2 files changed, 25 insertions, 5 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index cdf6dbf4944..da5b9ebbda2 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2011-02-18  Eli Zaretskii  <eliz@gnu.org>
+
+        * international/mule-cmds.el (read-char-by-name, ucs-insert):
+        Document completion with asterisk and a substring.
+
 2011-02-18  Glenn Morris  <rgm@gnu.org>
 
         * files.el (find-file-literally): Doc fix.
diff --git a/lisp/international/mule-cmds.el b/lisp/international/mule-cmds.el
index fed7e6ec9b1..0ca4a740586 100644
--- a/lisp/international/mule-cmds.el
+++ b/lisp/international/mule-cmds.el
@@ -2934,11 +2934,19 @@ on encoding."
 (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'.  You can type a few of first
-letters of the Unicode name and use completion.  This function also
-accepts a hexadecimal number of Unicode code point or a number in
-hash notation, e.g. #o21430 for octal, #x2318 for hex, or #10r8984
-for decimal.  Returns a character as a number."
+Unicode property `name' or `old-name'.
+
+This function returns the character as a number.
+
+You can type a few of the first letters of the Unicode name and
+use completion.  If you type a substring of the Unicode name
+preceded by an asterisk `*' and use completion, it will show all
+the characters whose names include that substring, not necessarily
+at the beginning of the name.
+
+This function also accepts a hexadecimal number of Unicode code
+point or a number in hash notation, e.g. #o21430 for octal,
+#x2318 for hex, or #10r8984 for decimal."
   (let* ((completion-ignore-case t)
          (input (completing-read prompt ucs-completions)))
     (cond
@@ -2953,6 +2961,13 @@ for decimal.  Returns a character as a number."
   "Insert COUNT copies of CHARACTER of the given Unicode code point.
 Interactively, prompts for a Unicode character name or a hex number
 using `read-char-by-name'.
+
+You can type a few of the first letters of the Unicode name and
+use completion.  If you type a substring of the Unicode name
+preceded by an asterisk `*' and use completion, it will show all
+the characters whose names include that substring, not necessarily
+at the beginning of the name.
+
 The optional third arg INHERIT (non-nil when called interactively),
 says to inherit text properties from adjoining text, if those
 properties are sticky."