Ruby on Rails 教育関連情報

# Wiki

### CGI用サーバー

~~~

#!/usr/bin/env ruby

require 'webrick'

document_root = './'

rubybin = '~/.rbenv/shims/ruby'

server = WEBrick::HTTPServer.new({

  DocumentRoot: document_root,

  BindAddress: '0.0.0.0',

  CGIInterpreter: rubybin,

  Port: 8080

})

['INT', 'TERM'].each {|signal|

  Signal.trap(signal){ server.shutdown }

}

server.start

~~~

### 階上を計算するCGI

~~~

#!/usr/bin/env ruby

require 'cgi'

def fact(n)

  n == 0 ? 1 : n * fact(n - 1)

end

cgi = CGI.new

n = cgi['n'].to_i

print cgi.header

puts ""

puts ""

puts "#{n} ! = #{fact(n)}"

puts ""

~~~