Re: Bug: Literal strings in long format are not quite literal.

[Egor Skriptunoff <egor.skriptunoff@...>]

On 11/2/12, Paul K <paulclinger@yahoo.com> wrote:
> This should work, but careful with newlines and EOF codes, as those
> may break your content. I used something like this in Serpent
> serializer:
> ("%q"):format(s):gsub("\010","n"):gsub("\026","\\026")

%q translates all control characters except '\n' into slashed form.
EOF char (ASCII 0x1A) will never appear in %q-formatted output.
0x0A encodes to backslash + LF, but even after newline
character modified it correctly decodes back to 0x0A,
as any combination backslash + LF/CRLF/CR/LFCR decodes into 0x0A.
IMHO, generated Lua code is safe even without these gsub-s.
And of course, png files should be treated as binary ("rb", "wb" modes)
to ignore magic of EOF chars.

Please show an example - how pure %q output may "break a content"?