I think we should change FOR in line with the proposed change to POP-2, ie:
	DEFINE MACRO FOR v FROM i STEP s TILL c THEN a CLOSE;
		i -> v;
		UNTIL v c THEN a; v s -> v CLOSE;
	END MACRO;
.br
For example:
	FOR X FROM 1 STEP +1 TILL =10 THEN X=> CLOSE
	FOR X FROM [A B C D] STEP .TL TILL =[] THEN HD(X)=> CLOSE
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What do you think?
