Re: [Foxgui-users]unique filename

[Jeroen <jv...@cf...>]

On Friday 09 March 2001 10:08, you wrote:
> > On Thursday 08 March 2001 18:39, you wrote:
> > > Hi Jereon,
> > >
> > > > > here is a method which tries to generate a filename which is
> > > > > unique,
> >
> > or
> >
> > > > > returns a blank string if it couldn't.  It leaves the extension (if
> >
> > it
> >
> > > has
> > >
> > > > > one) unaltered.  It is useful for generating a filename for
> >
> > auto-saving
> >
> > > > > situations.
> > > > >
> > > > >
> > > > > FXString FXFile::uniqueFilename(const FXString& file){
> > > > >   if (!exists(file)) return file;
> > > > >   FXString ext = extension(file);
> > > > >   FXString path = directory(file);
> > > > >   path += PATHSEP;
> > > > >   path += title(file);
> > > > >   FXString filename;
> > > > >   register FXint fileCount = 0;
> > > > >   while(fileCount<1000){
> > > > >     filename =
> > >
> > > FXStringFormat("%s%i.%s",path.text(),fileCount,ext.text());
> > >
> > > > >     if(!exists(filename)) break;
> > > > >     fileCount++;
> > > > >     }
> > > > >   if(fileCount<1000) return filename;
> > > > >   else return FXString::null;
> > > > >   }
> > > > >
> > > > >
> > > > >
> > > > > Mathew Robertson
> > > >
> > > > Great! I will incorporate this function in the next release!
> > > >
> > > > I suggest we call it FXFile::unique(), because its shorter
> > > > and all FXFile functions
> > > > work on filenames so the full FXFile::uniqueFilename() would
> > > > be a bit long to type,
> > > > I hope you don't mind.
> > >
> > > nah - though, I just noticed in my code snippet - I origonally tested
> >
> > this
> >
> > > for files with extensions.  I just noticed that I assumed that an
> >
> > extension
> >
> > > existed ie
> > >
> > > > >     filename =
> > >
> > > FXStringFormat("%s%i.%s",path.text(),fileCount,ext.text());
> > >
> > > notice the dot in "%s%i.%s" - I stuffed up   :-o
> >
> > OOPS.  I didn't see that either!
>
> I think you should include a process id in the filename. On unix that is
> the PID, but I don't know what to use on windows.


Use fxgetpid().


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