+;;; emu-mule.el --- emu module for Mule 1.* and Mule 2.*
+
+;; Copyright (C) 1995,1996,1997,1998 MORIOKA Tomohiko
+
+;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;; Katsumi Yamaoka <yamaoka@jpl.org>
+;; Keywords: emulation, compatibility, Mule
+
+;; This file is part of emu.
+
+;; This program is free software; you can redistribute it and/or
+;; modify it under the terms of the GNU General Public License as
+;; published by the Free Software Foundation; either version 2, or (at
+;; your option) any later version.
+
+;; This program is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;; General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Code:
+
+;;; @ version specific features
;;;
-;;; emu-mule: Mule 2.* emulation module for Mule
+
+(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
;;;
-;;; $Id: emu-mule.el,v 6.1 1995/08/26 18:07:55 morioka Exp $
+
+(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)
+
+
+;;; @ coding system
;;;
-(defun some-element (pred seq)
- "Return the first element of sequence SEQ
-whose return value applied function PRED is not nil.
-[emu-mule; tl-list function]"
- (let ((i 0)(len (length seq)) element)
- (catch 'tag
- (while (< i len)
- (if (funcall pred (setq element (elt seq i)))
- (throw 'tag element)
- )
- (setq i (+ i 1))
- ))
- ))
+(defun encode-coding-region (start end coding-system)
+ "Encode the text between START and END to CODING-SYSTEM.
+\[EMACS 20 emulating function]"
+ (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]"
+ (code-convert-region start end coding-system *internal*)
+ )
+
+(defun encode-coding-string (str coding-system)
+ "Encode the STRING to CODING-SYSTEM.
+\[EMACS 20 emulating function]"
+ (code-convert-string str *internal* coding-system)
+ )
+
+(defun decode-coding-string (str coding-system)
+ "Decode the string STR which is encoded in CODING-SYSTEM.
+\[EMACS 20 emulating function]"
+ (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))
+ ))
+
+(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)
+ )))
-(defun get-lc (chr)
- "Return leading character of CHAR or LEADING-CHARACTER."
- (if (< chr 128)
- lc-ascii
- chr))
+(defalias 'set-process-input-coding-system 'set-process-coding-system)
-(if (not (boundp 'emacs-major-version))
- (defconst emacs-major-version (string-to-int emacs-version))
+;;; @ 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."
+ (let (mc-flag
+ (file-coding-system *noconv*))
+ (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-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 (mc-flag
+ (file-coding-system *noconv*))
+ (insert-file-contents-literally filename visit beg end replace)
+ ))
+
+(if 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."
+ (let (mc-flag
+ (file-coding-system *noconv*))
+ (write-region start end filename append visit lockname)
+ ))
+ ;; 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."
+ (let (mc-flag
+ (file-coding-system *noconv*))
+ (write-region start end filename append visit)
+ ))
)
-(cond ((>= emacs-major-version 19)
- (defun fontset-pixel-size (fontset)
- (elt
- (get-font-info
- (some-element
- (function
- (lambda (n)
- (not (= n -1))
- ))
- (cdr (get-fontset-info fontset))
- )) 5))
- )
- (t (require 'emu-18)))
+
+;;; @ 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)
+ "Decode the text between START and END as MIME CHARSET."
+ (let ((cs (mime-charset-to-coding-system charset)))
+ (if cs
+ (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)
+ "Decode the STRING which is encoded in MIME CHARSET."
+ (let ((cs (mime-charset-to-coding-system charset)))
+ (if cs
+ (decode-coding-string string cs)
+ string)))
+
+
+;;; @@ to coding-system
+;;;
+
+(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*)
+ ))
+
+(defun mime-charset-to-coding-system (charset &optional lbt)
+ (if (stringp charset)
+ (setq charset (intern (downcase charset)))
+ )
+ (let ((cs
+ (or (cdr (assq charset mime-charset-coding-system-alist))
+ (let ((cs (intern (concat "*" (symbol-name charset) "*"))))
+ (and (coding-system-p cs) cs)
+ ))))
+ (if (or (null lbt)
+ (null cs))
+ cs
+ (intern (concat (symbol-name cs) (symbol-name lbt)))
+ )))
+
+
+;;; @@ 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))))
+
+
+;;; @ character
+;;;
+
+(defalias 'char-charset 'char-leading-char)
+
+(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))))
+;;;
+ )
+
+
+;;; @ regulation
+;;;
+
+(defun regulate-latin-char (chr)
+ (cond ((and (<= ?\e$B#A\e(B chr)(<= chr ?\e$B#Z\e(B))
+ (+ (- chr ?\e$B#A\e(B) ?A)
+ )
+ ((and (<= ?\e$B#a\e(B chr)(<= chr ?\e$B#z\e(B))
+ (+ (- chr ?\e$B#a\e(B) ?a)
+ )
+ ((eq chr ?\e$B!%\e(B) ?.)
+ ((eq chr ?\e$B!$\e(B) ?,)
+ (t chr)
+ ))
+
+(defun regulate-latin-string (str)
+ (let ((len (length str))
+ (i 0)
+ chr (dest ""))
+ (while (< i len)
+ (setq chr (sref str i))
+ (setq dest (concat dest
+ (char-to-string (regulate-latin-char chr))))
+ (setq i (+ i (char-bytes chr)))
+ )
+ dest))
+
+
+;;; @ end
+;;;
(provide 'emu-mule)
+
+;;; emu-mule.el ends here
projects / elisp / apel.git / blobdiff