-;;; mule-diag.el --- Show diagnosis of multilingual environment (MULE)
+;;; mule-diag.el --- show diagnosis of multilingual environment (Mule)
;; Copyright (C) 1995 Electrotechnical Laboratory, JAPAN.
;; Licensed to the Free Software Foundation.
-;; Keywords: multilingual, charset, coding system, fontset, diagnosis
+;; Keywords: multilingual, charset, coding system, fontset, diagnosis, i18n
;; This file is part of GNU Emacs.
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
+;;; Commentary:
+
+;;; Code:
+
;;; General utility function
;; Print all arguments with single space separator in one line.
;;; CHARSET
;;;###autoload
-(defun list-character-sets (&optional arg)
+(defun list-character-sets (arg)
"Display a list of all character sets.
-The ID column contains a charset identification number for internal use.
-The B column contains a number of bytes occupied in a buffer.
-The W column contains a number of columns occupied in a screen.
+The ID-NUM column contains a charset identification number
+ for internal Emacs use.
+
+The MULTIBYTE-FORM column contains a format of multibyte sequence
+ of characters in the charset for buffer and string
+ by one to four hexadecimal digits.
+ `xx' stands for any byte in the range 0..127.
+ `XX' stands for any byte in the range 160..255.
+
+The D column contains a dimension of this character set.
+The CH column contains a number of characters in a block of this character set.
+The FINAL-CHAR column contains an ISO-2022's <final-char> to use for
+ designating this character set in ISO-2022-based coding systems.
-With prefix arg, the output format gets more cryptic
-but contains full information about each character sets."
+With prefix arg, the output format gets more cryptic,
+but still shows the full information."
(interactive "P")
- (sort-charset-list)
(with-output-to-temp-buffer "*Help*"
- (save-excursion
- (set-buffer standard-output)
- (let ((l charset-list)
- charset)
- (if (null arg)
- (progn
- (insert "ID Name B W Description\n")
- (insert "-- ---- - - -----------\n")
- (while l
- (setq charset (car l) l (cdr l))
- (insert (format "%03d %s" (charset-id charset) charset))
- (indent-to 28)
- (insert (format "%d %d %s\n"
- (charset-bytes charset)
- (charset-width charset)
- (charset-description charset)))))
- (insert "\
-#########################
+ (with-current-buffer standard-output
+ (if arg
+ (list-character-sets-2)
+ ;; Insert header.
+ (insert
+ (substitute-command-keys
+ (concat "Use "
+ (if (display-mouse-p) "\\[help-follow-mouse] or ")
+ "\\[help-follow]:\n")))
+ (insert " on a column title to sort by that title,")
+ (indent-to 56)
+ (insert "+----DIMENSION\n")
+ (insert " on a charset name to list characters.")
+ (indent-to 56)
+ (insert "| +--CHARS\n")
+ (let ((columns '(("ID-NUM" . id) "\t"
+ ("CHARSET-NAME" . name) "\t\t\t"
+ ("MULTIBYTE-FORM" . id) "\t"
+ ("D CH FINAL-CHAR" . iso-spec)))
+ (help-highlight-face 'region)
+ (help-echo
+ (substitute-command-keys
+ (concat (if (display-mouse-p) "\\[help-follow-mouse], ")
+ "\\[help-follow]: sort on this column")))
+ pos)
+ (while columns
+ (if (stringp (car columns))
+ (insert (car columns))
+ (insert (car (car columns)))
+ (search-backward (car (car columns)))
+ (help-xref-button 0 'sort-listed-character-sets
+ (cdr (car columns))
+ help-echo)
+ (goto-char (point-max)))
+ (setq columns (cdr columns)))
+ (insert "\n"))
+ (insert "------\t------------\t\t\t--------------\t- -- ----------\n")
+
+ ;; Insert body sorted by charset IDs.
+ (list-character-sets-1 'id)
+ (help-setup-xref (list #'list-character-sets arg) (interactive-p))))))
+
+
+;; Sort character set list by SORT-KEY.
+
+(defun sort-listed-character-sets (sort-key)
+ (if sort-key
+ (save-excursion
+ (let ((buffer-read-only nil))
+ (goto-char (point-min))
+ (re-search-forward "[0-9][0-9][0-9]")
+ (beginning-of-line)
+ (delete-region (point) (point-max))
+ (list-character-sets-1 sort-key)
+ (help-setup-xref (list #'list-character-sets nil) t)))))
+
+(defun charset-multibyte-form-string (charset)
+ (let ((info (charset-info charset)))
+ (cond ((eq charset 'ascii)
+ "xx")
+ ((eq charset 'eight-bit-control)
+ (format "%2X Xx" (aref info 6)))
+ ((eq charset 'eight-bit-graphic)
+ "XX")
+ (t
+ (let ((str (format "%2X" (aref info 6))))
+ (if (> (aref info 7) 0)
+ (setq str (format "%s %2X"
+ str (aref info 7))))
+ (setq str (concat str " XX"))
+ (if (> (aref info 2) 1)
+ (setq str (concat str " XX")))
+ str)))))
+
+;; Insert a list of character sets sorted by SORT-KEY. SORT-KEY
+;; should be one of `id', `name', and `iso-spec'. If SORT-KEY is nil,
+;; it defaults to `id'.
+
+(defun list-character-sets-1 (sort-key)
+ (or sort-key
+ (setq sort-key 'id))
+ (let ((tail (charset-list))
+ (help-echo
+ (substitute-command-keys
+ (concat (if (display-mouse-p) "\\[help-follow-mouse], ")
+ "\\[help-follow]: show table of this character set")))
+ charset-info-list elt charset info sort-func)
+ (while tail
+ (setq charset (car tail) tail (cdr tail)
+ info (charset-info charset))
+
+ ;; Generate a list that contains all information to display.
+ (setq charset-info-list
+ (cons (list (charset-id charset) ; ID-NUM
+ charset ; CHARSET-NAME
+ (charset-multibyte-form-string charset); MULTIBYTE-FORM
+ (aref info 2) ; DIMENSION
+ (aref info 3) ; CHARS
+ (aref info 8) ; FINAL-CHAR
+ )
+ charset-info-list)))
+
+ ;; Determine a predicate for `sort' by SORT-KEY.
+ (setq sort-func
+ (cond ((eq sort-key 'id)
+ (function (lambda (x y) (< (car x) (car y)))))
+
+ ((eq sort-key 'name)
+ (function (lambda (x y) (string< (nth 1 x) (nth 1 y)))))
+
+ ((eq sort-key 'iso-spec)
+ ;; Sort by DIMENSION CHARS FINAL-CHAR
+ (function
+ (lambda (x y)
+ (or (< (nth 3 x) (nth 3 y))
+ (and (= (nth 3 x) (nth 3 y))
+ (or (< (nth 4 x) (nth 4 y))
+ (and (= (nth 4 x) (nth 4 y))
+ (< (nth 5 x) (nth 5 y)))))))))
+ (t
+ (error "Invalid charset sort key: %s" sort-key))))
+
+ (setq charset-info-list (sort charset-info-list sort-func))
+
+ ;; Insert information of character sets.
+ (while charset-info-list
+ (setq elt (car charset-info-list)
+ charset-info-list (cdr charset-info-list))
+ (insert (format "%03d(%02X)" (car elt) (car elt))) ; ID-NUM
+ (indent-to 8)
+ (insert (symbol-name (nth 1 elt))) ; CHARSET-NAME
+ (search-backward (symbol-name (nth 1 elt)))
+ (help-xref-button 0 'list-charset-chars (nth 1 elt) help-echo)
+ (goto-char (point-max))
+ (insert "\t")
+ (indent-to 40)
+ (insert (nth 2 elt)) ; MULTIBYTE-FORM
+ (indent-to 56)
+ (insert (format "%d %2d " (nth 3 elt) (nth 4 elt)) ; DIMENSION and CHARS
+ (if (< (nth 5 elt) 0) "none" (nth 5 elt))) ; FINAL-CHAR
+ (insert "\n"))))
+
+
+;; List all character sets in a form that a program can easily parse.
+
+(defun list-character-sets-2 ()
+ (insert "#########################
## LIST OF CHARSETS
## Each line corresponds to one charset.
## The following attributes are listed in this order
## ISO-GRAPHIC-PLANE (ISO-2022's graphic plane, 0:GL, 1:GR)
## DESCRIPTION (describing string of the charset)
")
- (while l
- (setq charset (car l) l (cdr l))
- (princ (format "%03d:%s:%d:%d:%d:%d:%d:%d:%d:%s\n"
- (charset-id charset)
- charset
- (charset-dimension charset)
- (charset-chars charset)
- (charset-bytes charset)
- (charset-width charset)
- (charset-direction charset)
- (charset-iso-final-char charset)
- (charset-iso-graphic-plane charset)
- (charset-description charset))))))
- (help-mode)
- (setq truncate-lines t))))
+ (let ((l charset-list)
+ charset)
+ (while l
+ (setq charset (car l) l (cdr l))
+ (princ (format "%03d:%s:%d:%d:%d:%d:%d:%d:%d:%s\n"
+ (charset-id charset)
+ charset
+ (charset-dimension charset)
+ (charset-chars charset)
+ (charset-bytes charset)
+ (charset-width charset)
+ (charset-direction charset)
+ (charset-iso-final-char charset)
+ (charset-iso-graphic-plane charset)
+ (charset-description charset))))))
+
+(defvar non-iso-charset-alist
+ `((viscii
+ (ascii vietnamese-viscii-lower vietnamese-viscii-upper)
+ viet-viscii-nonascii-translation-table
+ ((0 255)))
+ (koi8-r
+ (ascii cyrillic-iso8859-5)
+ cyrillic-koi8-r-nonascii-translation-table
+ ((32 255)))
+ (alternativnyj
+ (ascii cyrillic-iso8859-5)
+ cyrillic-alternativnyj-nonascii-translation-table
+ ((32 255)))
+ (big5
+ (ascii chinese-big5-1 chinese-big5-2)
+ decode-big5-char
+ ((32 127)
+ ((?\xA1 ?\xFE) . (?\x40 ?\x7E ?\xA1 ?\xFE))))
+ (sjis
+ (ascii katakana-jisx0201 japanese-jisx0208)
+ decode-sjis-char
+ ((32 127 ?\xA1 ?\xDF)
+ ((?\x81 ?\x9F ?\xE0 ?\xEF) . (?\x40 ?\x7E ?\x80 ?\xFC)))))
+ "Alist of non-ISO charset names vs the corresponding information.
+
+Non-ISO charsets are what Emacs can read (or write) by mapping to (or
+from) some Emacs' charsets that correspond to ISO charsets.
+
+Each element has the following format:
+ (NON-ISO-CHARSET CHARSET-LIST TRANSLATION-METHOD [ CODE-RANGE ])
+
+NON-ISO-CHARSET is a name (symbol) of the non-ISO charset.
+
+CHARSET-LIST is a list of Emacs' charsets into which characters of
+NON-ISO-CHARSET are mapped.
+
+TRANSLATION-METHOD is a translation table (symbol) to translate a
+character code of NON-ISO-CHARSET to the corresponding Emacs character
+code. It can also be a function to call with one argument, a
+character code in NON-ISO-CHARSET.
+
+CODE-RANGE specifies the valid code ranges of NON-ISO-CHARSET.
+It is a list of RANGEs, where each RANGE is of the form:
+ (FROM1 TO1 FROM2 TO2 ...)
+or
+ ((FROM1-1 TO1-1 FROM1-2 TO1-2 ...) . (FROM2-1 TO2-1 FROM2-2 TO2-2 ...))
+In the first form, valid codes are between FROM1 and TO1, or FROM2 and
+TO2, or...
+The second form is used for 2-byte codes. The car part is the ranges
+of the first byte, and the cdr part is the ranges of the second byte.")
+
+
+;; Decode a character that has code CODE in CODEPAGE. Value is a
+;; string of decoded character.
+
+(defun decode-codepage-char (codepage code)
+ ;; Each CODEPAGE corresponds to a coding system cpCODEPAGE.
+ (let ((coding-system (intern (format "cp%d" codepage))))
+ (or (coding-system-p coding-system)
+ (codepage-setup codepage))
+ (string-to-char
+ (decode-coding-string (char-to-string code) coding-system))))
+
+
+;; Add DOS codepages to `non-iso-charset-alist'.
+
+(let ((tail (cp-supported-codepages))
+ elt)
+ (while tail
+ (setq elt (car tail) tail (cdr tail))
+ ;; Now ELT is (CODEPAGE . CHARSET), where CODEPAGE is a string
+ ;; (e.g. "850"), CHARSET is a charset that characters in CODEPAGE
+ ;; are mapped to.
+ (setq non-iso-charset-alist
+ (cons (list (intern (concat "cp" (car elt)))
+ (list 'ascii (cdr elt))
+ `(lambda (code)
+ (decode-codepage-char ,(string-to-int (car elt))
+ code))
+ (list (list 0 255)))
+ non-iso-charset-alist))))
+
+
+;; A variable to hold charset input history.
+(defvar charset-history nil)
+
+
+;;;###autoload
+(defun read-charset (prompt &optional default-value initial-input)
+ "Read a character set from the minibuffer, prompting with string PROMPT.
+It reads an Emacs' character set listed in the variable `charset-list'
+or a non-ISO character set listed in the variable
+`non-iso-charset-alist'.
+
+Optional arguments are DEFAULT-VALUE and INITIAL-INPUT.
+DEFAULT-VALUE, if non-nil, is the default value.
+INITIAL-INPUT, if non-nil, is a string inserted in the minibuffer initially.
+See the documentation of the function `completing-read' for the
+detailed meanings of these arguments."
+ (let* ((table (append (mapcar (function (lambda (x) (list (symbol-name x))))
+ charset-list)
+ (mapcar (function (lambda (x)
+ (list (symbol-name (car x)))))
+ non-iso-charset-alist)))
+ (charset (completing-read prompt table
+ nil t initial-input 'charset-history
+ default-value)))
+ (if (> (length charset) 0)
+ (intern charset))))
+
+
+;; List characters of the range MIN and MAX of CHARSET. If dimension
+;; of CHARSET is two (i.e. 2-byte charset), ROW is the first byte
+;; (block index) of the characters, and MIN and MAX are the second
+;; bytes of the characters. If the dimension is one, ROW should be 0.
+;; For a non-ISO charset, CHARSET is a translation table (symbol) or a
+;; function to get Emacs' character codes that corresponds to the
+;; characters to list.
+
+(defun list-block-of-chars (charset row min max)
+ (let (i ch)
+ (insert-char ?- (+ 4 (* 3 16)))
+ (insert "\n ")
+ (setq i 0)
+ (while (< i 16)
+ (insert (format "%3X" i))
+ (setq i (1+ i)))
+ (setq i (* (/ min 16) 16))
+ (while (<= i max)
+ (if (= (% i 16) 0)
+ (insert (format "\n%3Xx" (/ (+ (* row 256) i) 16))))
+ (setq ch (cond ((< i min)
+ 32)
+ ((charsetp charset)
+ (if (= row 0)
+ (make-char charset i)
+ (make-char charset row i)))
+ ((and (symbolp charset) (get charset 'translation-table))
+ (aref (get charset 'translation-table) i))
+ (t (funcall charset (+ (* row 256) i)))))
+ (if (and (char-table-p charset)
+ (or (< ch 32) (and (>= ch 127) (<= ch 255))))
+ ;; Don't insert a control code.
+ (setq ch 32))
+ (indent-to (+ (* (% i 16) 3) 6))
+ (insert ch)
+ (setq i (1+ i))))
+ (insert "\n"))
+
+
+;; List all characters in ISO charset CHARSET.
+
+(defun list-iso-charset-chars (charset)
+ (let ((dim (charset-dimension charset))
+ (chars (charset-chars charset))
+ (plane (charset-iso-graphic-plane charset))
+ min max)
+ (insert (format "Characters in the charset %s.\n" charset))
+
+ (cond ((eq charset 'eight-bit-control)
+ (setq min 128 max 159))
+ ((eq charset 'eight-bit-graphic)
+ (setq min 160 max 255))
+ (t
+ (if (= chars 94)
+ (setq min 33 max 126)
+ (setq min 32 max 127))
+ (or (= plane 0)
+ (setq min (+ min 128) max (+ max 128)))))
+
+ (if (= dim 1)
+ (list-block-of-chars charset 0 min max)
+ (let ((i min))
+ (while (<= i max)
+ (list-block-of-chars charset i min max)
+ (setq i (1+ i)))))))
+
+
+;; List all characters in non-ISO charset CHARSET.
+
+(defun list-non-iso-charset-chars (charset)
+ (let* ((slot (assq charset non-iso-charset-alist))
+ (charsets (nth 1 slot))
+ (translate-method (nth 2 slot))
+ (ranges (nth 3 slot))
+ range)
+ (or slot
+ (error "Unknown external charset: %s" charset))
+ (insert (format "Characters in non-ISO charset %s.\n" charset))
+ (insert "They are mapped to: "
+ (mapconcat #'symbol-name charsets ", ")
+ "\n")
+ (while ranges
+ (setq range (car ranges) ranges (cdr ranges))
+ (if (integerp (car range))
+ ;; The form of RANGES is (FROM1 TO1 FROM2 TO2 ...).
+ (while range
+ (list-block-of-chars translate-method
+ 0 (car range) (nth 1 range))
+ (setq range (nthcdr 2 range)))
+ ;; The form of RANGES is ((FROM1-1 TO1-1 ...) . (FROM2-1 TO2-1 ...)).
+ (let ((row-range (car range))
+ row row-max
+ col-range col col-max)
+ (while row-range
+ (setq row (car row-range) row-max (nth 1 row-range)
+ row-range (nthcdr 2 row-range))
+ (while (<= row row-max)
+ (setq col-range (cdr range))
+ (while col-range
+ (setq col (car col-range) col-max (nth 1 col-range)
+ col-range (nthcdr 2 col-range))
+ (list-block-of-chars translate-method row col col-max))
+ (setq row (1+ row)))))))))
+
+
+;;;###autoload
+(defun list-charset-chars (charset)
+ "Display a list of characters in the specified character set."
+ (interactive (list (read-charset "Character set: ")))
+ (with-output-to-temp-buffer "*Help*"
+ (with-current-buffer standard-output
+ (set-buffer-multibyte t)
+ (cond ((charsetp charset)
+ (list-iso-charset-chars charset))
+ ((assq charset non-iso-charset-alist)
+ (list-non-iso-charset-chars charset))
+ (t
+ (error "Invalid charset %s" charset))))))
+
+
+;;;###autoload
+(defun describe-character-set (charset)
+ "Display information about character set CHARSET."
+ (interactive (list (let ((non-iso-charset-alist nil))
+ (read-charset "Charset: "))))
+ (or (charsetp charset)
+ (error "Invalid charset: %S" charset))
+ (let ((info (charset-info charset)))
+ (with-output-to-temp-buffer "*Help*"
+ (save-excursion
+ (set-buffer standard-output)
+ (insert "Character set: " (symbol-name charset)
+ (format " (ID:%d)\n\n" (aref info 0)))
+ (insert (aref info 13) "\n\n") ; description
+ (insert "number of contained characters: "
+ (if (= (aref info 2) 1)
+ (format "%d\n" (aref info 3))
+ (format "%dx%d\n" (aref info 3) (aref info 3))))
+ (insert "the final char of ISO2022's designation sequence: ")
+ (if (>= (aref info 8) 0)
+ (insert (format "`%c'\n" (aref info 8)))
+ (insert "not assigned\n"))
+ (insert (format "width (how many columns on screen): %d\n"
+ (aref info 4)))
+ (insert (format "internal multibyte sequence: %s\n"
+ (charset-multibyte-form-string charset)))
+ (let ((coding (plist-get (aref info 14) 'preferred-coding-system)))
+ (when coding
+ (insert (format "preferred coding system: %s\n" coding))
+ (search-backward (symbol-name coding))
+ (help-xref-button 0 #'describe-coding-system coding
+ "mouse-2, RET: describe this coding system")))
+ (help-setup-xref (list #'describe-character-set charset)
+ (interactive-p))
+ ))))
+
+;;;###autoload
+(defun describe-char-after (&optional pos)
+ "Display information about the character at POS in the current buffer.
+POS defaults to point.
+The information includes character code, charset and code points in it,
+syntax, category, how the character is encoded in a file,
+which font is being used for displaying the character."
+ (interactive)
+ (or pos
+ (setq pos (point)))
+ (if (>= pos (point-max))
+ (error "No character at point"))
+ (let* ((char (char-after pos))
+ (charset (char-charset char))
+ (composition (find-composition (point) nil nil t))
+ (composed (if composition (buffer-substring (car composition)
+ (nth 1 composition))))
+ (multibyte-p enable-multibyte-characters)
+ item-list max-width)
+ (if (eq charset 'unknown)
+ (setq item-list
+ `(("character"
+ ,(format "%s (0%o, %d, 0x%x) -- invalid character code"
+ (if (< char 256)
+ (single-key-description char)
+ (char-to-string char))
+ char char char))))
+ (setq item-list
+ `(("character"
+ ,(format "%s (0%o, %d, 0x%x)" (if (< char 256)
+ (single-key-description char)
+ (char-to-string char))
+ char char char))
+ ("charset"
+ ,(symbol-name charset)
+ ,(format "(%s)" (charset-description charset)))
+ ("code point"
+ ,(let ((split (split-char char)))
+ (if (= (charset-dimension charset) 1)
+ (format "%d" (nth 1 split))
+ (format "%d %d" (nth 1 split) (nth 2 split)))))
+ ("syntax"
+ ,(nth 2 (assq (char-syntax char) syntax-code-table)))
+ ("category"
+ ,@(let ((category-set (char-category-set char)))
+ (if (not category-set)
+ '("-- none --")
+ (mapcar #'(lambda (x) (format "%c:%s "
+ x (category-docstring x)))
+ (category-set-mnemonics category-set)))))
+ ("buffer code"
+ ,(encoded-string-description
+ (string-as-unibyte (char-to-string char)) nil))
+ ("file code"
+ ,@(let* ((coding buffer-file-coding-system)
+ (encoded (encode-coding-char char coding)))
+ (if encoded
+ (list (encoded-string-description encoded coding)
+ (format "(encoded by coding system %S)" coding))
+ (list "not encodable by coding system"
+ (symbol-name coding)))))
+ ,(if (display-graphic-p (selected-frame))
+ (list "font" (or (internal-char-font (point))
+ "-- none --"))
+ (list "terminal code"
+ (let* ((coding (terminal-coding-system))
+ (encoded (encode-coding-char char coding)))
+ (if encoded
+ (encoded-string-description encoded coding)
+ "not encodable")))))))
+ (setq max-width (apply #'max (mapcar #'(lambda (x) (length (car x)))
+ item-list)))
+ (with-output-to-temp-buffer "*Help*"
+ (save-excursion
+ (set-buffer standard-output)
+ (set-buffer-multibyte multibyte-p)
+ (let ((formatter (format "%%%ds:" max-width)))
+ (dolist (elt item-list)
+ (insert (format formatter (car elt)))
+ (dolist (clm (cdr elt))
+ (when (>= (+ (current-column) (string-width clm) 1)
+ (frame-width))
+ (insert "\n")
+ (indent-to (1+ max-width)))
+ (insert " " clm))
+ (insert "\n")))
+ (when composition
+ (insert "\nComposed with the following character(s) "
+ (mapconcat (lambda (x) (format "`%c'" x))
+ (substring composed 1)
+ ", ")
+ " to form `" composed "'")
+ (if (nth 3 composition)
+ (insert ".\n")
+ (insert "\nby the rule ("
+ (mapconcat (lambda (x)
+ (format (if (consp x) "%S" "?%c") x))
+ (nth 2 composition)
+ " ")
+ ").\n"
+ "See the variable `reference-point-alist' for the meaning of the rule.\n")))
+ ))))
+
\f
;;; CODING-SYSTEM
(car charset)
(charset-description (car charset)))))
(t
- "invalid designation information"))
+ "invalid designation information"))
(setq charset (cdr charset))))
(setq graphic-register (1+ graphic-register)))))
;;;###autoload
(defun describe-coding-system (coding-system)
- "Display information of CODING-SYSTEM."
+ "Display information about CODING-SYSTEM."
(interactive "zDescribe coding system (default, current choices): ")
(if (null coding-system)
(describe-current-coding-system)
(if (aref flags 8) (princ ", use-locking-shift"))
(if (aref flags 9) (princ ", use-single-shift"))
(if (aref flags 10) (princ ", use-roman"))
- (if (aref flags 10) (princ ", use-old-jis"))
- (if (aref flags 11) (princ ", no-ISO6429"))
+ (if (aref flags 11) (princ ", use-old-jis"))
+ (if (aref flags 12) (princ ", no-ISO6429"))
+ (if (aref flags 13) (princ ", init-bol"))
+ (if (aref flags 14) (princ ", designation-bol"))
+ (if (aref flags 15) (princ ", convert-unsafe"))
+ (if (aref flags 16) (princ ", accept-latin-extra-code"))
(princ "."))
((eq type 3)
(princ " (Big5)"))
(t (princ "invalid\n")))))
(let ((postread (coding-system-get coding-system 'post-read-conversion)))
(when postread
- (princ "After decoding a text normally,")
- (princ " perform post-conversion by the function: ")
+ (princ "After decoding text normally,")
+ (princ " perform post-conversion using the function: ")
(princ "\n ")
(princ postread)
(princ "\n")))
(let ((prewrite (coding-system-get coding-system 'pre-write-conversion)))
(when prewrite
- (princ "Before encoding a text normally,")
- (princ " perform pre-conversion by the function: ")
+ (princ "Before encoding text normally,")
+ (princ " perform pre-conversion using the function: ")
(princ "\n ")
(princ prewrite)
(princ "\n")))
- (let ((charsets (coding-system-get coding-system 'safe-charsets)))
- (when charsets
- (princ "This coding system is mainly for the following charsets:\n")
- (princ " ")
- (while charsets
- (princ " ")
- (princ (car charsets))
- (setq charsets (cdr charsets)))))
(save-excursion
(set-buffer standard-output)
- (help-mode)))))
+ (let ((charsets (coding-system-get coding-system 'safe-charsets)))
+ (when (and (not (memq (coding-system-base coding-system)
+ '(raw-text emacs-mule)))
+ charsets)
+ (if (eq charsets t)
+ (insert "This coding system can encode all charsets except for
+eight-bit-control and eight-bit-graphic.\n")
+ (insert "This coding system encodes the following charsets:\n ")
+ (while charsets
+ (insert " " (symbol-name (car charsets)))
+ (search-backward (symbol-name (car charsets)))
+ (help-xref-button 0 #'describe-character-set (car charsets))
+ (goto-char (point-max))
+ (setq charsets (cdr charsets))))))
+ (help-setup-xref (list #'describe-coding-system coding-system)
+ (interactive-p))))))
+
;;;###autoload
(defun describe-current-coding-system-briefly ()
The format is \"F[..],K[..],T[..],P>[..],P<[..], default F[..],P<[..],P<[..]\",
where mnemonics of the following coding systems come in this order
at the place of `..':
- buffer-file-coding-system (of the current buffer)
- eol-type of buffer-file-coding-system (of the current buffer)
- (keyboard-coding-system)
- eol-type of (keyboard-coding-system)
- (terminal-coding-system)
- eol-type of (terminal-coding-system)
- process-coding-system for read (of the current buffer, if any)
- eol-type of process-coding-system for read (of the current buffer, if any)
- process-coding-system for write (of the current buffer, if any)
- eol-type of process-coding-system for write (of the current buffer, if any)
- default-buffer-file-coding-system
- eol-type of default-buffer-file-coding-system
- default-process-coding-system for read
- eol-type of default-process-coding-system for read
- default-process-coding-system for write
- eol-type of default-process-coding-system"
+ `buffer-file-coding-system' (of the current buffer)
+ eol-type of `buffer-file-coding-system' (of the current buffer)
+ Value returned by `keyboard-coding-system'
+ eol-type of `keyboard-coding-system'
+ Value returned by `terminal-coding-system'.
+ eol-type of `terminal-coding-system'
+ `process-coding-system' for read (of the current buffer, if any)
+ eol-type of `process-coding-system' for read (of the current buffer, if any)
+ `process-coding-system' for write (of the current buffer, if any)
+ eol-type of `process-coding-system' for write (of the current buffer, if any)
+ `default-buffer-file-coding-system'
+ eol-type of `default-buffer-file-coding-system'
+ `default-process-coding-system' for read
+ eol-type of `default-process-coding-system' for read
+ `default-process-coding-system' for write
+ eol-type of `default-process-coding-system'"
(interactive)
(let* ((proc (get-buffer-process (current-buffer)))
(process-coding-systems (if proc (process-coding-system proc))))
(message
- "F[%c%c],K[%c%c],T[%c%c],P>[%c%c],P<[%c%c], default F[%c%c],P>[%c%c],P<[%c%c]"
+ "F[%c%s],K[%c%s],T[%c%s],P>[%c%s],P<[%c%s], default F[%c%s],P>[%c%s],P<[%c%s]"
(coding-system-mnemonic buffer-file-coding-system)
(coding-system-eol-type-mnemonic buffer-file-coding-system)
(coding-system-mnemonic (keyboard-coding-system))
(coding-system-eol-type-mnemonic (cdr default-process-coding-system))
)))
-;; Print symbol name and mnemonic letter of CODING-SYSTEM by `princ'.
+;; Print symbol name and mnemonic letter of CODING-SYSTEM with `princ'.
(defun print-coding-system-briefly (coding-system &optional doc-string)
(if (not coding-system)
(princ "nil\n")
;;;###autoload
(defun describe-current-coding-system ()
- "Display coding systems currently used in a detailed format."
+ "Display coding systems currently used, in detail."
(interactive)
(with-output-to-temp-buffer "*Help*"
(let* ((proc (get-buffer-process (current-buffer)))
(while l
(setq coding (symbol-value (car l)))
;; Do not list up the same coding system twice.
- (when (not (memq coding coding-list))
+ (when (and coding (not (memq coding coding-list)))
(setq coding-list (cons coding coding-list))
(princ (format " %d. %s " i coding))
(setq aliases (coding-system-get coding 'alias-coding-systems))
(princ (if (aref flags idx) 1 0))))
((eq type 4) ; CCL
(let (i len)
- (setq i 0 len (length (car flags)))
- (while (< i len)
- (princ (format " %x" (aref (car flags) i)))
- (setq i (1+ i)))
+ (if (symbolp (car flags))
+ (princ (format " %s" (car flags)))
+ (setq i 0 len (length (car flags)))
+ (while (< i len)
+ (princ (format " %x" (aref (car flags) i)))
+ (setq i (1+ i))))
(princ ",")
- (setq i 0 len (length (cdr flags)))
- (while (< i len)
- (princ (format " %x" (aref (cdr flags) i)))
- (setq i (1+ i)))))
+ (if (symbolp (cdr flags))
+ (princ (format "%s" (cdr flags)))
+ (setq i 0 len (length (cdr flags)))
+ (while (< i len)
+ (princ (format " %x" (aref (cdr flags) i)))
+ (setq i (1+ i))))))
(t (princ 0)))
(princ ":")
(princ (coding-system-doc-string coding-system))
;;;###autoload
(defun list-coding-systems (&optional arg)
"Display a list of all coding systems.
-It prints mnemonic letter, name, and description of each coding systems.
+This shows the mnemonic letter, name, and description of each coding system.
With prefix arg, the output format gets more cryptic,
-but contains full information about each coding systems."
+but still contains full information about each coding system."
(interactive "P")
(with-output-to-temp-buffer "*Help*"
- (if (null arg)
- (princ "\
+ (list-coding-systems-1 arg)))
+
+(defun list-coding-systems-1 (arg)
+ (if (null arg)
+ (princ "\
###############################################
# List of coding systems in the following format:
# MNEMONIC-LETTER -- CODING-SYSTEM-NAME
# DOC-STRING
")
- (princ "\
+ (princ "\
#########################
## LIST OF CODING SYSTEMS
## Each line corresponds to one coding system
## POST-READ-CONVERSION, PRE-WRITE-CONVERSION = function name to be called
##
"))
- (let ((bases (coding-system-list 'base-only))
- coding-system)
- (while bases
- (setq coding-system (car bases))
- (if (null arg)
- (print-coding-system-briefly coding-system 'doc-string)
- (print-coding-system coding-system))
- (setq bases (cdr bases))))))
-
-;;;###automatic
+ (let ((bases (coding-system-list 'base-only))
+ coding-system)
+ (while bases
+ (setq coding-system (car bases))
+ (if (null arg)
+ (print-coding-system-briefly coding-system 'doc-string)
+ (print-coding-system coding-system))
+ (setq bases (cdr bases)))))
+
+;;;###autoload
(defun list-coding-categories ()
"Display a list of all coding categories."
(with-output-to-temp-buffer "*Help*"
(defun describe-font-internal (font-info &optional verbose)
(print-list "name (opened by):" (aref font-info 0))
(print-list " full name:" (aref font-info 1))
- (let ((charset (aref font-info 2)))
- (print-list " charset:"
- (format "%s (%s)" charset (charset-description charset))))
- (print-list " size:" (format "%d" (aref font-info 3)))
- (print-list " height:" (format "%d" (aref font-info 4)))
- (print-list " baseline-offset:" (format "%d" (aref font-info 5)))
- (print-list "relative-compose:" (format "%d" (aref font-info 6))))
+ (print-list " size:" (format "%2d" (aref font-info 2)))
+ (print-list " height:" (format "%2d" (aref font-info 3)))
+ (print-list " baseline-offset:" (format "%2d" (aref font-info 4)))
+ (print-list "relative-compose:" (format "%2d" (aref font-info 5))))
;;;###autoload
(defun describe-font (fontname)
"Display information about fonts which partially match FONTNAME."
(interactive "sFontname (default, current choice for ASCII chars): ")
- (or window-system
- (error "No window system being used"))
+ (or (and window-system (fboundp 'fontset-list))
+ (error "No fontsets being used"))
(when (or (not fontname) (= (length fontname) 0))
(setq fontname (cdr (assq 'font (frame-parameters))))
(if (query-fontset fontname)
(setq fontname
- (nth 2 (assq 'ascii (aref (fontset-info fontname) 2))))))
+ (nth 1 (assq 'ascii (aref (fontset-info fontname) 2))))))
(let ((font-info (font-info fontname)))
(if (null font-info)
(message "No matching font")
(describe-font-internal font-info 'verbose)))))
;; Print information of FONTSET. If optional arg PRINT-FONTS is
-;; non-nil, print also names of all fonts in FONTSET. This function
-;; actually INSERT such information in the current buffer.
+;; non-nil, print also names of all opened fonts for FONTSET. This
+;; function actually INSERT such information in the current buffer.
(defun print-fontset (fontset &optional print-fonts)
- (let* ((fontset-info (fontset-info fontset))
- (size (aref fontset-info 0))
- (height (aref fontset-info 1))
- (fonts (and print-fonts (aref fontset-info 2)))
- (xlfd-fields (x-decompose-font-name fontset))
- style)
- (if xlfd-fields
- (let ((weight (aref xlfd-fields xlfd-regexp-weight-subnum))
- (slant (aref xlfd-fields xlfd-regexp-slant-subnum)))
- (if (string-match "^bold$\\|^demibold$" weight)
- (setq style (concat weight " "))
- (setq style "medium "))
- (cond ((string-match "^i$" slant)
- (setq style (concat style "italic")))
- ((string-match "^o$" slant)
- (setq style (concat style "slant")))
- ((string-match "^ri$" slant)
- (setq style (concat style "reverse italic")))
- ((string-match "^ro$" slant)
- (setq style (concat style "reverse slant")))))
- (setq style " ? "))
+ (let ((tail (aref (fontset-info fontset) 2))
+ elt chars font-spec opened prev-charset charset from to)
(beginning-of-line)
- (insert fontset)
- (indent-to 58)
- (insert (if (> size 0) (format "%2dx%d" size height) " -"))
- (indent-to 64)
- (insert style "\n")
- (when print-fonts
- (insert " O Charset / Fontname\n"
- " - ------------------\n")
- (sort-charset-list)
- (let ((l charset-list)
- charset font-info opened fontname)
- (while l
- (setq charset (car l) l (cdr l))
- (setq font-info (assq charset fonts))
- (if (null font-info)
- (setq opened ?? fontname "not specified")
- (if (nth 2 font-info)
- (if (stringp (nth 2 font-info))
- (setq opened ?o fontname (nth 2 font-info))
- (setq opened ?- fontname (nth 1 font-info)))
- (setq opened ?x fontname (nth 1 font-info))))
- (insert (format " %c %s\n %s\n"
- opened charset fontname)))))))
+ (insert "Fontset: " fontset "\n")
+ (insert "CHARSET or CHAR RANGE")
+ (indent-to 24)
+ (insert "FONT NAME\n")
+ (insert "---------------------")
+ (indent-to 24)
+ (insert "---------")
+ (insert "\n")
+ (while tail
+ (setq elt (car tail) tail (cdr tail))
+ (setq chars (car elt) font-spec (car (cdr elt)) opened (cdr (cdr elt)))
+ (if (symbolp chars)
+ (setq charset chars from nil to nil)
+ (if (integerp chars)
+ (setq charset (char-charset chars) from chars to chars)
+ (setq charset (char-charset (car chars))
+ from (car chars) to (cdr chars))))
+ (unless (eq charset prev-charset)
+ (insert (symbol-name charset))
+ (if from
+ (insert "\n")))
+ (when from
+ (let ((split (split-char from)))
+ (if (and (= (charset-dimension charset) 2)
+ (= (nth 2 split) 0))
+ (setq from
+ (make-char charset (nth 1 split)
+ (if (= (charset-chars charset) 94) 33 32))))
+ (insert " " from))
+ (when (/= from to)
+ (insert "-")
+ (let ((split (split-char to)))
+ (if (and (= (charset-dimension charset) 2)
+ (= (nth 2 split) 0))
+ (setq to
+ (make-char charset (nth 1 split)
+ (if (= (charset-chars charset) 94) 126 127))))
+ (insert to))))
+ (indent-to 24)
+ (if (stringp font-spec)
+ (insert font-spec)
+ (if (car font-spec)
+ (if (string-match "-" (car font-spec))
+ (insert "-" (car font-spec) "-*-")
+ (insert "-*-" (car font-spec) "-*-"))
+ (insert "-*-"))
+ (if (cdr font-spec)
+ (if (string-match "-" (cdr font-spec))
+ (insert (cdr font-spec))
+ (insert (cdr font-spec) "-*"))
+ (insert "*")))
+ (insert "\n")
+ (when print-fonts
+ (while opened
+ (indent-to 5)
+ (insert "[" (car opened) "]\n")
+ (setq opened (cdr opened))))
+ (setq prev-charset charset)
+ )))
;;;###autoload
(defun describe-fontset (fontset)
"Display information of FONTSET.
-
-It prints name, size, and style of FONTSET, and lists up fonts
-contained in FONTSET.
-
-The column WDxHT contains width and height (pixels) of each fontset
-\(i.e. those of ASCII font in the fontset). The letter `-' in this
-column means that the corresponding fontset is not yet used in any
-frame.
-
-The O column of each font contains one of the following letters.
- o -- font already opened
- - -- font not yet opened
- x -- font can't be opened
- ? -- no font specified
-
-The Charset column of each font contains a name of character set
-displayed by the font."
+This shows which font is used for which character(s)."
(interactive
- (if (not window-system)
- (error "No window system being used")
- (let ((fontset-list (mapcar '(lambda (x) (list x)) (fontset-list)))
+ (if (not (and window-system (fboundp 'fontset-list)))
+ (error "No fontsets being used")
+ (let ((fontset-list (nconc
+ (mapcar 'list (fontset-list))
+ (mapcar (lambda (x) (list (cdr x)))
+ fontset-alias-alist)))
(completion-ignore-case t))
(list (completing-read
"Fontset (default, used by the current frame): "
fontset-list nil t)))))
(if (= (length fontset) 0)
(setq fontset (cdr (assq 'font (frame-parameters)))))
- (if (not (query-fontset fontset))
+ (if (not (setq fontset (query-fontset fontset)))
(error "Current frame is using font, not fontset"))
- (let ((fontset-info (fontset-info fontset)))
- (with-output-to-temp-buffer "*Help*"
- (save-excursion
- (set-buffer standard-output)
- (insert "Fontset-Name\t\t\t\t\t\t WDxHT Style\n")
- (insert "------------\t\t\t\t\t\t ----- -----\n")
- (print-fontset fontset t)))))
+ (with-output-to-temp-buffer "*Help*"
+ (save-excursion
+ (set-buffer standard-output)
+ (print-fontset fontset t))))
;;;###autoload
(defun list-fontsets (arg)
"Display a list of all fontsets.
-
-It prints name, size, and style of each fontset.
-With prefix arg, it also lists up fonts contained in each fontset.
-See the function `describe-fontset' for the format of the list."
+This shows the name, size, and style of each fontset.
+With prefix arg, it also list the fonts contained in each fontset;
+see the function `describe-fontset' for the format of the list."
(interactive "P")
- (with-output-to-temp-buffer "*Help*"
- (save-excursion
- (set-buffer standard-output)
- (insert "Fontset-Name\t\t\t\t\t\t WDxHT Style\n")
- (insert "------------\t\t\t\t\t\t ----- -----\n")
- (let ((fontsets (fontset-list)))
- (while fontsets
- (print-fontset (car fontsets) arg)
- (setq fontsets (cdr fontsets)))))))
+ (if (not (and window-system (fboundp 'fontset-list)))
+ (error "No fontsets being used")
+ (with-output-to-temp-buffer "*Help*"
+ (save-excursion
+ ;; This code is duplicated near the end of mule-diag.
+ (set-buffer standard-output)
+ (let ((fontsets
+ (sort (fontset-list)
+ (function (lambda (x y)
+ (string< (fontset-plain-name x)
+ (fontset-plain-name y)))))))
+ (while fontsets
+ (if arg
+ (print-fontset (car fontsets) nil)
+ (insert "Fontset: " (car fontsets) "\n"))
+ (setq fontsets (cdr fontsets))))))))
\f
;;;###autoload
(defun list-input-methods ()
- "Print information of all input methods."
+ "Display information about all input methods."
(interactive)
(with-output-to-temp-buffer "*Help*"
- (if (not input-method-alist)
- (progn
- (princ "
-No input method is avairable, perhaps because you have not yet
+ (list-input-methods-1)))
+
+(defun list-input-methods-1 ()
+ (if (not input-method-alist)
+ (progn
+ (princ "
+No input method is available, perhaps because you have not yet
installed LEIM (Libraries of Emacs Input Method).
-LEIM is avairable from the same ftp directory as Emacs. For instance,
-if there exists an archive file emacs-20.2.tar.gz, there should also
-be a file leim-20.2.tar.gz. When you extract this file, LEIM files
-are put under the subdirectory emacs-20.2/leim. When you install
+LEIM is available from the same ftp directory as Emacs. For instance,
+if there exists an archive file `emacs-20.N.tar.gz', there should also
+be a file `leim-20.N.tar.gz'. When you extract this file, LEIM files
+are put under the subdirectory `emacs-20.N/leim'. When you install
Emacs again, you should be able to use various input methods."))
- (princ "LANGUAGE\n NAME (`TITLE' in mode line)\n")
- (princ " SHORT-DESCRIPTION\n------------------------------\n")
- (setq input-method-alist
- (sort input-method-alist
- (function (lambda (x y) (string< (nth 1 x) (nth 1 y))))))
- (let ((l input-method-alist)
- language elt)
- (while l
- (setq elt (car l) l (cdr l))
- (when (not (equal language (nth 1 elt)))
- (setq language (nth 1 elt))
- (princ language)
- (terpri))
- (princ (format " %s (`%s' in mode line)\n %s\n"
- (car elt)
- (let ((title (nth 3 elt)))
- (if (and (consp title) (stringp (car title)))
- (car title)
- title))
- (let ((description (nth 4 elt)))
- (string-match ".*" description)
- (match-string 0 description)))))))))
+ (princ "LANGUAGE\n NAME (`TITLE' in mode line)\n")
+ (princ " SHORT-DESCRIPTION\n------------------------------\n")
+ (setq input-method-alist
+ (sort input-method-alist
+ (function (lambda (x y) (string< (nth 1 x) (nth 1 y))))))
+ (let ((l input-method-alist)
+ language elt)
+ (while l
+ (setq elt (car l) l (cdr l))
+ (when (not (equal language (nth 1 elt)))
+ (setq language (nth 1 elt))
+ (princ language)
+ (terpri))
+ (princ (format " %s (`%s' in mode line)\n %s\n"
+ (car elt)
+ (let ((title (nth 3 elt)))
+ (if (and (consp title) (stringp (car title)))
+ (car title)
+ title))
+ (let ((description (nth 4 elt)))
+ (string-match ".*" description)
+ (match-string 0 description))))))))
\f
;;; DIAGNOSIS
;;;###autoload
(defun mule-diag ()
- "Display diagnosis of the multilingual environment (MULE).
+ "Display diagnosis of the multilingual environment (Mule).
-It prints various information related to the current multilingual
+This shows various information related to the current multilingual
environment, including lists of input methods, coding systems,
-character sets, and fontsets (if Emacs running under some window
-system)."
+character sets, and fontsets (if Emacs is running under a window
+system which uses fontsets)."
(interactive)
(with-output-to-temp-buffer "*Mule-Diagnosis*"
(save-excursion
(set-buffer standard-output)
- (insert "\t###############################\n"
- "\t### Diagnosis of your Emacs ###\n"
- "\t###############################\n\n"
+ (insert "###############################################\n"
+ "### Current Status of Multilingual Features ###\n"
+ "###############################################\n\n"
"CONTENTS: Section 1. General Information\n"
" Section 2. Display\n"
" Section 3. Input methods\n"
" Section 4. Coding systems\n"
" Section 5. Character sets\n")
- (if window-system
+ (if (and window-system (fboundp 'fontset-list))
(insert " Section 6. Fontsets\n"))
(insert "\n")
(insert-section 1 "General Information")
(insert "Version of this emacs:\n " (emacs-version) "\n\n")
+ (insert "Configuration options:\n " system-configuration-options "\n\n")
+ (insert "Multibyte characters awareness:\n"
+ (format " default: %S\n" default-enable-multibyte-characters)
+ (format " current-buffer: %S\n\n" enable-multibyte-characters))
+ (insert "Current language environment: " current-language-environment
+ "\n\n")
(insert-section 2 "Display")
(if window-system
(insert "\n\n")
(insert-section 3 "Input methods")
- (save-excursion (list-input-methods))
- (insert-buffer-substring "*Help*")
+ (list-input-methods-1)
(insert "\n")
(if default-input-method
- (insert "Default input method: " default-input-method "\n")
+ (insert (format "Default input method: %s\n" default-input-method))
(insert "No default input method is specified\n"))
(insert-section 4 "Coding systems")
- (save-excursion (list-coding-systems t))
- (insert-buffer-substring "*Help*")
- (save-excursion (list-coding-categories))
- (insert-buffer-substring "*Help*")
+ (list-coding-systems-1 t)
+ (princ "\
+############################
+## LIST OF CODING CATEGORIES (ordered by priority)
+## CATEGORY:CODING-SYSTEM
+##
+")
+ (let ((l coding-category-list))
+ (while l
+ (princ (format "%s:%s\n" (car l) (symbol-value (car l))))
+ (setq l (cdr l))))
(insert "\n")
(insert-section 5 "Character sets")
- (save-excursion (list-character-sets t))
- (insert-buffer-substring "*Help*")
+ (list-character-sets-2)
(insert "\n")
- (when window-system
+ (when (and window-system (fboundp 'fontset-list))
+ ;; This code duplicates most of list-fontsets.
(insert-section 6 "Fontsets")
- (save-excursion (list-fontsets t))
- (insert-buffer-substring "*Help*"))
- (help-mode))))
+ (insert "Fontset-Name\t\t\t\t\t\t WDxHT Style\n")
+ (insert "------------\t\t\t\t\t\t ----- -----\n")
+ (let ((fontsets (fontset-list)))
+ (while fontsets
+ (print-fontset (car fontsets) t)
+ (setq fontsets (cdr fontsets)))))
+ (print-help-return-message))))
\f
;;; DUMP DATA FILE
;;;###autoload
(defun dump-charsets ()
- "Dump information of all charsets into the file \"CHARSETS\".
+ "Dump information about all charsets into the file `CHARSETS'.
The file is saved in the directory `data-directory'."
(let ((file (expand-file-name "CHARSETS" data-directory))
buf)
(set-buffer buf)
(setq buffer-read-only nil)
(erase-buffer)
- (list-character-sets t)
+ (list-character-sets-2)
(insert-buffer-substring "*Help*")
(let (make-backup-files
coding-system-for-write)
;;;###autoload
(defun dump-codings ()
- "Dump information of all coding systems into the file \"CODINGS\".
+ "Dump information about all coding systems into the file `CODINGS'.
The file is saved in the directory `data-directory'."
(let ((file (expand-file-name "CODINGS" data-directory))
buf)