Re: io.popen(s, 'rb') ?

[GrayFace <sergroj@...>]

 On 03.10.2010 1:15, Jon Mayo wrote:
> On POSIX systems you wouldn't use 'b'. But on Windows
> (http://msdn.microsoft.com/en-us/library/96ayss4b%28VS.80%29.aspx )
> the 'b' is required for a binary mode.
>
> In my opinion Lua programs shouldn't have to care if it is on Windows
> or POSIX, so I'd call this a bug in the io library for not
> interpreting the mode flags. Or alternatively I would express this as,
> you can't use binary data with io.popen in a portable way because you
> can't reliably pass 'b', which Windows needs.
Alternatively, *_fmode* may be set to *_O_BINARY* prior to calling 
fopen/popen and then returned to the previous state. Then single "r" and 
"w" would work the same on Windows and POSIX. Lua behavior shouldn't 
depend on things like _fmode.

--
Best regards,
Sergey Rozhenko                 mailto:sergroj@mail.ru