read( _sReplaceChar, _tHistory ) What is _tHistory?

In read() function there is tHistory.

But I dont understand what it does.

So I have read("*", SOMETHING)
What is that something?

This was answered.
Answer: It provides a history table of commands.
So I could press up and get that last word I put in

libraryaddict, on 08 April 2012 - 12:20 AM said:

This was answered.
Answer: It provides a history table of commands.
So I could press up and get that last word I put in

Sry If that sounds noobish but how do I call that history? I didn't even know that this function exists ;D

tHistory is an optional parameter, it's the input history to use. So when you press the up/down arrows it shows you the previous input.
When you type commands in the CraftOS shell, it saves them and you can press up to see the last command you used. That's the tHistory parameter in action :P/>/>
It has to be a table containing the text, something like this:

local tHistory = {
"Line1",
"Line2",
"copy disk/startup startup",
"etc."
}
local input = read(nil, tHistory)

OK So I could do something like this:

local History = {}
if History[0] == nil then
text = read()
table.insert(History, text)
else
text = read("", History)
end

Yes, but it's not necesary to check if it's empty, it will work if it is. So you can do it like:

local history = {}
while true do
  local text = read(nil, history) -- nil for the replacement character, so it doesn't replace the text
  table.insert(history, text)
  do_something(text)
end

Wich is much like the shell loop works (with a little bit more of code to run programs :P/>/>)

Nice thanks for your help! +1 For you