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 %TITLE 'CHMNEWLEN - update the length of the current line'
MODULE CHMNEWLEN (				! Update the length of the current line
		IDENT = '3-001'			! File: CHMNEWLEN.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 updates the length of the current line.
!
! 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$$UPD_LNLEN  from module CHANGE.BLI.
! 1-002	- Regularize headers.  JBS 03-Mar-1981
! 1-003	- New screen update logic.  JBS 13-Sep-1982
!--

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

REQUIRE 'EDTSRC:TRAROUNAM';

FORWARD ROUTINE
    EDT$$UPD_LNLEN : NOVALUE;			! Update the length of the current line

!
! INCLUDE FILES:
!

REQUIRE 'EDTSRC:EDTREQ';

!
! MACROS:
!
!	NONE
!
! EQUATED SYMBOLS:
!
!	NONE
!
! OWN STORAGE:
!
!	NONE
!
! EXTERNAL REFERENCES:
!
!	In the routine
%SBTTL 'EDT$$UPD_LNLEN  - update the length of the current line'

GLOBAL ROUTINE EDT$$UPD_LNLEN (			! Update the length of the current line
	L					! Change in length (+ or -)
    ) : NOVALUE =

!++
! FUNCTIONAL DESCRIPTION:
!
!	This routine is called when the current line changes in length.  It updates
!	the LN_END  and LN_LEN  variables and insures that the
!	last character of the line is a carriage return
!
! FORMAL PARAMETERS:
!
!  L 			the change in the length of the line.
!
! IMPLICIT INPUTS:
!
!	LN_LEN
!	LN_BUF
!	LN_END
!
! IMPLICIT OUTPUTS:
!
!	LN_LEN
!	LN_END
!
! ROUTINE VALUE:
!
!	NONE
!
! SIDE EFFECTS:
!
!	NONE
!
!--

    BEGIN

    EXTERNAL
	LN_BUF,				! Current line buffer
	LN_END,				! End of current line pointer
	LN_LEN;				! Length of current line

    LN_LEN = .LN_LEN + .L;
    LN_END = CH$PTR (LN_BUF, .LN_LEN, BYTE_SIZE);
    CH$WCHAR (ASC_K_CR, .LN_END);
    END;


END
ELUDOM