What is an equivalent for "io:read()" in Roblox?

Quick one. I'm wondering what an equivalent for io:read() in Roblox is, for multi-line strings not files like in regular Lua.

Script:

function Read_PPM(Text)
	local data = Text:read("*line")
	if data ~= "P6" then 
		return nil 
	end
 
    repeat
        data = Text:read("*line")
    until string.find(data, "#") == nil
 
    local image = {}
    local size_x, size_y
 
    size_x = string.match(data, "%d+")
    size_y = string.match(data, "%s%d+")
 
    data = Text:read("*line")
    if tonumber(data) ~= 255 then return nil end
 
    for i = 1, size_x do
        image[i] = {}
    end
 
    for j = 1, size_y do
        for i = 1, size_x do
            image[i][j] = {string.byte(Text:read(1)), string.byte(Text:read(1)), string.byte(Text:read(1))}
        end
    end
 
    return image
end

you very very often don't need to read files in roblox, which makes the IO library literally useless, and that's why its disabled..

you can use regex(regular experessions, AKA, pattern matching) to mimic the io:read(num) or io:lines(), etc..

in other words, if your seeking to deepen your knowledge in the sense of becoming a better roblox scripter, then you can ignore the IO library completely..

besides reading the output stream, there's no other application for IO, you can read the output stream via LogService.MessageOut, and write to it via print()..

here are examples:

local str = [[
My name is Builderman,
I am a 65 years old man,
I live in great britain,
I am from Iraq.

I have 2 sons, 3 daughters, and 4 grandchildrens
]]

--reads each line of the text, an prints it prefixed with "this ->"
for match in str:gmatch("(.-)\n") do
    print("This ->", match)
end

print("All = ", str:match("(.+)")) --equivalent of `IO:read("a")`

print(str:match("(.+)") == str)--this should be true