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65 lines
2.0 KiB
C
Executable File
65 lines
2.0 KiB
C
Executable File
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/*=============================================================================
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GNU UnRTF, a command-line program to convert RTF documents to other formats.
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Copyright (C) 2000,2001 Zachary Thayer Smith
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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The author is reachable by electronic mail at tuorfa@yahoo.com.
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=============================================================================*/
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/*----------------------------------------------------------------------
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* Module name: util
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* Author name: Zach Smith
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* Create date: 01 Aug 01
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* Purpose: Utility functions.
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*----------------------------------------------------------------------
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* Changes:
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* 22 Sep 01, tuorfa@yahoo.com: added function-level comment blocks
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*--------------------------------------------------------------------*/
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#include <stdlib.h>
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#include <ctype.h>
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/*========================================================================
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* Name: h2toi
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* Purpose: Converts a 2-digit hexadecimal value to an unsigned integer.
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* Args: String.
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* Returns: Integer.
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*=======================================================================*/
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/* Convert a two-char hexadecimal expression to an integer */
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int
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h2toi (char *s) {
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int tmp;
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int ch;
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tmp = tolower(*s++);
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if (tmp>'9') tmp-=('a'-10);
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else tmp-='0';
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ch=16*tmp;
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tmp = tolower(*s++);
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if (tmp>'9') tmp-=('a'-10);
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else tmp-='0';
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ch+=tmp;
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return ch;
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}
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