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[Emacs-diffs] Changes to hex-util.el
From: |
Glenn Morris |
Subject: |
[Emacs-diffs] Changes to hex-util.el |
Date: |
Sat, 01 Dec 2007 21:04:06 +0000 |
CVSROOT: /sources/emacs
Module name: emacs
Changes by: Glenn Morris <gm> 07/12/01 21:04:06
Index: hex-util.el
===================================================================
RCS file: hex-util.el
diff -N hex-util.el
--- hex-util.el 28 Nov 2007 08:02:11 -0000 1.9
+++ /dev/null 1 Jan 1970 00:00:00 -0000
@@ -1,75 +0,0 @@
-;;; hex-util.el --- Functions to encode/decode hexadecimal string.
-
-;; Copyright (C) 1999, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007 Free Software Foundation, Inc.
-
-;; Author: Shuhei KOBAYASHI <address@hidden>
-;; Keywords: data
-
-;; 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
-;; the Free Software Foundation; either version 3, or (at your option)
-;; any later version.
-
-;; GNU Emacs 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., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
-
-;;; Commentary:
-
-;;; Code:
-
-(eval-when-compile
- (defmacro hex-char-to-num (chr)
- `(let ((chr ,chr))
- (cond
- ((and (<= ?a chr)(<= chr ?f)) (+ (- chr ?a) 10))
- ((and (<= ?A chr)(<= chr ?F)) (+ (- chr ?A) 10))
- ((and (<= ?0 chr)(<= chr ?9)) (- chr ?0))
- (t (error "Invalid hexadecimal digit `%c'" chr)))))
- (defmacro num-to-hex-char (num)
- `(aref "0123456789abcdef" ,num)))
-
-(defun decode-hex-string (string)
- "Decode hexadecimal STRING to octet string."
- (let* ((len (length string))
- (dst (make-string (/ len 2) 0))
- (idx 0)(pos 0))
- (while (< pos len)
- ;; logior and lsh are not byte-coded.
- ;; (aset dst idx (logior (lsh (hex-char-to-num (aref string pos)) 4)
- ;; (hex-char-to-num (aref string (1+ pos)))))
- (aset dst idx (+ (* (hex-char-to-num (aref string pos)) 16)
- (hex-char-to-num (aref string (1+ pos)))))
- (setq idx (1+ idx)
- pos (+ 2 pos)))
- dst))
-
-(defun encode-hex-string (string)
- "Encode octet STRING to hexadecimal string."
- (let* ((len (length string))
- (dst (make-string (* len 2) 0))
- (idx 0)(pos 0))
- (while (< pos len)
- ;; logand and lsh are not byte-coded.
- ;; (aset dst idx (num-to-hex-char (logand (lsh (aref string pos) -4)
15)))
- (aset dst idx (num-to-hex-char (/ (aref string pos) 16)))
- (setq idx (1+ idx))
- ;; (aset dst idx (num-to-hex-char (logand (aref string pos) 15)))
- (aset dst idx (num-to-hex-char (% (aref string pos) 16)))
- (setq idx (1+ idx)
- pos (1+ pos)))
- dst))
-
-(provide 'hex-util)
-
-;; arch-tag: fe8aaa79-6c86-400e-813f-5a8cc4cb3859
-;;; hex-util.el ends here
- [Emacs-diffs] Changes to hex-util.el,
Glenn Morris <=