[Lokasenna]

Originally Posted by tompad

 
 reaper.SetProjExtState(0,"ToDoList",1,tostring(GUI.table_list(items)))

Shouldn't that "tostring(GUI.table_list(items))" make a string with table content?

Yes, GUI.table_list will do that. It also adds pretty indenting though, which might cause trouble.

However, the logic is pretty simple:

local settings = {
  flag1 = true,
  flag2 = false,
  param1 = 4,
  param2 = 5,
  param3 = "tompad"
}

local function settingsToStr()
  local strs = {}
  for k, v in pairs(settings) do
    strs[#strs+1] = k .. "=" .. tostring(v)
  end
  return table.concat(strs, ",")
end

Msg(settingsToStr())
--> flag1=true,param2=5,param1=4 ...etc...

-- Note that pairs() doesn't maintain any sort of order in the
-- table, but Lua doesn't either so it doesn't matter.

local function formatValue(v)
  if tonumber(v) then
    return tonumber(v)
  elseif (v == "true" or v == "false") then
    return v == "true"
  else
    return v
  end
end

local function settingsFromStr(str)
  for k, v in str:gmatch("([^,]+)=([^,]+)") do
    settings[k] = formatValue(v)
  end
end

By the way - I watched some other examples with SetProjExtState that used "for k, v in pairs(s) do"
but if I want to save just ONE long string in SetProjExtState do I really need to do a for loop?

If you know it's one long string, then no - you should be able to plop it straight in there. Might need to replace any \ns with a placeholder and then swap them back on reload - I'm not sure.

Originally Posted by tompad

When closing project starting a new project my script window says open

Reaper doesn't send any events for the script to know that you've changed projects. AFAIK your best option would be to make use of the SWS Project Startup action or whatever it's called, but I don't think you'd be able to save into the previous project's ExtState that way.