30 May
2008
30 May
'08
12:09 a.m.
On Thu, 29 May 2008 17:33:05 -0400, "Andrei Stebakov" lispercat@gmail.com wrote:
I wonder if response should be nil when content-length is 0?
The first return value of HTTP-REQUEST isn't necessarily a string, it can also be an array of octets or a stream, so there's no particular reason to assume that you'll get a string of length zero if the content length is zero. But you can, no matter if it's a string, an octet array, or NIL always check with LENGTH first.
One could argue that a zero-length array would be more appropriate, but I think returning NIL in this case is more Lisp-y.
Having said that, I realize that NIL isn't even mentioned as a potential return value, so I should probably add this to the documentation.