Re: [ft-devel] GX support now working

[Werner LEMBERG]

> I’m among those developers “craving” for a tool to create test
> fonts, specifically to write unit tests for fontTools.

Good to know :-)

> I checkout out the 010 Editor and the “TTFTemplate.bt" you linked
> to.  It doesn’t look much different from what the sstruct.py and
> sfnt.py modules already do within fontTools.  For each sfnt table,
> fontTools provides a template for (un)packing binary data (to)from
> predefined types.

OK.

> I guess the reason why you believe the test font generator “must be
> on a far lower level than ttx”, is that the latter is meant to
> produce “valid” fonts, so it doesn’t expose all the intricacies of
> the sfnt format which we would like to test (this incidentally is
> what makes it a “textual, human-readable representation of a
> font”…).

Exactly.  If there is a possibility to intentionally bypass the
validity somehow, this would be the way to go.

> I’ll try to see if I can come up with some solution built on top of
> fontTools, and let you know how it goes.

Thanks in advance!


    Werner