たびと koko1000ban

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

他の言語をある程度知っている人はこれを読めばD言語の基礎をマスターでき，D言語の氷山の一角くらいは知ることができると思います．対象バージョンはdmd 2.059です．

ASCIIかUTFしか受け付けません．それ以外の文字コードで書くとコンパイルエラーになります．

D言語のmainはCとは違い以下のようなシグネチャです．

	# source: http://github.com/rtomayko/dotfiles/blob/rtomayko/.reerc

	# baseline REE environment settings for server environments
	# http://www.rubyenterpriseedition.com/documentation.html#_garbage_collector_performance_tuning

	## ruby defaults
	# RUBY_HEAP_MIN_SLOTS=10000
	# RUBY_HEAP_SLOTS_INCREMENT=10000
	# RUBY_HEAP_SLOTS_GROWTH_FACTOR=1.8
	# RUBY_GC_MALLOC_LIMIT=8000000

	- http://www.coffeepowered.net/2009/06/13/fine-tuning-your-garbage-collector/
	- http://snaprails.tumblr.com/post/241746095/rubys-gc-configuration

	article’s settings: ("spec spec" took 17-23!sec)
	export RUBY_HEAP_MIN_SLOTS=1250000
	export RUBY_HEAP_SLOTS_INCREMENT=100000
	export RUBY_HEAP_SLOTS_GROWTH_FACTOR=1
	export RUBY_GC_MALLOC_LIMIT=30000000
	export RUBY_HEAP_FREE_MIN=12500

	// Written in the D programming language.

	/**
	* High peformance downloader
	*
	* Implemented according to <a href="http://yusukebe.com/archives/20120229/072808.html">this implementation</a>.
	*
	* Example:
	* -----
	* dmd -L-lcurl -run downloader.d

	#!/usr/bin/env sh

	##
	# This is script with usefull tips taken from:
	# https://github.com/mathiasbynens/dotfiles/blob/master/.osx
	#
	# install it:
	# curl -sL https://raw.github.com/gist/2108403/hack.sh \| sh
	#

	# -- mode: ruby --
	# vi: set ft=ruby :
	# David Lutz's Multi VM Vagrantfile
	# inspired from Mark Barger's https://gist.github.com/2404910

	boxes = [
	{ :name => :web, :role => 'web_dev', :ip => '192.168.33.1', :ssh_port => 2201, :http_fwd => 9980, :cpus =>4, :shares => true },
	{ :name => :data, :role => 'data_dev', :ip => '192.168.33.2', :ssh_port => 2202, :mysql_fwd => 9936, :cpus =>4 },
	{ :name => :railsapp, :role => 'railsapp_dev', :ip => '192.168.33.3', :ssh_port => 2203, :http_fwd => 9990, :cpus =>1}
	]