Topic for #ruby is now Ruby programming language || ruby-lang.org || RUBY SUMMER OF CODE! rubysoc.org/ || Paste >3 lines of text in http://pastie.org || Para a nossa audiencia em portugues http://ruby-br.org/
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<geef>
whats the ruby equivalent to a=raw_input("hi") which assigns whatever you type in to var 'a' and prints 'h'?
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<robert_>
hm, so I'm trying to wrap .each in a class I'm writing, but it's not working very well :/
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<levity_island>
yep, array when you expected a hash
<levity_island>
robert_: consider the difference between some_hash.each {|a,b| something(a,b) } and some_hash.each {|x| something(x) }
<levity_island>
that's all the help i can offer at the moment
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<Banistergalaxy>
Sup
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<Excellonet>
Excello.net is looking for a web developer to join its staff. All our resources are the ones our sponsors give us, so all that is available currently are gaming gadgets from our partners Sparkle, ZOWIE and Bigfoot Networks. Is it You?
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<bitops>
hello everyone
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<robert_>
so I'm looking for a way to communicate between two threads (e.g. for a logging mechanism, of sorts)
<mksm>
robert_, queue?
<a|i>
my gem uses google protocol bugger compiler (http://code.google.com/p/protobuf/). I want to include the compiler in the gem.should the gen native extension builder simply call ./configure to compile the native code?
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<ale`>
is it possible to have a method take both optional parameters and blocks?
<bitops>
ale`: yes
<bitops>
all methods in ruby automatically can take a block
<bitops>
no declaration needed
<bitops>
e.g. def(foo, bar=nil)
<bitops>
could be called with "def 1"
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<bitops>
oops. sorry.
<bitops>
def foo(bar, baz=nil)
<bitops>
then you could call it either with
<bitops>
foo(1)
<bitops>
foo(1, 2)
<bitops>
foo(1, 2) { ... }
<bitops>
foo(1) {...}
<ale`>
and the block I would call with yield right?
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<bitops>
exactly
<ale`>
first time I use yield XD
<bitops>
haha~
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<bitops>
that's a great moment in your ruby career
<bitops>
once you start using yield, you see opportunities for it everywhere
<bitops>
it's really useful
<ale`>
I was using &block/block.call ^^;
<bitops>
ale`: right - you can do that too if you want to be really explicit
<bitops>
and is required if you want to store the block as an object
<bitops>
(at least from what I know)
<ale`>
oh, so that would do automatic block->proc conversion?
<ale`>
alright I'm getting the &business
<ale`>
:-)
<bitops>
exactly
<bitops>
if you declare a method with &block, block becomes available as a Proc object
<bitops>
which you can then store and .call
<bitops>
very useful, but also dangerous if you're not careful!
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<ale`>
mm, is there a way to convert the implicit block to a proc?
<bitops>
not as far as I know
<bitops>
if you want a proc, you could argue that it's more declarative to put it in the method signature anyway
<bitops>
that way someone reading the source for your method would understand that there's a proc object expected to be handled somewhere
<Banistergalaxy>
ale`: &block
<Banistergalaxy>
In parameter lost
<Banistergalaxy>
List
<bitops>
Banistergalaxy: if I'm following, he may mean is there a way he could not have to do that?
<Banistergalaxy>
Bitops: ok then Proc.new
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<ale`>
bitops: for some reason I'm getting an error if i "def f x,y=nil, &block" and then call f(1,2) { ... }
<bitops>
ale`: let me try...
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<ale`>
ops, I wanted to write f(1) { ... }
<bitops>
ale`: seems to work for me, let me send you a gist, one sec
<ale`>
mhmh, it's working now
<ale`>
probably some problem with the ruby shell on emacs :O
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<bitops>
ale`: works for me when I run it in my irb shell (not inside emacs)
<ale`>
working for me too now lol
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<bitops>
ale`: I find it somewhat funny that you omit parentheses in your method signature, but then use them at the end of block.call() :P
<bitops>
not that there's one right way to do it
<ale`>
bitops: indeed it's ugly
<ale`>
ahah
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<ale`>
I still have to accustom to function calls with no parameters and no parentheses.. they look like variables ^^;
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<fourcolors>
Hi. Im creating a rake task that sends out post requests. I was wondering what the best library would be in ruby to do this? Or a recommended one
<fourcolors>
maybe the latest ?
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<bitops>
fourcolors: when you say post, you mean HTTP POST requests? (assuming yes)
<fourcolors>
bitops: sorry yes, didn't know there was any other. Im sending text messages to Twilio via a rake file so need to send post requests to their API
<bitops>
fourcolors: oh no, just wanted to make sure, that's usually what people mean. :)
<bitops>
I'm a big fan of the "HTTParty" library
<bitops>
it's a gem, so "gem install httparty" will get you there
<bitops>
then you just do HTTParty.post
<fourcolors>
Oh excellent, Ill give it a try.
<bitops>
fourcolors: it's one of the best gems out there
<fourcolors>
there on github im guessing
<bitops>
IMHO
<bitops>
fourcolors: I think so, if you google "ruby gem httparty" there should be some good links that come up
<bitops>
the author writes good documentation so there should be plenty of examples for you to get started with
<fourcolors>
riiiight.. got it
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<fourcolors>
oh perfect! Wow thanks I think this is just what im looking for
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<mgorbach>
But for some reason my gem install won't find it.
<mgorbach>
It suggestions ... itself as an alternative?
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<ryanf>
l and 1 are not the same character
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<mgorbach>
Oh wow, that's embarassing. I apparently can't read.
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<mgorbach>
Thanks ryanf :)
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<i8igmac>
how can i remove 10 blank spaces from a string
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<rippa>
str.sub /\ {10}/, ''
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<i8igmac>
i never understood the usde of /\ /
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<i8igmac>
im not sure if that works
<i8igmac>
s="1 2 3 4 5 6 7 8 9 0 "
<i8igmac>
im looking to control how many single spaces i remove from a string
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<i8igmac>
i could block a string and use counters
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<i8igmac>
all my ideas for this are long and hard
<i8igmac>
would like me ten lines of code
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<burgestrand>
i8igmac: split(/ /, 10).join
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<dhs227>
Is ruby a suitable tool to write web crawler? I have a task similiar like extract movie details from imdb.com.
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<arex\>
Best way to replace nil with 0 in an array?
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<rippa>
arex\: a.map {|i| i.nil? ? 0 : i}
<dhs227>
I am Googling and found some intersting project for webcrawler and content extraction, such as RDig and mechanize, any iead?
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<arex\>
rippa: that's it - thanks!
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<RubyPanther>
dhs227: I've written a few web crawlers in Ruby, it works great.
<RubyPanther>
That said, I never get what I want from tools like mechanize, because there is always some special cases of broken/weird/non-compliant servers... I end up rolling my own with Net::HTTP
<RubyPanther>
But then, I'm also still happily using Hpricot so YMMV
<arex\>
How about sorting a hash by key?
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<fourcolors>
hi. If i have two time objects that are is different time zones, is there a way of comparing them to check to see if they are the same?
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<fourcolors>
For instance, Time1 is Pacific time Time2 is Mountain time. I want to see if they are the same and compare them
<rippa>
try Time#to_i
<rippa>
or Time#utc
<arex\>
Boohbah: thanks!
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<rippa>
I'm not sure myself how all this works
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<arex\>
Ok, how about getting the max value in a hash?
<rippa>
Enumerable#max
<rippa>
and Enumerable#max_by
<arex\>
hash.values.max i guess
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<zaargy>
i'm confusing about how i'm supposed to go about finding how libraries work like i was using dbi the other day and couldn't work out how to use it other than reading the source code..
<zaargy>
is most stuff poorly documented in ruby? in the perl days, it would just be a quick perldoc
<zaargy>
or am i missing something?
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<dhs227>
RubyPanther> Actually my task is as simple as grab web pages and extract some info. Do you happen to know any ruby tools can do that?
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<fourcolors>
So. Is there a simple way to create a new Time object if I have a Time object and a I want to change it's time zone
<fourcolors>
for instance, I have a Time object that is UTC time but I need to change it to Pacific Time then look at it's UTC time
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<sgronblo>
Is there any sense in running GC.start manually?
<sgronblo>
zaargy: It varies, some stuff has awesome documentation, some doesn't.
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<arex\>
How do I get a slice of a hash? (like 10 first)
<arex\>
I guess i can do hash.values.to_a.slice or something
<arex\>
but i'd like to get a new hash
<arex\>
a bit tiresome to build two arrays then sow them back to a hash
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<savage->
arex\: you can just say hash.first(10)
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<arex\>
oh.
<arex\>
thanks
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<arex\>
savage-: but no .last, eh? :P
<savage->
sure
<savage->
hash.last(10)
<savage->
oh you're right
<savage->
funny
<arex\>
i don't think so, hehe
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<RubyPanther>
dhs227: usually it is simple as using openuri and hpricot (or whatever that other one is called)
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<hemanth>
watir-webdriver, opens a URL and an authentication windows pops up, the code does not move further till auth, but i'm using xdo gem to send_keys; how do manage it? threads?
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<hemanth>
does not help
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<RobbieAB>
I am working on repackaging some gems as RPMs, and have a question: Can multiple versions of a gem be installed in parallel usually?
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<Tasser>
RobbieAB yep
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<RobbieAB>
Tasser: Ahh... Thanks.
* RobbieAB
cries
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<Tasser>
RobbieAB, just take the deb packages ;-)
<RobbieAB>
Tasser: :p
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<Tasser>
RobbieAB, I've no clue of rpm... never used any of those linuxes - but I can't imagine the got stricter policies than debian
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<RobbieAB>
Tasser: The major issue I am having is putting together a dependency tree.
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<RobbieAB>
I suspect gem2rpm is pretty useless which is not helping.
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<Tasser>
RobbieAB, just map the gem dependecies to rpm deps...
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<RobbieAB>
Tasser: yeah, that is vaguely the plan, it's mostly versioning that is where the fun is. :)
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<wayne>
hi.
<wayne>
why do ruby gems have a port tree in freebsd?
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<RubyPanther>
wayne: for people that have a BOFH that restricts them to stuff in ports?
<RubyPanther>
(guessing)
<wayne>
hahah i guess that makes sense
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<nobitanobi>
morning
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<JonnieCache>
super is a keyword isnt it?
<JonnieCache>
so I can't do method(:super)
<Tasser>
JonnieCache, the only thing you can do is defined?(super)
<Tasser>
JonnieCache, for anything else, got to tcl ;-)
<JonnieCache>
tcl?
<JonnieCache>
why would i want to involve tcl?
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<Tasser>
how to parse something like "32 min 38 sec"?
<canton7>
Tasser, how complex is the syntax?
<Tasser>
canton7, that's everything there is
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<canton7>
/(\d+)\s?min\s?(\d+)\s?sec/ would do that example
<Tasser>
oke
<canton7>
allowing for arbitrary amounts of whitespace. If you want to allow the user to skip the mins bit of the secs bit, you want something like /(?:(\d+)\s*min)?\s*(?:(\d+)\s*sec)?/
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<canton7>
sorry, first example should have been /(\d+)\s*min\s(\d+)\s?sec/
<canton7>
ahem, /(\d+)\s*min\s*(\d+)\s*sec/
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<arex\>
I have a string - how can I measure it in bytes?
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<arex\>
string.bytes.to_a.length?
<rippa>
string.size
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<arex\>
thanks
<arex\>
hm
<arex\>
string.bytesize maybe
<rippa>
maybe
<arex\>
yup
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<Tomasso>
why would you use smth like halcyon, if you can manage for example sinatra to return json with smth like Object.to_json ?
<Tomasso>
(regarding web frameworks)
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<pigdude>
Tomasso, maybe some people enjoy having to end every method with `ok`
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<Tomasso>
i will choose sinatra then.. also i see there is no that much support on halcyon
<Tomasso>
thanx
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<andreime>
hello i have a question about testing with rspec: if i have a file where i keep just two functions, something called common... , how can I test the two functions ?
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<helllen>
helllo
<helllen>
how could I convert fix CIDR network format ?
<helllen>
for example 192.168.100.4/24 to 192.168.100.0/24
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<deryl>
what gem or require does that use? (if I may)
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<deryl>
ahh gem install netaddr - thought it might have been part of core
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<yekta>
If I have list = ["a", "b", "c"] and I need to get result = "'a', 'b', 'c'" how is the best way to do that in ruby? a join('", "') misses the first and last node
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<Hanmac>
list.map{|s| "'{s}'"}.join(", ")
<yekta>
hmm, interesting
<Tasser>
Hanmac, you forgot a # there
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<Hanmac>
yeah ups
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<orange33>
Hi, has anybody had any problems lately with installing rvm on Linux (Ubuntu and Arch)? I've been having some problems with it the last couple of days.
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<orange33>
Possibly libssl-dev package-related.
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<arex\>
Anyone with ruport experience?
<arex\>
Or maybe there's a native solution to this...
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<Tasser>
orange33, arch and -dev ?
<deryl>
actually the issue isn't RVM it is the rubyies
<arex\>
I have a a multidimensional array (table) with a lot of data. I'd like to sort and get a top 10, but it's so slow.
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<deryl>
for some reason the rubies are not building for him. we've not gotten any other reports about it thus far. so its specific to his system(s)
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<Tasser>
arex\, create your own index with a hash?
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<arex\>
Tasser: What do you mean?
<orange33>
deryl, Tasser: Thanks. I've tried with two providers (Rackspace and Linode) and three distros with just the basic dev dependencies installed.
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<Tasser>
orange33, archlinux doesn't have -dev packages
<orange33>
Two different Ruby 1.8.7 patch versions and one 1.9.2 version were hanging during rvm's compilation phase.
<Tasser>
arex\, improve your data structure to make it faster
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<orange33>
Tasser: I only traced to that package on Ubuntu, but the behavior was the same on both distros (hang during rvm ruby compile).
<arex\>
Tasser: Indeed. But how?
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<Tasser>
orange33, build-essentials
<Tasser>
arex\, indexes, hash-based matrix
<orange33>
build-essential always included.
<Tasser>
check that
<orange33>
All dependencies appear to be met (I always installed build-essential specifically).
<Tasser>
kk
<orange33>
At one point on Ubuntu I could toggle the problem by alternately adding and removing the package libssl-dev, while purging and reinstalling rvm.
<Tasser>
ahhh right, the ssl guys once changed headers which generated a bug when compiling ruby
<orange33>
My 1.8.7 install would hang with that package installed, but would finish without it being installed (again, purging between attempts).
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<orange33>
I tried the openssl recommendation on rvm's site but that stalled, too.
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<orange33>
But it's (apparently) just me, which doesn't make sense since these are all fresh server instances each time, with only the most vanilla, basic supporting packages installed.
<orange33>
While rvm output says "(blah) compiling" and hangs, yet the gcc process is no longer running. It just stalls.
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<Tasser>
wtf?
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<orange33>
Tasser: Two days of my life. ;)
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<Tasser>
orange33, probably start asking C guys
<arex\>
hmm
<Aristata>
orange33: Have you updated rvm?
<orange33>
Tasser: Thanks. I just don't understand why with such a basic configuration (I can reach the problem state in like ten minutes from a new server instance), others aren't seeing the same problem. So I suck. ;)
<orange33>
Aristata: Each test case starts with a fresh install of the dev (not stable) version of rvm.
<Tasser>
orange33, or the servers got a strange configuration
<Tasser>
orange33, just go with the installed ruby in archlinux ;-(
<deryl>
i hate to say it orange33 but I believe Tasser is right. Neither michal nor I can reproduce this
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<orange33>
Tasser: I'm sure you know more about it than I do, it's just weird to have seen it on two different providers with two different distros (and two versions of Ubuntu).
<Tasser>
export GEM_HOME="$HOME/.gem/ruby/1.9.1"
<Tasser>
export GEM_PATH="$GEM_HOME"
<deryl>
thats why we sent you here. Not they *can* solve it, just that they have a better chance at it
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<orange33>
I'm grateful for the help. I'll keep trying...
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<deryl>
my apologies for pushing him here, you guys. Just, as I said, we can not reproduce it, and this channel knows much more deeply the internals of ruby and its build process. Since we can't reproduce it, we figured him coming here would be his best shot, if any.
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<billy_ran_away>
Can I do character classes in negative look behind in Ruby's regex, example /(?<!f[^o]*)bar/
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<StephenS>
can I develop webpage with ruby? Or I must to use ruby on rails?
<csmrfx>
u can use jekyll
<davidcelis>
or sinatra
<davidcelis>
or you can write your own webserver
<davidcelis>
but glwt
<StephenS>
good pointg
<StephenS>
screw this crap
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<StephenS>
Imma gonna learn c++ and write my own language
<csmrfx>
have you learned lisp?
<StephenS>
and earn some cash like Yukihiro Matsumoto
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<arex\>
wow, rails has a lot of gems
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<Amirh>
I just built my first rake file. that was amazing! :D
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<Okasu>
Amirh: congratz
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<Amirh>
thanks
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<orange33>
Tasser, deryl: Is there a known set of instructions I can follow to get rvm installed, so I can confirm I'm not doing something stupid. For example, I just fired up a fresh, untouched Arch Linux instance. If I install the minimum required dependencies, it should work, right?
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<orange33>
I started from a fresh Arch instance, and managed to stall out rvm's 1.8.7 compile again. Here's basically everything I did: https://gist.github.com/1590438
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<orange33>
Just a minimal install, following recommended steps. I must be missing something.
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<orange33>
The packages installed were just base-devel and those recommended by 'rvm requirements' (shown).
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<orange33>
The output section shows where the install hangs, on #compiling. At this point the gcc process is no longer running. make.log shows that it always stalls at the same step.
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<Lann>
Can somebody help me figure out how to access id_str in the following structure that is output with myobject.inspect: http://pastebin.com/zYgp2igg using myobject['id_str'] returns null.
<Lann>
I suppose my real qustion is how do i access something within @attrs
<apeiros_>
Lann: depends on the implementation of Twitter::Status
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<apeiros_>
tried myobj.id_str ?
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<savage->
apeiros_: welcome back!
<Lann>
hehehehehe, no
<savage->
apeiros_: I found another way to find duplicates in lists, hang on. :)
<apeiros_>
alternatively: myobj.attrs['id_str']
<apeiros_>
howdy savage-
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<visof>
apeiros_: i'm trying to write functions that got all permutations os astring , but i got errors, can i explain what i do and what i want and what the errors i got?
<apeiros_>
too deep: after recursing a couple of thousand times, you'll be too deep and cause rubys frame stack to explode.
<apeiros_>
visof: rearrange your problem to solve it as an iterative problem.
<apeiros_>
can be done with every recursively solved problem.
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<ReinH>
apeiros_: if only Ruby did TCR
<maletor>
Why does array.respond_to?(:total_pages) return false but array.total_pages return 624
<apeiros_>
ReinH: the code is there. it's inactive, though.
<ReinH>
maletor: probably because it's not an Array
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<apeiros_>
maletor: yes, as said, if you have method_missing, you *should* implement respond_to_missing? too
<apeiros_>
and they haven't
<apeiros_>
ah, haha, and they removed respond_to?…
<mythmon>
ReinH: that looks like a good book, though I was hoping for an online resource.
<maletor>
apeiros_: how should i write this class correctly?
<maletor>
now i need both respond_to and respond_to_missing?
<ReinH>
mythmon: non-trivial online resources are somewhat limited
<v0n>
hi
<ReinH>
there's the pickaxe but it's Ruby 1.8, and there's Chris Pine's Learn To Program but it's below your level
<apeiros_>
maletor: depends on your compatibility needs
<v0n>
this question seems easy but... with the 'mail' gem, how to append some text to a mail body?
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<mythmon>
ReinH: is there a big enough difference between 1.8 and 1.9 that pickaxe would be unhelpful?
<ReinH>
mythmon: it would be helpful
<maletor>
apeiros_: needs to work with 1.8.7
<ReinH>
but you'd want to check some things against the 1.9 API when they don't work
<ReinH>
the general principles are still valid
<mythmon>
also, my target is ruby 1.8 anyways, so thats not a huge deal.
<ReinH>
ok
<ReinH>
although tbh you should target 1.9
<ReinH>
the future is now, etc
<ReinH>
1.9 offers significant performance increases and some useful features
<mythmon>
well, sure. but this is for a class, and the machine the code must run on only has 1.8.
<ReinH>
wah wah
<ReinH>
the pickaxe would suit then
<mythmon>
we might be able to get 1.9 installed by the admins, but I don't expect it.
<mythmon>
thanks for the advice.
<apeiros_>
maletor: then you implement respond_to? and you change line 5 to remove a couple of methods less. the latter part is arguable, but IMO you shouldn't undef .inspect and .class
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<ReinH>
mythmon: np
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<ReinH>
o_O
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<maletor>
apeiros_: do you think you could show me
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<apeiros_>
maletor: def respond_to?(*args); super || @collection.respond_to?(*args); end
<apeiros_>
in 1.9, it'd be: def respond_to_missing?(*args) @collection.respond_to?(*args); end
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<asteve>
next unless var; what will that skip through?
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<asteve>
assuming var has some value not nil or false
<maletor>
apeiros_: i'll let you know
<apeiros_>
maletor: about?
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<apeiros_>
asteve: I don't get your question…
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<maletor>
apeiros_: that respond_to? did not work
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<maletor>
returns false
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<apeiros_>
maletor: it should. I could have made a mistake. alternatively, it could be, that @collection is an object, that fails to properly delegate as well…
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<apeiros_>
maletor: aaah, no, you put it into the private section
<apeiros_>
that, of course, makes it useless :)
<apeiros_>
but interesting, it never occurred to me to make method_missing private.
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<Keva161>
sorry to be a newb but this code is giving me an extra space in my terminal after the number is entered and I figure out why.. http://pastebin.com/rAp6Cysx
<apeiros_>
maletor: what's the symptom now?
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<maletor>
respond_to(:total_pages) => false
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<canton7>
Keva161, extra space?
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<apeiros_>
maletor: respond_to != respond_to?
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<canton7>
Keva161, I have to press enter twice, but looks well-formatted... What am I missing?
<apeiros_>
that one upfront. having run the code myself tells me that you either forgot to reload your code or are doing something else differently than you tell me.
<apeiros_>
your actual symptom should be "NameError: superclass method `respond_to?' disabled"
<Keva161>
I don't understand where the extra space might be
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<apeiros_>
and that'd be because you still undef respond_to?
<canton7>
Keva161, *what* extra space? What output are you getting, and how is it wrong?
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<Keva161>
This room is full of gold. How much do you take?
<Keva161>
> 12
<Keva161>
<SPACE>
<Keva161>
Why so little 12?
<maletor>
apeiros_: sorry that was copy paste fail
<maletor>
apeiros_: i meant respond_to?(:total_pages) => false
<canton7>
Keva161, you have two calls to gets(), so you have to press enter twice, and so two newlines appear in the terminal
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<Keva161>
ahh
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<Keva161>
thank you!
<apeiros_>
senny: because it looks it up on toplevel
<apeiros_>
senny: try self::NonExistingConstant
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<senny>
apeiros_: is there a way to define an anonymous class and get the lookup to behave correctly?
<apeiros_>
constant lookup in a class_eval block works different
<apeiros_>
I don't think so, no
<apeiros_>
(constant lookup *does* behave correctly, just not the way you want it to…)
<senny>
apeiros_: let's say not as "expected" ;)
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<senny>
apeiros_: I have to test a library which is using const_missing. My unit-tests have to create a new class for every example so I wanted to stick to anonymous classes to keep the namespace clean. Do you have a hint how I would set that up?
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<apeiros_>
you can use class_eval with a string instead of a block
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<senny>
apeiros_: these are integration-specs which should demonstrate the functionality of the library, having all the code in string would be sad but I see this is going to be a work-around.
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<apeiros_>
senny: ? as oposed to have all the code in a block?
<senny>
apeiros_: one last question, is there a way to set the scope where "class XXX" would define the class? so that I could inject a dynamic module to namespace everything?
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<apeiros_>
no. you can do something like that partially by e.g. modul_eval'ing the code in question. again, only works with a string.
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<senny>
apeiros_: thanks a lot for your assistance!
<apeiros_>
senny: I'm not really sure what you try to do, but I get the feeling that you're looking at the problem from the wrong side
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<senny>
apeiros_: If you have some more time I can setup a gist to illustrate the whole problem...
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<apeiros_>
senny: I'm sorry, not today
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<senny>
apeiros_: ;) thanks for the heads-up though
<apeiros_>
yw
<apeiros_>
senny: maybe this helps: since const_missing is inherited, you can trigger it with: Class.new(ClassImplementingConstMissing).const_set(:SomeName, "foo")
<tesmar>
is 1.9.3 "solid"?
<apeiros_>
errr, s/const_set/const_get/, and only 1 arg
<apeiros_>
tesmar: 1.9.3 is production
<apeiros_>
if that's what you mean by 'solid'
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<tesmar>
yeah
<tesmar>
is it ready for primetime large app production?
<tesmar>
esp w\ Rails
<apeiros_>
we have rails apps running on 1.9.3. not our big ones yet, though.
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<tesmar>
any issues so fare?
<tesmar>
far?
<senny>
apeiros_: yea the problem is, the library I am testing uses const_missing internaly to build a nice dsl. it would miss the point to write the test in a different manner than production code just to satisfy the const-lookup in anonymous classes
<apeiros_>
none related to 1.9.3, no
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<apeiros_>
senny: then maybe do: module Context; end; class Context::YourTestClass < …; …testcode…; end; and in the teardown: Context.send :remove_const :YourTestClass
<v0n>
Convention question: for a module which will add a new "duplicate" method, is it better to call it ::Duplicate or ::Duplicatable?
<senny>
apeiros_: yes thats what I'm headed for right now
<apeiros_>
v0n: following Enumerable and Comparable, I'd say the latter.
<v0n>
apeiros_, thanks
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<orange33>
Is ruby-debug working on 1.9.3? I thought I encountered problems when I tried it...
<orange33>
(with the usual 1.9 adjustments that worked on 1.9.2)
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<apeiros_>
no idea, I don't use ruby-debug.
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<forio>
hello guys i know that this is not the right channel but... please you can give me an hint ?
<forio>
in a KDtree i can use as nodes nominal variables ? and permor test on Edit distance wikipedia/editdistance ? i mean vector1.dimension1 < or > vector2.dimension2 ?
<forio>
*perform
<confounds>
forio you can use anything you like
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<forio>
ok good thank you for the answer
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<forio>
confundus last question please just tell me true or false
<forio>
hello guys please i need help, in dbscan how many time i need to calculate the distance matrix ? i think that it is just 1 time it is true ?
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<patrick99e99>
hey ruby buddies... quick question. If I have a module included in a class, and say that module has a method called foo... And I define a method called foo in my class-- Is there a way to call super in the defined method of my class and have it go to the module? I realize that's not really "super"ish.. but wondered if there's such a way to do it? I suppose the method in my class could call the module's method directly?
<patrick99e99>
is that the way to go?
<patrick99e99>
include Bar; def method_in_bar; Bar::method_in_bar; end; ?
<apeiros_>
you just call super
<apeiros_>
what you described actually works. just like that.
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<apeiros_>
included modules end up in the class' ancestry, thus its methods are invokable by super.
<patrick99e99>
oh
<patrick99e99>
ok
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<patrick99e99>
cool.. thanks
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<patrick99e99>
apeiros_: it's so weird-- I can't seem to get this to work.. I am trying to add some functionality to a helper method in a gem.. So in the gem, Devise::Controller::Helpers has defined a method "sign_in", and another class calls sign_in... So I added my own sign_in method to my class that inherits from devise's controller.. but when I call super in it, it says "NoMethodError Exception: super: no superclass method `create' for #<Users::SessionsControlle
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<shadoi>
sounds like the create method is not inherited and the super method calls it.
<withanx>
any logic-minded folk want a to help me out? I'm trying to build a method that will sort an array of arrays into columns without splitting the arrays and having the total number of items in each column as close as possible
<apeiros_>
"if a few of those a blank" <-- ?
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<apeiros_>
withanx: I don't understand the second part of your question
<iamjarvo>
apeiros_: so that record is a user that made a profile but then deleted all the data and left them blank
<apeiros_>
withanx: maybe make an example in/output on pastie?
<shevy>
iamjarvo if you want to test if a string is "" empty or not you can use string.empty?
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<withanx>
apeiros_: sure
<apeiros_>
iamjarvo: I don't understand where your problem is. define a Profile#empty? method that performs the check you want to do…?
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<iamjarvo>
eh the way its coded is sort of weird the person is doing unless field.blank? print contents. should i do if field.blank message else whats in the field
<iamjarvo>
would be so many ifs
<a|i>
does it make sense to put a whole native library inside a gem?
<iamjarvo>
so i was thinking if all the fields are blank i can check that just render a diff partial
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<apeiros_>
withanx: by what logic does that get grouped?
<withanx>
apeiros_: basically I have some grouped data that I need to display in 3 columns, and I'd like the columns to be as even as possible without spilling over the groups to a new column
<withanx>
ordering doesn't matter
<withanx>
"spilling over the groups" = breaking up the array items
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<iamjarvo>
i think i will just try and claen it up
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<withanx>
iamjarvo: that haml?
<apeiros_>
iamjarvo: for something similar, I use a helper that'd be used like that: placeholder(profile.email, "E-Mail is blank")
<withanx>
iamjarvo: If you're using MVC, I usually use presenters which is a view-specific logic layer
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<iamjarvo>
thanks guys
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<zalesz>
hi ~
<zalesz>
anyone been using ruby/opencv ?
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<withanx>
apeiros_: any ideas?
<apeiros_>
withanx: not really, sorry
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<withanx>
yeah, it's kinda tricky, everything I'm able to come up with seems really slow and ugly
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<apeiros_>
withanx: with n columns and m items to put into these columns, there's n**m combinations. the naive solution would be to iterate over them all and find the one with the smallest difference between each col's size
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<Okasu>
where i can find plural and singular variables and for what it?
<apeiros_>
Okasu: hu?
<Tasser>
Okasu, huh?
<Okasu>
im remeber only that i can define var in plural form and then use it somewhere in singular form
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<apeiros_>
Okasu: I think you're confusing rails and ruby
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<apeiros_>
and variables with methods and/or model-names
<Okasu>
apeiros_: can you give an example?
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<apeiros_>
I can't. there is no such thing in ruby.
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<apeiros_>
ruby doesn't care about english, or plurals/singulars.
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<Okasu>
meh, it's my imagination, sorry
<Hanmac>
you can alias the methods, but normaly it does not exist any automatic
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<banisterfiend>
shevy: i didnt think germans were so poetic
<banisterfiend>
i just thought you guys built motorcars and household appliances
<shevy>
hmmm sometimes the origin of words is confusing
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<heftig>
lightbulb comes from the shape as well
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<banisterfiend>
sure but it's not nearly as poetic or sweet as 'glowing pear' ;)
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<Tasser>
banisterfiend, and kindergardens?
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<banisterfiend>
Tasser: haha tha'ts cute too
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<heftig>
headlight is scheinwerfer. werfer means "thrower". schein means glow, light, gleam, certificate, ticket, (bank)note
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<banisterfiend>
heftig: schein is word under a lot of strain
<banisterfiend>
;)
<shevy>
schein has a mystic meaning here
<shevy>
it's like a super halo!
<shevy>
der Heiligenschein
<heftig>
banisterfiend: you've seen nothing yet. the words with the most meanings are "Läufer", "Bank", "Brücke", "Atlas", "Flügel", "Schlag", "Zug" and "Feder"
<heftig>
at least according to wikipedia
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