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01:51 askhader: Is using xepr-response/cookies necessary when constructing a request that contains a cookie?
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10:49 askhader: Is using xepr-response/cookies necessary when constructing a request that contains a cookie?
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11:51 tao-: oh hi
12:07 chandler: Hello!
12:12 tao-: yes
12:55 tao-: how can i make a recursive lambda ? :O
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12:56 bremner: bind it to variable in the surrounding scope?
13:01 tao-: that's not really a lambda, is it?
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13:13 bremner: ah, maybe you are looking for something like the Y combinator.
13:15 askhader: I heard about this first this week, rather mind blowing. ^
13:32 tao-: fdgsfmm
13:32 tao-: umm
13:32 tao-: what's a Y combinator?
13:33 askhader: Why do you need a recursive lambda statement?
13:33 tao-: im just curious tbh
13:41 bremner: tao-: google is your friend :)
13:42 bremner: google "Y combinator scheme" brings up some likely looking hits
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17:16 adamvh: Possibly stupid question:  does racket come with a list concatenation function, and, if yes, what is it named?
17:16 adamvh: I can't for the life of me find one in the 'guide to racket'
17:17 askhader: Have you heard of append?
17:20 adamvh: is there like a clhs for racket where I can find the definition?
17:20 adamvh: ah yes, that works, thanks
17:21 askhader: No problem. Also ->   http://docs.racket-lang.org/
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17:43 chandler: Is it just me, or is the threading on gmane.mumble.racket.{user,devel} broken?
17:43 chandler: It seems to be broken on http://news.gmane.org/gmane.comp.lang.racket.user too.
18:15 adamvh: Any users of the parser-tools library?
18:16 askhader: Is using xepr-response/cookies necessary when constructing a request that contains a cookie?
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19:06 askhader: Really? Nobody has encountered this?
19:33 askhader: I am using (redirect-to   in order to redirect a user to a page after issuing them a cookie, however when I attempt to extract the list of cookies, I get '() which leads me to believe that the issuing of the cookie was not succsessful, however no error was produced. Here is the relevant code: http://paste.lisp.org/+2ECB
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20:19 adamvh: Any opinions on the "CLOS" in Swindle?
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22:21 adamvh: Is there any way to destructure within a syntax-case like one can do with common lisp macro arguments?
22:21 jonrafkind: you want to use car and cdr on the syntax objcets?
22:28 adamvh: I'm probably not being clear enough
22:28 adamvh: In common lisp, I can do something like
22:29 jonrafkind: (also fwiw, syntax-parse is basically a strict superset of syntax-case and I recommend using that instead)
22:29 adamvh: (defmacro foo (bar (baz quuz (spam and so on))) body)
22:29 jonrafkind: oh look at `define-syntax-rule'
22:29 adamvh: and then call it
22:29 jonrafkind: thats equivalent
22:30 jonrafkind: i mean you want to match (bar (baz ...)) to the syntax object that is passed to `foo' right?
22:30 adamvh: (foo argument (more arguments (yet more args here)))
22:30 adamvh: yes
22:30 adamvh: I want to match a tree
22:30 adamvh: not just a flat list
22:30 jonrafkind: ok, define-syntax-rule turns into (define-syntax ... (syntax-rules ...))
22:31 adamvh: and the docs are not clear on whether this is possible
22:31 jonrafkind: so if you want to write the full transformer im not sure of a way to do that
22:31 adamvh: I am guessing I will need nested syntax-case
22:31 adamvh: statements
22:31 jonrafkind: you can match tree structures with syntax-case
22:32 jonrafkind: (syntax-case #'(1 (2)) () [(a (b)) ...])
22:32 jonrafkind: am I getting you wrong/
22:32 jonrafkind: ?
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22:36 adamvh: Hmm I hadn't tried
22:36 adamvh: I was reading the docs and couldn't really find the answer
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22:37 jonrafkind: oh i guess there are no examples of nested syntax patterns
22:38 jonrafkind: the CFG for syntax patterns is "clear" about what you can do, but reading CFG's is a bit boring
22:38 adamvh: What does CFG stand for?
22:39 jonrafkind: context free grammar
22:39 jonrafkind: that stuff at the top, pattern = ...
22:40 jonrafkind: since a pattern can be (pattern ...) that means you can write nested patterns
22:40 jonrafkind: i guess its not entirely clear that the () are literal
22:40 jonrafkind: on the syntax-case page
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22:42 adamvh: Oh I get it, yes, the definition of pattern is recursive...
22:42 adamvh: Still not quite a pro at reading the CFG
22:42 jonrafkind: examples would have helped, right?
22:42 jonrafkind: of nested syntax
22:42 adamvh: definitely
22:43 adamvh: Because at that point I would have said to myself "Ah, this is how I defmacro!"
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