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 %TITLE 'PRGETTOK - scan a token'
MODULE PRGETTOK (				! Scan a token
		IDENT = '2-002'			! File: PRGETTOK.BLI Edit: CJG2002
		) =
BEGIN
!
!			  COPYRIGHT (c) 1983, 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:
!
!	Find the length and pointer to the current atom in the command buffer
!
! ENVIRONMENT:  TOPS-20 only
!
! AUTHOR: Bob Kushlis, CREATION DATE: December 12, 1978
!
! MODIFIED BY:
!
! 1-001	- Original.  DJS 25-Feb-1981.  This module was created by
!	extracting routine EDT$$PA_SCANTOK  from module PARSER.
! 1-002	- Regularize headers.  JBS 12-Mar-1981
! 1-003	- Suppress quoted strings if requested.  JBS 26-Aug-1981
! 1-004 - Change index on line numbers for 15 instead of 10 digits.  SMB 18-Jan-1982
! 1-005 - Accept quoted keys. STS 07-Apr-1982
! 1-006 - Delete reference to pa_val. STS 09-Apr-1982
!
! 2-001 - Rewrite for TOPS-20 version. CJG 4-Mar-83
! 2-002 - Look for ^_ in strings and convert to null. CJG 8-Nov-1983
!--

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

REQUIRE 'EDTSRC:TRAROUNAM';

FORWARD ROUTINE
    EDT$$PA_SCANTOK : NOVALUE;

!
! INCLUDE FILES:
!

REQUIRE 'EDTSRC:EDTREQ';

REQUIRE 'SYS:JSYS';

!
! MACROS:
!
!	NONE
!
! EQUATED SYMBOLS:
!
!	NONE
!
! OWN STORAGE:
!
!	NONE
!
! EXTERNAL REFERENCES:
!
!	In the routine
!<BLF/PAGE>
%SBTTL 'EDT$$PA_SCANTOK  - scan the next token'

GLOBAL ROUTINE EDT$$PA_SCANTOK ( 		! Scan the next token
			QST,			! Flag for quoted string
			CAP ) : NOVALUE =	! Capitalise the string


!++
! FUNCTIONAL DESCRIPTION:
!
! This routine uses the atom currently in the atom buffer to find the
! length of the atom. From this we can find the starting pointer to the
! atom in the command buffer. This is only required for string atoms.
!
!
! FORMAL PARAMETERS:
!
!	NONE
!
! IMPLICIT INPUTS:
!
!	CSB
!
! IMPLICIT OUTPUTS:
!
!	PA_CURTOK
!	PA_CURTOKLEN
!
! ROUTINE VALUE:
!
!	NONE
!
! SIDE EFFECTS:
!
!	NONE
!
!--

    BEGIN

    EXTERNAL ROUTINE
	EDT$$CNV_UPC : NOVALUE;		! Convert to upper case

    EXTERNAL
	PA_CURTOK,			! start of the current token
	PA_CURTOKLEN,			! length of current token
	CSB : VECTOR [10];		! Command state block (with pointers)

    LOCAL
	CHAR,
	PTR;				! A temp pointer

    PTR = .CSB [$CMABP];
    PA_CURTOKLEN = 0;

    WHILE 1 DO
	BEGIN
	CHAR = CH$RCHAR (.PTR);
	IF (.CHAR NEQ 0) THEN
	    BEGIN
	    PA_CURTOKLEN = .PA_CURTOKLEN + 1;
	    IF (.CHAR EQL %O'37') THEN CHAR = 0;
	    CH$WCHAR_A (.CHAR, PTR);
	    END
	ELSE
	    EXITLOOP;
	END;

    PA_CURTOK = CH$PLUS (.CSB [$CMPTR], -(.PA_CURTOKLEN + .QST));
    CH$MOVE (.PA_CURTOKLEN, .CSB [$CMABP], .PA_CURTOK);		! Replace the string
    IF .CAP THEN EDT$$CNV_UPC (.PA_CURTOK, .PA_CURTOKLEN);
    END;

END
ELUDOM