kencoba’s gists

kencoba / main.rs

Created September 29, 2020 01:36

A translation from Ruby to Rust in the book :pp.018-020[「もっとプログラマ脳を鍛える数学パズル」](https://www.shoeisha.co.jp/book/detail/9784798153612)

	fn main() {
	println!("{n}P{r} = {x}", n = 5, r = 2, x = permutation(5, 2));
	println!("{n}C{r} = {x}", n = 5, r = 2, x = combination(5, 2));
	}

	pub fn permutation(n: i64, r: i64) -> i64 {
	let mut result = 1;
	for i in (n - r + 1)..=n {
	result *= i;
	}

kencoba / main.rs

Created September 29, 2020 01:34

A translation from Ruby to Rust in the book :pp.013-017[「もっとプログラマ脳を鍛える数学パズル」](https://www.shoeisha.co.jp/book/detail/9784798153612)

	use std::collections::HashMap;

	struct Checker {
	memo: HashMap<(i64, i64), i64>,
	max_seat_at_one_table: i64,
	}

	impl Checker {
	pub fn check(&mut self, remain: i64, pre: i64) -> i64 {
	match &self.memo.get(&(remain, pre)) {

kencoba / download_activity.rb

Created August 31, 2020 11:05

Download Moodle activity data.

	#!/usr/bin/env ruby
	# usage: ruby download_activity.rb https://www.example.com/ app user passWd\! 12 result.csv
	# caution : if your password includes bash's special character ,put a '\' before that char (ex: '!' is '\!').
	require "tempfile"
	require "uri"


	moodle_site = ARGV[0]
	app_root = ARGV[1]
	username = ARGV[2]

kencoba / svnadmin.rb

Created August 30, 2020 11:16

(Experimental) adding user to Subversion.


	# usage:
	# $ sudo ruby ./svnadmin.rb #{account} #{password}

	account=ARGV[0]
	password=ARGV[1]

	# create user account.
	system "sudo adduser --gecos ',,,' --disabled-login --quiet #{account}"
	puts "result of adduser"

kencoba / Arithmetic.scala

Created August 17, 2020 10:03

Sample code of "Creating DSL With Antlr4 and Scala" for Scala2.13

	import java.io.ByteArrayInputStream

	import org.antlr.v4.runtime.{CharStream, CharStreams, CommonTokenStream}

	/**
	* See original Saumitra's blog.
	* https://saumitra.me/blog/creating-dsl-with-antlr4-and-scala/
	*
	* This code is for Scala 2.13.
	*/

kencoba / Vagrantfile

Created August 12, 2020 08:23

Vagrantfile for Haskell.

	# -- mode: ruby --
	# vi: set ft=ruby :

	Vagrant.configure("2") do \|config\|
	config.vm.box = "ubuntu/bionic64"

	config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"

	config.vm.network "private_network", ip: "192.168.33.10"

kencoba / Vagrantfile

Created August 6, 2020 00:32

Vagrantfile for Jenkins.

	# -- mode: ruby --
	# vi: set ft=ruby :

	Vagrant.configure("2") do \|config\|
	config.vm.box = "ubuntu/bionic64"

	# for Jenkins 8080 -> 8090
	config.vm.network "forwarded_port", guest: 8080, host: 8090, host_ip: "127.0.0.1"

	config.vm.network "private_network", ip: "192.168.33.12"

kencoba / Vagrantfile

Created August 5, 2020 09:44

Vagrantfile for Docker.

	# -- mode: ruby --
	# vi: set ft=ruby :

	Vagrant.configure("2") do \|config\|
	config.vm.box = "ubuntu/bionic64"

	# config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"

	config.vm.network "private_network", ip: "192.168.33.11"

kencoba / データ抽出.vbs

Created May 18, 2020 09:16

Data extraction from from multiple excel books.

	Option Explicit


	' \| \| \| \|cell_name1\|cell_name2\|...
	' \|directory_name\|book_name\|sheet_name\|
	'

	Public Sub データ抽出()
	Dim ブック_オリジナル As Workbook: Set ブック_オリジナル = ThisWorkbook
	Dim シート_オリジナル As Worksheet: Set シート_オリジナル = ブック_オリジナル.Sheets(1)

kencoba / ReadDataFromWorkbookWithPasswd.vba

Created January 13, 2020 04:12

Open workbooks in the "path" with "passwd", and read data.

	Public Sub パスワード付きファイルを開く()
	Dim path As String
	With Application.FileDialog(msoFileDialogFolderPicker)
	If .Show = True Then
	path = .SelectedItems(1)
	End If
	End With

	Dim passwd As String
	passwd = InputBox("読み取りパスワード", "読み取りパスワード", "")

Kenichi Kobayashi kencoba