-;;; company-dabbrev-code.el --- dabbrev-like company-mode back-end for code
+;;; company-dabbrev-code.el --- dabbrev-like company-mode backend for code -*- lexical-binding: t -*-
-;; Copyright (C) 2009, 2011 Free Software Foundation, Inc.
+;; Copyright (C) 2009, 2011, 2014 Free Software Foundation, Inc.
;; Author: Nikolaj Schumacher
(require 'company)
(require 'company-dabbrev)
-(eval-when-compile (require 'cl))
+(require 'cl-lib)
(defgroup company-dabbrev-code nil
- "dabbrev-like completion back-end for code."
+ "dabbrev-like completion backend for code."
:group 'company)
(defcustom company-dabbrev-code-modes
- '(asm-mode batch-file-mode c++-mode c-mode cperl-mode csharp-mode css-mode
- emacs-lisp-mode erlang-mode espresso-mode f90-mode fortran-mode
- haskell-mode java-mode javascript-mode jde-mode js2-mode lisp-mode
- lua-mode objc-mode perl-mode php-mode python-mode ruby-mode scheme-mode
- shell-script-mode)
+ '(prog-mode
+ batch-file-mode csharp-mode css-mode erlang-mode haskell-mode jde-mode
+ lua-mode python-mode)
"Modes that use `company-dabbrev-code'.
-In all these modes `company-dabbrev-code' will complete only symbols, not text
-in comments or strings. In other modes `company-dabbrev-code' will pass control
-to other back-ends \(e.g. `company-dabbrev'\).
-Value t means complete in all modes."
- :type '(choice (repeat (symbol :tag "Major mode"))
- (const tag "All modes" t)))
+In all these modes (and their derivatives) `company-dabbrev-code' will
+complete only symbols, not text in comments or strings. In other modes
+`company-dabbrev-code' will pass control to other backends
+\(e.g. `company-dabbrev'\). Value t means complete in all modes."
+ :type '(choice (repeat :tag "Some modes" (symbol :tag "Major mode"))
+ (const :tag "All modes" t)))
(defcustom company-dabbrev-code-other-buffers t
"Determines whether `company-dabbrev-code' should search other buffers.
-If `all', search all other buffers. If t, search buffers with the same
-major mode.
-See also `company-dabbrev-code-time-limit'."
+If `all', search all other buffers, except the ignored ones. If t, search
+buffers with the same major mode. If `code', search all buffers with major
+modes in `company-dabbrev-code-modes', or derived from one of them. See
+also `company-dabbrev-code-time-limit'."
:type '(choice (const :tag "Off" nil)
(const :tag "Same major mode" t)
+ (const :tag "Code major modes" code)
(const :tag "All" all)))
-(defcustom company-dabbrev-code-time-limit .5
+(defcustom company-dabbrev-code-time-limit .1
"Determines how long `company-dabbrev-code' should look for matches."
:type '(choice (const :tag "Off" nil)
(number :tag "Seconds")))
-(defsubst company-dabbrev-code--make-regexp (prefix)
+(defcustom company-dabbrev-code-everywhere nil
+ "Non-nil to offer completions in comments and strings."
+ :type 'boolean)
+
+(defcustom company-dabbrev-code-ignore-case nil
+ "Non-nil to ignore case when collecting completion candidates."
+ :type 'boolean)
+
+(defun company-dabbrev-code--make-regexp (prefix)
(concat "\\_<" (if (equal prefix "")
"\\([a-zA-Z]\\|\\s_\\)"
(regexp-quote prefix))
;;;###autoload
(defun company-dabbrev-code (command &optional arg &rest ignored)
- "dabbrev-like `company-mode' back-end for code.
-The back-end looks for all symbols in the current buffer that aren't in
+ "dabbrev-like `company-mode' backend for code.
+The backend looks for all symbols in the current buffer that aren't in
comments or strings."
(interactive (list 'interactive))
- (case command
+ (cl-case command
(interactive (company-begin-backend 'company-dabbrev-code))
(prefix (and (or (eq t company-dabbrev-code-modes)
- (apply 'derived-mode-p company-dabbrev-code-modes))
- (not (company-in-string-or-comment))
+ (apply #'derived-mode-p company-dabbrev-code-modes))
+ (or company-dabbrev-code-everywhere
+ (not (company-in-string-or-comment)))
(or (company-grab-symbol) 'stop)))
- (candidates (let ((case-fold-search nil))
+ (candidates (let ((case-fold-search company-dabbrev-code-ignore-case))
(company-dabbrev--search
(company-dabbrev-code--make-regexp arg)
company-dabbrev-code-time-limit
- company-dabbrev-code-other-buffers t)))
+ (pcase company-dabbrev-code-other-buffers
+ (`t (list major-mode))
+ (`code company-dabbrev-code-modes)
+ (`all `all))
+ t)))
+ (ignore-case company-dabbrev-code-ignore-case)
(duplicates t)))
(provide 'company-dabbrev-code)