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-rw-r--r--lisp/help.el55
1 files changed, 29 insertions, 26 deletions
diff --git a/lisp/help.el b/lisp/help.el
index 52a772779a5..bf0df4358a7 100644
--- a/lisp/help.el
+++ b/lisp/help.el
@@ -237,32 +237,35 @@ C-w Display information on absence of warranty for GNU Emacs."
237(defun function-called-at-point () 237(defun function-called-at-point ()
238 "Return a function around point or else called by the list containing point. 238 "Return a function around point or else called by the list containing point.
239If that doesn't give a function, return nil." 239If that doesn't give a function, return nil."
240 (with-syntax-table emacs-lisp-mode-syntax-table 240 (or (with-syntax-table emacs-lisp-mode-syntax-table
241 (or (condition-case () 241 (or (condition-case ()
242 (save-excursion 242 (save-excursion
243 (or (not (zerop (skip-syntax-backward "_w"))) 243 (or (not (zerop (skip-syntax-backward "_w")))
244 (eq (char-syntax (following-char)) ?w) 244 (eq (char-syntax (following-char)) ?w)
245 (eq (char-syntax (following-char)) ?_) 245 (eq (char-syntax (following-char)) ?_)
246 (forward-sexp -1)) 246 (forward-sexp -1))
247 (skip-chars-forward "'") 247 (skip-chars-forward "'")
248 (let ((obj (read (current-buffer)))) 248 (let ((obj (read (current-buffer))))
249 (and (symbolp obj) (fboundp obj) obj))) 249 (and (symbolp obj) (fboundp obj) obj)))
250 (error nil)) 250 (error nil))
251 (condition-case () 251 (condition-case ()
252 (save-excursion 252 (save-excursion
253 (save-restriction 253 (save-restriction
254 (narrow-to-region (max (point-min) 254 (narrow-to-region (max (point-min)
255 (- (point) 1000)) (point-max)) 255 (- (point) 1000)) (point-max))
256 ;; Move up to surrounding paren, then after the open. 256 ;; Move up to surrounding paren, then after the open.
257 (backward-up-list 1) 257 (backward-up-list 1)
258 (forward-char 1) 258 (forward-char 1)
259 ;; If there is space here, this is probably something 259 ;; If there is space here, this is probably something
260 ;; other than a real Lisp function call, so ignore it. 260 ;; other than a real Lisp function call, so ignore it.
261 (if (looking-at "[ \t]") 261 (if (looking-at "[ \t]")
262 (error "Probably not a Lisp function call")) 262 (error "Probably not a Lisp function call"))
263 (let ((obj (read (current-buffer)))) 263 (let ((obj (read (current-buffer))))
264 (and (symbolp obj) (fboundp obj) obj)))) 264 (and (symbolp obj) (fboundp obj) obj))))
265 (error nil))))) 265 (error nil))))
266 (let* ((str (find-tag-default))
267 (obj (if str (read str))))
268 (and (symbolp obj) (fboundp obj) obj))))
266 269
267 270
268;;; `User' help functions 271;;; `User' help functions