[Nexus-developers] Unicode in NeXus

[Akeroyd, FA (Freddie)]

HDF5 will support Unicode for both object names and object data as of
the next release

http://www.hdfgroup.uiuc.edu/HDF5/doc_1.8pre/WhatsNew180.html

Freddie

-----Original Message-----
From: nexus-developers-bounces at nexusformat.org
[mailto:nexus-developers-bounces at nexusformat.org] On Behalf Of Mark
Koennecke
Sent: 12 March 2007 10:03
To: Peterson, Peter F.; nexus-developers at nexusformat.org
Subject: Re: [Nexus-developers] Unicode in NeXus

Peter,

Peterson, Peter F. schrieb:
> What is the state of unicode characters in a NeXus files?
>
> We are starting to have people ask if they can get Unicode into files
> and I want to be able to give an informed answer. I think the answer
is
> "not now", but would people ever want to have it? Do HDF4/HDF5 limit
> this (xml itself is fine, but not all parsers are Unicode compliant).
>
>   

Peter, The mXML dumcumentation says it is unicode capapable. But neither

HDF-4 or HDF-5
provide for Unicode. At least it is not listed as a supported data type.

Then there is the question:
which Unicode? I know of at least two representations. One uses 16 bit 
characters throughout 
and could go into a NX_INT16 type.  The other is mostly 8 bit character,

but there are special
escapes ro allow for 16 bit characters. This, IMHO, can go into a normal

string type.

                    Best Regards,

                               Mark

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