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/*
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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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    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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    (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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    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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    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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        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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        show both the nature of and the organisation responsible
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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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        party shall be deemed to be that party's acceptance of
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        these conditions;
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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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        no liability whatsoever in relation to any use to which
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        it may be put.
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*/
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#include "config.h"
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#include "errors.h"
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#include "error.h"
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#include "lex.h"
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#include "process.h"
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#include "syntax.h"
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/*
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    MAIN ROUTINE
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    This is the main routine.  It processes the command-line options,
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    reads the input file, and writes the output files.
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*/
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int main
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    PROTO_N ( ( argc, argv ) )
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    PROTO_T ( int argc X char **argv )
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{
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    int a ;
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    int act = 0 ;
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    int too_many = 0 ;
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    char *input = NULL ;
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    char *output = NULL ;
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    /* Process arguments */
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    set_progname ( argv [0], "1.1" ) ;
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    for ( a = 1 ; a < argc ; a++ ) {
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	char *arg = argv [a] ;
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	if ( arg [0] == '-' && arg [1] ) {
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	    int known = 0 ;
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	    switch ( arg [1] ) {
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		case 'd' : {
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		    if ( arg [2] ) break ;
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		    act = 1 ;
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		    known = 1 ;
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		    break ;
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		}
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		case 'n' : {
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		    if ( arg [2] ) break ;
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		    act = 2 ;
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		    known = 1 ;
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		    break ;
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		}
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		case 'u' : {
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		    if ( arg [2] ) break ;
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		    act = 3 ;
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		    known = 1 ;
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		    break ;
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		}
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		case 'v' : {
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		    if ( arg [2] ) break ;
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		    report_version () ;
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		    known = 1 ;
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		    break ;
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		}
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	    }
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	    if ( !known ) {
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		error ( ERROR_WARNING, "Unknown option, '%s'", arg ) ;
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	    }
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	} else {
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	    if ( input == NULL ) {
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		input = arg ;
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	    } else if ( output == NULL ) {
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		output = arg ;
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	    } else {
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		too_many = 1 ;
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	    }
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	}
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    }
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    /* Check arguments */
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    if ( too_many ) error ( ERROR_WARNING, "Too many arguments" ) ;
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    /* Process the input */
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    process_file ( input ) ;
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    output_all ( output, act ) ;
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    return ( exit_status ) ;
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}