(ucs-names): New internal variable.

(ucs-names): New function.
(ucs-completions): New lazy completion variable.
(read-char-by-name): New function.
(ucs-insert): Replace interactive spec letter "s" with the call to
`read-char-by-name'.

2 files changed, 68 insertions, 1 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 4f30596b3b2..b3c7d59a49d 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,34 @@
+2008-07-29  Juri Linkov  <juri@jurta.org>
+
+        * international/mule-cmds.el (ucs-names): New internal variable.
+        (ucs-names): New function.
+        (ucs-completions): New lazy completion variable.
+        (read-char-by-name): New function.
+        (ucs-insert): Replace interactive spec letter "s" with the call to
+        `read-char-by-name'.
+
+        * replace.el (read-regexp): Add second arg `default'.  Doc fix.
+
+        * replace.el (occur-read-primary-args):
+        * hi-lock.el (hi-lock-line-face-buffer, hi-lock-face-buffer)
+        (hi-lock-face-phrase-buffer): Use `(car regexp-history)' as the
+        second arg of `read-regexp'.
+
+        * dired-aux.el (dired-isearch-filenames): New user option.
+        (dired-isearch-orig-success-function): New internal variable.
+        (dired-isearch-filenames-setup, dired-isearch-filenames-end)
+        (dired-isearch-success-function): New functions.
+        (dired-isearch-filenames, dired-isearch-filenames-regexp):
+        New commands.
+
+        * dired.el (dired-insert-set-properties): Add new text property
+        `dired-filename' to put on file names.
+        (dired-mode-map): Bind `M-s f C-s' to `dired-isearch-filenames'
+        and `M-s f M-C-s' to `dired-isearch-filenames-regexp'.
+        Add menu items.
+        (dired-mode): Add hook `dired-isearch-filenames-setup' to
+        buffer-local `isearch-mode-hook'.
+
 2008-07-29  Juanma Barranquero  <lekktu@gmail.com>
 
         * progmodes/ada-mode.el (ada-batch-reformat): Doc fix.
diff --git a/lisp/international/mule-cmds.el b/lisp/international/mule-cmds.el
index 4b8ee720d7e..aa45bda2c48 100644
--- a/lisp/international/mule-cmds.el
+++ b/lisp/international/mule-cmds.el
@@ -2832,10 +2832,46 @@ If CODING-SYSTEM can't safely encode CHAR, return nil."
 (defvar nonascii-insert-offset 0 "This variable is obsolete.")
 (defvar nonascii-translation-table nil "This variable is obsolete.")
 
+(defvar ucs-names nil
+  "Alist of cached (CHAR-NAME . CHAR-CODE) pairs.")
+
+(defun ucs-names ()
+  "Return alist of (CHAR-NAME . CHAR-CODE) pairs cached in `ucs-names'."
+  (or ucs-names
+      (setq ucs-names
+            (let (name names)
+              (dotimes (c #xEFFFF)
+                (unless (or
+                         (and (>= c #x3400 ) (<= c #x4dbf )) ; CJK Ideograph Extension A
+                         (and (>= c #x4e00 ) (<= c #x9fff )) ; CJK Ideograph
+                         (and (>= c #xd800 ) (<= c #xfaff )) ; Private/Surrogate
+                         (and (>= c #x20000) (<= c #x2ffff)) ; CJK Ideograph Extension B
+                         )
+                  (if (setq name (get-char-code-property c 'name))
+                      (setq names (cons (cons name c) names)))
+                  (if (setq name (get-char-code-property c 'old-name))
+                      (setq names (cons (cons name c) names)))))
+              names))))
+
+(defvar ucs-completions (lazy-completion-table ucs-completions ucs-names)
+  "Lazy completion table for completing on Unicode character names.")
+
+(defun read-char-by-name (prompt)
+  "Read a character by its Unicode name or hex number string.
+Display PROMPT and read a string that represents a character
+by its Unicode property `name' or `old-name'.  It also accepts
+a hexadecimal number of Unicode code point.  Returns a character
+as a number."
+  (let* ((completion-ignore-case t)
+         (input (completing-read prompt ucs-completions)))
+    (or (and (string-match "^[0-9a-fA-F]+$" input)
+             (string-to-number input 16))
+        (cdr (assoc input (ucs-names))))))
+
 (defun ucs-insert (arg)
   "Insert a character of the given Unicode code point.
 Interactively, prompts for a hex string giving the code."
-  (interactive "sUnicode (hex): ")
+  (interactive (list (read-char-by-name "Unicode (name or hex): ")))
   (or (integerp arg)
       (setq arg (string-to-number arg 16)))
   (if (or (< arg 0) (> arg #x10FFFF))