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|
-- vis-filetype-settings
-- (https://github.com/jocap/vis-filetype-settings)
-- This plugin provides a declarative interface for setting vis
-- options depending on filetype.
--
-- It expects a module attribute called `settings` to be defined:
--
-- ft.settings = {
-- markdown = {"set expandtab on", "set tabwidth 4"}
-- }
--
-- In this variable, filetypes are mapped to sets of settings that are
-- to be executed when a window containing the specified filetype is
-- opened.
--
-- If you want to do more than setting simple options, you can specify a function instead:
--
-- ft.settings = {
-- bash = function(win)
-- -- do things for shell scripts
-- end
-- }
--
-- Be sure not to run commands that open another window with the same
-- filetype, leading to an infinite loop.
local M = {}
--- Dump value of a variable in a formatted string
--
--- @param o table Dumpable object
--- @param tbs string|nil Tabulation string, ' ' by default
--- @param tb number|nil Initial tabulation level, 0 by default
--- @return string
local function dump(o, tbs, tb)
tb = tb or 0
tbs = tbs or " "
if type(o) == "table" then
local s = "{"
if (next(o)) then
s = s .. "\n"
else
return s .. "}"
end
tb = tb + 1
for k, v in pairs(o) do
if type(k) ~= "number" then
k = '"' .. k .. '"'
end
s = s .. tbs:rep(tb) .. "[" .. k .. "] = " .. dump(v, tbs, tb)
s = s .. ",\n"
end
tb = tb - 1
return s .. tbs:rep(tb) .. "}"
else
return tostring(o)
end
end
M.settings = {}
function execute(s, arg, arg2)
if type(s) == "table" then
for key, setting in pairs(s) do
if type(key) == "number" then -- ignore EVENT keys
vis:command(setting)
end
end
elseif type(s) == "function" then
if arg2 then
s(arg, arg2)
else
s(arg)
end
end
end
-- TODO There is something wrong, gh#jocap/vis-filetype-settings!5 mentions
-- settings = {
-- ['.funkytype'] = {
-- "set expandtab on",
-- }
-- }
-- That dot makes me wonder
-- Register events
vis.events.subscribe(vis.events.INPUT, function()
if M.settings[vis.win.syntax] and M.settings[vis.win.syntax].INPUT then
execute(M.settings[vis.win.syntax].INPUT, nil)
end
end)
local file_events = {
"FILE_OPEN",
"FILE_CLOSE",
"FILE_SAVE_POST",
"FILE_SAVE_PRE"
}
for _, event in pairs(file_events) do
vis.events.subscribe(vis.events[event], function(file, path)
for win in vis:windows() do
-- vis:info("FILE win.file " .. win.file.name .. ", syntax " .. win.syntax)
if win.file == file then
if M.settings[win.syntax] and M.settings[win.syntax][event] then
execute(M.settings[win.syntax][event], file, path)
end
end
end
end)
end
local win_events = {
"WIN_CLOSE",
"WIN_HIGHLIGHT",
"WIN_OPEN",
"WIN_STATUS"
}
-- vis.events.subscribe(vis.events.WIN_OPEN, function(win)
-- if settings == nil then return end
-- local window_settings = settings[win.syntax]
--
-- if type(window_settings) == "table" then
-- for _, setting in pairs(window_settings) do
-- vis:command(setting)
for _, event in pairs(win_events) do
vis.events.subscribe(vis.events[event], function(win)
if win.file and (win.syntax ~= nil) then
-- vis:info("WIN win.file " .. win.file.name .. ", syntax " .. win.syntax .. ", settings " .. dump(M.settings[win.syntax]))
-- vis:info("WIN syntax " .. win.syntax .. ", partial set " .. dump(M.settings[win.syntax]))
end
if M.settings[win.syntax] == nil then return end
if M.settings[win.syntax] then
if M.settings[win.syntax][event] then
execute(M.settings[win.syntax][event], win)
elseif event == "WIN_OPEN" then -- default event
execute(M.settings[win.syntax], win)
end
end
end)
end
return M
|
