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local function format(callback)
local view = vim.fn.winsaveview()
local buf_str = ""
for _, v in ipairs(vim.api.nvim_buf_get_lines(0, 0, -1, false)) do
buf_str = buf_str .. v .. "\n"
end
local tempname = vim.fn.tempname()
local tempfile = assert(io.open(tempname, "w"), "Could not open temporary file")
tempfile:write(buf_str)
tempfile:close()
local r_check = vim.system({
"mdformat",
"--number",
"--extensions",
"tables",
"--extensions",
"frontmatter",
"--wrap",
tostring(vim.bo.textwidth),
"--check",
tempname,
}):wait()
if r_check.code == 0 then
return
elseif r_check.code ~= 1 then
vim.notify("mdformat failed (" .. r_check.code .. "):\n" .. r_check.stderr)
end
local r_format = vim.system({
"mdformat",
"--number",
"--extensions",
"tables",
"--extensions",
"frontmatter",
"--wrap",
tostring(vim.bo.textwidth),
tempname,
}):wait()
if r_format.code ~= 0 then
vim.notify("mdformat failed (" .. r_format.code .. "):\n" .. r_format.stderr)
end
local formatted_lines = {}
for line in io.lines(tempname) do
formatted_lines[#formatted_lines + 1] = line
end
vim.api.nvim_buf_set_lines(0, 0, -1, false, formatted_lines)
vim.fn.winrestview(view)
if callback then
callback()
end
end
vim.opt_local.tabstop = 2 -- CommonMark expects two spaces for indentation
vim.opt_local.shiftwidth = 0
vim.opt_local.softtabstop = -1
vim.opt_local.expandtab = true -- Change tabs to spaces
-- Nothing in the gutter, except sign columns if necessary
vim.opt_local.number = false
vim.opt_local.relativenumber = false
vim.opt_local.signcolumn = "auto"
vim.opt_local.foldcolumn = "0"
--
vim.opt_local.textwidth = 120 -- gw wraps at this value
vim.opt_local.colorcolumn = "+1" -- Highlight one column after 'textwidth'
vim.opt_local.foldlevel = 1
-- Replace concealed text with a character from `'listchars'`
-- With `'foldmethod'` set to `expr` and `'foldlevel'` set to 2 fenced code blocks are concealed and completely invisible
-- I guess that's a TODO for later, find a way to use `'conceallevel'` = 2 but with folded fenced code blocks visible
vim.opt_local.conceallevel = 1
vim.opt_local.complete = {
"o", -- 'omnifunc'
".", -- current buffer
}
-- Visible link labels
vim.api.nvim_set_hl(0, "@markup.link.label.markdown_inline", { underline = true, update = true })
vim.b.autoformat = true
vim.b.format_func = format
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