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In windows if you open with "r" it will translate LF to CRLF
Try using "rb" on the open and mac and win should give the same result

sagasw wrote:

Hi guys,

When I try to use lua's file write function, I get this question.
Lua code like following, and it is very simple.

local filename = [[./test1.txt]]
local clean_code_lines = {"aa", "bb", "cc", "dd"}
local f = io.open(filename, "w")
for li = 1, #clean_code_lines do
    f:write(clean_code_lines[li])
    f:write("\r\n")
end
f:close()

And you could notice the open function's parameter is "w", it means I want
to write text file.
When I run this script in windows (I build the lua with VC2008), it will get
result like:

aaCR
CRLF
bbCR
CRLF
ccCR
CRLF
ddCR
CRLF

The CR is "\r", the LF is "\n", and they can't display in mail, so I use
string to replace.
I trace the Lua binary code generating, it seems correct.

And I have a Mac ibook G4, so I test the same script in G4, it could get
result like:

aaCRLF
bbCRLF
ccCRLF
ddCRLF

It is the correct result what I want.

So my question is, why the script get incorrect(?) result in windows?
Is the issue in windows's fwrite function?

Thanks,

Will Sun