1 files changed, 136 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/java/util/regex/RETokenLookBehind.java b/gcc-4.4.3/libjava/classpath/gnu/java/util/regex/RETokenLookBehind.java
new file mode 100644
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+++ b/gcc-4.4.3/libjava/classpath/gnu/java/util/regex/RETokenLookBehind.java
@@ -0,0 +1,136 @@
+/* gnu/regexp/RETokenLookBehind.java
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.java.util.regex;
+
+import gnu.java.lang.CPStringBuilder;
+
+/**
+ * @author Ito Kazumitsu
+ */
+final class RETokenLookBehind extends REToken
+{
+  REToken re;
+  boolean negative;
+
+    RETokenLookBehind (REToken re, boolean negative) throws REException
+  {
+    super (0);
+    this.re = re;
+    this.negative = negative;
+  }
+
+  int getMaximumLength ()
+  {
+    return 0;
+  }
+
+  REMatch matchThis (CharIndexed input, REMatch mymatch)
+  {
+    int max = re.getMaximumLength ();
+    CharIndexed behind = input.lookBehind (mymatch.index, max);
+    REMatch trymatch = (REMatch) mymatch.clone ();
+    int diff = behind.length () - input.length ();
+    int curIndex = trymatch.index + diff;
+    trymatch.index = 0;
+    trymatch.offset = 0;
+    RETokenMatchHereOnly stopper = new RETokenMatchHereOnly (curIndex);
+    REToken re1 = (REToken) re.clone ();
+    re1.chain (stopper);
+    if (re1.match (behind, trymatch))
+      {
+	if (negative)
+	  return null;
+	for (int i = 0; i < trymatch.start.length; i++)
+	  {
+	    if (trymatch.start[i] != -1 && trymatch.end[i] != -1)
+	      {
+		trymatch.start[i] -= diff;
+		if (trymatch.start[i] < 0)
+		  trymatch.start[i] -= 1;
+		trymatch.end[i] -= diff;
+		if (trymatch.end[i] < 0)
+		  trymatch.end[i] -= 1;
+	      }
+	  }
+	trymatch.index = mymatch.index;
+	trymatch.offset = mymatch.offset;
+	return trymatch;
+      }
+    else
+      {
+	if (negative)
+	  return mymatch;
+	return null;
+      }
+  }
+
+  void dump (CPStringBuilder os)
+  {
+    os.append ("(?<");
+    os.append (negative ? '!' : '=');
+    re.dumpAll (os);
+    os.append (')');
+  }
+
+  private static class RETokenMatchHereOnly extends REToken
+  {
+
+    int getMaximumLength ()
+    {
+      return 0;
+    }
+
+    private int index;
+
+    RETokenMatchHereOnly (int index)
+    {
+      super (0);
+      this.index = index;
+    }
+
+    REMatch matchThis (CharIndexed input, REMatch mymatch)
+    {
+      return (index == mymatch.index ? mymatch : null);
+    }
+
+    void dump (CPStringBuilder os)
+    {
+    }
+
+  }
+}