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/*
* $Id: ElemDesc.java,v 1.8 2010-11-01 04:34:51 joehw Exp $
*/
package com.sun.org.apache.xml.internal.utils;
import java.util.Hashtable;
/**
* This class is in support of SerializerToHTML, and acts as a sort
* of element representative for HTML elements.
* @xsl.usage internal
*/
class ElemDesc
{
/** Table of attributes for the element */
Hashtable m_attrs = null;
/** Element's flags, describing the role this element plays during
* formatting of the document. This is used as a bitvector; more than one flag
* may be set at a time, bitwise-ORed together. Mnemonic and bits
* have been assigned to the flag values. NOTE: Some bits are
* currently assigned multiple mnemonics; it is the caller's
* responsibility to disambiguate these if necessary. */
int m_flags;
/** Defines mnemonic and bit-value for the EMPTY flag */
static final int EMPTY = (1 << 1);
/** Defines mnemonic and bit-value for the FLOW flag */
static final int FLOW = (1 << 2);
/** Defines mnemonic and bit-value for the BLOCK flag */
static final int BLOCK = (1 << 3);
/** Defines mnemonic and bit-value for the BLOCKFORM flag */
static final int BLOCKFORM = (1 << 4);
/** Defines mnemonic and bit-value for the BLOCKFORMFIELDSET flag */
static final int BLOCKFORMFIELDSET = (1 << 5);
/** Defines mnemonic and bit-value for the CDATA flag */
static final int CDATA = (1 << 6);
/** Defines mnemonic and bit-value for the PCDATA flag */
static final int PCDATA = (1 << 7);
/** Defines mnemonic and bit-value for the RAW flag */
static final int RAW = (1 << 8);
/** Defines mnemonic and bit-value for the INLINE flag */
static final int INLINE = (1 << 9);
/** Defines mnemonic and bit-value for the INLINEA flag */
static final int INLINEA = (1 << 10);
/** Defines mnemonic and bit-value for the INLINELABEL flag */
static final int INLINELABEL = (1 << 11);
/** Defines mnemonic and bit-value for the FONTSTYLE flag */
static final int FONTSTYLE = (1 << 12);
/** Defines mnemonic and bit-value for the PHRASE flag */
static final int PHRASE = (1 << 13);
/** Defines mnemonic and bit-value for the FORMCTRL flag */
static final int FORMCTRL = (1 << 14);
/** Defines mnemonic and bit-value for the SPECIAL flag */
static final int SPECIAL = (1 << 15);
/** Defines mnemonic and bit-value for the ASPECIAL flag */
static final int ASPECIAL = (1 << 16);
/** Defines mnemonic and bit-value for the HEADMISC flag */
static final int HEADMISC = (1 << 17);
/** Defines mnemonic and bit-value for the HEAD flag */
static final int HEAD = (1 << 18);
/** Defines mnemonic and bit-value for the LIST flag */
static final int LIST = (1 << 19);
/** Defines mnemonic and bit-value for the PREFORMATTED flag */
static final int PREFORMATTED = (1 << 20);
/** Defines mnemonic and bit-value for the WHITESPACESENSITIVE flag */
static final int WHITESPACESENSITIVE = (1 << 21);
/** Defines mnemonic and bit-value for the ATTRURL flag */
static final int ATTRURL = (1 << 1);
/** Defines mnemonic and bit-value for the ATTREMPTY flag */
static final int ATTREMPTY = (1 << 2);
/**
* Construct an ElementDescription with an initial set of flags.
*
* @param flags Element flags
* @see m_flags
*/
ElemDesc(int flags)
{
m_flags = flags;
}
/**
* "is (this element described by these flags)".
*
* This might more properly be called areFlagsSet(). It accepts an
* integer (being used as a bitvector) and checks whether all the
* corresponding bits are set in our internal flags. Note that this
* test is performed as a bitwise AND, not an equality test, so a
* 0 bit in the input means "don't test", not "must be set false".
*
* @param flags Vector of flags to compare against this element's flags
*
* @return true if the flags set in the parameter are also set in the
* element's stored flags.
*
* @see m_flags
* @see isAttrFlagSet
*/
boolean is(int flags)
{
// int which = (m_flags & flags);
return (m_flags & flags) != 0;
}
/**
* Set a new attribute for this element
*
*
* @param name Attribute name
* @param flags Attibute flags
*/
void setAttr(String name, int flags)
{
if (null == m_attrs)
m_attrs = new Hashtable();
m_attrs.put(name, new Integer(flags));
}
/**
* Find out if a flag is set in a given attribute of this element
*
*
* @param name Attribute name
* @param flags Flag to check
*
* @return True if the flag is set in the attribute. Returns false
* if the attribute is not found
* @see m_flags
*/
boolean isAttrFlagSet(String name, int flags)
{
if (null != m_attrs)
{
Integer _flags = (Integer) m_attrs.get(name);
if (null != _flags)
{
return (_flags.intValue() & flags) != 0;
}
}
return false;
}
}