Tim,

Try something like this (it is not heavily tested so you may need to do some debugging);

LPARAMETERS pcString
pcString = TRIM(pcString)
LOCAL lnCnt, lcChar
FOR lnCnt = LEN(pcstring)-1 to 0 STEP -1
	lcChar = SUBSTR(pcString,lnCnt,1)
	IF lcChar = CHR(13) OR ;
           lcChar = CHR(10) or ;
           lcChar = " " or ;
           lcChar = CHR(9)
		pcString = LEFT(pcString,LEN(pcString)-1)
	ELSE
		EXIT
	ENDIF
ENDFOR
RETURN pcString