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bug#22541: 25.0.50; highlight-regexp from isearch has is case-sensitive
|
From: |
Tino Calancha |
|
Subject: |
bug#22541: 25.0.50; highlight-regexp from isearch has is case-sensitive even if case-fold is active |
|
Date: |
Thu, 27 Apr 2017 23:22:05 +0900 |
|
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) |
Juri Linkov <juri@linkov.net> writes:
Thanks for the feedback!
>> -(defun hi-lock-set-pattern (regexp face)
>> - "Highlight REGEXP with face FACE."
>> +(defun hi-lock-set-pattern (regexp face &optional case-fold)
>> + "Highlight REGEXP with face FACE.
>> +If optional arg CASE-FOLD is non-nil, then bind `case-fold-search' to it."
>> ;; Hashcons the regexp, so it can be passed to remove-overlays later.
>> (setq regexp (hi-lock--hashcons regexp))
>> - (let ((pattern (list regexp (list 0 (list 'quote face) 'prepend))))
>> + (let ((pattern (list (if (eq case-fold 'undefined)
>> + regexp
>> + (cons regexp
>> + (byte-compile
>> + `(lambda (limit)
>> + (let ((case-fold-search ,case-fold))
>> + (re-search-forward ,regexp limit t))))))
>> + (list 0 (list 'quote face) 'prepend))))
>
> Do you need to remember also the value of ‘case-fold-search’
> (together with ‘regexp’)?
AFAICT i don't need it.
>> @@ -1950,7 +1950,12 @@ isearch-highlight-regexp
>> (regexp-quote s))))
>> isearch-string ""))
>> (t (regexp-quote isearch-string)))))
>> - (hi-lock-face-buffer regexp (hi-lock-read-face-name)))
>> + (hi-lock-face-buffer regexp (hi-lock-read-face-name)
>> + (if (and (eq isearch-case-fold-search t)
>> + search-upper-case)
>> + (isearch-no-upper-case-p
>> + isearch-string isearch-regexp)
>> + isearch-case-fold-search)))
>> (and isearch-recursive-edit (exit-recursive-edit)))
>
> If this works reliably, then we could remove that ugly hack
> from ‘isearch-highlight-regexp’, I mean the one with the comment
> “Turn isearch-string into a case-insensitive regexp”.
That's right. We don't need such trick here anymore. But this hack
turned ut to be useful in hi-lock.el.
The new patch, in addition to fix this bug report, it also
helps with the 5. in bug#22520, that is:
emacs -Q
M-s hr t RET RET ; Highlight with regexp "[Tt]"
M-s hu t RET ; Unhighlight the buffer.
--8<-----------------------------cut here---------------start------------->8---
>From 5183897b88b93060ce391f166cdeebf605785362 Mon Sep 17 00:00:00 2001
From: Tino Calancha <tino.calancha@gmail.com>
Date: Thu, 27 Apr 2017 23:02:41 +0900
Subject: [PATCH] highlight-regexp: Honor case-fold-search
* lisp/hi-lock.el (hi-lock-face-buffer, hi-lock-set-pattern):
Add optional arg CASE-FOLD. All callers updated.
* lisp/isearch.el (isearch-highlight-regexp): Call hi-lock-face-buffer
with 3 arguments.
---
lisp/hi-lock.el | 30 +++++++++++++++++++-----------
lisp/isearch.el | 7 ++++++-
2 files changed, 25 insertions(+), 12 deletions(-)
diff --git a/lisp/hi-lock.el b/lisp/hi-lock.el
index 5139e01fa8..55ad3ccb58 100644
--- a/lisp/hi-lock.el
+++ b/lisp/hi-lock.el
@@ -432,7 +432,7 @@ hi-lock-line-face-buffer
;;;###autoload
(defalias 'highlight-regexp 'hi-lock-face-buffer)
;;;###autoload
-(defun hi-lock-face-buffer (regexp &optional face)
+(defun hi-lock-face-buffer (regexp &optional face case-fold)
"Set face of each match of REGEXP to FACE.
Interactively, prompt for REGEXP using `read-regexp', then FACE.
Use the global history list for FACE.
@@ -444,10 +444,11 @@ hi-lock-face-buffer
(list
(hi-lock-regexp-okay
(read-regexp "Regexp to highlight" 'regexp-history-last))
- (hi-lock-read-face-name)))
+ (hi-lock-read-face-name)
+ case-fold-search))
(or (facep face) (setq face 'hi-yellow))
(unless hi-lock-mode (hi-lock-mode 1))
- (hi-lock-set-pattern regexp face))
+ (hi-lock-set-pattern regexp face case-fold))
;;;###autoload
(defalias 'highlight-phrase 'hi-lock-face-phrase-buffer)
@@ -689,11 +690,17 @@ hi-lock-read-face-name
(add-to-list 'hi-lock-face-defaults face t))
(intern face)))
-(defun hi-lock-set-pattern (regexp face)
+(defun hi-lock-set-pattern (regexp face &optional case-fold)
"Highlight REGEXP with face FACE."
;; Hashcons the regexp, so it can be passed to remove-overlays later.
(setq regexp (hi-lock--hashcons regexp))
- (let ((pattern (list regexp (list 0 (list 'quote face) 'prepend))))
+ (let ((pattern (list (if (eq case-fold 'undefined)
+ regexp
+ (byte-compile
+ `(lambda (limit)
+ (let ((case-fold-search ,case-fold))
+ (re-search-forward ,regexp limit t)))))
+ (list 0 (list 'quote face) 'prepend))))
;; Refuse to highlight a text that is already highlighted.
(if (assoc regexp hi-lock-interactive-patterns)
(add-to-list 'hi-lock--unused-faces (face-name face))
@@ -712,12 +719,13 @@ hi-lock-set-pattern
(+ range-max (max 0 (- (point-min) range-min))))))
(save-excursion
(goto-char search-start)
- (while (re-search-forward regexp search-end t)
- (let ((overlay (make-overlay (match-beginning 0) (match-end 0))))
- (overlay-put overlay 'hi-lock-overlay t)
- (overlay-put overlay 'hi-lock-overlay-regexp regexp)
- (overlay-put overlay 'face face))
- (goto-char (match-end 0)))))))))
+ (let ((case-fold-search case-fold))
+ (while (re-search-forward regexp search-end t)
+ (let ((overlay (make-overlay (match-beginning 0) (match-end
0))))
+ (overlay-put overlay 'hi-lock-overlay t)
+ (overlay-put overlay 'hi-lock-overlay-regexp regexp)
+ (overlay-put overlay 'face face))
+ (goto-char (match-end 0))))))))))
(defun hi-lock-set-file-patterns (patterns)
"Replace file patterns list with PATTERNS and refontify."
diff --git a/lisp/isearch.el b/lisp/isearch.el
index c34739d638..250d37b45e 100644
--- a/lisp/isearch.el
+++ b/lisp/isearch.el
@@ -1950,7 +1950,12 @@ isearch-highlight-regexp
(regexp-quote s))))
isearch-string ""))
(t (regexp-quote isearch-string)))))
- (hi-lock-face-buffer regexp (hi-lock-read-face-name)))
+ (hi-lock-face-buffer regexp (hi-lock-read-face-name)
+ (if (and (eq isearch-case-fold-search t)
+ search-upper-case)
+ (isearch-no-upper-case-p
+ isearch-string isearch-regexp)
+ isearch-case-fold-search)))
(and isearch-recursive-edit (exit-recursive-edit)))
--
2.11.0
>From 32ec762b9459cf2a1b50217fa061c70541c0a241 Mon Sep 17 00:00:00 2001
From: Tino Calancha <tino.calancha@gmail.com>
Date: Thu, 27 Apr 2017 23:05:01 +0900
Subject: [PATCH] Fix hi-lock-unface-buffer from last commit
Perform the matches of REGEXP as `isearch-forward' i.e., in interactive
calls determine the case fold with `search-upper-case' and
`case-fold-search' (Bug#22541).
* lisp/hi-lock.el (hi-lock-face-buffer): Update docstring.
Determine the case fold with `search-upper-case' and
`case-fold-search'.
(hi-lock--regexps-at-point, hi-lock-unface-buffer):
Handle when pattern is a cons (REGEXP . FUNCTION).
(hi-lock-read-face-name): Update docstring.
(hi-lock--case-insensitive-regexp,
hi-lock--case-insensitive-regexp-p): New defuns.
(hi-lock-set-pattern, hi-lock-unface-buffer): Use them.
* lisp/isearch.el (isearch-highlight-regexp): Delete hack for
case-insensitive search; this is now handled in
hi-lock-face-buffer.
* test/lisp/hi-lock-tests.el (hi-lock-face-buffer-test, hi-lock-bug22520):
Add tests.
---
lisp/hi-lock.el | 153 +++++++++++++++++++++++++++++++++------------
lisp/isearch.el | 10 +--
test/lisp/hi-lock-tests.el | 91 ++++++++++++++++++++++++++-
3 files changed, 204 insertions(+), 50 deletions(-)
diff --git a/lisp/hi-lock.el b/lisp/hi-lock.el
index 55ad3ccb58..5862974844 100644
--- a/lisp/hi-lock.el
+++ b/lisp/hi-lock.el
@@ -434,6 +434,7 @@ 'highlight-regexp
;;;###autoload
(defun hi-lock-face-buffer (regexp &optional face case-fold)
"Set face of each match of REGEXP to FACE.
+If optional arg CASE-FOLD is non-nil, then bind `case-fold-search' to it.
Interactively, prompt for REGEXP using `read-regexp', then FACE.
Use the global history list for FACE.
@@ -441,11 +442,15 @@ hi-lock-face-buffer
use overlays for highlighting. If overlays are used, the
highlighting will not update as you type."
(interactive
- (list
- (hi-lock-regexp-okay
- (read-regexp "Regexp to highlight" 'regexp-history-last))
- (hi-lock-read-face-name)
- case-fold-search))
+ (let* ((regexp
+ (hi-lock-regexp-okay
+ (read-regexp "Regexp to highlight" 'regexp-history-last)))
+ (face (hi-lock-read-face-name))
+ (case-fold
+ (if search-upper-case
+ (isearch-no-upper-case-p regexp t)
+ case-fold-search)))
+ (list regexp face case-fold)))
(or (facep face) (setq face 'hi-yellow))
(unless hi-lock-mode (hi-lock-mode 1))
(hi-lock-set-pattern regexp face case-fold))
@@ -531,10 +536,17 @@ hi-lock--regexps-at-point
;; highlighted text at point. Use this later in
;; during completing-read.
(dolist (hi-lock-pattern hi-lock-interactive-patterns)
- (let ((regexp (car hi-lock-pattern)))
- (if (string-match regexp hi-text)
- (push regexp regexps)))))))
- regexps))
+ (let ((regexp-or-fn (car hi-lock-pattern)))
+ (cond ((stringp regexp-or-fn)
+ (when (string-match regexp-or-fn hi-text)
+ (push regexp-or-fn regexps)))
+ (t
+ (with-temp-buffer
+ (insert hi-text)
+ (goto-char 1)
+ (when (funcall regexp-or-fn nil)
+ (push regexp-or-fn regexps)))))))
+ ))) regexps))
(defvar-local hi-lock--unused-faces nil
"List of faces that is not used and is available for highlighting new text.
@@ -562,13 +574,15 @@ hi-lock-unface-buffer
(cons
`keymap
(cons "Select Pattern to Unhighlight"
- (mapcar (lambda (pattern)
- (list (car pattern)
- (format
- "%s (%s)" (car pattern)
- (hi-lock-keyword->face pattern))
- (cons nil nil)
- (car pattern)))
+ (mapcar (lambda (pattern)
+ (let ((regexp (or (car-safe (car pattern))
+ (car pattern))))
+ (list regexp
+ (format
+ "%s (%s)" regexp
+ (hi-lock-keyword->face pattern))
+ (cons nil nil)
+ regexp)))
hi-lock-interactive-patterns))))
;; If the user clicks outside the menu, meaning that they
;; change their mind, x-popup-menu returns nil, and
@@ -582,16 +596,30 @@ hi-lock-unface-buffer
(error "No highlighting to remove"))
;; Infer the regexp to un-highlight based on cursor position.
(let* ((defaults (or (hi-lock--regexps-at-point)
- (mapcar #'car hi-lock-interactive-patterns))))
- (list
- (completing-read (if (null defaults)
- "Regexp to unhighlight: "
- (format "Regexp to unhighlight (default %s): "
- (car defaults)))
- hi-lock-interactive-patterns
- nil t nil nil defaults))))))
- (dolist (keyword (if (eq regexp t) hi-lock-interactive-patterns
- (list (assoc regexp hi-lock-interactive-patterns))))
+ (mapcar (lambda (x)
+ (or (car-safe (car x))
+ (car x)))
+ hi-lock-interactive-patterns)))
+ (regexp (completing-read (if (null defaults)
+ "Regexp to unhighlight: "
+ (format "Regexp to unhighlight (default
%s): "
+ (car defaults)))
+ hi-lock-interactive-patterns
+ nil nil nil nil defaults)))
+ (when (and (or (not search-upper-case)
+ (isearch-no-upper-case-p regexp t))
+ case-fold-search
+ (not (hi-lock--case-insensitive-regexp-p regexp)))
+ (setq regexp (hi-lock--case-insensitive-regexp regexp)))
+ (list regexp)))))
+ (let* ((patterns hi-lock-interactive-patterns)
+ (keys (or (assoc regexp patterns)
+ (assoc
+ (assoc regexp (mapcar #'car patterns))
+ patterns))))
+ (dolist (keyword (if (eq regexp t)
+ patterns
+ (list keys)))
(when keyword
(let ((face (hi-lock-keyword->face keyword)))
;; Make `face' the next one to use by default.
@@ -606,8 +634,10 @@ hi-lock-unface-buffer
(setq hi-lock-interactive-patterns
(delq keyword hi-lock-interactive-patterns))
(remove-overlays
- nil nil 'hi-lock-overlay-regexp (hi-lock--hashcons (car keyword)))
- (font-lock-flush))))
+ nil nil 'hi-lock-overlay-regexp (hi-lock--hashcons
+ (or (car-safe (car keyword))
+ (car keyword))))
+ (font-lock-flush)))))
;;;###autoload
(defun hi-lock-write-interactive-patterns ()
@@ -690,23 +720,67 @@ hi-lock-read-face-name
(add-to-list 'hi-lock-face-defaults face t))
(intern face)))
+(defun hi-lock--case-insensitive-regexp-p (regexp)
+ (let (case-fold-search)
+ (and (string-match-p regexp (downcase regexp))
+ (string-match-p regexp (upcase regexp)))))
+
+(defun hi-lock--case-insensitive-regexp (regexp)
+ "Turn regexp into a case-insensitive regexp."
+ (let ((count 0)
+ (upper-re "[[:upper:]]")
+ (slash-upper-re "\\(\\\\\\)\\([[:upper:]]\\)")
+ case-fold-search)
+ (cond ((or (hi-lock--case-insensitive-regexp-p regexp)
+ (and (string-match upper-re regexp)
+ (not (string-match slash-upper-re regexp))))
+ regexp)
+ (t
+ (let ((string regexp))
+ (while (string-match slash-upper-re string)
+ (setq string (replace-match "" t t string 1)))
+ (setq regexp string)
+ (mapconcat
+ (lambda (c)
+ (let ((s (string c)))
+ (cond ((or (eq c ?\\)
+ (and (= count 1) (string= s (upcase s))))
+ (setq count (1+ count)) s)
+ (t
+ (setq count 0)
+ (if (string-match "[[:alpha:]]" s)
+ (format "[%s%s]" (upcase s) (downcase s))
+ (regexp-quote s))))))
+ regexp ""))))))
+
(defun hi-lock-set-pattern (regexp face &optional case-fold)
- "Highlight REGEXP with face FACE."
+ "Highlight REGEXP with face FACE.
+If optional arg CASE-FOLD is non-nil, then bind `case-fold-search' to it."
;; Hashcons the regexp, so it can be passed to remove-overlays later.
(setq regexp (hi-lock--hashcons regexp))
- (let ((pattern (list (if (eq case-fold 'undefined)
+ (let* ((pattern (list (if (eq case-fold 'undefined)
regexp
- (byte-compile
- `(lambda (limit)
- (let ((case-fold-search ,case-fold))
- (re-search-forward ,regexp limit t)))))
- (list 0 (list 'quote face) 'prepend))))
+ (cons regexp
+ (byte-compile
+ `(lambda (limit)
+ (let ((case-fold-search ,case-fold))
+ (re-search-forward ,regexp limit t))))))
+ (list 0 (list 'quote face) 'prepend)))
+ (regexp-fold
+ (cond ((not (consp (car pattern)))
+ (car pattern))
+ (t
+ (if (not case-fold)
+ (caar pattern)
+ (hi-lock--case-insensitive-regexp (caar pattern)))))))
;; Refuse to highlight a text that is already highlighted.
- (if (assoc regexp hi-lock-interactive-patterns)
+ (if (or (assoc regexp hi-lock-interactive-patterns)
+ (assoc regexp-fold hi-lock-interactive-patterns)
+ (assoc regexp-fold (mapcar #'car hi-lock-interactive-patterns)))
(add-to-list 'hi-lock--unused-faces (face-name face))
- (push pattern hi-lock-interactive-patterns)
(if (and font-lock-mode (font-lock-specified-p major-mode))
- (progn
+ (progn
+ (setq pattern (list regexp-fold (list 0 (list 'quote face)
'prepend)))
(font-lock-add-keywords nil (list pattern) t)
(font-lock-flush))
(let* ((range-min (- (point) (/ hi-lock-highlight-range 2)))
@@ -725,7 +799,8 @@ hi-lock-set-pattern
(overlay-put overlay 'hi-lock-overlay t)
(overlay-put overlay 'hi-lock-overlay-regexp regexp)
(overlay-put overlay 'face face))
- (goto-char (match-end 0))))))))))
+ (goto-char (match-end 0)))))))
+ (push pattern hi-lock-interactive-patterns))))
(defun hi-lock-set-file-patterns (patterns)
"Replace file patterns list with PATTERNS and refontify."
diff --git a/lisp/isearch.el b/lisp/isearch.el
index 250d37b45e..2496e092a6 100644
--- a/lisp/isearch.el
+++ b/lisp/isearch.el
@@ -1940,15 +1940,7 @@ isearch-highlight-regexp
(isearch-no-upper-case-p
isearch-string isearch-regexp)
isearch-case-fold-search)
- ;; Turn isearch-string into a case-insensitive
- ;; regexp.
- (mapconcat
- (lambda (c)
- (let ((s (string c)))
- (if (string-match "[[:alpha:]]" s)
- (format "[%s%s]" (upcase s) (downcase s))
- (regexp-quote s))))
- isearch-string ""))
+ isearch-string)
(t (regexp-quote isearch-string)))))
(hi-lock-face-buffer regexp (hi-lock-read-face-name)
(if (and (eq isearch-case-fold-search t)
diff --git a/test/lisp/hi-lock-tests.el b/test/lisp/hi-lock-tests.el
index 2cb662cfac..1d97e1f054 100644
--- a/test/lisp/hi-lock-tests.el
+++ b/test/lisp/hi-lock-tests.el
@@ -22,6 +22,7 @@
(require 'ert)
(require 'hi-lock)
+(eval-when-compile (require 'cl-lib))
(ert-deftest hi-lock-bug26666 ()
"Test for http://debbugs.gnu.org/26666 ."
@@ -29,12 +30,98 @@
(with-temp-buffer
(insert "a A b B\n")
(cl-letf (((symbol-function 'completing-read)
- (lambda (prompt coll x y z hist defaults)
- (car defaults))))
+ (lambda (prompt coll x y z hist defaults)
+ (car defaults))))
(dotimes (_ 2)
(let ((face (hi-lock-read-face-name)))
(hi-lock-set-pattern "a" face))))
(should (equal hi-lock--unused-faces (cdr faces))))))
+(defun hi-lock--count (face)
+ (let ((count 0))
+ (save-excursion
+ (goto-char (point-min))
+ (cond ((and font-lock-mode (font-lock-specified-p major-mode))
+ (when (and (consp (get-text-property (point) 'face))
+ (memq 'hi-yellow (get-text-property (point) 'face)))
+ (cl-incf count))
+ (while (next-property-change (point))
+ (goto-char (next-property-change (point)))
+ (when (and (consp (get-text-property (point) 'face))
+ (memq 'hi-yellow (get-text-property (point) 'face)))
+ (cl-incf count))))
+ (t
+ (dolist (ov (car (overlay-lists)))
+ (let ((props (memq 'face (overlay-properties ov))))
+ (when (eq (cadr props) face)
+ (cl-incf count)))))))
+ count))
+
+(defun hi-lock--highlight-and-count (regexp face case-fold)
+ "Highlight REGEXP with FACE with case fold CASE-FOLD.
+Return number of matches."
+ (hi-lock-unface-buffer t)
+ (should (eq 0 (hi-lock--count face)))
+ (hi-lock-face-buffer regexp face case-fold)
+ (hi-lock--count face))
+
+(defun hi-lock--interactive-test-1 (regexp face res ucase cfold)
+ (hi-lock-unface-buffer t)
+ (should (eq 0 (hi-lock--count face)))
+ (cl-letf (((symbol-function 'read-regexp)
+ (lambda (x y) (ignore x y) regexp))
+ ((symbol-function 'hi-lock-read-face-name)
+ (lambda () face)))
+ (setq search-upper-case ucase
+ case-fold-search cfold)
+ (call-interactively 'hi-lock-face-buffer)
+ (should (= res (hi-lock--count face)))))
+
+;; Interactive test should not depend on the major mode.
+(defun hi-lock--interactive-test (regexp face res ucase cfold)
+ (lisp-interaction-mode)
+ (hi-lock--interactive-test-1 regexp face res ucase cfold)
+ (fundamental-mode)
+ (hi-lock--interactive-test-1 regexp face res ucase cfold))
+
+;; In batch calls to `hi-lock-face-buffer', case is given by
+;; its third argument. In interactive calls, case depends
+;; on `search-upper-case' and `case-fold-search'.
+(ert-deftest hi-lock-face-buffer-test ()
+ "Test for http://debbugs.gnu.org/22541 ."
+ (let ((face 'hi-yellow)
+ (regexp "a")
+ case-fold-search search-upper-case)
+ (with-temp-buffer
+ (insert "a A\n")
+ (should (= 1 (hi-lock--highlight-and-count regexp face nil)))
+ (should (= 2 (hi-lock--highlight-and-count regexp face t)))
+ ;; Case depends on the regexp.
+ (hi-lock--interactive-test regexp face 2 t nil)
+ (hi-lock--interactive-test "A" face 1 t nil)
+ (hi-lock--interactive-test "\\A" face 2 t nil)
+ ;; Case depends on `case-fold-search'.
+ (hi-lock--interactive-test "a" face 1 nil nil)
+ (hi-lock--interactive-test "A" face 1 nil nil)
+ (hi-lock--interactive-test "\\A" face 1 nil nil)
+ ;;
+ (hi-lock--interactive-test "a" face 2 nil t)
+ (hi-lock--interactive-test "A" face 2 nil t)
+ (hi-lock--interactive-test "\\A" face 2 nil t))))
+
+(ert-deftest hi-lock-bug22520 ()
+ "Test for http://debbugs.gnu.org/22520 ."
+ (with-temp-buffer
+ (erase-buffer)
+ (insert "foo and Foo")
+ (dolist (ucase '(nil t))
+ (dolist (cfold '(nil t))
+ (let ((res (cond ((null ucase)
+ (if cfold 2 1))
+ (t 2))))
+ (hi-lock--interactive-test "f" 'hi-yellow res ucase cfold)
+ (hi-lock-unface-buffer "f")
+ (should (= 0 (hi-lock--count 'hi-yellow))))))))
+
(provide 'hi-lock-tests)
;;; hi-lock-tests.el ends here
--
2.11.0
--8<-----------------------------cut here---------------end--------------->8---
In GNU Emacs 26.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.11)
of 2017-04-27
Repository revision: 79c5ea9911a9aba7db0ba0e367e06507cee2fc02