;; 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.
;;; @ version specific features
;;;
+(require 'poe)
+
(cond (running-emacs-19
- (require 'emu-19)
-
;; Suggested by SASAKI Osamu <osamu@shuugr.bekkoame.or.jp>
;; (cf. [os2-emacs-ja:78])
(defun fontset-pixel-size (fontset)
(string-to-number
(substring
pat (1+ (match-beginning 0)) (1- (match-end 0))))
- 0)))
- )))
+ 0))
+ ))))
)
(running-emacs-18
- (require 'emu-18)
(defun make-overlay (beg end &optional buffer type))
(defun overlay-put (overlay prop value))
))
(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]"
- (code-convert-region start end *internal* coding-system)
- )
+ ;; 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]"
- (code-convert-region start end coding-system *internal*)
- )
+ ;; 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]"
- (code-convert-string str *internal* coding-system)
- )
+ (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]"
- (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))
- ))
+ (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)
mc-flag
(default-process-coding-system (cons *noconv* *noconv*))
program-coding-system-alist)
- (,@ body)
- )))
+ (,@ body))))
(defmacro as-binary-input-file (&rest body)
(` (let (mc-flag
(file-coding-system-for-read *noconv*)
)
- (,@ body)
- )))
+ (,@ body))))
(defmacro as-binary-output-file (&rest body)
(` (let (mc-flag
(file-coding-system *noconv*)
)
- (,@ body)
- )))
+ (,@ body))))
(defalias 'set-process-input-coding-system 'set-process-coding-system)
;;; @ binary access
;;;
-(defun insert-binary-file-contents-literally
- (filename &optional 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)))
+
+(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."
- (let (mc-flag
- (file-coding-system *noconv*))
- (insert-file-contents-literally filename visit beg end replace)
- ))
+ (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-binary-file-contents
- (filename &optional visit beg end replace)
- "Like `insert-file-contents', q.v., but don't code and format conversion."
- (let (mc-flag
- (file-coding-system *noconv*))
- (insert-file-contents 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)))
-(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)
- ))
+ (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."
- (let (mc-flag
- (file-coding-system *noconv*))
- (write-region start end filename append visit)
- ))
- )
+ (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
(code-convert start end *internal* cs)
)))
-(defun decode-mime-charset-region (start end charset)
+(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)))
+ (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."
(code-convert-string string *internal* cs)
string)))
-(defun decode-mime-charset-string (string charset)
+(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)))
+ (let ((cs (mime-charset-to-coding-system charset lbt))
+ newline)
(if cs
(decode-coding-string string cs)
- string)))
+ (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*)
(x-shiftjis . *sjis*)
))
-(defun mime-charset-to-coding-system (charset &optional lbt)
+(defsubst 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)))
- )))
+ (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) . 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-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-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)
+ lc-cns5 lc-cns6 lc-cns7) . iso-2022-int-1)
))
dest)
(while alist
(catch 'not-found
(let ((pair (car alist)))
(setq dest
- (cons (mapcar (function
- (lambda (cs)
- (if (boundp cs)
- (symbol-value cs)
- (throw 'not-found nil)
- )))
- (car pair))
- (cdr pair)))))
- (setq alist (cdr alist))))
- )
+ (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.
(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)
-(defalias 'char-length 'char-bytes)
+(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)))
-(defalias 'char-columns 'char-width)
+(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-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.
+ ;; 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))))
-;;;
- )
+ (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)
;;; @ regulation
(defun regulate-latin-char (chr)
(cond ((and (<= ?\e$B#A\e(B chr)(<= chr ?\e$B#Z\e(B))
- (+ (- chr ?\e$B#A\e(B) ?A)
- )
+ (+ (- chr ?\e$B#A\e(B) ?A))
((and (<= ?\e$B#a\e(B chr)(<= chr ?\e$B#z\e(B))
- (+ (- chr ?\e$B#a\e(B) ?a)
- )
+ (+ (- chr ?\e$B#a\e(B) ?a))
((eq chr ?\e$B!%\e(B) ?.)
((eq chr ?\e$B!$\e(B) ?,)
- (t chr)
- ))
+ (t chr)))
(defun regulate-latin-string (str)
(let ((len (length str))
(setq chr (sref str i))
(setq dest (concat dest
(char-to-string (regulate-latin-char chr))))
- (setq i (+ i (char-bytes chr)))
- )
+ (setq i (+ i (char-bytes chr))))
dest))
+;;; @ CCL
+;;;
+(eval-when-compile (require 'ccl))
+
+(defconst ccl-use-symbol-as-program nil
+ "t if CCL related builtins accept symbol as CCL program.
+(20.2 with ExCCL, 20.3 or later)
+Otherwise nil (20.2 without ExCCL or former).
+
+Because emu provides functions accepting symbol as CCL program,
+user programs should not refer this variable.")
+
+(defun make-ccl-coding-system
+ (coding-system mnemonic doc-string decoder encoder)
+ "Define a new CODING-SYSTEM (symbol) by CCL programs
+DECODER (symbol) and ENCODER (symbol)."
+ (setq decoder (symbol-value decoder)
+ encoder (symbol-value encoder))
+ (make-coding-system coding-system 4 mnemonic doc-string
+ nil ; Mule takes one more optional argument: EOL-TYPE.
+ (cons decoder encoder)))
+
+(eval-when-compile
+ (define-ccl-program test-ccl-eof-block
+ '(1
+ (read r0)
+ (write "[EOF]")))
+
+ (make-ccl-coding-system
+ 'test-ccl-eof-block-cs ?T "CCL_EOF_BLOCK tester"
+ 'test-ccl-eof-block 'test-ccl-eof-block)
+ )
+
+(defconst ccl-encoder-eof-block-is-broken
+ (eval-when-compile
+ (not (equal (encode-coding-string "" 'test-ccl-eof-block-cs)
+ "[EOF]")))
+ "t if CCL_EOF_BLOCK is not executed when coding system encounts EOF on
+encoding.")
+
+(defconst ccl-decoder-eof-block-is-broken
+ (eval-when-compile
+ (not (equal (decode-coding-string "" 'test-ccl-eof-block-cs)
+ "[EOF]")))
+ "t if CCL_EOF_BLOCK is not executed when coding system encounts EOF on
+decoding.")
+
+(defconst ccl-eof-block-is-broken
+ (or ccl-encoder-eof-block-is-broken
+ ccl-decoder-eof-block-is-broken))
+
+(defun ccl-execute (ccl-prog reg)
+ "Execute CCL-PROG with registers initialized by REGISTERS.
+If CCL-PROG is symbol, it is dereferenced.
+\[Emacs 20.3 emulating function]"
+ (exec-ccl
+ (if (symbolp ccl-prog) (symbol-value ccl-prog) ccl-prog)
+ reg))
+
+(defun ccl-execute-on-string (ccl-prog status string &optional contin)
+ "Execute CCL-PROG with initial STATUS on STRING.
+If CCL-PROG is symbol, it is dereferenced.
+\[Emacs 20.3 emulating function]"
+ (exec-ccl-string
+ (if (symbolp ccl-prog) (symbol-value ccl-prog) ccl-prog)
+ status string))
+
+
;;; @ end
;;;
projects / elisp / apel.git / blobdiff