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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) 1981, 1985 BY
!	      DIGITAL EQUIPMENT CORPORATION, MAYNARD, MASS.
!		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 WHICH 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