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 %TITLE 'CHMGINSTR - scan an insert command string'
MODULE CHMGINSTR (				! Scan an insert command string
		IDENT = '1-004'			! File: CHMGINSTR.BLI Edit: GB1004
		) =
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 scans over the string of characters to be inserted
!	by an insert command.
!
! 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$$SCAN_INSSTR  from module CHANGE.BLI.
! 1-002	- Regularize headers.  JBS 02-Mar-1981
! 1-003	- Add a return value to indicate end of journal file.  JBS 02-Oct-1981
! 1-004 - Change CMD_BUF to CMD_PTR.  GB 09-Mar-1983
!--

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

REQUIRE 'EDTSRC:TRAROUNAM';

FORWARD ROUTINE
    EDT$$SCAN_INSSTR;				! Scan over the string of characters to be inserted

!
! INCLUDE FILES:
!

REQUIRE 'EDTSRC:EDTREQ';

!
! MACROS:
!
!	NONE
!
! EQUATED SYMBOLS:
!
!	NONE
!
! OWN STORAGE:
!
!	NONE
!
! EXTERNAL REFERENCES:
!
!	In the routine
%SBTTL 'EDT$$SCAN_INSSTR  - scan an insert command'

GLOBAL ROUTINE EDT$$SCAN_INSSTR 		! Scan an insert command
    =

!++
! FUNCTIONAL DESCRIPTION:
!
!	This routine scans over the string of characters to be inserted by
!	an insert command.
!
!	An insert string is delimited by either a CTRL/Z character, or the printable
!	equivalent of ^Z or ^z.
!
!	The command pointer CMD_PTR  is left pointing one character beyond the command.
!
! FORMAL PARAMETERS:
!
!	NONE
!
! IMPLICIT INPUTS:
!
!	CMD_END
!	CMD_PTR
!
! IMPLICIT OUTPUTS:
!
!	CMD_PTR
!	SEA_LEN
!
! ROUTINE VALUE:
!
!	1 = ok, 0 = end of journal file
!
! SIDE EFFECTS:
!
!	NONE
!
!--

    BEGIN

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

    EXTERNAL
	CMD_END,				! End of command pointer
	CMD_PTR,				! Command string pointer
	SEA_LEN;				! Length of search string.

    LOCAL
	SUCCEED;

    SUCCEED = 1;
    SEA_LEN = 0;

    WHILE 1 DO
	BEGIN

	IF CH$PTR_EQL (.CMD_PTR, .CMD_END)
	THEN
	    BEGIN
	    SUCCEED = EDT$$INS_MOD ();
	    EXITLOOP;
	    END;

	IF (CH$RCHAR (.CMD_PTR) EQL ASC_K_CTRL_Z)
	THEN
	    BEGIN
	    CMD_PTR = CH$PLUS (.CMD_PTR, 1);
	    EXITLOOP;
	    END;

	IF ((CH$RCHAR (.CMD_PTR) EQL %C'^') AND 	!
	    ((CH$RCHAR (CH$PLUS (.CMD_PTR, 1)) EQL %C'Z') OR 	!
	    (CH$RCHAR (CH$PLUS (.CMD_PTR, 1)) EQL %C'z')))
	THEN
	    BEGIN
	    CMD_PTR = CH$PLUS (.CMD_PTR, 2);
	    EXITLOOP;
	    END;

	CMD_PTR = CH$PLUS (.CMD_PTR, 1);
	SEA_LEN = .SEA_LEN + 1;
	END;

    RETURN (.SUCCEED);
    END;


END
ELUDOM