[NTG-pdftex] gs problem

Reinhard Kotucha reinhard.kotucha at web.de
Mon Oct 25 23:53:14 CEST 2004


>>>>> "Hans" == Hans Hagen <pragma at wxs.nl> writes:

    > hm, i found out that when for instance afm files have lines
    > longer than 256, some programs break on it so either we have to
    > do with fuzzy specs, or rumoured lengths, or lousy programming

This is described in
 http://partners.adobe.com/asn/developer/pdfs/tn/5004.AFM_Spec.pdf 
on page 10:

   | Comments can be present in an AFM file. They are introduced
   | by the keyword Comment and are terminated by the end of
   | line. Lines are no longer than 255 characters long.


    >> The PostScript Language Reference Manual (Appendix B) describes
    >> PS interpreter requirements.  According to this, any PS
    >> interpreter should be able to handle strings of least 65535
    >> bytes.

    > Interesting, i wonder why gs has limitations then; what does the
    > spec say about unknown %%comments? GS breaks on them each time
    > adobe adds a new undocumented one.

From
 http://partners.adobe.com/asn/developer/PDFS/TN/5001.DSC_Spec.pdf
page 21:

   | A non-conforming document is recognized by the %! header
   | comment. Under no circumstances should a non-conforming
   | document use the %!PS-Adobe-3.0 header comment.

Regards,
  Reinhard

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