R.I.P. my grandfather

1923/03/23 - 2012/03/23

Ignore case partially in Ruby

Try phosphorescence: Ignore case partially in Ruby

$ irb
irb(main):001:0> /(?i:a)bc(?i:d)/ =~ "AbcD"
=> 0
irb(main):002:0> $~
=> #<MatchData "AbcD">
irb(main):003:0> /(?i:a)bc(?i:d)/ =~ "abcd"
=> 0
irb(main):004:0> /(?i:a)bc(?i:d)/ =~ "Abcd"
=> 0
irb(main):005:0> /(?i:a)bc(?i:d)/ =~ "abcD"
=> 0
irb(main):006:0> /(?i:a)bc(?i:d)/ =~ "ABCD"
=> nil

Search reference documentations with DuckDuckGo

DuckDuckGo is a search engine recommended by Linux Mint and PC-BSD. The features of DuckDuckGo are:

• Aggregates results of Google, Bing and so forth
• Able to copy link directly in result pages
• DO NOT TRACK

And, one more useful feature for IT developers is "Reference Zero-click Info Sources". For instance, DuckDuckGo show results for supported language and for supported command like below:

Please Check supported languages and commands in this page.

But, DuckDuckGo also show results for unsupported languages in its own way if you use ! notations:

If you favorite this, please type https://duckduckgo.com/ or ddg.gg in your address bar!

Gel button with mini_magick

"Gel Button" is also popular effect. And of course, mini_magick can do this effect.

require 'mini_magick'

image = MiniMagick::Image.open("http://duckduckgo.com/spread/spread4.png")
width = image[:width]
height = image[:height]
image.write 'spread4.png'

image_cloned = MiniMagick::Image.open('spread4.png')
image_cloned.combine_options do |mogrify|
  mogrify.alpha 'off'
  mogrify.blur "#{width}x#{height}"
  mogrify.shade "#{width}x#{height}"
  mogrify.normalize
  mogrify.sigmoidal_contrast '8,60%'
  mogrify.evaluate 'multiply', '.5'
  mogrify.roll "+0+#{(height*0.05).to_i}"
end
image_composed = image_cloned.composite(image) do |c|
  c.compose 'Screen'
end

image_composed.write 'gel_spread4.png'

This is the original image (from Duck Duck Go).

And, this is the converted one.

Windows 8 customer preview and ASP.NET MVC4

2 weeks ago, Windows 8 customer preview and Visual Studio 11 beta had been released. The most notable feature for me is that Visual Web Development supports ASP.NET MVC4 by default. Now I'm learning.

Update summaries of PostgreSQL Conference 2012

I update summaries of PostgreSQL Conference 2012.

phosphorescence: PostgreSQL Conference 2012

Timetables of AsiaBSDCon 2012 are revealed

AsiaBSDCon 2012 are revealed now.

• Timetable in English
• Timetable in Japanese

The most interest session for me is about PC-BSD.

T2B: Maintaining your own PBI package repository

MariaDB 5.3.5 has been released

A few days ago, MariaDB 5.3.5 has been released. MariaDB 5.3.5 is the first stable release of 5.3.x. And, this release is useful for windows user (Let's check this improvements).