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authorEli Zaretskii <eliz@gnu.org>2013-12-07 19:21:57 +0200
committerEli Zaretskii <eliz@gnu.org>2013-12-07 19:21:57 +0200
commitce1d7b61f12dcc1b67535b68d9b0655b45fcadb6 (patch)
tree881d03f4f486933482cd2e3851184cd3b172ef1b /lisp/emacs-lisp/regexp-opt.el
parent6630df25238c5a1efa2bc6a0fa7889782e8c91b5 (diff)
parentfa6fa1a1773f255b5efbe52a743b017f4908a6cb (diff)
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Merge from trunk.
Diffstat (limited to 'lisp/emacs-lisp/regexp-opt.el')
-rw-r--r--lisp/emacs-lisp/regexp-opt.el4
1 files changed, 3 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/regexp-opt.el b/lisp/emacs-lisp/regexp-opt.el
index de9966c0af0..cb7828ddd95 100644
--- a/lisp/emacs-lisp/regexp-opt.el
+++ b/lisp/emacs-lisp/regexp-opt.el
@@ -285,7 +285,9 @@ CHARS should be a list of characters."
;;
;; Make sure a caret is not first and a dash is first or last.
(if (and (string-equal charset "") (string-equal bracket ""))
- (concat "[" dash caret "]")
+ (if (string-equal dash "")
+ "\\^" ; [^] is not a valid regexp
+ (concat "[" dash caret "]"))
(concat "[" bracket charset caret dash "]"))))
(provide 'regexp-opt)