How to parse commas within a List Box

[#1]

Hello,

I am on JMP 18.1.2 and am attempting to create a matrix of check boxes. The final step which I cannot figure out, is how to dynamically create the H List Box based on number of rows.

This is my current code:

test = {"a","b","c","d","e"};
testFin = {};
rows = 2;
remain = Modulo(N Items(test), rows);
loops = 2 + (remain > 0);
//create a list that groups the original list in groups of 2 (rows)
for(i=1, i<= loops, i++,
	test2 = {};
	if(i != loops,
		for(j = 1, j<= rows, j++,
			test2[j] = test[1];
			test = remove(test,1);
		);
		,
		for(j = 1, j<= remain, j++,
			test2[j] = test[1];
			test = remove(test,1);
		);
	);
	testFin[i] = test2;
);

//testFin = {{"a", "b"}, {"c", "d"}, {"e"}}
cb = {};
cancel_check = 0;
ttp = "";
for(i = 1, i<= N Items(testFin), i++,
	if(i != N Items(testFin),
		ttp ||= "cb["||Char(i)||"] = Check Box(testFin["||Char(i)||"]), \!n"
		,
		ttp ||= "cb["||Char(i)||"] = Check Box(testFin["||Char(i)||"]);"
	);
);
/*ttp = "cb[1] = Check Box(testFin[1]), 
cb[2] = Check Box(testFin[2]), 
cb[3] = Check Box(testFin[3]);"*/
testw = new window("raaa", <<Modal,
	H List Box(
		parse(ttp);
	),
	H List Box(
		Button Box("OK",
			//testing
			cbtemp = cb[1] << Get Selected();
		),
		Button Box("Cancel", cancel_check = 1);
	);
);
if(cancel_check == 1,
	Stop()
);

The error I get when trying to run it is:

Unexpected ",". Perhaps there is a missing ";" or ",".
Line 1 Column 30: cb[1] = Check Box(testFin[1])►, 

The remaining text that was ignored was
,cb[2]=Check Box(testFin[2]),cb[3]=Check Box(testFin[3]);

The desired output (if I just replaced the parse with what ttp is and ran it) is attached and also below.
Thank you!

_________________

Desired Output

[#2]

I changed up your script a bit.  I continued using your methodology of building a string that contains the elements required to display the Check Boxes.

I also used

     Eval( Eval Expr())

To force the evaluation of the string before executing it.

Names Default To Here( 1 );
test = {"a", "b", "c", "d", "e"};
testFin = {};
rows = 2;
remain = Modulo( N Items( test ), rows );
loops = 2 + (remain > 0);
//create a list that groups the original list in groups of 2 (rows)
For( i = 1, i <= loops, i++,
	test2 = {};
	If( i != loops,
		For( j = 1, j <= rows, j++,
			test2[j] = test[1];
			test = Remove( test, 1 );
		)
	,
		For( j = 1, j <= remain, j++,
			test2[j] = test[1];
			test = Remove( test, 1 );
		)
	);
	testFin[i] = test2;
);

cb = {};
cancel_check = 0;
ttp = "lineupBox(ncol(" || Char( N Items( testFin ) ) || "),";
For( k = 1, k <= 2, k++,
	For( i = 1, i <= N Items( testFin ), i++,
		Try( ttp ||= "cb[" || Char( (k - 1) * N Items( testfin ) + i ) || "] =  Check Box(\!"" || testFin[i][k] || "\!")," )
	)
);
ttp = Substr( ttp, 1, Length( ttp ) - 1 ) || ")";

Eval(
	Eval Expr(
		testw = New Window( "raaa",
			<<Modal,
			Expr( Parse( ttp ) ),
			H List Box(
				Button Box( "OK", 
			//testing
					cbtemp = cb[1] << Get Selected()
				),
				Button Box( "Cancel", cancel_check = 1 )
			)
		)
	)
);

[#3 · Accepted solution]

I would avoid Parse() as it can be a nightmare to debug and it will teach you horrible ways of writing JSL script. I would attempt to do something like this or something similar which would avoid using Parse()

Names Default To Here(1);

test = {"a", "b", "c", "d", "e"};
testFin = {};
rows = 2;
remain = Modulo(N Items(test), rows);
loops = 2 + (remain > 0);

//create a list that groups the original list in groups of 2 (rows)
For(i = 1, i <= loops, i++,
	test2 = {};
	If(i != loops,
		For(j = 1, j <= rows, j++,
			test2[j] = test[1];
			test = Remove(test, 1);
		)
	,
		For(j = 1, j <= remain, j++,
			test2[j] = test[1];
			test = Remove(test, 1);
		)
	);
	testFin[i] = test2;
);

cancel_check = 0;
cbs = {};
hlb = H List Box();
For(i = 1, i <= N Items(testFin), i++,
	hlb << Append(cbs[i] = Check Box(testFin[i]));
);

testw = New Window("raaa",
	<<Modal,
	hlb,
	H List Box(
		Button Box("OK", 
			//testing
			cbtemp = cb[1] << Get Selected()
		),
		Button Box("Cancel", cancel_check = 1)
	)
);

If(cancel_check == 1, Stop());