94 lines
3.3 KiB
EmacsLisp
94 lines
3.3 KiB
EmacsLisp
|
;;; company-files.el --- company-mode completion back-end for file names
|
||
|
|
|
||
|
|
;; Copyright (C) 2009-2011, 2013 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
;; Author: Nikolaj Schumacher
|
||
|
|
|
||
|
|
;; This file is part of GNU Emacs.
|
||
|
|
|
||
|
|
;; GNU Emacs 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.
|
||
|
|
|
||
|
|
;; GNU Emacs 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 GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
|
||
|
|
;;; Commentary:
|
||
|
|
;;
|
||
|
|
|
||
|
|
;;; Code:
|
||
|
|
|
||
|
|
(require 'company)
|
||
|
|
(require 'cl-lib)
|
||
|
|
|
||
|
|
(defun company-files-directory-files (dir prefix)
|
||
|
|
(ignore-errors
|
||
|
|
(if (equal prefix "")
|
||
|
|
(directory-files dir nil "\\`[^.]\\|\\`.[^.]")
|
||
|
|
(file-name-all-completions prefix dir))))
|
||
|
|
|
||
|
|
(defvar company-files-regexps
|
||
|
|
(let ((begin (if (eq system-type 'windows-nt)
|
||
|
|
"[a-z][A-Z]\\"
|
||
|
|
"~?/")))
|
||
|
|
(list (concat "\"\\(" begin "[^\"\n]*\\)")
|
||
|
|
(concat "\'\\(" begin "[^\'\n]*\\)")
|
||
|
|
(concat "\\(?:[ \t]\\|^\\)\\(" begin "[^ \t\n]*\\)"))))
|
||
|
|
|
||
|
|
(defun company-files-grab-existing-name ()
|
||
|
|
;; Grab file names with spaces, only when they include quotes.
|
||
|
|
(let (file dir)
|
||
|
|
(and (cl-dolist (regexp company-files-regexps)
|
||
|
|
(when (setq file (company-grab-line regexp 1))
|
||
|
|
(cl-return file)))
|
||
|
|
(setq dir (file-name-directory file))
|
||
|
|
(not (string-match "//" dir))
|
||
|
|
(file-exists-p dir)
|
||
|
|
(file-name-all-completions (file-name-nondirectory file) dir)
|
||
|
|
file)))
|
||
|
|
|
||
|
|
(defvar company-files-completion-cache nil)
|
||
|
|
|
||
|
|
(defun company-files-complete (prefix)
|
||
|
|
(let* ((dir (file-name-directory prefix))
|
||
|
|
(file (file-name-nondirectory prefix))
|
||
|
|
candidates directories)
|
||
|
|
(unless (equal dir (car company-files-completion-cache))
|
||
|
|
(dolist (file (company-files-directory-files dir file))
|
||
|
|
(setq file (concat dir file))
|
||
|
|
(push file candidates)
|
||
|
|
(when (file-directory-p file)
|
||
|
|
(push file directories)))
|
||
|
|
(dolist (directory (reverse directories))
|
||
|
|
;; Add one level of children.
|
||
|
|
(dolist (child (company-files-directory-files directory ""))
|
||
|
|
(push (concat directory
|
||
|
|
(unless (eq (aref directory (1- (length directory))) ?/) "/")
|
||
|
|
child) candidates)))
|
||
|
|
(setq company-files-completion-cache (cons dir (nreverse candidates))))
|
||
|
|
(all-completions prefix
|
||
|
|
(cdr company-files-completion-cache))))
|
||
|
|
|
||
|
|
;;;###autoload
|
||
|
|
(defun company-files (command &optional arg &rest ignored)
|
||
|
|
"`company-mode' completion back-end existing file names."
|
||
|
|
(interactive (list 'interactive))
|
||
|
|
(cl-case command
|
||
|
|
(interactive (company-begin-backend 'company-files))
|
||
|
|
(prefix (company-files-grab-existing-name))
|
||
|
|
(candidates (company-files-complete arg))
|
||
|
|
(location (cons (dired-noselect
|
||
|
|
(file-name-directory (directory-file-name arg))) 1))
|
||
|
|
(sorted t)
|
||
|
|
(no-cache t)))
|
||
|
|
|
||
|
|
(provide 'company-files)
|
||
|
|
;;; company-files.el ends here
|