Friday, March 23, 2012

R.I.P. my grandfather

1923/03/23 - 2012/03/23

Tuesday, March 20, 2012

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

Saturday, March 17, 2012

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

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 or in your address bar!

Thursday, March 15, 2012

Gel button with mini_magick

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

require 'mini_magick'

image ="")
width = image[:width]
height = image[:height]
image.write 'spread4.png'

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

image_composed.write 'gel_spread4.png'

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

And, this is the converted one.

Monday, March 12, 2012

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.

Friday, March 9, 2012

Update summaries of PostgreSQL Conference 2012

I update summaries of PostgreSQL Conference 2012.

phosphorescence: PostgreSQL Conference 2012

Tuesday, March 6, 2012

Saturday, March 3, 2012

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).