src/java.desktop/share/native/libfontmanager/harfbuzz/hb-ot-layout-gsub-table.hh

*** 656,666 ****
      unsigned int match_positions[HB_MAX_CONTEXT_LENGTH];
  
      if (likely (!match_input (c, count,
                                &component[1],
                                match_glyph,
!                               NULL,
                                &match_length,
                                match_positions,
                                &is_mark_ligature,
                                &total_component_count)))
        return_trace (false);
--- 656,666 ----
      unsigned int match_positions[HB_MAX_CONTEXT_LENGTH];
  
      if (likely (!match_input (c, count,
                                &component[1],
                                match_glyph,
!                               nullptr,
                                &match_length,
                                match_positions,
                                &is_mark_ligature,
                                &total_component_count)))
        return_trace (false);
*** 1012,1029 ****
      if (likely (index == NOT_COVERED)) return_trace (false);
  
      const OffsetArrayOf<Coverage> &lookahead = StructAfter<OffsetArrayOf<Coverage> > (backtrack);
      const ArrayOf<GlyphID> &substitute = StructAfter<ArrayOf<GlyphID> > (lookahead);
  
      if (match_backtrack (c,
                           backtrack.len, (USHORT *) backtrack.array,
!                          match_coverage, this) &&
          match_lookahead (c,
                           lookahead.len, (USHORT *) lookahead.array,
                           match_coverage, this,
!                          1))
      {
        c->replace_glyph_inplace (substitute[index]);
        /* Note: We DON'T decrease buffer->idx.  The main loop does it
         * for us.  This is useful for preventing surprises if someone
         * calls us through a Context lookup. */
        return_trace (true);
--- 1012,1032 ----
      if (likely (index == NOT_COVERED)) return_trace (false);
  
      const OffsetArrayOf<Coverage> &lookahead = StructAfter<OffsetArrayOf<Coverage> > (backtrack);
      const ArrayOf<GlyphID> &substitute = StructAfter<ArrayOf<GlyphID> > (lookahead);
  
+   unsigned int start_index = 0, end_index = 0;
      if (match_backtrack (c,
                           backtrack.len, (USHORT *) backtrack.array,
!                          match_coverage, this,
!                          &start_index) &&
          match_lookahead (c,
                           lookahead.len, (USHORT *) lookahead.array,
                           match_coverage, this,
!                          1, &end_index))
      {
+       c->buffer->unsafe_to_break_from_outbuffer (start_index, end_index);
        c->replace_glyph_inplace (substitute[index]);
        /* Note: We DON'T decrease buffer->idx.  The main loop does it
         * for us.  This is useful for preventing surprises if someone
         * calls us through a Context lookup. */
        return_trace (true);