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/RETokenWordBoundary.java   | 141 +++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 libjava/classpath/gnu/java/util/regex/RETokenWordBoundary.java

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

diff --git a/libjava/classpath/gnu/java/util/regex/RETokenWordBoundary.java b/libjava/classpath/gnu/java/util/regex/RETokenWordBoundary.java
new file mode 100644
index 000000000..04fd8391f
--- /dev/null
+++ b/libjava/classpath/gnu/java/util/regex/RETokenWordBoundary.java
@@ -0,0 +1,141 @@
+/* gnu/regexp/RETokenWordBoundary.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;
+
+/**
+ * Represents a combination lookahead/lookbehind for POSIX [:alnum:].
+ */
+final class RETokenWordBoundary extends REToken
+{
+  private boolean negated;
+  private int where;
+  static final int BEGIN = 1;
+  static final int END = 2;
+
+    RETokenWordBoundary (int subIndex, int where, boolean negated)
+  {
+    super (subIndex);
+    this.where = where;
+    this.negated = negated;
+  }
+
+  int getMaximumLength ()
+  {
+    return 0;
+  }
+
+
+  REMatch matchThis (CharIndexed input, REMatch mymatch)
+  {
+    // Word boundary means input[index-1] was a word character
+    // and input[index] is not, or input[index] is a word character
+    // and input[index-1] was not
+    //  In the string "one two three", these positions match:
+    //  |o|n|e| |t|w|o| |t|h|r|e|e|
+    //  ^     ^ ^     ^ ^         ^
+    boolean after = false;      // is current character a letter or digit?
+    boolean before = false;     // is previous character a letter or digit?
+    char ch;
+
+    // TODO: Also check REG_ANCHORINDEX vs. anchor
+    if (((mymatch.eflags & RE.REG_ANCHORINDEX) != RE.REG_ANCHORINDEX)
+        || (mymatch.offset + mymatch.index > mymatch.anchor))
+      {
+        if ((ch =
+             input.charAt (mymatch.index - 1)) != CharIndexed.OUT_OF_BOUNDS)
+          {
+            before = Character.isLetterOrDigit (ch) || (ch == '_');
+          }
+      }
+
+    if ((ch = input.charAt (mymatch.index)) != CharIndexed.OUT_OF_BOUNDS)
+      {
+        after = Character.isLetterOrDigit (ch) || (ch == '_');
+      }
+
+    // if (before) and (!after), we're at end (\>)
+    // if (after) and (!before), we're at beginning (\<)
+    boolean doNext = false;
+
+    if ((where & BEGIN) == BEGIN)
+      {
+        doNext = after && !before;
+      }
+    if ((where & END) == END)
+      {
+        doNext ^= before && !after;
+      }
+
+    if (negated)
+      doNext = !doNext;
+
+    return (doNext ? mymatch : null);
+  }
+
+  boolean returnsFixedLengthMatches ()
+  {
+    return true;
+  }
+
+  int findFixedLengthMatches (CharIndexed input, REMatch mymatch, int max)
+  {
+    if (matchThis (input, mymatch) != null)
+      return max;
+    else
+      return 0;
+  }
+
+  void dump (CPStringBuilder os)
+  {
+    if (where == (BEGIN | END))
+      {
+        os.append (negated ? "\\B" : "\\b");
+      }
+    else if (where == BEGIN)
+      {
+        os.append ("\\<");
+      }
+    else
+      {
+        os.append ("\\>");
+      }
+  }
+}
-- 
cgit v1.2.3