Using Vim as Python and R IDE

Using Vim as IDE

Vim is a classic text editor known for efficiency, while NeoVim is its modernized fork with improvements like better plugin support. LunarVim, built on NeoVim, offers a pre-configured setup, making it easier for users to get a powerful, feature-rich environment without the hassle of individual configurations. Ideal for those new to Vim/NeoVim or seeking a ready-to-use development setup, LunarVim combines ease of setup with customizability. It’s particularly appealing for its integrated toolset, active community support, and a balance between functionality and performance, making it a great choice for a streamlined coding experience.

Plug: Nvim-R
Video Tutorial: Rohit Farmer
Instruction following the video: rohitfarmer

Final work:

© Karobben

Installation

Please install the latest NeoVim by following the Neovim document and LunarVim Document

# install neovim
# sudo apt install neovim
# install vim-plug
curl -fLo ~/.local/share/nvim/site/autoload/plug.vim --create-dirs \
    https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim

# for storing the config file
mkdir ~/.config/nvim
touch ~/.config/nvim/init.vim
# for storing plug
# because all plug would be installed by here, you could just delete the directories here to delete plugs.
mkdir ~/.vim/plugged
# open and edit the config file
vim ~/.config/nvim/init.vim

Save the lines below in the ~/.config/nvim/init.vim file to install the pluges.

" Specify a directory for plugins
" - Avoid using standard Vim directory names like 'plugin'
call plug#begin('~/.vim/plugged')

" List of plugins.
" Make sure you use single quotes

" Shorthand notation
Plug 'jalvesaq/Nvim-R', { 'branch' : 'stable' }
Plug 'ncm2/ncm2'
Plug 'roxma/nvim-yarp'
Plug 'gaalcaras/ncm-R'
Plug 'preservim/nerdtree'
Plug 'Raimondi/delimitMate'
Plug 'patstockwell/vim-monokai-tasty'
Plug 'itchyny/lightline.vim'

" Initialize plugin system
call plug#end()

How to instsall the plunges

After stored the change, you need to open it again by using nvim ~/.config/nvim/init.vim. And then, under the command model (which is triggered by :), input PlugInstall (PlugUpdate if you want to update them). After you see the picture below which means you installed it successfully:

By following the instruction from rohitfarmer’s post, we could add more things at the end of the init.vim file:

folding behavior

" Set foldbehavior
set tabstop=2        " Number of spaces that a  in the file counts for

set shiftwidth=2     " Number of spaces to use for each step of (auto)indent

set softtabstop=2    " Number of spaces that a  counts for while performing editing operations

set expandtab        " Use spaces instead of tabs
set foldmethod=indent

set foldlevelstart=2    " Start folding at an indent level greater than 2

For quick unfold all codes:

:set nofoldenable

" Set a Local Leader

" With a map leader it's possible to do extra key combinations
" like w saves the current file
let mapleader = ","
let g:mapleader = ","


" Plugin Related Settings

" NCM2
autocmd BufEnter * call ncm2#enable_for_buffer()    " To enable ncm2 for all buffers.
set completeopt=noinsert,menuone,noselect           " :help Ncm2PopupOpen for more
                                                    " information.

" NERD Tree
map nn :NERDTreeToggle                  " Toggle NERD tree.

" Monokai-tasty
let g:vim_monokai_tasty_italic = 1                  " Allow italics.
colorscheme vim-monokai-tasty                       " Enable monokai theme.

" LightLine.vim 
set laststatus=2              " To tell Vim we want to see the statusline.
let g:lightline = {
   \ 'colorscheme':'monokai_tasty',
   \ }


" General NVIM/VIM Settings

" Mouse Integration
set mouse=i                   " Enable mouse support in insert mode.

" Tabs & Navigation
map nt :tabnew    " To create a new tab.
map to :tabonly     " To close all other tabs (show only the current tab).
map tc :tabclose    " To close the current tab.
map tm :tabmove     " To move the current tab to next position.
map tn :tabn        " To swtich to next tab.
map tp :tabp        " To switch to previous tab.


" Line Numbers & Indentation
set backspace=indent,eol,start  " To make backscape work in all conditions.
set ma                          " To set mark a at current cursor location.
set number                      " To switch the line numbers on.
set expandtab                   " To enter spaces when tab is pressed.
set smarttab                    " To use smart tabs.
set autoindent                  " To copy indentation from current line 
                                " when starting a new line.
set si                          " To switch on smart indentation.


" Search
set ignorecase                  " To ignore case when searching.
set smartcase                   " When searching try to be smart about cases.
set hlsearch                    " To highlight search results.
set incsearch                   " To make search act like search in modern browsers.
set magic                       " For regular expressions turn magic on.


" Brackets
set showmatch                   " To show matching brackets when text indicator 
                                " is over them.
set mat=2                       " How many tenths of a second to blink 
                                " when matching brackets.


" Errors
set noerrorbells                " No annoying sound on errors.


" Color & Fonts
syntax enable                   " Enable syntax highlighting.
set encoding=utf8                " Set utf8 as standard encoding and 
                                 " en_US as the standard language.

" Enable 256 colors palette in Gnome Terminal.
if $COLORTERM == 'gnome-terminal'
    set t_Co=256
endif

try
    colorscheme desert
catch
endtry


" Files & Backup
set nobackup                     " Turn off backup.
set nowb                         " Don't backup before overwriting a file.
set noswapfile                   " Don't create a swap file.
set ffs=unix,dos,mac             " Use Unix as the standard file type.


" Return to last edit position when opening files
au BufReadPost * if line("'\"") > 1 && line("'\"") <= line("$") | exe "normal! g'\"" | endif

Basic Usage of Nvim-R

Ctrl + W + HJKL   " Remove the cursor from window to window
,nt               " Open a new tab
,tn               " Move to the next tab
,tp               " Back to the previous tab

# code fold behavior
zc - Close (fold) the current fold under the cursor.
zo - Open (unfold) the current fold under the cursor.
za - Toggle between closing and opening the fold under the cursor.
zR - Open all folds in the current buffer.
zM - Close all folds in the current buffer.

# Nvim-R
Ctrl + x + o      " Access the help information (auto fill)
\rf               " Connect to R console.
\rq               " Quit R console.
\ro               " Open object bowser.
\d                " Execute current line of code and move to the next line.
\ss               " Execute a block of selected code.
\aa               " Execute the entire script. This is equivalent to source().
\xx               " Toggle comment in an R script.

# NERDTree
,nn               " Toggle NERDTree.

Basic codes for nvim

You could also included them into the vim.init file

# wrap the words in it is too long
:set wrap 
:set nowrap
# set the wrap behavior
:set showbreak=↪\ 

Bugs

After installed the Nvim-R (them master branch), you’ll have the error code below whenever you open nvim. Just ignore it and it would be fine.

Error detected while processing function ROnJobStdout[40]..UpdateSynRhlist[11]..FunHiOtherBf:
line   10:
E117: Unknown function: nvim_set_option_value
Press ENTER or type command to continue

Configure for LuanrVim

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
cat "$HOME/.cargo/env" >> ~/.zshrc
source ~/.zshrc

# install LunarVim
LV_BRANCH='release-1.3/neovim-0.9' bash <(curl -s https://raw.githubusercontent.com/LunarVim/LunarVim/release-1.3/neovim-0.9/utils/installer/install.sh)

rm -rf ~/.config/lvim/
git clone https://github.com/Karobben/kickstart.nvim.git ~/.config/lvim

Nerd font

# curl -fsSL https://raw.githubusercontent.com/ronniedroid/getnf/master/install.sh | bash
mkdir -p ~/.local/share/fonts
cd ~/.local/share/fonts && curl -fLO https://github.com/ryanoasis/nerd-fonts/raw/HEAD/patched-fonts/DroidSansMono/DroidSansMNerdFont-Regular.otf
fc-cache -f -v

Words Editing

For editing the word, we need to switch the model of read, visual, and editing. Press i enable the editing mode. Type Esc or Ctrl + c exist the editing mode and back to the reading mode. v enable selection model so you could select words.

i                   enter editing mode
dd                  cut the selected line into paste board
p                   paste the coppied contents
v                   selecte mode to selecte multiple words and lines
    wd              delete the selected words/lines
    y               copy the selected words/lines
    p               repalce the selected workds/lines with coppied contents
o                   Start a new line
:>                  Intend the selected line 
:>>                 Intend tiwce
:<                  Undo the intend
: m 10              Move the selected words/line into line 10
Alt+ j/k        Move selected words/lines up/donw

Cursor Related

h                   moving left
j                   moving down
k                   moving up
l                   moving right
:10                 moving to line 10
w                   moving to the head of the next word
e                   moving to the end of the word
b                   moving to the head of the previous word
ge                  moving back to the end of the word

gg                  moving to the top of the file
G                   moving to the end of the file
Ctrl + f            page foward (donw)
Ctrl + b            page back (up)

<leader> e          open directory exploer
<leader> w          save the edit file (:w)

# about tab
<leader> bb         back to the tab left
<leader> bn         go to the next tab (right)
:bd                 close the current tab

<Alt> 1/2/3         open a terminal (only when you installed the pluges)
<Ctrl> w            swtich between windows

:set mouse-=a       Disable the mouse selection
:set mouse=a        Inable the mouse