Vidul Nikolaev Petrov

Sorting an Array of Hashes with unknown keys

Posted by root Sun, 20 Jul 2008 03:46:00 GMT

AoH = [{"z"=>26}, {"g"=>7}, {"r"=>18}, {"a"=>1}, {"v"=>22}]

# sort by key
AoH.map{|e| e.to_a.flatten}.sort{|x,y| x[0] <=> y[0]}
# sort by value
AoH.map{|e| e.to_a.flatten}.sort{|x,y| x[1] <=> y[1]}

Posted in Ruby | Tags sort | no comments

Bulgarian-English command line tool (using sa.dir.bg)

Posted by root Sat, 19 Jul 2008 21:59:00 GMT

#!/usr/bin/env ruby

require 'tempfile'
require 'net/http'

arg =  ARGV[0].chomp
url = 'sa.dir.bg'
h   = Net::HTTP.new(url, 80)

resp,data = h.get("/cgi/sabig.cgi?word=#{arg}", nil )
outtmp    = Tempfile.new("translator")

outtmp << data.to_s
outtmp.rewind
puts %x[html2text "#{outtmp.path}"]

__END__

Posted in scripts | Tags tools | no comments

to truncate or not?

Posted by root Thu, 10 Jul 2008 14:44:00 GMT

# RoR source code:
# File vendor/rails/actionpack/lib/action_view/helpers/text_helper.rb, line 34
def truncate(text, length = 30, truncate_string = "...")
  if text.nil? then return end
  l = length - truncate_string.chars.length
  text.chars.length > length ? text.chars[0...l] + truncate_string : text
end

# My point of view:
def truncate(text, _length = 30, truncate_string = "...")
  text[0..(_length-1)] + truncate_string
end

Posted in Ruby | Tags RoR | 2 comments

Enigma

Posted by root Wed, 09 Jul 2008 22:40:00 GMT

Here’s the mirror
Behind there is a screen
Turn around
On both ways you can get in
The experience of survival
Look around just people, can you hear their voice
Find the one who’ll guide you to the limits of your choice
The experience / of survival
Try to think about it …
That’s the chance to live your life and discover
Try to think about it
The experience of survival
The experience …
The experience of survival
The experience …

Posted in programming | Tags Enigma | 1 comment

WEB 2.0 In NY

Posted by root Wed, 09 Jul 2008 20:08:00 GMT

Posted in programming | Tags web | no comments

TRAC - change SVN repository

Posted by root Tue, 08 Jul 2008 00:26:00 GMT

Go to your TRAC project dir and issue the following commands:
1. cd to_your_trac_project_dir
2. ruby -i -pe ’$_.sub! /(repository_dir\s=\s).+/, “repository_dir = NEW_repository_PATH”’ trac.ini
3. trac-admin . resync

Posted in scripts | Tags SA | no comments

regexp on String object

Posted by root Sun, 06 Jul 2008 11:04:00 GMT

Some of the more rarely used string methods:

str = "the tester"

str["tester"]        #true, the String contains "tester"
str[/\w+\s\w+/] #true, the String matches the regexp

str[/(\w+)/] = ($1[0] - 32).chr

Posted in Ruby | Tags string | no comments

Google calculator response to "once in a blue moon"

Posted by root Fri, 04 Jul 2008 13:46:00 GMT

Results in the following:

once in a blue moon = 1.16699016 × 10-8 hertz

Can be tested here

Tags Google | no comments