mame/plugins/data/data_command.lua

local dat = {}

local info, ver
local datread = require('data/load_dat')
do
	local buttonchar
	local function convert(str)
		if not buttonchar then
			buttonchar = require("data/button_char")
		end
		return buttonchar(str)
	end
	datread, ver = datread.open('command.dat', '#[^V]*Ver[^.:]*[.:]', convert)
end

function dat.check(set, softlist)
	if softlist or not datread then
		return nil
	end
	local status
	status, info = pcall(datread, 'cmd', 'info', set)
	if not status or not info then
		return nil
	end
	return _p('plugin-data', 'Command')
end

function dat.get()
	return info
end

function dat.ver()
	return ver
end

return dat