1 files changed, 162 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/java/util/regex/RETokenChar.java b/gcc-4.4.3/libjava/classpath/gnu/java/util/regex/RETokenChar.java
new file mode 100644
index 000000000..babcf3e4e
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+++ b/gcc-4.4.3/libjava/classpath/gnu/java/util/regex/RETokenChar.java
@@ -0,0 +1,162 @@
+/* gnu/regexp/RETokenChar.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;
+
+final class RETokenChar extends REToken
+{
+  private char[] ch;
+  private boolean insens;
+
+    RETokenChar (int subIndex, char c, boolean ins)
+  {
+    super (subIndex);
+    insens = ins;
+    ch = new char[1];
+      ch[0] = c;
+  }
+
+  int getMinimumLength ()
+  {
+    return ch.length;
+  }
+
+  int getMaximumLength ()
+  {
+    return ch.length;
+  }
+
+  REMatch matchThis (CharIndexed input, REMatch mymatch)
+  {
+    if (matchOneString (input, mymatch.index))
+      {
+	mymatch.index += matchedLength;
+	return mymatch;
+      }
+    // java.util.regex.Matcher#hitEnd() requires that the length of
+    // partial match be counted.
+    mymatch.index += matchedLength;
+    input.setHitEnd (mymatch);
+    return null;
+  }
+
+  private int matchedLength;
+  private boolean matchOneString (CharIndexed input, int index)
+  {
+    matchedLength = 0;
+    int z = ch.length;
+    char c;
+    for (int i = 0; i < z; i++)
+      {
+	c = input.charAt (index + i);
+	if (!charEquals (c, ch[i]))
+	  {
+	    return false;
+	  }
+	++matchedLength;
+      }
+    return true;
+  }
+
+  private boolean charEquals (char c1, char c2)
+  {
+    if (c1 == c2)
+      return true;
+    if (!insens)
+      return false;
+    if (toLowerCase (c1, unicodeAware) == c2)
+      return true;
+    if (toUpperCase (c1, unicodeAware) == c2)
+      return true;
+    return false;
+  }
+
+  boolean returnsFixedLengthMatches ()
+  {
+    return true;
+  }
+
+  int findFixedLengthMatches (CharIndexed input, REMatch mymatch, int max)
+  {
+    int index = mymatch.index;
+    int numRepeats = 0;
+    int z = ch.length;
+    while (true)
+      {
+	if (numRepeats >= max)
+	  break;
+	if (matchOneString (input, index))
+	  {
+	    index += z;
+	    numRepeats++;
+	  }
+	else
+	  break;
+      }
+    return numRepeats;
+  }
+
+  // Overrides REToken.chain() to optimize for strings
+  boolean chain (REToken next)
+  {
+    if (next instanceof RETokenChar && ((RETokenChar) next).insens == insens)
+      {
+	RETokenChar cnext = (RETokenChar) next;
+	int newsize = ch.length + cnext.ch.length;
+
+	char[] chTemp = new char[newsize];
+
+	System.arraycopy (ch, 0, chTemp, 0, ch.length);
+	System.arraycopy (cnext.ch, 0, chTemp, ch.length, cnext.ch.length);
+
+	ch = chTemp;
+	if (cnext.next == null)
+	  return false;
+	return chain (cnext.next);
+      }
+    else
+      return super.chain (next);
+  }
+
+  void dump (CPStringBuilder os)
+  {
+    os.append (ch);
+  }
+}