;;; emu-20.el --- emu API implementation for Emacs 20 and XEmacs/mule
-;; Copyright (C) 1997 Free Software Foundation, Inc.
+;; Copyright (C) 1997,1998 Free Software Foundation, Inc.
;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
-;; Version: $Id: emu-20.el,v 7.11 1997/08/30 07:46:38 morioka Exp $
;; Keywords: emulation, compatibility, Mule
;; This file is part of emu.
;;; Code:
-;;; @ binary access
+(require 'custom)
+(eval-when-compile (require 'wid-edit))
+
+
+;;; @ without code-conversion
;;;
(defmacro as-binary-process (&rest body)
`(let ((coding-system-for-write 'binary))
,@body))
-(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."
- (let ((coding-system-for-read 'binary))
- (insert-file-contents-literally 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 encode."
+ (let ((coding-system-for-write 'binary))
+ (write-region start end filename append visit lockname)))
+
+(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."
+ (let ((coding-system-for-read 'binary)
+ format-alist)
+ ;; Returns list of 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."
+ (let ((coding-system-for-read 'raw-text)
+ format-alist)
+ ;; Returns list of absolute file name and length of data inserted.
+ (insert-file-contents filename visit beg end replace)))
+
+(defun write-region-as-raw-text-CRLF (start end filename
+ &optional append visit lockname)
+ "Like `write-region', q.v., but write as network representation."
+ (let ((coding-system-for-write 'raw-text-dos))
+ (write-region start end filename append visit lockname)))
+
;;; @@ Mule emulating aliases
;;;
;;; @ MIME charset
;;;
-(defvar mime-charset-coding-system-alist
+(defcustom mime-charset-coding-system-alist
`,(let ((rest
- '((us-ascii . iso-8859-1)
+ '((us-ascii . raw-text)
(gb2312 . cn-gb-2312)
(iso-2022-jp-2 . iso-2022-7bit-ss2)
(x-ctext . ctext)
+ (unknown . undecided)
+ (x-unknown . undecided)
))
- (css (coding-system-list))
dest)
(while rest
(let ((pair (car rest)))
- (or (memq (car pair) css)
+ (or (find-coding-system (car pair))
(setq dest (cons pair dest))
))
(setq rest (cdr rest))
)
dest)
"Alist MIME CHARSET vs CODING-SYSTEM.
-MIME CHARSET and CODING-SYSTEM must be symbol.")
+MIME CHARSET and CODING-SYSTEM must be symbol."
+ :group 'i18n
+ :type '(repeat (cons symbol coding-system)))
(defsubst mime-charset-to-coding-system (charset &optional lbt)
"Return coding-system corresponding with CHARSET.
CHARSET is a symbol whose name is MIME charset.
-If optional argument LBT (`unix', `dos' or `mac') is specified, it is
-used as line break code type of coding-system."
+If optional argument LBT (`CRLF', `LF', `CR', `unix', `dos' or `mac')
+is specified, it is used as line break code type of coding-system."
(if (stringp charset)
(setq charset (intern (downcase charset)))
)
(if ret
(setq charset (cdr ret))
))
- (if (memq charset (coding-system-list))
- (if lbt
- (intern (concat (symbol-name charset) "-" (symbol-name lbt)))
- charset)))
-
-(defsubst 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
- (encode-coding-region start end cs)
- )))
-
-(defsubst decode-mime-charset-region (start end charset)
- "Decode the text between START and END as MIME CHARSET."
- (let ((cs (mime-charset-to-coding-system charset)))
- (if cs
- (decode-coding-region start end cs)
- )))
-
-(defsubst encode-mime-charset-string (string charset)
- "Encode the STRING as MIME CHARSET."
- (let ((cs (mime-charset-to-coding-system charset)))
- (if cs
- (encode-coding-string string cs)
- string)))
-
-(defsubst decode-mime-charset-string (string charset)
- "Decode the STRING as MIME CHARSET."
- (let ((cs (mime-charset-to-coding-system charset)))
- (if cs
- (decode-coding-string string cs)
- string)))
-
-
-(defvar default-mime-charset 'x-ctext
- "Default value of MIME charset used when MIME charset is not specified.
-It must be symbol.")
+ (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 (find-coding-system charset)
+ charset
+ ))
+
+(defsubst mime-charset-list ()
+ "Return a list of all existing MIME-charset."
+ (nconc (mapcar (function car) mime-charset-coding-system-alist)
+ (coding-system-list)))
+
+
+(defvar widget-mime-charset-prompt-value-history nil
+ "History of input to `widget-mime-charset-prompt-value'.")
+
+(define-widget 'mime-charset 'coding-system
+ "A mime-charset."
+ :format "%{%t%}: %v"
+ :tag "MIME-charset"
+ :prompt-history 'widget-mime-charset-prompt-value-history
+ :prompt-value 'widget-mime-charset-prompt-value
+ :action 'widget-mime-charset-action)
+
+(defun widget-mime-charset-prompt-value (widget prompt value unbound)
+ ;; Read mime-charset from minibuffer.
+ (intern
+ (completing-read (format "%s (default %s) " prompt value)
+ (mapcar (function
+ (lambda (sym)
+ (list (symbol-name sym))))
+ (mime-charset-list)))))
+
+(defun widget-mime-charset-action (widget &optional event)
+ ;; Read a mime-charset from the minibuffer.
+ (let ((answer
+ (widget-mime-charset-prompt-value
+ widget
+ (widget-apply widget :menu-tag-get)
+ (widget-value widget)
+ t)))
+ (widget-value-set widget answer)
+ (widget-apply widget :notify widget event)
+ (widget-setup)))
+
+(defcustom default-mime-charset 'x-ctext
+ "Default value of MIME-charset.
+It is used when MIME-charset is not specified.
+It must be symbol."
+ :group 'i18n
+ :type 'mime-charset)
(defsubst detect-mime-charset-region (start end)
"Return MIME charset for region between START and END."
(charsets-to-mime-charset (find-charset-region start end)))
+(defun write-region-as-mime-charset (charset start end filename
+ &optional append visit lockname)
+ "Like `write-region', q.v., but encode by MIME CHARSET."
+ (let ((coding-system-for-write
+ (or (mime-charset-to-coding-system charset)
+ 'binary)))
+ (write-region start end filename append visit lockname)))
+
;;; @ end
;;;