diegopacheco

Tiny Haskell Essay

created: 01.FEB.2024

I love to learn new programing languages, it help to open the mind to new possibilities and compare different approaches. For instance, I learned Ruby and Scala in 2010, Clojure and Haskell in 2011, Go in 2015, Kotlin 2016, Rust in 2018 and Idris, TypeScript in 2019, 2020 Pandemic strike did a bunch of pocs but not with new langs(crazy year), Zig in 2021, 2022(coding in lots of langs but nothing new) - in 2023 I'm learning Nim and V. Learn at least one lang per year. This post is not complain, it's just to share some toughts, notes and impressions.

Why Haskell

• Created in 1990 (30+ years)
• Designed by many people

diegopacheco

 sed -n 's,.*<GetCompensableProductIdentification>\(.*\)</GetCompensableProductIdentification>.*,\1,p' input

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problem:

cgroups: cannot found cgroup mount destination: unknown

fix:

sudo mkdir /sys/fs/cgroup/systemd
sudo mount -t cgroup -o none,name=systemd cgroup /sys/fs/cgroup/systemd

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set nocompatible              " be iMproved, required
filetype off                  " required

"
" Vim spesific editor configs
"
set encoding=utf-8
set number                      " Show line numbers
set backspace=indent,eol,start  " fix backspace
set mouse=a                     " fix mouse to it only scroll inside vim not outside

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Error:

nvm is not compatible with the npm config "prefix" option:

Fix: add this 2 lines in your profile. vim ~/.zshrc

npm config delete prefix
npm config set prefix $NVM_DIR/versions/node/v21.5.0

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Install SpaceVim

curl -sLf https://spacevim.org/install.sh | bash

Install YouCompleteMe

cd $HOME/.vim/plugged
git clone https://github.com/ycm-core/YouCompleteMe.git
sudo apt install build-essential cmake vim-nox python3-dev
python3 install.py --all

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❯ pocs-count.sh
Java       : 605
Scala      : 119
Rust       : 186
Go         : 106
C          : 18
C++        : 55
Kotlin     : 50
Clojure    : 82
Haskell    : 21

diegopacheco

FIX

~/.SpaceVim
git checkout v2.2.0

You can look your vim/nvim compatible version here: https://spacevim.org/
I had issues with spacevim 2.3.0-dev so I had to force v2.2.0
IF you want to know your vim version do:

❯ vim --version

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Install

bash <(curl -fsSL https://raw.githubusercontent.com/liuchengxu/space-vim/master/install.sh)

more one: https://github.com/liuchengxu/space-vim

diegopacheco

unbind r
bind r source-file ~/.tmux.conf

#
# List of plugins
#
set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'tmux-plugins/tmux-yank'
set -g @plugin 'tmux-plugins/tmux-sensible'
set -g @plugin 'dracula/tmux'