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authorPeder O. Klingenberg <peder@klingenberg.no>2016-08-30 14:44:16 +0200
committerNoam Postavsky <npostavs@gmail.com>2016-09-07 19:02:43 -0400
commit55dde6c1a21a792d3d75c19e612c74dd054aaf1e (patch)
tree44978e45c4fe9b0da8c5a9a80c838cb34a9f3f04
parent32078ec8c444cd886a51c1a63103b230371d7a54 (diff)
Avoid error in icalendar--read-element
* lisp/calendar/icalendar.el (icalendar--read-element): Avoid a regex stack overflow by not using regex to extract values from calendar events. (Bug#24315)
-rw-r--r--lisp/calendar/icalendar.el8
1 files changed, 5 insertions, 3 deletions
diff --git a/lisp/calendar/icalendar.el b/lisp/calendar/icalendar.el
index 386c554c06..c88f4abcb6 100644
--- a/lisp/calendar/icalendar.el
+++ b/lisp/calendar/icalendar.el
@@ -361,7 +361,8 @@ Pass arguments REGEXP REP STRING FIXEDCASE LITERAL to
INVALUE gives the current iCalendar element we are reading.
INPARAMS gives the current parameters.....
This function calls itself recursively for each nested calendar element
-it finds."
+it finds. The current buffer should be an unfolded buffer as returned
+from `icalendar--get-unfolded-buffer'."
(let (element children line name params param param-name param-value
value
(continue t))
@@ -391,8 +392,9 @@ it finds."
(unless (looking-at ":")
(error "Oops"))
(forward-char 1)
- (re-search-forward "\\(.*\\)\\(\r?\n[ \t].*\\)*" nil t)
- (setq value (icalendar--rris "\r?\n[ \t]" "" (match-string 0)))
+ (let ((start (point)))
+ (end-of-line)
+ (setq value (buffer-substring start (point))))
(setq line (list name params value))
(cond ((eq name 'BEGIN)
(setq children