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 %TITLE 'SCRRELPOS - compare current position to specified position'
MODULE SCRRELPOS (				! Compare current position to specified position
		IDENT = '1-002'			! File: SCRRELPOS.BLI Edit: JBS1002
		) =
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:
!
!	This module compares the current position to a specified position.
!
! ENVIRONMENT:	Runs at any access mode - AST reentrant
!
! AUTHOR: Bob Kushlis, CREATION DATE: September 8, 1979
!
! MODIFIED BY:
!
! 1-001	- Original.  DJS 12-Feb-1981.  This module was created by
!	extracting the routine REL_POS from module SCREEN.
! 1-002	- Regularize headers.  JBS 13-Mar-1981
!--

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

REQUIRE 'EDTSRC:TRAROUNAM';

FORWARD ROUTINE
    EDT$$SC_CMPPOS;

!
! INCLUDE FILES:
!

REQUIRE 'EDTSRC:EDTREQ';

!
! MACROS:
!
!	NONE
!
! EQUATED SYMBOLS:
!
!	NONE
!
! OWN STORAGE:
!
!	NONE
!
! EXTERNAL REFERENCES:
!
!	In the routine
%SBTTL 'EDT$$SC_CMPPOS  - compare current position to selected position'

GLOBAL ROUTINE EDT$$SC_CMPPOS (			! Compare current position to selected position
	CP, 					! Current column
	TESTL, 					! Model line
	TESTP					! Model column
    ) =

!++
! FUNCTIONAL DESCRIPTION:
!
!	This routine compares the current position in the buffer to a
!	specified position and returns -1, or 1 depending on their relation.
!
! FORMAL PARAMETERS:
!
!  CP			The current position, assumed to be on the current line
!
!  TESTL		The model line
!
!  TESTP		The model position, on the model line
!
! IMPLICIT INPUTS:
!
!	CUR_BUF
!
! IMPLICIT OUTPUTS:
!
!	NONE
!
! ROUTINE VALUE:
!
!	-1 = model position is before the current position
!	+1 = model position is on or after the current position
!
! SIDE EFFECTS:
!
!	NONE
!
!--

    BEGIN

    EXTERNAL ROUTINE
	EDT$$CMP_LNO;

    EXTERNAL
	CUR_BUF : REF TBCB_BLOCK;	! The current buffer tbcb.

    LOCAL
	COMP;

    COMP = EDT$$CMP_LNO (CUR_BUF [TBCB_CUR_LIN], .TESTL);

    IF (.COMP EQL 0)
    THEN

	IF CH$PTR_LSS (.CP, .TESTP) THEN RETURN (-1) ELSE RETURN (1)

    ELSE
	RETURN (.COMP);

    END;


END
ELUDOM