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 %TITLE 'CHMENDWRD - find the end of a word'
MODULE CHMENDWRD (				! Find the end of a word
		IDENT = '1-004'			! File: CHMENDWRD.BLI Edit: STS1004
		) =
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 finds the end of the word entity.
!
! 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$$FND_EWD  from module CHANGE.BLI.
! 1-002	- Regularize headers.  JBS 27-Feb-1981
! 1-003	- Fix module name.  JBS 02-Mar-1981
! 1-004 - Add handling for new type of word. STS 23-Oct-1981
!--

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

REQUIRE 'EDTSRC:TRAROUNAM';

FORWARD ROUTINE
    EDT$$FND_EWD;				! Find the end of a word

!
! INCLUDE FILES:
!

REQUIRE 'EDTSRC:EDTREQ';

!
! MACROS:
!
!	NONE
!
! EQUATED SYMBOLS:
!
!	NONE
!
! OWN STORAGE:
!
!	NONE
!
! EXTERNAL REFERENCES:
!
!	In the routine
%SBTTL 'EDT$$FND_EWD  - find the end of a word'

GLOBAL ROUTINE EDT$$FND_EWD 			! Find the end of a word
    =

!++
! FUNCTIONAL DESCRIPTION:
!
!	Find the end of a word.
!
!	The number of characters between the cursor and the end of the word
!	is returned.
!
! FORMAL PARAMETERS:
!
!	NONE
!
! IMPLICIT INPUTS:
!
!	US_ENT
!	LN_BUF
!	WRDTYP
!	LN_PTR
!
! IMPLICIT OUTPUTS:
!
!	NONE
!
! ROUTINE VALUE
!
!	The number of characters between the cursor and the end of the word.
!
! SIDE EFFECTS:
!
!	NONE
!
!--

    BEGIN

    EXTERNAL ROUTINE
	EDT$$TST_ENTDELIM,		! Determine if the current character is an entity delimiter
	EDT$$CS_RIGHT;			! Move right a character

    EXTERNAL
	US_ENT : VECTOR,		! Pointers to user defined entities
	LN_BUF,				! Current line buffer
	WRDTYP,				! indicates whether delimiters are words
	LN_PTR;				! Current character pointer

    LOCAL
	SIZE;

    SIZE = 0;
!+
! Scan up to a delimiter.
!-

    WHILE ( NOT EDT$$TST_ENTDELIM (.US_ENT [0])) DO
	BEGIN

	IF NOT EDT$$CS_RIGHT () THEN EXITLOOP;

	SIZE = .SIZE + 1;
	END;

!+
! If the delimiter was a space, or there were no characters before the
! delimiter, then scan past all trailing spaces (but do not cross a line).
!-

    IF (.WRDTYP EQL DELIMITED ) THEN
	BEGIN
	IF ((.SIZE EQL 0) OR (CH$RCHAR (.LN_PTR) EQL %C' '))
	THEN

	    DO
		BEGIN
		EDT$$CS_RIGHT ();
		SIZE = .SIZE + 1;
		END
	    UNTIL (CH$PTR_EQL (.LN_PTR, CH$PTR (LN_BUF,, BYTE_SIZE)) OR
		(CH$RCHAR (.LN_PTR) NEQ %C' '));
	END
    ELSE
!
! delimiters are not considered words so pass over any delimiters
!
	BEGIN
	IF (.SIZE EQL 0) OR (EDT$$TST_ENTDELIM(.US_ENT[0]))
	THEN

	DO
	    BEGIN
	    IF NOT EDT$$CS_RIGHT () THEN EXITLOOP;
	    SIZE = .SIZE + 1;
	    END
	UNTIL (NOT EDT$$TST_ENTDELIM(.US_ENT[0]));
    END;

    RETURN (.SIZE);
    END;


END
ELUDOM