Use text properties to save search parameters. (Bug#22479)

* lisp/isearch.el (isearch-update-ring): Call isearch-string-propertize.
Delete duplicates with possibly different text properties.
(isearch-string-propertize)
(isearch-update-from-string-properties): New functions.
(with-isearch-suspended, isearch-ring-adjust1):
Call isearch-update-from-string-properties.
(isearch-edit-string): Let-bind minibuffer-allow-text-properties to t.
(isearch-query-replace): Use propertized isearch-string.
(isearch--lax-regexp-function-p): Simplify.

* lisp/replace.el (query-replace-descr): Rewrite to keep text properties
non-destructively in the replacement string.
(query-replace--split-string): Don't remove text properties
by substring-no-properties.
(query-replace-read-args): Try to get isearch-regexp-function
from text-properties.
(perform-replace): Display parameters in the replacement message.

* lisp/desktop.el (desktop--v2s): Check if text properties are unreadable.
(Bug#30786)

1 files changed, 6 insertions, 4 deletions

diff --git a/lisp/desktop.el b/lisp/desktop.el
index 55ec71c1b94..3e1ba200b50 100644
--- a/lisp/desktop.el
+++ b/lisp/desktop.el
@@ -841,10 +841,12 @@ QUOTE may be `may' (value may be quoted),
     ((or (numberp value) (null value) (eq t value) (keywordp value))
      (cons 'may value))
     ((stringp value)
-     (let ((copy (copy-sequence value)))
-       (set-text-properties 0 (length copy) nil copy)
-       ;; Get rid of text properties because we cannot read them.
-       (cons 'may copy)))
+     ;; Get rid of unreadable text properties.
+     (if (condition-case nil (read (format "%S" value)) (error nil))
+         (cons 'may value)
+       (let ((copy (copy-sequence value)))
+         (set-text-properties 0 (length copy) nil copy)
+         (cons 'may copy))))
     ((symbolp value)
      (cons 'must value))
     ((vectorp value)