From e7c6079af8cb566c908e4a5d2ddf57e58c62116a Mon Sep 17 00:00:00 2001
From: handa <handa>
Date: Mon, 22 Dec 2008 05:53:15 +0000
Subject: [PATCH] (check_cmap_uvs): New function.  Not yet completed. (UVS_P):
 New macro. (OTF_drive_cmap): Check UVS (Unicode Variation
 Sequences).

---
 src/otfdrive.c |   23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/src/otfdrive.c b/src/otfdrive.c
index a32f6a4..7d0824d 100644
--- a/src/otfdrive.c
+++ b/src/otfdrive.c
@@ -1336,10 +1336,31 @@ lookup_encoding_12 (OTF_EncodingSubtable12 *sub12, OTF_GlyphString *gstring)
   return 0;
 }
 
+static void
+check_cmap_uvs (OTF_cmap *cmap, OTF_GlyphString *gstring, int idx)
+{  
+  OTF_EncodingSubtable14 *sub14;
+  int c1 = gstring->glyphs[idx - 1].c;
+  int c2 = gstring->glyphs[idx].c;
+  int i;
+
+  gstring->glyphs[idx].glyph_id = 0;
+  for (i = 0; i < cmap->numTables; i++)
+    if (cmap->EncodingRecord[i].subtable.format == 14)
+      break;
+  if (i == cmap->numTables)
+    return;
+  sub14 = cmap->EncodingRecord[i].subtable.f.f14;
+  /*  */
+}
+
 
 
 /* API */
 
+#define UVS_P(C)	\
+  (((C) >= 0xFE00 && (C) <= 0xFE0F) || ((C) >= 0xE0100 && (C) <= 0xE01EF))
+
 int
 OTF_drive_cmap (OTF *otf, OTF_GlyphString *gstring)
 {
@@ -1357,6 +1378,8 @@ OTF_drive_cmap (OTF *otf, OTF_GlyphString *gstring)
 	int c = gstring->glyphs[i].c;
 	if (c < 32 || ! cmap->unicode_table)
 	  gstring->glyphs[i].glyph_id = 0;
+	else if (UVS_P (c) && i > 0)
+	  check_cmap_uvs (cmap, gstring, i);
 	else
 	  gstring->glyphs[i].glyph_id = cmap->unicode_table[c];
       }
-- 
1.7.10.4