;;; imenu.el --- framework for mode-specific buffer indexes
-;; Copyright (C) 1994, 1995, 1996, 1997, 1998, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+;; Copyright (C) 1994-1998, 2001-2012 Free Software Foundation, Inc.
;; Author: Ake Stenhoff <etxaksf@aom.ericsson.se>
;; Lars Lindberg <lli@sypro.cap.se>
:link '(custom-manual "(elisp)Imenu"))
(defcustom imenu-use-markers t
- "*Non-nil means use markers instead of integers for Imenu buffer positions.
+ "Non-nil means use markers instead of integers for Imenu buffer positions.
Setting this to nil makes Imenu work a little faster but editing the
buffer will make the generated index positions wrong.
(defcustom imenu-max-item-length 60
- "*If a number, truncate Imenu entries to that length."
+ "If a number, truncate Imenu entries to that length."
:type '(choice integer
(const :tag "Unlimited"))
:group 'imenu)
(defcustom imenu-auto-rescan nil
- "*Non-nil means Imenu should always rescan the buffers."
+ "Non-nil means Imenu should always rescan the buffers."
:type 'boolean
:group 'imenu)
(defcustom imenu-auto-rescan-maxout 60000
- "*Imenu auto-rescan is disabled in buffers larger than this size (in bytes).
+ "Imenu auto-rescan is disabled in buffers larger than this size (in bytes).
This variable is buffer-local."
:type 'integer
:group 'imenu)
:version "22.1")
(defcustom imenu-after-jump-hook nil
- "*Hooks called after jumping to a place in the buffer.
+ "Hooks called after jumping to a place in the buffer.
Useful things to use here include `reposition-window', `recenter', and
\(lambda () (recenter 0)) to show at top of screen."
;;;###autoload
(defcustom imenu-sort-function nil
- "*The function to use for sorting the index mouse-menu.
+ "The function to use for sorting the index mouse-menu.
Affects only the mouse index menu.
:group 'imenu)
(defcustom imenu-max-items 25
- "*Maximum number of elements in a mouse menu for Imenu."
+ "Maximum number of elements in a mouse menu for Imenu."
:type 'integer
:group 'imenu)
;; No longer used. KFS 2004-10-27
;; (defcustom imenu-scanning-message "Scanning buffer for index (%3d%%)"
-;; "*Progress message during the index scanning of the buffer.
+;; "Progress message during the index scanning of the buffer.
;; If non-nil, user gets a message during the scanning of the buffer.
;;
;; Relevant only if the mode-specific function that creates the buffer
;; :group 'imenu)
(defcustom imenu-space-replacement "."
- "*The replacement string for spaces in index names.
+ "The replacement string for spaces in index names.
Used when presenting the index in a completion buffer to make the
names work as tokens."
:type '(choice string (const nil))
:group 'imenu)
(defcustom imenu-level-separator ":"
- "*The separator between index names of different levels.
+ "The separator between index names of different levels.
Used for making mouse-menu titles and for flattening nested indexes
with name concatenation."
:type 'string
`fortran-mode' with `imenu-syntax-alist' set locally to give the
characters which normally have \"symbol\" syntax \"word\" syntax
during matching.")
+;;;###autoload(put 'imenu-generic-expression 'risky-local-variable t)
;;;###autoload
(make-variable-buffer-local 'imenu-generic-expression)
;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; FIXME: This is the only imenu-example-* definition that's actually used,
-;; and it seems to only be used by cperl-mode.el. We should just move it to
-;; cperl-mode.el and remove the rest.
+;; FIXME: This was the only imenu-example-* definition actually used,
+;; by cperl-mode.el. Now cperl-mode has its own copy, so these can
+;; all be removed.
(defun imenu-example--name-and-position ()
"Return the current/previous sexp and its (beginning) location.
Don't move point."
(end (progn (forward-sexp) (point))))
(cons (buffer-substring beg end)
beg))))
+(make-obsolete 'imenu-example--name-and-position
+ "use your own function instead." "23.2")
;;;
;;; Lisp
(end (progn (forward-sexp -1) (point))))
(buffer-substring beg end)))
(error nil)))))
+(make-obsolete 'imenu-example--lisp-extract-index-name "your own" "23.2")
(defun imenu-example--create-lisp-index ()
;; Example of a candidate for `imenu-create-index-function'.
(push (cons "Syntax-unknown" index-unknown-alist)
index-alist))
index-alist))
+(make-obsolete 'imenu-example--create-lisp-index "your own" "23.2")
;; Regular expression to find C functions
(defvar imenu-example--function-name-regexp-c
(push (imenu-example--name-and-position) index-alist))))
(imenu-progress-message prev-pos 100)
(nreverse index-alist)))
-
+(make-obsolete 'imenu-example--create-c-index "your own" "23.2")
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
There is one simple element with negative POSITION; selecting that
element recalculates the buffer's index alist.")
+;;;###autoload(put 'imenu--index-alist 'risky-local-variable t)
(make-variable-buffer-local 'imenu--index-alist)
;; Split LIST into sublists of max length N.
;; Example (imenu--split '(1 2 3 4 5 6 7 8) 3)-> '((1 2 3) (4 5 6) (7 8))
+;;
+;; The returned list DOES NOT share structure with LIST.
(defun imenu--split (list n)
(let ((remain list)
(result '())
;;; Split the alist MENULIST into a nested alist, if it is long enough.
;;; In any case, add TITLE to the front of the alist.
+;;; If IMENU--RESCAN-ITEM is present in MENULIST, it is moved to the
+;;; beginning of the returned alist.
+;;;
+;;; The returned alist DOES NOT share structure with MENULIST.
(defun imenu--split-menu (menulist title)
- (let (keep-at-top tail)
+ (let ((menulist (copy-sequence menulist))
+ keep-at-top tail)
(if (memq imenu--rescan-item menulist)
- (setq keep-at-top (cons imenu--rescan-item nil)
+ (setq keep-at-top (list imenu--rescan-item)
menulist (delq imenu--rescan-item menulist)))
(setq tail menulist)
(dolist (item tail)
(push item keep-at-top)
(setq menulist (delq item menulist))))
(if imenu-sort-function
- (setq menulist (sort (copy-sequence menulist) imenu-sort-function)))
+ (setq menulist (sort menulist imenu-sort-function)))
(if (> (length menulist) imenu-max-items)
(setq menulist
(mapcar
;;; Split up each long alist that are nested within ALIST
;;; into nested alists.
+;;;
+;;; Return a split and sorted copy of ALIST. The returned alist DOES
+;;; NOT share structure with ALIST.
(defun imenu--split-submenus (alist)
(mapcar (function
(lambda (elt)
;;; Find all markers in alist and makes
;;; them point nowhere.
;;; The top-level call uses nil as the argument;
-;;; non-nil arguments are in recursivecalls.
+;;; non-nil arguments are in recursive calls.
(defvar imenu--cleanup-seen)
(defun imenu--cleanup (&optional alist)
(make-variable-buffer-local 'imenu-syntax-alist)
(defun imenu-default-create-index-function ()
- "*Default function to create an index alist of the current buffer.
+ "Default function to create an index alist of the current buffer.
The most general method is to move point to end of buffer, then repeatedly call
`imenu-prev-index-position-function' and `imenu-extract-index-name-function'.
;; in these major modes. But save that change for later.
(cond ((and imenu-prev-index-position-function
imenu-extract-index-name-function)
- (let ((index-alist '())
+ (let ((index-alist '()) (pos (point))
prev-pos name)
(goto-char (point-max))
(imenu-progress-message prev-pos 0 t)
;; Search for the function
(while (funcall imenu-prev-index-position-function)
+ (when (= pos (point))
+ (error "Infinite loop at %s:%d: imenu-prev-index-position-function does not move point" (buffer-name) pos))
+ (setq pos (point))
(imenu-progress-message prev-pos nil t)
(save-excursion
(setq name (funcall imenu-extract-index-name-function)))
(provide 'imenu)
-;; arch-tag: 98a2f5f5-4b91-4704-b18c-3aacf77d77a7
;;; imenu.el ends here
HCoop / bpt / emacs.git / blobdiff