diff --git a/src/hb-ot-layout-gpos-table.hh b/src/hb-ot-layout-gpos-table.hh
index 05a6f5edc..0cf969d99 100644
--- a/src/hb-ot-layout-gpos-table.hh
+++ b/src/hb-ot-layout-gpos-table.hh
@@ -1031,7 +1031,7 @@ struct MarkBasePosFormat1
     do {
       if (!skippy_iter.prev ()) return TRACE_RETURN (false);
       /* We only want to attach to the first of a MultipleSubst sequence.  Reject others. */
-      if (0 == get_lig_comp (c->buffer->info[skippy_iter.idx])) break;
+      if (0 == _hb_glyph_info_get_lig_comp (&c->buffer->info[skippy_iter.idx])) break;
       skippy_iter.reject ();
     } while (1);
 
@@ -1152,11 +1152,11 @@ struct MarkLigPosFormat1
      * can directly use the component index.  If not, we attach the mark
      * glyph to the last component of the ligature. */
     unsigned int comp_index;
-    unsigned int lig_id = get_lig_id (c->buffer->info[j]);
-    unsigned int mark_id = get_lig_id (c->buffer->cur());
-    unsigned int mark_comp = get_lig_comp (c->buffer->cur());
+    unsigned int lig_id = _hb_glyph_info_get_lig_id (&c->buffer->info[j]);
+    unsigned int mark_id = _hb_glyph_info_get_lig_id (&c->buffer->cur());
+    unsigned int mark_comp = _hb_glyph_info_get_lig_comp (&c->buffer->cur());
     if (lig_id && lig_id == mark_id && mark_comp > 0)
-      comp_index = MIN (comp_count, get_lig_comp (c->buffer->cur())) - 1;
+      comp_index = MIN (comp_count, _hb_glyph_info_get_lig_comp (&c->buffer->cur())) - 1;
     else
       comp_index = comp_count - 1;
 
@@ -1252,10 +1252,10 @@ struct MarkMarkPosFormat1
 
     unsigned int j = skippy_iter.idx;
 
-    unsigned int id1 = get_lig_id (c->buffer->cur());
-    unsigned int id2 = get_lig_id (c->buffer->info[j]);
-    unsigned int comp1 = get_lig_comp (c->buffer->cur());
-    unsigned int comp2 = get_lig_comp (c->buffer->info[j]);
+    unsigned int id1 = _hb_glyph_info_get_lig_id (&c->buffer->cur());
+    unsigned int id2 = _hb_glyph_info_get_lig_id (&c->buffer->info[j]);
+    unsigned int comp1 = _hb_glyph_info_get_lig_comp (&c->buffer->cur());
+    unsigned int comp2 = _hb_glyph_info_get_lig_comp (&c->buffer->info[j]);
 
     if (likely (id1 == id2)) {
       if (id1 == 0) /* Marks belonging to the same base. */
diff --git a/src/hb-ot-layout-gsub-table.hh b/src/hb-ot-layout-gsub-table.hh
index a07a77925..1a0f183a1 100644
--- a/src/hb-ot-layout-gsub-table.hh
+++ b/src/hb-ot-layout-gsub-table.hh
@@ -302,7 +302,7 @@ struct Sequence
     else
     {
       for (unsigned int i = 0; i < count; i++) {
-	set_lig_props_for_component (c->buffer->cur(), i);
+	_hb_glyph_info_set_lig_props_for_component (&c->buffer->cur(), i);
 	c->output_glyph (substitute.array[i], klass);
       }
       c->buffer->skip_glyph ();
diff --git a/src/hb-ot-layout-gsubgpos-private.hh b/src/hb-ot-layout-gsubgpos-private.hh
index f156b9828..329ba4b4a 100644
--- a/src/hb-ot-layout-gsubgpos-private.hh
+++ b/src/hb-ot-layout-gsubgpos-private.hh
@@ -409,7 +409,7 @@ struct hb_apply_context_t
       if (unlikely (_hb_glyph_info_is_default_ignorable (&info) &&
 		    (ignore_zwnj || !_hb_glyph_info_is_zwnj (&info)) &&
 		    (ignore_zwj || !_hb_glyph_info_is_zwj (&info)) &&
-		    !is_a_ligature (info)))
+		    !_hb_glyph_info_is_ligated (&info)))
 	return SKIP_MAYBE;
 
       return SKIP_NO;
@@ -788,10 +788,10 @@ static inline bool match_input (hb_apply_context_t *c,
   bool is_mark_ligature = !!(buffer->cur().glyph_props() & HB_OT_LAYOUT_GLYPH_PROPS_MARK);
 
   unsigned int total_component_count = 0;
-  total_component_count += get_lig_num_comps (buffer->cur());
+  total_component_count += _hb_glyph_info_get_lig_num_comps (&buffer->cur());
 
-  unsigned int first_lig_id = get_lig_id (buffer->cur());
-  unsigned int first_lig_comp = get_lig_comp (buffer->cur());
+  unsigned int first_lig_id = _hb_glyph_info_get_lig_id (&buffer->cur());
+  unsigned int first_lig_comp = _hb_glyph_info_get_lig_comp (&buffer->cur());
 
   match_positions[0] = buffer->idx;
   for (unsigned int i = 1; i < count; i++)
@@ -800,8 +800,8 @@ static inline bool match_input (hb_apply_context_t *c,
 
     match_positions[i] = skippy_iter.idx;
 
-    unsigned int this_lig_id = get_lig_id (buffer->info[skippy_iter.idx]);
-    unsigned int this_lig_comp = get_lig_comp (buffer->info[skippy_iter.idx]);
+    unsigned int this_lig_id = _hb_glyph_info_get_lig_id (&buffer->info[skippy_iter.idx]);
+    unsigned int this_lig_comp = _hb_glyph_info_get_lig_comp (&buffer->info[skippy_iter.idx]);
 
     if (first_lig_id && first_lig_comp) {
       /* If first component was attached to a previous ligature component,
@@ -818,7 +818,7 @@ static inline bool match_input (hb_apply_context_t *c,
     }
 
     is_mark_ligature = is_mark_ligature && (buffer->info[skippy_iter.idx].glyph_props() & HB_OT_LAYOUT_GLYPH_PROPS_MARK);
-    total_component_count += get_lig_num_comps (buffer->info[skippy_iter.idx]);
+    total_component_count += _hb_glyph_info_get_lig_num_comps (&buffer->info[skippy_iter.idx]);
   }
 
   *end_offset = skippy_iter.idx - buffer->idx + 1;
@@ -874,14 +874,14 @@ static inline void ligate_input (hb_apply_context_t *c,
    */
 
   unsigned int klass = is_mark_ligature ? 0 : HB_OT_LAYOUT_GLYPH_PROPS_LIGATURE;
-  unsigned int lig_id = is_mark_ligature ? 0 : allocate_lig_id (buffer);
-  unsigned int last_lig_id = get_lig_id (buffer->cur());
-  unsigned int last_num_components = get_lig_num_comps (buffer->cur());
+  unsigned int lig_id = is_mark_ligature ? 0 : _hb_allocate_lig_id (buffer);
+  unsigned int last_lig_id = _hb_glyph_info_get_lig_id (&buffer->cur());
+  unsigned int last_num_components = _hb_glyph_info_get_lig_num_comps (&buffer->cur());
   unsigned int components_so_far = last_num_components;
 
   if (!is_mark_ligature)
   {
-    set_lig_props_for_ligature (buffer->cur(), lig_id, total_component_count);
+    _hb_glyph_info_set_lig_props_for_ligature (&buffer->cur(), lig_id, total_component_count);
     if (_hb_glyph_info_get_general_category (&buffer->cur()) == HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK)
       _hb_glyph_info_set_general_category (&buffer->cur(), HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER);
   }
@@ -893,14 +893,14 @@ static inline void ligate_input (hb_apply_context_t *c,
     {
       if (!is_mark_ligature) {
 	unsigned int new_lig_comp = components_so_far - last_num_components +
-				    MIN (MAX (get_lig_comp (buffer->cur()), 1u), last_num_components);
-	set_lig_props_for_mark (buffer->cur(), lig_id, new_lig_comp);
+				    MIN (MAX (_hb_glyph_info_get_lig_comp (&buffer->cur()), 1u), last_num_components);
+	_hb_glyph_info_set_lig_props_for_mark (&buffer->cur(), lig_id, new_lig_comp);
       }
       buffer->next_glyph ();
     }
 
-    last_lig_id = get_lig_id (buffer->cur());
-    last_num_components = get_lig_num_comps (buffer->cur());
+    last_lig_id = _hb_glyph_info_get_lig_id (&buffer->cur());
+    last_num_components = _hb_glyph_info_get_lig_num_comps (&buffer->cur());
     components_so_far += last_num_components;
 
     /* Skip the base glyph */
@@ -910,10 +910,10 @@ static inline void ligate_input (hb_apply_context_t *c,
   if (!is_mark_ligature && last_lig_id) {
     /* Re-adjust components for any marks following. */
     for (unsigned int i = buffer->idx; i < buffer->len; i++) {
-      if (last_lig_id == get_lig_id (buffer->info[i])) {
+      if (last_lig_id == _hb_glyph_info_get_lig_id (&buffer->info[i])) {
 	unsigned int new_lig_comp = components_so_far - last_num_components +
-				    MIN (MAX (get_lig_comp (buffer->info[i]), 1u), last_num_components);
-	set_lig_props_for_mark (buffer->info[i], lig_id, new_lig_comp);
+				    MIN (MAX (_hb_glyph_info_get_lig_comp (&buffer->info[i]), 1u), last_num_components);
+	_hb_glyph_info_set_lig_props_for_mark (&buffer->info[i], lig_id, new_lig_comp);
       } else
 	break;
     }
diff --git a/src/hb-ot-layout-private.hh b/src/hb-ot-layout-private.hh
index 5b16dfc4f..406a04244 100644
--- a/src/hb-ot-layout-private.hh
+++ b/src/hb-ot-layout-private.hh
@@ -191,7 +191,8 @@ _hb_glyph_info_set_unicode_props (hb_glyph_info_t *info, hb_unicode_funcs_t *uni
 }
 
 inline void
-_hb_glyph_info_set_general_category (hb_glyph_info_t *info, hb_unicode_general_category_t gen_cat)
+_hb_glyph_info_set_general_category (hb_glyph_info_t *info,
+				     hb_unicode_general_category_t gen_cat)
 {
   info->unicode_props0() = (unsigned int) gen_cat | ((info->unicode_props0()) & ~MASK0_GEN_CAT);
 }
@@ -203,7 +204,8 @@ _hb_glyph_info_get_general_category (const hb_glyph_info_t *info)
 }
 
 inline void
-_hb_glyph_info_set_modified_combining_class (hb_glyph_info_t *info, unsigned int modified_class)
+_hb_glyph_info_set_modified_combining_class (hb_glyph_info_t *info,
+					     unsigned int modified_class)
 {
   info->unicode_props1() = modified_class;
 }
@@ -264,52 +266,58 @@ _hb_glyph_info_flip_joiners (hb_glyph_info_t *info)
  */
 #define IS_LIG_BASE 0x10
 static inline void
-set_lig_props_for_ligature (hb_glyph_info_t &info, unsigned int lig_id, unsigned int lig_num_comps)
+_hb_glyph_info_set_lig_props_for_ligature (hb_glyph_info_t *info,
+					   unsigned int lig_id,
+					   unsigned int lig_num_comps)
 {
-  info.lig_props() = (lig_id << 5) | IS_LIG_BASE | (lig_num_comps & 0x0F);
+  info->lig_props() = (lig_id << 5) | IS_LIG_BASE | (lig_num_comps & 0x0F);
 }
 static inline void
-set_lig_props_for_mark (hb_glyph_info_t &info, unsigned int lig_id, unsigned int lig_comp)
+_hb_glyph_info_set_lig_props_for_mark (hb_glyph_info_t *info,
+				       unsigned int lig_id,
+				       unsigned int lig_comp)
 {
-  info.lig_props() = (lig_id << 5) | (lig_comp & 0x0F);
+  info->lig_props() = (lig_id << 5) | (lig_comp & 0x0F);
 }
 static inline void
-set_lig_props_for_component (hb_glyph_info_t &info, unsigned int comp)
+_hb_glyph_info_set_lig_props_for_component (hb_glyph_info_t *info, unsigned int comp)
 {
-  set_lig_props_for_mark (info, 0, comp);
+  _hb_glyph_info_set_lig_props_for_mark (info, 0, comp);
 }
 
 static inline unsigned int
-get_lig_id (const hb_glyph_info_t &info)
+_hb_glyph_info_get_lig_id (const hb_glyph_info_t *info)
 {
-  return info.lig_props() >> 5;
+  return info->lig_props() >> 5;
 }
 static inline bool
-is_a_ligature (const hb_glyph_info_t &info)
+_hb_glyph_info_is_ligated (const hb_glyph_info_t *info)
 {
-  return !!(info.lig_props() & IS_LIG_BASE);
+  return !!(info->lig_props() & IS_LIG_BASE);
 }
 static inline unsigned int
-get_lig_comp (const hb_glyph_info_t &info)
+_hb_glyph_info_get_lig_comp (const hb_glyph_info_t *info)
 {
-  if (is_a_ligature (info))
+  if (_hb_glyph_info_is_ligated (info))
     return 0;
   else
-    return info.lig_props() & 0x0F;
+    return info->lig_props() & 0x0F;
 }
 static inline unsigned int
-get_lig_num_comps (const hb_glyph_info_t &info)
+_hb_glyph_info_get_lig_num_comps (const hb_glyph_info_t *info)
 {
-  if ((info.glyph_props() & HB_OT_LAYOUT_GLYPH_PROPS_LIGATURE) && is_a_ligature (info))
-    return info.lig_props() & 0x0F;
+  if ((info->glyph_props() & HB_OT_LAYOUT_GLYPH_PROPS_LIGATURE) &&
+      _hb_glyph_info_is_ligated (info))
+    return info->lig_props() & 0x0F;
   else
     return 1;
 }
 
-static inline uint8_t allocate_lig_id (hb_buffer_t *buffer) {
+static inline uint8_t
+_hb_allocate_lig_id (hb_buffer_t *buffer) {
   uint8_t lig_id = buffer->next_serial () & 0x07;
   if (unlikely (!lig_id))
-    lig_id = allocate_lig_id (buffer); /* in case of overflow */
+    lig_id = _hb_allocate_lig_id (buffer); /* in case of overflow */
   return lig_id;
 }
 
diff --git a/src/hb-ot-shape-complex-indic.cc b/src/hb-ot-shape-complex-indic.cc
index bc79025f7..0835f7dbe 100644
--- a/src/hb-ot-shape-complex-indic.cc
+++ b/src/hb-ot-shape-complex-indic.cc
@@ -141,7 +141,7 @@ static inline bool
 is_one_of (const hb_glyph_info_t &info, unsigned int flags)
 {
   /* If it ligated, all bets are off. */
-  if (is_a_ligature (info)) return false;
+  if (_hb_glyph_info_is_ligated (&info)) return false;
   return !!(FLAG (info.indic_category()) & flags);
 }
 
@@ -1405,7 +1405,8 @@ final_reordering_syllable (const hb_ot_shape_plan_t *plan,
    */
   if (start + 1 < end &&
       info[start].indic_position() == POS_RA_TO_BECOME_REPH &&
-      ((info[start].indic_category() == OT_Repha) ^ is_a_ligature (info[start])))
+      ((info[start].indic_category() == OT_Repha) ^
+       _hb_glyph_info_is_ligated (&info[start])))
   {
     unsigned int new_reph_pos;
     reph_position_t reph_pos = indic_plan->config->reph_pos;
diff --git a/src/hb-ot-shape-complex-myanmar.cc b/src/hb-ot-shape-complex-myanmar.cc
index 17811b59b..b5ac10746 100644
--- a/src/hb-ot-shape-complex-myanmar.cc
+++ b/src/hb-ot-shape-complex-myanmar.cc
@@ -151,7 +151,7 @@ static inline bool
 is_one_of (const hb_glyph_info_t &info, unsigned int flags)
 {
   /* If it ligated, all bets are off. */
-  if (is_a_ligature (info)) return false;
+  if (_hb_glyph_info_is_ligated (&info)) return false;
   return !!(FLAG (info.myanmar_category()) & flags);
 }
 
diff --git a/src/hb-ot-shape-fallback.cc b/src/hb-ot-shape-fallback.cc
index 284d030d5..a7e3b8e9c 100644
--- a/src/hb-ot-shape-fallback.cc
+++ b/src/hb-ot-shape-fallback.cc
@@ -300,8 +300,8 @@ position_around_base (const hb_ot_shape_plan_t *plan,
   base_extents.x_bearing += buffer->pos[base].x_offset;
   base_extents.y_bearing += buffer->pos[base].y_offset;
 
-  unsigned int lig_id = get_lig_id (buffer->info[base]);
-  unsigned int num_lig_components = get_lig_num_comps (buffer->info[base]);
+  unsigned int lig_id = _hb_glyph_info_get_lig_id (&buffer->info[base]);
+  unsigned int num_lig_components = _hb_glyph_info_get_lig_num_comps (&buffer->info[base]);
 
   hb_position_t x_offset = 0, y_offset = 0;
   if (HB_DIRECTION_IS_FORWARD (buffer->props.direction)) {
@@ -317,8 +317,8 @@ position_around_base (const hb_ot_shape_plan_t *plan,
     if (_hb_glyph_info_get_modified_combining_class (&buffer->info[i]))
     {
       if (num_lig_components > 1) {
-	unsigned int this_lig_id = get_lig_id (buffer->info[i]);
-	unsigned int this_lig_component = get_lig_comp (buffer->info[i]) - 1;
+	unsigned int this_lig_id = _hb_glyph_info_get_lig_id (&buffer->info[i]);
+	unsigned int this_lig_component = _hb_glyph_info_get_lig_comp (&buffer->info[i]) - 1;
 	/* Conditions for attaching to the last component. */
 	if (!lig_id || lig_id != this_lig_id || this_lig_component >= num_lig_components)
 	  this_lig_component = num_lig_components - 1;
diff --git a/src/hb-ot-shape.cc b/src/hb-ot-shape.cc
index 4ed6b8420..e68344b92 100644
--- a/src/hb-ot-shape.cc
+++ b/src/hb-ot-shape.cc
@@ -546,7 +546,7 @@ hb_ot_hide_default_ignorables (hb_ot_shape_context_t *c)
   unsigned int j = 0;
   for (unsigned int i = 0; i < count; i++)
   {
-    if (unlikely (!is_a_ligature (info[i]) &&
+    if (unlikely (!_hb_glyph_info_is_ligated (&info[i]) &&
 		  _hb_glyph_info_is_default_ignorable (&info[i])))
     {
       if (space_status == SPACE_DONT_KNOW)