znz / before_action.rb

Created September 4, 2019 11:37

最低限の before_action っぽいもの

	class Foo
	def self.before_action(hook, only:)
	actions = Array(only)
	self.prepend Module.new {
	actions.each do \|action\|
	class_eval <<-RUBY, __FILE__, __LINE__+1
	def #{action}
	#{hook}
	super
	end

znz / eval_code.rb

Last active September 19, 2018 12:30

jekyll plugin to eval trusted code

	require 'jekyll'
	require 'open3'

	module Jekyll
	class EvalCode < Jekyll::Generator
	def generate(site)
	@site = site
	site.pages.each { \|page\| eval_code(page) if page.html? }
	site.posts.docs.each { \|page\| eval_code(page) }
	end

znz / gist:3c54b7591dace43a55479e9ebbce12f8

Created August 16, 2018 14:40

BDST 周りの isdst

	% zdump -v Europe/London \| egrep '194[0-5]'
	Europe/London Sun Feb 25 01:59:59 1940 UT = Sun Feb 25 01:59:59 1940 GMT isdst=0 gmtoff=0
	Europe/London Sun Feb 25 02:00:00 1940 UT = Sun Feb 25 03:00:00 1940 BST isdst=1 gmtoff=3600
	Europe/London Sun May 4 00:59:59 1941 UT = Sun May 4 01:59:59 1941 BST isdst=1 gmtoff=3600
	Europe/London Sun May 4 01:00:00 1941 UT = Sun May 4 03:00:00 1941 BDST isdst=1 gmtoff=7200
	Europe/London Sun Aug 10 00:59:59 1941 UT = Sun Aug 10 02:59:59 1941 BDST isdst=1 gmtoff=7200
	Europe/London Sun Aug 10 01:00:00 1941 UT = Sun Aug 10 02:00:00 1941 BST isdst=1 gmtoff=3600
	Europe/London Sun Apr 5 00:59:59 1942 UT = Sun Apr 5 01:59:59 1942 BST isdst=1 gmtoff=3600
	Europe/London Sun Apr 5 01:00:00 1942 UT = Sun Apr 5 03:00:00 1942 BDST isdst=1 gmtoff=7200
	Europe/London Sun Aug 9 00:59:59 1942 UT = Sun Aug 9 02:59:59 1942 BDST isdst=1 gmtoff=7200

znz / RubyPrize.md

Last active January 29, 2020 01:32

Ruby Prize 候補者（敬称略）

2019 候補者, ⭐ 最終候補者, 🏆 受賞者

znz / nkf-proxy.rb

Last active April 6, 2018 12:11

JIS (IRCnet) <-> UTF-8 (IRC client) proxy

	#!/usr/bin/env ruby
	# frozen_string_literal: true

	require 'nkf'
	require 'socket'

	Socket.tcp_server_loop(6668) do \|socket, client_addr\|
	begin
	begin
	ircnet_socket = Socket.tcp('irc.ircnet.ne.jp', 6667)

znz / test.sh

Created August 13, 2017 06:05

git merge と git rebase の挙動の違いの確認

	#!/bin/sh
	set -eux
	mkdir /tmp/x
	cd /tmp/x
	git init
	echo hello > hello.txt
	git add .
	git commit -m "Initial commit"
	git remote add origin /tmp/repo
	mkdir /tmp/repo

znz / r.rb

Created January 23, 2017 15:24

ruby の正規表現の ^$ と \A\z の速度比較

	require 'benchmark'
	Benchmark.bmbm do \|x\|
	n = 1000000
	x.report('^$ 0 ') { n.times { 0.class.to_s =~ /^(Integer\|Fixnum\|FalseClass\|TrueClass\|NilClass)$/ } }
	x.report('\A\z 0 ') { n.times { 0.class.to_s =~ /\A(Integer\|Fixnum\|FalseClass\|TrueClass\|NilClass)\z/ } }
	x.report('^$ nil') { n.times { nil.class.to_s =~ /^(Integer\|Fixnum\|FalseClass\|TrueClass\|NilClass)$/ } }
	x.report('\A\z nil') { n.times { nil.class.to_s =~ /\A(Integer\|Fixnum\|FalseClass\|TrueClass\|NilClass)\z/ } }
	x.report('^$ x ') { n.times { x.class.to_s =~ /^(Integer\|Fixnum\|FalseClass\|TrueClass\|NilClass)$/ } }
	x.report('\A\z x ') { n.times { x.class.to_s =~ /\A(Integer\|Fixnum\|FalseClass\|TrueClass\|NilClass)\z/ } }
	end

znz / katakana.txt

Created August 23, 2016 14:00

UnicodeのKatakanaプロパティでマッチした文字一覧

	% rbenv exec irb -r irb/completion --simple-prompt
	>> RUBY_DESCRIPTION
	=> "ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin14]"
	>> (0x0...0xD800).lazy.map{\|u\|u.chr(Encoding::UTF_8)}.grep(/\p{Katakana}/).each{\|c\|print c}
	ァアィイゥウェエォオカガキギクグケゲコゴサザシジスズセゼソゾタダチヂッツヅテデトドナニヌネノハバパヒビピフブプヘベペホボポマミムメモャヤュユョヨラリルレロヮワヰヱヲンヴヵヶヷヸヹヺヽヾヿㇰㇱㇲㇳㇴㇵㇶㇷㇸㇹㇺㇻㇼㇽㇾㇿ㋐㋑㋒㋓㋔㋕㋖㋗㋘㋙㋚㋛㋜㋝㋞㋟㋠㋡㋢㋣㋤㋥㋦㋧㋨㋩㋪㋫㋬㋭㋮㋯㋰㋱㋲㋳㋴㋵㋶㋷㋸㋹㋺㋻㋼㋽㋾㌀㌁㌂㌃㌄㌅㌆㌇㌈㌉㌊㌋㌌㌍㌎㌏㌐㌑㌒㌓㌔㌕㌖㌗㌘㌙㌚㌛㌜㌝㌞㌟㌠㌡㌢㌣㌤㌥㌦㌧㌨㌩㌪㌫㌬㌭㌮㌯㌰㌱㌲㌳㌴㌵㌶㌷㌸㌹㌺㌻㌼㌽㌾㌿㍀㍁㍂㍃㍄㍅㍆㍇㍈㍉㍊㍋㍌㍍㍎㍏㍐㍑㍒㍓㍔㍕㍖㍗=> nil
	>> (0xE000...0xFFFF).lazy.map{\|u\|u.chr(Encoding::UTF_8)}.grep(/\p{Katakana}/).each{\|c\|print c}
	ｦｧｨｩｪｫｬｭｮｯｱｲｳｴｵｶｷｸｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾅﾆﾇﾈﾉﾊﾋﾌﾍﾎﾏﾐﾑﾒﾓﾔﾕﾖﾗﾘﾙﾚﾛﾜﾝ=> nil
	>> (0x10000...0x10FFFF).lazy.map{\|u\|u.chr(Encoding::UTF_8)}.grep(/\p{Katakana}/).each{\|c\|print c}
	𛀀=> nil
	>>

znz / bootstrap3-input-file.html

Last active April 1, 2019 09:56

bootstrap3 input file test

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title>bootstrap3のinput[file]のテスト</title>
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css">
	</head>
	<body>

znz / abcd.rb

Created August 24, 2014 09:41

llquiz-2014 http://ll.jus.or.jp/2014/

	require 'benchmark'
	Benchmark.bmbm do \|x\|
	n = 1000000
	x.report('^$ 0 ') { n.times { 0.class.to_s =~ /^(Integer\|Fixnum\|FalseClass\|TrueClass\|NilClass)$/ } }
	x.report('\A\z 0 ') { n.times { 0.class.to_s =~ /\A(Integer\|Fixnum\|FalseClass\|TrueClass\|NilClass)\z/ } }
	x.report('^$ nil') { n.times { nil.class.to_s =~ /^(Integer\|Fixnum\|FalseClass\|TrueClass\|NilClass)$/ } }
	x.report('\A\z nil') { n.times { nil.class.to_s =~ /\A(Integer\|Fixnum\|FalseClass\|TrueClass\|NilClass)\z/ } }
	x.report('^$ x ') { n.times { x.class.to_s =~ /^(Integer\|Fixnum\|FalseClass\|TrueClass\|NilClass)$/ } }
	x.report('\A\z x ') { n.times { x.class.to_s =~ /\A(Integer\|Fixnum\|FalseClass\|TrueClass\|NilClass)\z/ } }
	end

Kazuhiro NISHIYAMA znz