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Trailing-Edge - PDP-10 Archives - bb-r775e-bm_tops20_ks_upd_5 - sources/edt/chmrepos.bli
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 %TITLE 'CHMREPOS - reposition to a buffer'
MODULE CHMREPOS (				! Reposition to a buffer
		IDENT = '3-001'			! File: CHMREPOS.BLI Edit: GB3001
		) =
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 repositions to a buffer position previously
!	saved in a position block.
!
! ENVIRONMENT:	Runs at any access mode - AST reentrant
!
! AUTHOR: Bob Kushlis, CREATION DATE: Unknown
!
! MODIFIED BY:
!
! 1-001	- Original.  DJS 04-Feb-1981.  This module was created by
!	extracting the routine EDT$$RPOS  from module CHANGE.BLI.
! 1-002	- Regularize headers.  JBS 27-Feb-1981
! 1-003	- Fix the module name.  JBS 03-Mar-1981
! 1-004	- Remove EDT$$G_LN_NO for new screen update logic.  JBS 29-Sep-1982
! 3-001 - Add updates from V3 source kit.  GB 27-Apr-1983
!--

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

REQUIRE 'EDTSRC:TRAROUNAM';

FORWARD ROUTINE
    EDT$$RPOS : NOVALUE;			! Restore the saved buffer position

!
! INCLUDE FILES:
!

REQUIRE 'EDTSRC:EDTREQ';

!
! MACROS:
!
!	NONE
!
! EQUATED SYMBOLS:
!
!	NONE
!
! OWN STORAGE:
!
!	NONE
!
! EXTERNAL REFERENCES:
!
!	In the routine
%TITLE 'EDT$$RPOS  - reposition to a buffer'

GLOBAL ROUTINE EDT$$RPOS (			! Reposition to a buffer
	POS					! Pointer to position block
    ) : NOVALUE =

!++
! FUNCTIONAL DESCRIPTION:
!
!	This routine re-positions to the buffer postion saved by EDT$$SAV_BUFPOS .
!
! FORMAL PARAMETERS:
!
!  POS			Pointer to the saved position block
!
! IMPLICIT INPUTS:
!
!	CUR_BUF
!
! IMPLICIT OUTPUTS:
!
!	CUR_BUF
!
! ROUTINE VALUE:
!
!	NONE
!
! SIDE EFFECTS:
!
!	NONE
!
!--

    BEGIN

    MAP
	POS : REF POS_BLOCK;

    EXTERNAL ROUTINE
	EDT$$RPL_CHGDLN,			! Declare current line as changed
	EDT$$GET_TXTLN;				! Get current line in line buffer

    EXTERNAL
	CUR_BUF : REF TBCB_BLOCK;	! The current buffer tbcb

!+
! Update current line if necessary.
!-
    EDT$$RPL_CHGDLN ();
!+
! Reposition the text buffer.
!-
    EDT$$CPY_MEM (POS_SIZE, .POS, .CUR_BUF);
!+
! Get the new line in the buffer.
!-
    EDT$$GET_TXTLN ();

    END;


END
ELUDOM