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;;; company-pycomplete.el --- a company-mode completion back-end for pycomplete.el
;; Copyright (C) 2012 Urs Fleisch
;; Author: Urs Fleisch <ufleisch@users.sourceforge.net>
;; Keywords: languages, processes, python, oop
;; 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;; The backend can be enabled using
;; (setq company-backends '((company-pycomplete)))
;;; Code:
(require 'pycomplete)
(require 'company)
(defun company-pycomplete--grab-symbol ()
;; stolen from company-pysmell--grab-symbol
(let ((symbol (company-grab-symbol)))
(when symbol
(cons symbol
(save-excursion
(let ((pos (point)))
(goto-char (- (point) (length symbol)))
(while (eq (char-before) ?.)
(goto-char (1- (point)))
(skip-syntax-backward "w_"))
(- pos (point))))))))
(defun company-pycomplete-doc-buffer (candidate)
"Return buffer with docstring of CANDIDATE if it is available."
(let* ((full-prefix (py-complete-enhanced-symbol-before-point))
(full-symbol (concat full-prefix (company-strip-prefix candidate)))
(doc (py-complete-docstring-for-symbol full-symbol)))
(when (and (stringp doc) (> (length doc) 0))
(with-current-buffer (company-doc-buffer)
(insert doc)
(current-buffer)))))
(defun company-pycomplete-location (candidate)
"Return location of CANDIDATE in cons form (FILE . LINE) if it is available."
(let* ((full-prefix (py-complete-enhanced-symbol-before-point))
(full-symbol (concat full-prefix (company-strip-prefix candidate))))
(py-complete-location full-symbol)))
(defun company-pycomplete (command &optional arg &rest ignored)
"A `company-mode' completion back-end for pycomplete."
(interactive (list 'interactive))
(case command
('interactive (company-begin-backend 'company-pycomplete))
('prefix (and (derived-mode-p 'python-mode)
(not (company-in-string-or-comment))
(company-pycomplete--grab-symbol)))
('candidates (py-complete-completions))
('doc-buffer (company-pycomplete-doc-buffer arg))
('location (company-pycomplete-location arg))))
(provide 'company-pycomplete)
;;; company-pycomplete.el ends here
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