consult--count-lines (pos)
"Move to position POS and return number of lines."
(let ((line 1))
(while (< (point) pos)
(forward-line)
(when (<= (point) pos)
(cl-incf line)))
(goto-char pos)
line))
(defun consult--marker-from-line-column (buffer line column)
"Get marker in BUFFER from LINE and COLUMN."
(when (buffer-live-p buffer)
(with-current-buffer buffer
(save-excursion
(without-restriction
(goto-char (point-min))
;; Location data might be invalid by now!
(ignore-errors
(forward-line (1- line))
(goto-char (min (+ (point) column) (pos-eol))))
(point-marker))))))
(defun consult--line-prefix (&optional curr-line)
"Annotate `consult-location' candidates with line numbers.
CURR-LINE is the current line number."
(setq curr-line (or curr-line -1))
(let* ((width (length (number-to-string (line-number-at-pos
(point-max)
consult-line-numbers-widen))))
(before (format #("%%%dd " 0 6 (face consult-line-number-wrapped)) width))
(after (format #("%%%dd " 0 6 (face consult-line-number-prefix)) width)))
(lambda (cand)
(let ((line (cdr (get-text-property 0 'consult-location cand))))
(list cand (format (if (< line curr-line) before after) line) "")))))
(defsubst consult--location-candidate (cand marker line tofu &rest props)
"Add MARKER and LINE as `consult-location' text property to CAND.
Furthermore add the additional text properties PROPS, and append
TOFU suffix for disambiguation."
(setq cand (concat cand (consult--tofu-encode tofu)))
(add-text-properties 0 1 `(consult-location (,marker . ,line) ,@props) cand)
cand)
;; There is a similar variable `yank-excluded-properties'. Unfortunately
;; we cannot use it here since it excludes too much (e.g., invisible)
;; and at the same time not enough (e.g., cursor-sensor-functions).
(defconst consult--remove-text-properties
'(category cursor cursor-intangible cursor-sensor-functions field follow-link
fontified front-sticky help-echo insert-behind-hooks insert-in-front-hooks
intangible keymap local-map modification-hooks mouse-face pointer read-only
rear-nonsticky yank-handler)
"List of text properties to remove from buffer strings.")
(defsubst consult--buffer-substring (beg end &optional fontify)
"Return buffer substring between BEG and END.
If FONTIFY and `consult-fontify-preserve' are non-nil, first ensure that the
region has been fontified."
(if consult-fontify-preserve
(let (str)
(when fontify (consult--fontify-region beg end))
(setq str (buffer-substring beg end))