commit 976c8f455221eb599d1c446eafd88d51d7d2aa65
author Behdad Esfahbod <behdad@behdad.org> Wed Jul 16 15:34:20 2014 -0400
committer Behdad Esfahbod <behdad@behdad.org> Wed Jul 16 15:34:20 2014 -0400
tree d19f800fe6442515511bee1d15d6c257881dbc4d
parent bcba8b45024e1eca8be77ca2657de1dc44dbf8fb

New API: hb_buffer_[sg]et_replacement_codepoint()

With this change, we now by default replace broken UTF-8/16/32 bits
with U+FFFD.  This can be changed by calling new API on the buffer.
Previously the replacement value used to be (hb_codepoint_t)-1.

Note that hb_buffer_clear_contents() does NOT reset the replacement
character.

See discussion here:

https://github.com/behdad/harfbuzz/commit/6f13b6d62daae4989e3cc2fe4b168e5c59650964

New API:

  hb_buffer_set_replacement_codepoint()
  hb_buffer_get_replacement_codepoint()