[plt-scheme] Are booleans s-expressions?
On 3/19/10 10:20 AM, Matthias Felleisen wrote:
>
>
> On Mar 19, 2010, at 10:18 AM, David Van Horn wrote:
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>> On 3/19/10 6:52 AM, Matthias Felleisen wrote:
>>>
>>> That bug was fixed a week ago. Next release is coming out soon.
>>
>> If you understand S-expressions as anything you can write down with
>> quote notation, then Booleans are not S-expressions in ISL. So what
>> does fixing the bug mean? Can you write #t and #f for Booleans now?
>
>
> No. Instead we don't teach about ' in the way older Lispers did :-)
So do you just not teach quote at all? (I've been tempted to cut quote
out altogether).
If you do teach it, what do you say quote does? I would say it's a
convenient notation for S-expressions, but now I'd have to say it's a
convenient notation for S-expressions without Booleans.
David