<friskd> how do i check what version of a gem i have <thomasfedb> friskd, `gem list –local` should print the versions <bluecatze> can i add keys to a hash after it has been initialized <banisterfiend> bluecatze: yes and no <bluecatze> I’m trying to loop through a text file and use some of the lines as keys then other lines as values to those keys <banisterfiend> bluecatze: yes you can <banisterfiend> bluecatze: h = {} <banisterfiend> bluecatze: h[:hello] = “yo” <bluecatze> so I have to assign the key with a value, I can’t just assign the key by itself? Just to clarify <thomasfedb> bluecatze, that is correct. <bluecatze> thank you. one last question, if I wanted to use a local variable as a key, how would I do that, I’m using hash[:key] = “value” to assign <bluecatze> for example if my local variable is hash[:unique_id] = “vale” it assigns the string “unique_id” as the key instead of the local variable <bluecatze> I did just hash[local_variable] = “value” and nothing gets assigned <thomasfedb> bluecatze, either: 1) no you didn’t, or 2) yes it did <bluecatze> ok ill try messing with it more <bluecatze> yeah it was about scope, thanks for pointing that out <friskd> Hey guys, i’m looking for a good html parser that will allow me to pass it the html of page. Extract out all the text and just leave me w/ an html tree. <friskd> So that i can write out the html tree to a file. <thomasfedb> nokogiri <RubyPanther> friskd: Hpricot works well for that, too <RubyPanther> Hpricot is very fast at dealing with (potentially ill-formed) HTML <friskd> i’m trying to find what funciton call i would use to just get the html tree <thomasfedb> friskd, it will be a bit more complex than that. <friskd> thomasfedb: <friskd> ? <acrussell> I a trying to build a gem but it is not finding some native libs I have installed. I can link against tese libs without a problem when I try to compile and link a C program as a test. I tried messing around<acrussell> how do I get ruby to find these libs ? <RubyPanther> friskd: ruby -r hpricot -r open-uri -e ‘puts Hpricot(open(“http://slashdot.org/”).read).inner_text’ | less <RubyPanther> Hpricot tastes great, _and_ is less filling! <RubyPanther> I love 5 year old C extensions that happily compile and work with new versions of Ruby… that is good clean code! <friskd> RubyPanther: that is is great! <RubyPanther> I think it is the opposite of what you asked, but that one is probably also trivial <friskd> o. wait. <friskd> yea. i need the html structure <friskd> not the text <sdferfx> Does nokogiri or hpricot allow us to build a tree of DOM objects? We don’t want innerhtml necessarily, we want something like Python’s etree allows where we can export the structure of the document. See http:<thomasfedb> sdferfx, yes. <thomasfedb> sdferfx, though you will need to traverse the tree <sdferfx> thomasfedb, in which library, nokogiri or hpricot or both? <thomasfedb> sdferfx, either <Jarred> Hi all. I’m trying to parse values within an XML document by its XPath using Nokogiri. Nokogiri is just returning an empty array for the given XPath. The XPath is correct — I used Firedebug to get it. Here’s <Jarred1> Sorry, my computer crashed. <ZenBalance> Jarred1: I am working with nokogiri right now as well <ZenBalance> Jarred1: have you checked your cookies? <ZenBalance> Jarred1: Some websites require that you pass a cookie as well when opening the url in order to get the correct string <ZenBalance> In my case, I’ve realized that some ID’s just don’t seem to work so I broke it down and worked around them <ceej> evening. is it possible to open a file read it into a variable and also get it’s last modified date in one File.open block? <rippa> ceej: File#mtime <ceej> rippa: can I do that inside of a File.open block though? <RubyPanther> ceej: ruby -e ‘File.open(“/proc/cpuinfo”,”r”) {|f| puts f.mtime }’ <rippa> ceej: File.open(file) {|f| [f.mtime, f.read]} <ceej> ah ty 
<ceej> you’ve made my late night <ZenBalance> Does anyone have any resource to point me to on how to throttle a scraper? <vdemedes> Hello! <vdemedes> Could you please point me to pleasure-to-work-with gem for sending GET/POST requests? <brainopia> vdemedes: https://www.ruby-toolbox.com/categories/http_clients <alem0lars> i need to create an expression parser. I toke a look at parslet, treetop, citrus getting started. Which one do you suggest me? <alem0lars> Expressions that I need to parse aren’t very complex, so I don’t need a full featured PEG <thomasfedb> alem0lars, treetop is quite good. i haven’t user the others <alem0lars> thomasfedb: Is there a more in depth documentation than in the documentation page of the official site? <thomasfedb> alem0lars, not really. <alem0lars> thomasfedb: ah ok. thanks <thomasfedb> alem0lars, sorry I couldn’t be of more help/ <alem0lars> thomasfedb: thanks anyways <banister_> thomasfedb: do u wanna try a multiplayer irb session? <thomasfedb> banister_, um… ok i guess <thomasfedb> banister_, how do we pick the winner? <banister_> thomasfedb: well, you can try to distance my irb instance <banister_> if i stop talking then you know youve won <thomasfedb> hmm <thomasfedb> so. how do we go about this? <banister_> thomasfedb: are you on 1.9.3 and on *nix ? <thomasfedb> yep * thomasfedb changes ruby version <banister_> thomasfedb: ok, just type: gem install pry-remote-em <banister_> then once that is complete <banister_> thomasfedb: i gave u l/p in PM <thomasfedb> hokay <banister_> let me know when u join <thomasfedb> banister_, is rubygems.org under high load or is it just me? <banister_> thomasfedb: yeah it seems screwy for me too <banister_> thomasfedb: bad timing 
<banister_> thomasfedb: ah well, we can give it a go another day <thomasfedb> banister_, pest. <clyfe> rubygems is down <banister_> thomasfedb: ? <clyfe> what can we do ? <banister_> clyfe: time for pr0n i guess <thomasfedb> clyfe, eat noodles and rant. <vdemedes> Hello <vdemedes> Could you please help me to solve this problem, related to inner classes http://drp.so/d49b74 <vdemedes> I created quick code snippet to demonstrate what I want <banister_> vdemedes: you cant access it <banister_> vdemedes: ruby doesnt really have inner classes <banister_> Mon_Ouie: wb monny 
<vdemedes> banister_: But how do libraries do that? For example, Twitter::Search.new, it needs access to tokens <vdemedes> how does it implement that? <banister_> vdemedes: what tokens? <vdemedes> banister_: oAuth tokens <banister_> vdemedes: well it’s obviously not working the way you think it is, so read the source <vdemedes> so, that B class is fully separate from A, right? <banister_> i have no idea what it’s doing, but it’s def. not accessing ivars from the outer class <banister_> vdemedes: yes <vdemedes> banister_: ok, thank you! <cek> hey, wazap with rackpace / rubygems.org? <fragmachine> can you use ruby for quick calculations on the command line without irb? <fragmachine> like “ruby puts “hello world”" <xea_> ruby -e “puts ‘hello world’ <fragmachine> awesome <xea_> indeed <apeiros_> or `ruby`, hit enter, type code, hit ctrl-d <fragmachine> haha that’s awesome too! <fred> apeiros_: fragmachine: ‘irb’. <apeiros_> fred: ‘fragmachine: “…without irb?”‘ <fred> oh, I’m blind, sorry. <shevy> right said fred <shevy> I’m too sexy for my … <overclucker> i’m getting ‘undefined local variable or method `exitstatus’ for main:Object (NameError)’ after these lines in my script: ‘output = IO.popen(‘xset -q’) { |pipe| pipe.gets }; $?.exitstatus’ is this a corr<fallenstorm> what func makes from number 123 string “000000123″ fixed length filled with default value? <apeiros_> fallenstorm: sprintf, to_s+ljust, maybe others <overclucker> “%08d” % integer <cek> rjust <fallenstorm> apeiros_ tnx <UidX> how do i make “rakefile” things? <UidX> “Gemfile” and “Rakefile” ? <banister_> UidX: Gemfile, Rakefile, Thorfile, .gemspec, .rspec, .travis.yml, .irbrc, there’s too much to learn! <UidX> im totally new to ruby and i made an rb file for my siriproxy plugin.. and it seems that it requires that rakefile, gemspec and gemfile <`brendan> morning all <Alcohol> Please vote http://missdv.ru/vote/566/ <shevy> hmm <shevy> as great as ruby is <shevy> something I’d wish there’d be a better language <apeiros_> shevy: create one <shevy> apeiros_ yeah I often want to, but the problem is that it takes so much effort and time. I don’t think I have that available anymore <apeiros_> <UidX> can you guys access github right now? <banister_> UidX: no <visof> hello <visof> is there random selection function for a list? <banister_> visof: sample <banister_> visof: [1,2,3,4,5.sample <banister_> visof: [1,2,3,4,5].sample <shevy> visof also array.shuffle.first could work in case .sample would not <linduxed> so i started using rbenv yesterday, and it seems like the gems aren’t working <linduxed> or well no <linduxed> not that they’re not working, they do if i do bundle exec something <linduxed> but i can’t just type cucumber <linduxed> or something like that <linduxed> is there some command i need to run to make those commads appear? <shevy> ^^^ another example why people shouldn’t use rbenv or RVM <shevy> they add a layer of complexity over a given problem <linduxed> shevy: probably, but then again it’s far easier than combating the different versions that ruby projects have <linduxed> i’m only starting out with ruby really, but the projects i’m already in contact with span over three different versions <linduxed> and then you tell me that i shouldn’t use rbenv or RVM… <linduxed> sorry but i have no idea how to do it otherwise <shevy> linduxed oh, I don’t specifically so to not use them <shevy> I mean if they solve a problem, it’s great <shevy> what you should do is try to give a better problem description. “it seems like the gems aren’t working” you should follow up on that, and also upload the result of “gem env” somewhere <shevy> for comparison, this is my “gem env” result linduxed http://pastie.org/3361251 <anjonas> hi guys <andrew_au> Hi, I used ruby on rails ages ago but completely forgotten it all, I was wondering if anyone can say if a small script is in just ruby or needs rails? <anjonas> im having trouble with using the split method <anjonas> week_meny.push(node.text.match(/MÃ¥n(.*)/).split(‘•’)) <anjonas> i get the error block in get_meny’: undefined method `split’ for nil:NilClass (NoMethodError) <shevy> anjonas you try to apply the .split method on a nil object <shevy> whatever week_meny.push(node.text.match(/MÃ¥n(.*)/) results, must be nil, so that is where your error is <linduxed> shevy: in that case my question would be the following <linduxed> i’ve used rbenv to install ruby 1.9.2-p290. along with it came rubygems 1.8.10 and most likely some other stuff. when i run “bundle show cucumber” (cucumber being one of the gems i’ve installed with bundle i<linduxed> however when i run “gem list ” i only get rdoc, rake and minitest <linduxed> i guess this is due to it being a 1.9.1 gem <linduxed> but i’m not quite sure <shevy> can’t you switch rbenv versions context? <linduxed> yes i can, let me test <shevy> I myself install ruby into /Programs/Ruby/VERSION_HERE and just change a symlink to use another version <linduxed> hmmm <linduxed> can’t switch <linduxed> when i run “rbenv versions” i only have one <shevy> I dont use either, but with rvm you can switch like so: <shevy> rvm –default use 1.9.3 <shevy> you have to find out where gem stored your gems too <shevy> for me here, all gems reside under /usr/lib/ruby/gems/1.8/cache/ <linduxed> yeah i know, i used to type “rvm use someversion” <richo> is there a teardown equivalent to #intitialize ? <shevy> but btw, since gem are just tarballed .gem files, you could locate them and install them even by managing the dependency on your own <shevy> gem install –ignore-dependencies *.gem <shevy> once you found out where your gems are that is <shevy> richo what means “teardown”? <linduxed> shevy: post-test actions <shevy> hmm <richo> teardown is the wrong word maybe, in python we use __init__() for when an object is created, and __del__ for when the object reaches refcount 0 and is gc’d <shevy> I dont think ruby has anything like __del__ <richo> technically though I may be looking for an atexit(3) hook though <richo> *shrug*, I shall deal with this later then <richo> 
<shevy> atexit can be a problem, I think it is tied down to a specific file, not an object <shevy> I could be wrong though <richo> well, the reason I may be looking for atexit is because I’d need the object to test that it’s the last instance of it’s metaclass <richo> which probably means I’m better off just binding the action to interpreter exit and leaving it as an open bug <richo> in theory, it should fire it’s exit action twice if you create an object, hose it, create another one andt hen quit <richo> but that’s an edge case I can leave for now <shevy> hmm <shevy> there are some hooks … like #included … perhaps there may be another hook for your use case <richo> it’s ok, I’ll fix all the core behavior and fix the silly little things lik eputting the users terminal back together later <linduxed> gaaah <linduxed> now when i run “bundle exec cucumber” on another computer, i get the following http://paste.pocoo.org/show/549317/ <linduxed> it looks like it’s version related, but i’m not sure <linduxed> what’s weird is that the computer on which i wrote the code has the same rbenv setup and the same ruby version installed <shevy> I think you use an old rubygems version <shevy> try the 1.8.15 one http://rubyforge.org/frs/download.php/75711/rubygems-1.8.15.tgz <Rishi_> hey guys, does pygments.rb wrap code automatically? <Rishi_> I tried passing :nowrap => false and there seems to be no effect <methoddk> ahh <linduxed> ok wtf is going on… <linduxed> bundler is not in the list when i do “gem list” <linduxed> but i can do bundler <linduxed> …. <linduxed> “bundle” i mean <linduxed> hmmm, bundle is in /usr/bin/bundle <linduxed> ooooh <linduxed> now i get it <linduxed> it’s my residual system install <linduxed> from my package manager <wroathe> So… why? 99.remainder(2) == 1 99.modulo(2) == 1 99 % 2 == 1 99.remainder(2).eql? 1 <wroathe> There are like 15 different ways you can do that expression in ruby <rippa> why not <wroathe> I would argue adding those methods for readability is basically solving a non-existant problem. <wroathe> If you can’t read 99 % 2 == 1 then you maybe shouldn’t be programming. <rippa> don’t like – don’t use <wroathe> I get that 
I’m just wondering why the core team thought that was necessary. <canton7> wroathe, there is a difference…. 99 % -2 == -1, 99.remainder(-2) == 1 <wroathe> But % and modulo are canonical? <canton7> wroathe, similarly, -99 % 2 == 1, -99.remainder(2) == -1 <linduxed> ok so ruby version hell time <linduxed> i’ve got rbenv installed <linduxed> lots of gems there, all working fine <linduxed> same with RVM some time ago, although i don’t use it anymore <linduxed> however <linduxed> some time ago i instlled ruby with my package manager <linduxed> needed it to install RVM i think, don’t remember <linduxed> the point is that this package manager tied ruby was still around <linduxed> RVM seems to override it, but rbenv doesn’t <linduxed> or at least so it seems <linduxed> because apparently when i did bundle install inside a rails director9y, directory it asked me for a password and it installed the gems into /usr/lib/ruby/….. <linduxed> now i’ve uninstalled the package manager ruby, so it now works fine as it should with rbenv <linduxed> but those gems, the /usr/bin/bundle command and most likely some other stuff are still around, untracked by neither the package mangear nor rbenv/rvm <linduxed> so my question is, how do i figure out what to remove to clean up? <gioele> It seems that webrick does not ignore the glob patterns passed in `:NondisclosureName`. Is there something that I am doing wrong? <gioele> the code is at http://pastie.org/3361756 from line 47 to 53. `p config` confirms me that the :NondisclosureName has been set to an array of strings, just like I thought, although webrick does not honors it <richo> Is there a syntax to tell ruby to continue testing criteria in a case when block? <shevy> richo how do you mean <shevy> multiple when conditions to be true at the same time? <richo> Wait, I’ll make a gist <richo> yeah, pretty much <shevy> hmm I dont think so. <richo> it’s ok, I’ll just unwrap it a bit <plato> hi guys, could anyone help me figure out why the hell i have a syntax error in this code? http://codepad.org/AeKh7uAK <plato> line 72 <plato> syntax error, unexpected ‘n’, expecting tCOLON2 or ‘[' or '.' <plato> when i require 'pastebin' <Mon_Ouie> *imported['json_data']['metakey'].each_pair do |imp_subkey, imp_subvalue| <Mon_Ouie> There should be no “*” there <plato> what is the * doing <plato> i cribbed it from http://flori.github.com/json/doc/index.html <plato> and it seemed to fail without the * <plato> awesome that worked <gioele> is there a problem with rubygems.org? I pushed two versions of my gem but “gem install servedir” fails to install it. It says «ERROR: Could not find a valid gem ‘servedir’ (>= 0) in any repository» <plato> it DOES fail without the * in a prior line, reconstructed=new(*imported['json_data']['datakey']) <plato> what does the * do <gioele> plato: make ruby use the elements of an array as a series of parameters to a function <gioele> plato: `x = [a, b, c]; fn(*x)` is equivalent to `fn(a,b,c)` <plato> that seems odd then <plato> because reconstructed=new(*imported['json_data']['datakey']) should pass exactly one parameter <plato> im surprised it doesn’t correctly import when i remove that * <plato> nvm it does. stupid error on my part <plato> thanks gioele <plato> so when i convert my Hypercard to json and back, i’m calling Hypercard.new() to build a new one <plato> b=a.to_json; c=JSON.parse(b) <plato> now a==c evaluates to false although they both contain the same information. the IDs are different. how do I override the == operator? <plato> class Hypercard; def ==; #mycode; end; end <plato> ? <plato> or is it a class method <gioele> plato: class Hypercard; def ==(other); yourcode; end; end <gioele> plato: it is an instance method, not class <richo> is rubygems toast? I’ve pushed a few gems but none of the new versions are being seen by gem(1) <gioele> richo: I have the same problem <richo> Cool, not just me then. It shows up on the site. I couldn’t even push gems earlier so hopefully it comes good soon <plato> thanks again gioele <gioele> plato: np <moshee> anybody got a link to some documentation for the VIM module for extensions in ruby? <moshee> nvm, found it <shevy> gioele usually I think it takes a while before it is available … but today the site seems to have some lag or something <banseljaj> Hi. is there a gem or library that can read XML data dumps? <gioele> banseljaj: Nokogiri can read XML <gioele> banseljaj: what do you mean with “data dump”? <banseljaj> gioele: and convert it into obects?
Feb 152012