@ajaxray's .vimrc config

Check this reference guide for further details.

General Settings

Setting	Description
set nocompatible	Disables legacy Vi compatibility, unlocks full Vim features.
set ff=unix	Uses Unix-style line endings (LF).
set encoding=utf-8	Sets global text encoding to UTF-8 for multilingual/text handling.
filetype plugin indent on	Enables filetype detection, plugin loading, and smart indentation.
syntax on	Turns on syntax highlighting.

Whitespace & Formatting

Setting	Description
set nowrap	Prevents soft-wrapping of long lines.
set textwidth=79	Auto-wraps text at 79 chars (code/style preference).
set formatoptions=tcqrn1	Controls paragraph formatting and auto-wrapping: e.g. auto-wrap comments, join lines, etc.
set tabstop=4	Sets tab width to 4 spaces.
set shiftwidth=4	Sets indentation for >>, <<, and auto-indent.
set softtabstop=4	Soft tab key works as 4 spaces.
set expandtab	Converts typed tabs to spaces.
set noshiftround	Prevents rounding indentation to multiples of shiftwidth.

Cursor Motion & Navigation

Setting	Description
set scrolloff=3	Leaves 3 lines visible around the cursor while scrolling.
set backspace=indent,eol,start	Makes backspace work over indents, EOLs, and at insert start.
set matchpairs+=<:>	Adds < and > for pair jump navigation with %.
nnoremap B ^	Remaps B to go to start of line.
nnoremap E $	Remaps E to go to end of line.

Rendering & Performance

Setting	Description
set ttyfast	Tells Vim terminal is fast, turning on snappier redraw.
set cursorline	Highlights the current cursor row.

Status Bar & UI

Setting	Description
set number	Shows line numbers.
set ruler	Shows current position (row/col) on status bar.
set laststatus=2	Always displays status line.
set showmode	Displays current editing mode in status bar.
set showcmd	Shows partial typed command in lower right.

Searching & Highlighting

Setting	Description
vnoremap <expr> // 'y/\\V'.escape(@", '\\').'<CR>'	Visually select then press // to search for the exact selection.
set hlsearch	Highlights all instances of the last search.
set incsearch	Matches candidates as you type your search pattern.
set ignorecase	Ignores case in search patterns.
set smartcase	Makes search case-sensitive if you use uppercase letters.
set showmatch	Briefly jumps to matching parenthesis when typing one.
map <leader>c :let @/=''<cr>	<leader>c (,c) clears highlighted search.

Visualizing Whitespace

Setting	Description
set listchars=tab:▸\\ ,eol:¬	Shows tab and EOL characters visually.
map <leader>t :set list!<CR>	Toggles visible whitespace marks.

Code Folding

Setting	Description
set foldenable	Turns on folding.
set foldmethod=indent	Uses indentation to detect folds.
set foldlevelstart=10	Opens most folds by default (nesting up to level 10).
set foldnestmax=10	Maximum allowed fold nesting.
nnoremap <leader>f za	Toggles fold at cursor with <leader>f (,f).

Neovim & Terminal Support

Setting	Description
if !has('nvim') / set ttymouse=xterm2 / endif	Improve mouse support on non-Neovim Vim.
if exists(':tnoremap') / tnoremap <Esc> <C-\><C-n> / endif	In terminal buffers, Esc returns to normal mode in Neovim.

Plugin & Runtime Settings

Setting	Description
let g:NERDTreeNodeDelimiter = "\u00a0"	Sets NERDTree node delimiter for better layout.
set runtimepath^=~/.vim/bundle/ctrlp.vim	Adds ctrlp.vim plugin path.

Mappings & Leader Key

Setting	Description
let mapleader=","	Sets leader key to , for shortcut mappings.