;;; poem-om.el --- poem implementation for Mule 1.* and Mule 2.*
-;; Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
+;; Copyright (C) 1995-1999 Free Software Foundation, Inc.
;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;; Katsumi Yamaoka <yamaoka@jpl.org>
;; Keywords: emulation, compatibility, Mule
;; This file is part of APEL (A Portable Emacs Library).
0))
))))
- (define-ccl-program ccl-decode-raw-text
+ (define-ccl-program poem-ccl-decode-raw-text
'(1
- ((read r1 r0)
+ ((r2 = 0)
+ (read r0)
(loop
- (r2 = (r1 == ?\x0d))
- (r2 &= (r0 == ?\x0a))
- (if r2
- ((write ?\x0a)
- (read r1 r0)
- (repeat))
- ((write r1)
- (r1 = (r0 + 0))
- (read r0)
- (repeat)
- ))))
- (write r1))
+ (if (r0 == ?\x0d)
+ ((r2 = 1)
+ (read-if (r1 == ?\x0a)
+ ((r0 = ?\x0a)
+ (r2 = 0)
+ (write-read-repeat r0))
+ ((write r0)
+ (r0 = (r1 + 0))
+ (repeat))))
+ ((r2 = 0)
+ (write-read-repeat r0)))))
+ ;; This EOF BLOCK won't work out in practice. So the last datum
+ ;; might be lost if it's value is ?\x0d.
+ (if r2
+ (write r0))
+ )
"Convert line-break code from CRLF to LF.")
- (define-ccl-program ccl-encode-raw-text
+ (define-ccl-program poem-ccl-encode-raw-text
'(1
((read r0)
(loop (write-read-repeat r0))))
"Pass through without any conversions.")
- (define-ccl-program ccl-encode-raw-text-CRLF
+ (define-ccl-program poem-ccl-encode-raw-text-CRLF
'(2
((loop
- (read r0)
- (if (r0 == ?\x0a)
- (write "\x0d\x0a")
- (write r0))
+ (read-if (r0 == ?\x0a)
+ (write "\x0d\x0a")
+ (write r0))
(repeat))))
"Convert line-break code from LF to CRLF.")
'raw-text 4 ?=
"No conversion"
nil
- (cons ccl-decode-raw-text ccl-encode-raw-text))
+ (cons poem-ccl-decode-raw-text poem-ccl-encode-raw-text))
(make-coding-system
'raw-text-dos 4 ?=
"No conversion"
nil
- (cons ccl-decode-raw-text ccl-encode-raw-text-CRLF))
-
- (make-coding-system
- 'binary nil ?=
- "No conversion")
+ (cons poem-ccl-decode-raw-text poem-ccl-encode-raw-text-CRLF))
+ )
+ (t
+ (defun poem-decode-raw-text (from to)
+ (save-restriction
+ (narrow-to-region from to)
+ (goto-char (point-min))
+ (while (re-search-forward "\r$" nil t)
+ (replace-match "")
+ )))
+ (defun poem-encode-raw-text-CRLF (from to)
+ (save-restriction
+ (narrow-to-region from to)
+ (goto-char (point-min))
+ (while (re-search-forward "\\(\\=\\|[^\r]\\)\n" nil t)
+ (replace-match "\\1\r\n")
+ )))
+
+ (make-coding-system 'raw-text nil ?= "No conversion")
+ (put 'raw-text 'post-read-conversion 'poem-decode-raw-text)
+
+ (make-coding-system 'raw-text-dos nil ?= "No conversion")
+ (put 'raw-text-dos 'post-read-conversion 'poem-decode-raw-text)
+ (put 'raw-text-dos 'pre-write-conversion 'poem-encode-raw-text-CRLF)
))
(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)))
+ ))
+
+(defun save-buffer-as-coding-system (coding-system &optional args)
+ "Like `save-buffer', q.v., but CODING-SYSTEM the first arg will be
+applied to `coding-system-for-write'."
+ (let ((file-coding-system coding-system))
+ (save-buffer args)))
+
+
;;; @ 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
+ mc-flag
(default-process-coding-system (cons *noconv* *noconv*))
program-coding-system-alist)
(,@ 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.
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))))))
+ ;; 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 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 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 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))
-(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))))
-
- (defun find-file-noselect-as-binary (filename &optional nowarn rawfile)
- "Like `find-file-noselect', q.v., but don't code and format conversion."
- (as-binary-input-file (find-file-noselect filename nowarn rawfile)))
- )
- (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))))
-
- (defun find-file-noselect-as-binary (filename &optional nowarn rawfile)
- "Like `find-file-noselect', q.v., but don't code and format conversion."
- (as-binary-input-file (find-file-noselect filename nowarn)))
- ))
+(defun save-buffer-as-binary (&optional args)
+ "Like `save-buffer', q.v., but don't encode."
+ (let ((file-coding-system 'binary))
+ (save-buffer args)))
-(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."
- (save-current-buffer
- (prog1
- (set-buffer (find-file-noselect-as-binary filename nowarn rawfile))
- (let ((flag (buffer-modified-p)))
- (save-excursion
- (goto-char (point-min))
- (while (re-search-forward "\r$" nil t)
- (replace-match "")))
- (set-buffer-modified-p flag)))))
+(defun save-buffer-as-raw-text-CRLF (&optional args)
+ "Like `save-buffer', q.v., but save as network representation."
+ (let ((file-coding-system 'raw-text-dos))
+ (save-buffer args)))
(defun open-network-stream-as-binary (name buffer host service)
"Like `open-network-stream', q.v., but don't code conversion."
process))
-;;; @ 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
- (running-emacs-19_29-or-later
- ;; 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.
- (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)))
- ))
-
-
;;; @ buffer representation
;;;
(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)
- "\
+;; Imported from Mule-2.3
+(defun-maybe 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)
projects / elisp / apel.git / blobdiff