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%TITLE 'BADKEY - test for bad key'
MODULE BADKEY (				! Test for bad key
		IDENT = '3-004'			! File: BADKEY.BLI Edit: CJG3004
		) =
BEGIN
!COPYRIGHT (c) DIGITAL EQUIPMENT CORPORATION 1981, 1988.  ALL RIGHTS RESERVED.
!
!THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND COPIED ONLY
!IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE AND WITH THE INCLUSION OF 
!THE ABOVE COPYRIGHT NOTICE.  THIS SOFTWARE OR ANY OTHER COPIES THEREOF MAY 
!NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE TO ANY OTHER PERSON.  NO TITLE
!TO AND OWNERSHIP OF THE SOFTWARE IS HEREBY TRANSFERRED.
!
!THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE AND 
!SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT CORPORATION.
!
!DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS 
!SOFTWARE ON EQUIPMENT THAT IS NOT SUPPLIED BY DIGITAL.
!
!
!++
! FACILITY:	EDT -- The DEC Standard Editor
!
! ABSTRACT:
!
!	Test for a bad key.
!
! ENVIRONMENT:	Runs at any access mode - AST reentrant
!
! AUTHOR: Bob Kushlis, CREATION DATE: 6-AUG-1979
!
! MODIFIED BY:
!
! 1-001	- Original.  DJS 18-FEB-1981.  This module was created by
!	extracting routine EDT$$TST_BADK  from module EDTCTR.
! 1-002	- Regularize headers and fix file name.  JBS 04-Mar-1981
! 1-003	- Change range check, for new implementation of defined keys.
!	   JBS 12-Aug-1982
! 1-004	- Don't allow GOLD digit.  JBS 16-Aug-1982
! 1-005	- Add conditional for VT220 support.  JBS 11-Feb-1983
!
! 3-001 - Update for Tops20.  GB 26-Apr-1983
! 3-002 - Fix non-VT220 test for GOLD digit. CJG 11-Jul-1983
! 3-003 - Remove VT220 conditional to speed up code. CJG 25-Nov-1983
! 3-004 - Modify ASSERT macro to include error code. CJG 30-Jan-1984
!--

%SBTTL 'Declarations'
!
! TABLE OF CONTENTS:
!

REQUIRE 'EDTSRC:TRAROUNAM';

FORWARD ROUTINE
    EDT$$TST_BADK;

!
! INCLUDE FILES:
!

REQUIRE 'EDTSRC:EDTREQ';

LIBRARY 'EDTSRC:KEYPADDEF';

LIBRARY 'EDTSRC:TRANSLATE';

!
! MACROS:
!
!	NONE
!
! EQUATED SYMBOLS:
!
!	NONE
!
! OWN STORAGE:
!
!	NONE
!
! EXTERNAL REFERENCES:
!
!	In the routine

%SBTTL 'EDT$$TST_BADK  - test for bad key'

GLOBAL ROUTINE EDT$$TST_BADK (			! Test for bad key
    KEY						! the key to test
    ) =

!++
! FUNCTIONAL DESCRIPTION:
!
!	Test for a bad key.
!
! FORMAL PARAMETERS:
!
!  KEY			The key to test
!
! IMPLICIT INPUTS:
!
!	NONE
!
! IMPLICIT OUTPUTS:
!
!	NONE
!
! ROUTINE VALUE
!
!	1 = key is bad, 0 = key is good
!
! SIDE EFFECTS:
!
!	NONE
!
!--

    BEGIN

    EXTERNAL
	CHAR_INFO : BLOCKVECTOR [256, 1];	! Information about characters


    ASSERT (1, .KEY LEQ K_KEY_MAX);

    IF ((.KEY LSS K_KPAD_BASE) AND (.KEY NEQ ASC_K_DEL) AND (.KEY GEQ ASC_K_SP)) THEN RETURN (1);

    IF ((.KEY GEQ K_GOLD_BASE) AND (.KEY LSS K_GOLD_BASE + 256))
    THEN
	BEGIN

	IF .CHAR_INFO [.KEY - K_GOLD_BASE, CI_DIG] THEN RETURN (1);

	END;

    RETURN (0);
    END;					! of routine EDT$$TST_BADK

!<BLF/PAGE>

END						! of module EDT$BADKEY

ELUDOM