10 replies to this topic

[lieudusty]

Hi! I'm trying to get a text field (read()) to have something already there before the user inputs any text. Does anyone know how to do this?

[PixelToast]

modify the sLine variable at the top of the read function

[faubiguy]

You can do

os.queueEvent("char", "Starting text")
input = read()

This has the side effect of the starting cursor in read still being after the first character
EDIT: It doesn't if you put os.queueEvent("key", keys["end"]) between where you queue the message and read()

[Espen]

You could first write something infront of it like so:

write("Enter Password: ")
local input = read()

And for convenience sake you can put it into a function:

local function textRead( text )
  write( text )
  return read()
end

This way you can comfortably use textRead() whenever you want to write something before an input:

local pwd = textRead("Please Enter your Password: ")

[brett122798]

Well, here's what you might do:

prevtext = "What's your name? | Answer: "
write(prevtext)
aftertext = read()
aftertext = (prevtext..aftertext)

I think the last line will work..

[lieudusty]

Well I wanted the text there that you can edit the existing text too.

[faubiguy]

My suggestion will do that. It makes it so that read will pull the starting text queued as a char event and put it there before you start writing.

[lieudusty]

faubiguy, on 20 October 2012 - 04:46 AM, said:

My suggestion will do that. It makes it so that read will pull the starting text queued as a char event and put it there before you start writing.

I tried your solution it works but were right, the cursor starts at the second character

[faubiguy]

Use os.queueEvent("key", keys["end"]) after queueing the message but before calling read()

[Cloudy]

Why don't you just copy read and make your own function? It is open source in bios.lua. Should be trivial to prefill the character buffer.

Edit: as was suggested by pixeltoast.

[Lyqyd]

read() can be passed a history table. Passing a table containing the string and queuing an up-arrow key event may do what you wish. Copying read() and adding this (very simple) feature is certainly the best way to do this, though.