From: Mark E. Shoulson (mark@kli.org)
Date: Tue Apr 05 2005 - 19:42:40 CST
John Hudson wrote:
> Adam, understandably, has created a tutorial on how to implement the 
> <ccmp> feature using FontLab, because FontLab does not currently 
> support mark positioning lookups. To implement the <mark> feature, one 
> needs to use MS VOLT, which is why it is the OTL tool of choice for 
> complex script developers.
>
Thanks for the clarification; these four-letter features are hard to 
keep straight.  I mention for the edification of the curious that 
FontForge, an open-source font-design program, implements the <mark> 
feature (so far as I can tell)
~mark
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