I may have missed it, but I didn't see this solution:
require 'enumerator'
"Hello world!\n".enum_for(:each_byte).inject($stdout){|res, b| res << b.chr}
Which in 1.9 looks much better:
"Hello world!\n".each_char.inject($stdout){|res, c| res << c}
Stefano
Here's another in a similar vein to my previous one (oh for the good old days...)
charset= {
:h=> [130,130,130,254,134,134,134,0],
:e=> [254,128,128,248,192,192,254,0],
:l=> [128,128,128,192,192,192,254,0],
:o=> [126,130,130,134,134,134,252,0],
:w=> [130,130,130,150,150,150,108,0],
:r=> [252,130,130,252,194,194,194,0],
:d=> [252,130,130,194,194,194,252,0],
:space=> [0,0,0,0,0,0,0,0]}
msg= [:h,:e,:l,:l,:o,:space,:w,:o,:r,:l,:d]
def to_pixels val
val.to_s(2).rjust(8,'0').gsub('0',' ').gsub('1','X')
end
0.upto(7) do |line|
msg.each do |ch|
print to_pixels(charset[ch][line])
end
puts
end
Cheers,
Dave
Here's my simple method_missing one :
class H
@acc = 'H'
def H.bang!
puts @acc << " !"
end
def H.method_missing(m)
@acc << m.to_s.sub(/_/, ' ')
self
end
end
H.e.l.l.o._.W.o.r.l.d.bang!
Fred
Le 01 mars à 01:06, Matthew D Moss a écrit :
--
Watch me, I'm coming closer I am the mood you're in tonight
Pretty poser, perfect armageddon bride I am a circle, it feels right
I am the one who swallows light Multiplying parasite
Perfect features, perfect sight (K's Choice, Hide)
A few basic ones that I haven't seen anyone submit yet.
#unicode
puts [72, 101, 108, 108, 111, 44, 32, 87, 111, 114, 108, 100, 33].pack('U*')
#longs.
puts [1214606444, 1865162839, 1869769828, 555753482].pack('N*')
#deltas.
c=0
puts [72, 29, 7, 0, 3, -67, -12, 55, 24, 3, -6, -8, -67].map{|i| (c+=i).chr}*''
-Adam
On 2/29/08, Matthew D Moss <matthew.moss@gmail.com> wrote:
Your task this week is to print "Hello, world!" to standard output
using Ruby in atypical fashion.
FYI, the summary is running a little late due to some personal
circumstances. It will show up later tonight or Friday morning.
How did you do that???
Amazing.
R.
On Sat, Mar 1, 2008 at 5:54 AM, Bill Kelly <billk@cts.com> wrote:
Greetings!
Here's the result of my quiz solution(s) so far:
$ ruby 158_hello_world.rb
Hello, World!
Hello, World!
Hello, World!
Hello, World!<grin>
Regards,
Bill
--
http://ruby-smalltalk.blogspot.com/
---
Whereof one cannot speak, thereof one must be silent.
Ludwig Wittgenstein
I love the maze !
Can ruby solve it ?
Isn't that better suited for a pure functional language ?
2008/3/2, Bill Kelly <billk@cts.com>:
Greetings,
My quiz solution(s) are here:
http://tastyspleen.net/~billk/ruby/quiz/158-hello-world/158_hello_world.rb
I did five Hello World variations. Thus, the output of the program
when run, is simply:Hello, World!
Hello, World!
Hello, World!
Hello, World!Hello, World!
I think I had the most fun with #4, the maze solver:
m = <<MAZE
###+---+---+
^ H| l| o|
#| e| l| |
#+---+-+-+ |
#| d !*| , |
#| +--++ -+#
#|l | _ |#
#+--+ +-+ |#
####|r |W|#
##+-+- -+ |#
##| o |#
##+--+----+#
MAZERegards,
Bill
Wow. Your solutions are quite creative!
T.
On Mar 2, 5:21 pm, "Bill Kelly" <bi...@cts.com> wrote:
Greetings,
My quiz solution(s) are here:
http://tastyspleen.net/~billk/ruby/quiz/158-hello-world/158_hello_wor\.\.\.
I did five Hello World variations. Thus, the output of the program
when run, is simply:Hello, World!
Hello, World!
Hello, World!
Hello, World!
Hello, World!
Awesome!
On Sun, Mar 2, 2008 at 11:21 PM, Bill Kelly <billk@cts.com> wrote:
Greetings,
My quiz solution(s) are here:
http://tastyspleen.net/~billk/ruby/quiz/158-hello-world/158_hello_world.rb
Jesse Merriman wrote:
## attempt 3
class Hello
def method_missing m; print m; self; end
endHello.new.H.e.l.l.o.send(', ').w.o.r.l.d!.send("\n")
A variation:
def method_missing(*a) print *a end;h.e.l.l.o(", ").w.o.r.l.d("!\n")
--
vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407
Nice.
Todd
On Sun, Mar 2, 2008 at 9:05 PM, Justin Ethier <justin.ethier@gmail.com> wrote:
Here's my solution:
hello, world = "", 2645608968345021733469237830984
(hello << (world % 256); world /= 256) until world == 0
puts hello
require 'net/http'
require 'uri'
#
# Google knows everything 
#
gke_url = URI.parse("http://www.google.com")
gke = Net::HTTP.start(gke_url.host, gke_url.port) { |http|
http.get("/search?q=ruby%20quiz%20158")
}
puts gke.body.match('\[<b>QUIZ<\/b>\]\s(\w+, \w+).+as often as you can(\W)')[1..2].join("")
Here's one:
puts DATA.read
__END__
Hello, World!
Best regards,
Jari Williamsson
Hello,
Sorry that this reply seems simple, but ruby is the first programming
language I've learned and I've only been practicing it for a few weeks.
this is what I came up with:
def hello
a = ["H", "e", "l", "l", "o", ",", " ", "W", "o", "r", "l", "d", "!"]
puts(a[0]+a[1]+a[2]+a[3]+a[4]+a[5]+a[6]+a[7]+a[8]+a[9]+a[10]+a[11]+a[12])
end
hello
--
Posted via http://www.ruby-forum.com/.
Rubén Medellín wrote:
On Feb 29, 6:06 pm, Matthew D Moss <matthew.m...@gmail.com> wrote:
The three rules of Ruby Quiz 2:
Please, don't ask me HOW i can sleep at nights....
Great. Now I can't sleep %-P
--
vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407
Rubén Medellín wrote:
The three rules of Ruby Quiz 2:
Please, don't ask me HOW i can sleep at nights....#--- BEGIN scary stuff
<snip>
#-- END scary stuff
I declare you the winner. Even though this isn't a competition. I thought there was something really messed up with the formatting until I actually ran it.
Wow. Many kudos to you.
-Justin
On Feb 29, 6:06 pm, Matthew D Moss <matthew.m...@gmail.com> wrote:
My 2 solutions:
['h','e','l','l','o',', ','w','o','r','l','d','!'].inject{|v, m| v + m}
# ---
module Hello; def self.included(klass); klass.hello ', world!'; end; end
class World
def self.method_missing(method_name, *args)
puts method_name.to_s + args[0]
end
include Hello
end
Regards.
--
"Computer science education cannot make anybody an expert programmer any more
than studying brushes and pigment can make somebody an expert painter."
(Eric Raymond)
+-------------------------------------+
Gastón Ramos
GNU/Linux Counter user #450312
Maybe, but I'd like to see some benchmarks myself...
Fred
}:>
Le 1 mars 2008 à 13:25, Robert Dober a écrit :
On Sat, Mar 1, 2008 at 5:54 AM, Bill Kelly <billk@cts.com> wrote:
Greetings!
Here's the result of my quiz solution(s) so far:
$ ruby 158_hello_world.rb
Hello, World!
Hello, World!
Hello, World!
Hello, World!
How did you do that???
Amazing.
--
If you see a long line of rats streaming off of a ship, the correct
assumption is *not* "gosh, I bet that's a real nice boat now that those
rats are gone". (Mike Sphar in the SDM)
Hi,
I love the maze !
Can ruby solve it ?
The code to solve the maze is included in the quiz solution, here:
http://tastyspleen.net/~billk/ruby/quiz/158-hello-world/158_hello_world.rb
See: Variation 4: Ambulatory greeting
Isn't that better suited for a pure functional language ?
Although I have books on Haskell and Erlang, I have only tinkered
with functional programming so far. However, there is definitely
nothing uncommon about solving mazes in an imperative programming
style.
The algorithm I used in the quiz was a very simplistic, non-recursive
breadcrumb approach.
Regards,
Bill
From: "Gaspard Bucher" <gaspard@teti.ch>
require 'net/http'
require 'uri'#
# Google knows everything
#gke_url = URI.parse("http://www.google.com")
gke = Net::HTTP.start(gke_url.host, gke_url.port) { |http|
http.get("/search?q=ruby%20quiz%20158")
}
puts gke.body.match('\[<b>QUIZ<\/b>\]\s(\w+, \w+).+as often as you can(\W)')[1..2].join("")
Excellent !
