[luatex] fio library byte order

[Reinhard Kotucha]

Hi,
it's nice that with the fio library LuaTeX can now process binary
files.  What I'm missing is the ability to specify the byte order
(little vs. big endian).

I didn't find any hint, neither in the manual nor in the sources.

Without being able to specify the byte order usage of the library is
quite limited.  The byte order of a particular file is not necessarily
the same as that of your system.

Some file formats have a certain byte order (PNM, for instance) and
others precede binary data with a byte order mark (TIFF).  In any case
it's necessary to specify the byte order before reading binary stuff.

Is there a chance to provide a switch?

Regards,
  Reinhard

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Reinhard Kotucha                            Phone: +49-511-3373112
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