Support 'stop return value for 'prefix command.

[gnu-emacs-elpa] / company-elisp.el

diff --git a/company-elisp.el b/company-elisp.el
index c03ebf685bb4d4a4ec40cce986c9348f171d04d1..a501efef86f890cece45dfd6f90b9abb36b82166 100644 (file)
--- a/company-elisp.el
+++ b/company-elisp.el
@@ -2,7 +2,7 @@
 ;;
 ;; Copyright (C) 2009 Nikolaj Schumacher
 ;;
-;; This file is part of company 0.2.
+;; This file is part of company 0.3.
 ;;
 ;; This program is free software; you can redistribute it and/or
 ;; modify it under the terms of the GNU General Public License
@@ -19,6 +19,7 @@
 
 (require 'company)
 (eval-when-compile (require 'cl))
+(require 'help-mode)
 
 (defcustom company-elisp-detect-function-context t
   "*If enabled, offer lisp functions only in appropriate contexts.
@@ -27,12 +28,9 @@ Functions are offered for completion only after ' and \(."
   :type '(choice (const :tag "Off" nil)
                  (const :tag "On" t)))
 
-(defvar company-lisp-symbol-regexp
-  "\\_<\\(\\sw\\|\\s_\\)+\\_>\\=")
-
 (defun company-grab-lisp-symbol ()
-  (let ((prefix (or (company-grab company-lisp-symbol-regexp) "")))
-    (unless (and (company-in-string-or-comment (- (point) (length prefix)))
+  (let ((prefix (company-grab-symbol)))
+    (unless (and (company-in-string-or-comment)
                  (/= (char-before (- (point) (length prefix))) ?`))
       prefix)))
 
@@ -104,11 +102,14 @@ Functions are offered for completion only after ' and \(."
          (string-match ".*$" doc)
          (match-string 0 doc))))
 
+;;;###autoload
 (defun company-elisp (command &optional arg &rest ignored)
   "A `company-mode' completion back-end for `emacs-lisp-mode'."
+  (interactive (list 'interactive))
   (case command
+    ('interactive (company-begin-backend 'company-elisp))
     ('prefix (and (eq (derived-mode-p 'emacs-lisp-mode) 'emacs-lisp-mode)
-                  (company-grab-lisp-symbol)))
+                  (or (company-grab-lisp-symbol) 'stop)))
     ('candidates (company-elisp-candidates arg))
     ('meta (company-elisp-doc arg))
     ('doc-buffer (let ((symbol (intern arg)))