-;;; @ 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)
-
-
-;;; @ with code-conversion
-;;;
-
-(defun insert-file-contents-as-coding-system
- (coding-system filename &optional visit beg end replace)
- "Like `insert-file-contents', q.v., but CODING-SYSTEM the first arg will
-be applied to `file-coding-system-for-read'."
- (let ((file-coding-system-for-read coding-system))
- (insert-file-contents filename visit beg end replace)))
-
-(cond
- ((and (>= emacs-major-version 19) (>= emacs-minor-version 29))
- ;; for MULE 2.3 based on Emacs 19.34.
- (defun write-region-as-coding-system
- (coding-system start end filename &optional append visit lockname)
- "Like `write-region', q.v., but CODING-SYSTEM the first arg will be
-applied to `file-coding-system'."
- (let ((file-coding-system coding-system)
- jka-compr-compression-info-list jam-zcat-filename-list)
- (write-region start end filename append visit lockname)))
-
- (defun find-file-noselect-as-coding-system
- (coding-system filename &optional nowarn rawfile)
- "Like `find-file-noselect', q.v., but CODING-SYSTEM the first arg will
-be applied to `file-coding-system-for-read'."
- (let ((file-coding-system-for-read coding-system))
- (find-file-noselect filename nowarn rawfile)))
- )
- (t
- ;; for MULE 2.3 based on Emacs 19.28 or MULE 1.*.
- (defun write-region-as-coding-system
- (coding-system start end filename &optional append visit lockname)
- "Like `write-region', q.v., but CODING-SYSTEM the first arg will be
-applied to `file-coding-system'."
- (let ((file-coding-system coding-system)
- jka-compr-compression-info-list jam-zcat-filename-list)
- (write-region start end filename append visit)))
-
- (defun find-file-noselect-as-coding-system
- (coding-system filename &optional nowarn rawfile)
- "Like `find-file-noselect', q.v., but CODING-SYSTEM the first arg will
-be applied to `file-coding-system-for-read'."
- (let ((file-coding-system-for-read coding-system))
- (find-file-noselect filename nowarn)))
- ))
-
-
-;;; @ without code-conversion
-;;;
-
-(make-coding-system 'binary nil ?= "No conversion")
-
-(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)
-
-(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)))
-
-(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)))
-
-(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."
- ;; Returns list absolute file name and length of data inserted.
- (insert-file-contents-as-coding-system 'raw-text
- filename visit beg end replace))
-
-(defun write-region-as-binary (start end filename
- &optional append visit lockname)
- "Like `write-region', q.v., but don't code conversion."
- (write-region-as-coding-system 'binary
- 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."
- (write-region-as-coding-system 'raw-text-dos
- start end filename append visit lockname))
-
-(defun open-network-stream-as-binary (name buffer host service)
- "Like `open-network-stream', q.v., but don't code conversion."
- (let ((process (open-network-stream name buffer host service)))
- (set-process-coding-system process *noconv* *noconv*)
- process))
-
-(defun find-file-noselect-as-binary (filename &optional nowarn rawfile)
- "Like `find-file-noselect', q.v., but don't code and format conversion."
- (find-file-noselect-as-coding-system 'binary filename nowarn rawfile))
-
-(defun find-file-noselect-as-raw-text (filename &optional nowarn rawfile)
- "Like `find-file-noselect', q.v., but it does not code and format
-conversion except for line-break code."
- (find-file-noselect-as-coding-system 'raw-text filename nowarn rawfile))
-
-