Function: use-cjk-char-width-table

use-cjk-char-width-table is a byte-compiled function defined in characters.el.gz.

Signature

(use-cjk-char-width-table LOCALE-NAME)

Source Code

;; Defined in /usr/src/emacs/lisp/international/characters.el.gz
;; Internal use only.
;; Setup char-width-table appropriate for a language environment
;; corresponding to LOCALE-NAME (symbol).

(defun use-cjk-char-width-table (locale-name)
  (while (char-table-parent char-width-table)
    (setq char-width-table (char-table-parent char-width-table)))
  (let ((slot (assq locale-name cjk-char-width-table-list)))
    (or slot (error "Unknown locale for CJK language environment: %s"
		    locale-name))
    (unless (nth 1 slot)
      (let ((table (make-char-table nil)))
	(dolist (charset-info (nthcdr 2 slot))
	  (let ((charset (car charset-info)))
	    (dolist (code-range (cdr charset-info))
              (map-charset-chars (lambda (range _arg)
                                   (set-char-table-range table range 2))
				 charset nil
				 (car code-range) (cdr code-range)))))
	(optimize-char-table table)
	(set-char-table-parent table char-width-table)
	(setcar (cdr slot) table)))
    (setq char-width-table (nth 1 slot))))