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bug#25482: 26.0.50; Allow setting `query-replace-from-to-separator` to n


From: Thierry Volpiatto
Subject: bug#25482: 26.0.50; Allow setting `query-replace-from-to-separator` to nil
Date: Fri, 20 Jan 2017 06:54:02 +0100
User-agent: mu4e 0.9.19; emacs 24.5.1

Here the patch updated:

1 file changed, 25 insertions(+), 16 deletions(-)
lisp/replace.el | 41 +++++++++++++++++++++++++----------------

modified   lisp/replace.el
@@ -79,15 +79,15 @@ That becomes the \"string to replace\".")
 to the minibuffer that reads the string to replace, or invoke replacements
 from Isearch by using a key sequence like `C-s C-s M-%'." "24.3")
 
-(defcustom query-replace-from-to-separator
-  (propertize (if (char-displayable-p ?→) " → " " -> ")
-              'face 'minibuffer-prompt)
-  "String that separates FROM and TO in the history of replacement pairs."
-  ;; Avoids error when attempt to autoload char-displayable-p fails
-  ;; while preparing to dump, also stops customize-rogue listing this.
-  :initialize 'custom-initialize-delay
+(defcustom query-replace-from-to-separator " → "
+  "String that separates FROM and TO in the history of replacement pairs.
+When nil the default separator \" -> \" will be used as a plain string
+and the pair will not be added to `query-replace-history'
+\(Same behavior as in emacs 24.5)."
   :group 'matching
-  :type '(choice string (sexp :tag "Display specification"))
+  :type '(choice
+          (const :tag "Disabled" nil)
+          string)
   :version "25.1")
 
 (defcustom query-replace-from-history-variable 'query-replace-history
@@ -165,9 +165,15 @@ The return value can also be a pair (FROM . TO) indicating 
that the user
 wants to replace FROM with TO."
   (if query-replace-interactive
       (car (if regexp-flag regexp-search-ring search-ring))
-    ;; Reevaluating will check char-displayable-p that is
-    ;; unavailable while preparing to dump.
-    (custom-reevaluate-setting 'query-replace-from-to-separator)
+    (when (stringp query-replace-from-to-separator)
+      (setq query-replace-from-to-separator
+            (propertize (if (char-displayable-p
+                             (string-to-char
+                              (replace-regexp-in-string
+                               " " "" query-replace-from-to-separator)))
+                            query-replace-from-to-separator
+                          " -> ")
+                        'face 'minibuffer-prompt)))
     (let* ((history-add-new-input nil)
           (separator
            (when query-replace-from-to-separator
@@ -185,9 +191,13 @@ wants to replace FROM with TO."
             (symbol-value query-replace-from-history-variable)))
           (minibuffer-allow-text-properties t) ; separator uses text-properties
           (prompt
-           (if (and query-replace-defaults separator)
-               (format "%s (default %s): " prompt (car minibuffer-history))
-             (format "%s: " prompt)))
+           (cond ((and query-replace-defaults separator)
+                   (format "%s (default %s): " prompt (car 
minibuffer-history)))
+                  (query-replace-defaults
+                   (format "%s (default %s -> %s): " prompt
+                           (query-replace-descr (caar query-replace-defaults))
+                           (query-replace-descr (cdar 
query-replace-defaults))))
+                  (t (format "%s: " prompt))))
           (from
            ;; The save-excursion here is in case the user marks and copies
            ;; a region in order to specify the minibuffer input.
@@ -200,8 +210,7 @@ wants to replace FROM with TO."
                 (if regexp-flag
                     (read-regexp prompt nil 'minibuffer-history)
                   (read-from-minibuffer
-                   prompt nil nil nil nil
-                   (car (if regexp-flag regexp-search-ring search-ring)) t)))))
+                   prompt nil nil nil nil (car search-ring) t)))))
            (to))
       (if (and (zerop (length from)) query-replace-defaults)
          (cons (caar query-replace-defaults)

-- 
Thierry





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