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 %TITLE 'CHMSAVLIN - save a line'
MODULE CHMSAVLIN (				! Save a line
		IDENT = '1-002'			! File: CHMSAVLIN.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 saves a line in the auxiliary buffer.
!
! 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$$SAV_LN  from module CHANGE.BLI.
! 1-002	- Regularize headers.  JBS 03-Mar-1981
!--

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

REQUIRE 'EDTSRC:TRAROUNAM';

FORWARD ROUTINE
    EDT$$SAV_LN : NOVALUE;			! Save a line in the auxiliary buffer

!
! INCLUDE FILES:
!

REQUIRE 'EDTSRC:EDTREQ';

!
! MACROS:
!
!	NONE
!
! EQUATED SYMBOLS:
!
!	NONE
!
! OWN STORAGE:
!
!	NONE
!
! EXTERNAL REFERENCES:
!
!	In the routine
%SBTTL 'EDT$$SAV_LN  - save a line'

GLOBAL ROUTINE EDT$$SAV_LN (			! Save a line
	LINE, 					! Pointer to the line to save
	LEN					! Length of that line
    ) : NOVALUE =

!++
! FUNCTIONAL DESCRIPTION:
!
!	This routine saves a line to the auxiliary buffer if there is one.
!	The routine is called by the deletes, and the aux buffer will be set
!	if it is really a cut command rather than a delete.
!
! FORMAL PARAMETERS:
!
!  LINE			Address of the line to save
!
!  LEN			Length of the line to save
!
! IMPLICIT INPUTS:
!
!	ALT_BUF
!
! IMPLICIT OUTPUTS:
!
!	NONE
!
! ROUTINE VALUE:
!
!	NONE
!
! SIDE EFFECTS:
!
!	NONE
!
!--

    BEGIN

    EXTERNAL ROUTINE
	EDT$$INS_LN,				! Insert a line into buffer
	EDT$$RD_CURLN;				! Get the current line

    EXTERNAL
	ALT_BUF : REF TBCB_BLOCK,	! Alternate buffer used for cut/paste.
	CUR_BUF : REF TBCB_BLOCK;	! The current buffer tbcb

    LOCAL
	SAVE_TBCB;

!+
! See if there is an aux buffer.
!-

    IF (.ALT_BUF EQL 0) THEN RETURN;

!+
! Switch to the aux buffer.
!-
    SAVE_TBCB = .CUR_BUF;
    CUR_BUF = .ALT_BUF;
!+
! Read the current line.
!-
    EDT$$RD_CURLN ();
!+
! Insert the line to be saved.
!-
    EDT$$INS_LN (.LINE, .LEN);
!+
! And switch back to the main buffer.
!-
    CUR_BUF = .SAVE_TBCB;
    EDT$$RD_CURLN ();
    END;


END
ELUDOM