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Re: [Chicken-users] Parsing HTML, best practice with Chicken

From: John Cowan
Subject: Re: [Chicken-users] Parsing HTML, best practice with Chicken
Date: Wed, 31 Dec 2014 21:41:21 -0500
User-agent: Mutt/1.5.20 (2009-06-14)

mfv scripsit:

> I am still puzzled how undefined is generated. It can not come from the 
>   (if (string? str) ...
> clause. Or does it? I understand that you used 'and' and remove one
> redundant check with if. But what form produced the #undefined output?

The form "(if p t)" will return an undefined value if p is false.

John Cowan        address@hidden
A few times, I did some exuberant stomping about, like a hippo auditioning
for Riverdance, though I stopped when I thought I heard something at
the far side of the room falling over in rhythm with my feet.  --Joseph Zitt

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