From: Juri Linkov <juri@linkov.net>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 46240@debbugs.gnu.org
Subject: bug#46240: Sorting order of read-char-by-name
Date: Wed, 03 Feb 2021 19:27:54 +0200 [thread overview]
Message-ID: <87bld1t6z9.fsf@mail.linkov.net> (raw)
In-Reply-To: <838s865mxs.fsf@gnu.org> (Eli Zaretskii's message of "Tue, 02 Feb 2021 20:44:47 +0200")
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> So maybe we need this to be an opt-in behavior.
Here is an option for this:
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[-- Attachment #2: read-char-by-name-sort-function.patch --]
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diff --git a/etc/NEWS b/etc/NEWS
index 7cdb9d9430..0ff78e58e1 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -850,6 +850,11 @@ iso-transl RET', it supports the same key sequences as 'C-x 8',
so e.g. like 'C-x 8 [' inserts a left single quotation mark,
'C-x \ [' does the same.
+---
+*** New user option 'read-char-by-name-sort-function'.
+It can enable sorting the characters of completion from
+'C-x 8 RET TAB' by codepoints instead of character names.
+
---
*** Improved language transliteration in Malayalam input methods.
Added a new Mozhi scheme. The inapplicable ITRANS scheme is now
diff --git a/lisp/international/mule-cmds.el b/lisp/international/mule-cmds.el
index 5dc3de4422..6e1e045a4a 100644
--- a/lisp/international/mule-cmds.el
+++ b/lisp/international/mule-cmds.el
@@ -3083,6 +3083,12 @@ mule--ucs-names-affixation
(list name (concat (if char (format "%c" char) " ") "\t") "")))
names))
+(defun mule--ucs-names-sort-by-code (names)
+ (let* ((codes-and-names
+ (mapcar (lambda (name) (cons (gethash name ucs-names) name)) names))
+ (sorted (sort codes-and-names (lambda (a b) (< (car a) (car b))))))
+ (mapcar #'cdr sorted)))
+
(defun char-from-name (string &optional ignore-case)
"Return a character as a number from its Unicode name STRING.
If optional IGNORE-CASE is non-nil, ignore case in STRING.
@@ -3104,6 +3110,16 @@ char-from-name
ignore-case))
code)))))))
+(defcustom read-char-by-name-sort-function nil
+ "Function to sort characters displayed by `read-char-by-name' completion."
+ :type '(choice
+ (const :tag "Sort by character names" nil)
+ (const :tag "Sort by character codepoints"
+ mule--ucs-names-sort-by-code)
+ (function :tag "Custom function"))
+ :group 'mule
+ :version "28.1")
+
(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
@@ -3130,8 +3146,9 @@ read-char-by-name
prompt
(lambda (string pred action)
(if (eq action 'metadata)
- '(metadata
+ `(metadata
(affixation-function . mule--ucs-names-affixation)
+ (display-sort-function . ,read-char-by-name-sort-function)
(category . unicode-name))
(complete-with-action action (ucs-names) string pred)))))
(char
next prev parent reply other threads:[~2021-02-03 17:27 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-01 17:23 bug#46240: Sorting order of read-char-by-name Juri Linkov
2021-02-01 17:41 ` Eli Zaretskii
2021-02-02 8:40 ` Lars Ingebrigtsen
2021-02-02 17:16 ` Juri Linkov
2021-02-02 17:57 ` bug#46240: [External] : " Drew Adams
2021-02-02 18:47 ` Eli Zaretskii
2021-02-03 15:38 ` Lars Ingebrigtsen
2021-02-03 18:02 ` Lars Ingebrigtsen
2021-02-03 18:17 ` Eli Zaretskii
2021-02-03 18:21 ` Lars Ingebrigtsen
2021-02-03 18:40 ` Eli Zaretskii
2021-02-03 19:43 ` Juri Linkov
2021-02-04 7:56 ` Lars Ingebrigtsen
2021-02-04 9:32 ` Juri Linkov
2021-02-04 16:19 ` Lars Ingebrigtsen
2021-02-04 22:34 ` Juri Linkov
2021-02-05 7:36 ` Eli Zaretskii
2021-02-06 19:35 ` Juri Linkov
2021-02-06 20:01 ` Eli Zaretskii
2021-02-07 18:56 ` Juri Linkov
2021-02-07 19:54 ` Eli Zaretskii
2021-02-09 18:13 ` Juri Linkov
2021-02-09 19:00 ` Eli Zaretskii
2021-02-09 19:16 ` Juri Linkov
2021-02-02 17:13 ` Juri Linkov
2021-02-02 18:44 ` Eli Zaretskii
2021-02-03 17:27 ` Juri Linkov [this message]
2021-02-03 17:54 ` Eli Zaretskii
2021-02-03 19:44 ` Juri Linkov
2021-02-03 15:35 ` Lars Ingebrigtsen
2021-02-01 19:35 ` bug#46240: [External] : " Drew Adams
2021-02-02 17:18 ` Juri Linkov
2021-02-02 17:49 ` Drew Adams
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