Re: ftdump can show the CID registry, ordering, and supplement?

[suzuki toshiya]

Thank you very much for positive comment - Indeed, yet I've not considered and 
tested with real CID fonts! I should rework.
Showing a string type value after the numerical value might be strange.

In conventional PostScript CID fonts, ROS is usually identified as a string like Adobe-Japan1-4, where 
"Adobe" is the registry name (stored as a string), "CNS1" is the ordering (stored as a 
string), and "4" is the supplement level (stored as an integer), like:

/CIDSystemInfo 3 dict dup begin
  /Registry (Adobe)  def
  /Ordering (Japan1) def
  /Supplement 1 def
end def

In my experience, I've never seen a font including a hypen in the strings of 
Registry and Ordering, so there might be few serious requirements to show R/O/S 
separately.

Regards,
mpsuzuki

On 2023/04/16 20:30, Alexei Podtelezhnikov wrote:
> > ftdump is not a font debugger,
> > but it would be much more helpful if it can dump the ROS info from
> > OpenType/CFF.
>
> I actually think that FreeType demos are the best font debugging tools out 
> there.
>
> > My preliminary patch is
> > https://gitlab.freedesktop.org/mpsuzuki/ft2demos-mps-wip/-/commit/aa425196385b6639616b18291c7aa3a6d865a760
> >
> > Does such a feature in ftdump make sense? I hope to hear your comments.
>
> This is great but please consider other output options. I am not familiar with 
> ROS. The CID fonts without charmaps might need this instead. Or is this a name? 
> It is a bit strange right after numeric metrics.
>
> Alexei