gnuplot-info

[Gnuplot-info] Japanese/Chinese characters in UNC network path

[theozh <th...@gm...>]

Hi,
I am trying to plot a data file under Windows which is located on a network path containing Japanese or Chinese characters.
A command like the following doesn't seem to work:
XXX stands for some Japanese or Chinese characters.

plot '//server/blabla/XXX/blabla/XXX/datafile.dat' u 1:2

I thought gnuplot does understand UTF8...?
What am I doing wrong? Any ideas, what I could do? Thanks.

Re: [Gnuplot-info] Japanese/Chinese characters in UNC network path

[sfeam <sf...@us...>]

On Tuesday, 24 April 2018 11:37:51 theozh wrote:
> Hi,
> I am trying to plot a data file under Windows which is located on a network path containing Japanese or Chinese characters.
> A command like the following doesn't seem to work:
> XXX stands for some Japanese or Chinese characters.
> 
> plot '//server/blabla/XXX/blabla/XXX/datafile.dat' u 1:2
> 
> I thought gnuplot does understand UTF8...?

unix/linux filesystems store file names without making any attempt
to interpret or enforce a specific character encoding. On a linux
ext4 filesystem it would be possible to have some filenames in 
UTF8 and others in ISO_8859_5 or whatever.  

But that is not true on Windows or OSX.  On those systems the
usual filesystems only accept or permit a certain character
encoding as a legal file name.  In neither case is UTF8 one of the
legal encodings.

So if your file is located physically on a Windows machine
it is highly likely that the file names are not UTF8. 

When built for windows (at least for some build environments)
gnuplot opens files using a special routine win_fopen() that converts
UTF8 names to some other encoding before trying to open it.
I must leave the details to someone more familiar with that code.
Even so I think there is no guarantee that the encoding chosen
by the win_fopen() routine matches the encoding enforced by the
disk that the file lives on. 

> What am I doing wrong? Any ideas, what I could do? Thanks.

Stick with linux file systems?
Although even there I think you would have to work around the
program trying to use win_fopen() rather than a standard
fopen() that just takes the filename as-is.

	Ethan

> 
> ------------------------------------------------------------------------------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> Membership management via: https://lists.sourceforge.net/lists/listinfo/gnuplot-info

Re: [Gnuplot-info] Japanese/Chinese characters in UNC network path

[theozh <th...@gm...>]

Thanks Ethan,

sorry, actually, I didn't mention that the code and path was created by Python and sent via pipe to gnuplot.
So, I guess using an additional line explicitely setting utf8 encoding was probably the "trick".
Standard encoding apparently was cp1252.

set encoding utf8
plot '//server/blabla/XXX/blabla/XXX/datafile.dat' u 1:2