Player lister

p=peripheral.wrap("top")
file="players"
function fileToTable(file)
if fs.exists(file)~=true then
print("file"..file.." not found")
return(false)
end
fp=fs.open(file,"r")
line={}
i=1
line[i]=fp.readLine()
if line[i]==nil then return(false) end
while line[i]~=nil do
i=i+1
line[i]=fp.readLine()
end
return(line)
end

function addPlayer()
e,player=os.pullEvent("player")
eingetragen=false
if fs.exists(file) then
players=fileToTable(file)
i=1
while players[i]~=nil do
if players[i]==player then
eingetragen=true
end
end
end
if eingetragen==false then
fp=fs.open(file,"a")
fp.writeLine(player)
end
end