code.delx.au - gnu-emacs-elpa/blob - company-pysmell.el

   1 ;;; company-pysmell.el --- A company-mode completion back-end for pysmell.el
   2
   3 ;; Copyright (C) 2009-2011  Free Software Foundation, Inc.
   4
   5 ;; Author: Nikolaj Schumacher
   6
   7 ;; This file is part of GNU Emacs.
   8
   9 ;; GNU Emacs is free software: you can redistribute it and/or modify
  10 ;; it under the terms of the GNU General Public License as published by
  11 ;; the Free Software Foundation, either version 3 of the License, or
  12 ;; (at your option) any later version.
  13
  14 ;; GNU Emacs is distributed in the hope that it will be useful,
  15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;; GNU General Public License for more details.
  18
  19 ;; You should have received a copy of the GNU General Public License
  20 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  21
  22
  23 ;;; Commentary:
  24 ;;
  25 ;; Someone who can actually install Pysmell should tell us if this still works.
  26
  27 ;;; Code:
  28
  29 (eval-when-compile (require 'cl))
  30 (require 'pysmell)
  31
  32 (defvar company-pysmell--available-p 'unknown)
  33 (make-variable-buffer-local 'company-pysmell--available-p)
  34
  35 (defun company-pysmell--available-p ()
  36   (if (eq company-pysmell--available-p 'unknown)
  37       (setq company-pysmell--available-p
  38             (company-locate-dominating-file buffer-file-name "PYSMELLTAGS"))
  39     company-pysmell--available-p))
  40
  41 (defun company-pysmell--grab-symbol ()
  42   (let ((symbol (company-grab-symbol)))
  43     (when symbol
  44       (cons symbol
  45             (save-excursion
  46               (let ((pos (point)))
  47                 (goto-char (- (point) (length symbol)))
  48                 (while (eq (char-before) ?.)
  49                   (goto-char (1- (point)))
  50                   (skip-syntax-backward "w_"))
  51                 (- pos (point))))))))
  52
  53 ;;;###autoload
  54 (defun company-pysmell (command &optional arg &rest ignored)
  55   "A `company-mode' completion back-end for pysmell.
  56 This requires pysmell.el and pymacs.el."
  57   (interactive (list 'interactive))
  58   (case command
  59     (interactive (company-begin-backend 'company-pysmell))
  60     (prefix (and (derived-mode-p 'python-mode)
  61                  buffer-file-name
  62                  (not (company-in-string-or-comment))
  63                  (company-pysmell--available-p)
  64                  (company-pysmell--grab-symbol)))
  65     (candidates (delete "" (pysmell-get-all-completions)))))
  66
  67 (provide 'company-pysmell)
  68 ;;; company-pysmell.el ends here