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 %TITLE 'CHMINIT - change mode initialize'
MODULE CHMINIT (				! Change mode initialize
		IDENT = '3-001'			! File: CHMINIT.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 performs initialization when change mode
!	is entered.
!
! 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$$INIT_CHM  from module CHANGE.BLI.
! 1-002	- Regularize headers.  JBS 02-Mar-1981
! 1-003 - Revise Typeahead logic.  JBS 02-Sep-1983
!
! 3-001 - Add updates from V3 source kit.  GB 27-Apr-1983
!--

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

REQUIRE 'EDTSRC:TRAROUNAM';

FORWARD ROUTINE
    EDT$$INIT_CHM : NOVALUE;			! Initialization on entering change mode

!
! INCLUDE FILES:
!

REQUIRE 'EDTSRC:EDTREQ';

!
! MACROS:
!
!	NONE
!
! EQUATED SYMBOLS:
!
!	NONE
!
! OWN STORAGE:
!
!	NONE
!
! EXTERNAL REFERENCES:
!
!	In the routine
%SBTTL 'EDT$$INIT_CHM  - change mode initialize'

GLOBAL ROUTINE EDT$$INIT_CHM 			! Change mode initialize
    : NOVALUE =

!++
! FUNCTIONAL DESCRIPTION:
!
!	This is the initialization routine called when change mode is entered.
!
!	The following are done:
!
!	The current line is fetched into the line buffer and the cursor pointer
!	is initialized.
!
!	The exit flag is cleared.
!
!	The vertical flag is cleared.
!
!	The type ahead counter is cleared.
!
! FORMAL PARAMETERS:
!
!	NONE
!
! IMPLICIT INPUTS:
!
!	CUR_BUF
!	LN_BUF
!
! IMPLICIT OUTPUTS:
!
!	EXI
!	VERT
!	RDAHED
!	LN_PTR
!
! ROUTINE VALUE:
!
!	NONE
!
! SIDE EFFECTS:
!
!	NONE
!
!--

    BEGIN

    EXTERNAL ROUTINE
	EDT$$GET_TXTLN;			! Get current line in line buffer

    EXTERNAL
	EXI,				! Change mode has been exited.
	VERT,				! Last entity was VERT flag.
	CUR_BUF : REF TBCB_BLOCK,	! The current buffer tbcb
	RDAHED,				! Read ahead counter
	LN_BUF,				! Current line buffer
	LN_PTR;				! Current character pointer

    EDT$$GET_TXTLN ();
    LN_PTR = CH$PTR (LN_BUF, .CUR_BUF [TBCB_CHAR_POS], BYTE_SIZE);
    EXI = 0;
    VERT = 0;
    RDAHED = 0;
    END;


END
ELUDOM