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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




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