Lua file:read unexpected behavior

Question

I'm a complete newbie in Lua and i've stumbled upon a problem i don't understand.

So what i'm trying to do is open a file, read the data and save it into a different file with a different name.

Here is the code

local infile = io.open(folder..'/'..f, "r")
local instr = infile:read("*all")
infile:close()

local outfile = io.open(folder..'/'..newName, "w")
outfile:write(instr)
outfile:close()

The result i get is a Source file 288Kb and a Dest file 2Kb

So again, as i'm a newbie in Lua, the fact that the problem is in infile:read is a wild guess for me, but the way i see it, it's either infile:read or outfile:write.

UPD: The content is absolutely arbitrary, which implies special symbols occur.

Thank you in advance,

Regards!

Piglet · Accepted Answer · 2017-07-27 10:23:09Z

1

I've made it work by opening the in- and output file in binary mode by adding flag b in the io.open call., so the code I have now is

        local infile = io.open(folder..'/'..f, "rb")
        local instr = infile:read("*all")
        Log(instr)
        infile:close()

        local outfile = io.open(folder..'/'..newName, "wb")
        outfile:write(instr)
        outfile:close()

edited Jul 27, 2017 at 10:23

Piglet

29.3k3 gold badges31 silver badges51 bronze badges

answered Jul 27, 2017 at 9:54

Aleksandr Kurinnoi

2011 silver badge9 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Lua file:read unexpected behavior

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related