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/*
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 * Copyright (c) 2002-2005 The TenDRA Project <http://www.tendra.org/>.
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions are met:
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 *
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 * 1. Redistributions of source code must retain the above copyright notice,
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 *    this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
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 *    this list of conditions and the following disclaimer in the documentation
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 *    and/or other materials provided with the distribution.
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 * 3. Neither the name of The TenDRA Project nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific, prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
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 * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
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 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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 * EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 *
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 * $Id$
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 */
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/*
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/*
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    		 Crown Copyright (c) 1997
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    		 Crown Copyright (c) 1997
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    This TenDRA(r) Computer Program is subject to Copyright
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    This TenDRA(r) Computer Program is subject to Copyright
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    owned by the United Kingdom Secretary of State for Defence
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    owned by the United Kingdom Secretary of State for Defence
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    acting through the Defence Evaluation and Research Agency
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    acting through the Defence Evaluation and Research Agency
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    (DERA).  It is made available to Recipients with a
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    (DERA).  It is made available to Recipients with a
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    royalty-free licence for its use, reproduction, transfer
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    royalty-free licence for its use, reproduction, transfer
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    to other parties and amendment for any purpose not excluding
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    to other parties and amendment for any purpose not excluding
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    product development provided that any such use et cetera
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    product development provided that any such use et cetera
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    shall be deemed to be acceptance of the following conditions:-
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    shall be deemed to be acceptance of the following conditions:-
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        (1) Its Recipients shall ensure that this Notice is
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        (1) Its Recipients shall ensure that this Notice is
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        reproduced upon any copies or amended versions of it;
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        reproduced upon any copies or amended versions of it;
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        (2) Any amended version of it shall be clearly marked to
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        (2) Any amended version of it shall be clearly marked to
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        show both the nature of and the organisation responsible
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        show both the nature of and the organisation responsible
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        for the relevant amendment or amendments;
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        for the relevant amendment or amendments;
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        (3) Its onward transfer from a recipient to another
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        (3) Its onward transfer from a recipient to another
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        party shall be deemed to be that party's acceptance of
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        party shall be deemed to be that party's acceptance of
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        these conditions;
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        these conditions;
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        (4) DERA gives no warranty or assurance as to its
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        (4) DERA gives no warranty or assurance as to its
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        quality or suitability for any purpose and DERA accepts
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        quality or suitability for any purpose and DERA accepts
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        no liability whatsoever in relation to any use to which
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        no liability whatsoever in relation to any use to which
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        it may be put.
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        it may be put.
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*/
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*/
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#include "config.h"
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#include "config.h"
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#include "types.h"
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#include "types.h"
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#include "fetch.h"
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#include "fetch.h"
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#include "file.h"
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#include "read_types.h"
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#include "read_types.h"
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#include "analyser.h"
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#include "analyser.h"
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#include "utility.h"
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#include "utility.h"
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    LIST OF DIRECTORIES
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    LIST OF DIRECTORIES
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    This is the list of all directories to be searched for included files.
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    This is the list of all directories to be searched for included files.
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*/
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*/
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static directory *search_path = null ;
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static directory *search_path = null;
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/*
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/*
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    INPUT FILE
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    INPUT FILE
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    The current input file, together with its name.
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    The current input file, together with its name.
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*/
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*/
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FILE *input ;
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FILE *input;
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char *input_file = null ;
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char *input_file = null;
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/*
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/*
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    OPEN INPUT FILE
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    OPEN INPUT FILE
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    This routine opens the file nm.  If search is true it will search
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    This routine opens the file nm.  If search is true it will search
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    for it along search_path.
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    for it along search_path.
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*/
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*/
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void open_input
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void
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    PROTO_N ( ( nm, search ) )
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    PROTO_T ( char *nm X int search )
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open_input(char *nm, int search)
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{
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{
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    input = fopen ( nm, ( text_input ? "r" : "rb" ) ) ;
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    input = fopen(nm,(text_input ? "r" : "rb"));
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    if ( search && input == null ) {
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    if (search && input == null) {
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	directory *d = search_path ;
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	directory *d = search_path;
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	while ( input == null && d ) {
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	while (input == null && d) {
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	    char buff [1000] ;
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	    char buff[1000];
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	    IGNORE sprintf ( buff, "%s/%s", d->dirname, nm ) ;
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	    IGNORE sprintf(buff, "%s/%s", d->dirname, nm);
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	    input = fopen ( buff, ( text_input ? "r" : "rb" ) ) ;
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	    input = fopen(buff,(text_input ? "r" : "rb"));
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	    d = d->next ;
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	    d = d->next;
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	}
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	}
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    }
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    }
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    if ( input == null ) fatal_error ( "Can't open input file, %s", nm ) ;
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    if (input == null)fatal_error("Can't open input file, %s", nm);
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    input_file = nm ;
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    input_file = nm;
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    bits_in_buff = 0 ;
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    bits_in_buff = 0;
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    bytes_read = 0 ;
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    bytes_read = 0;
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    crt_line_no = 1 ;
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    crt_line_no = 1;
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    line_no = 1 ;
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    line_no = 1;
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    looked_ahead = 0 ;
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    looked_ahead = 0;
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    return ;
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    return;
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}
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}
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/*
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/*
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    ADD A DIRECTORY TO THE SEARCH PATH
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    ADD A DIRECTORY TO THE SEARCH PATH
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    The directory nm is added to search_path.
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    The directory nm is added to search_path.
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*/
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*/
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void add_directory
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void
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    PROTO_N ( ( nm ) )
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    PROTO_T ( char *nm )
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add_directory(char *nm)
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{
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{
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    directory *d = alloc_nof ( directory, 1 ) ;
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    directory *d = alloc_nof(directory, 1);
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    d->dirname = nm ;
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    d->dirname = nm;
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    d->next = null ;
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    d->next = null;
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    if ( search_path == null ) {
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    if (search_path == null) {
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	search_path = d ;
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	search_path = d;
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    } else {
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    } else {
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	directory *p = search_path ;
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	directory *p = search_path;
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	while ( p->next ) p = p->next ;
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	while (p->next)p = p->next;
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	p->next = d ;
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	p->next = d;
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    }
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    }
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    return ;
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    return;
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}
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}
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/*
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/*
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    OUTPUT FILE
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    OUTPUT FILE
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    OPEN OUTPUT FILE
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    OPEN OUTPUT FILE
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    The output file nm is opened.
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    The output file nm is opened.
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*/
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*/
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void open_output
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void
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    PROTO_N ( ( nm ) )
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    PROTO_T ( char *nm )
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open_output(char *nm)
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{
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{
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    static char *opened = null ;
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    static char *opened = null;
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    if ( opened ) {
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    if (opened) {
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	warning ( "Multiple output files given, using %s", opened ) ;
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	warning("Multiple output files given, using %s", opened);
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	return ;
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	return;
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    }
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    }
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    output = fopen ( nm, ( text_output ? "w" : "wb" ) ) ;
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    output = fopen(nm,(text_output ? "w" : "wb"));
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    if ( output == null ) fatal_error ( "Can't open output file, %s", nm ) ;
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    if (output == null)fatal_error("Can't open output file, %s", nm);
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    opened = nm ;
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    opened = nm;
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    return ;
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    return;
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}
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}