Cleanup IFX_BidiChar

core/include/fxcrt/fx_ucd.h

Index: core/include/fxcrt/fx_ucd.h
diff --git a/core/include/fxcrt/fx_ucd.h b/core/include/fxcrt/fx_ucd.h
index 7b730bb81af6749441654aa6f8b879820d3de6d2..c9197ecd9bfe35156adb62578301e82f7eeafdd2 100644
--- a/core/include/fxcrt/fx_ucd.h
+++ b/core/include/fxcrt/fx_ucd.h
@@ -50,30 +50,32 @@ enum FX_CHARBREAKPROP {
     FX_CBP_TB = 37,
     FX_CBP_NONE = 36,
 };
-#define FX_BIDICLASSBITS		6
-#define FX_BIDICLASSBITSMASK	(31 << FX_BIDICLASSBITS)
+
+#define FX_BIDICLASSBITS     6
+#define FX_BIDICLASSBITSMASK (31 << FX_BIDICLASSBITS)
 enum FX_BIDICLASS {
-    FX_BIDICLASS_ON		= 0,
-    FX_BIDICLASS_L		= 1,
-    FX_BIDICLASS_R		= 2,
-    FX_BIDICLASS_AN		= 3,
-    FX_BIDICLASS_EN		= 4,
-    FX_BIDICLASS_AL		= 5,
-    FX_BIDICLASS_NSM	= 6,
-    FX_BIDICLASS_CS		= 7,
-    FX_BIDICLASS_ES		= 8,
-    FX_BIDICLASS_ET		= 9,
-    FX_BIDICLASS_BN		= 10,
-    FX_BIDICLASS_S		= 11,
-    FX_BIDICLASS_WS		= 12,
-    FX_BIDICLASS_B		= 13,
-    FX_BIDICLASS_RLO	= 14,
-    FX_BIDICLASS_RLE	= 15,
-    FX_BIDICLASS_LRO	= 16,
-    FX_BIDICLASS_LRE	= 17,
-    FX_BIDICLASS_PDF	= 18,
-    FX_BIDICLASS_N		= FX_BIDICLASS_ON,
+    FX_BIDICLASS_ON  = 0,   // Other Neutral
+    FX_BIDICLASS_L   = 1,   // Left Letter
+    FX_BIDICLASS_R   = 2,   // Right Letter
+    FX_BIDICLASS_AN  = 3,   // Arabic Number
+    FX_BIDICLASS_EN  = 4,   // European Number
+    FX_BIDICLASS_AL  = 5,   // Arabic Letter
+    FX_BIDICLASS_NSM = 6,   // Non-spacing Mark
+    FX_BIDICLASS_CS  = 7,   // Common Number Separator
+    FX_BIDICLASS_ES  = 8,   // European Separator
+    FX_BIDICLASS_ET  = 9,   // European Number Terminator
+    FX_BIDICLASS_BN  = 10,  // Boundary Neutral
+    FX_BIDICLASS_S   = 11,  // Segment Separator
+    FX_BIDICLASS_WS  = 12,  // Whitespace
+    FX_BIDICLASS_B   = 13,  // Paragraph Separator
+    FX_BIDICLASS_RLO = 14,  // Right-to-Left Override
+    FX_BIDICLASS_RLE = 15,  // Right-to-Left Embedding
+    FX_BIDICLASS_LRO = 16,  // Left-to-Right Override
+    FX_BIDICLASS_LRE = 17,  // Left-to-Right Embedding
+    FX_BIDICLASS_PDF = 18,  // Pop Directional Format
+    FX_BIDICLASS_N = FX_BIDICLASS_ON,
 };
+
 #define FX_CHARTYPEBITS		11
 #define FX_CHARTYPEBITSMASK	(15 << FX_CHARTYPEBITS)
 enum FX_CHARTYPE {