[Fontconfig-bugs] [Bug 38737] Wishlist: support FC_POSTSCRIPT_NAME

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=38737

--- Comment #7 from Paul Sladen <freedesktop at paul.sladen.org> ---
Akira, thanks for the update!

One thought I'd like to add, regarding the synthesis of missing data; is that
when it comes to /debugging/ font-related issue, a large percentage of the
(invalid) issues relate to sythesis and substitution occuring in FC or the
toolkits.  It is often the difficulty in seeing past where the sythesis (or
simplification) of data is occuring, that hampers the debugging.

Thus, it might arguably be better to cleanly /fail/ if a request is made for a
TT_ attribute that doesn't exist (such as TT_NAME_ID_PS_NAME), than to return
something that wasn't or isn't there.

Perhaps the printing issue highlighted (where synthesis of missing attributes
is needed) could be covered with a helper function of something like
ReturnUniqueNameAsPostscript().  Such a function() (or ENUM) could then return
the TT_NAME_ID_PS_NAME if it exists, or make something up.  But in both cases,
without obscuring the ability of an application /that cares/ to uniquely query
or get the raw data.

Does that make sense?  I'm happy to expand on the above if not.

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