unsigned int klass = c->buffer->cur().glyph_props() &
HB_OT_LAYOUT_GLYPH_PROPS_LIGATURE ? HB_OT_LAYOUT_GLYPH_PROPS_BASE_GLYPH : 0;
unsigned int count = substitute.len;
- for (unsigned int i = 0; i < count; i++) {
- set_lig_props_for_component (c->buffer->cur(), i);
- c->output_glyph (substitute.array[i], klass);
+ if (count == 1) /* Special-case to make it in-place. */
+ {
+ c->replace_glyph (substitute.array[0]);
+ }
+ else
+ {
+ for (unsigned int i = 0; i < count; i++) {
+ set_lig_props_for_component (c->buffer->cur(), i);
+ c->output_glyph (substitute.array[i], klass);
+ }
+ c->buffer->skip_glyph ();
}
- c->buffer->skip_glyph ();
return TRACE_RETURN (true);
}