%TITLE 'SCRRESET - reset the terminal'
MODULE SCRRESET ( ! Reset the terminal
IDENT = '1-006' ! File: SCRRESET.BLI Edit: JBS1006
) =
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 resets the terminal attributes to their state
! before change mode was entered.
!
! ENVIRONMENT: Runs at any access mode - AST reentrant
!
! AUTHOR: Bob Kushlis, CREATION DATE: September 8, 1979
!
! MODIFIED BY:
!
! 1-001 - Original. DJS 12-Feb-1981. This module was created by
! extracting the routine EDT$$SC_RESET from module SCREEN.
! 1-002 - Regularized headers. JBS 24-Feb-1981
! 1-003 - Fix module name. JBS 13-Mar-1981
! 1-004 - Revise autorepeat logic. JBS 30-Jan-1982
! 1-005 - Change if test for nokeypad command. SMB 23-Feb-1982
! 1-006 - Change test back and add test for terminal type, moved here
! from EDT$CHMCHANGE. JBS 22-Apr-1982
!--
%SBTTL 'Declarations'
!
! TABLE OF CONTENTS:
!
REQUIRE 'EDTSRC:TRAROUNAM';
FORWARD ROUTINE
EDT$$SC_RESET : NOVALUE;
!
! INCLUDE FILES:
!
REQUIRE 'EDTSRC:EDTREQ';
!
! MACROS:
!
! NONE
!
! EQUATED SYMBOLS:
!
BIND
NOKEYPAD_MODE = UPLIT (%STRING (%CHAR (ASC_K_ESC), '>'));
LITERAL
NOKEYPAD_MODE_LEN = 2;
!
! OWN STORAGE:
!
! NONE
!
! EXTERNAL REFERENCES:
!
! In the routine
%SBTTL 'EDT$$SC_RESET - reset the terminal'
GLOBAL ROUTINE EDT$$SC_RESET ! Reset the terminal
: NOVALUE =
!++
! FUNCTIONAL DESCRIPTION:
!
! This routine resets all the funny things we did to the terminal when
! entering screen mode.
!
! FORMAL PARAMETERS:
!
! NONE
!
! IMPLICIT INPUTS:
!
! TI_TYPE
! KPAD
!
! IMPLICIT OUTPUTS:
!
! NONE
!
! ROUTINE VALUE:
!
! NONE
!
! SIDE EFFECTS:
!
! Puts the cursor at the bottom of the screen, and
! leaves change mode.
!
!--
BEGIN
EXTERNAL ROUTINE
EDT$$FMT_LIT,
EDT$$OUT_FMTBUF,
EDT$$TI_LEAVECHM,
EDT$$SC_POSABS : NOVALUE,
EDT$$SC_NONREVID : NOVALUE,
EDT$$SC_FULLSCLL : NOVALUE,
EDT$$TI_ENBLAUTREP : NOVALUE; ! Enable or disable autorepeat
EXTERNAL
TI_TYP, ! The type of terminal we have
KPAD; ! Keypad activated?
IF ((.TI_TYP EQL TERM_VT52) OR (.TI_TYP EQL TERM_VT100))
THEN
BEGIN
IF .KPAD THEN EDT$$FMT_LIT (CH$PTR (NOKEYPAD_MODE), NOKEYPAD_MODE_LEN);
EDT$$SC_FULLSCLL ();
EDT$$SC_NONREVID ();
EDT$$TI_ENBLAUTREP (1);
!+
! Put cursor at bottom of screen.
!-
EDT$$SC_POSABS (23, 0);
EDT$$FMT_LIT (CH$PTR (UPLIT (%STRING (%CHAR (ASC_K_LF)))), 1);
EDT$$OUT_FMTBUF ();
!+
! Inform the terminal I/O routines that we are leaving screen mode.
!-
EDT$$TI_LEAVECHM ();
END;
END; ! of routine EDT$$SC_RESET
END
ELUDOM