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1 files changed, 317 insertions, 0 deletions

diff --git a/libjava/classpath/javax/swing/text/html/parser/Element.java b/libjava/classpath/javax/swing/text/html/parser/Element.java
new file mode 100644
index 000000000..c07c07f54
--- /dev/null
+++ b/libjava/classpath/javax/swing/text/html/parser/Element.java
@@ -0,0 +1,317 @@
+/* Element.java --
+   Copyright (C) 2005 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 javax.swing.text.html.parser;
+
+import gnu.javax.swing.text.html.parser.support.gnuStringIntMapper;
+
+import java.io.Serializable;
+
+import java.util.BitSet;
+
+/**
+ * <p>
+ * Stores the element information, obtained by parsing SGML DTD
+ * tag <code>&lt;!ELEMENT .. &gt;</code>. This class has no public
+ * constructor and can only be instantiated using the
+ * {@link javax.swing.text.html.parser.DTD } methods</p>
+ *
+ * <p>SGML defines elements that represent structures or
+ * behavior. An element typically consists of a start tag, content, and an
+ * end tag. Hence the elements are not tags. The HTML 4.0 definition specifies
+ * that some elements are not required to have the end tags. Also, some
+ * HTML elements (like <code>&lt;hr&gt;</code>) have no content. Element names
+ * are case sensitive.</p>
+ * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
+ */
+public final class Element
+  implements DTDConstants, Serializable
+{
+  /**
+   * Package level mapper between type names and they string values.
+   */
+  static final gnuStringIntMapper mapper =
+    new gnuStringIntMapper()
+    {
+      protected void create()
+      {
+        add("CDATA", DTDConstants.CDATA);
+        add("RCDATA", DTDConstants.RCDATA);
+        add("EMPTY", DTDConstants.EMPTY);
+        add("ANY", DTDConstants.ANY);
+      }
+    };
+
+  /** Use serialVersionUID for interoperability. */
+  private static final long serialVersionUID = -6717939384601675586L;
+
+  /**
+   * The element attributes.
+   */
+  public AttributeList atts;
+
+  /**
+   * Contains refernces to elements that must NOT occur inside this element,
+   * at any level of hierarchy.
+   */
+  public BitSet exclusions;
+
+  /**
+   * Contains refernces to elements that must CAN occur inside this element,
+   * at any level of hierarchy.
+   */
+  public BitSet inclusions;
+
+  /**
+   * The content model, defining elements, entities and DTD text
+   * that may/may not occur inside this element.
+   */
+  public ContentModel content;
+
+  /**
+   * A field to store additional user data for this Element.
+   */
+  public Object data;
+
+  /**
+   * The element name.
+   */
+  public String name;
+
+  /**
+   * True is this element need not to have the closing tag, false
+   * otherwise. The HTML 4.0 definition specifies
+   * that some elements (like <code>&lt;hr&gt;</code>are
+   * not required to have the end tags.
+   */
+  public boolean oEnd;
+
+  /**
+   * True is this element need not to have the starting tag, false
+   * otherwise. The HTML 4.0 definition specifies
+   * that some elements (like <code>&lt;head&gt;</code> or
+   * <code>&lt;body&gt;</code>) are
+   * not required to have the start tags.
+
+   */
+  public boolean oStart;
+
+  /**
+   * This field contains the unique integer identifier of this Element,
+   * used to refer the element (more exactly, the element flag)
+   * in <code>inclusions</code> and <code>exclusions</code> bit set.
+   */
+  public int index;
+
+  /**
+   * The element type, containing value, defined in DTDConstants.
+   * In this implementation, the element type can be
+   * CDATA, RCDATA, EMPTY or ANY.
+   */
+  public int type;
+
+  /**
+   * The default constructor must have package level access in this
+   * class. Use DTD.defineElement(..) to create an element when required.
+   */
+  Element()
+  {
+    // Nothing to do here.
+  }
+
+  /**
+   * Converts the string representation of the element type
+   * into its unique integer identifier, defined in DTDConstants.
+   * @param a_type A name of the type
+   * @return DTDConstants.CDATA, DTDConstants.RCDATA, DTDConstants.EMPTY,
+   * DTDConstants.ANY or null if the type name is not
+   * "CDATA", "RCDATA", "EMPTY" or "ANY". This function is case sensitive.
+   * @throws NullPointerException if <code>a_type</code> is null.
+   */
+  public static int name2type(String a_type)
+  {
+    return mapper.get(a_type);
+  }
+
+  /**
+   * Get the element attribute by name.
+   * @param attribute the attribute name, case insensitive.
+   * @return the correspoding attribute of this element. The class,
+   * for storing as attribute list, as a single attribute, is used to
+   * store a single attribute in this case.
+   * @throws NullPointerException if the attribute name is null.
+   */
+  public AttributeList getAttribute(String attribute)
+  {
+    AttributeList a = atts;
+
+    while (a != null && !attribute.equalsIgnoreCase(a.name))
+      a = a.next;
+
+    return a;
+  }
+
+  /**
+   * Get the element attribute by its value.
+   * @param a_value the attribute value, case insensitive.
+   * @return the correspoding attribute of this element. The class,
+   * for storing as attribute list, as a single attribute, is used to
+   * store a single attribute in this case. If there are several
+   * attributes with the same value, there is no garranty, which one
+   * is returned.
+   */
+  public AttributeList getAttributeByValue(String a_value)
+  {
+    AttributeList a = atts;
+
+    if (a_value == null)
+      {
+        while (a != null)
+          {
+            if (a.value == null)
+              return a;
+
+            a = a.next;
+          }
+      }
+    else
+      {
+        while (a != null)
+          {
+            if (a.value != null && a_value.equalsIgnoreCase(a.value))
+              return a;
+
+            a = a.next;
+          }
+      }
+
+    return null;
+  }
+
+  /**
+   * Get all attributes of this document as an attribute list.
+   * @return The attribute list.
+   */
+  public AttributeList getAttributes()
+  {
+    return atts;
+  }
+
+  /**
+   * Get the content model, defining elements, entities and DTD text
+   * that may/may not occur inside this element.
+   */
+  public ContentModel getContent()
+  {
+    return content;
+  }
+
+  /**
+   * Returns true for the element with no content.
+   * Empty elements are defined with the SGML DTD keyword "EMPTY".
+   * @return true if content model field (content) method is equal to
+   * null or its method empty() returns true.
+   */
+  public boolean isEmpty()
+  {
+    return content == null || content.empty();
+  }
+
+  /**
+   * Get the unique integer identifier of this Element,
+   * used to refer the element (more exactly, the element flag)
+   * in <code>inclusions</code> and <code>exclusions</code> bit set.
+   * WARNING: This value may not be the same between different
+   * implementations.
+   */
+  public int getIndex()
+  {
+    return index;
+  }
+
+  /**
+   * Get the element name.
+   */
+  public String getName()
+  {
+    return name;
+  }
+
+  /**
+   * Get the element type.
+   * @return one of the values, defined DTDConstants.
+   * In this implementation, the element type can be
+   * CDATA, RCDATA, EMPTY or ANY.
+   */
+  public int getType()
+  {
+    return type;
+  }
+
+  /**
+   * True is this element need not to have the starting tag, false
+   * otherwise.s element need not to have the closing tag, false
+   * otherwise. The HTML 4.0 definition specifies
+   * that some elements (like <code>&lt;hr&gt;</code>are
+   * not required to have the end tags.
+   */
+  public boolean omitEnd()
+  {
+    return oEnd;
+  }
+
+  /**
+   * True is this element need not to have the closing tag, false
+   * otherwise. The HTML 4.0 definition specifies
+   * that some elements (like <code>&lt;head&gt;</code> or
+   * <code>&lt;body&gt;</code>) are
+   * not required to have the start tags.
+   */
+  public boolean omitStart()
+  {
+    return oStart;
+  }
+
+  /**
+   * Returns the name of this element.
+   */
+  public String toString()
+  {
+    return name;
+  }
+}