;;; binhex.el -- elisp native binhex decode
-;; Copyright (c) 1998 by Shenghuo Zhu <zsh@cs.rochester.edu>
+;; Copyright (c) 1998 Free Software Foundation, Inc.
;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
;; Create Date: Oct 1, 1998
-;; $Revision: 5.5 $
-;; Time-stamp: <Tue Oct 6 23:48:38 EDT 1998 zsh>
-;; Keywords: binhex
+;; Keywords: binhex news
-;; This file is not part of GNU Emacs, but the same permissions
-;; apply.
+;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;;; Code:
-(if (not (fboundp 'char-int))
- (fset 'char-int 'identity))
+(eval-when-compile (require 'cl))
+
+(eval-and-compile
+ (defalias 'binhex-char-int
+ (if (fboundp 'char-int)
+ 'char-int
+ 'identity)))
(defvar binhex-decoder-program "hexbin"
"*Non-nil value should be a string that names a uu decoder.
((boundp 'temporary-file-directory) temporary-file-directory)
("/tmp/")))
-(if (string-match "XEmacs" emacs-version)
+(if (featurep 'xemacs)
(defalias 'binhex-insert-char 'insert-char)
(defun binhex-insert-char (char &optional count ignored buffer)
(if (or (null buffer) (eq buffer (current-buffer)))
(defun binhex-string-big-endian (string)
(let ((ret 0) (i 0) (len (length string)))
(while (< i len)
- (setq ret (+ (lsh ret 8) (char-int (aref string i)))
+ (setq ret (+ (lsh ret 8) (binhex-char-int (aref string i)))
i (1+ i)))
ret))
(defun binhex-string-little-endian (string)
(let ((ret 0) (i 0) (shift 0) (len (length string)))
(while (< i len)
- (setq ret (+ ret (lsh (char-int (aref string i)) shift))
+ (setq ret (+ ret (lsh (binhex-char-int (aref string i)) shift))
i (1+ i)
shift (+ shift 8)))
ret))
(let ((pos (point-min)) len)
(vector
(prog1
- (setq len (char-int (char-after pos)))
+ (setq len (binhex-char-int (char-after pos)))
(setq pos (1+ pos)))
(buffer-substring pos (setq pos (+ pos len)))
(prog1
- (setq len (char-int (char-after pos)))
+ (setq len (binhex-char-int (char-after pos)))
(setq pos (1+ pos)))
(buffer-substring pos (setq pos (+ pos 4)))
(buffer-substring pos (setq pos (+ pos 4)))
(save-excursion
(goto-char start)
(when (re-search-forward binhex-begin-line end t)
- (if (boundp 'enable-multibyte-characters)
- (let ((multibyte
- (default-value 'enable-multibyte-characters)))
- (setq-default enable-multibyte-characters nil)
- (setq work-buffer
- (generate-new-buffer " *binhex-work*"))
- (setq-default enable-multibyte-characters multibyte))
+ (let (default-enable-multibyte-characters)
(setq work-buffer (generate-new-buffer " *binhex-work*")))
- (buffer-disable-undo work-buffer)
(beginning-of-line)
(setq bits 0 counter 0)
(while tmp
((= counter 2)
(binhex-push-char (logand (lsh bits -10) 255) 1 nil
work-buffer))))
- (if header-only nil
- (binhex-verify-crc work-buffer
- data-fork-start
- (+ data-fork-start (aref header 6) 2))
- (or (markerp end) (setq end (set-marker (make-marker) end)))
- (goto-char start)
- (insert-buffer-substring work-buffer
- data-fork-start (+ data-fork-start
- (aref header 6)))
- (delete-region (point) end)))
+ (if header-only nil
+ (binhex-verify-crc work-buffer
+ data-fork-start
+ (+ data-fork-start (aref header 6) 2))
+ (or (markerp end) (setq end (set-marker (make-marker) end)))
+ (goto-char start)
+ (insert-buffer-substring work-buffer
+ data-fork-start (+ data-fork-start
+ (aref header 6)))
+ (delete-region (point) end)))
(and work-buffer (kill-buffer work-buffer)))
(if header (aref header 1))))
(defun binhex-decode-region-external (start end)
- "Binhex decode region between START and END using external decoder"
+ "Binhex decode region between START and END using external decoder."
(interactive "r")
(let ((cbuf (current-buffer)) firstline work-buffer status
- (file-name (concat binhex-temporary-file-directory
- (binhex-decode-region start end t)
- ".data")))
+ (file-name (expand-file-name
+ (concat (binhex-decode-region start end t) ".data")
+ binhex-temporary-file-directory)))
(save-excursion
(goto-char start)
(when (re-search-forward binhex-begin-line nil t)