Re: [Groff] need help with composite glyphs

[Deri James]

On Monday 29 Jul 2013 09:27:05 Heinz-Jürgen Oertel wrote:
> Am Sonntag 28 Juli 2013, 22:24:03 schrieb Werner LEMBERG:
> > > If I code the text with \[u u030A] I expect it to be in the PDF.
> > 
> > This glyph is only contained in the URW fonts.  For example, try this
> > 
> > with the PDF backend:
> >   .fam U-T
> >   uring: \[u u030A]
> >   
> >     Werner
> 
> Thanks Werner
> I now use -Tpdf and "Latin small letter u with ring above"
> and most others work.
> I still have sometimes problems with the special glyphs.
> It seems that it depends on the order they are called.
> At the moment I'm not able to reproduce it clearly with a small example.
> Attached is a part of the generated PDF (as png, it is smaller)
> and the generated HTML.
> 
> The word is written as groff test "\[vs]\[n ah]\[u016F]ra"
> 
> As said it does work mostly, but not always.
> And it happens, whether i use \[u u030A] or \[u016F].
> 
> 
> best regards
>     Heinz

The problem you are seeing may well be a bug with the new pdf driver, 
particularly as 
you only see it in certain circumstances, if you can send me an example of the 
troff 
source which exhibits the problem, I will be able to debug if it is a problem 
with the 
driver.

One workaround, if it is indeed a bug in gropdf, is to copy all the U- fonts 
from devpdf 
to devps and copy the relevent lines from devpdf/download to the devps/download 
file. 
This will mean you can process the input with the traditional grops | ps2pdf 
method (to 
see if the issue goes away!).

Cheers 

Deri