;; Author: Oleh Krehel <ohwoeowho@gmail.com>
;; URL: https://github.com/abo-abo/swiper
-;; Version: 0.1.0
+;; Version: 0.2.3
;; Package-Requires: ((emacs "24.1"))
;; Keywords: matching
;; re-building it into a regex.
;; So "for example" is transformed into "\\(for\\).*\\(example\\)".
+(require 'cl-lib)
+
;;; Code:
+(require 'cl-lib)
+
;;* Customization
(defgroup ivy nil
"Incremental vertical completion."
'((t (:inherit highlight)))
"Face used by Ivy for highlighting first match.")
+(defface ivy-subdir
+ '((t (:weight bold)))
+ "Face used by Ivy for highlighting subdirs in the alternatives.")
+
(defcustom ivy-height 10
"Number of lines for the minibuffer window."
:type 'integer)
"Whether to wrap around after the first and last candidate."
:type 'boolean)
+(defcustom ivy-on-del-error-function 'minibuffer-keyboard-quit
+ "The handler for when `ivy-backward-delete-char' throws.
+This is usually meant as a quick exit out of the minibuffer."
+ :type 'function)
+
+(defcustom ivy-extra-directories '("../" "./")
+ "Add this to the front of the list when completing file names.
+Only \"./\" and \"../\" apply here. They appear in reverse order."
+ :type 'list)
+
;;* User Visible
;;** Keymap
(require 'delsel)
(defvar ivy-minibuffer-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "C-m") 'ivy-done)
+ (define-key map (kbd "C-j") 'ivy-alt-done)
(define-key map (kbd "C-n") 'ivy-next-line)
(define-key map (kbd "C-p") 'ivy-previous-line)
+ (define-key map (kbd "<down>") 'ivy-next-line)
+ (define-key map (kbd "<up>") 'ivy-previous-line)
(define-key map (kbd "C-s") 'ivy-next-line-or-history)
(define-key map (kbd "C-r") 'ivy-previous-line-or-history)
(define-key map (kbd "SPC") 'self-insert-command)
(define-key map (kbd "DEL") 'ivy-backward-delete-char)
(define-key map (kbd "M-<") 'ivy-beginning-of-buffer)
(define-key map (kbd "M->") 'ivy-end-of-buffer)
+ (define-key map (kbd "<left>") 'ivy-beginning-of-buffer)
+ (define-key map (kbd "<right>") 'ivy-end-of-buffer)
(define-key map (kbd "M-n") 'ivy-next-history-element)
(define-key map (kbd "M-p") 'ivy-previous-history-element)
(define-key map (kbd "C-g") 'minibuffer-keyboard-quit)
+ (define-key map (kbd "C-v") 'ivy-scroll-up-command)
+ (define-key map (kbd "M-v") 'ivy-scroll-down-command)
+ (define-key map (kbd "C-M-n") 'ivy-next-line-and-call)
+ (define-key map (kbd "C-M-p") 'ivy-previous-line-and-call)
map)
"Keymap used in the minibuffer.")
Maximum length of the history list is determined by the value
of `history-length', which see.")
+(defvar ivy-require-match t
+ "Store require-match. See `completing-read'.")
+
+(defvar ivy--directory nil
+ "Current directory when completing file names.")
+
+(defvar ivy--length 0
+ "Store the amount of viable candidates.")
+
+(defvar ivy-text ""
+ "Store the user's string as it is typed in.")
+
+(defvar ivy-window nil
+ "Store the window in which `ivy-read' was called.")
+
+(defvar ivy--current ""
+ "Current candidate.")
+
+(defvar ivy--index 0
+ "Store the index of the current candidate.")
+
+(defvar ivy-exit nil
+ "Store 'done if the completion was successfully selected.
+Otherwise, store nil.")
+
+(defvar ivy--action nil
+ "Store a function to call at the end of `ivy--read'.")
+
+(defvar ivy--persistent-action nil
+ "Store a function to call for current candidate without exiting.")
+
+(defvar ivy--all-candidates nil
+ "Store the candidates passed to `ivy-read'.")
+
+(defvar ivy--default nil
+ "Default initial input.")
+
+(defvar ivy--update-fn nil
+ "Current function to call when current candidate(s) update.")
+
+(defvar ivy--prompt nil
+ "Store the format-style prompt.
+When non-nil, it should contain one %d.")
+
+(defvar ivy--old-re nil
+ "Store the old regexp.")
+
+(defvar ivy--old-cands nil
+ "Store the candidates matched by `ivy--old-re'.")
+
;;** Commands
(defun ivy-done ()
"Exit the minibuffer with the selected candidate."
(interactive)
(delete-minibuffer-contents)
- (unless (zerop ivy--length)
- (insert ivy--current)
- (setq ivy-exit 'done))
+ (cond (ivy--directory
+ (insert
+ (cond ((string= ivy-text "")
+ (if (equal ivy--current "./")
+ ivy--directory
+ (if (string-match "\\*" ivy--current)
+ ivy--current
+ (expand-file-name ivy--current ivy--directory))))
+ ((zerop ivy--length)
+ (expand-file-name ivy-text ivy--directory))
+ (t
+ (expand-file-name ivy--current ivy--directory))))
+ (setq ivy-exit 'done))
+ ((zerop ivy--length)
+ (when (memq ivy-require-match
+ '(nil confirm confirm-after-completion))
+ (insert ivy-text)
+ (setq ivy-exit 'done)))
+ (t
+ (insert ivy--current)
+ (setq ivy-exit 'done)))
(exit-minibuffer))
+(defun ivy-alt-done ()
+ "Exit the minibuffer with the selected candidate."
+ (interactive)
+ (let (dir)
+ (cond ((and ivy--directory
+ (= 0 ivy--index)
+ (= 0 (length ivy-text)))
+ (ivy-done))
+
+ ((and ivy--directory
+ (cl-plusp ivy--length)
+ (file-directory-p
+ (setq dir (expand-file-name
+ ivy--current ivy--directory))))
+ (ivy--cd dir)
+ (ivy--exhibit))
+
+ (t
+ (ivy-done)))))
+
(defun ivy-beginning-of-buffer ()
"Select the first completion candidate."
(interactive)
(interactive)
(setq ivy--index (1- ivy--length)))
-(defun ivy-next-line ()
- "Select the next completion candidate."
+(defun ivy-scroll-up-command ()
+ "Scroll the candidates upward by the minibuffer height."
(interactive)
- (if (>= ivy--index (1- ivy--length))
- (when ivy-wrap
- (ivy-beginning-of-buffer))
- (cl-incf ivy--index)))
+ (setq ivy--index (min (+ ivy--index ivy-height)
+ (1- ivy--length))))
-(defun ivy-next-line-or-history ()
- "Select the next completion candidate.
-If the input is empty, select the previous history element instead."
+(defun ivy-scroll-down-command ()
+ "Scroll the candidates downward by the minibuffer height."
(interactive)
+ (setq ivy--index (max (- ivy--index ivy-height)
+ 0)))
+
+(defun ivy-next-line (&optional arg)
+ "Move cursor vertically down ARG candidates."
+ (interactive "p")
+ (setq arg (or arg 1))
+ (cl-incf ivy--index arg)
+ (when (>= ivy--index (1- ivy--length))
+ (if ivy-wrap
+ (ivy-beginning-of-buffer)
+ (setq ivy--index (1- ivy--length)))))
+
+(defun ivy-next-line-or-history (&optional arg)
+ "Move cursor vertically down ARG candidates.
+If the input is empty, select the previous history element instead."
+ (interactive "p")
(when (string= ivy-text "")
(ivy-previous-history-element 1))
- (if (>= ivy--index (1- ivy--length))
- (when ivy-wrap
- (ivy-beginning-of-buffer))
- (cl-incf ivy--index)))
+ (ivy-next-line arg))
-(defun ivy-previous-line ()
- "Select the previous completion candidate."
- (interactive)
- (if (zerop ivy--index)
- (when ivy-wrap
- (ivy-end-of-buffer))
- (cl-decf ivy--index)))
-
-(defun ivy-previous-line-or-history ()
- "Select the previous completion candidate.
+(defun ivy-previous-line (&optional arg)
+ "Move cursor vertically up ARG candidates."
+ (interactive "p")
+ (setq arg (or arg 1))
+ (cl-decf ivy--index arg)
+ (when (< ivy--index 0)
+ (if ivy-wrap
+ (ivy-end-of-buffer)
+ (setq ivy--index 0))))
+
+(defun ivy-previous-line-or-history (arg)
+ "Move cursor vertically up ARG candidates.
If the input is empty, select the previous history element instead."
- (interactive)
+ (interactive "p")
(when (string= ivy-text "")
(ivy-previous-history-element 1))
- (if (zerop ivy--index)
- (when ivy-wrap
- (ivy-end-of-buffer))
- (cl-decf ivy--index)))
+ (ivy-previous-line arg))
+
+(defun ivy-next-line-and-call (&optional arg)
+ "Move cursor vertically down ARG candidates."
+ (interactive "p")
+ (ivy-next-line arg)
+ (ivy--exhibit)
+ (when ivy--persistent-action
+ (with-selected-window ivy-window
+ (funcall ivy--persistent-action ivy--current))))
+
+(defun ivy-previous-line-and-call (&optional arg)
+ "Move cursor vertically down ARG candidates."
+ (interactive "p")
+ (ivy-previous-line arg)
+ (ivy--exhibit)
+ (when ivy--persistent-action
+ (with-selected-window ivy-window
+ (funcall ivy--persistent-action ivy--current))))
(defun ivy-previous-history-element (arg)
"Forward to `previous-history-element' with ARG."
(next-history-element arg)
(move-end-of-line 1))
+(defun ivy--cd (dir)
+ "When completing file names, move to directory DIR."
+ (if (null ivy--directory)
+ (error "Unexpected")
+ (setq ivy--old-cands nil)
+ (setq ivy--all-candidates
+ (ivy--sorted-files (setq ivy--directory dir)))
+ (setq ivy-text "")
+ (delete-minibuffer-contents)))
+
(defun ivy-backward-delete-char ()
"Forward to `backward-delete-char'.
-On error (read-only), quit without selecting."
+On error (read-only), call `ivy-on-del-error-function'."
(interactive)
- (condition-case nil
- (backward-delete-char 1)
- (error
- (minibuffer-keyboard-quit))))
+ (if (and ivy--directory (= (minibuffer-prompt-end) (point)))
+ (progn
+ (ivy--cd (file-name-directory
+ (directory-file-name ivy--directory)))
+ (ivy--exhibit))
+ (condition-case nil
+ (backward-delete-char 1)
+ (error
+ (when ivy-on-del-error-function
+ (funcall ivy-on-del-error-function))))))
+
+(defun ivy-sort-file-function-default (x y)
+ "Compare two files X and Y.
+Prioritize directories."
+ (if (get-text-property 0 'dirp x)
+ (if (get-text-property 0 'dirp y)
+ (string< x y)
+ t)
+ (if (get-text-property 0 'dirp y)
+ nil
+ (string< x y))))
+
+(defvar ivy-sort-functions-alist
+ '((read-file-name-internal . ivy-sort-file-function-default)
+ (internal-complete-buffer . nil)
+ (counsel-git-grep-function . nil)
+ (t . string-lessp))
+ "And alist of sorting functions for each collection function.
+For each entry, nil means no sorting.
+The entry associated to t is used for all fall-through cases.")
+
+(defcustom ivy-sort-max-size 30000
+ "Sorting won't be done for collections larger than this."
+ :type 'integer)
+
+(defun ivy--sorted-files (dir)
+ "Return the list of files in DIR.
+Directories come first."
+ (let* ((default-directory dir)
+ (seq (all-completions "" 'read-file-name-internal))
+ sort-fn)
+ (if (equal dir "/")
+ seq
+ (setq seq (delete "./" (delete "../" seq)))
+ (when (eq (setq sort-fn (cdr (assoc 'read-file-name-internal
+ ivy-sort-functions-alist)))
+ 'ivy-sort-file-function-default)
+ (setq seq (mapcar (lambda (x)
+ (propertize x 'dirp (string-match-p "/$" x)))
+ seq)))
+ (when sort-fn
+ (setq seq (cl-sort seq sort-fn)))
+ (dolist (dir ivy-extra-directories)
+ (push dir seq))
+ (cl-case (length seq)
+ (0
+ '("" ""))
+ (1
+ (cons "" seq))
+ (t
+ seq)))))
;;** Entry Point
-(defun ivy-read (prompt collection &optional initial-input update-fn preselect)
+(defun ivy-read (prompt collection
+ &optional predicate initial-input keymap preselect update-fn sort)
"Read a string in the minibuffer, with completion.
PROMPT is a string to prompt with; normally it ends in a colon
and a space. When PROMPT contains %d, it will be updated with
the current number of matching candidates.
+See also `ivy-count-format'.
COLLECTION is a list of strings.
If INITIAL-INPUT is non-nil, insert it in the minibuffer initially.
-UPDATE-FN is called each time the current candidate(s) is changed.
+KEYMAP is composed together with `ivy-minibuffer-map'.
If PRESELECT is non-nil select the corresponding candidate out of
-the ones that match INITIAL-INPUT."
- (cl-case (length collection)
- (0 nil)
- (1 (car collection))
- (t
- (setq ivy--index (or
- (and preselect
- (ivy--preselect-index
- collection initial-input preselect))
- 0))
- (setq ivy--old-re nil)
- (setq ivy--old-cands nil)
- (setq ivy-text "")
- (setq ivy--all-candidates collection)
- (setq ivy--update-fn update-fn)
- (setq ivy-exit nil)
- (setq ivy--default (or (thing-at-point 'symbol) ""))
- (setq ivy--prompt
- (cond ((string-match "%.*d" prompt)
- prompt)
- ((string-match "%.*d" ivy-count-format)
- (concat ivy-count-format prompt))
- (t
- nil)))
- (unwind-protect
- (minibuffer-with-setup-hook
- #'ivy--minibuffer-setup
- (let ((res (read-from-minibuffer
- prompt
- initial-input
- ivy-minibuffer-map
- nil
- 'ivy-history)))
- (when (eq ivy-exit 'done)
- (pop ivy-history)
- (setq ivy-history
- (cons ivy-text (delete ivy-text ivy-history)))
- res)))
- (remove-hook 'post-command-hook #'ivy--exhibit)))))
+the ones that match INITIAL-INPUT.
+
+UPDATE-FN is called each time the current candidate(s) is changed.
+
+When SORT is t, refer to `ivy-sort-functions-alist' for sorting."
+ (setq ivy--directory nil)
+ (setq ivy-window (selected-window))
+ (let (coll sort-fn)
+ (cond ((eq collection 'Info-read-node-name-1)
+ (if (equal Info-current-file "dir")
+ (setq coll
+ (mapcar (lambda (x) (format "(%s)" x))
+ (cl-delete-duplicates
+ (all-completions "(" collection predicate)
+ :test 'equal)))
+ (setq coll (all-completions "" collection predicate))))
+ ((eq collection 'read-file-name-internal)
+ (setq ivy--directory default-directory)
+ (setq initial-input nil)
+ (setq coll
+ (ivy--sorted-files default-directory)))
+ ((or (functionp collection)
+ (vectorp collection)
+ (listp (car collection)))
+ (setq coll (all-completions "" collection predicate)))
+ ((hash-table-p collection)
+ (error "Hash table as a collection unsupported"))
+ (t
+ (setq coll collection)))
+ (when sort
+ (if (and (functionp collection)
+ (setq sort-fn (assoc collection ivy-sort-functions-alist)))
+ (when (and (setq sort-fn (cdr sort-fn))
+ (not (eq collection 'read-file-name-internal)))
+ (setq coll (cl-sort coll sort-fn)))
+ (if (and (setq sort-fn (cdr (assoc t ivy-sort-functions-alist)))
+ (<= (length coll) ivy-sort-max-size))
+ (setq coll (cl-sort (copy-sequence coll) sort-fn)))))
+ (when preselect
+ (unless (or ivy-require-match
+ (all-completions preselect collection))
+ (setq coll (cons preselect coll))))
+ (cl-case (length coll)
+ (0 nil)
+ (1 (car coll))
+ (t
+ (setq ivy--index (or
+ (and preselect
+ (ivy--preselect-index
+ coll initial-input preselect))
+ 0))
+ (setq ivy--old-re nil)
+ (setq ivy--old-cands nil)
+ (setq ivy-text "")
+ (setq ivy--all-candidates coll)
+ (setq ivy--update-fn update-fn)
+ (setq ivy-exit nil)
+ (setq ivy--default (or (thing-at-point 'symbol) ""))
+ (setq ivy--prompt
+ (cond ((string-match "%.*d" prompt)
+ prompt)
+ ((string-match "%.*d" ivy-count-format)
+ (concat ivy-count-format prompt))
+ (ivy--directory
+ prompt)
+ (t
+ nil)))
+ (setq ivy--action nil)
+ (prog1
+ (unwind-protect
+ (minibuffer-with-setup-hook
+ #'ivy--minibuffer-setup
+ (let ((res (read-from-minibuffer
+ prompt
+ initial-input
+ (make-composed-keymap keymap ivy-minibuffer-map)
+ nil
+ 'ivy-history)))
+ (when (eq ivy-exit 'done)
+ (pop ivy-history)
+ (setq ivy-history
+ (cons ivy-text (delete ivy-text ivy-history)))
+ res)))
+ (remove-hook 'post-command-hook #'ivy--exhibit))
+ (when ivy--action
+ (funcall ivy--action)))))))
+
+(defun ivy-completing-read (prompt collection
+ &optional predicate require-match initial-input
+ _history def _inherit-input-method)
+ "Read a string in the minibuffer, with completion.
+
+This is an interface that conforms to `completing-read', so that
+it can be used for `completing-read-function'.
+
+PROMPT is a string to prompt with; normally it ends in a colon and a space.
+COLLECTION can be a list of strings, an alist, an obarray or a hash table.
+PREDICATE limits completion to a subset of COLLECTION.
+
+REQUIRE-MATCH is stored into `ivy-require-match'. See `completing-read'.
+INITIAL-INPUT is a string that can be inserted into the minibuffer initially.
+_HISTORY is ignored for now.
+DEF is the default value.
+_INHERIT-INPUT-METHOD is ignored for now.
+
+The history, defaults and input-method arguments are ignored for now."
+ (when (listp def)
+ (setq def (car def)))
+ (setq ivy-require-match require-match)
+ (ivy-read prompt collection predicate initial-input nil def nil t))
+
+;;;###autoload
+(define-minor-mode ivy-mode
+ "Toggle Ivy mode on or off.
+With ARG, turn Ivy mode on if arg is positive, off otherwise.
+Turning on Ivy mode will set `completing-read-function' to
+`ivy-completing-read'.
+
+\\{ivy-minibuffer-map}"
+ :group 'ivy
+ :global t
+ :lighter " ivy"
+ (if ivy-mode
+ (setq completing-read-function 'ivy-completing-read)
+ (setq completing-read-function 'completing-read-default)))
(defun ivy--preselect-index (candidates initial-input preselect)
"Return the index in CANDIDATES filtered by INITIAL-INPUT for PRESELECT."
(lambda (x)
(string-match initial-input x))
candidates)))
- (cl-position-if
- (lambda (x)
- (string-match preselect x))
- candidates))
-
-(defvar ivy-text ""
- "Stores the user's string as it is typed in.")
-
-(defvar ivy-exit nil
- "Store 'done if the completion was successfully selected.
-Otherwise, store nil.")
+ (or (cl-position preselect candidates :test 'equal)
+ (cl-position-if
+ (lambda (x)
+ (string-match preselect x))
+ candidates)))
;;* Implementation
;;** Regex
(make-hash-table :test 'equal)
"Store pre-computed regex.")
-(defun ivy--regex (str)
- "Re-build regex from STR in case it has a space."
- (let ((hashed (gethash str ivy--regex-hash)))
+(defun ivy--regex (str &optional greedy)
+ "Re-build regex from STR in case it has a space.
+When GREEDY is non-nil, join words in a greedy way."
+ (let ((hashed (unless greedy
+ (gethash str ivy--regex-hash))))
(if hashed
(prog1 (cdr hashed)
(setq ivy--subexps (car hashed)))
(cons
(setq ivy--subexps (length subs))
(mapconcat
- (lambda (x) (format "\\(%s\\)" x))
+ (lambda (x)
+ (if (string-match "^\\\\(.*\\\\)$" x)
+ x
+ (format "\\(%s\\)" x)))
subs
- ".*"))))
+ (if greedy
+ ".*"
+ ".*?")))))
ivy--regex-hash)))))
;;** Rest
;; show completions with empty input
(ivy--exhibit))
-(defvar ivy--all-candidates nil
- "Store the candidates passed to `ivy-read'.")
-
-(defvar ivy--index 0
- "Store the index of the current candidate.")
-
-(defvar ivy--length 0
- "Store the amount of viable candidates.")
-
-(defvar ivy--current ""
- "Current candidate.")
-
-(defvar ivy--default nil
- "Default initial input.")
-
-(defvar ivy--update-fn nil
- "Current function to call when current candidate(s) update.")
-
(defun ivy--input ()
"Return the current minibuffer input."
;; assume one-line minibuffer input
(goto-char (minibuffer-prompt-end))
(delete-region (line-end-position) (point-max))))
-(defvar ivy--prompt nil
- "Store the format-style prompt.
-When non-nil, it should contain one %d.")
+(defvar ivy--dynamic-function nil
+ "When this is non-nil, call it for each input change to get new candidates.")
+
+(defvar ivy--full-length nil
+ "When `ivy--dynamic-function' is non-nil, this can be the total amount of candidates.")
+
+(defvar ivy--old-text nil
+ "Store old `ivy-text' for dynamic completion.")
(defun ivy--insert-prompt ()
"Update the prompt according to `ivy--prompt'."
(when ivy--prompt
(let ((inhibit-read-only t)
- (n-str (format ivy--prompt ivy--length)))
+ (n-str
+ (format
+ (if ivy--directory
+ (concat ivy--prompt (abbreviate-file-name ivy--directory))
+ ivy--prompt)
+ (or (and ivy--dynamic-function
+ ivy--full-length)
+ ivy--length))))
(save-excursion
(goto-char (point-min))
(delete-region (point-min) (minibuffer-prompt-end))
"Insert Ivy completions display.
Should be run via minibuffer `post-command-hook'."
(setq ivy-text (ivy--input))
+ (if ivy--dynamic-function
+ ;; while-no-input would cause annoying
+ ;; "Waiting for process to die...done" message interruptions
+ (progn
+ (unless (equal ivy--old-text ivy-text)
+ (let ((store ivy--dynamic-function)
+ (ivy--dynamic-function nil))
+ (setq ivy--all-candidates (funcall store ivy-text)))
+ (setq ivy--old-text ivy-text))
+ (ivy--insert-minibuffer (ivy--format ivy--all-candidates)))
+ (when ivy--directory
+ (if (string-match "/$" ivy-text)
+ (if (member ivy-text ivy--all-candidates)
+ (ivy--cd (expand-file-name ivy-text ivy--directory))
+ (ivy--cd "/"))
+ (if (string-match "~$" ivy-text)
+ (ivy--cd (expand-file-name "~/")))))
+ (ivy--insert-minibuffer
+ (ivy--format
+ (ivy--filter ivy-text ivy--all-candidates)))))
+
+(defun ivy--insert-minibuffer (text)
(ivy--cleanup)
- (let ((text (ivy-completions
- ivy-text
- ivy--all-candidates))
- (buffer-undo-list t)
+ (let ((buffer-undo-list t)
deactivate-mark)
(when ivy--update-fn
(funcall ivy--update-fn))
(forward-line 1)
(insert text)))))
-(defvar ivy--old-re nil
- "Store the old regexp.")
-
-(defvar ivy--old-cands nil
- "Store the candidates matched by `ivy--old-re'.")
-
(defun ivy--add-face (str face)
"Propertize STR with FACE.
`font-lock-append-text-property' is used, since it's better than
(font-lock-append-text-property 0 (length str) 'face face str)
str)
-(defun ivy-completions (name candidates)
- "Return as text the current completions.
-NAME is a string of words separated by spaces that is used to
-build a regex.
-CANDIDATES is a list of strings."
+(defun ivy--filter (name candidates)
+ "Return the matches for NAME for CANDIDATES.
+CANDIDATES are assumed to be static."
(let* ((re (ivy--regex name))
- (cands (if (and (equal re ivy--old-re)
- ivy--old-cands)
- ivy--old-cands
- (setq ivy--old-re re)
- (ignore-errors
- (cl-remove-if-not
- (lambda (x) (string-match re x))
- candidates))))
+ (cands (cond ((and (equal re ivy--old-re)
+ ivy--old-cands)
+ ivy--old-cands)
+ ((and ivy--old-re
+ (not (equal ivy--old-re ""))
+ (memq (cl-search
+ (if (string-match "\\\\)$" ivy--old-re)
+ (substring ivy--old-re 0 -2)
+ ivy--old-re)
+ re) '(0 2)))
+ (ignore-errors
+ (cl-remove-if-not
+ (lambda (x) (string-match re x))
+ ivy--old-cands)))
+ (t
+ (ignore-errors
+ (cl-remove-if-not
+ (lambda (x) (string-match re x))
+ candidates)))))
(tail (nthcdr ivy--index ivy--old-cands))
- (ww (window-width))
idx)
- (setq ivy--length (length cands))
(when (and tail ivy--old-cands)
- (while (and tail
- (null (setq idx (cl-position (pop tail) cands
- :test #'equal)))))
- (setq ivy--index (or idx 0)))
- (setq ivy--old-cands cands)
- (when (>= ivy--index ivy--length)
- (setq ivy--index (max (1- ivy--length) 0)))
- (if (null cands)
- ""
- (let* ((half-height (/ ivy-height 2))
- (start (max 0 (- ivy--index half-height)))
- (end (min (+ start (1- ivy-height)) ivy--length))
- (cands (cl-subseq cands start end))
- (index (min ivy--index half-height (1- (length cands)))))
- (setq ivy--current (copy-sequence (nth index cands)))
- (setf (nth index cands)
- (ivy--add-face ivy--current 'ivy-current-match))
- (concat "\n" (mapconcat
- (lambda (s)
- (if (> (length s) ww)
- (concat (substring s 0 (- ww 3)) "...")
- s))
- cands "\n"))))))
+ (unless (and (not (equal re ivy--old-re))
+ (setq ivy--index (cl-position re cands :test 'equal)))
+ (while (and tail (null idx))
+ ;; Compare with eq to handle equal duplicates in cands
+ (setq idx (cl-position (pop tail) cands)))
+ (setq ivy--index (or idx 0))))
+ (setq ivy--old-re re)
+ (setq ivy--old-cands cands)))
+
+(defun ivy--format (cands)
+ "Return a string for CANDS suitable for display in the minibuffer.
+CANDS is a list of strings."
+ (setq ivy--length (length cands))
+ (when (>= ivy--index ivy--length)
+ (setq ivy--index (max (1- ivy--length) 0)))
+ (if (null cands)
+ ""
+ (let* ((half-height (/ ivy-height 2))
+ (start (max 0 (- ivy--index half-height)))
+ (end (min (+ start (1- ivy-height)) ivy--length))
+ (cands (cl-subseq cands start end))
+ (index (min ivy--index half-height (1- (length cands)))))
+ (when ivy--directory
+ (setq cands (mapcar (lambda (x)
+ (if (string-match-p "/$" x)
+ (propertize x 'face 'ivy-subdir)
+ x))
+ cands)))
+ (setq ivy--current (copy-sequence (nth index cands)))
+ (setf (nth index cands)
+ (ivy--add-face ivy--current 'ivy-current-match))
+ (let* ((ww (window-width))
+ (res (concat "\n" (mapconcat
+ (lambda (s)
+ (if (> (length s) ww)
+ (concat (substring s 0 (- ww 3)) "...")
+ s))
+ cands "\n"))))
+ (put-text-property 0 (length res) 'read-only nil res)
+ res))))
(provide 'ivy)