-;;; @ version specific features
-;;;
-
-(cond (running-emacs-19
- (require 'emu-e19)
-
- ;; Suggested by SASAKI Osamu <osamu@shuugr.bekkoame.or.jp>
- ;; (cf. [os2-emacs-ja:78])
- (defun fontset-pixel-size (fontset)
- (let* ((font (get-font-info
- (aref (cdr (get-fontset-info fontset)) 0)))
- (open (aref font 4)))
- (if (= open 1)
- (aref font 5)
- (if (= open 0)
- (let ((pat (aref font 1)))
- (if (string-match "-[0-9]+-" pat)
- (string-to-number
- (substring
- pat (1+ (match-beginning 0)) (1- (match-end 0))))
- 0))
- ))))
- )
- (running-emacs-18
- (require 'emu-18)
- (defun make-overlay (beg end &optional buffer type))
- (defun overlay-put (overlay prop value))
- ))
-
-
-;;; @ character set
-;;;
-
-(defalias 'make-char 'make-character)
-
-(defalias 'find-non-ascii-charset-string 'find-charset-string)
-(defalias 'find-non-ascii-charset-region 'find-charset-region)
-
-(defalias 'charset-bytes 'char-bytes)
-(defalias 'charset-description 'char-description)
-(defalias 'charset-registry 'char-registry)
-(defalias 'charset-columns 'char-width)
-(defalias 'charset-direction 'char-direction)
-
-(defun charset-chars (charset)
- "Return the number of characters per dimension of CHARSET."
- (if (= (logand (nth 2 (character-set charset)) 1) 1)
- 96
- 94))
-
-
-;;; @ coding system
-;;;
-
-(defun encode-coding-region (start end coding-system)
- "Encode the text between START and END to CODING-SYSTEM.
-\[EMACS 20 emulating function]"
- ;; If `coding-system' is nil, do nothing.
- (code-convert-region start end *internal* coding-system))
-
-(defun decode-coding-region (start end coding-system)
- "Decode the text between START and END which is encoded in CODING-SYSTEM.
-\[EMACS 20 emulating function]"
- ;; If `coding-system' is nil, do nothing.
- (code-convert-region start end coding-system *internal*))
-
-;; XXX: Should we support optional NOCOPY argument? (only in Emacs 20.x)
-(defun encode-coding-string (str coding-system)
- "Encode the STRING to CODING-SYSTEM.
-\[EMACS 20 emulating function]"
- (if coding-system
- (code-convert-string str *internal* coding-system)
- ;;(code-convert-string str *internal* nil) returns nil instead of str.
- str))
-
-;; XXX: Should we support optional NOCOPY argument? (only in Emacs 20.x)
-(defun decode-coding-string (str coding-system)
- "Decode the string STR which is encoded in CODING-SYSTEM.
-\[EMACS 20 emulating function]"
- (if coding-system
- (let ((len (length str))
- ret)
- (while (and (< 0 len)
- (null (setq ret
- (code-convert-string
- (substring str 0 len)
- coding-system *internal*))))
- (setq len (1- len)))
- (concat ret (substring str len)))
- str))
-
-(defalias 'detect-coding-region 'code-detect-region)
-
-(defalias 'set-buffer-file-coding-system 'set-file-coding-system)
-
-(defmacro as-binary-process (&rest body)
- (` (let (selective-display ; Disable ^M to nl translation.
- ;; Mule
- mc-flag
- (default-process-coding-system (cons *noconv* *noconv*))
- program-coding-system-alist)
- (,@ body))))
-
-(defmacro as-binary-input-file (&rest body)
- (` (let (mc-flag
- (file-coding-system-for-read *noconv*)
- )
- (,@ body))))
-
-(defmacro as-binary-output-file (&rest body)
- (` (let (mc-flag
- (file-coding-system *noconv*)
- )
- (,@ body))))
-
-(defalias 'set-process-input-coding-system 'set-process-coding-system)
-
-
-;;; @ binary access
-;;;
-
-(defun insert-file-contents-as-binary (filename
- &optional visit beg end replace)
- "Like `insert-file-contents', q.v., but don't code and format conversion.
-Like `insert-file-contents-literary', but it allows find-file-hooks,
-automatic uncompression, etc.
-
-Namely this function ensures that only format decoding and character
-code conversion will not take place."
- (as-binary-input-file
- ;; Returns list absolute file name and length of data inserted.
- (insert-file-contents filename visit beg end replace)))
-
-(defalias 'insert-binary-file-contents 'insert-file-contents-as-binary)
-(make-obsolete 'insert-binary-file-contents 'insert-file-contents-as-binary)
-
-(defun insert-file-contents-as-raw-text (filename
- &optional visit beg end replace)
- "Like `insert-file-contents', q.v., but don't code and format conversion.
-Like `insert-file-contents-literary', but it allows find-file-hooks,
-automatic uncompression, etc.
-Like `insert-file-contents-as-binary', but it converts line-break
-code."
- (save-excursion
- (save-restriction
- (narrow-to-region (point)(point))
- (let ((return-val
- ;; Returns list absolute file name and length of data inserted.
- (insert-file-contents-as-binary filename visit beg end replace)))
- (goto-char (point-min))
- (while (re-search-forward "\r$" nil t)
- (replace-match ""))
- (list (car return-val) (buffer-size))))))
-
-(defun insert-binary-file-contents-literally (filename
- &optional visit beg end replace)
- "Like `insert-file-contents-literally', q.v., but don't code conversion.
-A buffer may be modified in several ways after reading into the buffer due
-to advanced Emacs features, such as file-name-handlers, format decoding,
-find-file-hooks, etc.
- This function ensures that none of these modifications will take place."
- (as-binary-input-file
- ;; Returns list absolute file name and length of data inserted.
- (insert-file-contents-literally filename visit beg end replace)))
-
-(cond
- (running-emacs-19_29-or-later
- ;; for MULE 2.3 based on Emacs 19.34.
- (defun write-region-as-binary (start end filename
- &optional append visit lockname)
- "Like `write-region', q.v., but don't code conversion."
- (as-binary-output-file
- (write-region start end filename append visit lockname)))
-
- (defun write-region-as-raw-text-CRLF (start end filename
- &optional append visit lockname)
- "Like `write-region', q.v., but don't code conversion."
- (let ((the-buf (current-buffer)))
- (with-temp-buffer
- (insert-buffer-substring the-buf start end)
- (goto-char (point-min))
- (while (re-search-forward "\\(\\=\\|[^\r]\\)\n" nil t)
- (replace-match "\\1\r\n"))
- (write-region-as-binary (point-min)(point-max)
- filename append visit lockname))))
- )
- (t
- ;; for MULE 2.3 based on Emacs 19.28.
- (defun write-region-as-binary (start end filename
- &optional append visit lockname)
- "Like `write-region', q.v., but don't code conversion."
- (as-binary-output-file
- (write-region start end filename append visit)))
-
- (defun write-region-as-raw-text-CRLF (start end filename
- &optional append visit lockname)
- "Like `write-region', q.v., but don't code conversion."
- (let ((the-buf (current-buffer)))
- (with-temp-buffer
- (insert-buffer-substring the-buf start end)
- (goto-char (point-min))
- (while (re-search-forward "\\(\\=\\|[^\r]\\)\n" nil t)
- (replace-match "\\1\r\n"))
- (write-region-as-binary (point-min)(point-max)
- filename append visit))))
- ))
-
-
-;;; @ MIME charset
-;;;
-
-(defun encode-mime-charset-region (start end charset)
- "Encode the text between START and END as MIME CHARSET."
- (let ((cs (mime-charset-to-coding-system charset)))
- (if cs
- (code-convert start end *internal* cs)
- )))
-
-(defun decode-mime-charset-region (start end charset &optional lbt)
- "Decode the text between START and END as MIME CHARSET."
- (let ((cs (mime-charset-to-coding-system charset lbt))
- newline)
- (if cs
- (code-convert start end cs *internal*)
- (if (and lbt (setq cs (mime-charset-to-coding-system charset)))
- (progn
- (if (setq newline (cdr (assq lbt '((CRLF . "\r\n") (CR . "\r")))))
- (save-excursion
- (save-restriction
- (narrow-to-region start end)
- (goto-char (point-min))
- (while (search-forward newline nil t)
- (replace-match "\n")))
- (code-convert (point-min) (point-max) cs *internal*))
- (code-convert start end cs *internal*)))))))
-
-(defun encode-mime-charset-string (string charset)
- "Encode the STRING as MIME CHARSET."
- (let ((cs (mime-charset-to-coding-system charset)))
- (if cs
- (code-convert-string string *internal* cs)
- string)))
-
-(defun decode-mime-charset-string (string charset &optional lbt)
- "Decode the STRING which is encoded in MIME CHARSET."
- (let ((cs (mime-charset-to-coding-system charset lbt))
- newline)
- (if cs
- (decode-coding-string string cs)
- (if (and lbt (setq cs (mime-charset-to-coding-system charset)))
- (progn
- (if (setq newline (cdr (assq lbt '((CRLF . "\r\n") (CR . "\r")))))
- (with-temp-buffer
- (insert string)
- (goto-char (point-min))
- (while (search-forward newline nil t)
- (replace-match "\n"))
- (code-convert (point-min) (point-max) cs *internal*)
- (buffer-string))
- (decode-coding-string string cs)))
- string))))
-
-(cond
- (running-emacs-19_29-or-later
- ;; for MULE 2.3 based on Emacs 19.34.
- (defun write-region-as-mime-charset (charset start end filename
- &optional append visit lockname)
- "Like `write-region', q.v., but code-convert by MIME CHARSET."
- (let ((file-coding-system
- (or (mime-charset-to-coding-system charset)
- *noconv*)))
- (write-region start end filename append visit lockname)))
- )
- (t
- ;; for MULE 2.3 based on Emacs 19.28.
- (defun write-region-as-mime-charset (charset start end filename
- &optional append visit lockname)
- "Like `write-region', q.v., but code-convert by MIME CHARSET."
- (let ((file-coding-system
- (or (mime-charset-to-coding-system charset)
- *noconv*)))
- (write-region start end filename append visit)))
- ))
-
-
-;;; @@ to coding-system
-;;;
-
-(require 'cyrillic)
-
-(defvar mime-charset-coding-system-alist
- '((iso-8859-1 . *ctext*)
- (x-ctext . *ctext*)
- (gb2312 . *euc-china*)
- (koi8-r . *koi8*)
- (iso-2022-jp-2 . *iso-2022-ss2-7*)
- (x-iso-2022-jp-2 . *iso-2022-ss2-7*)
- (shift_jis . *sjis*)
- (x-shiftjis . *sjis*)
- ))
-
-(defsubst mime-charset-to-coding-system (charset &optional lbt)
- (if (stringp charset)
- (setq charset (intern (downcase charset)))
- )
- (setq charset (or (cdr (assq charset mime-charset-coding-system-alist))
- (intern (concat "*" (symbol-name charset) "*"))))
- (if lbt
- (setq charset (intern (format "%s%s" charset
- (cond ((eq lbt 'CRLF) 'dos)
- ((eq lbt 'LF) 'unix)
- ((eq lbt 'CR) 'mac)
- (t lbt)))))
- )
- (if (coding-system-p charset)
- charset
- ))
-
-
-;;; @@ detection
-;;;
-
-(defvar charsets-mime-charset-alist
- (let ((alist
- '(((lc-ascii) . us-ascii)
- ((lc-ascii lc-ltn1) . iso-8859-1)
- ((lc-ascii lc-ltn2) . iso-8859-2)
- ((lc-ascii lc-ltn3) . iso-8859-3)
- ((lc-ascii lc-ltn4) . iso-8859-4)
-;;; ((lc-ascii lc-crl) . iso-8859-5)
- ((lc-ascii lc-crl) . koi8-r)
- ((lc-ascii lc-arb) . iso-8859-6)
- ((lc-ascii lc-grk) . iso-8859-7)
- ((lc-ascii lc-hbw) . iso-8859-8)
- ((lc-ascii lc-ltn5) . iso-8859-9)
- ((lc-ascii lc-roman lc-jpold lc-jp) . iso-2022-jp)
- ((lc-ascii lc-kr) . euc-kr)
- ((lc-ascii lc-cn) . gb2312)
- ((lc-ascii lc-big5-1 lc-big5-2) . big5)
- ((lc-ascii lc-roman lc-ltn1 lc-grk
- lc-jpold lc-cn lc-jp lc-kr
- lc-jp2) . iso-2022-jp-2)
- ((lc-ascii lc-roman lc-ltn1 lc-grk
- lc-jpold lc-cn lc-jp lc-kr lc-jp2
- lc-cns1 lc-cns2) . iso-2022-int-1)
- ((lc-ascii lc-roman
- lc-ltn1 lc-ltn2 lc-crl lc-grk
- lc-jpold lc-cn lc-jp lc-kr lc-jp2
- lc-cns1 lc-cns2 lc-cns3 lc-cns4
- lc-cns5 lc-cns6 lc-cns7) . iso-2022-int-1)
- ))
- dest)
- (while alist
- (catch 'not-found
- (let ((pair (car alist)))
- (setq dest
- (append dest
- (list
- (cons (mapcar (function
- (lambda (cs)
- (if (boundp cs)
- (symbol-value cs)
- (throw 'not-found nil)
- )))
- (car pair))
- (cdr pair)))))))
- (setq alist (cdr alist)))
- dest))
-
-(defvar default-mime-charset 'x-ctext
- "Default value of MIME-charset.
-It is used when MIME-charset is not specified.
-It must be symbol.")
-
-(defun detect-mime-charset-region (start end)
- "Return MIME charset for region between START and END."
- (charsets-to-mime-charset
- (cons lc-ascii (find-charset-region start end))))
-
-
-;;; @ buffer representation
-;;;
-
-(defsubst-maybe set-buffer-multibyte (flag)
- "Set the multibyte flag of the current buffer to FLAG.
-If FLAG is t, this makes the buffer a multibyte buffer.
-If FLAG is nil, this makes the buffer a single-byte buffer.
-The buffer contents remain unchanged as a sequence of bytes
-but the contents viewed as characters do change.
-\[Emacs 20.3 emulating function]"
- (setq mc-flag flag)
- )
-
-
-;;; @ character
-;;;
-
-(defalias 'char-charset 'char-leading-char)
-
-(defun split-char (character)
- "Return list of charset and one or two position-codes of CHARACTER."
- (let ((p (1- (char-bytes character)))
- dest)
- (while (>= p 1)
- (setq dest (cons (- (char-component character p) 128) dest)
- p (1- p)))
- (cons (char-charset character) dest)))
-
-(defmacro char-next-index (char index)
- "Return index of character succeeding CHAR whose index is INDEX."
- (` (+ (, index) (char-bytes (, char)))))
-
-;;; @@ obsoleted aliases
-;;;
-;;; You should not use them.
-
-(defalias 'char-length 'char-bytes)
-;;(defalias 'char-columns 'char-width)
-
-
-;;; @ string
-;;;
-
-(defalias 'string-columns 'string-width)
-
-(defalias 'string-to-int-list 'string-to-char-list)
-
-(or (fboundp 'truncate-string)
- ;; Imported from Mule-2.3
- (defun truncate-string (str width &optional start-column)
- "\
-Truncate STR to fit in WIDTH columns.
-Optional non-nil arg START-COLUMN specifies the starting column.
-\[emu-mule.el; Mule 2.3 emulating function]"
- (or start-column
- (setq start-column 0))
- (let ((max-width (string-width str))
- (len (length str))
- (from 0)
- (column 0)
- to-prev to ch)
- (if (>= width max-width)
- (setq width max-width))
- (if (>= start-column width)
- ""
- (while (< column start-column)
- (setq ch (aref str from)
- column (+ column (char-width ch))
- from (+ from (char-bytes ch))))
- (if (< width max-width)
- (progn
- (setq to from)
- (while (<= column width)
- (setq ch (aref str to)
- column (+ column (char-width ch))
- to-prev to
- to (+ to (char-bytes ch))))
- (setq to to-prev)))
- (substring str from to))))
- )
-
-(defalias 'looking-at-as-unibyte 'looking-at)