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RE: [Devel] CFF fonts assume Type 2 charstrings


From: Tom Kacvinsky
Subject: RE: [Devel] CFF fonts assume Type 2 charstrings
Date: Fri, 9 Aug 2002 13:45:32 -0400

do not forget the subroutine bias number.

flex hints are handled differently.

and so on...

i *may* take a look at the code this weekend and get more details to the list

On 2002/08/09 at 09:57, George Williams <address@hidden> wrote:

> At 09:51 AM 8/9/2002 +0100, you wrote:
> >Now this is very interesting. I suspected that might be the case. This means
> >that the Types 1 and 2 charstring parsers could be merged and put into the
> >common PostScript-font module (psaux?). A call to the parser could select
> >type 1 or 2 by means of a new argument. That would save code and make my
> >life easier.
> This is what PfaEdit does.
> 
> Essentially the parser handles the codes from both type1s and type2s. You 
> need to do a little extra set up (the subroutine table needs to include its 
> base offset (which is 0 for type1s and approximately cnt/2 for type2s).
> 
> The places where I actually check the type1/2 flag are:
>     * numbers starting with 255
>     * Needed a special check for paths containing single points when doing a
>          closepath
>     * Special check in the first *moveto for the width argument.
> 
> 
> 
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