apeiros_ changed the topic of #ruby-lang to: Ruby 2.0.0-p0: http://ruby-lang.org (Ruby 1.9.3-p392) || Paste >3 lines of text on http://gist.github.com
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<zenspider> wow. active group today :/
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<boytoy> yes sir
* boytoy is now playing: BoyToy - Ruby Tune Tuesday - http://home.no/dwaynie/boytoy-ruby_tune_tuesday.mp3
<boytoy> it is tuesday today right?
<boytoy> *phew*
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<zenspider> thanks for sharing. :/
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<boytoy> zenspider: it's made using ruby
<boytoy> wish u'd like it though, ur approval means everything to me
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<zenspider> mmmm sarcasm
<boytoy> nah it kinda does i know who u are
<zzak> zenspider: youre going to windycityrails?
<boytoy> if it aint up to mear it simply means i gotta change
<boytoy> * if it aint up to par it simply means i gotta change
<zzak> zenspider: is it too late for CFP or lightning?
<zenspider> zzak: I am going to windycity. talking... but haven't figured out my talk yet
<zenspider> zzak: lightning should be scheduled there at the time
<zenspider> dunno about CFP. prolly still open
<zenspider> the conf isn't until aug or sept
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<zzak> i have to get some proposals together
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<zzak> ive got september open for that week, so maybe i will come check out your talk
<zenspider> any ideas what you'd like to watch?
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<zzak> zenspider: does it have to be rails?
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<zzak> zenspider: maybe speeding up rails tests, like avoiding the db, etc
<zzak> but thats probably a dead horse
<zzak> i havent been to any talks like that before tho, and id want to see some real solid use cases
<zzak> or do something on like emacs
<zzak> or some other bizarre toolchain you prefer over the more common ones
<zzak> like p4 haha
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<zzak> zenspider: also, "The call for speaking proposals has now ended. Our full speaker lineup will be announced in April." :/
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<nick1> Hello, I have no experience with ruby and I am trying to run this script
<nick1> I'm getting a cannot load such file (mechanize) error
<nick1> I understand that I need to install those dependencies listed at the top but I am not sure how
<nick1> (something to do with gem install XX command)
<zzak> nick1: do your homework
<nick1> zzak, it's not homework haha
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<nick1> zzak, do you mind helping me out?
<zzak> hint: mechanize is a gem
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<whitequark> yorickpeterse: no it is not possible
<whitequark> current
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<whitequark> *currently. I might want to change that.
<whitequark> re breaking up files. not sure. what would that give me?
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<zenspider> nick1: looks like you have to read the source to figure out the deps... kinda lame
<nick1> zenspider, I understand that I need to install those dependencies at the top, but how
<zenspider> looks like: (sudo) gem i mechanize highline
<nick1> are theyall from
<nick1> gem install XX?
<zenspider> not all
<nick1> I get errors when trying to do that.
<zenspider> see above
<zenspider> what sort of errors?
<zenspider> prolly don't have a C compiler for the nokogiri C extension?
<nick1> so I do not run 'gem install mechanize' ?
<nick1> It complains about my system PATH vars
<nick1> and says I could try a development kit, which makes me think I am doing something wrong
<zenspider> you can provide details, or I can walk away. your choice
<nick1> ..
<nick1> one moment please
<nick1> and thanks in advance for your help
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<nick1> zenspider http://pastebin.com/6nKVECBx I get an error, but this time it says success
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<zenspider> it says it succeeded for highline
<nick1> ahh, sorry I didn't realize it was installing two at once
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<nick1> do you think I need to edit my PATH variable?
<zenspider> so there is a binary install gem for nokogiri... but prolly not for ruby 2.0 (yet?)
<zenspider> so you'll need to install that devkit listed in the error message
<zenspider> that way you can compile your own
<zenspider> or... roll back to ruby 1.9
<zenspider> both options suck on windows... sorry.
<nick1> damn
<nick1> okay, i am downloading the dev kit now
<nick1> thanks again for the help
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<nick1> zenspider, this is what I receive now
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<zenspider> nick1: like I said... both options suck on windows
<zenspider> you'll have to follow that url and install libxml2
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<zenspider> minitest-debugger version 1.0.1 has been released! | software releases by ryan davis - http://blog.zenspider.com/releases/2013/04/minitest-debugger-version-1-0-1-has-been-released.html
<zenspider> minitest-excludes version 1.0.2 has been released! | software releases by ryan davis - http://t.co/TU53r59q3M
<zenspider> minitest-macruby version 1.0.1 has been released! | software releases by ryan davis - http://blog.zenspider.com/releases/2013/04/minitest-macruby-version-1-0-1-has-been-released.html
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<sent_hil> I'm having trouble em-websocket client example to work: https://github.com/igrigorik/em-websocket
<sent_hil> I keep seeing "oops", tried to debug it, got no error code
<sent_hil> I'm using ws://echo.websocket.org as example
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<sent_hil> Running ruby 2.0
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<zzak> zenspider: still around?
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<yorickpeterse> MORNING
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<judofyr> morning yorickpeterse!
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<judofyr> yorickpeterse: congrats on ruby-lint release
<yorickpeterse> :)
<judofyr> yorickpeterse: do you have a list of the linting that you do?
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<yorickpeterse> sort of, it's basically everything in lib/ruby-lint/analyze
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<judofyr> yorickpeterse: I'm surprised you didn't call it `lint` (following `parser` and `ast`)
<yorickpeterse> well, my gem was there first
<judofyr> yorickpeterse: also: ruby_object.rb:272:in `block in lookup': undefined method `lookup' for nil:NilClass (NoMethodError)
<yorickpeterse> plus I figured with all the other X-lint/Xlint Gems it would be a bit ambiguous
<yorickpeterse> judofyr: issue plox
<yorickpeterse> code snippet of what you're checking would also be very helpful
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<yorickpeterse> thanks
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<judofyr> yorickpeterse: is it fixed yet?
<judofyr> :D
<yorickpeterse> heh no, I'll get to it in the evening probably
<yorickpeterse> would be nice if I could somehow include information about the current AST node in generic stack traces
<yorickpeterse> that way it would be a lot easier to see where exactly it breaks
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<yorickpeterse> judofyr: also, thanks for giving it a try. I'm kinda amazed people know it's still there after not having a release for 6 months
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<ddfreyne> yorickpeterse: Cool, hadn’t heard of ruby-lint before. It crashes with undefined method `lookup' for nil:NilClass (NoMethodError) for nanoc though :)
<injekt> moin
<ddfreyne> judofyr: You do like templating engines, eh? :)
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<yorickpeterse> ddfreyne: see the issue reported by judofyr
<yorickpeterse> but do make a comment it also affects you
<yorickpeterse> That way people know they're not alone
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<ddfreyne> Yeah, it’s the same issue indeed
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<whitequark> yorickpeterse: lol +1 on lint suggestion
<yorickpeterse> meh, not going to rename it again
<whitequark> again?
<injekt> :D
<yorickpeterse> whitequark: it was initially called rlint
<yorickpeterse> but apparently there was already a Gem with that name
<whitequark> oh.
* whitequark is down to 39 failing tests in parser
<yorickpeterse> :D
<whitequark> 595 tests, 10516 assertions, 37 failures, 2 errors, 0 skips
<yorickpeterse> So I started work on using parser, I was amazed that removing my spec/ruby-lint/parser directory didn't even remove that many tests
<whitequark> (thank god I'm not using rspec)
<yorickpeterse> only about 40 specifications or so
* whitequark wonders if anyone is up to writing a ruby_parser compat layer
<whitequark> I'm sick of this parsing shit already
<injekt> lol
* whitequark conscripts inkjet!
<yorickpeterse> judofyr: ddfreyne: also, please do run ruby-lint on more production code. I've only tested it on what's in the spec/ directory as well as simple snippets
<yorickpeterse> (warning: expect a lot of "Undefined constants SomeModel" errors)
<whitequark> yorickpeterse: does it lint itself
<yorickpeterse> whitequark: most of it, yes
<yorickpeterse> as in, what I tested now works
<injekt> how meta
<yorickpeterse> hm, seems it's still a bit stupid with op assignments though
<yorickpeterse> `@foo ||= 10` "zomg, @foo doesn't exist"
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<whitequark> yorickpeterse: explodes with that lookup error
<whitequark> on parser
<yorickpeterse> heh
<yorickpeterse> comment on issue plox
<injekt> I get this: `initialize': undefined method `to_sym' for nil:NilClass
<yorickpeterse> injekt: issue plox
<injekt> yorickpeterse: version is 0.0.3 right?
<injekt> latest
<yorickpeterse> yes
<injekt> the exception is coming from the ast gem it appear
<injekt> s
<injekt> I'll fine on ruby-lint nonetheless
<injekt> file*
<yorickpeterse> I've had those errors before, it's most likely related to my own parser being stupid
<yorickpeterse> basically it will use `nil` as the name of the node
<injekt> cool ruby-lint uses slop!
<yorickpeterse> :)
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<whitequark> hi mbj
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<judofyr> ddfreyne: re: template engine. ehm, yes, why are you mentioning this now? :P
<mbj> whitequark: hi
<mbj> whitequark: mutant is green again, a precondition to port it to your parser.
<whitequark> nice
<mbj> whitequark: Still busy, but about to do the last stuff for my current client.
<ddfreyne> I would love to spend some more time writing parsers
<ddfreyne> I’d love to start working on my own programming language again…
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<ddfreyne> But yeah, TOTAL lack of time :(
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<mbj> whitequark: Are you getting payed while working on parser?
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<whitequark> mbj: yeah, it's a part of foundry
<yorickpeterse> Today I used #each_with_object
<yorickpeterse> I'm not sure who suggested it again but I love it
<yorickpeterse> so thank you
<whitequark> yorickpeterse: thanks for not abusing inkjet
<yorickpeterse> giggity
<ddfreyne> yorickpeterse: inkjet did I think… but I also recommended not using #inkjet for that
<mbj> yorickpeterse: yeah each_with_object is nice, and also easier to use than #inject / #reduce. I always mix up the accumulator position in the block.
<ddfreyne> They both have their uses
<mbj> With #each_with_object it is pretty obvious the "object" is the last block arg.
<judofyr> I still feel #each_with_object is too long
<ddfreyne> I think it’s easier to understand #inject if you start writing a function using explicit recursion with an explicit accumulator argument, and then move to higher-order functions (which is what inject is)
<mbj> I try to use inject / reduce *only* if the accumulator object is "new" for each iteration.
<ddfreyne> mbj: Good, because that is the way it is meant to be used :)
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<yorickpeterse> also, a common thing I do is "remapping" existing data sets as following: http://pastie.org/7702135
<yorickpeterse> This works due to objects being passed as references, but it's meh
<yorickpeterse> However, creating an entire copy of the enumerable is also meh
<yorickpeterse> Any suggestions?
<ddfreyne> yorickpeterse: Hmm, what’s wrong with just #map ?
<ddfreyne> Do you want to modify the originals or just return a changed array?
<injekt> INKJET
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<yorickpeterse> ddfreyne: yes, generally I add some extra field to it or modify an existing one
<ddfreyne> yorickpeterse: #map! ?
<yorickpeterse> a common use for me is that I aggregate raw data and then do some processing in Ruby (e.g. add an associated name)
<yorickpeterse> ddfreyne: creates a new dataset
<judofyr> yorickpeterse: #each returns self
<yorickpeterse> I don't really think there's a way around that but I'm not a fan of creating basically a copy of the entire set but with an extra field
<ddfreyne> yorickpeterse: Ruby 2.0’s #lazy maybe
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<ddfreyne> :o
<ddfreyne> nanoc has 97% code coverage apparently, nice
<whitequark> yorickpeterse: ddfreyne: #lazy allocates a stack
<whitequark> 4K plus some bookkeeping
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<yorickpeterse> plus we don't use Ruby 2.0 yet
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<charliesome> whitequark: it's worth it though
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<whitequark> charliesome: what exactly
<charliesome> whitequark: the overhead of lazy enumeratora
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<whitequark> charliesome: you're not going to do it in a tight loop
<whitequark> ...
<whitequark> well
<whitequark> this is ruby anyway, who the fuck cares
<whitequark> /ragequit
<charliesome> does ruby have any tight loops
<charliesome> i'd argue nearly every ruby loop does far too much to be considered tight ;)
<whitequark> exactly
<charliesome> meh, most of the time i don't really care
<charliesome> if i'm doing something heavy on the cpu then i'd prefer to write it in ruby and wait a bit longer
<whitequark> a language is judged by its edge cases, not common ones
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<whitequark> "few projects achieve 1MLOC, but if it's still usable, that's hell of a good language"
<whitequark> shitty analogue but you get the idea
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<charliesome> brb
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<PigDude> Which breaking changes, if any, does Ruby 2.0 introduce for Ruby 1.8.7 code? I've researched this and found some small things, but no detailed list.
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<mbj> PigDude: You run code that was written for 1.8.7 under the 2.0.0 mri?
<PigDude> mbj, no
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<injekt> zenspider: thank you for flay
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<banisterfiend> zenspider: u here?
<banisterfiend> i have an emacs Q
<banisterfiend> or anyone here hwo's ok with elisp?
<injekt> might be a little early there ~7am
<banisterfiend> ah
<injekt> dominikh is good with that stuff
<banisterfiend> dominikh: ping :)
<injekt> he's probably asleep too, it is like 3:45pm there
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<PigDude> mbj, /wc
<PigDude> oops
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<dominikh> injekt: no, I was in uni
<dominikh> from 8 to 6...
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<injekt> dominikh: long day for you!
<dominikh> fuck yes it was. I got up at 5 and am still not home :-P
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<injekt> :D
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<yorickpeterse> whitequark: is it possible to have parser use a custom AST node or do I have to monkey patch Parser::AST::Node?
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<yorickpeterse> whitequark: also, why does Parser create symbols for identifiers?
<mbj> yorickpeterse: Wild guess, to save some memory?
<mbj> yorickpeterse: Symbols are basically a string constant pool.
<yorickpeterse> not sure if it would actually save memory
<mbj> I think the implementations create a symbol for most of the identifiers anyways?
<yorickpeterse> whitequark: also, the way parser treats block parameters in method calls is really weird
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<yorickpeterse> block(send) instead of send(..., block)
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<zenspider> banisterfiend: what's up?
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<banisterfiend> zenspider: i figured it out in the end, i was just looking for a way to get (interactive ...) user input primed with a string (like the pwd) that the user could either accept or modify
<banisterfiend> zenspider: i went with: (interactive (list (readd-string "File to create:" default-directory)))
<banisterfiend> err, read
<zenspider> tab completion?
<zenspider> poke at completing-read iirc
<banisterfiend> im not sure if it has tab completion
<banisterfiend> ah cool
<banisterfiend> zenspider: i just wanted a way of being able to easily add files while i was messing around in dired, like i can with directories (using +)
<zenspider> if you want actual pwd... I think ... I don't remember... I thought there was something better. poke down find-file or find-directory
<zenspider> oh. yeah. or dired
<banisterfiend> default-directory seems to be pwd
<banisterfiend> is that not realiable?
<zenspider> no, I assumed you were asking the user for a directory or somesuch
<zenspider> if you want it to exist and be tab completable, there's options
<banisterfiend> zenspider: here's the full code i ended up with https://gist.github.com/5447027
<banisterfiend> it also refreshes the dired buffer so the files appear right away
<banisterfiend> not sure if it's the best way to do it, re shelling out
<banisterfiend> but i couldn't find a way to just create a file in elisp without having to mess with buffers which i didnt need
<zenspider> ah. cool.
<zenspider> I'm surprised that doesn't exist
<banisterfiend> it might do, but everything file related i found was all bound up with buffers
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<zenspider> there's a dired touch, but that's only for extant files
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<zenspider> huh... learn something new about emacs every day
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<Hanmac> fine you guys you broke pkg_config from mkmf in ruby trunk
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<zzak> only 18 minutes left for EuRuKo!
<zzak> zenspider: banisterfiend you guys need to vote!?
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<yorickpeterse> http://cfp.euruko2013.org/proposals/17 don't forget about this one :)
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<zzak> yorickpeterse: haha! i already voted for that one
<zzak> ;)
<Hanmac> zzak: about 80: "what that ~20MB of code in your Ruby installation is there for" ... haha, some of my gems are bigger ;P
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<zzak> :D
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<banisterfiend> zenspider: what setup do you use for rails dev? rinari or something else?
<Hanmac> banisterfiend: they broke mkmf and pkg_config for C++ gems ... that makes me sad
* banisterfiend never written a c++ gem :)
<Hanmac> i use them for my GUI stuff
<banisterfiend> :)
<banisterfiend> poor you
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<Hanmac> no its cool, the only bad thing is that they broke it a few days ago
<Hanmac> it was nobu, the great Broker ;P
<banisterfiend> Hanmac: file issue bb
<Hanmac> i already filed it
<banisterfiend> nice
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<jaimef> what does a double bang do? e.g. !!@hide_if_empty
<jaimef>
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<GarethAdams> jaimef: the same as a single bang, but twice
<jaimef> double not?
<jaimef> interesting
<tylersmith> it's an easy way to coerce to a boolean
<tylersmith> !!"pizza"
<GarethAdams> >> !!"pizza"
<eval-in> GarethAdams => /tmp/execpad-05715f68e2bb/source-05715f68e2bb:2: warning: string literal in condition ... (http://eval.in/17308)
<tylersmith> it warns but it works
<tylersmith> >>!!5
<eval-in> tylersmith => true (http://eval.in/17309)
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<drbrain> you should never need to use !!
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<lianj> >> !!!false
<eval-in> lianj => true (http://eval.in/17312)
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<jaimef> is there a simpler way to write this? https://gist.github.com/178dee158ac448dc6d6d
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