Hi Joe,

On Tue, Sep 10, 2019 at 03:21:26AM -0700, Joe Perches wrote:
> > @@ -5988,14 +5988,17 @@ sub process {
> >                     for (my $count = $linenr; $count <= $lc; $count++) {
> >                             my $specifier;
> >                             my $extension;
> > +                           my $qualifier;
> >                             my $bad_specifier = "";
> >                             my $fmt = get_quoted_string($lines[$count - 1], 
> > raw_line($count, 0));
> >                             $fmt =~ s/%%//g;
> >  
> > -                           while ($fmt =~ /(\%[\*\d\.]*p(\w))/g) {
> > +                           while ($fmt =~ /(\%[\*\d\.]*p(\w)(\w?))/g) {
> 
> This is not generic enough to allow all possible qualifiers
> to be captured.
> 
> This should be something like:
> 
>                       while ($fmt =~ /(\%[\*\d\.]*p(\w)(\w*))/g) {
>       
> >                                     $specifier = $1;
> >                                     $extension = $2;
> > -                                   if ($extension !~ 
> > /[SsBKRraEhMmIiUDdgVCbGNOxt]/) {
> > +                                   $qualifier = $3;
> > +                                   if ($extension !~ 
> > /[SsBKRraEhMmIiUDdgVCbGNOxtf]/ ||
> > +                                       ($extension eq "f" && $qualifier ne 
> > "w")) {
> 
> 
> And this should likely test
>                                           (defined $qualifier &&
>                                            $extension eq 'f' && $qualifier =~ 
> /^w/))
> 
> >                                             $bad_specifier = $specifier;
> >                                             last;
> >                                     }
> 
> And here the 'f' isn't really a bad $specifier,
> it does not have the correct 'w' $extension.
> 
> The valid extensions may change in the future and
> this code isn't particularly manageable, so I
> think the $specifier/$extension pair should likely
> have some additional testing after validating
> the $specifier.

There are certainly possibilities of having qualifiers that aren't
supported but extensions are also allowed to be followed by any other
characters, so this is a bit grey area.

I'll make the qualifier one or more letters for v7 as you suggested.

-- 
Regards,

Sakari Ailus
sakari.ai...@linux.intel.com

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