あっとん atton

Freelance Engineer

atton / okrb2.rb

Last active December 17, 2015 05:59

flush するスタイルに変更

	#!/usr/bin/env ruby

	# Okinawarb.new.H.e.l.l.o.comma.space.w.o.r.l.d!.flush("\n")
	# => output 'Hello, wrold!'

	class String
	CharTable = {comma:',', space:' '}
	def flush str
	print self, str
	end

atton / lisp.rb

Last active December 15, 2015 17:59 — forked from tompng/lisp2.rb

	require './lisp_base.rb'
	LISP do (cons 1,2) end
	LISP do (cond true,(cond false,(cons 1,2),(cons 3,4)),(cons 5,6)) end
	LISP do (defun :fact,:x,(cond (eq :x,0),1,(mult (sqrt (square :x)),(fact (minus :x,1))))) end
	LISP do (defun :abs,:x,(cond (lt :x,0),(minus 0,:x),:x)) end
	LISP do
	(defun :sqrtrec,:x,:y,:d,
	(cond (lt :d,0.0000000001),
	:y,
	(cond (lt (mult :y,:y),:x),

atton / hoge.rb

Created March 28, 2013 10:53

prime division から再構成

299999.prime_division.map{|a,b| a**b}.inject(:*)

atton / hoge.rb

Created March 28, 2013 10:38

ryudai.rb 005 謎の素数

(0..Float::INFINITY).lazy.select{|a| (a % 2 != 0) && (a % 3 != 0)}.take(1000).to_a.last

atton / aoj_0008.rb

Last active December 15, 2015 05:49

AOJ 0008

	# after 1.9.2
	while n = gets.chomp
	puts (0..9).to_a.repeated_permutation(4).to_a.map{\|a\| a.inject(:+)}.select{\|b\| b == n.to_i}.size
	end

atton / match.rb

Created February 21, 2013 12:53

2013/02/20 な Okinawa.rb の正規表現でキャプチャしたのを変数に入れたりマッチオブジェクトにしたりなアレ

	# vim:set fileencoding=utf-8:

	string = "http://www.example.com/hoge/fuga"

	/(?<protocol>[a-z]+):\/\/(?<server>[^\/])\/(?<path>.)/ =~ string
	p [protocol, server, path] # => ["http", "www.example.com", "hoge/fuga"]

	m = /(?<protocol>[a-z]+):\/\/(?<server>[^\/])\/(?<path>.)/.match(string)
	p m
	#=> #<MatchData "http://www.example.com/hoge/fuga" protocol:"http" server:"www.example.com" path:"hoge/fuga">

atton / convert.rb

Last active December 12, 2015 02:38

VLSIなアレ

	# vim:set fileencoding=utf-8:
	Point = 5 # 固定小数点の位置

	def convert_2_to_10 bit_array
	# 2進数複素数列から10進数複素数へ変換。
	# bit_array は [String] を想定。Stringはsize1。

	real_sign, real = convert_sign_2(bit_array[0..15])
	imaginary_sign, imaginary = convert_sign_2(bit_array[16..32])

atton / .classpath

Created December 31, 2012 09:35

.classpath added jar in jdk

	<?xml version="1.0" encoding="UTF-8"?>
	<classpath>
	<classpathentry kind="src" path="src"/>
	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
	<classpathentry kind="lib" path="/Library/Java/JavaVirtualMachines/jdk1.7.0_10.jdk/Contents/Home/jre/lib/jfxrt.jar"/>
	<classpathentry kind="output" path="bin"/>
	</classpath>

atton / gist:4275788

Created December 13, 2012 11:09

custom cd in zsh

atton / .gitattributes

Created November 26, 2012 13:15

.gitattributes example

.gitignore export-ignore