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Re: [ft-devel] [GSoC] Extending the CF2 interpreter

From: Dave Arnold
Subject: Re: [ft-devel] [GSoC] Extending the CF2 interpreter
Date: Mon, 26 Jun 2017 16:04:24 -0700
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1

Hi Ewald,

I agree with your conclusion about number formats. Except for the 32000 (not 
32768) issue, Type 1 and CFF should be the same.

I'm sorry that I don't know enough about Type 1 fonts to answer your other questions. I 
had never heard of the "postscript stack" before you asked, and I don't have 
any test fonts for it. It appears that Type 1 interpreters outside of an actual 
PostScript environment can make simplifying assumptions.


On 6/21/2017 7:56 PM, Ewald Hew wrote:

On the other hand, this means there should be no other issues with
number format between Type 1 or CFF ops, as long as the operands are
pushed correctly as above. Do correct me if I'm wrong.


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