Kota Yoshitsugu yoshitsugu

Introduction

I was recently asked to explain why I felt disappointed by Haskell, as a language. And, well. Crucified for crucified, I might as well criticise Haskell publicly.

First though, I need to make it explicit that I claim no particular skill with the language - I will in fact vehemently (and convincingly!) argue that I'm a terrible Haskell programmer. And what I'm about to explain is not meant as The Truth, but my current understanding, potentially flawed, incomplete, or flat out incorrect. I welcome any attempt at proving me wrong, because when I dislike something that so many clever people worship, it's usually because I missed an important detail.

Another important point is that this is not meant to convey the idea that Haskell is a bad language. I do feel, however, that the vocal, and sometimes aggressive, reverence in which it's held might lead people to have unreasonable expectations. It certainly was my case, and the reason I'm writing this.

Type classes

I love the concept of type class

リアルタイム動画配信コトハジメ

日時:	2016-01-23
作:	@voluntas
バージョン:	0.1.2
url:	https://voluntas.github.io/

WebRTC コトハジメ

更新:	2024-05-20
作者:	@voluntas
バージョン:	2024.1
URL:	https://voluntas.github.io/

捨てられる環境づくり

1年ほど前、作業の自動化をもっと進めるべきと思った。なんども同じ作業をしているのが原因の負担が大きいと感じたため。それから自動化できそうなところを自動化する、というのをぼちぼちやってた。

あるとき、自動化のためには捨てられる環境を意識するのが大切ではないかと考えた。

Markup Cheat sheet for Org-mode

Heading 1

Heading 2: Set a deadline and a schedule

[66%] Heading 3: a list with checkboxes

[X] task 1
[X] task 2
[ ] task 3

	cargo-features = ["edition"]

	[package]
	name = "async-await-with-tokio"
	version = "0.0.0"
	publish = false
	edition = "2018"

	[[bin]]
	name = "async-await"

	{
	"hosting": {
	"public": "public",
	"rewrites": [
	{
	"source": "**",
	"function": "app"
	}
	],
	"redirects": [{

	# --dry-run ... 実際に実行はせず削除コマンドの表示だけ行う
	# --keep n ... 直近N個のみ保持しそれ以外は削除
	# --target regexp ... regexpにマッチするアプリケーションバージョン名のみを対象
	# --v-target regexp ... regexpにマッチしないアプリケーションバージョン名のみを対象
	# 例)
	# productionが含まれるバージョンを直近20件のみ保持
	# $ delete_old_application_versions karada-yosozu --target "production" --keep 20
	#
	# production, staging以外のバージョンを直近20件のみ保持
	# $ delete_old_application_versions karada-yosozu --v-target "staging\|production" --keep 20

	# encoding: utf-8

	require "timeout"

	# Capture the standard output and the standard error of a command.
	# Almost same as Open3.capture3 method except for timeout handling and return value.
	# See Open3.capture3.
	#
	# result = capture3_with_timeout([env,] cmd... [, opts])
	#

	#!/bin/sh
	#
	# stunnel Start/Stop the stunnel daemons
	#
	# description: stunnel is a script that runs stunnel daemons
	# version 1.00
	#
	# chkconfig: 345 40 60
	#
	# processname: stunnel