Sorry for the offtopic, but I thought this homemade function I wrote
some time ago for my work might perhaps be useful to some Orgers. When
executed in a buffer, the `list-non-latin-chars' function opens a window
displaying a list of all the non (basic) Latin characters present in
that document. Each item in the list contains the character, its Unicode
canonical name, and its hexadecimal code. For example:
殿 CJK IDEOGRAPH-6BBF #6bbf
Also, each item is a button (created with button.el). If the button
is activated, there are currently two options: a: execute occur on that
character in the document; b : execute describe-char on that character.
By default, the characters displayed in the list correspond to any
Unicode block other than basic-latin. Which means that the zero width
space character is included, a very famous character in this mailing
list :-)
And here is the code (lexical binding is required). Of course, feedback
welcome.
Best regards,
Juan Manuel
#+begin_src emacs-lisp
(setq ext-chars-actions-list '((?a "Occur"
(lambda (buf char)
(interactive)
(with-current-buffer buf
(occur char))))
(?b "Describe char"
(lambda (buf char)
(interactive)
(with-current-buffer buf
(save-excursion
(goto-char (point-min))
(when (re-search-forward char nil t)
(describe-char (- (point)
1)))))))))
(defun ext-chars-choose-action (buf char)
(let ((opt (read-char-choice (concat "Escoger acción >>\n\n"
(mapconcat (lambda (item)
(format "%c: %s"
(car item) (nth 1
item)))
ext-chars-actions-list "
--- "))
(mapcar #'car ext-chars-actions-list))))
(apply (nth 2 (assoc opt ext-chars-actions-list))
(list buf char))))
(defvar ext-chars-list nil)
(defun list-non-latin-chars ()
(interactive)
(setq ext-chars-list nil)
(let ((buf (buffer-name)))
(save-excursion
(goto-char (point-min))
(while
(re-search-forward "\\([^\u0000-\u007F]\\)" nil t)
(add-to-list 'ext-chars-list (format "%s" (match-string 1))))
(setq ext-chars-list-final
(mapcar (lambda (char)
(let
((char-name (get-char-code-property (string-to-char
char) 'name))
;; convert to hexadecimal
(char-code (format "#%x" (string-to-char char))))
(setq char (format "%s\s\s%s\s\s%s" char char-name
char-code))))
ext-chars-list))
(let ((temp-buf (format "*non latin chars in %s*" buf)))
(when (get-buffer temp-buf)
(kill-buffer temp-buf))
(get-buffer-create temp-buf)
(set-buffer temp-buf)
;; necessary for Arabic, Hebrew, etc.
(setq bidi-display-reordering nil)
;; insert buttons list
(mapc (lambda (el)
(let ((char (when (string-match "^\\(.\\)\s" el)
(match-string 1 el))))
(insert-button (format "%s" el)
'action (lambda (x)
(interactive)
(ext-chars-choose-action buf
char)))
(insert "\n\n")))
ext-chars-list-final)
(pop-to-buffer temp-buf)
(goto-char (point-min))
(view-mode)))))
#+end_src
--
--
------------------------------------------------------
Juan Manuel Macías
https://juanmanuelmacias.com
https://lunotipia.juanmanuelmacias.com
https://gnutas.juanmanuelmacias.com
