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Fix query-replace-regexp undo feature

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Ensure that non-regexp strings used with `looking-at' are quoted.
* lisp/replace.el (perform-replace): Quote regexp (Bug#37073).
* test/lisp/replace-tests.el (replace-tests-perform-replace-regexp-flag):
New variable.
(replace-tests-with-undo): Use it.
(query-replace-undo-bug37073): Add tests.
This commit is contained in:
Tino Calancha 2019-08-19 17:32:09 +02:00
parent 190565b239
commit beb1d22260
2 changed files with 30 additions and 3 deletions
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7
lisp/replace.el
View file

@ -2614,7 +2614,8 @@ It must return a string."
(setq real-match-data
(save-excursion
(goto-char (match-beginning 0))
(looking-at search-string)
;; We must quote the string (Bug#37073)
(looking-at (regexp-quote search-string))
(match-data t (nth 2 elt)))
noedit
(replace-match-maybe-edit
@ -2624,7 +2625,9 @@ It must return a string."
real-match-data
(save-excursion
(goto-char (match-beginning 0))
(looking-at next-replacement)
(if regexp-flag
(looking-at next-replacement)
(looking-at (regexp-quote next-replacement)))
(match-data t (nth 2 elt))))
;; Set replaced nil to keep in loop
(when (eq def 'undo-all)

26
test/lisp/replace-tests.el
View file

@ -365,6 +365,9 @@ Each element has the format:
(defvar replace-tests-bind-read-string nil
"A string to bind `read-string' and avoid the prompt.")
(defvar replace-tests-perform-replace-regexp-flag t
"Value for regexp-flag argument passed to `perform-replace' in undo tests.")
(defmacro replace-tests-with-undo (input from to char-nums def-chr &rest body)
"Helper to test `query-replace' undo feature.
INPUT is a string to insert in a temporary buffer.
@ -412,7 +415,7 @@ Return the last evalled form in BODY."
(if replace-tests-bind-read-string
(lambda (&rest args) replace-tests-bind-read-string)
(symbol-function 'read-string))))
(perform-replace ,from ,to t t nil))
(perform-replace ,from ,to t replace-tests-perform-replace-regexp-flag nil))
,@body))))
(defun replace-tests--query-replace-undo (&optional comma)
@ -454,5 +457,26 @@ Return the last evalled form in BODY."
input "a" "B" ((?\s . (1 2 3)) (?E . (4)) (?U . (5))) ?q
(string= input (buffer-string))))))
(ert-deftest query-replace-undo-bug37073 ()
"Test for https://debbugs.gnu.org/37073 ."
(let ((input "theorem 1\ntheorem 2\ntheorem 3"))
(should
(replace-tests-with-undo
input "theorem \\([0-9]+\\)"
"theorem \\\\ref{theo_\\1}"
((?\s . (1 2)) (?U . (3)))
?q
(string= input (buffer-string)))))
;; Now run a test with regexp-flag arg in `perform-replace' set to nil
(let ((input " ^theorem$ 1\n ^theorem$ 2\n ^theorem$ 3")
(replace-tests-perform-replace-regexp-flag nil)
(expected " theo 1\n ^theorem$ 2\n ^theorem$ 3"))
(should
(replace-tests-with-undo
input "^theorem$"
"theo"
((?\s . (1 2 4)) (?U . (3)))
?q
(string= expected (buffer-string))))))
;;; replace-tests.el ends here