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 %TITLE 'TISAVE - buffer a character for the journal file'
MODULE TISAVE (				! Buffer a character for the journal file
		IDENT = '3-003'			! File: TISAVE.BLI Edit: CJG3003
		) =
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:
!
!	Buffer a character for the journal file.
!
! ENVIRONMENT:	Runs at any access mode - AST reentrant
!
! AUTHOR: Bob Kushlis, CREATION DATE: June 9, 1979
!
! MODIFIED BY:
!
! 1-001	- Original.  DJS 18-FEB-1981.  This module was created by
!	extracting routine EDT$$TI_BUFCH  from module TINPUT.
! 1-002	- Regularize headers.  JBS 11-Mar-1981
! 1-003	- Change call to EDT$$TI_FLUSHJOUFI .  JBS 18-Jun-1981
! 3-001 - Modify operation of journal buffer for TOPS-20. CJG 15-Jun-1983
! 3-002 - Add EDT$$TI_BUFSTR to speed up journalling. CJG 15-Jun-1983
! 3-003 - Guard against bad length in TI_BUFSTR. CJG 8-Jul-1983
!--

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

REQUIRE 'EDTSRC:TRAROUNAM';

FORWARD ROUTINE
    EDT$$TI_BUFSTR : NOVALUE,
    EDT$$TI_BUFCH : NOVALUE;

!
! INCLUDE FILES:
!

REQUIRE 'EDTSRC:EDTREQ';

!
! MACROS:
!
!	NONE
!
! EQUATED SYMBOLS:
!
!	NONE
!
! OWN STORAGE:
!
!	NONE
!
! EXTERNAL REFERENCES:
!
!	In the routine
%SBTTL 'EDT$$TI_BUFCH  - buffer a character for the journal file'

GLOBAL ROUTINE EDT$$TI_BUFCH (			! Buffer a character for the journal file
	BUF					! Character to be buffered
    ) : NOVALUE =

!++
! FUNCTIONAL DESCRIPTION:
!
!	This routine saves a character for the journal file.  If the journal
!	output buffer is full, then it is written out, then the character
!	is placed in the buffer.
!
! FORMAL PARAMETERS:
!
!  BUF 			The character to be saved.
!
! IMPLICIT INPUTS:
!
!	TIN_OBUF
!	TIN_OBUFPOS
!
! IMPLICIT OUTPUTS:
!
!	TIN_OBUFPOS
!
! ROUTINE VALUE:
!
!	NONE
!
! SIDE EFFECTS:
!
!	May write a record on the journal file.
!
!--

    BEGIN

    EXTERNAL ROUTINE
	EDT$$TI_FLUSHJOUFI : NOVALUE;

    EXTERNAL
	TIN_OBUF : VECTOR [CH$ALLOCATION (256, BYTE_SIZE)],	! The journal buffer
	TIN_OBUFPOS;			! Position in journal output buffer

    IF (.TIN_OBUFPOS EQL 254) THEN EDT$$TI_FLUSHJOUFI (%C'T');

    CH$WCHAR (.BUF, CH$PTR (TIN_OBUF, .TIN_OBUFPOS, BYTE_SIZE));
    TIN_OBUFPOS = .TIN_OBUFPOS + 1;
    END;

%SBTTL 'EDT$$TI_BUFSTR  - buffer a string for the journal file'

GLOBAL ROUTINE EDT$$TI_BUFSTR (			! Buffer a string for the journal file
	BUF,					! Byte pointer to string
	LEN					! Length of string
    ) : NOVALUE =

!++
! FUNCTIONAL DESCRIPTION:
!
!	This routine saves a string for the journal file.  If the journal
!	output buffer is full, then it is written out, then the string
!	is placed in the buffer.
!
! FORMAL PARAMETERS:
!
!  BUF 			Pointer to string to save
!  LEN			Length of string
!
! IMPLICIT INPUTS:
!
!	TIN_OBUF
!	TIN_OBUFPOS
!
! IMPLICIT OUTPUTS:
!
!	TIN_OBUFPOS
!
! ROUTINE VALUE:
!
!	NONE
!
! SIDE EFFECTS:
!
!	May write a record on the journal file.
!
!--

    BEGIN

    EXTERNAL ROUTINE
	EDT$$TI_FLUSHJOUFI : NOVALUE;

    EXTERNAL
	TIN_OBUF : VECTOR [CH$ALLOCATION (256, BYTE_SIZE)],	! The journal buffer
	TIN_OBUFPOS;			! Position in journal output buffer

    IF (.LEN LEQ 0) THEN RETURN;

    IF ((.LEN + .TIN_OBUFPOS) GEQ 254) THEN EDT$$TI_FLUSHJOUFI (%C'T');

    CH$MOVE (.LEN, .BUF, CH$PTR (TIN_OBUF, .TIN_OBUFPOS, BYTE_SIZE));
    TIN_OBUFPOS = .TIN_OBUFPOS + .LEN;
    END;


END
ELUDOM