;;; cc-mode.el --- major mode for editing C and similar languages
-;; Copyright (C) 1985, 1987, 1992-2013 Free Software Foundation, Inc.
+;; Copyright (C) 1985, 1987, 1992-2014 Free Software Foundation, Inc.
;; Authors: 2003- Alan Mackenzie
;; 1998- Martin Stjernholm
;; For Emacs < 22.2.
(eval-and-compile
- (unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
+ (unless (fboundp 'declare-function) (defmacro declare-function (&rest _r))))
(eval-when-compile
(let ((load-path
(load "cc-bytecomp" nil t)))
(cc-require 'cc-defs)
-(cc-require-when-compile 'cc-langs)
(cc-require 'cc-vars)
+(cc-require-when-compile 'cc-langs)
(cc-require 'cc-engine)
(cc-require 'cc-styles)
(cc-require 'cc-cmds)
;; Silence the compiler.
(cc-bytecomp-defvar adaptive-fill-first-line-regexp) ; Emacs
-(cc-bytecomp-defun set-keymap-parents) ; XEmacs
(cc-bytecomp-defun run-mode-hooks) ; Emacs 21.1
;; We set these variables during mode init, yet we don't require
(run-hooks 'c-initialization-hook)
;; Fix obsolete variables.
(if (boundp 'c-comment-continuation-stars)
- (setq c-block-comment-prefix
- (symbol-value 'c-comment-continuation-stars)))
+ (setq c-block-comment-prefix c-comment-continuation-stars))
(add-hook 'change-major-mode-hook 'c-leave-cc-mode-mode)
- (setq c-initialization-ok t))
+ (setq c-initialization-ok t)
+ ;; Connect up with Emacs's electric-indent-mode, for >= Emacs 24.4
+ (when (fboundp 'electric-indent-local-mode)
+ (add-hook 'electric-indent-mode-hook 'c-electric-indent-mode-hook)
+ (add-hook 'electric-indent-local-mode-hook
+ 'c-electric-indent-local-mode-hook)))
;; Will try initialization hooks again if they failed.
(put 'c-initialize-cc-mode initprop c-initialization-ok))))
((cc-bytecomp-fboundp 'set-keymap-parent)
(set-keymap-parent map c-mode-base-map))
;; XEmacs
- ((cc-bytecomp-fboundp 'set-keymap-parents)
+ ((fboundp 'set-keymap-parents)
(set-keymap-parents map c-mode-base-map))
;; incompatible
(t (error "CC Mode is incompatible with this version of Emacs")))
map))
-(defun c-define-abbrev-table (name defs)
+(defun c-define-abbrev-table (name defs &optional doc)
;; Compatibility wrapper for `define-abbrev' which passes a non-nil
;; sixth argument for SYSTEM-FLAG in emacsen that support it
;; (currently only Emacs >= 21.2).
- (let ((table (or (symbol-value name)
- (progn (define-abbrev-table name nil)
+ (let ((table (or (and (boundp name) (symbol-value name))
+ (progn (condition-case nil
+ (define-abbrev-table name nil doc)
+ (wrong-number-of-arguments ;E.g. Emacs<23.
+ (eval `(defvar ,name nil ,doc))
+ (define-abbrev-table name nil)))
(symbol-value name)))))
(while defs
(condition-case nil
;; setup the comment indent variable in a Emacs version portable way
(set (make-local-variable 'comment-indent-function) 'c-comment-indent)
+ ;; In Emacs 24.4 onwards, prevent Emacs's built in electric indentation from
+ ;; messing up CC Mode's, and set `c-electric-flag' if `electric-indent-mode'
+ ;; has been called by the user.
+ (when (boundp 'electric-indent-inhibit) (setq electric-indent-inhibit t))
+ ;; CC-mode should obey Emacs's generic preferences, tho only do it if
+ ;; Emacs's generic preferences can be set per-buffer (Emacs>=24.4).
+ (when (fboundp 'electric-indent-local-mode)
+ (setq c-electric-flag electric-indent-mode))
+
;; ;; Put submode indicators onto minor-mode-alist, but only once.
;; (or (assq 'c-submode-indicators minor-mode-alist)
;; (setq minor-mode-alist
`(progn ,@(mapcar (lambda (hook) `(run-hooks ,hook)) hooks))))
\f
-;;; Change hooks, linking with Font Lock.
+;;; Change hooks, linking with Font Lock and electric-indent-mode.
;; Buffer local variables recording Beginning/End-of-Macro position before a
;; change, when a macro straddles, respectively, the BEG or END (or both) of
;; Add needed properties to each CPP construct in the region.
(goto-char c-new-BEG)
- (let ((pps-position c-new-BEG) pps-state mbeg)
+ (skip-chars-backward " \t")
+ (let ((pps-position (point)) pps-state mbeg)
(while (and (< (point) c-new-END)
(search-forward-regexp c-anchored-cpp-prefix c-new-END t))
;; If we've found a "#" inside a string/comment, ignore it.
pps-position (point))
(unless (or (nth 3 pps-state) ; in a string?
(nth 4 pps-state)) ; in a comment?
- (goto-char (match-beginning 0))
+ (goto-char (match-beginning 1))
(setq mbeg (point))
(if (> (c-syntactic-end-of-macro) mbeg)
(progn
(c-neutralize-CPP-line mbeg (point))
- (c-set-cpp-delimiters mbeg (point))
- ;(setq pps-position (point))
- )
+ (c-set-cpp-delimiters mbeg (point)))
(forward-line)) ; no infinite loop with, e.g., "#//"
)))))
(list type marked-id
type-pos term-pos
(buffer-substring-no-properties type-pos term-pos)
- (buffer-substring-no-properties beg end)))))))
-
- (if c-get-state-before-change-functions
- (mapc (lambda (fn)
- (funcall fn beg end))
- c-get-state-before-change-functions))
- )))
- ;; The following must be done here rather than in `c-after-change' because
- ;; newly inserted parens would foul up the invalidation algorithm.
+ (buffer-substring-no-properties beg end)))))))
+
+ (if c-get-state-before-change-functions
+ (let (open-paren-in-column-0-is-defun-start)
+ (mapc (lambda (fn)
+ (funcall fn beg end))
+ c-get-state-before-change-functions)))
+ )))
+ ;; The following must be done here rather than in `c-after-change' because
+ ;; newly inserted parens would foul up the invalidation algorithm.
(c-invalidate-state-cache beg))
(defvar c-in-after-change-fontification nil)
;; This calls the language variable c-before-font-lock-functions, if non nil.
;; This typically sets `syntax-table' properties.
- (c-save-buffer-state ()
+ (c-save-buffer-state (case-fold-search open-paren-in-column-0-is-defun-start)
;; When `combine-after-change-calls' is used we might get calls
;; with regions outside the current narrowing. This has been
;; observed in Emacs 20.7.
(setq beg end)))
;; C-y is capable of spuriously converting category properties
- ;; c-</>-as-paren-syntax into hard syntax-table properties. Remove
- ;; these when it happens.
+ ;; c-</>-as-paren-syntax and c-cpp-delimiter into hard syntax-table
+ ;; properties. Remove these when it happens.
(c-clear-char-property-with-value beg end 'syntax-table
c-<-as-paren-syntax)
(c-clear-char-property-with-value beg end 'syntax-table
c->-as-paren-syntax)
+ (c-clear-char-property-with-value beg end 'syntax-table nil)
(c-trim-found-types beg end old-len) ; maybe we don't need all of these.
(c-invalidate-sws-region-after beg end)
(backward-char))
new-pos)) ; back over (, [, <.
-(defun c-change-set-fl-decl-start (beg end old-len)
+(defun c-change-set-fl-decl-start (_beg _end _old-len)
;; Set c-new-BEG to the beginning of a "local" declaration if it('s BOL) is
;; inside one. This is called from an after-change-function, but the
;; parameters BEG END and OLD-LEN are ignored. See `c-set-fl-decl-start'
;; `c-set-fl-decl-start' for the detailed functionality.
(cons (c-set-fl-decl-start beg) end))
-(defvar c-standard-font-lock-fontify-region-function nil
- "Standard value of `font-lock-fontify-region-function'")
-
(defun c-font-lock-fontify-region (beg end &optional verbose)
;; Effectively advice around `font-lock-fontify-region' which extends the
;; region (BEG END), for example, to avoid context fontification chopping
;;
;; Type a space in the first blank line, and the fontification of the next
;; line was fouled up by context fontification.
- (let ((new-beg beg) (new-end end) new-region case-fold-search)
+ (let ((new-beg beg) (new-end end) new-region case-fold-search
+ open-paren-in-column-0-is-defun-start)
(if c-in-after-change-fontification
(setq c-in-after-change-fontification nil)
(save-restriction
(setq new-region (funcall fn new-beg new-end))
(setq new-beg (car new-region) new-end (cdr new-region)))
c-before-context-fontification-functions))))
- (funcall c-standard-font-lock-fontify-region-function
+ (funcall (default-value 'font-lock-fontify-region-function)
new-beg new-end verbose)))
(defun c-after-font-lock-init ()
;; Put on `font-lock-mode-hook'. This function ensures our after-change
- ;; function will get executed before the font-lock one. Amongst other
- ;; things.
+ ;; function will get executed before the font-lock one.
(remove-hook 'after-change-functions 'c-after-change t)
- (add-hook 'after-change-functions 'c-after-change nil t)
- (setq c-standard-font-lock-fontify-region-function
- (default-value 'font-lock-fontify-region-function)))
+ (add-hook 'after-change-functions 'c-after-change nil t))
(defun c-font-lock-init ()
"Set up the font-lock variables for using the font-lock support in CC Mode.
(make-local-hook 'font-lock-mode-hook))
(add-hook 'font-lock-mode-hook 'c-after-font-lock-init nil t))
-(defun c-extend-after-change-region (beg end old-len)
+(defun c-extend-after-change-region (_beg _end _old-len)
"Extend the region to be fontified, if necessary."
;; Note: the parameters are ignored here. This somewhat indirect
;; implementation exists because it is minimally different from the
;; function.
(cons c-new-BEG c-new-END))
+;; Connect up to `electric-indent-mode' (Emacs 24.4 and later).
+(defun c-electric-indent-mode-hook ()
+ ;; Emacs has en/disabled `electric-indent-mode'. Propagate this through to
+ ;; each CC Mode buffer.
+ (mapc (lambda (buf)
+ (with-current-buffer buf
+ (when c-buffer-is-cc-mode
+ ;; Don't use `c-toggle-electric-state' here due to recursion.
+ (setq c-electric-flag electric-indent-mode)
+ (c-update-modeline))))
+ (buffer-list)))
+
+(defun c-electric-indent-local-mode-hook ()
+ ;; Emacs has en/disabled `electric-indent-local-mode' for this buffer.
+ ;; Propagate this through to this buffer's value of `c-electric-flag'
+ (when c-buffer-is-cc-mode
+ (setq c-electric-flag electric-indent-mode)
+ (c-update-modeline)))
+
\f
;; Support for C
-;;;###autoload
-(defvar c-mode-syntax-table nil
+(defvar c-mode-syntax-table
+ (funcall (c-lang-const c-make-mode-syntax-table c))
"Syntax table used in c-mode buffers.")
-(or c-mode-syntax-table
- (setq c-mode-syntax-table
- (funcall (c-lang-const c-make-mode-syntax-table c))))
-(defvar c-mode-abbrev-table nil
- "Abbreviation table used in c-mode buffers.")
(c-define-abbrev-table 'c-mode-abbrev-table
'(("else" "else" c-electric-continued-statement 0)
- ("while" "while" c-electric-continued-statement 0)))
+ ("while" "while" c-electric-continued-statement 0))
+ "Abbreviation table used in c-mode buffers.")
-(defvar c-mode-map ()
+(defvar c-mode-map
+ (let ((map (c-make-inherited-keymap)))
+ ;; Add bindings which are only useful for C.
+ (define-key map "\C-c\C-e" 'c-macro-expand)
+ map)
"Keymap used in c-mode buffers.")
-(if c-mode-map
- nil
- (setq c-mode-map (c-make-inherited-keymap))
- ;; add bindings which are only useful for C
- (define-key c-mode-map "\C-c\C-e" 'c-macro-expand)
- )
+
(easy-menu-define c-c-menu c-mode-map "C Mode Commands"
(cons "C" (c-lang-const c-mode-menu c)))
;;;###autoload (add-to-list 'auto-mode-alist '("\\.i\\'" . c-mode))
;;;###autoload (add-to-list 'auto-mode-alist '("\\.ii\\'" . c++-mode))
+(unless (fboundp 'prog-mode) (defalias 'prog-mode 'fundamental-mode))
;;;###autoload
(define-derived-mode c-mode prog-mode "C"
\f
;; Support for C++
-;;;###autoload
-(defvar c++-mode-syntax-table nil
+(defvar c++-mode-syntax-table
+ (funcall (c-lang-const c-make-mode-syntax-table c++))
"Syntax table used in c++-mode buffers.")
-(or c++-mode-syntax-table
- (setq c++-mode-syntax-table
- (funcall (c-lang-const c-make-mode-syntax-table c++))))
-(defvar c++-mode-abbrev-table nil
- "Abbreviation table used in c++-mode buffers.")
(c-define-abbrev-table 'c++-mode-abbrev-table
'(("else" "else" c-electric-continued-statement 0)
("while" "while" c-electric-continued-statement 0)
- ("catch" "catch" c-electric-continued-statement 0)))
+ ("catch" "catch" c-electric-continued-statement 0))
+ "Abbreviation table used in c++-mode buffers.")
-(defvar c++-mode-map ()
+(defvar c++-mode-map
+ (let ((map (c-make-inherited-keymap)))
+ ;; Add bindings which are only useful for C++.
+ (define-key map "\C-c\C-e" 'c-macro-expand)
+ (define-key map "\C-c:" 'c-scope-operator)
+ (define-key map "<" 'c-electric-lt-gt)
+ (define-key map ">" 'c-electric-lt-gt)
+ map)
"Keymap used in c++-mode buffers.")
-(if c++-mode-map
- nil
- (setq c++-mode-map (c-make-inherited-keymap))
- ;; add bindings which are only useful for C++
- (define-key c++-mode-map "\C-c\C-e" 'c-macro-expand)
- (define-key c++-mode-map "\C-c:" 'c-scope-operator)
- (define-key c++-mode-map "<" 'c-electric-lt-gt)
- (define-key c++-mode-map ">" 'c-electric-lt-gt))
(easy-menu-define c-c++-menu c++-mode-map "C++ Mode Commands"
(cons "C++" (c-lang-const c-mode-menu c++)))
\f
;; Support for Objective-C
-;;;###autoload
-(defvar objc-mode-syntax-table nil
+(defvar objc-mode-syntax-table
+ (funcall (c-lang-const c-make-mode-syntax-table objc))
"Syntax table used in objc-mode buffers.")
-(or objc-mode-syntax-table
- (setq objc-mode-syntax-table
- (funcall (c-lang-const c-make-mode-syntax-table objc))))
-(defvar objc-mode-abbrev-table nil
- "Abbreviation table used in objc-mode buffers.")
(c-define-abbrev-table 'objc-mode-abbrev-table
'(("else" "else" c-electric-continued-statement 0)
- ("while" "while" c-electric-continued-statement 0)))
+ ("while" "while" c-electric-continued-statement 0))
+ "Abbreviation table used in objc-mode buffers.")
-(defvar objc-mode-map ()
+(defvar objc-mode-map
+ (let ((map (c-make-inherited-keymap)))
+ ;; Add bindings which are only useful for Objective-C.
+ (define-key map "\C-c\C-e" 'c-macro-expand)
+ map)
"Keymap used in objc-mode buffers.")
-(if objc-mode-map
- nil
- (setq objc-mode-map (c-make-inherited-keymap))
- ;; add bindings which are only useful for Objective-C
- (define-key objc-mode-map "\C-c\C-e" 'c-macro-expand))
(easy-menu-define c-objc-menu objc-mode-map "ObjC Mode Commands"
(cons "ObjC" (c-lang-const c-mode-menu objc)))
\f
;; Support for Java
-;;;###autoload
-(defvar java-mode-syntax-table nil
+(defvar java-mode-syntax-table
+ (funcall (c-lang-const c-make-mode-syntax-table java))
"Syntax table used in java-mode buffers.")
-(or java-mode-syntax-table
- (setq java-mode-syntax-table
- (funcall (c-lang-const c-make-mode-syntax-table java))))
-(defvar java-mode-abbrev-table nil
- "Abbreviation table used in java-mode buffers.")
(c-define-abbrev-table 'java-mode-abbrev-table
'(("else" "else" c-electric-continued-statement 0)
("while" "while" c-electric-continued-statement 0)
("catch" "catch" c-electric-continued-statement 0)
- ("finally" "finally" c-electric-continued-statement 0)))
+ ("finally" "finally" c-electric-continued-statement 0))
+ "Abbreviation table used in java-mode buffers.")
-(defvar java-mode-map ()
+(defvar java-mode-map
+ (let ((map (c-make-inherited-keymap)))
+ ;; Add bindings which are only useful for Java.
+ map)
"Keymap used in java-mode buffers.")
-(if java-mode-map
- nil
- (setq java-mode-map (c-make-inherited-keymap))
- ;; add bindings which are only useful for Java
- )
;; Regexp trying to describe the beginning of a Java top-level
;; definition. This is not used by CC Mode, nor is it maintained
\f
;; Support for CORBA's IDL language
-;;;###autoload
-(defvar idl-mode-syntax-table nil
+(defvar idl-mode-syntax-table
+ (funcall (c-lang-const c-make-mode-syntax-table idl))
"Syntax table used in idl-mode buffers.")
-(or idl-mode-syntax-table
- (setq idl-mode-syntax-table
- (funcall (c-lang-const c-make-mode-syntax-table idl))))
-(defvar idl-mode-abbrev-table nil
+(c-define-abbrev-table 'idl-mode-abbrev-table nil
"Abbreviation table used in idl-mode buffers.")
-(c-define-abbrev-table 'idl-mode-abbrev-table nil)
-(defvar idl-mode-map ()
+(defvar idl-mode-map
+ (let ((map (c-make-inherited-keymap)))
+ ;; Add bindings which are only useful for IDL.
+ map)
"Keymap used in idl-mode buffers.")
-(if idl-mode-map
- nil
- (setq idl-mode-map (c-make-inherited-keymap))
- ;; add bindings which are only useful for IDL
- )
(easy-menu-define c-idl-menu idl-mode-map "IDL Mode Commands"
(cons "IDL" (c-lang-const c-mode-menu idl)))
\f
;; Support for Pike
-;;;###autoload
-(defvar pike-mode-syntax-table nil
+(defvar pike-mode-syntax-table
+ (funcall (c-lang-const c-make-mode-syntax-table pike))
"Syntax table used in pike-mode buffers.")
-(or pike-mode-syntax-table
- (setq pike-mode-syntax-table
- (funcall (c-lang-const c-make-mode-syntax-table pike))))
-(defvar pike-mode-abbrev-table nil
- "Abbreviation table used in pike-mode buffers.")
(c-define-abbrev-table 'pike-mode-abbrev-table
'(("else" "else" c-electric-continued-statement 0)
- ("while" "while" c-electric-continued-statement 0)))
+ ("while" "while" c-electric-continued-statement 0))
+ "Abbreviation table used in pike-mode buffers.")
-(defvar pike-mode-map ()
+(defvar pike-mode-map
+ (let ((map (c-make-inherited-keymap)))
+ ;; Additional bindings.
+ (define-key map "\C-c\C-e" 'c-macro-expand)
+ map)
"Keymap used in pike-mode buffers.")
-(if pike-mode-map
- nil
- (setq pike-mode-map (c-make-inherited-keymap))
- ;; additional bindings
- (define-key pike-mode-map "\C-c\C-e" 'c-macro-expand))
(easy-menu-define c-pike-menu pike-mode-map "Pike Mode Commands"
(cons "Pike" (c-lang-const c-mode-menu pike)))
;;;###autoload (add-to-list 'interpreter-mode-alist '("nawk" . awk-mode))
;;;###autoload (add-to-list 'interpreter-mode-alist '("gawk" . awk-mode))
-;;; Autoload directives must be on the top level, so we construct an
-;;; autoload form instead.
-;;;###autoload (autoload 'awk-mode "cc-mode" "Major mode for editing AWK code." t)
-
-(defvar awk-mode-abbrev-table nil
- "Abbreviation table used in awk-mode buffers.")
(c-define-abbrev-table 'awk-mode-abbrev-table
'(("else" "else" c-electric-continued-statement 0)
- ("while" "while" c-electric-continued-statement 0)))
+ ("while" "while" c-electric-continued-statement 0))
+ "Abbreviation table used in awk-mode buffers.")
-(defvar awk-mode-map ()
+(defvar awk-mode-map
+ (let ((map (c-make-inherited-keymap)))
+ ;; Add bindings which are only useful for awk.
+ (define-key map "#" 'self-insert-command)
+ (define-key map "/" 'self-insert-command)
+ (define-key map "*" 'self-insert-command)
+ (define-key map "\C-c\C-n" 'undefined) ; #if doesn't exist in awk.
+ (define-key map "\C-c\C-p" 'undefined)
+ (define-key map "\C-c\C-u" 'undefined)
+ (define-key map "\M-a" 'c-beginning-of-statement) ; 2003/10/7
+ (define-key map "\M-e" 'c-end-of-statement) ; 2003/10/7
+ (define-key map "\C-\M-a" 'c-awk-beginning-of-defun)
+ (define-key map "\C-\M-e" 'c-awk-end-of-defun)
+ map)
"Keymap used in awk-mode buffers.")
-(if awk-mode-map
- nil
- (setq awk-mode-map (c-make-inherited-keymap))
- ;; add bindings which are only useful for awk.
- (define-key awk-mode-map "#" 'self-insert-command)
- (define-key awk-mode-map "/" 'self-insert-command)
- (define-key awk-mode-map "*" 'self-insert-command)
- (define-key awk-mode-map "\C-c\C-n" 'undefined) ; #if doesn't exist in awk.
- (define-key awk-mode-map "\C-c\C-p" 'undefined)
- (define-key awk-mode-map "\C-c\C-u" 'undefined)
- (define-key awk-mode-map "\M-a" 'c-beginning-of-statement) ; 2003/10/7
- (define-key awk-mode-map "\M-e" 'c-end-of-statement) ; 2003/10/7
- (define-key awk-mode-map "\C-\M-a" 'c-awk-beginning-of-defun)
- (define-key awk-mode-map "\C-\M-e" 'c-awk-end-of-defun))
(easy-menu-define c-awk-menu awk-mode-map "AWK Mode Commands"
(cons "AWK" (c-lang-const c-mode-menu awk)))
filladapt-mode
defun-prompt-regexp
font-lock-mode
+ auto-fill-mode
font-lock-maximum-decoration
parse-sexp-lookup-properties
lookup-syntax-properties))