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04:42 Blkt: good morning everyoen
04:43 Blkt: everyone*
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04:48 noelw: Hi
04:50 Blkt: :D
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11:16 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/FxZ39g
11:16 RacketCommitBot: [racket/master] Adding an example for `define-match-expander'. - Danny Yoo
11:16 RacketCommitBot: [racket/master] uClibc doesn't support getcontext(). - Tony Garnock-Jones
11:30 tonyg: Is there a memory profiler or similar I can use to get some idea of how Racket is using memory?
11:31 samth: tonyg: there's `dump-memory-stats'
11:31 samth: rudybot: doc dump-memory-stats
11:31 rudybot: samth: your racket/init sandbox is ready
11:31 rudybot: samth: http://docs.racket-lang.org/reference/garbagecollection.html#(def._((quote._~23~25kernel)._dump-memory-stats))
11:32 tonyg: ok that's neat! thanks samth
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13:14 tonyg: what are the chances of getting a port-closed-evt ?
13:14 tonyg: port-closed-evt : port-closed? :: thread-dead-evt : thread-dead?
13:15 jonrafkind: i dunno, ask matthew
13:15 jonrafkind: probably close to 1
13:15 tonyg: :)
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14:11 Demosthenes: so i'm looking again at the lex parser that comes with racket after basically writing my own lexer. the syntax i'm still getting used to, but i'm stumped on the parser grammar. i was going to use match with mine, but figured learning the included one might make more sense. there's no examples in the documentation though, can someone recommend one?
14:13 jonrafkind: http://git.racket-lang.org/plt/blob_plain/HEAD:/collects/honu/core/read.rkt
14:13 rudybot: http://tinyurl.com/4xdrhq8
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14:15 Demosthenes: that's really... complex for a beginning example
14:17 shofetim: Is there a better way / some syntactic sugar for method chaining? rather then (send some-class second-method (send some-class first-method))
14:19 jonrafkind: Demosthenes, are you just looking at how to write the (lexer ...) tsuff?
14:21 Demosthenes: jonrafkind: i read the docs on lex and parse, and i'm currently looking at: https://gist.github.com/1068185
14:22 Demosthenes: like i said, i reimplemented my own lex, just to parse my data into tokens, so i get that, the syntax'll grow on me, but thats ok ;]
14:22 Demosthenes: its the parse that is opaque
14:22 jonrafkind: oh ok, i haven't used parse much
14:22 Demosthenes: the docs seem to assume you've used other lexer/parser combos
14:22 jonrafkind: LL/LR give me nightmares
14:23 Demosthenes: really, i'm trying to use lex/parse to pull data out of text records
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14:23 jonrafkind: id probably just use regular expressions with matching patterns
14:23 Demosthenes: regexps are a poor answer... lexing should let me do some type checking and alert if the record format changes... regexps wont
14:23 Demosthenes: these are paragraph records.
14:23 Demosthenes: not single line.
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14:24 Demosthenes: and i don't control the input format... the external vendor does. they are mostly english, but i have to basically reverse their printf template to get the data back
14:26 Demosthenes: http://pastebin.com/zXhRTnbV
14:26 Demosthenes: like that, but many different ones to match.
14:26 Demosthenes: its only a valid record if all lines are present, so regexps fall apart
14:26 Demosthenes: i still have to have a state machine
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16:29 asumu: shofetim: send*
16:38 shofetim: asumu: thanks : )
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16:56 DontChangeMyName: Hello there
16:57 DontChangeMyName: Would anyone tell me the best way to compare 2 strings?
16:57 stamourv: rudybot: doc string=?
16:57 rudybot: stamourv: your sandbox is ready
16:57 rudybot: stamourv: http://docs.racket-lang.org/reference/strings.html#(def._((quote._~23~25kernel)._string~3d~3f))
16:57 stamourv: DontChangeMyName: ^
16:57 DontChangeMyName: I got a list of strings and I want to compare those with a string a will input
16:58 DontChangeMyName: Im doing string->list the comparing char per char
16:58 DontChangeMyName: with recursion
17:00 stamourv: DontChangeMyName: `string=?' sounds like what you want.
17:00 stamourv: rudybot gave you a link to its docs.
17:02 DontChangeMyName: thanks guy I will try iy
17:04 DontChangeMyName: thank you again guys I just tried it it will save me lots of works
17:04 (quit) DontChangeMyName: Quit: Page closed
17:08 asumu: Demosthenes: did you mention wanting a parser combinator earlier or was that someone else?
17:08 asumu: Just so you know, there's a package "parseq" on planet with examples.
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18:03 RacketCommitBot: [racket] plt pushed 2 new commits to master: http://git.io/vtwKuQ
18:03 RacketCommitBot: [racket/master] ffi/unsafe: handle out-of-memory on malloc - Matthew Flatt
18:03 RacketCommitBot: [racket/master] fix sandbox parameterization order - Matthew Flatt
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18:28 Demosthenes: asumu: that was me
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19:26 RacketCommitBot: [racket] plt pushed 1 new commit to release: http://git.io/zW42iQ
19:26 RacketCommitBot: [racket/release] Fixed version of b9bd1db5. - Eli Barzilay
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23:02 RacketCommitBot: [racket] plt pushed 1 new commit to master: http://git.io/4SwrfQ
23:02 RacketCommitBot: [racket/master] adjust call to get-info/full so that it respects the contract - Robby Findler
23:04 Demosthenes: hrm, still looking for a relatively simple parser example...
23:05 asumu: Demosthenes: Did you look in parser-tools/examples? e.g. https://github.com/plt/racket/blob/master/collects/parser-tools/examples/calc.rkt
23:05 rudybot: http://tinyurl.com/3d42nf3
23:10 Demosthenes: that is a bit simpler
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