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@kencoba
kencoba / trans.rb
Created Oct 16, 2020
Transaction simulator with Ruby
View trans.rb
class Request
end
class Read < Request
attr_reader :var
def initialize(var)
@var = var
end
@kencoba
kencoba / trans.py
Created Oct 16, 2020
Transaction simulator with Python.
View trans.py
class Request:
pass
class Read(Request):
def __init__(self, var):
self.var = var
class Write(Request):
@kencoba
kencoba / main.rs
Created Sep 29, 2020
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)
View main.rs
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
kencoba / main.rs
Created Sep 29, 2020
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)
View main.rs
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
kencoba / download_activity.rb
Created Aug 31, 2020
Download Moodle activity data.
View download_activity.rb
#!/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
kencoba / svnadmin.rb
Created Aug 30, 2020
(Experimental) adding user to Subversion.
View svnadmin.rb
# 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
kencoba / Arithmetic.scala
Created Aug 17, 2020
Sample code of "Creating DSL With Antlr4 and Scala" for Scala2.13
View Arithmetic.scala
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
kencoba / Vagrantfile
Created Aug 12, 2020
Vagrantfile for Haskell.
View Vagrantfile
# -*- 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
kencoba / Vagrantfile
Created Aug 6, 2020
Vagrantfile for Jenkins.
View Vagrantfile
# -*- 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
kencoba / Vagrantfile
Created Aug 5, 2020
Vagrantfile for Docker.
View Vagrantfile
# -*- 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"