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+/* gnu/regexp/RETokenEnd.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 RETokenEnd extends REToken
+{
+ /**
+ * Indicates whether this token should match on a line break.
+ */
+ private String newline;
+ private boolean check_java_line_terminators;
+
+ /**
+ * Indicates whether this token is a real one generated at compile time,
+ * or a fake one temporarily added by RE#getMatchImpl.
+ */
+ private boolean fake = false;
+
+ RETokenEnd (int subIndex, String newline)
+ {
+ super (subIndex);
+ this.newline = newline;
+ this.check_java_line_terminators = false;
+ }
+
+ RETokenEnd (int subIndex, String newline, boolean b)
+ {
+ super (subIndex);
+ this.newline = newline;
+ this.check_java_line_terminators = b;
+ }
+
+ void setFake (boolean fake)
+ {
+ this.fake = fake;
+ }
+
+ int getMaximumLength ()
+ {
+ return 0;
+ }
+
+ boolean match (CharIndexed input, REMatch mymatch)
+ {
+ if (!fake)
+ return super.match (input, mymatch);
+ return super.matchFake (input, mymatch);
+ }
+
+ REMatch matchThis (CharIndexed input, REMatch mymatch)
+ {
+ char ch = input.charAt (mymatch.index);
+ if (ch == CharIndexed.OUT_OF_BOUNDS)
+ return ((mymatch.eflags & RE.REG_NOTEOL) > 0) ? null : mymatch;
+ if (check_java_line_terminators)
+ {
+ if (ch == '\n')
+ {
+ char ch1 = input.charAt (mymatch.index - 1);
+ if (ch1 == '\r')
+ return null;
+ return mymatch;
+ }
+ if (ch == '\r')
+ return mymatch;
+ if (ch == '\u0085')
+ return mymatch; // A next-line character
+ if (ch == '\u2028')
+ return mymatch; // A line-separator character
+ if (ch == '\u2029')
+ return mymatch; // A paragraph-separator character
+ return null;
+ }
+ if (newline != null)
+ {
+ char z;
+ int i = 0; // position in newline
+ do
+ {
+ z = newline.charAt (i);
+ if (ch != z)
+ return null;
+ ++i;
+ ch = input.charAt (mymatch.index + i);
+ }
+ while (i < newline.length ());
+
+ return mymatch;
+ }
+ return null;
+ }
+
+ boolean returnsFixedLengthMatches ()
+ {
+ return true;
+ }
+
+ int findFixedLengthMatches (CharIndexed input, REMatch mymatch, int max)
+ {
+ REMatch m = (REMatch) mymatch.clone ();
+ REToken tk = (REToken) this.clone ();
+ tk.chain (null);
+ if (tk.match (input, m))
+ return max;
+ else
+ return 0;
+ }
+
+ void dump (CPStringBuilder os)
+ {
+ os.append ('$');
+ }
+}