From c1d972acbe314fe0d10091c3c1bdb4ba92a14900 Mon Sep 17 00:00:00 2001
From: handa <handa>
Date: Thu, 26 Feb 2009 05:40:02 +0000
Subject: [PATCH] (glyph_class_table): New variable. (get_class_def_auto): New
 function. (OTF_drive_gdef): If a font doesn't have a GDEF
 table, use get_class_def_auto.

---
 src/otfdrive.c |   69 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)

diff --git a/src/otfdrive.c b/src/otfdrive.c
index 763d847..7a41174 100644
--- a/src/otfdrive.c
+++ b/src/otfdrive.c
@@ -1429,6 +1429,71 @@ check_cmap_uvs (OTF_cmap *cmap, OTF_GlyphString *gstring, int idx)
 
 
 
+/* GDEF */
+/* Table of GlyphClass and MarkAttackClass.
+
+   For the Nth element CHAR, CHAR and the succeeding characters
+   (before CHAR of the next element) has GlyphClass C (= (N % 2) ? 3 : 1).
+
+   This table is generated from the General Category (GC) property of
+   characters defined in the Unicode Character Database.  */
+
+static int glyph_class_table[] =
+  { 0x00000, 0x00300, 0x00370, 0x00483, 0x00487, 0x00488, 0x0048A, 0x00591,
+    0x005BE, 0x005BF, 0x005C0, 0x005C1, 0x005C3, 0x005C4, 0x005C6, 0x005C7,
+    0x005C8, 0x00610, 0x00616, 0x0064B, 0x0065F, 0x00670, 0x00671, 0x006D6,
+    0x006DD, 0x006DE, 0x006E5, 0x006E7, 0x006E9, 0x006EA, 0x006EE, 0x00711,
+    0x00712, 0x00730, 0x0074B, 0x007A6, 0x007B1, 0x007EB, 0x007F4, 0x00901,
+    0x00904, 0x0093C, 0x0093D, 0x0093E, 0x0094E, 0x00951, 0x00955, 0x00962,
+    0x00964, 0x00981, 0x00984, 0x009BC, 0x009BD, 0x009BE, 0x009C5, 0x009C7,
+    0x009CE, 0x009D7, 0x009D8, 0x009E2, 0x009E4, 0x00A01, 0x00A04, 0x00A3C,
+    0x00A3D, 0x00A3E, 0x00A4E, 0x00A70, 0x00A72, 0x00A81, 0x00A84, 0x00ABC,
+    0x00ABD, 0x00ABE, 0x00ACE, 0x00AE2, 0x00AE4, 0x00B01, 0x00B04, 0x00B3C,
+    0x00B3D, 0x00B3E, 0x00B44, 0x00B47, 0x00B58, 0x00B82, 0x00B83, 0x00BBE,
+    0x00BCE, 0x00BD7, 0x00BD8, 0x00C01, 0x00C04, 0x00C3E, 0x00C45, 0x00C46,
+    0x00C57, 0x00C82, 0x00C84, 0x00CBC, 0x00CBD, 0x00CBE, 0x00CC5, 0x00CC6,
+    0x00CCE, 0x00CD5, 0x00CD7, 0x00CE2, 0x00CE4, 0x00D02, 0x00D04, 0x00D3E,
+    0x00D44, 0x00D46, 0x00D4E, 0x00D57, 0x00D58, 0x00D82, 0x00D84, 0x00DCA,
+    0x00DCB, 0x00DCF, 0x00DD7, 0x00DD8, 0x00DF4, 0x00E31, 0x00E32, 0x00E34,
+    0x00E3B, 0x00E47, 0x00E4F, 0x00EB1, 0x00EB2, 0x00EB4, 0x00EBD, 0x00EC8,
+    0x00ECE, 0x00F18, 0x00F1A, 0x00F35, 0x00F36, 0x00F37, 0x00F38, 0x00F39,
+    0x00F3A, 0x00F3E, 0x00F40, 0x00F71, 0x00F85, 0x00F86, 0x00F88, 0x00F90,
+    0x00FBD, 0x00FC6, 0x00FC7, 0x0102C, 0x0103A, 0x01056, 0x0105A, 0x0135F,
+    0x01360, 0x01712, 0x01715, 0x01732, 0x01735, 0x01752, 0x01754, 0x01772,
+    0x01774, 0x017B6, 0x017D4, 0x017DD, 0x017DE, 0x0180B, 0x0180E, 0x018A9,
+    0x018AA, 0x01920, 0x0193C, 0x019B0, 0x019C1, 0x019C8, 0x019CA, 0x01A17,
+    0x01A1C, 0x01B00, 0x01B05, 0x01B34, 0x01B45, 0x01B6B, 0x01B74, 0x01DC0,
+    0x01E00, 0x020D0, 0x020F0, 0x0302A, 0x03030, 0x03099, 0x0309B, 0x0A802,
+    0x0A803, 0x0A806, 0x0A807, 0x0A80B, 0x0A80C, 0x0A823, 0x0A828, 0x0FB1E,
+    0x0FB1F, 0x0FE00, 0x0FE10, 0x0FE20, 0x0FE24, 0x10A01, 0x10A10, 0x10A38,
+    0x10A40, 0x1D165, 0x1D16A, 0x1D16D, 0x1D173, 0x1D17B, 0x1D183, 0x1D185,
+    0x1D18C, 0x1D1AA, 0x1D1AE, 0x1D242, 0x1D245, 0xE0100, 0xE01F0 };
+
+int get_class_def_auto (int c)
+{
+  static int table_size
+    = sizeof glyph_class_table / sizeof glyph_class_table[0];
+  int low, high, mid;
+
+  if (c >= glyph_class_table[table_size - 1])
+    return 0;
+  low = 0;
+  high = table_size - 1;
+  while (1)
+    {
+      mid = (low + high) / 2;
+      if (c < glyph_class_table[mid])
+	high = mid - 1;
+      else if (c >= glyph_class_table[mid + 1])
+	low = mid + 1;
+      else
+	break;
+    }
+  return ((mid % 2) ? 3 : 1);
+}
+
+
+
 /* API */
 
 #define UVS_P(C)	\
@@ -1554,6 +1619,10 @@ OTF_drive_gdef (OTF *otf, OTF_GlyphString *gstring)
       gstring->glyphs[i].GlyphClass
 	= get_class_def (&gdef->glyph_class_def,
 			 gstring->glyphs[i].glyph_id);
+  else
+    for (i = 0; i < gstring->used; i++)
+      gstring->glyphs[i].GlyphClass
+	= get_class_def_auto (gstring->glyphs[i].c);
 
   if (gdef->mark_attach_class_def.offset)
     for (i = 0; i < gstring->used; i++)
-- 
1.7.10.4