Reorder all internal Harfbuzz structures by member size.

Signed-off-by: Simon Hausmann <simon.hausmann@nokia.com>
Signed-off-by: Lars Knoll <lars.knoll@nokia.com>

7 files changed, 115 insertions, 120 deletions

diff --git a/src/harfbuzz-buffer.h b/src/harfbuzz-buffer.h
index 7e6ad83..0d7c2c2 100644
--- a/src/harfbuzz-buffer.h
+++ b/src/harfbuzz-buffer.h
@@ -52,13 +52,13 @@ typedef struct HB_PositionRec_ {
   HB_Fixed   y_advance;
   HB_UShort  back;            /* number of glyphs to go back
 				 for drawing current glyph   */
+  HB_Short  cursive_chain;   /* character to which this connects,
+				 may be positive or negative; used
+				 only internally                     */
   HB_Bool    new_advance;     /* if set, the advance width values are
 				 absolute, i.e., they won't be
 				 added to the original glyph's value
 				 but rather replace them.            */
-  HB_Short  cursive_chain;   /* character to which this connects,
-				 may be positive or negative; used
-				 only internally                     */
 } HB_PositionRec, *HB_Position;
 
 
@@ -70,12 +70,12 @@ typedef struct HB_BufferRec_{
   HB_UInt    in_pos;
   HB_UInt    out_pos;
   
-  HB_Bool       separate_out;
   HB_GlyphItem  in_string;
   HB_GlyphItem  out_string;
   HB_GlyphItem  alt_string;
   HB_Position   positions;
   HB_UShort      max_ligID;
+  HB_Bool       separate_out;
 } HB_BufferRec, *HB_Buffer;
 
 HB_Error
diff --git a/src/harfbuzz-gdef-private.h b/src/harfbuzz-gdef-private.h
index da29d99..2a6d958 100644
--- a/src/harfbuzz-gdef-private.h
+++ b/src/harfbuzz-gdef-private.h
@@ -42,8 +42,8 @@ HB_BEGIN_HEADER
 
 struct  HB_AttachPoint_
 {
-  HB_UShort   PointCount;             /* size of the PointIndex array */
   HB_UShort*  PointIndex;             /* array of contour points      */
+  HB_UShort   PointCount;             /* size of the PointIndex array */
 };
 
 /* Ligature Caret related structures */
@@ -66,8 +66,8 @@ typedef struct HB_CaretValueFormat2_  HB_CaretValueFormat2;
 
 struct  HB_CaretValueFormat3_
 {
-  HB_Short    Coordinate;             /* x or y value (in design units) */
   HB_Device*  Device;                 /* Device table for x or y value  */
+  HB_Short    Coordinate;             /* x or y value (in design units) */
 };
 
 typedef struct HB_CaretValueFormat3_  HB_CaretValueFormat3;
@@ -85,8 +85,6 @@ typedef struct HB_CaretValueFormat4_  HB_CaretValueFormat4;
 
 struct  HB_CaretValue_
 {
-  HB_Byte  CaretValueFormat;          /* 1, 2, 3, or 4 */
-
   union
   {
     HB_CaretValueFormat1  cvf1;
@@ -96,6 +94,8 @@ struct  HB_CaretValue_
     HB_CaretValueFormat4  cvf4;
 #endif
   } cvf;
+
+  HB_Byte  CaretValueFormat;          /* 1, 2, 3, or 4 */
 };
 
 typedef struct HB_CaretValue_  HB_CaretValue;
@@ -103,10 +103,9 @@ typedef struct HB_CaretValue_  HB_CaretValue;
 
 struct  HB_LigGlyph_
 {
-  HB_Bool          loaded;
-
-  HB_UShort        CaretCount;        /* number of caret values */
   HB_CaretValue*  CaretValue;        /* array of caret values  */
+  HB_UShort        CaretCount;        /* number of caret values */
+  HB_Bool          loaded;
 };
 
 
diff --git a/src/harfbuzz-gdef.h b/src/harfbuzz-gdef.h
index 9b5dee0..f9a03dd 100644
--- a/src/harfbuzz-gdef.h
+++ b/src/harfbuzz-gdef.h
@@ -48,12 +48,11 @@ typedef struct HB_AttachPoint_  HB_AttachPoint;
 
 struct  HB_AttachList_
 {
-  HB_Bool           loaded;
-
+  HB_AttachPoint*   AttachPoint;      /* array of AttachPoint tables */
   HB_Coverage       Coverage;         /* Coverage table              */
   HB_UShort         GlyphCount;       /* number of glyphs with
 					 attachments                 */
-  HB_AttachPoint*   AttachPoint;      /* array of AttachPoint tables */
+  HB_Bool           loaded;
 };
 
 typedef struct HB_AttachList_  HB_AttachList;
@@ -62,11 +61,10 @@ typedef struct HB_LigGlyph_  HB_LigGlyph;
 
 struct  HB_LigCaretList_
 {
-  HB_Bool        loaded;
-
+  HB_LigGlyph*   LigGlyph;            /* array of LigGlyph tables  */
   HB_Coverage    Coverage;            /* Coverage table            */
   HB_UShort      LigGlyphCount;       /* number of ligature glyphs */
-  HB_LigGlyph*   LigGlyph;            /* array of LigGlyph tables  */
+  HB_Bool        loaded;
 };
 
 typedef struct HB_LigCaretList_  HB_LigCaretList;
@@ -95,18 +93,18 @@ typedef struct HB_LigCaretList_  HB_LigCaretList;
 
 struct  HB_GDEFHeader_
 {
+  HB_UShort**          NewGlyphClasses;
   HB_UInt             offset;
+  HB_UInt             MarkAttachClassDef_offset;
 
   HB_16Dot16             Version;
 
   HB_ClassDefinition   GlyphClassDef;
   HB_AttachList        AttachList;
   HB_LigCaretList      LigCaretList;
-  HB_UInt             MarkAttachClassDef_offset;
   HB_ClassDefinition   MarkAttachClassDef;        /* new in OT 1.2 */
 
   HB_UShort            LastGlyph;
-  HB_UShort**          NewGlyphClasses;
 };
 
 typedef struct HB_GDEFHeader_   HB_GDEFHeader;
diff --git a/src/harfbuzz-gsub-private.h b/src/harfbuzz-gsub-private.h
index 9f16546..7eb329e 100644
--- a/src/harfbuzz-gsub-private.h
+++ b/src/harfbuzz-gsub-private.h
@@ -51,9 +51,9 @@ typedef struct HB_SingleSubstFormat1_  HB_SingleSubstFormat1;
 
 struct  HB_SingleSubstFormat2_
 {
+  HB_UShort*  Substitute;             /* array of substitute glyph IDs */
   HB_UShort   GlyphCount;             /* number of glyph IDs in
 					 Substitute array              */
-  HB_UShort*  Substitute;             /* array of substitute glyph IDs */
 };
 
 typedef struct HB_SingleSubstFormat2_  HB_SingleSubstFormat2;
@@ -61,14 +61,14 @@ typedef struct HB_SingleSubstFormat2_  HB_SingleSubstFormat2;
 
 struct  HB_SingleSubst_
 {
-  HB_Byte     SubstFormat;            /* 1 or 2         */
-  HB_Coverage  Coverage;             /* Coverage table */
-
   union
   {
     HB_SingleSubstFormat1  ssf1;
     HB_SingleSubstFormat2  ssf2;
   } ssf;
+
+  HB_Coverage  Coverage;             /* Coverage table */
+  HB_Byte     SubstFormat;            /* 1 or 2         */
 };
 
 typedef struct HB_SingleSubst_  HB_SingleSubst;
@@ -78,10 +78,10 @@ typedef struct HB_SingleSubst_  HB_SingleSubst;
 
 struct  HB_Sequence_
 {
-  HB_UShort   GlyphCount;             /* number of glyph IDs in the
-					 Substitute array           */
   HB_UShort*  Substitute;             /* string of glyph IDs to
 					 substitute                 */
+  HB_UShort   GlyphCount;             /* number of glyph IDs in the
+					 Substitute array           */
 };
 
 typedef struct HB_Sequence_  HB_Sequence;
@@ -89,10 +89,10 @@ typedef struct HB_Sequence_  HB_Sequence;
 
 struct  HB_MultipleSubst_
 {
-  HB_UShort      SubstFormat;         /* always 1                  */
+  HB_Sequence*  Sequence;            /* array of Sequence tables  */
   HB_Coverage   Coverage;            /* Coverage table            */
+  HB_UShort      SubstFormat;         /* always 1                  */
   HB_UShort      SequenceCount;       /* number of Sequence tables */
-  HB_Sequence*  Sequence;            /* array of Sequence tables  */
 };
 
 typedef struct HB_MultipleSubst_  HB_MultipleSubst;
@@ -102,9 +102,9 @@ typedef struct HB_MultipleSubst_  HB_MultipleSubst;
 
 struct  HB_AlternateSet_
 {
+  HB_UShort*  Alternate;              /* array of alternate glyph IDs */
   HB_UShort   GlyphCount;             /* number of glyph IDs in the
 					 Alternate array              */
-  HB_UShort*  Alternate;              /* array of alternate glyph IDs */
 };
 
 typedef struct HB_AlternateSet_  HB_AlternateSet;
@@ -112,11 +112,11 @@ typedef struct HB_AlternateSet_  HB_AlternateSet;
 
 struct  HB_AlternateSubst_
 {
-  HB_UShort          SubstFormat;     /* always 1                      */
+  HB_AlternateSet*  AlternateSet;    /* array of AlternateSet tables  */
   HB_Coverage       Coverage;        /* Coverage table                */
+  HB_UShort          SubstFormat;     /* always 1                      */
   HB_UShort          AlternateSetCount;
 				      /* number of AlternateSet tables */
-  HB_AlternateSet*  AlternateSet;    /* array of AlternateSet tables  */
 };
 
 typedef struct HB_AlternateSubst_  HB_AlternateSubst;
@@ -126,10 +126,10 @@ typedef struct HB_AlternateSubst_  HB_AlternateSubst;
 
 struct  HB_Ligature_
 {
+  HB_UShort*  Component;              /* array of component glyph IDs     */
   HB_UShort   LigGlyph;               /* glyphID of ligature
 					 to substitute                    */
   HB_UShort   ComponentCount;         /* number of components in ligature */
-  HB_UShort*  Component;              /* array of component glyph IDs     */
 };
 
 typedef struct HB_Ligature_  HB_Ligature;
@@ -137,8 +137,8 @@ typedef struct HB_Ligature_  HB_Ligature;
 
 struct  HB_LigatureSet_
 {
-  HB_UShort      LigatureCount;       /* number of Ligature tables */
   HB_Ligature*  Ligature;            /* array of Ligature tables  */
+  HB_UShort      LigatureCount;       /* number of Ligature tables */
 };
 
 typedef struct HB_LigatureSet_  HB_LigatureSet;
@@ -146,10 +146,10 @@ typedef struct HB_LigatureSet_  HB_LigatureSet;
 
 struct  HB_LigatureSubst_
 {
-  HB_UShort         SubstFormat;      /* always 1                     */
+  HB_LigatureSet*  LigatureSet;      /* array of LigatureSet tables  */
   HB_Coverage      Coverage;         /* Coverage table               */
+  HB_UShort         SubstFormat;      /* always 1                     */
   HB_UShort         LigatureSetCount; /* number of LigatureSet tables */
-  HB_LigatureSet*  LigatureSet;      /* array of LigatureSet tables  */
 };
 
 typedef struct HB_LigatureSubst_  HB_LigatureSubst;
@@ -171,13 +171,13 @@ typedef struct HB_SubstLookupRecord_  HB_SubstLookupRecord;
 
 struct  HB_SubRule_
 {
-  HB_UShort               GlyphCount; /* total number of input glyphs */
-  HB_UShort               SubstCount; /* number of SubstLookupRecord
-					 tables                       */
   HB_UShort*              Input;      /* array of input glyph IDs     */
   HB_SubstLookupRecord*  SubstLookupRecord;
 				      /* array of SubstLookupRecord
 					 tables                       */
+  HB_UShort               GlyphCount; /* total number of input glyphs */
+  HB_UShort               SubstCount; /* number of SubstLookupRecord
+					 tables                       */
 };
 
 typedef struct HB_SubRule_  HB_SubRule;
@@ -185,8 +185,8 @@ typedef struct HB_SubRule_  HB_SubRule;
 
 struct  HB_SubRuleSet_
 {
-  HB_UShort     SubRuleCount;         /* number of SubRule tables */
   HB_SubRule*  SubRule;              /* array of SubRule tables  */
+  HB_UShort     SubRuleCount;         /* number of SubRule tables */
 };
 
 typedef struct HB_SubRuleSet_  HB_SubRuleSet;
@@ -194,9 +194,9 @@ typedef struct HB_SubRuleSet_  HB_SubRuleSet;
 
 struct  HB_ContextSubstFormat1_
 {
+  HB_SubRuleSet*  SubRuleSet;        /* array of SubRuleSet tables  */
   HB_Coverage     Coverage;          /* Coverage table              */
   HB_UShort        SubRuleSetCount;   /* number of SubRuleSet tables */
-  HB_SubRuleSet*  SubRuleSet;        /* array of SubRuleSet tables  */
 };
 
 typedef struct HB_ContextSubstFormat1_  HB_ContextSubstFormat1;
@@ -204,13 +204,13 @@ typedef struct HB_ContextSubstFormat1_  HB_ContextSubstFormat1;
 
 struct  HB_SubClassRule_
 {
-  HB_UShort               GlyphCount; /* total number of context classes */
-  HB_UShort               SubstCount; /* number of SubstLookupRecord
-					 tables                          */
   HB_UShort*              Class;      /* array of classes                */
   HB_SubstLookupRecord*  SubstLookupRecord;
 				      /* array of SubstLookupRecord
 					 tables                          */
+  HB_UShort               GlyphCount; /* total number of context classes */
+  HB_UShort               SubstCount; /* number of SubstLookupRecord
+					 tables                          */
 };
 
 typedef struct HB_SubClassRule_  HB_SubClassRule;
@@ -218,9 +218,9 @@ typedef struct HB_SubClassRule_  HB_SubClassRule;
 
 struct  HB_SubClassSet_
 {
+  HB_SubClassRule*  SubClassRule;    /* array of SubClassRule tables  */
   HB_UShort          SubClassRuleCount;
 				      /* number of SubClassRule tables */
-  HB_SubClassRule*  SubClassRule;    /* array of SubClassRule tables  */
 };
 
 typedef struct HB_SubClassSet_  HB_SubClassSet;
@@ -232,13 +232,13 @@ typedef struct HB_SubClassSet_  HB_SubClassSet;
 
 struct  HB_ContextSubstFormat2_
 {
-  HB_UShort            MaxContextLength;
-				      /* maximal context length       */
+  HB_SubClassSet*     SubClassSet;   /* array of SubClassSet tables  */
   HB_Coverage         Coverage;      /* Coverage table               */
   HB_ClassDefinition  ClassDef;      /* ClassDef table               */
   HB_UShort            SubClassSetCount;
 				      /* number of SubClassSet tables */
-  HB_SubClassSet*     SubClassSet;   /* array of SubClassSet tables  */
+  HB_UShort            MaxContextLength;
+				      /* maximal context length       */
 };
 
 typedef struct HB_ContextSubstFormat2_  HB_ContextSubstFormat2;
@@ -246,11 +246,11 @@ typedef struct HB_ContextSubstFormat2_  HB_ContextSubstFormat2;
 
 struct  HB_ContextSubstFormat3_
 {
-  HB_UShort               GlyphCount; /* number of input glyphs        */
-  HB_UShort               SubstCount; /* number of SubstLookupRecords  */
   HB_Coverage*           Coverage;   /* array of Coverage tables      */
   HB_SubstLookupRecord*  SubstLookupRecord;
 				      /* array of substitution lookups */
+  HB_UShort               GlyphCount; /* number of input glyphs        */
+  HB_UShort               SubstCount; /* number of SubstLookupRecords  */
 };
 
 typedef struct HB_ContextSubstFormat3_  HB_ContextSubstFormat3;
@@ -258,14 +258,14 @@ typedef struct HB_ContextSubstFormat3_  HB_ContextSubstFormat3;
 
 struct  HB_ContextSubst_
 {
-  HB_Byte  SubstFormat;               /* 1, 2, or 3 */
-
   union
   {
     HB_ContextSubstFormat1  csf1;
     HB_ContextSubstFormat2  csf2;
     HB_ContextSubstFormat3  csf3;
   } csf;
+
+  HB_Byte  SubstFormat;               /* 1, 2, or 3 */
 };
 
 typedef struct HB_ContextSubst_  HB_ContextSubst;
@@ -275,18 +275,18 @@ typedef struct HB_ContextSubst_  HB_ContextSubst;
 
 struct  HB_ChainSubRule_
 {
+  HB_UShort*              Backtrack;  /* array of backtrack glyph IDs     */
+  HB_UShort*              Input;      /* array of input glyph IDs         */
+  HB_UShort*              Lookahead;  /* array of lookahead glyph IDs     */
+  HB_SubstLookupRecord*  SubstLookupRecord;
+				      /* array of SubstLookupRecords      */
   HB_UShort               BacktrackGlyphCount;
 				      /* total number of backtrack glyphs */
-  HB_UShort*              Backtrack;  /* array of backtrack glyph IDs     */
   HB_UShort               InputGlyphCount;
 				      /* total number of input glyphs     */
-  HB_UShort*              Input;      /* array of input glyph IDs         */
   HB_UShort               LookaheadGlyphCount;
 				      /* total number of lookahead glyphs */
-  HB_UShort*              Lookahead;  /* array of lookahead glyph IDs     */
   HB_UShort               SubstCount; /* number of SubstLookupRecords     */
-  HB_SubstLookupRecord*  SubstLookupRecord;
-				      /* array of SubstLookupRecords      */
 };
 
 typedef struct HB_ChainSubRule_  HB_ChainSubRule;
@@ -294,9 +294,9 @@ typedef struct HB_ChainSubRule_  HB_ChainSubRule;
 
 struct  HB_ChainSubRuleSet_
 {
+  HB_ChainSubRule*  ChainSubRule;    /* array of ChainSubRule tables  */
   HB_UShort          ChainSubRuleCount;
 				      /* number of ChainSubRule tables */
-  HB_ChainSubRule*  ChainSubRule;    /* array of ChainSubRule tables  */
 };
 
 typedef struct HB_ChainSubRuleSet_  HB_ChainSubRuleSet;
@@ -304,11 +304,11 @@ typedef struct HB_ChainSubRuleSet_  HB_ChainSubRuleSet;
 
 struct  HB_ChainContextSubstFormat1_
 {
+  HB_ChainSubRuleSet*  ChainSubRuleSet;
+				      /* array of ChainSubRuleSet tables  */
   HB_Coverage          Coverage;     /* Coverage table                   */
   HB_UShort             ChainSubRuleSetCount;
 				      /* number of ChainSubRuleSet tables */
-  HB_ChainSubRuleSet*  ChainSubRuleSet;
-				      /* array of ChainSubRuleSet tables  */
 };
 
 typedef struct HB_ChainContextSubstFormat1_  HB_ChainContextSubstFormat1;
@@ -316,20 +316,20 @@ typedef struct HB_ChainContextSubstFormat1_  HB_ChainContextSubstFormat1;
 
 struct  HB_ChainSubClassRule_
 {
+  HB_UShort*              Backtrack;  /* array of backtrack classes      */
+  HB_UShort*              Input;      /* array of context classes        */
+  HB_UShort*              Lookahead;  /* array of lookahead classes      */
+  HB_SubstLookupRecord*  SubstLookupRecord;
+				      /* array of substitution lookups   */
   HB_UShort               BacktrackGlyphCount;
 				      /* total number of backtrack
 					 classes                         */
-  HB_UShort*              Backtrack;  /* array of backtrack classes      */
   HB_UShort               InputGlyphCount;
 				      /* total number of context classes */
-  HB_UShort*              Input;      /* array of context classes        */
   HB_UShort               LookaheadGlyphCount;
 				      /* total number of lookahead
 					 classes                         */
-  HB_UShort*              Lookahead;  /* array of lookahead classes      */
   HB_UShort               SubstCount; /* number of SubstLookupRecords    */
-  HB_SubstLookupRecord*  SubstLookupRecord;
-				      /* array of substitution lookups   */
 };
 
 typedef struct HB_ChainSubClassRule_  HB_ChainSubClassRule;
@@ -337,12 +337,12 @@ typedef struct HB_ChainSubClassRule_  HB_ChainSubClassRule;
 
 struct  HB_ChainSubClassSet_
 {
-  HB_UShort               ChainSubClassRuleCount;
-				      /* number of ChainSubClassRule
-					 tables                      */
   HB_ChainSubClassRule*  ChainSubClassRule;
 				      /* array of ChainSubClassRule
 					 tables                      */
+  HB_UShort               ChainSubClassRuleCount;
+				      /* number of ChainSubClassRule
+					 tables                      */
 };
 
 typedef struct HB_ChainSubClassSet_  HB_ChainSubClassSet;
@@ -354,27 +354,27 @@ typedef struct HB_ChainSubClassSet_  HB_ChainSubClassSet;
 
 struct  HB_ChainContextSubstFormat2_
 {
+  HB_ChainSubClassSet*  ChainSubClassSet;
+				      /* array of ChainSubClassSet
+					 tables                     */
   HB_Coverage           Coverage;    /* Coverage table             */
 
-  HB_UShort              MaxBacktrackLength;
-				      /* maximal backtrack length   */
   HB_ClassDefinition    BacktrackClassDef;
 				      /* BacktrackClassDef table    */
-  HB_UShort              MaxInputLength;
-				      /* maximal input length       */
   HB_ClassDefinition    InputClassDef;
 				      /* InputClassDef table        */
-  HB_UShort              MaxLookaheadLength;
-				      /* maximal lookahead length   */
   HB_ClassDefinition    LookaheadClassDef;
 				      /* LookaheadClassDef table    */
 
   HB_UShort              ChainSubClassSetCount;
 				      /* number of ChainSubClassSet
 					 tables                     */
-  HB_ChainSubClassSet*  ChainSubClassSet;
-				      /* array of ChainSubClassSet
-					 tables                     */
+  HB_UShort              MaxBacktrackLength;
+				      /* maximal backtrack length   */
+  HB_UShort              MaxLookaheadLength;
+				      /* maximal lookahead length   */
+  HB_UShort              MaxInputLength;
+				      /* maximal input length       */
 };
 
 typedef struct HB_ChainContextSubstFormat2_  HB_ChainContextSubstFormat2;
@@ -382,24 +382,24 @@ typedef struct HB_ChainContextSubstFormat2_  HB_ChainContextSubstFormat2;
 
 struct  HB_ChainContextSubstFormat3_
 {
-  HB_UShort               BacktrackGlyphCount;
-				      /* number of backtrack glyphs    */
   HB_Coverage*           BacktrackCoverage;
 				      /* array of backtrack Coverage
 					 tables                        */
-  HB_UShort               InputGlyphCount;
-				      /* number of input glyphs        */
   HB_Coverage*           InputCoverage;
 				      /* array of input coverage
 					 tables                        */
-  HB_UShort               LookaheadGlyphCount;
-				      /* number of lookahead glyphs    */
   HB_Coverage*           LookaheadCoverage;
 				      /* array of lookahead coverage
 					 tables                        */
-  HB_UShort               SubstCount; /* number of SubstLookupRecords  */
   HB_SubstLookupRecord*  SubstLookupRecord;
 				      /* array of substitution lookups */
+  HB_UShort               BacktrackGlyphCount;
+				      /* number of backtrack glyphs    */
+  HB_UShort               InputGlyphCount;
+				      /* number of input glyphs        */
+  HB_UShort               LookaheadGlyphCount;
+				      /* number of lookahead glyphs    */
+  HB_UShort               SubstCount; /* number of SubstLookupRecords  */
 };
 
 typedef struct HB_ChainContextSubstFormat3_  HB_ChainContextSubstFormat3;
@@ -407,14 +407,14 @@ typedef struct HB_ChainContextSubstFormat3_  HB_ChainContextSubstFormat3;
 
 struct  HB_ChainContextSubst_
 {
-  HB_Byte  SubstFormat;               /* 1, 2, or 3 */
-
   union
   {
     HB_ChainContextSubstFormat1  ccsf1;
     HB_ChainContextSubstFormat2  ccsf2;
     HB_ChainContextSubstFormat3  ccsf3;
   } ccsf;
+
+  HB_Byte  SubstFormat;               /* 1, 2, or 3 */
 };
 
 typedef struct HB_ChainContextSubst_  HB_ChainContextSubst;
@@ -424,9 +424,9 @@ typedef struct HB_ChainContextSubst_  HB_ChainContextSubst;
 /* LookupType 7 */
 struct HB_ExtensionSubst_
 {
+  HB_GSUB_SubTable *subtable;         /* referenced subtable */
   HB_UShort      SubstFormat;         /* always 1 */
   HB_UShort      LookuptType;         /* lookup-type of referenced subtable */
-  HB_GSUB_SubTable *subtable;         /* referenced subtable */
 };
 
 typedef struct HB_ExtensionSubst_  HB_ExtensionSubst;
@@ -436,16 +436,16 @@ typedef struct HB_ExtensionSubst_  HB_ExtensionSubst;
 /* LookupType 8 */
 struct HB_ReverseChainContextSubst_
 {
-  HB_UShort      SubstFormat;         /* always 1 */
-  HB_Coverage   Coverage;	        /* coverage table for input glyphs */
-  HB_UShort      BacktrackGlyphCount; /* number of backtrack glyphs      */
+  HB_Coverage*  LookaheadCoverage;   /* array of lookahead Coverage
+					 tables                          */
+  HB_UShort*     Substitute;          /* array of substitute Glyph ID    */
   HB_Coverage*  BacktrackCoverage;   /* array of backtrack Coverage
 					 tables                          */
+  HB_Coverage   Coverage;	        /* coverage table for input glyphs */
+  HB_UShort      SubstFormat;         /* always 1 */
+  HB_UShort      BacktrackGlyphCount; /* number of backtrack glyphs      */
   HB_UShort      LookaheadGlyphCount; /* number of lookahead glyphs      */
-  HB_Coverage*  LookaheadCoverage;   /* array of lookahead Coverage
-					 tables                          */
   HB_UShort      GlyphCount;          /* number of Glyph IDs             */
-  HB_UShort*     Substitute;          /* array of substitute Glyph ID    */
 };
 
 typedef struct HB_ReverseChainContextSubst_  HB_ReverseChainContextSubst;
diff --git a/src/harfbuzz-gsub.h b/src/harfbuzz-gsub.h
index 5b989ee..b00df44 100644
--- a/src/harfbuzz-gsub.h
+++ b/src/harfbuzz-gsub.h
@@ -64,6 +64,14 @@ typedef HB_UShort  (*HB_AltFunction)(HB_UInt    pos,
 
 struct  HB_GSUBHeader_
 {
+  HB_GDEFHeader*  gdef;
+
+  /* the next two fields are used for an alternate substitution callback
+     function to select the proper alternate glyph.                      */
+
+  void*            data;
+  HB_AltFunction  altfunc;
+
   HB_UInt         offset;
 
   HB_16Dot16         Version;
@@ -71,14 +79,6 @@ struct  HB_GSUBHeader_
   HB_ScriptList   ScriptList;
   HB_FeatureList  FeatureList;
   HB_LookupList   LookupList;
-
-  HB_GDEFHeader*  gdef;
-
-  /* the next two fields are used for an alternate substitution callback
-     function to select the proper alternate glyph.                      */
-
-  HB_AltFunction  altfunc;
-  void*            data;
 };
 
 typedef struct HB_GSUBHeader_   HB_GSUBHeader;
diff --git a/src/harfbuzz-open.h b/src/harfbuzz-open.h
index 752f17d..4ba6cf5 100644
--- a/src/harfbuzz-open.h
+++ b/src/harfbuzz-open.h
@@ -46,10 +46,10 @@ HB_BEGIN_HEADER
 
 struct  HB_LangSys_
 {
+  HB_UShort*  FeatureIndex;           /* array of Feature indices  */
   HB_UShort   LookupOrderOffset;      /* always 0 for TT Open 1.0  */
   HB_UShort   ReqFeatureIndex;        /* required FeatureIndex     */
   HB_UShort   FeatureCount;           /* number of Feature indices */
-  HB_UShort*  FeatureIndex;           /* array of Feature indices  */
 };
 
 typedef struct HB_LangSys_  HB_LangSys;
@@ -57,8 +57,8 @@ typedef struct HB_LangSys_  HB_LangSys;
 
 struct  HB_LangSysRecord_
 {
-  HB_UInt     LangSysTag;            /* LangSysTag identifier */
   HB_LangSys  LangSys;               /* LangSys table         */
+  HB_UInt     LangSysTag;            /* LangSysTag identifier */
 };
 
 typedef struct HB_LangSysRecord_  HB_LangSysRecord;
@@ -66,9 +66,9 @@ typedef struct HB_LangSysRecord_  HB_LangSysRecord;
 
 struct  HB_ScriptTable_
 {
+  HB_LangSysRecord*  LangSysRecord;  /* array of LangSysRecords  */
   HB_LangSys         DefaultLangSys; /* DefaultLangSys table     */
   HB_UShort           LangSysCount;   /* number of LangSysRecords */
-  HB_LangSysRecord*  LangSysRecord;  /* array of LangSysRecords  */
 };
 
 typedef struct HB_ScriptTable_  HB_ScriptTable;
@@ -85,8 +85,8 @@ typedef struct HB_ScriptRecord_  HB_ScriptRecord;
 
 struct  HB_ScriptList_
 {
-  HB_UShort          ScriptCount;     /* number of ScriptRecords */
   HB_ScriptRecord*  ScriptRecord;    /* array of ScriptRecords  */
+  HB_UShort          ScriptCount;     /* number of ScriptRecords */
 };
 
 typedef struct HB_ScriptList_  HB_ScriptList;
@@ -96,9 +96,9 @@ typedef struct HB_ScriptList_  HB_ScriptList;
 
 struct HB_Feature_
 {
+  HB_UShort*  LookupListIndex;        /* array of LookupList indices  */
   HB_UShort   FeatureParams;          /* always 0 for TT Open 1.0     */
   HB_UShort   LookupListCount;        /* number of LookupList indices */
-  HB_UShort*  LookupListIndex;        /* array of LookupList indices  */
 };
 
 typedef struct HB_Feature_  HB_Feature;
@@ -115,9 +115,9 @@ typedef struct HB_FeatureRecord_  HB_FeatureRecord;
 
 struct  HB_FeatureList_
 {
-  HB_UShort           FeatureCount;   /* number of FeatureRecords */
-  HB_FeatureRecord*  FeatureRecord;  /* array of FeatureRecords  */
   HB_UShort*		ApplyOrder;	/* order to apply features */
+  HB_FeatureRecord*  FeatureRecord;  /* array of FeatureRecords  */
+  HB_UShort           FeatureCount;   /* number of FeatureRecords */
   HB_UShort		ApplyCount;	/* number of elements in ApplyOrder */
 };
 
@@ -131,10 +131,10 @@ typedef struct HB_SubTable_  HB_SubTable;
 
 struct  HB_Lookup_
 {
+  HB_SubTable*  SubTable;            /* array of SubTables  */
   HB_UShort      LookupType;          /* Lookup type         */
   HB_UShort      LookupFlag;          /* Lookup qualifiers   */
   HB_UShort      SubTableCount;       /* number of SubTables */
-  HB_SubTable*  SubTable;            /* array of SubTables  */
 };
 
 typedef struct HB_Lookup_  HB_Lookup;
@@ -148,9 +148,9 @@ typedef struct HB_Lookup_  HB_Lookup;
 
 struct  HB_LookupList_
 {
-  HB_UShort    LookupCount;           /* number of Lookups       */
   HB_Lookup*  Lookup;                /* array of Lookup records */
   HB_UInt*     Properties;            /* array of flags          */
+  HB_UShort    LookupCount;           /* number of Lookups       */
 };
 
 typedef struct HB_LookupList_  HB_LookupList;
@@ -171,8 +171,8 @@ typedef struct HB_LookupList_  HB_LookupList;
 
 struct  HB_CoverageFormat1_
 {
-  HB_UShort   GlyphCount;             /* number of glyphs in GlyphArray */
   HB_UShort*  GlyphArray;             /* array of glyph IDs             */
+  HB_UShort   GlyphCount;             /* number of glyphs in GlyphArray */
 };
 
 typedef struct HB_CoverageFormat1_  HB_CoverageFormat1;
@@ -191,8 +191,8 @@ typedef struct HB_RangeRecord_  HB_RangeRecord;
 
 struct  HB_CoverageFormat2_
 {
-  HB_UShort         RangeCount;       /* number of RangeRecords */
   HB_RangeRecord*  RangeRecord;      /* array of RangeRecords  */
+  HB_UShort         RangeCount;       /* number of RangeRecords */
 };
 
 typedef struct HB_CoverageFormat2_  HB_CoverageFormat2;
@@ -214,10 +214,10 @@ typedef struct HB_Coverage_  HB_Coverage;
 
 struct  HB_ClassDefFormat1_
 {
+  HB_UShort*  ClassValueArray;        /* array of class values       */
   HB_UShort   StartGlyph;             /* first glyph ID of the
 					 ClassValueArray             */
   HB_UShort   GlyphCount;             /* size of the ClassValueArray */
-  HB_UShort*  ClassValueArray;        /* array of class values       */
 };
 
 typedef struct HB_ClassDefFormat1_  HB_ClassDefFormat1;
@@ -235,10 +235,10 @@ typedef struct HB_ClassRangeRecord_  HB_ClassRangeRecord;
 
 struct  HB_ClassDefFormat2_
 {
-  HB_UShort              ClassRangeCount;
-				      /* number of ClassRangeRecords */
   HB_ClassRangeRecord*  ClassRangeRecord;
 				      /* array of ClassRangeRecords  */
+  HB_UShort              ClassRangeCount;
+				      /* number of ClassRangeRecords */
 };
 
 typedef struct HB_ClassDefFormat2_  HB_ClassDefFormat2;
@@ -246,15 +246,14 @@ typedef struct HB_ClassDefFormat2_  HB_ClassDefFormat2;
 
 struct  HB_ClassDefinition_
 {
-  HB_Bool    loaded;
-
-  HB_Byte    ClassFormat;             /* 1 or 2                      */
-
   union
   {
     HB_ClassDefFormat1  cd1;
     HB_ClassDefFormat2  cd2;
   } cd;
+
+  HB_Byte    ClassFormat;             /* 1 or 2                      */
+  HB_Bool    loaded;
 };
 
 typedef struct HB_ClassDefinition_  HB_ClassDefinition;
@@ -262,11 +261,11 @@ typedef struct HB_ClassDefinition_  HB_ClassDefinition;
 
 struct HB_Device_
 {
+  HB_UShort*  DeltaValue;             /* array of compressed data      */
   HB_UShort   StartSize;              /* smallest size to correct      */
   HB_UShort   EndSize;                /* largest size to correct       */
   HB_Byte     DeltaFormat;            /* DeltaValue array data format:
 					 1, 2, or 3                    */
-  HB_UShort*  DeltaValue;             /* array of compressed data      */
 };
 
 typedef struct HB_Device_  HB_Device;
diff --git a/src/harfbuzz-stream.h b/src/harfbuzz-stream.h
index 0670804..a155cc2 100644
--- a/src/harfbuzz-stream.h
+++ b/src/harfbuzz-stream.h
@@ -37,10 +37,9 @@ HB_BEGIN_HEADER
 typedef struct HB_StreamRec_
 {
     HB_Byte*       base;
+    HB_Byte*       cursor;
     HB_UInt        size;
     HB_UInt        pos;
-    
-    HB_Byte*       cursor;
 } HB_StreamRec;
 
 #ifdef HB_USE_PACKED_STRUCTS