* Ari Jolma (ari.jo...@gmail.com) [100915 10:49]: > On 09/15/2010 06:22 AM, Frank Warmerdam wrote: > >A client has asked me to support unicode filenames on windows. To > >that end > >I have constructed an RFC for migration to treating all filesnames in the > >GDAL API as utf-8. > > > > http://trac.osgeo.org/gdal/wiki/rfc30_utf8_filenames > > > >I'd appreciate review and comment. If all is well I hope to call > >for a vote on this RFC late this week. > > My observation is that I can open data sources with non-ascii > filenames in Linux but not in Windows using the Perl bindings. > There's a bug in the Perl bindings to tell Perl that those same > filenames when read back from GDAL are (I guess) utf-8.
In UNIX/Linux, the charset used for filenames can differ per filesystem. This means, in practice, that the charset is undefined; sometimes you can find the charset for a filesys in /etc/fstab, sometimes only in the filesys documentation. There is no systemcall which can tell you that. It would be a nice addition to statfs(). What if you move a file between filesystems with different encodings? > Does Windows use utf-8 for filenames? If so, then fixing the back to > utf-8 bug, would also work for windows, I guess. WINDOWS uses UTF16 with a subset of Unicode (all chars are two bytes). See http://en.wikipedia.org/wiki/NTFS Perl treats filenames as sequence of bytes, where a [/\:] have a special meaning. You cannot convert filenames safely into utf8, because they may already be in utf8 (or something else than latin1) -- CU, MarkOv _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
