From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 .../gnu/java/util/regex/RETokenLookBehind.java     | 136 +++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 libjava/classpath/gnu/java/util/regex/RETokenLookBehind.java

(limited to 'libjava/classpath/gnu/java/util/regex/RETokenLookBehind.java')

diff --git a/libjava/classpath/gnu/java/util/regex/RETokenLookBehind.java b/libjava/classpath/gnu/java/util/regex/RETokenLookBehind.java
new file mode 100644
index 000000000..c85e37f69
--- /dev/null
+++ b/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)
+    {
+    }
+
+  }
+}
-- 
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