[HarfBuzz] Adding debug support to hb

Martin Hosken mhosken at gmail.com
Tue Feb 11 03:11:47 CET 2014

Dear Behdad,

As we approach a v1.0 I would like to encourage us to add debug support for font developers.

Looking at the rather nice hb_auto_trace, it would really help if the trace routine could be passed the buffer as well as the lookup being traced. That way a font debugger could show the glyph string state before and after a lookup runs, the position in the glyph string where the lookup is executed and which lookup executed.


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