[Fontconfig] Select by name + properties (italic/width)?

[mathog]

Sorry if this is obvious, but the fontconfig documentation is a bit 
light on examples.

Given aset {Name, italic_yesno, bold_yesno, weight, size}, how does one 
select the correct font?
One can find a font with a name like "arial" or "arial bold" using 
FcNameParse(), so by converting
italic/bold to text and mixing it in with the name FcNameParse() can do 
it.  But is there another method?
And what about weight and size, do those have to wait until FreeType to 
be employed?

Thanks,

David Mathog
mathog at caltech.edu
Manager, Sequence Analysis Facility, Biology Division, Caltech