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--- Module of magic functions for nvim
-- @module nvim
-- Equivalent to `echo vim.inspect(...)`
local function nvim_print(...)
if select("#", ...) == 1 then
vim.api.nvim_out_write(vim.inspect((...)))
else
vim.api.nvim_out_write(vim.inspect { ... })
end
vim.api.nvim_out_write "\n"
end
--- Equivalent to `echo` EX command
local function nvim_echo(...)
for i = 1, select("#", ...) do
local part = select(i, ...)
vim.api.nvim_out_write(tostring(part))
-- vim.api.nvim_out_write("\n")
vim.api.nvim_out_write " "
end
vim.api.nvim_out_write "\n"
end
local window_options = {
arab = true,
arabic = true,
breakindent = true,
breakindentopt = true,
bri = true,
briopt = true,
cc = true,
cocu = true,
cole = true,
colorcolumn = true,
concealcursor = true,
conceallevel = true,
crb = true,
cuc = true,
cul = true,
cursorbind = true,
cursorcolumn = true,
cursorline = true,
diff = true,
fcs = true,
fdc = true,
fde = true,
fdi = true,
fdl = true,
fdm = true,
fdn = true,
fdt = true,
fen = true,
fillchars = true,
fml = true,
fmr = true,
foldcolumn = true,
foldenable = true,
foldexpr = true,
foldignore = true,
foldlevel = true,
foldmarker = true,
foldmethod = true,
foldminlines = true,
foldnestmax = true,
foldtext = true,
lbr = true,
lcs = true,
linebreak = true,
list = true,
listchars = true,
nu = true,
number = true,
numberwidth = true,
nuw = true,
previewwindow = true,
pvw = true,
relativenumber = true,
rightleft = true,
rightleftcmd = true,
rl = true,
rlc = true,
rnu = true,
scb = true,
scl = true,
scr = true,
scroll = true,
scrollbind = true,
signcolumn = true,
spell = true,
statusline = true,
stl = true,
wfh = true,
wfw = true,
winbl = true,
winblend = true,
winfixheight = true,
winfixwidth = true,
winhighlight = true,
winhl = true,
wrap = true,
}
-- `nvim.$method(...)` redirects to `nvim.api.nvim_$method(...)`
-- `nvim.fn.$method(...)` redirects to `vim.api.nvim_call_function($method, {...})`
-- TODO `nvim.ex.$command(...)` is approximately `:$command {...}.join(" ")`
-- `nvim.print(...)` is approximately `echo vim.inspect(...)`
-- `nvim.echo(...)` is approximately `echo table.concat({...}, '\n')`
-- Both methods cache the inital lookup in the metatable, but there is a small overhead regardless.
return setmetatable({
print = nvim_print,
echo = nvim_echo,
fn = setmetatable({}, {
__index = function(self, k)
local mt = getmetatable(self)
local x = mt[k]
if x ~= nil then
return x
end
local f = function(...)
return vim.api.nvim_call_function(k, { ... })
end
mt[k] = f
return f
end,
}),
buf = setmetatable({}, {
__index = function(self, k)
local mt = getmetatable(self)
local x = mt[k]
if x ~= nil then
return x
end
local f
if k == "line" then
f = function()
local pos = vim.api.nvim_win_get_cursor(0)
return vim.api.nvim_buf_get_lines(0, pos[1] - 1, pos[1], "line")[1]
end
elseif k == "nr" then
f = vim.api.nvim_get_current_buf
end
mt[k] = f
return f
end,
}),
ex = setmetatable({}, {
__index = function(self, k)
local mt = getmetatable(self)
local x = mt[k]
if x ~= nil then
return x
end
local command = k:gsub("_$", "!")
local f = function(...)
return vim.api.nvim_command(table.concat(vim.tbl_flatten { command, ... }, " "))
end
mt[k] = f
return f
end,
}),
g = setmetatable({}, {
__index = function(_, k)
return vim.api.nvim_get_var(k)
end,
__newindex = function(_, k, v)
if v == nil then
return vim.api.nvim_del_var(k)
else
return vim.api.nvim_set_var(k, v)
end
end,
}),
v = setmetatable({}, {
__index = function(_, k)
return vim.api.nvim_get_vvar(k)
end,
__newindex = function(_, k, v)
return vim.api.nvim_set_vvar(k, v)
end,
}),
b = setmetatable({}, {
__index = function(_, k)
return vim.api.nvim_buf_get_var(0, k)
end,
__newindex = function(_, k, v)
if v == nil then
return vim.api.nvim_buf_del_var(0, k)
else
return vim.api.nvim_buf_set_var(0, k, v)
end
end,
}),
w = setmetatable({}, {
__index = function(_, k)
return vim.api.nvim_win_get_var(0, k)
end,
__newindex = function(_, k, v)
if v == nil then
return vim.api.nvim_win_del_var(0, k)
else
return vim.api.nvim_win_set_var(0, k, v)
end
end,
}),
o = setmetatable({}, {
__index = function(_, k)
return vim.api.nvim_get_option(k)
end,
__newindex = function(_, k, v)
return vim.api.nvim_set_option(k, v)
end,
}),
-- TODO add warning if you try to use a window option here?
bo = setmetatable({}, {
__index = function(_, k)
return vim.api.nvim_buf_get_option(0, k)
end,
__newindex = function(_, k, v)
return vim.api.nvim_buf_set_option(0, k, v)
end,
}),
wo = setmetatable({}, {
__index = function(_, k)
return vim.api.nvim_win_get_option(0, k)
end,
__newindex = function(_, k, v)
-- passing v == nil will clear the value, just like above.
return vim.api.nvim_win_set_option(0, k, v)
end,
}),
env = setmetatable({}, {
__index = function(_, k)
return vim.api.nvim_call_function("getenv", { k })
end,
__newindex = function(_, k, v)
return vim.api.nvim_call_function("setenv", { k, v })
end,
}),
}, {
__index = function(self, k)
local mt = getmetatable(self)
local x = mt[k]
if x ~= nil then
return x
end
local f = vim.api["nvim_" .. k]
mt[k] = f
return f
end,
})
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