/*
 * Copyright (c) 2002, The Tendra Project <http://www.ten15.org/>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice unmodified, this list of conditions, and the following
 *    disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *
 *    		 Crown Copyright (c) 1997
 *    
 *    This TenDRA(r) Computer Program is subject to Copyright
 *    owned by the United Kingdom Secretary of State for Defence
 *    acting through the Defence Evaluation and Research Agency
 *    (DERA).  It is made available to Recipients with a
 *    royalty-free licence for its use, reproduction, transfer
 *    to other parties and amendment for any purpose not excluding
 *    product development provided that any such use et cetera
 *    shall be deemed to be acceptance of the following conditions:-
 *    
 *        (1) Its Recipients shall ensure that this Notice is
 *        reproduced upon any copies or amended versions of it;
 *    
 *        (2) Any amended version of it shall be clearly marked to
 *        show both the nature of and the organisation responsible
 *        for the relevant amendment or amendments;
 *    
 *        (3) Its onward transfer from a recipient to another
 *        party shall be deemed to be that party's acceptance of
 *        these conditions;
 *    
 *        (4) DERA gives no warranty or assurance as to its
 *        quality or suitability for any purpose and DERA accepts
 *        no liability whatsoever in relation to any use to which
 *        it may be put.
 *
 * $TenDRA: tendra/src/installers/common/reader/basicread.h,v 1.8 2004/09/16 01:28:56 bp Exp $
 */


#ifndef basicrd_key
#define basicrd_key 1



extern char initreader(char *n);
/* start the input stream reading from the file called n */

extern void endreader(void);

extern unsigned long getcode(unsigned int n);
/* read n bits from the input stream */

extern int get_big_code(unsigned int n);
/* read construct encoding number (n bit pieces)
 *        from the input stream */

extern tdf_pos keep_place(void);
/* deliver the current place in the input stream */

extern void set_place(tdf_pos);
/* start reading from pl in the input stream */

extern void failer(char *s);
/* records the failure message s and sets good_trans to false */

extern int  small_dtdfint(void);


extern void to_boundary(void);
/* step the input stream on to the next byte boundary */

extern bitstream d_bitstream(void);
/* delivers a new place for the bitstream in the input stream and
 *        steps over it */

extern void start_bytestream(void);
/* records in bytestream_pickup the end of a bytestream */

extern bytestream d_bytestream(void);
/* returns bytestream_pickup */

extern void ignore_bytestream(void);
/* steps over a bytestream */

extern void end_bytestream(void);
/* resets the input stream from bytestream_pickup */

extern tdfstring d_tdfstring(void);
/* reads a tdfstring from the input stream */

extern tdfstring d_tdfident(void);
/* reads a tdfident from the input stream */

extern tdfbool d_tdfbool(void);
/* reads a tdfbool from the input stream */

extern tdfint d_tdfint(void);
/* reads a tdfint from the input stream */

extern int crt_lno;

extern char * crt_flnm;

extern int crt_charno;

extern struct tdf_stream *tdfr;


#endif
