;;; hideshow.el --- minor mode cmds to selectively display code/comment blocks
-;; Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
-;; 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+;; Copyright (C) 1994-2012 Free Software Foundation, Inc.
;; Author: Thien-Thi Nguyen <ttn@gnu.org>
;; Dan Nicolaescu <dann@ics.uci.edu>
;; Unfortunately, these workarounds do not restore hideshow state.
;; If someone figures out a better way, please let me know.
-;; * Correspondance
+;; * Correspondence
;;
-;; Correspondance welcome; please indicate version number. Send bug
+;; Correspondence welcome; please indicate version number. Send bug
;; reports and inquiries to <ttn@gnu.org>.
;; * Thanks
;;;###autoload
(defvar hs-special-modes-alist
- '((c-mode "{" "}" "/[*/]" nil hs-c-like-adjust-block-beginning)
- (c++-mode "{" "}" "/[*/]" nil hs-c-like-adjust-block-beginning)
+ (mapcar 'purecopy
+ '((c-mode "{" "}" "/[*/]" nil nil)
+ (c++-mode "{" "}" "/[*/]" nil nil)
(bibtex-mode ("@\\S(*\\(\\s(\\)" 1))
- (java-mode "{" "}" "/[*/]" nil hs-c-like-adjust-block-beginning))
+ (java-mode "{" "}" "/[*/]" nil nil)
+ (js-mode "{" "}" "/[*/]" nil)))
"*Alist for initializing the hideshow variables for different modes.
Each element has the form
(MODE START END COMMENT-START FORWARD-SEXP-FUNC ADJUST-BEG-FUNC).
(defvar hs-allow-nesting nil
"*If non-nil, hiding remembers internal blocks.
-This means that when the outer block is shown again, any
-previously hidden internal blocks remain hidden.")
+This means that when the outer block is shown again,
+any previously hidden internal blocks remain hidden.")
(defvar hs-hide-hook nil
"*Hook called (with `run-hooks') at the end of commands to hide text.
(defvar hs-show-hook nil
"*Hook called (with `run-hooks') at the end of commands to show text.
These commands include the toggling commands (when the result is to show
-a block), `hs-show-all' and `hs-show-block'..")
+a block), `hs-show-all' and `hs-show-block'.")
(defvar hs-set-up-overlay nil
"*Function called with one arg, OV, a newly initialized overlay.
["Toggle Hiding" hs-toggle-hiding
:help "Toggle the hiding state of the current block"]
"----"
- ["Hide comments when hiding all"
+ ["Hide comments when hiding all"
(setq hs-hide-comments-when-hiding-all
(not hs-hide-comments-when-hiding-all))
:help "If t also hide comment blocks when doing `hs-hide-all'"
(overlay-put ov 'display nil))))
(overlay-put ov 'invisible (and hide-p 'hs)))
+(defun hs-looking-at-block-start-p ()
+ "Return non-nil if the point is at the block start."
+ (and (looking-at hs-block-start-regexp)
+ (save-match-data (not (nth 8 (syntax-ppss))))))
+
(defun hs-forward-sexp (match-data arg)
"Adjust point based on MATCH-DATA and call `hs-forward-sexp-func' w/ ARG.
Original match data is restored upon return."
and then further adjusted to be at the end of the line."
(if comment-reg
(hs-hide-comment-region (car comment-reg) (cadr comment-reg) end)
- (when (looking-at hs-block-start-regexp)
- (let* ((mdata (match-data t))
- (pure-p (match-end 0))
- (p
- ;; `p' is the point at the end of the block beginning,
- ;; which may need to be adjusted
- (save-excursion
- (goto-char (funcall (or hs-adjust-block-beginning
- 'identity)
- pure-p))
- ;; whatever the adjustment, we move to eol
- (line-end-position)))
- (q
- ;; `q' is the point at the end of the block
- (progn (hs-forward-sexp mdata 1)
- (end-of-line)
- (point)))
- ov)
- (when (and (< p (point)) (> (count-lines p q) 1))
+ (when (hs-looking-at-block-start-p)
+ (let ((mdata (match-data t))
+ (header-end (match-end 0))
+ p q ov)
+ ;; `p' is the point at the end of the block beginning, which
+ ;; may need to be adjusted
+ (save-excursion
+ (if hs-adjust-block-beginning
+ (goto-char (funcall hs-adjust-block-beginning
+ header-end))
+ (goto-char header-end))
+ (setq p (line-end-position)))
+ ;; `q' is the point at the end of the block
+ (hs-forward-sexp mdata 1)
+ (setq q (if (looking-back hs-block-end-regexp)
+ (match-beginning 0)
+ (point)))
+ (when (and (< p q) (> (count-lines p q) 1))
(cond ((and hs-allow-nesting (setq ov (hs-overlay-at p)))
(delete-overlay ov))
((not hs-allow-nesting)
(hs-discard-overlays p q)))
- (hs-make-overlay p q 'code (- pure-p p)))
- (goto-char (if end q (min p pure-p)))))))
+ (hs-make-overlay p q 'code (- header-end p)))
+ (goto-char (if end q (min p header-end)))))))
(defun hs-inside-comment-p ()
"Return non-nil if point is inside a comment, otherwise nil.
(let ((done nil)
(here (point)))
;; look if current line is block start
- (if (looking-at hs-block-start-regexp)
+ (if (hs-looking-at-block-start-p)
(point)
;; look backward for the start of a block that contains the cursor
(while (and (re-search-backward hs-block-start-regexp nil t)
- (not (setq done
- (< here (save-excursion
- (hs-forward-sexp (match-data t) 1)
- (point)))))))
+ ;; go again if in a comment or a string
+ (or (save-match-data (nth 8 (syntax-ppss)))
+ (not (setq done
+ (< here (save-excursion
+ (hs-forward-sexp (match-data t) 1)
+ (point))))))))
(if done
(point)
(goto-char here)
(forward-comment (buffer-size))
(and (< (point) maxp)
(re-search-forward hs-block-start-regexp maxp t)))
- (if (> arg 1)
- (hs-hide-level-recursive (1- arg) minp maxp)
- (goto-char (match-beginning hs-block-start-mdata-select))
- (hs-hide-block-at-point t)))
+ (when (save-match-data
+ (not (nth 8 (syntax-ppss)))) ; not inside comments or strings
+ (if (> arg 1)
+ (hs-hide-level-recursive (1- arg) minp maxp)
+ (goto-char (match-beginning hs-block-start-mdata-select))
+ (hs-hide-block-at-point t))))
(goto-char maxp))
(defmacro hs-life-goes-on (&rest body)
(end-of-line)
(when (and (not c-reg)
(hs-find-block-beginning)
- (looking-at hs-block-start-regexp))
+ (hs-looking-at-block-start-p))
;; point is inside a block
(goto-char (match-end 0)))))
(end-of-line)
(hs-overlay-at (point))))
+;; This function is not used anymore (Bug#700).
(defun hs-c-like-adjust-block-beginning (initial)
"Adjust INITIAL, the buffer position after `hs-block-start-regexp'.
Actually, point is never moved; a new position is returned that is
(<= (count-lines (car c-reg) (nth 1 c-reg)) 1)))
(message "(not enough comment lines to hide)"))
((or c-reg
- (looking-at hs-block-start-regexp)
+ (hs-looking-at-block-start-p)
(hs-find-block-beginning))
(hs-hide-block-at-point end c-reg)
(run-hooks 'hs-hide-hook))))))
q (cadr c-reg))))
((and (hs-find-block-beginning)
;; ugh, fresh match-data
- (looking-at hs-block-start-regexp))
+ (hs-looking-at-block-start-p))
(setq p (point)
q (progn (hs-forward-sexp (match-data t) 1) (point)))))
(when (and p q)
(hs-discard-overlays p q)
- (goto-char (if end q (1+ p)))))
- (run-hooks 'hs-show-hook))))
+ (goto-char (if end q (1+ p))))))
+ (run-hooks 'hs-show-hook)))
(defun hs-hide-level (arg)
"Hide all blocks ARG levels below this block.
;;;###autoload
(define-minor-mode hs-minor-mode
- "Minor mode to selectively hide/show code and comment blocks.
+ "Minor mode to selectively hide/show code and comment blocks.
When hideshow minor mode is on, the menu bar is augmented with hideshow
commands and the hideshow commands are enabled.
The value '(hs . t) is added to `buffer-invisibility-spec'.
Key bindings:
\\{hs-minor-mode-map}"
- :group 'hideshow
+ :group 'hideshow
:lighter " hs"
:keymap hs-minor-mode-map
(setq hs-headline nil)
(provide 'hideshow)
-;; arch-tag: 378b6852-e82a-466a-aee8-d9c73859a65e
;;; hideshow.el ends here
HCoop / bpt / emacs.git / blobdiff