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 %TITLE 'CHMINSMOD - nokeypad insert mode'
MODULE CHMINSMOD (				! Nokeypad insert mode
		IDENT = '3-002'			! File: CHMINSMOD.BLI Edit: CJG3002
		) =
BEGIN
!COPYRIGHT (c) DIGITAL EQUIPMENT CORPORATION 1981, 1988.  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 THAT IS NOT SUPPLIED BY DIGITAL.
!
!
!++
! FACILITY:	EDT -- The DEC Standard Editor
!
! ABSTRACT:
!
!	This module implements nokeypad insert mode.
!
! 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 routine INSERT_MODE from module CHANGE.BLI.
! 1-002	- Regularize headers.  JBS 03-Mar-1981
! 1-003	- Add return values.  JBS 02-Oct-1981
! 1-004	- Don't allow a bare ESC to terminate a multi-line insert.  JBS 17-Aug-1982
! 1-005 - Set the message flag so "I" stays on screen.  SMB 17-Aug-1982
! 1-006	- New screen update logic.  JBS 13-Sep-1982
! 1-007	- Change the call to screen update and add a LOAD entry point, so this module
!	   can be displaced by the screen update modules on the PDP-11.  JBS 25-Sep-1982
! 1-008	- Change the screen update call again, to reduce the overlay size on the PDP-11.  JBS 27-Sep-1982
! 1-009	- Add a parameter to EDT$$COMB_LN.  JBS 28-Dec-1982
! 3-001 - Add updates from V3 source kit.  GB 27-Apr-1983
! 3-002 - Fix nokeypad mode insert. CJG 6-Oct-1983
!--

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

REQUIRE 'EDTSRC:TRAROUNAM';

FORWARD ROUTINE
    EDT$$INS_MOD;				! Process no-keypad insertion

!
! INCLUDE FILES:
!

REQUIRE 'EDTSRC:EDTREQ';

!
! MACROS:
!
!	NONE
!
! EQUATED SYMBOLS:
!
!	NONE
!
! OWN STORAGE:
!
!	NONE
!
! EXTERNAL REFERENCES:
!
!	In the routine
%SBTTL 'EDT$$INS_MOD  - nokeypad insert mode'

GLOBAL ROUTINE EDT$$INS_MOD 			! Nokeypad insert mode
    =

!++
! FUNCTIONAL DESCRIPTION:
!
!	This routine implements the no-keypad insert mode.  Process insertions
!	and the delete character until a CTRL/Z is seen, then return.
!
! FORMAL PARAMETERS:
!
!	NONE
!
! IMPLICIT INPUTS:
!
!	KPAD
!	TI_TYP
!	LN_BUF
!	LN_PTR
!
! IMPLICIT OUTPUTS:
!
!	NONE
!
! ROUTINE VALUE:
!
!	1 = ok, 0 = end of journal file
!
! SIDE EFFECTS:
!
!	NONE
!
!--

    BEGIN

    EXTERNAL ROUTINE
	EDT$$DEL_CHS : NOVALUE,		! Delete part of the current line
	EDT$$INS_CHS,			! Insert a string of characters which may include carriage returns
	EDT$$COMB_LN : NOVALUE,		! Combine the current line with the one immediately above it
	EDT$$SC_UPD,			! Update the screen
	EDT$$STOP_WKINGMSG,		! Terminate working AST
	EDT$$TI_INPCH;			! Get a character of input

    EXTERNAL
	MSGFLG,				! Text to stay on screen
	KPAD,				! Keypad activated?
	TI_TYP,				! Terminal type.
	LN_BUF,				! Current line buffer
	LN_PTR;				! Current character pointer

    LOCAL
	C;

    IF ((.KPAD NEQ 0) OR (.TI_TYP EQL TERM_HCPY)) THEN RETURN (1);

    EDT$$STOP_WKINGMSG ();

    MSGFLG = 1;

    WHILE 1 DO
	BEGIN
	EDT$$SC_UPD ();

	IF (EDT$$TI_INPCH (C) EQL 0) THEN RETURN (0);

	IF (.C EQL ASC_K_CTRL_Z) THEN EXITLOOP;

	IF (.C EQL ASC_K_DEL)
	THEN

	    IF CH$PTR_EQL (.LN_PTR, CH$PTR (LN_BUF,, BYTE_SIZE))
	    THEN
		EDT$$COMB_LN (1)
	    ELSE
		EDT$$DEL_CHS (CH$PLUS (.LN_PTR, -1), .LN_PTR)

	ELSE
	    BEGIN
	    CH$WCHAR (.C, CH$PTR (C,, BYTE_SIZE));
	    EDT$$INS_CHS (CH$PTR (C,, BYTE_SIZE), 1);
	    END

	END;

    MSGFLG = 0;

    RETURN (1);
    END;


END
ELUDOM