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-- ┌───────────────────────┐
-- │ ▐ ▐ ▗ │
-- │▞▀▘▞▀▖▜▀ ▜▀ ▄ ▛▀▖▞▀▌▞▀▘│
-- │▝▀▖▛▀ ▐ ▖▐ ▖▐ ▌ ▌▚▄▌▝▀▖│
-- │▀▀ ▝▀▘ ▀ ▀ ▀▘▘ ▘▗▄▘▀▀ │
-- └───────────────────────┘
local o = vim.o -- gl[o]bal options
local wo = vim.wo -- [w]indow-local [o]ptions
local bo = vim.bo -- [b]uffer-local [o]ptions
local opt = vim.opt -- convenient :set
-- look & feel
o.termguicolors = true
-- interact with system clipboard
opt.clipboard:append('unnamedplus')
-- copy indent on a new line
o.autoindent = true
-- :h tabstop, 2. point
-- use appropriate number of spaces to insert a <Tab>
o.expandtab = true
o.shiftwidth = 4
o.softtabstop = 4
o.tabstop = 8
-- use english for spellchecking, but don't spellcheck by default
wo.spell = true
bo.spelllang = "en_gb"
wo.spell = false
-- tab completion, zsh style
o.wildmode = "longest:full,full"
opt.wildignore = {
'*.o', '*.obj', '*.class', '*.aux', '*.lof', '*.log', '*.lot', '*.fls',
'*.toc', '*.fmt', '*.fot', '*.cb', '*.cb2', '.*.lb', '.dvi', '*.xdv',
'*.bbl', '*.bcf', '*.blg', '*-blx.aux', '*-blx.bib', '*.run.xml',
'*.fdb_latexmk', '*.synctex', '*.synctex(busy)', '*.synctex.gz',
'*.synctex.gz(busy)', '*.pdfsync'
}
-- put one space while joining (not two)
o.joinspaces = false
-- keep n lines above/below cursor while scrolling
o.scrolloff = 4
-- line numbers
o.number = true
-- fold manually, when I place markers
o.foldmethod = "marker"
-- set the terminal title
o.title = true
-- wrap using 'breakat' character
o.linebreak = true
-- new split panes will split to below and right
o.splitbelow = true
o.splitright = true
-- highlight the current line, yoc undoes
o.cursorline = true
-- current line actual number, rest are relative
o.relativenumber = true
-- we are already using a cursorline, don't clobber linter messages
o.showmode = false
-- jump to the matching bracket briefly
o.showmatch = true
-- persistent undo
o.undofile = true
-- lower case searches ignore case, upper case searches do not
o.ignorecase = true
o.smartcase = true
-- https://stackoverflow.com/a/3445040/
-- switch case labels
o.cinoptions = "l1"
if vim.fn.executable("rg") then
o.grepprg = "rg --vimgrep --no-heading --smart-case"
o.grepformat = "%f:%l:%c:%m,%f:%l:%m"
end
-- iwhite: ignore changes in amount of white space.
-- vertical: start diff mode with vertical splits
-- filler: show filler lines,
opt.diffopt = {
"iwhite", "vertical", "filler", "algorithm:patience", "indent-heuristic"
}
-- menu: use a popup menu to show the possible completions
-- preview: show extra information
opt.completeopt = {"menu", "menuone", "noselect"}
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