;;; imenu.el --- framework for mode-specific buffer indexes -*- lexical-binding: t -*-
-;; Copyright (C) 1994-1998, 2001-2013 Free Software Foundation, Inc.
+;; Copyright (C) 1994-1998, 2001-2014 Free Software Foundation, Inc.
;; Author: Ake Stenhoff <etxaksf@aom.ericsson.se>
;; Lars Lindberg <lli@sypro.cap.se>
-;; Maintainer: FSF
+;; Maintainer: emacs-devel@gnu.org
;; Created: 8 Feb 1994
;; Keywords: tools convenience
:type 'string
:group 'imenu)
+(defcustom imenu-generic-skip-comments-and-strings t
+ "When non-nil, ignore text inside comments and strings.
+Only affects `imenu--generic-function'."
+ :type 'boolean
+ :group 'imenu
+ :version "24.4")
+
;;;###autoload
(defvar imenu-generic-expression nil
"List of definition matchers for creating an Imenu index.
(defun imenu--subalist-p (item)
- (and (consp (cdr item)) (listp (cadr item))
- (not (eq (car (cadr item)) 'lambda))))
+ (and (consp item)
+ (consp (cdr item))
+ (listp (cadr item))
+ (not (functionp (cadr item)))))
(defmacro imenu-progress-message (_prevpos &optional _relpos _reverse)
"Macro to display a progress message.
;; Regular expression to find C functions
(defvar imenu-example--function-name-regexp-c
(concat
- "^[a-zA-Z0-9]+[ \t]?" ; type specs; there can be no
+ "^[a-zA-Z0-9]+[ \t]?" ; Type specs; there can be no
"\\([a-zA-Z0-9_*]+[ \t]+\\)?" ; more than 3 tokens, right?
"\\([a-zA-Z0-9_*]+[ \t]+\\)?"
- "\\([*&]+[ \t]*\\)?" ; pointer
- "\\([a-zA-Z0-9_*]+\\)[ \t]*(" ; name
+ "\\([*&]+[ \t]*\\)?" ; Pointer.
+ "\\([a-zA-Z0-9_*]+\\)[ \t]*(" ; Name.
))
(defun imenu-example--create-c-index (&optional regexp)
To \"go to\" a special element means applying FUNCTION
to INDEX-NAME, POSITION, and the ARGUMENTS.
-A nested sub-alist element looks like (INDEX-NAME SUB-ALIST).
+A nested sub-alist element looks like (INDEX-NAME . SUB-ALIST).
The function `imenu--subalist-p' tests an element and returns t
if it is a sub-alist.
(defun imenu--truncate-items (menulist)
"Truncate all strings in MENULIST to `imenu-max-item-length'."
(mapc (lambda (item)
- ;; truncate if necessary
+ ;; Truncate if necessary.
(when (and (numberp imenu-max-item-length)
(> (length (car item)) imenu-max-item-length))
(setcar item (substring (car item) 0 imenu-max-item-length)))
(or (not imenu-auto-rescan)
(and imenu-auto-rescan
(> (buffer-size) imenu-auto-rescan-maxout))))
- ;; Get the index; truncate if necessary
+ ;; Get the index; truncate if necessary.
(progn
(setq imenu--index-alist
(save-excursion
;; (INDEX-NAME (INDEX-NAME . INDEX-POSITION) ...)
;; while a bottom-level element looks like
;; (INDEX-NAME . INDEX-POSITION)
+ ;; or
+ ;; (INDEX-NAME INDEX-POSITION FUNCTION ARGUMENTS...)
;; We are only interested in the bottom-level elements, so we need to
- ;; recurse if TAIL is a list.
- (cond ((listp tail)
+ ;; recurse if TAIL is a nested ALIST.
+ (cond ((imenu--subalist-p elt)
(if (setq res (imenu--in-alist str tail))
(setq alist nil)))
((if imenu-name-lookup-function
(save-excursion
(setq name (funcall imenu-extract-index-name-function)))
(and (stringp name)
- ;; [ydi] updated for imenu-use-markers
- (push (cons name (if imenu-use-markers (point-marker) (point)))
+ ;; [ydi] Updated for imenu-use-markers.
+ (push (cons name
+ (if imenu-use-markers (point-marker) (point)))
index-alist)))
index-alist))
;; Use generic expression if possible.
;; so it needs to be careful never to loop!
(defun imenu--generic-function (patterns)
"Return an index alist of the current buffer based on PATTERNS.
-PATTERNS should be an alist which has the same form as
-`imenu-generic-expression'.
+PATTERNS should be an alist with the same form as `imenu-generic-expression'.
+
+If `imenu-generic-skip-comments-and-strings' is non-nil, this ignores
+text inside comments and strings.
+
+If `imenu-case-fold-search' is non-nil, this ignores case.
The return value is an alist of the form
(INDEX-NAME . INDEX-POSITION)
(modify-syntax-entry c (cdr syn) table))
(car syn))))
(goto-char (point-max))
- (unwind-protect ; for syntax table
+ (unwind-protect ; For syntax table.
(save-match-data
(set-syntax-table table)
- ;; map over the elements of imenu-generic-expression
- ;; (typically functions, variables ...)
+ ;; Map over the elements of imenu-generic-expression
+ ;; (typically functions, variables ...).
(dolist (pat patterns)
(let ((menu-title (car pat))
(regexp (nth 1 pat))
;; starting with its title (or nil).
(menu (assoc menu-title index-alist)))
;; Insert the item unless it is already present.
- (unless (member item (cdr menu))
+ (unless (or (member item (cdr menu))
+ (and imenu-generic-skip-comments-and-strings
+ (nth 8 (syntax-ppss))))
(setcdr menu
(cons item (cdr menu)))))
;; Go to the start of the match, to make sure we
function placed in a special index-item."
(if (or (< position (point-min))
(> position (point-max)))
- ;; widen if outside narrowing
+ ;; Widen if outside narrowing.
(widen))
(goto-char position))
(nth 2 index-item) imenu-default-goto-function))
(position (if is-special-item
(cadr index-item) (cdr index-item)))
- (rest (if is-special-item (cddr index-item))))
- (apply function (car index-item) position rest))
+ (args (if is-special-item (cdr (cddr index-item)))))
+ (apply function (car index-item) position args))
(run-hooks 'imenu-after-jump-hook)))
(provide 'imenu)
HCoop / bpt / emacs.git / blobdiff