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2015-06-16T09:38:49Z ecraven: what Schemes except Guile are nicely embeddable into C/++?
2015-06-16T09:41:46Z wasamasa: I'd try the ones compiling to C
2015-06-16T09:41:52Z wasamasa: so, CHICKEN and gambit
2015-06-16T09:42:45Z wasamasa: I've tried a simple shared library example with CHICKEN and learned that the code you're calling the functions from needs to be linked against it and do some initialization
2015-06-16T09:42:50Z wasamasa: after that it's smooth sailing
2015-06-16T09:43:50Z wasamasa: it being libchicken and the shared library you're calling the scheme functions from
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2015-06-16T09:56:29Z ecraven: I've just investigated some games using lua internally recently, and thought this should work even better with Scheme :)
2015-06-16T09:56:36Z ecraven: I'll look into libchicken
2015-06-16T09:57:40Z wasamasa: games?
2015-06-16T09:57:51Z wasamasa: sounds like http://pestilenz.org/~ckeen/blog/posts/invaders.html
2015-06-16T09:57:54Z ecraven: Don't Starve for example is almost entirely in lua
2015-06-16T09:58:22Z wasamasa: or http://alex-charlton.com/posts/Prototype_to_polish_Making_games_in_CHICKEN_Scheme_with_Hypergiant/
2015-06-16T09:58:23Z rudybot: http://teensy.info/zWJ9mBnJ4H
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2015-06-16T10:07:25Z wasamasa: ecraven: there are a few apps written in gambit, some of them are games
2015-06-16T10:07:33Z wasamasa: ecraven: even IDEs for it
2015-06-16T10:07:49Z wasamasa: ecraven: http://gambitscheme.org/wiki/index.php/Real-world_software_and_services
2015-06-16T10:11:17Z ecraven: hypergiant looks interesting, I remember reading about that, but not actually investigating it further
2015-06-16T10:14:36Z wasamasa: the question is whether you want 2d or 3d
2015-06-16T10:16:43Z ecraven: are there better libraries for 2d than hypergiant?
2015-06-16T10:16:48Z kephra: wasamasa, the Clojure to Gambit compiler might solve the biggest Clojure problem - Clojure has no tail optimization
2015-06-16T10:17:17Z kephra: so if you are thinking Lisp, Clojure code goes boom
2015-06-16T10:18:05Z wasamasa: ecraven: hypergiant is for 3d
2015-06-16T10:18:13Z wasamasa: ecraven: doodle is for 2d (as it's using sdl2)
2015-06-16T10:18:20Z wasamasa: err, sdl1
2015-06-16T10:18:30Z wasamasa: an update to sdl2 would be nice
2015-06-16T10:19:27Z kephra: ecraven, the benefit of embedding Lua is that Lua has both light and heavy weight user objects
2015-06-16T10:20:08Z kephra: and I prefer Lua C interface to any Lisp FFI I seen so far
2015-06-16T10:20:27Z kephra: ( including the ffi I did for GCL/OpenGL ages ago )
2015-06-16T10:20:32Z wasamasa: kephra: and the startup speed
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2015-06-16T10:21:17Z kephra: *oh* yeah Lua speed, and that you can run several Lua interpreters, e.g. in multiple threads
2015-06-16T10:21:44Z wasamasa: I meant for clojure to gambit
2015-06-16T10:22:01Z kephra: *oh* yeah!
2015-06-16T10:22:17Z kephra: Java startup slowless is well known
2015-06-16T10:22:58Z kephra: you might shock Clojure users, by running even a normal CGI with gambit/clojure ;-)
2015-06-16T10:23:12Z wasamasa: and ram usage should be lower
2015-06-16T10:23:28Z wasamasa: I'm scared of running out of ram when starting more than one leiningen instance
2015-06-16T10:24:22Z kephra: about RAM usage - i'm not Clojure compatible - whenever I see s-expressions, I start to think recursive
2015-06-16T10:25:18Z wasamasa: hmm, now that I think of it, clojure's approach to recursion should be portable to elisp and CL
2015-06-16T10:26:15Z wasamasa: explicitly specifying a tail-recursion point and transforming the code to something trampoline-like
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2015-06-16T10:31:29Z kephra: wasamasa, the better CL implementation do TCO - http://0branch.com/notes/tco-cl.html
2015-06-16T10:33:08Z wasamasa: https://github.com/tali713/tail-call/blob/master/let-recur.el#L93-L103
2015-06-16T10:34:52Z kephra: I'm still not sure what backend to use for o3db
2015-06-16T10:35:37Z kephra: could not get warm with racket - still like mit-scheme most ;-(
2015-06-16T10:35:55Z kephra: but mit-scheme as a webserver backend?
2015-06-16T10:36:54Z kephra: one design difference - a machine will have to run several hundred small application web servers
2015-06-16T10:37:53Z kephra: most servers will only have one real human user at a time, so they need to start/stop on demand
2015-06-16T10:38:21Z kephra: i think memory footprint per server might become important
2015-06-16T10:38:52Z kephra: and replacing file IO must be possible
2015-06-16T10:39:24Z kephra: so, the Scheme must run without open-input-file, open-output-file
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2015-06-16T10:40:10Z kephra: basically, I need a Lua like Scheme - even if not coding a game
2015-06-16T10:40:37Z kephra: and not a Scheme to C compiler - it must be an interpreter
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2015-06-16T10:43:01Z Kooda: Chibi-scheme?
2015-06-16T10:43:50Z Kooda: Or even… tinyscheme?
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2015-06-16T10:47:04Z kephra: *hm* TinyScheme = Script-Fu ... might be an option, as its r5rs, iirc
2015-06-16T10:50:03Z Kooda: Chibi-scheme is made to be embeddable too
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2015-06-16T10:57:50Z kephra: but chibi is r7
2015-06-16T10:59:13Z kephra: the two Gimp schemes might be worth to investigate (or had there be 3 Gimp Schemes)
2015-06-16T11:00:42Z Kooda: How is r7rs bad?
2015-06-16T11:01:06Z kephra: r7rs would create the technical debt to raise my own scheme to r7 also
2015-06-16T11:01:56Z kephra: and I'm happy that I now have full r4 plus a few addons like exception handling, environments, hash tables, ...
2015-06-16T11:02:24Z kephra: full = including full call/cc
2015-06-16T11:02:53Z kephra: but I offer both call/ec and call/cc, because escape continuations are much cheaper
2015-06-16T11:04:43Z Kooda: Why not using your own implementation then? :o
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2015-06-16T11:05:23Z kephra: two reasons: 1st my Scheme runs in browser - 2nd its likely the slowest Scheme look like possible
2015-06-16T11:06:04Z kephra: Kooda, http://o3db.com/proto/veritas.html <- take a look at HTML source code ;-)
2015-06-16T11:06:31Z Kooda: Ah!
2015-06-16T11:09:30Z kephra: Kooda, you understand, why i'm search for an r4 or r5 for server, now
2015-06-16T11:09:53Z Kooda: Indeed. :)
2015-06-16T11:10:03Z Kooda: Tinyscheme might suit you then.
2015-06-16T11:10:45Z kephra: an no - node.js is not an option - this would be horrible slow
2015-06-16T11:11:15Z kephra: yeah - especially, as the Gimp community knows it
2015-06-16T11:14:02Z ecraven: kephra: guile can be embedded, I think?
2015-06-16T11:15:01Z kephra: guile has the benefit that I might share libs with GnuCash
2015-06-16T11:15:30Z kephra: my source are GPLes anyway
2015-06-16T11:16:52Z kephra: and guile might offer to code JS
2015-06-16T11:16:54Z kephra shivers
2015-06-16T11:18:14Z kephra: i'll investigate memory footprint, and performance when I need it - till then mit-scheme will do it
2015-06-16T11:18:25Z ecraven: kephra: what did you mean about lua having light and heavy weight objects?
2015-06-16T11:19:30Z kephra: ecraven, http://www.lua.org/pil/28.5.html
2015-06-16T11:23:17Z ecraven: kephra: ah, so a light userdata is essentially an opaque pointer object
2015-06-16T11:24:01Z kephra: yes, while heavy userdata is memory managed by GC with methods coded in C
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2015-06-16T14:36:17Z pflanze: I've written a ((fold-right-left fn tailfn l) state) which calls (fn val state restfn), where state  (restfn state) corresponds to the rest value that fold-right passes to its function argument;
2015-06-16T14:37:10Z pflanze: when it reaches the end of the list, (restfn state) calls (tailfn state).
2015-06-16T14:37:29Z pflanze: i.e. this is a hybrid of both fold-left and fold-right
2015-06-16T14:37:55Z pflanze: Any compliments for my smartness, and suggestions for a better name or whether something like this already exists?
2015-06-16T14:38:45Z vanila: can you paste th ecode?
2015-06-16T14:39:08Z pflanze: Hm, I kind-of lied, wrote it in Perl, but let me rewrite it in actual Scheme code.
2015-06-16T14:39:51Z vanila: just post the perl
2015-06-16T14:40:09Z LeoNerd: "fold-right-left" sounds a nonobvious name at first glance
2015-06-16T14:41:11Z pflanze: ok, moment
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2015-06-16T14:42:51Z pflanze: https://gist.github.com/pflanze/3ce67263a06001c1abed
2015-06-16T14:43:38Z pflanze: It uses my functional-perl libraries (functional-perl.org), but not sure the published version contains everything it need.
2015-06-16T14:43:57Z pflanze: needs. Will push a big amount of work soon.
2015-06-16T14:44:42Z vanila: I think it could be wmritten as a normal right fold
2015-06-16T14:44:56Z vanila: it's kind of weird
2015-06-16T14:45:51Z pflanze: No, the difference is that it can pass down information from the elements left to what element fn receives.
2015-06-16T14:47:13Z vanila: ah
2015-06-16T14:47:23Z vanila: it's hard to name yeah..
2015-06-16T14:47:31Z vanila: it's not like anything I've seen
2015-06-16T14:47:43Z pflanze: Say, you want to number all <hX> sections in an SXML data structure: you want to modify them, thus map or fold-right would do the job, but also need to count them.
2015-06-16T14:48:04Z vanila: stateful fold ?:)
2015-06-16T14:48:09Z vanila: state-fold
2015-06-16T14:48:24Z pflanze: A case where mutation works easily, of course; also, perhaps this is kind of a merger  between the state monad and fold-right?
2015-06-16T14:48:39Z pflanze: state-fold-right
2015-06-16T14:48:56Z pflanze: Well, don't know which really :)
2015-06-16T14:52:01Z pflanze: I'll ask the haskell folks some time. I really suspect they'll point to some solution involving the state monad, though.
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2015-06-16T16:57:30Z dcz: bebek
2015-06-16T16:57:52Z sdrag: hi
2015-06-16T16:59:43Z dcz: hi
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2015-06-16T17:12:45Z sdrag: hi i started to study scheme.But i did not understand derivatives.Can anyone help me with derivative codes ?
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2015-06-16T17:13:15Z LeoNerd: As in, the calculus maths concept?
2015-06-16T17:13:20Z LeoNerd not sure how this relates to scheme
2015-06-16T17:13:32Z sdrag: yes in calculus
2015-06-16T17:13:43Z sdrag: i can write an example
2015-06-16T17:14:09Z vanila: the derivative of a function tells you its slope
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2015-06-16T17:14:49Z sdrag: (x*x)+(3*x)+2 is (2*x)+3
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2015-06-16T17:15:26Z sdrag: i want to write a code that calculates the derivate of the function
2015-06-16T17:15:31Z sdrag: i can not
2015-06-16T17:15:39Z dcz: askim harika gidiyosun :D
2015-06-16T17:16:13Z ecraven: sdrag: you need to analyze the expression, then apply the normal calculus rules to it
2015-06-16T17:17:03Z sdrag: i have an simple code for derivative but i can not do it for complex functions
2015-06-16T17:17:08Z vanila: sdrag, write it in scheme like this
2015-06-16T17:17:19Z vanila: (+ (+ (* x x) (* 3 x)) 2)
2015-06-16T17:19:04Z sdrag: yes but where is the derivative
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2015-06-16T17:19:16Z sdrag: it is just an expression
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2015-06-16T17:19:21Z vanila: write a function to compute the derivative
2015-06-16T17:20:03Z ecraven: here: https://en.wikipedia.org/wiki/Derivative#Rules_of_computation
2015-06-16T17:20:06Z sdrag: https://paste.kde.org/pb5k6v3ym
2015-06-16T17:20:18Z sdrag: i have a code like this
2015-06-16T17:20:38Z vanila: oh
2015-06-16T17:20:51Z ecraven: that is numerical, not symbolic
2015-06-16T17:20:51Z vanila: this doesn't work too well on a computer
2015-06-16T17:21:00Z vanila: because dividing by a very small number can make it inaccurate
2015-06-16T17:22:11Z sdrag: it says for testing we should write ((deriv  cube  .001)  5) an we get 75.015
2015-06-16T17:22:25Z sdrag: i couldn't test it
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2015-06-16T17:22:51Z vanila: ah
2015-06-16T17:25:10Z sdrag: for example i want to find derivative of 3𝑥2−𝑦^2𝑥+2+3𝑥*5𝑦
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2015-06-16T17:25:23Z sdrag: according to x
2015-06-16T17:25:56Z sdrag: i should find −𝑦2+6𝑥+3/5𝑦
2015-06-16T17:26:02Z sdrag: buthow?
2015-06-16T17:26:18Z vanila: https://ideone.com/OJ463W
2015-06-16T17:26:25Z vanila: i tried your code in ideoone
2015-06-16T17:26:26Z vanila: it works!
2015-06-16T17:27:24Z sdrag: oo thank you
2015-06-16T17:27:35Z sdrag: i see
2015-06-16T17:27:52Z sdrag: but what about the other one
2015-06-16T17:28:02Z sdrag: this is for simple functions
2015-06-16T17:28:18Z sdrag: how should i do for complex functions
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2015-06-16T17:28:37Z vanila: your one gives a number back
2015-06-16T17:28:43Z vanila: its harder to get an expression back
2015-06-16T17:29:09Z vanila: you'd have to write it differently
2015-06-16T17:29:13Z sdrag: for example can we find derivative of (3𝑥^2−𝑦2𝑥+2+3𝑥/5𝑦) for that code?
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2015-06-16T17:29:37Z vanila: maybe you could say
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2015-06-16T19:37:11Z teurastaja: macros and multiple values dont work in r7rs gauche. is there any chance for this to be fixed or should i use another r7rs implementation?
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2015-06-16T19:41:39Z teurastaja: rudybot: eval (display "Test\n")
2015-06-16T19:41:39Z rudybot: teurastaja: your sandbox is ready
2015-06-16T19:41:39Z rudybot: teurastaja: ; stdout: "Test\n"
2015-06-16T19:41:58Z teurastaja: rudybot: eval (exit)
2015-06-16T19:41:58Z rudybot: teurastaja: error: evaluator: terminated (exited)
2015-06-16T19:42:14Z teurastaja: rudybot: eval 'test
2015-06-16T19:42:14Z rudybot: teurastaja: your sandbox is ready
2015-06-16T19:42:15Z rudybot: teurastaja: ; Value: 'test
2015-06-16T19:42:24Z teurastaja: rudybot: eval ((exit))
2015-06-16T19:42:24Z rudybot: teurastaja: error: evaluator: terminated (exited)
2015-06-16T19:42:30Z teurastaja: rudybot: eval '(exit)
2015-06-16T19:42:30Z rudybot: teurastaja: your sandbox is ready
2015-06-16T19:42:30Z rudybot: teurastaja: ; Value: '(exit)
2015-06-16T19:42:54Z dsp quit (Quit: leaving)
2015-06-16T19:42:58Z teurastaja: what are some sandbox evasion techniques?
2015-06-16T19:43:46Z teurastaja: rudybot: eval (command-line)
2015-06-16T19:43:46Z rudybot: teurastaja: Done.
2015-06-16T19:43:53Z alexei joined #scheme
2015-06-16T19:44:22Z teurastaja: rudybot: eval (exec cmd)
2015-06-16T19:44:22Z rudybot: teurastaja: error: exec: undefined; <NEWLINE>  cannot reference an identifier before its definition <NEWLINE>   in module: 'program
2015-06-16T19:44:30Z teurastaja: rudybot: eval (exec "cmd")
2015-06-16T19:44:30Z rudybot: teurastaja: error: exec: undefined; <NEWLINE>  cannot reference an identifier before its definition <NEWLINE>   in module: 'program
2015-06-16T19:44:32Z dsp joined #scheme
2015-06-16T19:45:09Z teurastaja: rudybot: help
2015-06-16T19:45:09Z rudybot: teurastaja: bug <more> ..., fom <more> ..., hopeless <more> ..., falsy <more> ..., bad-eval <more> ..., later "tell" <recipient> <message> ..., help [<what>], version, quote, source, url, seen <nick> <more> ..., where's <nick> <more> ..., uptime, t8 <from> <to> <text> ..., snotback, botsnack, init [<lang>], eval <expr> ..., give <to> <expr> ..., apropos <str> ..., desc <id>, doc <id>
2015-06-16T19:45:34Z teurastaja: rudybot: botsnack
2015-06-16T19:45:34Z rudybot dances happily
2015-06-16T19:45:46Z teurastaja: rudybot: source
2015-06-16T19:45:46Z rudybot: teurastaja: git clone git://github.com/offby1/rudybot.git
2015-06-16T19:48:46Z teurastaja: rudybot: eval (system cmd)
2015-06-16T19:48:46Z rudybot: teurastaja: error: cmd: undefined; <NEWLINE>  cannot reference an identifier before its definition <NEWLINE>   in module: 'program
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2015-06-16T19:55:08Z teurastaja: rudybot: eval (require racket/system)
2015-06-16T19:55:08Z rudybot: teurastaja: Done.
2015-06-16T19:55:44Z teurastaja: rudybot: eval (system "cmd")
2015-06-16T19:55:44Z rudybot: teurastaja: error: subprocess: `execute' access denied for /bin/sh
2015-06-16T19:55:59Z teurastaja: rudybot: eval (system "/bin/sh")
2015-06-16T19:55:59Z rudybot: teurastaja: error: subprocess: `execute' access denied for /bin/sh
2015-06-16T19:56:10Z teurastaja: hmm... interesting
2015-06-16T19:56:36Z teurastaja: rudybot: eval (system "/bin/bash")
2015-06-16T19:56:36Z rudybot: teurastaja: error: subprocess: `execute' access denied for /bin/sh
2015-06-16T19:56:41Z teurastaja: rudybot: eval (system "bash")
2015-06-16T19:56:41Z rudybot: teurastaja: error: subprocess: `execute' access denied for /bin/sh
2015-06-16T19:57:06Z teurastaja: rudybot: eval (system "echo \"test\"")
2015-06-16T19:57:06Z rudybot: teurastaja: error: subprocess: `execute' access denied for /bin/sh
2015-06-16T19:57:27Z teurastaja: rudybot: eval (system* "/bin/sh")
2015-06-16T19:57:27Z rudybot: teurastaja: error: subprocess: `execute' access denied for /bin/sh
2015-06-16T19:57:48Z teurastaja: rudybot: eval (system "ls")
2015-06-16T19:57:48Z rudybot: teurastaja: error: subprocess: `execute' access denied for /bin/sh
2015-06-16T19:58:13Z Riastradh: teurastaja: The /bin/sh it's talking about is the shell that system uses to execute the shell command you're trying to pass in.
2015-06-16T19:58:26Z Riastradh: It's unlikely that changing the shell command will make the attempt to execute /bin/sh work.
2015-06-16T19:58:57Z teurastaja: what would?
2015-06-16T19:59:13Z Riastradh: Something other than SYSTEM.
2015-06-16T19:59:48Z teurastaja: rudybot: eval (process "ls")
2015-06-16T19:59:48Z rudybot: teurastaja: error: subprocess: `execute' access denied for /bin/sh
2015-06-16T20:00:05Z teurastaja: rudybot: eval (process* "ls")
2015-06-16T20:00:06Z rudybot: teurastaja: error: subprocess: `execute' access denied for ls
2015-06-16T20:00:10Z rbryan: Can you have it evaluate with another shell?
2015-06-16T20:00:24Z Riastradh: Chances are those all go through the same layer.
2015-06-16T20:00:45Z teurastaja: im trying to evade the sandbox. if you want to help this can be educative
2015-06-16T20:00:50Z Riastradh: You probably won't make much progress breaking out of the sandbox by trying different shell commands like that.  I'd suggest starting with the source code.
2015-06-16T20:01:03Z rbryan: rudybot, eval (system)
2015-06-16T20:01:03Z rudybot: rbryan: your sandbox is ready
2015-06-16T20:01:03Z rudybot: rbryan: error: system: arity mismatch; <NEWLINE>  the expected number of arguments does not match the given number <NEWLINE>   expected: 1 plus an optional argument with keyword #:set-pwd? <NEWLINE>   given: 0
2015-06-16T20:01:36Z rbryan: rudybot, eval (version)
2015-06-16T20:01:36Z rudybot: rbryan: ; Value: "6.1.1"
2015-06-16T20:01:44Z rbryan: rudybot, eval (,?)
2015-06-16T20:01:45Z rudybot: rbryan: error: eval:1:1: unquote: not in quasiquote <NEWLINE>   in: (unquote ?)
2015-06-16T20:01:48Z rbryan: rudybot, eval ,?
2015-06-16T20:01:48Z rudybot: rbryan: error: eval:1:0: unquote: not in quasiquote <NEWLINE>   in: (unquote ?)
2015-06-16T20:02:04Z rbryan: rudybot, ,?
2015-06-16T20:02:04Z rudybot: rbryan: eh?  Try "rudybot: help".
2015-06-16T20:02:08Z rbryan: rudybot, help
2015-06-16T20:02:08Z rudybot: rbryan: bug <more> ..., fom <more> ..., hopeless <more> ..., falsy <more> ..., bad-eval <more> ..., later "tell" <recipient> <message> ..., help [<what>], version, quote, source, url, seen <nick> <more> ..., where's <nick> <more> ..., uptime, t8 <from> <to> <text> ..., snotback, botsnack, init [<lang>], eval <expr> ..., give <to> <expr> ..., apropos <str> ..., desc <id>, doc <id>
2015-06-16T20:02:21Z rbryan: rudybot, source
2015-06-16T20:02:21Z rudybot: rbryan: git clone git://github.com/offby1/rudybot.git
2015-06-16T20:02:45Z teurastaja: ive seen in the docs that theres a bug with server implementations where any unterminated header with make the server hang
2015-06-16T20:03:07Z rbryan: rudybot, where's teurastaja
2015-06-16T20:03:07Z rudybot: rbryan: teurastaja was seen in #scheme two minutes ago, saying "im trying to evade the sandbox. if you want to help this can be educative", and then teurastaja was seen in #scheme twenty-two seconds ago, saying "ive seen in the docs that theres a bug with server implementations where any unterminated header with make the server hang"
2015-06-16T20:03:32Z rbryan: rudybot, help bad-eval
2015-06-16T20:03:32Z rudybot: rbryan: bad-eval <more> ...: Emit the URL that explains why using 'eval' is generally a mistake
2015-06-16T20:03:43Z rbryan: rudybot, bad-eval
2015-06-16T20:03:43Z rudybot: rbryan: http://blog.racket-lang.org/2011/10/on-eval-in-dynamic-languages-generally.html
2015-06-16T20:03:45Z teurastaja: rudybot: seen rudybot
2015-06-16T20:03:45Z rudybot: teurastaja: rudybot was seen quitting three weeks ago, saying "Disconnected by services", and then rudybot_ was seen quitting three weeks ago, saying "Ping timeout: 265 seconds"
2015-06-16T20:04:05Z teurastaja: rudybot: eval (exit)
2015-06-16T20:04:06Z rudybot: teurastaja: error: evaluator: terminated (exited)
2015-06-16T20:04:24Z teurastaja: what is actually happening here?
2015-06-16T20:04:26Z ilammy: hm...
2015-06-16T20:04:32Z teurastaja: what is getting terminated?
2015-06-16T20:04:35Z ilammy: rudybot: seen ilammy
2015-06-16T20:04:35Z rudybot: ilammy: ilammy was seen in #scheme nine seconds ago, saying "hm...", and then ilammy was seen in #scheme zero seconds ago, saying "rudybot: seen ilammy"
2015-06-16T20:04:36Z rbryan: What version/implementation of scheme is this?
2015-06-16T20:05:14Z ilammy: teurastaja: I believe the process that executes your sandbox
2015-06-16T20:05:50Z rbryan: rudybot, eval ()
2015-06-16T20:05:50Z rudybot: rbryan: error: eval:1:0: #%app: missing procedure expression; <NEWLINE>  probably originally (), which is an illegal empty application <NEWLINE>   in: (#%app)
2015-06-16T20:05:54Z rbryan: rudybot, eval
2015-06-16T20:05:54Z rudybot: rbryan: error: text-from-word: Bad code, I have a bug -- got: ()
2015-06-16T20:05:58Z teurastaja: no it seems to be a subprocess :/
2015-06-16T20:05:59Z rbryan: rudybot, help eval
2015-06-16T20:05:59Z rudybot: rbryan: eval <expr> ...: evaluate an expression(s)
2015-06-16T20:06:06Z rbryan: rudybot, help
2015-06-16T20:06:06Z rudybot: rbryan: bug <more> ..., fom <more> ..., hopeless <more> ..., falsy <more> ..., bad-eval <more> ..., later "tell" <recipient> <message> ..., help [<what>], version, quote, source, url, seen <nick> <more> ..., where's <nick> <more> ..., uptime, t8 <from> <to> <text> ..., snotback, botsnack, init [<lang>], eval <expr> ..., give <to> <expr> ..., apropos <str> ..., desc <id>, doc <id>
2015-06-16T20:06:11Z rbryan: rudybot,  version
2015-06-16T20:06:11Z rudybot: rbryan: 745c18c
2015-06-16T20:06:16Z rbryan: rudybot, sourc
2015-06-16T20:06:16Z rudybot: rbryan: error: sourc: undefined; <NEWLINE>  cannot reference an identifier before its definition <NEWLINE>   in module: 'program
2015-06-16T20:06:18Z rbryan: rudybot, source
2015-06-16T20:06:18Z rudybot: rbryan: git clone git://github.com/offby1/rudybot.git
2015-06-16T20:07:18Z teurastaja: rudybot: nasty
2015-06-16T20:07:18Z rudybot: teurastaja: your sandbox is ready
2015-06-16T20:07:19Z rudybot: teurastaja: error: nasty: undefined; <NEWLINE>  cannot reference an identifier before its definition <NEWLINE>   in module: 'program
2015-06-16T20:07:34Z rbryan: rudybot, eval (require ffi/unsafe)
2015-06-16T20:07:34Z rudybot: rbryan: Done.
2015-06-16T20:07:37Z rbryan: :)
2015-06-16T20:08:01Z rbryan: Let's include the c stdlib.
2015-06-16T20:08:47Z rbryan: rudybot, eval (define libstd (ffi-lib "c"))
2015-06-16T20:08:47Z rudybot: rbryan: error: eval:1:16: ?: access disallowed by code inspector to protected variable from module: "/home/ec2-user/local/src/racket-6.1.1/collects/ffi/unsafe.rkt" <NEWLINE>   at: ffi-lib <NEWLINE>   in: get-ffi-lib
2015-06-16T20:08:53Z teurastaja: rudybot: eval dict?
2015-06-16T20:08:53Z rudybot: teurastaja: ; Value: #<procedure:dict?>
2015-06-16T20:09:07Z rbryan: rudybot, eval (define libstd (ffi-lib "libc"))
2015-06-16T20:09:07Z rudybot: rbryan: error: eval:1:16: ?: access disallowed by code inspector to protected variable from module: "/home/ec2-user/local/src/racket-6.1.1/collects/ffi/unsafe.rkt" <NEWLINE>   at: ffi-lib <NEWLINE>   in: get-ffi-lib
2015-06-16T20:09:11Z rbryan: rudybot, eval (define libstd (ffi-lib "libm"))
2015-06-16T20:09:11Z rudybot: rbryan: error: eval:1:16: ?: access disallowed by code inspector to protected variable from module: "/home/ec2-user/local/src/racket-6.1.1/collects/ffi/unsafe.rkt" <NEWLINE>   at: ffi-lib <NEWLINE>   in: get-ffi-lib
2015-06-16T20:09:21Z rbryan: :(
2015-06-16T20:10:08Z teurastaja: rudybot: eval (cwd)
2015-06-16T20:10:08Z rudybot: teurastaja: error: cwd: undefined; <NEWLINE>  cannot reference an identifier before its definition <NEWLINE>   in module: 'program
2015-06-16T20:12:07Z askatasuna quit (Quit: WeeChat 1.2)
2015-06-16T20:12:41Z rbryan: rudybot, eval (for ([path (in-directory)]) (printf "~a\n" path))
2015-06-16T20:12:41Z rudybot: rbryan: error: directory-list: `read' access denied for /mnt/rudybot/
2015-06-16T20:12:51Z rbryan: Found what directory it's in.
2015-06-16T20:13:24Z rbryan: rudybot, eval (in-directory)
2015-06-16T20:13:25Z rudybot: rbryan: ; Value: #<sequence>
2015-06-16T20:13:38Z rbryan: rudybot, eval (display (in-directory))
2015-06-16T20:13:38Z rudybot: rbryan: ; stdout: "#<sequence>"
2015-06-16T20:13:44Z rbryan: rudybot, eval (pp (in-directory))
2015-06-16T20:13:44Z rudybot: rbryan: error: pp: undefined; <NEWLINE>  cannot reference an identifier before its definition <NEWLINE>   in module: 'program
2015-06-16T20:13:48Z rbryan: rudybot, eval (print (in-directory))
2015-06-16T20:13:48Z rudybot: rbryan: ; stdout: "#<sequence>"
2015-06-16T20:14:29Z askatasuna joined #scheme
2015-06-16T20:18:12Z teurastaja: rudybot: eval (define (loop) (shift s (loop)))
2015-06-16T20:18:12Z rudybot: teurastaja: Done.
2015-06-16T20:18:22Z teurastaja: rudybot: eval (define (go) (reset (loop)))
2015-06-16T20:18:23Z rudybot: teurastaja: Done.
2015-06-16T20:18:42Z teurastaja: (go)
2015-06-16T20:18:52Z teurastaja: rudybot: eval (go)
2015-06-16T20:18:53Z rudybot: teurastaja: error: reset: undefined; <NEWLINE>  cannot reference an identifier before its definition <NEWLINE>   in module: 'program
2015-06-16T20:22:32Z teurastaja: rudybot: eval (require racket/control)
2015-06-16T20:22:33Z rudybot: teurastaja: Done.
2015-06-16T20:22:38Z teurastaja: rudybot: eval (define (loop) (shift s (loop)))
2015-06-16T20:22:38Z rudybot: teurastaja: Done.
2015-06-16T20:22:44Z teurastaja: rudybot: eval (define (go) (reset (loop)))
2015-06-16T20:22:44Z rudybot: teurastaja: Done.
2015-06-16T20:22:50Z teurastaja: rudybot: eval (go)
2015-06-16T20:23:00Z rudybot: teurastaja: error: with-limit: out of time
2015-06-16T20:23:25Z teurastaja: damnit i thought there was a segfault there...
2015-06-16T20:25:10Z teurastaja: rudybot: eval (define result ((inst call/cc Integer (-> Nothing)) (lambda (x) (lambda () (x 5)))))
2015-06-16T20:25:10Z rudybot: teurastaja: error: inst: undefined; <NEWLINE>  cannot reference an identifier before its definition <NEWLINE>   in module: 'program
2015-06-16T20:26:16Z teurastaja: rudybot: eval (require scheme/sandbox)
2015-06-16T20:26:17Z rudybot: teurastaja: Done.
2015-06-16T20:26:44Z teurastaja: rudybot: eval (define sandbox (make-evaluator 'typed/racket))
2015-06-16T20:26:47Z rudybot: teurastaja: Done.
2015-06-16T20:27:04Z rbryan: rudybot, eval (define test (lambda () (test)))
2015-06-16T20:27:04Z rudybot: rbryan: Done.
2015-06-16T20:27:12Z rbryan: rudybot, eval (test)
2015-06-16T20:27:15Z teurastaja: rudybot: eval (define result ((inst call/cc Integer (-> Nothing)) (lambda (x) (lambda () (x 5)))))
2015-06-16T20:27:23Z rudybot: rbryan: error: with-limit: out of time
2015-06-16T20:27:23Z rudybot: teurastaja: error: inst: undefined; <NEWLINE>  cannot reference an identifier before its definition <NEWLINE>   in module: 'program
2015-06-16T20:28:54Z teurastaja: rudybot: eval (require typed/racket)
2015-06-16T20:28:54Z rudybot: teurastaja: Done.
2015-06-16T20:29:02Z teurastaja: rudybot: eval (require scheme/sandbox)
2015-06-16T20:29:03Z rudybot: teurastaja: Done.
2015-06-16T20:29:12Z teurastaja: rudybot: eval (define result ((inst call/cc Integer (-> Nothing)) (lambda (x) (lambda () (x 5)))))
2015-06-16T20:29:12Z rudybot: teurastaja: error: eval:1:75: Type Checker: Cannot apply expression of type Any, since it is not a function type <NEWLINE>   in: (x 5)
2015-06-16T20:30:01Z teurastaja: theres a reason i never use racket...
2015-06-16T20:32:25Z ijp: you can get a private repl by using /query
2015-06-16T20:34:55Z teurastaja: but then no one would speak
2015-06-16T20:39:01Z ijp: no-one is speaking
2015-06-16T20:39:35Z rbryan: Then how would we learn from eachother's mistakes?
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2015-06-16T20:40:35Z ijp: I don't see any evidence of that happening
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