--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/native/sun/font/layout/AlternateSubstSubtables.cpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,66 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+/*
+ *
+ * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
+ *
+ */
+
+#include "LETypes.h"
+#include "LEGlyphFilter.h"
+#include "OpenTypeTables.h"
+#include "GlyphSubstitutionTables.h"
+#include "AlternateSubstSubtables.h"
+#include "GlyphIterator.h"
+#include "LESwaps.h"
+
+le_uint32 AlternateSubstitutionSubtable::process(GlyphIterator *glyphIterator, const LEGlyphFilter *filter) const
+{
+    // NOTE: For now, we'll just pick the first alternative...
+    LEGlyphID glyph = glyphIterator->getCurrGlyphID();
+    le_int32 coverageIndex = getGlyphCoverage(glyph);
+
+    if (coverageIndex >= 0) {
+        le_uint16 altSetCount = SWAPW(alternateSetCount);
+
+        if (coverageIndex < altSetCount) {
+            Offset alternateSetTableOffset = SWAPW(alternateSetTableOffsetArray[coverageIndex]);
+            const AlternateSetTable *alternateSetTable =
+                (const AlternateSetTable *) ((char *) this + alternateSetTableOffset);
+            TTGlyphID alternate = SWAPW(alternateSetTable->alternateArray[0]);
+
+            if (filter == NULL || filter->accept(LE_SET_GLYPH(glyph, alternate))) {
+                glyphIterator->setCurrGlyphID(SWAPW(alternateSetTable->alternateArray[0]));
+            }
+
+            return 1;
+        }
+
+        // XXXX If we get here, the table's mal-formed...
+    }
+
+    return 0;
+}