apeiros_ changed the topic of #ruby to: Ruby 1.9.3-p286: http://ruby-lang.org || Paste >3 lines of text on http://gist.github.com
<xbayrockx> lol
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<bobajett> Spooner: thanks! Though I wonder what is Ruby trying to parse that as - I mean why is it expecting a tSTRING_BEG or do or { (
<Spooner> bobajett Or with: file = ARGV[0] || raise("bleh") - joys of parsers not knowing what you mean, eh?
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<bobajett> I wonder if JRuby does the same.
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<Spooner> It will be the same, bobajett.
<bobajett> Spooner: cool, thanks!
<Spooner> The ability to avoid using parenthesis is nice, but you end up getting bitten by it if you are half asleep ;)
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<swarley> wooo, this parser should take about 5 days to write..
<Spaceghostc2c> swarley: With sleep?
<swarley> More or less
<Spaceghostc2c> :D
<swarley> It's all state based
<swarley> so
<swarley> Lol
<swarley> based on the current character and the lexical stack, do foo..
<swarley> etc
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<swarley> the only weird problem i've had so far has been the segfault produced by this
<swarley> rb_funcall(rb_cObject, rb_intern("puts"), 1, rb_str_new2("unknown character"));
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<swarley> i think when I code the actual interface for getting the values, I'm going to allow for ranges and stuff for value matching
<swarley> yeah, that's a neat convenience function
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<swarley> I was thinking the following as the syntax (comments welcome)
<swarley> xml["p", :class => /(hello|world)/, :some_other_attribute => "exactly this", :enumerable_attr => 1..19] # This syntax for immediate level selection, the first argument "p" being the tag name, and the hash being specifiers
<swarley> xml%["p", :class => /(hello|world)/, :some_other_attribute => "exactly this", :enumerable_attr => 1..19] # Simulates the same syntax, but effectively does the same as */ in xpath, allowing multilevel searching in the xml
<swarley> notice the % is the real method in there
<dpatel> when i'm calling samplehash.except(:id).each_page do |key,value|, key is returned as a string which causes the except function to return id, is there another way to make it work rather than putting "id" in the except call, as I'm planning on using an array of values to exclude
<Spooner> swarley : I'd asy :class => %w{hello world} instead.
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<jamesaxl> hi
<swarley> Spooner; well, that was just an example
<swarley> There will be handlers for per data type handling
<jamesaxl> please what's the technique that you use for wrapping Gtk , Qt etc
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<swarley> i.e if x =~ given if the given type is a regex etc
<Spooner> jamesaxl : Either ffi or c-extension.
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<Spooner> jamesaxl : There are gems, but they are ages out of date, which I assume is why you want to wrap them yourself.
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<Spooner> swarley : Yes, but if the only regexps you expect are lists, you might as well just take in an Array of strings.
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<swarley> Spooner; but what if the user wants something like
<Spooner> Or is there a use case for /^frog_/ to get all tags starting with frog_?
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<swarley> /id[0-9][a-G]/
<Spooner> Ah, OK.
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<swarley> And then, I was going to have just xml["tag"] return the element array
<swarley> Well, it'll be something like Suwarui::XML::ElementCollection or something
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<swarley> that way you can chain calls with []
<Spooner> Why not an Enumerator?
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<swarley> Because I'd have to monkey patch it
<swarley> It
<Spooner> Not sure why you would.
<swarley> Because the call to [] would have to call the method that searches the elements
<jamesaxl> Spooner, i want to wrap GTK3 that's why
<arietis> what's gem name of zip/zip module?
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<swarley> zlib
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<Spooner> arietis : Ask google "ruby zip gem" - not hard.
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<Spooner> Oops not gem, stdlib module. *looks silly*
<swarley> but yeah Spooner, should calling the [] method on a Suwarui::XML::Document return a ruby structure with the hierarchy, or should it be a class that can use the same [] method
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<Spooner> jamesaxl : Well, ffi is relatively easy. You could wrap i tin a c-extension manually or with something like rice or swig. The options are many...
<arietis> Spooner: there are no such module in stdlib -.-
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<Spooner> arietis : No, swarley said that zlib is the stdlib one. I suggested there were also several gems that supported zipping.
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<arietis> Spooner: ah, well, rubyzip seems to be the one i need :)
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<arietis> i just don't get why it's imported as zip/zip
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<Spooner> swarley : No reason you can't return something that can both be an enumerator and offer [] (since this this case, [] is effectively like select, not index).
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<Spooner> *since in this case
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<jamesaxl> Spooner, thanks
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<Spooner> arietis : Because it is. You are right, though, it does seem unnecessary to have zip/zip.
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<swarley> well, [] is effectively 2 methods, and then it is a third when it goes to a element collection
<Spooner> jamesaxl I think you'd make a lot of people happy if you made a nice wrapper around the current gtk. We don't have any up-to-date GUI libraries to my knowledge.
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<Spooner> jamesaxl : Unless you are prepared to accept Rails as a frontend to a desktop app :D
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<Spooner> swarley : Hmm, I think making #[] into a lazy enumerator would work fine. You can always to_a if you just want an array out of it.
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<swarley> hm, i suppose so
<arietis> i get OpenSSL::PKCS12::PKCS12Error: PKCS12_parse: mac verify failure
<arietis> does it means i'm using wrong passphrase?
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<Spooner> swarley : In fact, xml%["p", :class => /(hello|world)/, :some_other_attribute => "exactly this", :enumerable_attr => 1..19] => xml[:p].class(/(hello|world)/).enumerable_attr(1..19) feels even more rubyish ;)
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<swarley> the only thing i don't like about the second one is that it would require a very very large amount of methods created dynamically
<swarley> especially if you're dealing with a large HTML file
<Spooner> But I have to reiterate, that whatever the API, I am not sure why you can't just wrap an existing lib with a nice API.
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<swarley> Because I'm difficult
<Spooner> swarley : Sorry, why a lot o methods?
<swarley> and have to much time
<arietis> oh, it's cause i need binary mode
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<Spooner> I have too much time, too, but I get nothing done. And when I do, it never works and then I give up.
<swarley> Spooner; because if you are going to do a .method for every xml attribute in a tag, the methods you'll have in each tag will pile up quickly
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<swarley> especially if someone goes event attribute happy
<swarley> I suppose it could be evaluated dynamically with method_missing though
<swarley> But that's still heavy with meta programming
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<Spooner> I didn't suggest that. How your elements work isn't really anything to do with how the searching is done, does it?
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<Spooner> *is it?
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<swarley> Well, an element is going to be a glorified Struct
<Spooner> As I have stated before, though, I haven't spent any real time with XML pathsearching, so maybe I'm missing key things.
<swarley> Well when i say :class
<swarley> that's an example of an attribute
<Spooner> swarley : Yep.
<swarley> <xml attr="hi"
<swarley> invalid xml i know blah blah blah
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<swarley> but if its random XML, it can have any number of attributes
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<Spooner> Oh, I see. Yes, #class doesn't make sense does it, since class is just an attribute. xml[:p].with_attribute(:class => /me|he/) makes more sense then, I suppose.
<swarley> Yeah
<Spooner> Though I can see class and id being special cases with shortcuts.
<swarley> That would make sense
<jamesaxl> Spooner, i'm going to do my best :)
<Spooner> Ack, now it looks like Rails 3 ;)
<swarley> The reason i like the hash style, is because it integrates well with HAML syntax
<jamesaxl> Spooner, i'll mange god willing, it is god to make people happy
<jamesaxl> it is good to make people happy
<swarley> %body{:id => "this_id", :class => "the_class"} content
<Spooner> swarley : Yeah, I prefer slim, but there you go (body id = "this_id" class = "the_class")
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<Spooner> Oh, actually, I don't think you can put spaces around the = in slim.
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<Spooner> But my suggested syntax still uses a hash.
<swarley> well, either way. It looks more natural to use the "smart" syntax
<swarley> After i finish the parser I can do more work with the interface
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<swarley> does anyone know off hand if <xml attr = "value"> is value?
<swarley> errrr
<swarley> valid*
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<swarley> Woo, two syntax characters down..
<swarley> lots more to go
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<gkwhc> Hi, im trying to install a gem called pg. However it complains of lack of necessary libraries/headers. Any ideas? (i know i encountered this when install gem for mysql..i had to install mysql first then install the gem)
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<sent-hil> gkwhc: is that postgresql
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<gkwhc> sent-hil: ah yes! however there seems to be many postgresql packages...like dovecot, mysql, qt, etc...i am a bit confused
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<wwoodrum> spoooonnnerrr are you up?
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<ddd> he's whispering softly in the wind
<wwoodrum> well thats okay i gues
<wwoodrum> i need help with fibonacci again. I called out my professor and he changed the requirements lol
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<wwoodrum> hold that thought dog needs outside
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<swarley> oh yeah, i'm writing this library because its going to be the best library ever and everyone and their mother is going to use it and i'll get all the money and the wimminz
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<Spooner> swarley : I had wondered :D
<swarley> well now you know
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<swarley> it has nothing to do with me having two half days in a row
<swarley> nothing at all
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<swarley> I'm halfway afraid to put this on github
<Spooner> Because it would make all the other projects look a bit flat?
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<swarley> because, nenolod doesnt like me, at least, the last time he was around and a CIA bot announced a project i was working on i was begged never to program again
<swarley> so, i can only imagine what this would incur
<swarley> I should make a wrapper like this for SQLite as well
<Spooner> Why do that? Why not develop your own DB while you are on a roll? ;)
<swarley> xD
<swarley> because i have no idea how :p
<swarley> Never considered DB theory
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<wwoodrum> ok back. hey spooner :)
<Spooner> Hey wwoodrum! School getting you down?
<wwoodrum> so what i have a question about is.. now the professor wants to enter an integer to STOP the fibonacci
<wwoodrum> for ex. when he types 21. he wants 0 1 1 3 5 8 13 21
<wwoodrum> yeh alittle bit. jsut confusing professor
<Spooner> That is fine and easy with your code, if I remember.
<wwoodrum> yeah i added
<wwoodrum> if vals.last >= num then
<wwoodrum> inthe method
<Spooner> You just return the array, instead of its last element.
<wwoodrum> but it doesn't seem to work.
<swarley> mmm recursion
<swarley> wait
<wwoodrum> so return vals until vals >= num?
<Spooner> Oh, the highest fib <= a number? Well, it is a different spin.
<swarley> if vals.last >= num then
<swarley> end
<swarley> that doesnt do anything
<wwoodrum> yea
<wwoodrum> :/
<Spooner> It is doable without a huge change. I guess the prof thought everyone was just using the standard solutions and slacking it.
* swarley goes off to see how he can do this in less than 100 characters
<wwoodrum> well i asked him, then he just reverted to using only ints. cause remember he wanted floats
<Spooner> Oh yeah, that made no sense at all. I'd forgotten about that.
<wwoodrum> i also have put 50.time do in my main script cause idk how to times until fib(n) >= num
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<Spooner> No, if you put out 50 times, you'll have about 300 numbers printed out.
<wwoodrum> lol yeah i saw that
<wwoodrum> i just want it to stop when it reaches num. any ideas?
<Spooner> Well, you can't just do (n-1).times you need an infinite loop (loop do...end).
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<Spooner> And return when you get the required result. Any more and I'm doing it for you ;)
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<wwoodrum> hah okay i'll try some more stuff but i only have 1.5 hrs left =[
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<swarley> =] def fib(n);return (n<2)?n:fib(n-1)+fib(n-2);end
<Spooner> swarley : That is a) normal fib, not what is required and b) perhaps the most naive implementation in the universe ;)
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<swarley> Spooner; :p
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<swarley> lol
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<swarley> Spooner;
<swarley> i just thought to myself
<swarley> i can see how that function can be stupid
<swarley> but what if i try it in haskell
<swarley> where you use the hell out of recursion
<swarley> So, I opened up ye old ghci
<Spooner> It works in languages with memoing.
<swarley> nonono
<swarley> just wait
<swarley> i wrote a little implementation using a guard
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<swarley> pretty basic
<swarley> Prelude| let fib x
<swarley> Prelude| | x < 2 = x
<swarley> Prelude| | otherwise = (fib x-1) + (fib x - 2)
<swarley> and i evaluated fib 50
<swarley> well, about 6 seconds in i think, well its just not going to work
<swarley> i start to move my mouse
<swarley> Surprise!
<swarley> mouse doesnt move
<Spooner> Yeah, it just super-exponentialises ;)
<swarley> So i enter tty1
<swarley> start typing as fast as i can
<swarley> my computer heating up *fast*
<Spooner> Ha!
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<swarley> login, and kill -9 ghc and get an acpi reading just in time to see 212 degrees F
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<swarley> moral of the story
<swarley> don't fuck with something that you know is already a bad idea
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<Spooner> I'm surprised it was that bad.
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<swarley> So am I to be honest
<swarley> Probably because of the concurrency
<swarley> and wanting to do everything at once
<swarley> what was I doing? right, xml library
<Spooner> Hmm, "fib_rec(40) involves c(40) = 331,160,281 calls to the fib_rec" - I guess that would grind a little ;)
<jrajav> swarley: Other moral of the story: You need WAY better power management
<swarley> jrajav; other moral of the story is that i should never get an AMD again
<jrajav> Haha yes.
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<swarley> i swear, i regret that decision every day
<swarley> I'm always like, i should have gotten an i3 for $50 more
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<jrajav> Intel, Nvidia, and Asus
<jrajav> Never disrespect the Holy Trinity
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<swarley> yeah i have the anti christ
<swarley> ATI, AMD, HP
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<jrajav> Holy crap dude
<swarley> yeah, its all sorts of fucked up
<swarley> i hate my computer
<jrajav> Like'
<jrajav> That was my honest reaction
<jrajav> lol
<swarley> lol
<jrajav> How on earth
<jrajav> Did you land that
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<swarley> My dad got it for me
<swarley> he thinks he knows more about computers than i do
<swarley> so... he took the liberty to pick it out
<jrajav> You need to sit him down
<jrajav> And give him a heart-to-heart
<jrajav> About the... bits and the b-trees
<jrajav> I guess
<swarley> I want, an ASUS/Dell i5 with a good NVidia
<Spooner> wwoodrum : Getting anywhere?
<swarley> the american dream
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<jrajav> Dell? Dude you don't need more than Asus
<wwoodrum> closer to suicide
<jrajav> And a box with roughly six sides
<swarley> Yeah, Dell is a bucket dream
<jrajav> And holes to screw stuff in
<swarley> jrajav; well i'm thankful for this piece of shit laptop
<swarley> because
<swarley> the only other computer i have
<swarley> and prepare yourself
<jrajav> emachines?
<wwoodrum> ice tried looping until... then i just end up with endless loops :/
<swarley> 1998 PII HP i dont even know the model, 6GB hdd, 128mb RAM and 2 USB ports
<swarley> i've been compiling my gentoo kernel on it for 5 days now
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<jrajav> Well that's at least got some kind of retro kitsch to it
<swarley> waiting for the modules to finish
<swarley> The thing is
<swarley> its not even a nice retro computer
<swarley> its a shitty one
<swarley> the CD drive protector is held on by tape
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<wwoodrum> @ Spooner, if you can help he finish this i'll be forever in debted to you
<nvictor> hey guys
<swarley> ohi
<nvictor> ohai swarley :>
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<nvictor> when gem list displays a name with two versions (version1, version2) does that mean that both are installed ?
<Spooner> wwoodrum : I can give you the solution, but I think dragging you into doing it yourself might be hard work. Where are you up to now?
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<wwoodrum> well i keep trying different ways but keep eding up with error or it doesn't work as it should. so I go back to the orginal code which actually works. it just doesn't give the output i want.
<Spooner> wwoodrum : Well, do you know what you want out of it. That can help.
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<wwoodrum> I have the fibonacci sequence down, itll times by whatever i put in. I just want it to stop when the fibonacci number is equal to or greater than the integer I input
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<Spooner> Yeah, so keep adding to the array until the number you are going to add is > limit and return it. Not as hard as you are envisioning it, I suspect.
<wwoodrum> puts "\n enter a number integer or float to calculate the Fibonacci sequence"
<wwoodrum> is in main script
<Spooner> Yeah, that isn't really relevant, is it?
<wwoodrum> can i implement num in the above method
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<Spooner> Yeah, just return an array rather than the last number.
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<Spooner> By the way, what sort of course is teaching people Ruby? I know it is ace, but I can't see it actually replacing the Holiness that is Java for CS101 ;)
<wwoodrum> security script programming
<wwoodrum> ISA
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<wwoodrum> i guess for metasploit
<Spooner> Yeah, I thought that.
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<wwoodrum> in the main script what should i use for the .times?
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<Spooner> I already told you. You don't know how many times you need to get the next value, so you need an infinite loop.
<wwoodrum> hmmm ok
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<Spooner> Or, at least, not a loop based on iterating. You could use while/until or loop do, depending on your algorithm.
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<Spooner> No, you don't want to do that. That means you have to calculate the entire sequence every time. You don't need to change the test loop. Only the loop in your method.
<wwoodrum> so like... do until vals >= num.to_i?
<wwoodrum> in the method
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<Spooner> wwoodrum : I assume this is what you want? Just to check that we are on the same page.
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<wwoodrum> ?
<Spooner> Oops, forgot to actually paste :D http://pastebin.com/TgRRu3Xd
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<wwoodrum> i guess?
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<Spooner> I don't know. You should know ;)
<wwoodrum> im not sure how to read that lol
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<Spooner> Oh, it is "n: result" from -1 to 25.
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<wwoodrum> what i want is when the program starts the unser inputs a number.
<wwoodrum> lets say
<wwoodrum> 25
<wwoodrum> it does fibonacci until the number is greater than or equal to 25, then the program ends
<Spooner> Yes, but I'm showing you the output for all numbers, so you can see them all. I could test manually with every number, but that isn't terribly useful for testing purposes.
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<wwoodrum> ohhh
<wwoodrum> okay i see it now.
<wwoodrum> yes thats what i need
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<Spooner> Yes, you could just leave your original #fib method and alter the loop after the user enters their request. It would be crazy inefficient, but you want to get it done, not done "properly" ;)
<wwoodrum> yeah thats the problem i have now is the loop.
<wwoodrum> now i can't get it to run at all
<wwoodrum> just keep getting errors
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<Spooner> Yeah, you are referencing vals outside the method.
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<Spooner> And in any case, it is an array, so not comparible with num.
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<Spooner> And loop do isn't the same as times, so you don't get a number out of it (so no |n| - you'd have to add one to n in every loop).
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<wwoodrum> so do i put the loop in the method?
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<wwoodrum> can you even do that?
<Spooner> Well, it depends. It is considerably easier to leave the method as it was before and change the lower code, so I think that makes more sense, even though the result would be inelegant.
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<wwoodrum> im not even sure what code to use on the bottom anymore cause when i use XX.times |n| it doesn't stop it just keeps going until XX is reached
<horsey> where does rbenv store the source?
<Spooner> Move to PM. #ruby doesn't need this ;)
<horsey> for rubys it installs
<Spooner> @ wwoodrum ^^
<postmodern> horsey, rbenv uses ruby-build to download/compile them
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<postmodern> horsey, by default ruby-build deletes the source
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<postmodern> horsey, you'd need to run `rbenv install --keep ...`
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<postmodern> horsey, also you can set $RBENV_BUILD_ROOT for where the source should be downloaded to
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<swarley> I'd say i was productive for the night
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<scx> what is good IDE for Ruby and RoR with working autocomplete code feature?
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<eph3meral> scx: one that you like
<scx> i mean Netbeans have autocomplete feature for Ruby but it isn't good
<eph3meral> scx: I love vim, as do many others - but it's admittedly not for the faint of heart
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<scx> Eclipse (RadRails 2 or Aptana with RadRails 3) doesn't have working autocomplete feature for Ruby at all
<swarley> sweet, and the code builds for tonight
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<eph3meral> radrails is defunct for that matter, i believe
<eph3meral> aptana is defunct even, I think, for that matter
<eph3meral> scx: eclipse does have the Ruby DLTK but it doesn't integrate with projects very well, much less with rails
<horsey> swarley: what are you working on?
<scx> NetBeans dropped suppord for Ruby since 7.x
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<eph3meral> scx: yeah, it's kind of surprising IMO
<eph3meral> but, oh well
<eph3meral> scx: in my (not so) humble opinion, most people who think they want an IDE just haven't used a good text editor, and by a good text editor I mean vim :P
<eph3meral> emacs qualifies though
<eph3meral> different strokes for different folks
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<eph3meral> scx: Notepad++ is a decent option on windows, and it's equivalent, Scite on Linux
<eph3meral> scx: lots of people like Sublime Text 2
<eph3meral> scx: take your pick
<scx> eph3meral: vim isn't for me
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<eph3meral> scx: I highly recommend giving one of either (or really both of) vim and emacs a try
<eph3meral> scx: so you might prefer emacs
<Quadlex> Metaprogramming is hard 0.o
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<swarley> horsey; a more ruby oriented xml parser
<scx> eph3meral: Notepad++ is simply text editor: doesn't have integration with git, mylyn (bugzilla), code autocompletion, code tips, debugger, etc
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<eph3meral> scx: emacs and vim both do
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<eph3meral> scx: although to be fair, vim at least doesn't have "auto" completion, but it does have completion
<scx> eph3meral: i know, but i just dont like vim (and emacs)
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<eph3meral> scx: k, well… good luck finding something that has an equivalent feature set that doesn't suck as hard as Netbeans/Eclipse
<eph3meral> scx: and as far as ruby goes, there are really no debuggers at all
<eph3meral> scx: if you find a good one, please let me know
<scx> NetBeans 6.x was fine... for Ruby 1.8 and Rails 2.x
<eph3meral> i've been meaning to write a DBGp crossplatform GUI
<eph3meral> scx: eh, yeah possibly, I haven't used 2.x or 1.8 in years though
<scx> i am looking for something similar for Ruby 1.9.x and Rails 3.x
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<eph3meral> scx: it doesn't exist
<eph3meral> sorry to be the bearer of bad news, but… not really
<horsey> swarley: like Hpricot?
<scx> I heard about RubyMine and InteliJIDEA but I never use them
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<Spooner> Scx I use Rubymine a lot. It is good, but not very free ;)
<Spooner> But you can easily get a free license if you are workong on opensource only.
<Spooner> *free opensource
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<Quadlex> I really dig RubyMine
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<scx> Spooner: i can pay but i don't want to waste money for another "nearly working" solution
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<Spooner> scx There is a 30 day trial. It wouldn't take long to see if it fullfilled what you required of it.
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<Spooner> I like that it knows about Ruby, for example, rake and bundler are integrated, which I'm doubting in more general IDEs would be there.
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<Quadlex> One thing I've found about it, however, is that it can get confused if you add a new SDK and don't restart it
<Quadlex> So if it stops being able to navigate your code, it's trying to do so with the wrong SDK:P
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<Spooner> I'm guessing you don't add new SDKs every 10 minutes though, Quadlex.
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<Quadlex> No. But it's something I've done a couple of times
<Quadlex> And forgotten each one
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<scx> Spooner: Have you used IntelliJ IDEA too?
<Spooner> scx Nope.
<Spooner> I generally use Notepad++ for non-project files and I tried stuff like Eclipse, but that was years ago and I hated it.
<scx> ok, thanks for suggestion
<Spooner> scx And if it matters, I haven't paid for it. I have the free opensource license ;)
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<gkwhc> anyone use redmine here?
<jrajav> Notepad++? Do yourself a favor and try Sublime Text
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<jrajav> I'd suggest vim but I do not sense the force in you
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<gkwhc> ...uh
<schleppy> I am not a ruby dev - far from it.  But I need to do a little maintenance on a rails site.  Specifically using RPH Navigation. https://github.com/rpheath/navigation
<schleppy> I am trying to figure out the correct syntax to add a sub_menu item, within a conditional on the main item.
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<Spooner> jrajav : The free edition of sublimetext does nothing, bnut the free edition of Notepad++ works fine. I'll stick with the latter ;)
<jrajav> gkwhc: That was for Spooner not you ;P
<jrajav> The free edition does nothing? .. What?
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<Spooner> I mean it isn't free. I was convoluting.
<jrajav> Well, you're not supposed to, but nobody's gonna stop you
<jrajav> (It's a little weird like that)
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<jrajav> i.e. it's payware but has an unlimited unrestricted trial
<Spooner> If something free works fine for 50 line scripts, why change? I use rubymine quite happily (and free) for anything of any size.
<jrajav> I guess whatever works for you
<jrajav> It's good to get familiar with something efficient and powerful, though
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<Spooner> I've never had much truck with the vim-style "remember 100 key combinations to do anything you possibly could desire", I'm afraid.
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<jrajav> Which is precisely why I didn't suggest vim :P
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<jrajav> You can drag and drop something into Sublime Text, click somewhere, mash a few keys, and Ctrl-S
<jrajav> And it won't complain even the tiniest bit
<Spooner> Like in Notepad++ then? :O
<jrajav> And you can *also* use any of its extremely powerful built-in commands or hundreds of plugins
<jrajav> It's the best of both worlds
<jrajav> It's also hella sexier than Notepad++
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<jrajav> Reason enough right there
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<Spooner> It wouldn't be too hard.
<Quadlex> Why is it that assert_equal is passing ENV to an equals method I'm testing?
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<swarley> i only remember 20 vim keys
<swarley> but i still use it
<swarley> anyways, night
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<schleppy> I am using RPH navigation for rails.  Part of the parameters passed into creating a menu item includes a callable, like :path => :foo, where foo is a method in scope.  If I want to change foo to take params, how does my argument being passed change (ie. how does :path => :foo change)
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<sayuj> hello
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<sayuj> How can I rescue "IOError (closed stream)". ie. I want to rescue only when the message is 'closed stream'
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<burgestrand> sayuj: rescue it, and re-raise it if the message does not match your expectations
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<burgestrand> sayuj: or write your own class to use in the list of rescue exceptions, ruby uses === for comparison
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<sayuj> I can match the messages. I think it's not safe.
<burgestrand> It’s probably not.
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<sayuj> I have same situation with Thrift::TransportException. there I use Thrift::TransportException::END_OF_FILE to compare with e.type.
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<sayuj> burgestrand: is IOError has any constant to check the eoor type?
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<dmiller> hey #ruby, what exactly is a "long" in ruby? I'm working with some mighty big numbers (50+ digits) and keep running across errors where BigNum can't be converted to Long ... but what is a Long?
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<Mon_Ouie> A C data type. Some functions need to convert Ruby integers to C native integers, and can only do that within certain bounds.
<Mon_Ouie> What kind of functions give you such errors? Most regular math function should be able to deal with bignums just fine
<dmiller> Mon_Ouie: Well I've been trying to use this number as an "index" so I have $giantnumber => "some value" as a hash
<dmiller> or an array, more precisely
<Mon_Ouie> Well, with an array that big, you'd run out of memory anyway
<Mon_Ouie> Hashes and arrays are completely different data structure
<schleppy> Is there any way to access `group` within `relpath` in this snippet?
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<schleppy> if the answer is to pass `group` to `relpath` then can you explain the syntax change for :path => :relpath?
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<Mon_Ouie> Arrays don't have keys, but indices, and the greatest indices you can use is determined by the array's size. If you want to set an item at index n, you need an array of size n+1.
<Mon_Ouie> Which is whole lot of memory in your case
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<dmiller> Yeah it's a giant data set.
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<Mon_Ouie> You mean you *do* need to store a value for every integer up to 10^50 ?
<Mon_Ouie> (starting from 0, I mean)
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<dmiller> Mon_Ouie: I have a giant array that I am serializing to a flat string, or maybe even number.
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<dmiller> preferably number because I can then use an array
<dmiller> which in my tests is much more efficient than a hash
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<dmiller> I want to be able to serialize my giant array, and retrieve some meta-data about it that I would store in this array
<dmiller> but I can't figure out a way to serialize the array efficiently enough =\
<schleppy> anyone?
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<Mon_Ouie> You're missing the point that unless you actually need a value for (almost) every index upto 10^50 (in which case RAM will be able to hold your dataset either way), an array is a memory waste — due to the empty indices it will contain
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<dmiller> Mon_Ouie: yeah you're right. Unfortunately I need to figure out a better strategy, computers aren't big enough for my naive approach. Thanks for your help!
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<Mon_Ouie> I'm still wondering, does your approach require such an array?
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<dmiller> So to let the cat out of the bag a little, I'm representing a rubik's cube. A great way would be a three dimensional array. Given that I am constructing a search tree where I could have millions of states loaded in memory at any given time, a multidimensional array is too inefficient, so I serialized it to a string (RRRWWWGGG etc)
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<dmiller> this works well, except I am precomputing the graph if you will, so I walk through all the possible states, compute the costs between them and store them *somewhere*
<dmiller> the trick being that when I give the problem an unsolved state it needs to get that state from my data structure of precomputed data to start walking the graph
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<dmiller> and there are a lot of possible states ;)
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<dmiller> (88 million, possibly more)
<dmiller> I implemented it in a hash but the hash can't get much past 20 million on my macbook air before thrashing
<dmiller> array was able to complete... after a while, but no way to go from a state to an index in the array as they weren't related at all
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<Mon_Ouie> I'd think for a problem like the Rubik's cube (like for solving Sudokus and as opposed to a Tic-Tac-Toa AI), memorizing all possible states isn't the best approach
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<dmiller> Mon_Ouie: one would think. I'm just learning about this stuff. If you're knowledgable I am looking at iterative deepening A* search using a pattern database. I could very well be approaching the problem wrong :P
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<dmiller> also more specifically I am looking at all the possible permutations of the corner cubes, but that is still 88 million
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<scx> Is there an easy way to get a cartesian product of arrays? For example [1, 2, 3], [4, 5], [1, 2, 6] => [1, 4, 1], [1, 4, 2], ..., [3, 5, 2], [3, 5, 6]
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<burgestrand> scx: [1, 2, 3].product([4, 5], [1, 2, 6])
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<scx> burgestrand: ok, thanks
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<scx> burgestrand: what if i dont know numer of arrays?
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<scx> for example it can be 5: [1, 2] [3, 4] [5, 6] [7, 8] [9, 10] => [1, 3, 5, 7, 9], ...
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<burgestrand> scx: same thing as everything in ruby, assuming you have an array of arrays (what you have there)
<burgestrand> scx: [1, 2, 3].product(*[[1, 2], [3, 4], [5, 6], [7, 8], [9, 10]])
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<scx> burgestrand: thanks again
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<lewis> hmm
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<schleppy> given c = {:a => "b"} is there a way to access via c["a"]?
<schleppy> rather than c[:a]
<workmad3> schleppy: no, because "a" != :a
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<workmad3> schleppy: however, there are a range of HashWithIndifferentAccess classes out there that wrap a normal hash and allow that
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<schleppy> ok, thanks workmad3
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<m4rtijn> hi
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<m4rtijn> if im not in a class or module... in a plain, foo.rb file.. and create an instance var there.. whose instance variable is that then?
<m4rtijn> is that an instance var of Object?
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<Mon_Ouie> No, instance variables don't depend on classes or modules, but only on self
<Mon_Ouie> And self at that point is a special object called main
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<Mon_Ouie> (it's just an instance of Object with a few methods like #public, #protected, and #private)
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<m4rtijn> thanks Mon_Ouie
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<m4rtijn> hm, so main is an instance of Object
<m4rtijn> is that still true in 1.9 ?
<Mon_Ouie> Sure
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<m4rtijn> k
<Mon_Ouie> (I actually assume we're talking about 1.9 unless specified otherwise)
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<m4rtijn> ahja, in irb calling self.class = Object
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<m4rtijn> bye
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<crocket> What is ruby 4.5 in debian stable repository?
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<Xeago> when calling a method that returns a lambda
<Xeago> what does &methodcall do?
<Xeago> e.g. the &
<hoelzro> it calls to_proc on the value
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<hoelzro> and makes the resulting Proc the block provided to the method
<hoelzro> ex: nums.each(&:print_stuff)
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<hoelzro> that's equivalent to nums.each { |n| n.print_stuff }
<Xeago> wait, that's not what I meant
<Xeago> serach for a & in that
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<Xeago> don't have a line number sorry
<hoelzro> you mean like Tire.search('articles') { query { boolean &tags_query } }?
<Xeago> yea
<workmad3> Xeago: that's just using lambdas stored in variables rather than the result of :sym.to_proc (which is what &:sym is short for)
<workmad3> it's the same principle :)
<Xeago> okay
<Xeago> and I can apply the same technique for a method that returns a lambda (instead of a variable), right?
<hoelzro> I think so
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<franksch_> I have a ~/.gemrc file with only a proxy setting
<franksch_> gem: --http-proxy http://username:password@proxy:port
<workmad3> method(&some_variable) is saying 'call some_variable.to_proc and pass it in as the block parameter of method)
<workmad3> '
<franksch_> and when I run gem list
<franksch_> I get "Failed to load ~/.gemrc"
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<Xeago> workmad3: ah okay, that makes more sense to me now
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<workmad3> Xeago: you can use the same technique on anything that will evaluate to an object that responds to 'to_proc' :)
<Xeago> so the prefix of &
<franksch_> permissions are -rw-r--r--
<franksch_> any idea what could be wrong?
<Xeago> is equal to the suffix of .to_proc ?
<workmad3> Xeago: not quite
<workmad3> Xeago: because it also passes it in as the block argument
<workmad3> Xeago: so it's sort of the equivalent of doing 'method {|*args| arg.to_proc.call(*args)}'
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<workmad3> Xeago: incidentally, ':sym.to_proc' really produces a proc equivalent to 'proc{|callee, *args| callee.send(:sym, *args)}' (which helps to make sense of how symbol to_proc works for all the enumerables :) )
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<adaro> I have a piece of ruby code that does URI.parse(url).open(....
<adaro> is there any way to make this code use a proxy
<adaro> say via some .rubyrc
<adaro> i know you can export http_proxy etc, but since i am not allowed to configure this systemwide i would have to make a wrapper script
<Xeago> export is only current shell right?
<Xeago> hmm
<Xeago> easiest would be an tunneling it
<Xeago> and for that I'd use ssh
<Xeago> there's a really nice ssh rubygem, that could allow you to do this
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<hoelzro> Xeago: you would still have to tell Ruby to use that tunnel for communication, though
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<hoelzro> adaro: I'm not sure about the best way to do this in Ruby, but there's always tsocks
<Xeago> if the port is outside of root range, not needed
<Xeago> you can socks the process for example
<hoelzro> which overrides the socket library calls provided by libc to send them to a proxy
<adaro> Xeago: well the current shell and any subprocesses
<Xeago> "you can socks the process for example" => use tsocks
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<adaro> Socks sounds worse than creating a simple wrapper script
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<hoelzro> it probably is
<nesoi> hello, what editors do people like for ruby on windows?
<hoelzro> I would use http_proxy in the env
<nesoi> besides vim
<nesoi> :)
<Xeago> emacs
<nesoi> and emacs
<Xeago> notepad
<DefV> most ruby developers on windows shot themselves a long time ago
<adaro> rubymine is nice regardless of platform
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<nesoi> if I could get it to work properly on osx 10.6 I might use that
<adaro> emacs and vim are for massochists :)
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<nesoi> how about "what free editor do people like for ruby on windows which isn't vim or emacs"?
<nesoi> rubymine appears to cost $69
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<hoelzro> I've heard good things about Sublime Text 2
<Xeago> i've hears bad thigns about Sublime Text 2
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<Xeago> however, just try it
<hoelzro> but I can't vouch based on personal experience
<Xeago> there's also e
<Xeago> e is cool
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<Xeago> notepad++
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<JonnieCache> sublime text 2 is amazing
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<Xeago> it's documentation is arcane
<JonnieCache> definitely try it if youre looking for a new editor
<JonnieCache> who needs documentation ;)
<Xeago> I want to customize it
<JonnieCache> python's reflection api should be enough for you :P
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<Xeago> myself, and not c/p from others who died trying
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<JonnieCache> but yeah that is an issue. its because theres only one developer and he works like a machine on new features all day every day
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<Xeago> open source it
<Xeago> >.<
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<JonnieCache> let him make his money
<Xeago> there's licenses for that
<hoelzro> I thought ST2 *was* open sourced?
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<JonnieCache> yeah but whos gonna buy a license for an oss tool? a lot less people
<nesoi> I thought sublime text 2 was a mac app
<nesoi> also, it's not free either
<Xeago> at the moment it is free shareware
<JonnieCache> its osx/linux/windows
<Xeago> with no expiration
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<nesoi> hmm Sublime Text 2 may be downloaded and evaluated for free, however a license must be purchased for continued use. There is currently no enforced time limit for the evaluation.
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<JonnieCache> its one of those things where if you like it, you *really* like it and you just throw money at the guy
<nesoi> I tried intext, but it won'
<nesoi> t load the ruby bundle
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<JonnieCache> i bought a license pretty quickly
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<Xeago> what's the difference between"Sublime Text 2 may be downloaded and evaluated for free, however a license must be purchased for continued use. There is currently no enforced time limit for the evaluation." and buy a license for commercial use
<nesoi> and the filename includes "unstable" which doesn't give me confidence
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<JonnieCache> nesoi: thats just him being modest. ive never seen it misbehave and i run the least stable builds
<JonnieCache> Xeago: it nags you ever n saves
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<JonnieCache> s/ever/every
<nesoi> ah very nice
<nesoi> pretty colors
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<JonnieCache> also check out the vim mode, which is entirely implemented using the key binding api (with a little of the general python api)
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<nesoi> I first used vi about 40 years ago, but I never learned it, so vim mode won't be that useful to me
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<Xeago> my vim setup only misses shell integration, I haven't taken time to do it yet, with my current setup I got multiple keyboards 3 1440*2560 screens + 1280*800 below that,
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<Xeago> I hooked up a secondary keyboard to always type to a shell
<Xeago> and that's all I need
<Xeago> whether in vim, macvim, textmate
<lewis> is it recommended to learn sql
<nesoi> is vim actually better or is it just odd snobbery? I always thought of vi as a primitive hack done before true screen editors existed
<Xeago> vi is standardized
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<Xeago> vim extends (and is incompatible) with the standard
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<nesoi> yeah, but the reason for vi was slow update speeds
<nesoi> so you could use it on a very slow text terminal
<Xeago> vim can run in vi mode
<nesoi> screen editors had to repaint everything until the vt50
<Xeago> which is default I might add
<nesoi> and then the vt100 implemented scrolling regions, etc.
<nesoi> so you could do line inserts and deletes without repainting
<nesoi> I wrote an early screen editor that did that btw
<nesoi> but I never learned vi because it seemed very outdated
<Xeago> vi is outdated
<Xeago> but it runs freaking everywhere
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<nesoi> so my question is: is it really better for some reason or is it just like cyberpunk snobbery?
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<Xeago> vim is better than vi handsoff
<Xeago> as vim is vi + more
<nesoi> sure but it's still the same mode oriented crap no?
<nesoi> which really existed for line mode terminals afaik
<Xeago> no, it exists for seperating concerns
<nesoi> not originally
<nesoi> originally it existed because you couldn't repaint your whole fucking screen at 75bps
<nesoi> or even 300
<nesoi> I remember when 1200bps was super fast and reserved for the graphics tubes
<nesoi> that's when people used vim
<nesoi> I mean vi
<nesoi> and it was really because you couldn't run a screen editor
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<nesoi> when kedit came out it was just fantastic
<nesoi> so that's why I have a hard time believing that vi or even vim is really great, since it was built to satisfy a very limited environment
<nesoi> but maybe it is. is it?
<Xeago> I like vim
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<nesoi> why is it better than a true screen editor?
<Xeago> ed was a line editor
<nesoi> vim was optimized for slow displays because it didn't repaint
<nesoi> as I recall
<nesoi> back then, terminals were totally dumb in that you couldn't delete a line without repainting everything under it
<nesoi> which required the host to resend it at 75bps or 300bps if you were lucky
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<pen> hey
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<pen> anyone use Watir Webdriver?
<clocKwize> hey
<pen> Is it possible to not let it open the browser window?
<nesoi> "Joy explained that the terse, single character commands and the ability to type ahead of the display were a result of the slow 300 baud modem he used when developing the software and that he wanted to be productive when the screen was painting slower than he could think."
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<nesoi> ok thanks for the tips
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<shevy> Xeago I think it is a bit along the lines of "If you like Sublime, please donate." in a little bit more stern voice perhaps :-)
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<shevy> it's quite ok... I am still using bluefish 1.0.7 but I have realized that there will come the day when I must switch... still unsure where to... geany, bluefish 2 or sublime ... or perhaps I go back to vim... but my brain hates wanting to master vim...
<shevy> now I am tricking my brain though
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<shevy> I learn C and vim at the same time!
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<hoelzro> C is definitely worth learning, even if you don't use it all the time
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<shevy> yeah well
<shevy> I stopped always at around the times when pointers where used
<shevy> *were
<hoelzro> pointers aren't that complicated
<hoelzro> they do require a bit of a leap of thinking, I suppose
<JonnieCache> is there an equivalent of %w{} that lets me do comma delimeted strings?
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<JonnieCache> so i can do %foo{word,anotherword,two words, three more words}
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<hoelzro> JonnieCache: I'm guessing not; how about '...'.split /,/?
<JonnieCache> nah that looks ugly and weird
<hoelzro> fair enough =)
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<matled> JonnieCache: I don't think so, but at least you can escape spaces if necessary
<JonnieCache> ive just gone for a normal array with commas and quotes and everything. im just declaring a constant full of strings and wanted it to look neat
<matled> %w(word two\ words)
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<matled> you could also put one on a line with <<-S.split("\n")
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<JonnieCache> the idea is clarity and cleanness so im not going with that :)
<JonnieCache> thanks though
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<arietis> how do i open private key in ruby?
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* burgestrand is confused
<arietis> for cert i'm using OpenSSL::X509::Certificate
<arietis> what about key file?
* burgestrand runs away
<arietis> key.pem file
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<arietis> i suppose i need private_key = OpenSSL::PKey::RSA.new(File.read(private_key_file),password)
<arietis> wonder if i need to decode it in order to sign PKCS7
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<arietis> argh
<arietis> can i just run .sh script inside ruby app?
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<heftig> system()
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<arietis> lol
<arietis> the problem was i used manifest file in wrong format
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<Xeago> Does anyone know why some methods in Tire::Search use @value[:abc]= and some use @value = { :abc =>}
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<Servidorv> hey guys
<Servidorv> good morning
<Servidorv> is anyone there??
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<hoelzro> servidorv: morning
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<sonne> greetings!
<sonne> is there a way to generate a Gemfile from gems that are installed?
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<sonne> sort of "pip freeze"
<Xeago> sonne: to what intent?
<sonne> making sure that "bundle install" installs the same versions of gems that i'm using right now
<Xeago> if there is a lock file yes
<Xeago> tho you should use bundle
<sonne> point is... if i type "gem 'rails', '=1.2.3'" in the Gemfile and then install it with bundle, i'm not sure the dependencies will be at the same version when the project will be installed on some other machine in the future
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<Xeago> thats why there is a Gemfile.lock
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<Xeago> that specifies the exact version used
<sonne> aha!
<sonne> so when i use 'gem "rails"' in the Gemfile bundle refers to the lock file for the versions
<sonne> i didn't know that... cheers :)
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<Xeago> other way around
<Xeago> bundler looks in gemfile what dependencies it has
<Xeago> than in gemfile.lock what versions of the dependencies were used
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<sonne> what i meant is: after i did my bundle install for my project, the next person's bundle will check the lock file to know which versions to install
<Xeago> yep :)
<sonne> awesome!
<Xeago> tho, use 'bundle' satisfy gem dependencies
<Xeago> use 'bundle install' to add new gem dependencies
<sonne> yup, i always do that
<sonne> but never noticed that the .lock file actually had stuff inside... :)
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<fgro> how can i determine all the classes which include a certain module? or rather test include?(module) on the set of classes in question?
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<burgestrand> Xeago: aren’t `bundle` and `bundle install` the same command?
<sonne> Xeago, i noticed that the lock file has different means of specifying the versions: some are =, some ~>, some have no indication... i guess there is some way that bundle uses to detect which ones could be ideally upgraded safely?
<Xeago> yep
<burgestrand> … I mean, both installs gems
<Xeago> burgestrand: could be, am a bit unsure
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<burgestrand> I haven’t used bundle install for ages, I just bundle :)
<Xeago> sonne: they correspond to the versions constructed in the gemfile
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<burgestrand> sonne: it’s a result of your Gemfile, and possibly gem dependencies between gems
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<JonnieCache> to bitmask or not to bitmask, that is the question
<sonne> cheers
<sonne> ..."pessimistic operator" :D
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<Xeago> JonnieCache: without a doubt, bitmask
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<JonnieCache> but maybe the client will want to change the list of things
<JonnieCache> maybe i want a new db table
<JonnieCache> im going to err on the side of the clients wanting to change things
<JonnieCache> they are, after all, clients
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<arietis> is it possible to have 2 date formats?
<arietis> my date value can be divided by "/" or "-"
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<arietis> on different devices
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<arietis> can i set delimiter to some mask?
<Xeago> arietis: there's strftime
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<arietis> yeah
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<arietis> but i have '%m-%d-%Y-%H:%M'
<arietis> and i wanna be able to parse it like '%m/%d/%Y-%H:%M' also
<Xeago> then simply put it in 2 variables?
<arietis> i can't
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<arietis> since i don't know which format to use
<arietis> at the moment of parsing
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<arietis> i could check if string contains '/' char tho
<arietis> is it good idea?
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<arietis> at least it works
<arietis> :)
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<schaary> hi - how could i enforce a thor script to use utf-8 as default encoding?
<schaary> in a ruby file I could write # encoding: UTF-8 in the first line
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<schaary> but in thor ... there is #!/usr/bin/ruby in the first line
<hoelzro> schaary: I'm pretty sure the encoding line is valid in line 2 as well
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<Xeago> it is
<schaary> thx
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<schaary> the script still works ;)
<schaary> thx
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<xcbghz> hi guys... anyone knows how to solve this problem [-] Exception handling request: undefined method `%' for nil:NilClass
<xcbghz> ?
<hoelzro> xcbghz: does that error message come with a line number, filename, and code?
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<xcbghz> hoelzro: i get only that line... no more info
<hoelzro> what kind of application is this?
<hoelzro> I'm guessing a web app
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<_axx> hey guys, how would you handle a lost connection on a ruby tcp client? (i have a ruby script that runs a tcp connection (client)) when my connection gets dropped, i would like to reconnect tcp client (it now just does nothing)
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<_axx> the script runs as a daemon btw. .)
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<_axx> i'm not sure how to detect the lost connection and reconnect then
<hoelzro> xcbghz: sorry, I'm not familiar with metasploit
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<hoelzro> _axx: are you just read()'ing from the socket?
<xcbghz> ok thanks anyway hoelzro :)
<postmodern> xcbghz, ask in #metasploit
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<xcbghz> thanks
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<_axx> hoelzro: yeah more or less, i connect to an IRC server via tcp, the same daemon opens up an udpsocket and forwards incoming udp messages to the irc channel, i only use socket.puts to send the IRC data. i also use socket.gets to resond on PING/PONG messages from irc servers.
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<hoelzro> ok
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<_axx> but the tcp connection doesn't recognize, when my tcp connection gets lost
<hoelzro> so if you lose the TCP connection, I'm guessing puts/gets should return raise an exception
<adaro> h4x0r
<hoelzro> or possible return a special value
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<_axx> yes. :) i thought about a begin / recue / retry flow
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<_axx> throw the exception -> restart method (the method starts the udp server and tcp connection
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<hoelzro> why restart the UDP socket if the TCP connection goes down?
<_axx> it basically restarts the whole script, i could also limit that to the tcp connection only.
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<kwaskwan>
<sixteneighty> hi. i want to create a new file in my directory and write some xml markup in it. here is my code where i create the file and create the xml markup but i do not know how to write my markup into my file ... https://gist.github.com/3905630
<_axx> i'm just having problems, handling the lost tcp connection :S
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<sixteneighty> maybe anybody can push me in the right direction
<_axx> sixteneighty: you can use File.open also to write to a file
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<_axx> File.open('file/path','w') do |line| line.puts "your data" end
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<sixteneighty> _axx: ok i give i try :-)
<_axx> :)
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<sixteneighty> _axx: hm i tried this way ....
<sixteneighty> File.open(title + '.plist', 'w') do |f| f.puts "<?xml version="1.0" encoding="UTF-8"?>" f.puts "<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">"
<sixteneighty> end
<sixteneighty> but get syntax error messages
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<sixteneighty> i think because of escaping the " the wrong way
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<_axx> you can either use ' ' instead or you change " to \" and // to \/\/ (it's called escaping)
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<sixteneighty> ok thx!
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<fr00ty_l00ps> Alright, so I am making a program for school that draws the Fibonacci Spiral on a TKCanvas
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<fr00ty_l00ps> Here is my code: http://pastebin.com/KLRkvWXG
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<fr00ty_l00ps> And the output at the moment: http://imgur.com/fJhOY
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<cmol> Hi guys. I've been writing a lib, and i have some configuration data that i want people to be able to add. Where should i put the file? I have a lib dir with _scriptname_.rb and a _scriptname_ folder and everything in a module. How to do this smartest?
<fr00ty_l00ps> all I need now is to basically rotate the bottom section (the part that is not the first two iterations) 180 degrees. How would I go about this?
<burgestrand> cmol: configuration data?
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<cmol> burgestrand: passwords, servername
<burgestrand> fr00ty_l00ps: sorry I can’t help you, I don’t use tk myself and you’re the first person I’ve ever encountered in here in two years that brings up tk :p
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<fr00ty_l00ps> Haha, and I am 14 xD
<burgestrand> cmol: people to be able to add?
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<burgestrand> fr00ty_l00ps: okay
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<fr00ty_l00ps> Its the only graphical library that is portable (school's computers are picky) that will suffice for me
<cmol> burgestrand: well, edit. my idea is a config.example or something like that to add to the repo
<Spooner> fr00ty_l00ps : Tried gosu?
<fr00ty_l00ps> cant install gems
<burgestrand> cmol: ah, why do you need it to be accessible from users of your gem?
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<fr00ty_l00ps> im running Ruby off of my flashdrive
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<fr00ty_l00ps> with a command prompt on the flashdrive too
<Spooner> fr00ty_l00ps: Can...yeah that isn't going to work, though no reason you can'r install gems on your flashdrive installation.
<sixteneighty> _axx: ok, only one error left :-) /fileReader.rb:17: syntax error, unexpected tSTRING_BEG, expecting keyword_end f.puts '<key>items</key>'
<cmol> burgestrand: to make it work with their own setup
<sixteneighty> _axx: is this because of the backslash?
<burgestrand> cmol: anyway, for non-required files you place them wherever, I tend to place them outside the lib directory, and then provide either a method or a constant with the full path to the file
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<fr00ty_l00ps> Spooner: well, it doesnt let every program that we use access the network ^^
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<fr00ty_l00ps> I live in a jail cell ._.
<burgestrand> cmol: I have a gem that is nothing else than a binary file and a path to the file, for an example: https://github.com/Burgestrand/libspotify
<cmol> burgestrand: Ok, i had and idea that there was a universal "we do it like this" for it :P
<fr00ty_l00ps> theoretically speaking, of course
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<burgestrand> fr00ty_l00ps: you can download gems to disk and install them from there :)
<Spooner> fr00ty_l00ps: Yeah, but surely you can install the gem when you aren't on that network.
<Spooner> Or do that ;)
<fr00ty_l00ps> But I am soooooo close with tk!! I dont exactly care to change it now c:
<burgestrand> cmol: not as far as I know, rails has a similar thing with assets in gems, but what it does is really funky and you don’t want your users to have to do that
<cmol> burgestrand: Ok, well, thanks for the help!
<_axx> sixteneighty: yes, maybe.
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<Spooner> fr00ty_l00ps : Well, anyway, what you are asking for is someone to parse your script, and correct your algorithm (regardless of TK) which is a bit beyond the scope of #ruby ;) We can tell you how to do stuff, but design is your bag!
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<burgestrand> the rate at which you get help is usually proportional to how complex and big your code is :p
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<fr00ty_l00ps> haha, I figured as much, but I didnt know if anybody knew anything related that I did not ^^
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<fr00ty_l00ps> Thanks though :)
<tobiassjosten> I'm trying to get Compass working with Symfony2. Ruby is installed with RVM (using 1.9.3) and I have the compass gem installed properly (shows up on `gem list` and in my path).
<Spooner> fr00ty_l00ps I can tell you that if x; ...; elsif x != true; ...; end is redundant. 'else' is enough ;)
<tobiassjosten> Still I bump in the error: /…/rubygems/dependency.rb:247:in `to_specs': Could not find compass (>= 0) amongst …
<Spooner> I can also say tht you are usin upto i and altering the value of i in the loop, which is redundant.
<fr00ty_l00ps> Spooner, yes, I forgot to change that back, as I was just flipping through things, changing what could be a problem
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<fr00ty_l00ps> A friend of mine who has never written Ruby before came up with the upto
<fr00ty_l00ps> xD
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<Spooner> upto is fine. The i += 1 is the bit that is redundant.
<tobiassjosten> Any ideas what could cause that? What could cause Ruby to sometimes not find the correct "gem path"? Or am I wrong in supposing that's the problem?
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<fr00ty_l00ps> Spponer: so i dont need that? I use i in the recalc_length() though...
<Spooner> fr00ty_l00ps : I is incremented by upto. Just try it without the i += 1 and it will do the same thing.
<fr00ty_l00ps> oh, okay, thanks :)
<Spooner> *i is incremented by #upto
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<fr00ty_l00ps> other than that, is it Ruby-like enough? I come from a java background... So a lot is different for me...
<Spooner> You also don't need to do @shapes[i] at all (so don't need i = 0). You can just @shapes << TkcR...
<shevy> man I feel as if I need to beat someone
<fr00ty_l00ps> true... I will change that ^^
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<Spooner> calc_a and calc_b could have += and -= in them. There is no reason to return @values in either of those methods, since they alter @ivars.
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<Spooner> fr00ty_l00ps : $PHI = 1/(((5 ** 0.5) +1)/2) should just be PHI = 1/(((5 ** 0.5) +1)/2) in the class scope (outside initialize) for a class constant.
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<fr00ty_l00ps> Spooner, as for the calc_a and calc_b isnt it better practice to return something, rather than just access @vars elsewhere?
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<Spooner> fr00ty_l00ps : No. Either modify @ivars or return new values (that you can put in those @ivars). No point doing both!
<fr00ty_l00ps> alrighty
<sixteneighty> ok thx to _axx i can write the xml markup into my file, now i want to write some values into my markup and tried it this way https://gist.github.com/3905816
<sixteneighty> how can i write the value from #{ipa_file.bundle_identifier} into the markup?
<Spooner> sixteneighty : Please don't do that. Use Nokogiri::XML to generate xml please!
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<fr00ty_l00ps> Spooner, the change to $PHI gave me an error
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<sixteneighty> Spooner: Ok.
<fr00ty_l00ps> "dynamic constant assignment"
<Spooner> fr00ty_l00ps : You need to access it as PHI as well.
<fr00ty_l00ps> ahhhhh
<Spooner> fr00ty_l00ps : Oh, I said put it outside initialize.
<fr00ty_l00ps> oops xD
<fr00ty_l00ps> so in do_work?
<Spooner> No, in the class but outside any method.
<fr00ty_l00ps> okay
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<Spooner> sixteneighty : http://nokogiri.org/Nokogiri/XML/Builder.html really, you'll find it a lot easier!
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<_axx> sixteneighty: string interpolation like puts 'my name is #{name}' only work with double quotes like puts "my name is #{name}"
<arietis> 2012-10-17T14:34:58+00:00 app[web.1]: TypeError - can't convert Range into Integer:
<arietis> 2012-10-17T14:34:58+00:00 app[web.1]: /app/server.rb:39:in `rand'
<arietis> why it happens?
<Spooner> arietis : You need Ruby 1.9.3 to do that.
<Spooner> Before that, #rand only accepted integers.
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<arietis> Spooner: kk, thanks
<matti> Spooner: :)
<Spooner> sixteneighty : IN fact, you've required builder (which is the stdlib XML generator, which is fine) but then not used it! Just use that if you don't want an external gem dependency.
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<wereHamster> why is there no Net::HTTPUnprocessableEntity in 1.8.7?
<wereHamster> and what do I use in a 'case response; when X' to catch it?
<Spooner> wereHamster: Just: when Net::HTTPUnprocessableEntity
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<Spooner> Unless I'm misunderstanding what you are trying to do.
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<wereHamster> Spooner: http://pastie.org/5073468
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<wereHamster> oh, did I mention that there is, quote, "no Net::HTTPUnprocessableEntity in 1.8.7" ?
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<Spooner> I was answering your second question.
<wereHamster> so how do I detect a 422 response then?
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<Spooner> There doesn't seem to be one in 1.9.3, so not sure why you are making that clear anyway.
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<wereHamster> I have a when Net::HTTPCreated, when Net::HTTPUnauthorized block etc. How do I handle a 422 response?
<Spooner> wereHamster : Short answer is generate one and see what you get given in the code.
<sixteneighty> thx Spooner
<wereHamster> Spooner: how do I generate one? Where is the documentation how to generate one?
<Spooner> There'll probably be a general HTTPUnknownError (just a guess) that manages all theones that aren't specifically named).
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<Spooner> wereHamster : Well, presumably you are testing your script with all the responses you expect to have to deal with...
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<JonnieCache> anyone here who's sick of activerecord and has been thinking of trying out sequel - do it
<JonnieCache> all the stuff in AR thats actually useful but much less bloat, and a lot less abstraction
<Spooner> JonnieCache : I think we could do with more like that in Ruby ;)
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<JonnieCache> it still has abstractions, it is after all an ORM which is an abstraction pattern
<JonnieCache> but it doesnt pile loads of other indirection on top of that
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<Spooner> wereHamster : Interestingly, Ruby 2.0 has Net::HTTPUnprocessableEntity :D
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<JonnieCache> AR sometimes feels like its adding abstraction just for the sheer thrill of it
<JonnieCache> rails is like that in general but ar is the worst
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<oz> Sequel++
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<sixteneighty> _axx: the string interpolation is not working, i have tried it this way '<string>\"#{ipa_file.bundle_identifier}\"</string>'
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<matti> sixteneighty: Its still in ''
<Spooner> a) just use an xml builder (please) or b) "<string>#{ipa_file.bundle_identifier}</string>"
<matti> Spooner: With \" \" inside.
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<matti> Spooner: If he has to quote something there.
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<Spooner> What? Why on earth do you need quotes inside xml? *gives up*
<matti> No idea ;]
<matti> He seem like he wantes it there.
<matti> But it might be just him trying to get it to work.
<matti> ;p
* matti hugs Spooner
<matti> Spooner: Don't give up, shevy will miss you
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<_axx> sixteneighty: you need to do it like this: "<string>#{ip_file_bundle_identifier}</string>"
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<_axx> sixteneighty: if you enclose your string with ' or " you need to do the opposite
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<sixteneighty> _axx: jepp got it thx
<shevy> people still use XML???
<_axx> sixteneighty: good. :)
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<sixteneighty> :-)
<_axx> shevy: in a captain fancy pants startup world that seems funny, but some people actually use XML. :D
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<Spooner> shevy : Have you seen that swarley is writing an XML gem from scratch in C? People love XML :D
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<matti> Spooner: Not because he loves it.
<matti> Spooner: He is plain nuts.
<Spooner> matti Oh, OK. That was sort of my assumption too.
<matti> Spooner: Or, he is secretly a masochist who likes to entail mental harm upon himself.
<matti> Spooner: :)
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<Spooner> matti I prefer to waste my time developing stuff few people want that doesn't work in the end so no-one actually wants. I find life is simpler then.
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<matti> Spooner: ;)
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<ShiintoRyuu> I recently upgraded the brew ruby version and I think this is what caused my capistrano and capifony gem to break - is there something to cleanup/reinstall after updating ruby?
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<delinquentme> has anyone in here done ruby PHP integration?
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<delinquentme> I'm not really a PHP developer ... b ut someone just dropped the bomb on me saying " I've heard ruby integrates well with PHP "
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<regedarek> Hello, guys how to set in module variable which will be availible in any class of this module?
<jcoglan> instance variables, just like in a class
<jcoglan> @foo = 'bar'
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<jcoglan> a fun fact: classes are just a special type of module. a module is a bag of methods with 0 or more parents (mixins)
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<jcoglan> a class is just a module you can instantiate, plus it has additional inheritance semantics (single parent class, singleton methods are inheirted)
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<regedarek> jcoglan:https://gist.github.com/e16f460d416f65d8a2d3
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<regedarek> in Application class @test is nil :|
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<jcoglan> line 2 makes @test a property of TwilioApp. line 5 makes @test a property of the current request environment
<jcoglan> would a constant work here?
<jcoglan> remember instance variables are just properties attached to objects
<jcoglan> they don't work lexically, whereas constants do
<regedarek> yep constant work
<jcoglan> i.e. on line 2, `self` is the TwilioApp module. on line 5 `self` is the current request
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<regedarek> ah ok
<jcoglan> @ivars are looked up in whatever `self` currently references
<regedarek> now I understand, thank you very much
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<regedarek> And can i define something like global variables?
<jcoglan> globals are written as $foo
<regedarek> I would like to set up twilio configuration for all classes in TwilioApp module
<regedarek> @client = Twilio::REST::Client.new(@account_sid, @auth_token)
<jcoglan> but constants are globally visible -- you can reference TwilioApp::FOO from anywhere
<regedarek> and then in new class I would like to have access to @client
<jcoglan> you might want this to be varaible then, rather than a constant, or make TwilioApp a class you can instantiate
<jcoglan> module TwilioApp
<jcoglan> class << self
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<jcoglan> attr_accessor :config, :client
<jcoglan> end
<jcoglan> end
<jcoglan> then you can use TwilioApp.config = :blah
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<JonnieCache> delinquentme: who said that to you?
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<delinquentme> JonnieCache, an academic
<delinquentme> =P
<JonnieCache> wtf
<JonnieCache> they dont integrate at all
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<JonnieCache> i mean, you can integrate them like you can integrate any two systems, by exposing apis in a common format like json-over-http or 0mq or whatever
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<JonnieCache> but i mean you can do that with any language
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<JonnieCache> you should have asked them to elaborate
<JonnieCache> :)
<jrajav> Nah, Ruby integrates great with PHP mang
<JonnieCache> theres one that goes the other way as well, compiles php to ruby
<JonnieCache> someone actually managed to mount wordpress inside rails its pretty funny
<JonnieCache> its in my favourite ever conf presentation: http://www.confreaks.com/videos/198-rubyconf2009-worst-ideas-ever
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<jrajav> Of course there's also PHP -> JS http://www.harmony-framework.com/
<jrajav> But seriously what DOESN'T compile to JS
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<JonnieCache> even C compiles to js its fucked up
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<jrajav> Now I want to take languages that compile both to and from js
<jrajav> And run the cycle several times
<jrajav> See how bad it can get
<jrajav> And when it first breaks
<JonnieCache> like babelfishing back in the day. interesting
<jrajav> Yup
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<kaawee> Hello! Does anybody uses Ruby Installer Development Kit under Windows?
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<samuelj> Hey everyone, i'm using bundler with jruby. If i specify in my gemfile that i need the jruby engine, can i just execute my ruby file as follows: bundle exec foo.rb ? Or do I need to use jruby -S bundle exec foo.rb
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<samuelj> Can someone actually explain why I should use exec at all?
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<shevy> Spooner I dont understand this world anymore
<shevy> today's young folks are all on facebook. I feel excluded :(
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<shevy> jrajav we all miss the bot
<jrist> don't
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<jrajav> Oh crap I totally forgot about putting that VM up as a torrent
<shevy> oh a bundle question
<jrajav> Need to somehow remind myself tonight
<jrajav> XD
<shevy> who was the bundle expert... workmad3?
<shevy> jrajav, nah come on
<shevy> give in to laziness
<shevy> embrace the sleep
<shevy> :)
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<jrajav> Its too late! I already set an alarm
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<jrajav> Now the laziest course is to NOT be lazy
<jrajav> :P
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<shevy> hehe
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<shevy> oh man :(
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<shevy> I feel so lazy... I wanna finally learn C and vim at the same time, but laziness took hold of me again
<hoelzro> shevy: you need to find a reason to learn C
<hoelzro> why not write a Ruby extension using C?
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<jrajav> Why do you need a reason to learn C?
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<jrajav> Just think of a few simple problems and code them up
<shevy> hoelzro well I kinda feel as if I dont really understand C alone
<jrajav> I have a list of problems I run through for learning any new language
<shevy> I had that working hello world example in ruby-c and that jukebox example from pickaxe, but C code is totally mysterious to me (save for the functions... those are quite similar to ruby... but pointers, man, they dont get into my old brain..)
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<Spooner> kaawee : I do (use the devkit). What's up?
<shevy> yeah
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<shevy> I can use arrays in C :)
<jrajav> Pointers are tough
<shevy> (not pointers of arrays though, I cant even remember the syntax without having to look at a reference)
<jrajav> The thing that clicked for me when I was first learning about them was that they're really just indexes into a huge array representing memory
<shevy> some & I think... or was it *
<shevy> hmm
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<hoelzro> & is to get a pointer
<jrajav> & is for getting a pointer to something given the variable
<hoelzro> * is to dereference
<jrajav> * is the opposite, it dereferences a pointer
<shevy> pointers are like arrays?
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<jrajav> * is also to declare pointer types
<jrajav> No, pointers correspond to locations in memory
<jrajav> Arrays are implemented with pointer arithmetic
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<jrajav> An array variable is really just a pointer to the start of the array in memory, and doing something like a[4] increments that start pointer by 4 memory-locations
<Spooner> ary == &ary[0] and ary[0] == *ary - all you need to know ;)
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<JonnieCache> pointers arent complicated. its the concequences of using them thatll melt your brain
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<jrajav> Pointers are just numbers
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<JonnieCache> all the most complicated stuff is implemented simply
<jrajav> That the computer understands as pointing to memory locations
<JonnieCache> dna for example
<Spooner> And don't forget pointer arithmetic. ary + 4 == &arr[4]
<Spooner> But yeah, they aren't too complex. It is the repercussions of making a tiny mistake that kill you.
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<heftig> char foo[] = "blah"; and char* foo = "blah"; are different, though
<heftig> the former will allocate the string on the stack
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<Spooner> And the latter will start a land war in Asia.
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<heftig> &foo will be of type char(*)[5] in the former case, char** in the latter
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<workmad3> pointers are easy... forgetting to stop iterating over your pointer array and wandering off through memory, corrupting it as you go... that's the annoying part...
<heftig> Spooner: the latter may not be writable. trying to modify a string literal will result in undefined behavior
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<Spooner> heftig : I didn't say anything to the contary.
<heftig> i know
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<Spooner> Though I admit I didnt' realise that the former (foo[]) used the stack. My C is very rusty, but got resurrected for extensions, that are mostly a headache ;)
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<Spooner> The idea of using anything but char-arrays as constants in C is pretty laughable really. Any sane person would use a string object (well, not object, but I hope C has libraries that manage strings better than farting around with nulls and strlen and stuff).
<Spooner> *using char-arrays as anything but constants
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<Spooner> Although I wouldn't be surprised if you were considered, by C people, to be no better than Rubyists, if you didn't fly by the seat of your pants for _everything_.
<yxhuvud> Spooner: bstring.
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<jrajav> >> I hope C has libraries that manage strings better than farting around with nulls and strlen and stuff << Uh, what would you suggest?
<Spooner> Oh good. C people aren't all crazy then.
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* JonnieCache only writes C in embedded environments
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<JonnieCache> fuck managing your own memory on the desktop
<JonnieCache> lifes too short
<jrajav> There are modern, sane functions that don't allow for buffer overflows
<jrajav> But other than that string processing in C is still mostly the same
<JonnieCache> (unless your super optimising your physics engine or whatever)
<jrajav> String objects in more "modern" languages bring along a lot of baggage and overhead
<Spooner> jrajav : Yes and the assumption that 100% of your code needs to be optimised brings a lot of worthless effort.
<jrajav> Well generally when you're writing in C it's because you're trying to avoid inherent overhead
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<Spooner> Yes, but unless your bottleneck is in string processing, using C-strings is just mascohism. You could make the same argument for never using any libraries, since you could roll-your-own and they'd be 10% faster for your specific usecase.
<yxhuvud> actually, c-strings are usually not optimal from a performance perspective since a lot of the string methods have to recalculate the length all the time.
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<Spooner> Good point.
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<sent-hil> what's the diff, between warden and omniath
<sent-hil> From what I can get from their readme, they're competitor gems
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<JonnieCache> warden is a generalised framework for doing auth
<JonnieCache> it doesnt authenticate anything on its own, you have to build on top of it
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<JonnieCache> omniauth is a whole ready-to-go authentication system which plugs into all the popular identity providers
<JonnieCache> they work in similar ways, as rack middleware
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<JonnieCache> devise, which you may also have heard of, is built on warden, as are many other similar things
<JonnieCache> i'm a fan of https://github.com/NoamB/sorcery in rails
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<UberNerdGirl> hi, i'm new to user authentication and user management for Ruby web frameworks (i'm learning through Sinatra, in particular) and am creating an app where t would like to use OmniAuth to handle all of that (Twitter and Facebook) Whilst googling 'omniauth sinatra', i came across Warden (https://github.com/hassox/warden_omniauth) OmniAuth-for-Sinatra (https://github.com/charliepark/omniauth-for-sinatra), and even a a 'Warden
<UberNerdGirl> Sinatra" gist (https://gist.github.com/1309189).
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<UberNerdGirl> My questions are 1) what does warden have to offer that Omniauth can't do by itself (it says 'authentication' in the Warden docs, but i thought that's just a basic concept OA should be taking care of?)
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<UberNerdGirl> 2) what would be an example of an app where it would be a good idea to use Warden with omniauth, and one where omniauth alone should do the job?
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<Spooner> UberNerdGirl : Just pasted a recent answer on a similar topic to your PM.
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<thepirateguy> All open source and free software developers are thieves because they don't have a source of money, all pirate, warez, nulled and cracked software downloaders and users are thieves because it is against the rules to download software and shit pirately, and all software sellers are in a good position to kiss my ass, because there are pirate downloaders!
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<Spooner> Shitting pirately sounds like fun!
<thepirateguy> Shitting pirately sounds like fun!
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<thepirateguy> All open source and free software developers are thieves because they don't have a source of money, all pirate, warez, nulled and cracked software downloaders and users are thieves because it is against the rules to download software and shit pirately, and all software sellers are in a good position to kiss my ass, because there are pirate downloaders!
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<wmoxam> lol thepirateguy
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<Trioke> I'm using $! to log the error message in a rescue block, but it doesn't show the (assumed) line number of the error. How can I also get the line number for the exception?
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<Trioke> I'm using $! to log the error message in a rescue block, but it doesn't show the (assumed) line number of the error. How can I also get the line number for the exception?
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<hoelzro> Trioke: did you try calling $!.backtrace?
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<claymore> what's wrong with this? http://pastebin.com/mzv08rk0
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<claymore> it spits out "import.rb:9:in `initialize': undefined local variable or method `a' for #<Bar:0x7f222d27b4a0> (NameError)"
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<hoelzro> claymore: a is a lexical variable local to the block defining the module
<hoelzro> it's not in the scope of the class
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<hoelzro> constants would be, as would methods
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<claymore> hmm, I see
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<claymore> thanks
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<jeffsmykil> any reason file.puts "CREATE\\RENTAL\\#{type}\\#{type}-#{x}" wouldnt print on a single line?
<hoelzro> jeffsmykil: if type or x has a newline in it?
<jeffsmykil> a carriage return
<jeffsmykil> line seperated list
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<jeffsmykil> hoelzro: do i need to chomp the last number somehow?
<hoelzro> I don't know; where are you getting those values from?
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<jeffsmykil> a text document
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<RubyPanther> Are there any books that cover RACC extensively?
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<RubyPanther> I am way down the rabbit hole without any manuals (trying to figure out Journey so I can parse rails routes.rb outside of rails)
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<RubyPanther> None of the parts are documented, and the code is all divided up in a way that makes sense... once you've read every file and cross-referenced them
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<rakl> is something like this possible for a ruby array? ` [1, 2, 3].delete(1,2)`
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<rakl> instead of doing it in two lines
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<RubyPanther> rakl: if they are continuous you can assign an empty array to a range: arr = %w! one two buckle my shoe ! ; arr[0,2]=[] ; arr
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<RubyPanther> rakl: or use Array#slice!
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<rakl> no not necessarily continous
<RubyPanther> If you want two ranges you're out of luck, there is no #slap_chop!
<rakl> i have an array and just want to remove to specific items
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<rakl> can't chain .delete because that returns the deleted items
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<xclite> rakl any reason [1, 2, 3] - [1, 2] doesn't work for you?
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<rakl> xclite nope, that's perfect
<rakl> the simplest solutions escape me
<xclite> rakl, well it's one of those things you always want that Ruby is nice enough to have :)
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<rakl> hmm actually turns out that my use case is slightly more complicated than I thought. aka, I'm removing objects based on an attribute, rather than the object itself. so I can't subtract. But I'll just write a bool method
<rakl> probably better to have that than to hardcode it into the logic anyway
<xclite> arr = arr.reject{|o| o.attr = key}
<xclite> ?
<xclite> or
<xclite> duh
<xclite> arr.reject!
<xclite> lol
<xclite> o.attr == key, because i fail at life
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<RubyPanther> Ruby is so easy, you never need a Schwartzian
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<xclite> RubyPanther, I'm dumb - what does that mean? or is that googleable
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<blazes816> sort_by is just a fancy schwartzian
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<xclite> it's googleable nvm
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<RubyPanther> I was trying to sound cool by leaving off the word "Transform," sorry
<xclite> well there's not really a reject_by, right?
<blazes816> no, because reject is an O(n) algorithm
<blazes816> it would never need to execute the block more than once
<rakl> reject is a handy dandy method
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<blazes816> oh yeah it is
<xclite> i use reject all the time
<xclite> i'm abusive
<RubyPanther> I try to use #collect when I can
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<blazes816> you mean select?
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<blazes816> or do you mean you prefer to full-on map shit you don't want out
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<blazes816> and if we get a bot again ever, it needs to find tokens of the pattern #foo and give a link to ruby docs for that method, making a best guess effort
<RubyPanther> lol no you're right I grabbed the first inclusive method I could to counter abusive rejection
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<blazes816> lol
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<claymore> what about this? http://pastebin.com/tsh6u3c3
<claymore> it prints "nil", why is that?
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<hoelzro> because nums is a method from Bar's perspective
<nyuszika7h> claymore, also, next time please condider using http://ideone.com :)
<hoelzro> and you're setting a local variable named 'nums' in the class block for Foo
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<claymore> still not sure I understand... I know attr_accessor creates methods nums and nums=, but I'm not sure what the problem with that is
<claymore> I mean, methods should be in scope
<claymore> nyuszika7h: ok, I'll take a note of that
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<claymore> oh yeah, I'm setting nums in the class block
<claymore> does that matter?
<nyuszika7h> claymore, http://ideone.com/ILT9B
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<claymore> oh
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<claymore> so one probably shouldn't define variables in a module that are local to the module?
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<claymore> I'm still not entirely sure why mine doesn't work
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<roychri> If I make a class with a module, how can a method in the module access the instance and/or the class of the includer (the one including the module) ?
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<TTilus> roychri: see incuded callback
<TTilus> roychri: if i got what you are after
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<roychri> TTilus: ok, thanks. I will look.
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<roychri> TTilus: In my module I have a method that needs to create an instance of the class that included this module.
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<roychri> TTilus: I can gist it.
<TTilus> please do
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<TTilus> prolly you just need self.class.new or self.new
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<roychri> TTilus: Now I realized I explained it wrong. My module will have a class (if it is possible?)
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<roychri> TTilus: O just corrected a typo in the gist
<roychri> *I
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<kn330> http://hastebin.com/tofeheqobo.hs Why do I get this error? How do I access a variable inside a method?
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<booyakah> kn330, you need to do @@a = 10
<booyakah> i think
<booyakah> (i'm ruby noob)
<Mon_Ouie> kn330: Methods don't close over local variables
<sent-hil> kn330: turn a into a method that returns 10
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<Mon_Ouie> You can use define_method with a block when you need to define a method dynamically depending on some variables
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<kn330> booyakah: @@a=10 doesn't work.
<booyakah> kn330, u need to "puts @@a" then as well
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<kn330> booyakah: ah!
<booyakah> kn330, works?
<kn330> sent-hil: thanks for the tip :)
<kn330> booyakah: yeah, it works!
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<booyakah> sweet
<Mon_Ouie> Class variables are usually avoided because they are shared with all the ancestry tree up to the point where it is defined
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<Mon_Ouie> Plus depending on the actual problem, it probably doesn't make sense to use one at all here
<kn330> Mon_Ouie: Ohk, this was just an example. In my case I need to access a few variables across different methods
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<kn330> passing them as a parameters to each method is an option but then it looked boring ;)
<pyrotechnick> what do you guys think of wycats?
<Mon_Ouie> Do those variables actually change at runtime?
<kn330> Mon_Ouie: Not all of them do
<Mon_Ouie> Well, I'd tend to recommend class instance variables (just an ivar defined at class-level) over class variables then
<Mon_Ouie> And also constants
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<kn330> Mon_Ouie: Ok. Btw I'm pretty noob in OOP, just started :)
<yxhuvud> Mon_Ouie: are there any situations where you'd recommend @@ variables?
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<ddd> detect_troll(pyrotechnick)
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<Mon_Ouie> Actually, I remember having seen cases where I thought using them wasn't actually bad — but I can't remember exactly what.
<Mon_Ouie> I think something like an instance counter, where you'd want the counter to be increased for every instance of your class and of one of its subclasses
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<yxhuvud> give it an explanation in a comment and I'd agree.
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<swarley> I think after I finish this XML library im going to write another VM
<blazes816> VM for what?
<blazes816> Fortran?
<swarley> No, I was using parrot the other day and I was thinking
<swarley> This is really high level, what a neat concept for a vm
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<swarley> But then
<swarley> Its slow
<swarley> So I thought to myself, classes really aren't that complicated, what is keeping you from turning the code into machine code and throwing the vm into an executable with it?
<swarley> Implementation
<swarley> That's all
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<swarley> So I figure, first make a base level vm system, then write a language wrapper for it
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<R3dy> I'm trying to figure out how to use cookies with net/http
<swarley> Rewrite the compiler in the language itself and you've got super complicated dynamically compiled code
<R3dy> everywhere I google I see this resp, data = http.get(path, nil)
<swarley> But you don't even need that unless you are using an eval function
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<R3dy> but when I run that I get this error
<R3dy> initialize': getaddrinfo: nodename nor servname provided, or not known (SocketError)
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<Servidorv> hey guys
<Servidorv> i have a question
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<Servidorv> i have this code from = Date.commercial(params['from_year'].to_i, params['from'].to_i).to_time.to_s and from is the week number of the year and from_year is the year
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<Servidorv> how can i change it so instead of giving the week # and year i just give the unix timestamp
<Servidorv> ??
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<kn330> http://hastebin.com/qehavuwapu.coffee << How do I achieve this?
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<booyakah> kn330, you expect to output 0000111 instead of 111?
<kn330> basically I'm converting an integer to its equivalent binary using "7.to_s(2)" but I need an output with 8 bits i.e. "00000111" and not just "111"
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<kn330> any way that ruby could do it, without me writing a method for it?
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<blazes816> use string formatting
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<blazes816> I can't remember the exact ruby syntax but something like "%8d" % 7.to_s(2).to_i
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<kn330> blazes816: tried that but it adds blank spaces, I need zero's
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<blazes816> you should be able to specify the pad character somehow
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<kn330> blazes816: how? :|
<blazes816> idk, google it. if I knew I would have said.
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<booyakah> kn330, maybe not a good solution but can't you replace the blank spaces with zeros?
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<kn330> 7.to_s(2).rjust(8,"0") | B)
<kn330> blazes816: got it! ^
<blazes816> oh, nice
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<leggomygreggo> Has anyone used the clockwork gem?
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<ddd> this is pretty cool. http://overapi.com/ruby/ someone made a cheatsheet page where you can click on what method in the docs you want to see and takes you direct to that section (e.g File::absolute_path). Makes it easy to scan for what you want and then go right where you want.
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<roychri> I am trying to build a module which allow for chainable method and have the module automatically call some method at the end (to process the stack built by the chained method). Much like Rails ability to do alist = Thing.where(:hit => 3..99).limit(5).order("id DESC") ... the SQL query is only executed once, either when I do alist.each or alist.first... I know I mentions rails but only because I want to achieve something simil
<roychri> ar, not because I am in rails. Is there some easy way or do I have to define every possible scenario?
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<telagraphic> yo, so besides why's book about ruby, what are some books/resources that walk you through building a project or ruby program?
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<telagraphic> no one got a suggestion?
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<otters> {"a" => ["b", "c"]}.each { |k,(v1,v2)| puts "#{k} => [#{v1}, #{v2}]" }
<otters> a => [b, c]
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<otters> can somebody explain to me how parentheses in block arguments work
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<telagraphic> otters: they are where are you set the instance variables to pass into your block
<otters> what
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<otters> I can't parse that
<telagraphic> um let me find an example and link it to you...
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<telagraphic> hold on
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<telagraphic> this article shows you create your own, http://allaboutruby.wordpress.com/2006/01/20/ruby-blocks-101/
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<otters> ...
<otters> that's not even close to what I was asking
<otters> well, never mind then
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<telagraphic> re reading your question... you talking about your each ..puts one?
<otters> I'm talking about |k,(v1,v2)|
<blazes816> he means that expanded args
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<telagraphic> ok, well idk about that part, what are you trying to ask???
<blazes816> imagine the code that calls the block appends an * in front of it to expand it
<blazes816> v1, v2 = *[1, 2]
<otters> okay
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<xeronic> Can someone please look at my code at: http://codepad.org/IbYH949P . The problem is that the else clause is always run, even thou command = "users"
<otters> so "implicit splatting"
<blazes816> basically
<blazes816> IF you use ()
<blazes816> if you don't, it won't
<blazes816> so if you just had "v1", it would be = to [1,2]. if you have "(v1, v2)", v1 = 1, and v2 = 2
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<telagraphic> is your case syntax correct?
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<telagraphic> nvrmind, it is
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<telagraphic> xeronic: idk! looks legit...
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<telagraphic> xeronic: but it does run your case match too?
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<xeronic> Found the problem... The string command was set by command = io.gets instead of gets.chomp. So the string really looked like "users\n"
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<telagraphic> ah, that would do it
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<telagraphic> now go download wiz khalifa's cabin fever 2 and celebrate!
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<telagraphic> if you want to
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<felipe_Brz> could anyone tell me why, upon experimenting with utf08 on ruby 1.9, i got this error message?
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<yaymukund> any way to fetch a single column from the db, reloading it? e.g. `user.username ; user.fetch(:username) # should hit the db`
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<yaymukund> oops, ignore. I meantt ot send that to #ror
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<blazes816> I'm not going to ignore it
<blazes816> the closest thing I know of is #reload
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<swarley> Hospitals smell funny
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<saschagehlich> hey, is there a support channel for capistrano or may simply ask here?
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<saschagehlich> whatever, can anybody help me with this? https://github.com/capistrano/capistrano/issues/271
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<swarley> Maybe I should use the libxml library to parse the xml file and then just traverse the tree
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<swarley> But that would require two passes over the structure
<swarley> I guess ill create a version trying both
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<swarley> Mon_Ouie, nice project host, those are usually hard to get are they not?
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<kenneth> n #macdev
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<sent-hil> what's the best way to pass info to script that prompts for info from inside ruby?
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<sent-hil> i mean when you run the script, it prompts for some info, can't pass them as flags unfortunatey
<scriabin> can anyone help me with a rake task? https://gist.github.com/3908755 It's failing within a sed run by %x
<scriabin> I've tried escaping quotes in various places - no good
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<NemesisD> anyone know of a library that can parse JSON into arbitrary objects based on a DSL?
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<NemesisD> for example, you declare a class Post, and in the dsl indicate that the json has a string property for "title"
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<Spooner> scriabin : If you are doing sed/sort stuff, wouldn't it be as easy to do it in Ruby or would that be too slow? No idea why it isn't working though.
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<horofox> is ubygems down?
<horofox> ruby*
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<Spooner> horofox https://rubygems.org and the gem command seem to work for me. Not sure which you meant.
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<horofox> Spooner: I was getting some errors when running bundle, but it's up for me now.
<Spooner> Oh, OK.
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<horofox> Spooner: thank for the help, tho
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<Spooner> scriabin : Actually, looking at it again, I'm wondering if \n isn't being passed as the character to sed as a newline character, rather than a blackslash and and an n character. Tried \\n in the seds? and \\ for the other backslashes perhaps?
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<nesoi> hello, I'm new to Ruby and I'm trying to build db files on a new machine using rake. I have 3 files in db/migrate: 001_create_table_1.rb, 002_create_table_2.rb and 004_modify_table_1.rb. When I run rake, it seems to execute the 1st 2 but then complains that table_1 already exists and it won't execute the 3rd one. What should I do?
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<blazes816> what is your 3rd migration?
<nesoi> the 004_modify_table_1.rb
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<nesoi> oh sorry
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<nesoi> it executes the 004 and 002, but not the 001 because the table already exists
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<nesoi> maybe that's okay?
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<blazes816> no, what are the actual contents of the file?
<blazes816> put it on gist.github.com
<nesoi> which file blazes816?
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<blazes816> the one that causes the error. probably 004_modify_table_1.rb
<blazes816> or all 3 or them would also work
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