[redland-dev] Bug in raptor_vsnprintf()

[Lauri Aalto]

Hi John,

generally, Windows support is not too actively maintained so it may
contain various bugs and quirks. Patches are welcome.

As a workaround, you can open the FILE* yourself and use one of the
parse_file_handle functions to process it.

Lauri


On Wed, May 23, 2012 at 6:28 PM, John Emmas <johne53 at tiscali.co.uk> wrote:
> On 23 May 2012, at 10:46, Lauri Aalto wrote:
>
>>
>> thanks for the report. The best place for bug reports is
>> <http://bugs.librdf.org>.
>>
>> I fixed this particular issue in commit
>> <https://github.com/dajobe/raptor/commit/391e09a5acddaf3ed63005bec880804896ca860e>.
>>
>
> Thanks Lauri.  I'll update from GIT later today and in future, I'll report bugs to the right place.
>
> I've found something else which might be a bug (well, an oversight really) but before I report it, let me describe it here in case I'm misunderstanding something.
>
> I'm working on a cross-platform app which uses lrdf to open and parse some files.  'lrdf_read_file()' eventually defers to 'raptor_parser_parse_file()' to open the actual disk file.  'raptor_parser_parse_file()' accepts a URI to identify the file to be opened.  According to this document by Tim Berners-Lee:-
>
> http://tools.ietf.org/html/rfc3986
>
> the specification states that before conversion to URI, a character string must first get converted to UTF-8 (see the final paragraph of Section 2 - just before Section 3).
>
> 'raptor_parser_parse_file()' calls 'raptor_uri_uri_string_to_filename()' to produce a string that identifies the local file.  However, after decoding, that string will be in UTF-8 format.  UTF-8 format seems to work for Linux and OS-X but on Windows, you cannot pass a UTF-8 string to 'open()'.  So 'raptor_uri_uri_string_to_filename()' only works reliably in an English language locale.  It will fail if there are non-English characters in the file path.  On Windows an extra layer of decoding is needed to convert the UTF-8 file path into a valid Windows file path (Windows has functions to achieve this, I think).
>
> I could probably write a patch and submit it but before I do that, is there already some recommended way for dealing with this (i.e. have I simply missed something?)
>
> John
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