RE: Unsupported printf positional parameters on Windows [was: Re:Resolution: only print specific error message when present]

[Kevin Pilch-Bisson <ke...@pilch-bisson.net>]

> -----Original Message-----
> From: Greg Hudson [mailto:ghudson@MIT.EDU]
> Sent: Monday, December 08, 2003 7:45 AM
> To: Julian Foad
> Cc: dev@subversion.tigris.org
> Subject: Re: Unsupported printf positional parameters on Windows [was:
> Re:Resolution: only print specific error message when present]
> 
> On Mon, 2003-12-08 at 09:41, Julian Foad wrote:
> > Branko Čibej wrote:
> > >
> > > I'm much more concerned about the nightmare of unsupported printf
> > > positional parameters on Windows...
> >
> > Huh?  Care to state briefly (but less briefly) what you mean by that, so
> I can at least try to avoid the problem when writing portable code?
> 
> I'm not sure which aspect you need an explanation of, so I'll explain
> everything I know.
> 
> Let's say our code had
> 
>   printf(_("String '%s' has %d characters\n"), s, strlen(s));
> 
> An acceptable German translation might be (according to the gnu awk
> manual):
> 
>   "%d Zeichen lang ist die Zeichenkette '%s'\n"
> 
> ... but the arguments are in the wrong order.  (I don't know any German;
> maybe you could make the arguments be in the right order by rewording
> the sentence, but assume that in many cases you can't.)  So, folks added
> support in printf for:
> 
>   "%2$d Zeichen lang ist die Ziechenkette  '%1$s'\n"
> 
> Apparently, Windows doesn't have this support.  But I don't see why that
> matters; we almost exclusively use apr_psprintf.  There doesn't appear
> to be positional argument support in apr_vformatter(), but that's not a
> Windows-specific problem, and we can presumably fix it with enough work.

Windows FormatMessage(...) does support positional parameters.

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/debug/base/
formatmessage.asp

But I agree that this would be a good thing to add to apr_vformatter.


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Re: Unsupported printf positional parameters on Windows [was: Re:Resolution: only print specific error message when present]

[Branko Čibej <br...@xbc.nu>]

Kevin Pilch-Bisson wrote:

>Windows FormatMessage(...) does support positional parameters.
>  
>
Yes, brrrr, I was trying not to think about that horror. Mix "portable"
and "FormatMessage" in the same thought, and watch your brain explode. :-)



-- 
Brane Čibej   <br...@xbc.nu>   http://www.xbc.nu/brane/

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