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/*

    		 Crown Copyright (c) 1996

    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.

*/

/*

			    VERSION INFORMATION

			    ===================

--------------------------------------------------------------------------

$Header: /u/g/release/CVSROOT/Source/src/installers/680x0/common/spec_tok.c,v 1.1.1.1 1998/01/17 15:55:50 release Exp $

--------------------------------------------------------------------------

$Log: spec_tok.c,v $

 * Revision 1.1.1.1  1998/01/17  15:55:50  release

 * First version to be checked into rolling release.

 *

Revision 1.1.1.1  1997/10/13 12:42:58  ma

First version.

Revision 1.1.1.1  1997/03/14 07:50:18  ma

Imported from DRA

 * Revision 1.1.1.1  1996/09/20  10:56:58  john

 *

 * Revision 1.1.1.1  1996/03/26  15:45:17  john

 *

 * Revision 1.1  94/06/29  14:25:55  14:25:55  ra (Robert Andrews)

 * Initial revision

 *

--------------------------------------------------------------------------

*/

#include "config.h"

#include "common_types.h"

#include "basicread.h"

#include "tags.h"

#include "exp.h"

#include "expmacs.h"

#include "diag_fns.h"

#include "flags.h"

#include "check.h"

#include "me_fns.h"

#include "externs.h"

#include "installglob.h"

#include "messages_r.h"

#include "main_reads.h"

#include "install_fns.h"

#include "c_arith_type.h"

#include "natmacs.h"

#include "spec_tok.h"

/*

    INTERCEPT SPECIAL TOKENS

*/

tokval special_token

    PROTO_N ( ( t, pars, sortcode, done ) )

    PROTO_T ( token t X bitstream pars X int sortcode X int *done )

{

    tokval tkv ;

    UNUSED ( sortcode ) ;

    if ( t->tok_name == NULL ) {

	/* call looks at done to see if result is meaningful */

	SET ( tkv ) ;

	return ( tkv ) ;

    }

    /* alloca */

    if ( !strcmp ( t->tok_name, "~alloca" ) ) {

	exp arg1 ;

	place old_place ;

	old_place = keep_place () ;

	set_place ( pars ) ;

	arg1 = hold_check ( d_exp () ) ;

	set_place ( old_place ) ;

	tkv.tk_exp = hold_check ( me_u3 ( f_pointer ( long_to_al ( 8 ) ),

				  arg1, alloca_tag ) ) ;

	*done = 1 ;

	has_alloca = 1 ;

	return ( tkv ) ;

    }

    /* diagnostic tokens */

    if ( !strcmp ( t->tok_name, "~exp_to_source" ) ||

	 !strcmp ( t->tok_name, "~diag_id_scope" ) ||

	 !strcmp ( t->tok_name, "~diag_type_scope" ) ||

	 !strcmp ( t->tok_name, "~diag_tag_scope" ) ) {

	place old_place ;

	old_place = keep_place () ;

	set_place ( pars ) ;

	tkv.tk_exp = hold_check ( d_exp () ) ;

	*done = 1 ;

	if ( !diagnose ) {

	    set_place ( old_place ) ;

	    return ( tkv ) ;

	}

	if ( !strcmp ( t->tok_name, "~exp_to_source" ) ) {

	    exp r ;

	    diag_info *di = read_exp_to_source () ;

	    crt_lno = natint ( di->data.source.end.line_no ) ;

	    crt_charno = natint ( di->data.source.end.char_off ) ;

	    crt_flnm = di->data.source.beg.file->file.ints.chars ;

	    r = getexp ( sh ( tkv.tk_exp ), nilexp, 0, tkv.tk_exp, nilexp,

			 1, 0, diagnose_tag ) ;

	    setfather ( r, tkv.tk_exp ) ;

	    dno ( r ) = di ;

	    tkv.tk_exp = r ;

	    set_place ( old_place ) ;

	    return ( tkv ) ;

	}

	if ( !strcmp ( t->tok_name, "~diag_id_scope" ) ) {

	    exp r ;

	    diag_info *di = read_diag_id_scope () ;

	    r = getexp ( sh ( tkv.tk_exp ), nilexp, 0, tkv.tk_exp, nilexp,

			 2, 0, diagnose_tag ) ;

	    setfather ( r, tkv.tk_exp ) ;

	    dno ( r ) = di ;

	    tkv.tk_exp = r ;

	    set_place ( old_place ) ;

	    return ( tkv ) ;

	}

	if ( !strcmp ( t->tok_name, "~diag_type_scope" ) ) {

	    exp r ;

	    diag_info *di = read_diag_type_scope () ;

	    r = getexp ( sh ( tkv.tk_exp ), nilexp, 0, tkv.tk_exp, nilexp,

			 3, 0, diagnose_tag ) ;

	    setfather ( r, tkv.tk_exp ) ;

	    dno ( r ) = di ;

	    tkv.tk_exp = r ;

	    set_place ( old_place ) ;

	    return ( tkv ) ;

	}

	if ( !strcmp ( t->tok_name, "~diag_tag_scope" ) ) {

	    exp r ;

	    diag_info *di = read_diag_tag_scope () ;

	    r = getexp ( sh ( tkv.tk_exp ), nilexp, 0, tkv.tk_exp, nilexp,

			 4, 0, diagnose_tag ) ;

	    setfather ( r, tkv.tk_exp ) ;

	    dno ( r ) = di ;

	    tkv.tk_exp = r ;

	    set_place ( old_place ) ;

	    return ( tkv ) ;

	}

    }

    /* call looks at done to see if result is meaningful */

    SET ( tkv ) ;

    return ( tkv ) ;

}

/*

    CHECK FOR MACHINE DEPENDENT TOKENS

*/

int machine_toks

    PROTO_N ( ( s ) )

    PROTO_T ( char *s )

{

    return ( 0 ) ;

}