Thanks for the update, Victor. I absolutely want to have a look at this. So this is really the foundation to make Type 1 fonts available on the fly without generating font metric XML files by hand. Very cool.
It'll be fun to see if I can get some basic ops working to paint some simple shapes to a Graphics2D interface. On 07.10.2004 03:54:33 Victor Mote wrote: > FWIW, the FOray PostScript interpreter is now able to successfully parse any > Type 1 font that I have thrown at it, store the data structures, and > retrieve them. This includes the ability to parse the encrypted portion of > the font, whether in binary or ASCII hexadecimal. > > The FOray font package is therefore now able to correctly gather the > FontBBox and StemV values for a PDF. (The ItalicAngle has also been elusive > -- it is actually in the PFM file under the name etmSlant. The FOray package > now parses and uses it as well.) I think this means that all of the elusive, > estimated pieces are now correctly computed using 1) either a PFA or PFB > file and 2) a PFM file. > > This will also help in future subsetting work, and font embedding > enhancements (like converting ASCII hex fonts to binary to make the file > smaller). > > Since the parsing takes some extra time and memory, I may need to provide > ways to cripple or partially cripple this process for users who don't want > to pay that much for the benefit. > > An AFM parser is still needed, primarily so that users can conveniently > override values if they need to. But I think the backwards-compatible > ability to not require an AFM file is nice. > > The PostScript parser itself is pretty rudimentary. After pulling the errors > and obvious non-operator items out of the list, there appear to be 352 > operators for Level 2 compliance. I have only implemented 42 of them so far. > However, a lot of the brain-bending part of the design work is done, and I > think it should be a good starting place for other PostScript-related > projects, like EPS conversion. Here is the ViewCVS link to the > PSInterpreter: > http://cvs.sourceforge.net/viewcvs.py/foray/foray/foray-ps/src/java/org/fora > y/ps/PSInterpreter.java?view=markup > > The other files are in the same directory. > > I'll probably leave it alone until I need more from it, but I wanted to > update Jeremias and anyone else who is interested. > > Victor Mote Jeremias Maerki
