static inline void
apply_string (OT::hb_apply_context_t *c,
const typename Proxy::Lookup &lookup,
const hb_ot_layout_lookup_accelerator_t &accel)
{
hb_buffer_t *buffer = c->buffer;
if (unlikely (!buffer->len || !c->lookup_mask))
return;
c->set_lookup_props (lookup.get_props ());
hb_get_subtables_context_t::array_t subtables;
hb_get_subtables_context_t c_get_subtables (subtables);
lookup.dispatch (&c_get_subtables);
if (likely (!lookup.is_reverse ()))
{
/* in/out forward substitution/positioning */
if (Proxy::table_index == 0)
buffer->clear_output ();
buffer->idx = 0;
bool ret;
ret = apply_forward (c, accel, subtables);
if (ret)
{
if (!Proxy::inplace)
buffer->swap_buffers ();
else
assert (!buffer->has_separate_output ());
}
}
else
{
/* in-place backward substitution/positioning */
if (Proxy::table_index == 0)
buffer->remove_output ();
buffer->idx = buffer->len - 1;
apply_backward (c, accel, subtables);
}
}
optional<expr> apply_strategy() {
std::string s_name(get_config().m_strategy);
if (s_name == "preprocess") {
return apply_preprocess();
} else if (s_name == "simp") {
return apply_simp();
} else if (s_name == "simp_nohyps") {
return apply_simp_nohyps();
} else if (s_name == "simple") {
return apply_simple();
} else if (s_name == "all") {
// TODO(Leo):
return apply_simple();
} else if (s_name == "cc") {
return apply_cc();
} else if (s_name == "grind") {
return apply_grind();
} else if (s_name == "grind_simp") {
return apply_grind_simp();
} else if (s_name == "core_grind") {
return apply_core_grind();
} else if (s_name == "ematch") {
return apply_ematch();
} else if (s_name == "ematch_simp") {
return apply_ematch_simp();
} else if (s_name == "rec_ematch_simp") {
return apply_rec_ematch_simp();
} else if (s_name == "rec_simp") {
return apply_rec_simp();
} else if (s_name == "constructor") {
return apply_constructor();
} else if (s_name == "unit") {
return apply_unit();
} else if (s_name == "backward") {
return apply_backward();
} else {
throw exception(sstream() << "unknown blast strategy '" << s_name << "'");
}
}
