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authorFilipp Gunbin <fgunbin@fastmail.fm>2016-10-26 14:31:12 -0400
committerStefan Monnier <monnier@iro.umontreal.ca>2016-10-26 14:31:12 -0400
commit4e45b55a9566189af6e40449954504ea7c47fa90 (patch)
tree79a6e472f68ec320cc0128eb15ec42e78eb58cbb /lisp/shell.el
parent5edf76ba15fb012e9cb3112ee4a2c9ef4b02f20e (diff)
downloademacs-4e45b55a9566189af6e40449954504ea7c47fa90.tar.gz
* lisp/shell.el (shell--unquote&requote-argument): Match data misuse
* lisp/shell.el (shell--unquote&requote-argument): Fix off-by-one thinko. Don't use match data after a failed string-match.
Diffstat (limited to 'lisp/shell.el')
-rw-r--r--lisp/shell.el10
1 files changed, 7 insertions, 3 deletions
diff --git a/lisp/shell.el b/lisp/shell.el
index 1f019f20f3a..34bd77282ab 100644
--- a/lisp/shell.el
+++ b/lisp/shell.el
@@ -384,11 +384,15 @@ Thus, this does not include the shell's current directory.")
((eq (aref qstr match) ?\") (setq dquotes (not dquotes)))
((eq (aref qstr match) ?\')
(cond
+ ;; Treat single quote as text if inside double quotes.
(dquotes (funcall push "'" (match-end 0)))
- ((< match (1+ (length qstr)))
+ ((< (1+ match) (length qstr))
(let ((end (string-match "'" qstr (1+ match))))
- (funcall push (substring qstr (1+ match) end)
- (or end (length qstr)))))
+ (unless end
+ (setq end (length qstr))
+ (set-match-data (list match (length qstr))))
+ (funcall push (substring qstr (1+ match) end) end)))
+ ;; Ignore if at the end of string.
(t nil)))
(t (error "Unexpected case in shell--unquote&requote-argument!")))
(setq qpos (match-end 0)))