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[unsafe-to-concat] Add annotations to GPOS and kern 

Failures from 13 to 14.
This commit is contained in:
Behdad Esfahbod 2021-11-20 11:46:48 -07:00
parent 36b1561715
commit e1cbd4539f
2 changed files with 40 additions and 7 deletions
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4
src/hb-kern.hh
View File

@ -67,8 +67,10 @@ struct hb_kern_machine_t
}
skippy_iter.reset (idx, 1);
if (!skippy_iter.next ())
unsigned unsafe_to;
if (!skippy_iter.next (&unsafe_to))
{
buffer->unsafe_to_concat (idx, unsafe_to);
idx++;
continue;
}

43
src/hb-ot-layout-gpos-table.hh
View File

@ -1362,7 +1362,12 @@ struct PairPosFormat1
hb_ot_apply_context_t::skipping_iterator_t &skippy_iter = c->iter_input;
skippy_iter.reset (buffer->idx, 1);
if (!skippy_iter.next ()) return_trace (false);
unsigned unsafe_to;
if (!skippy_iter.next (&unsafe_to))
{
buffer->unsafe_to_concat (buffer->idx, unsafe_to);
return_trace (false);
}
return_trace ((this+pairSet[index]).apply (c, valueFormat, skippy_iter.idx));
}
@ -1555,7 +1560,12 @@ struct PairPosFormat2
hb_ot_apply_context_t::skipping_iterator_t &skippy_iter = c->iter_input;
skippy_iter.reset (buffer->idx, 1);
if (!skippy_iter.next ()) return_trace (false);
unsigned unsafe_to;
if (!skippy_iter.next (&unsafe_to))
{
buffer->unsafe_to_concat (buffer->idx, unsafe_to);
return_trace (false);
}
unsigned int len1 = valueFormat1.get_len ();
unsigned int len2 = valueFormat2.get_len ();
@ -1861,7 +1871,12 @@ struct CursivePosFormat1
hb_ot_apply_context_t::skipping_iterator_t &skippy_iter = c->iter_input;
skippy_iter.reset (buffer->idx, 1);
if (!skippy_iter.prev ()) return_trace (false);
unsigned unsafe_from;
if (!skippy_iter.prev (&unsafe_from))
{
buffer->unsafe_to_concat_from_outbuffer (unsafe_from, buffer->idx);
return_trace (false);
}
const EntryExitRecord &prev_record = entryExitRecord[(this+coverage).get_coverage (buffer->info[skippy_iter.idx].codepoint)];
if (!prev_record.exitAnchor) return_trace (false);
@ -2128,7 +2143,13 @@ struct MarkBasePosFormat1
skippy_iter.reset (buffer->idx, 1);
skippy_iter.set_lookup_props (LookupFlag::IgnoreMarks);
do {
if (!skippy_iter.prev ()) return_trace (false);
unsigned unsafe_from;
if (!skippy_iter.prev (&unsafe_from))
{
buffer->unsafe_to_concat_from_outbuffer (unsafe_from, buffer->idx);
return_trace (false);
}
/* We only want to attach to the first of a MultipleSubst sequence.
* https://github.com/harfbuzz/harfbuzz/issues/740
* Reject others...
@ -2382,7 +2403,12 @@ struct MarkLigPosFormat1
hb_ot_apply_context_t::skipping_iterator_t &skippy_iter = c->iter_input;
skippy_iter.reset (buffer->idx, 1);
skippy_iter.set_lookup_props (LookupFlag::IgnoreMarks);
if (!skippy_iter.prev ()) return_trace (false);
unsigned unsafe_from;
if (!skippy_iter.prev (&unsafe_from))
{
buffer->unsafe_to_concat_from_outbuffer (unsafe_from, buffer->idx);
return_trace (false);
}
/* Checking that matched glyph is actually a ligature by GDEF is too strong; disabled */
//if (!_hb_glyph_info_is_ligature (&buffer->info[skippy_iter.idx])) { return_trace (false); }
@ -2579,7 +2605,12 @@ struct MarkMarkPosFormat1
hb_ot_apply_context_t::skipping_iterator_t &skippy_iter = c->iter_input;
skippy_iter.reset (buffer->idx, 1);
skippy_iter.set_lookup_props (c->lookup_props & ~LookupFlag::IgnoreFlags);
if (!skippy_iter.prev ()) return_trace (false);
unsigned unsafe_from;
if (!skippy_iter.prev (&unsafe_from))
{
buffer->unsafe_to_concat_from_outbuffer (unsafe_from, buffer->idx);
return_trace (false);
}
if (!_hb_glyph_info_is_mark (&buffer->info[skippy_iter.idx])) { return_trace (false); }