/// <summary> Indicates whether or not whitespace should be preserved for this element.
/// If an <code>xml:space</code> attribute is found, then if the attribute value is
/// <code>preserve</code>, returns <code>true</code>. For any other value, returns
/// <code>false</code>. If an <code>xml:space</code> attribute was <em>not</em>
/// found, then the following element names result in a return value of <code>true:
/// pre, script, style,</code> and <code>xsl:text</code>. Finally, if a
/// <code>TagTable</code> was passed in and the element appears as the "pre" element
/// in the <code>TagTable</code>, then <code>true</code> will be returned.
/// Otherwise, <code>false</code> is returned.
/// </summary>
/// <param name="element">The <code>Node</code> to test to see if whitespace should be
/// preserved.
/// </param>
/// <param name="tt">The <code>TagTable</code> to test for the <code>getNodePre()</code>
/// function. This may be <code>null</code>, in which case this test
/// is bypassed.
/// </param>
/// <returns> <code>true</code> or <code>false</code>, as explained above.
///
/// </returns>
public static bool XMLPreserveWhiteSpace(Node element, TagTable tt)
{
AttVal attribute;
/* search attributes for xml:space */
for (attribute = element.Attributes; attribute != null; attribute = attribute.Next)
{
if (attribute.Attribute.Equals("xml:space"))
{
if (attribute.Val.Equals("preserve"))
{
return true;
}
return false;
}
}
/* kludge for html docs without explicit xml:space attribute */
if (String.Compare(element.Element, "pre") == 0 || String.Compare(element.Element, "script") == 0 || String.Compare(element.Element, "style") == 0)
{
return true;
}
if ((tt != null) && (tt.FindParser(element) == ParsePre))
{
return true;
}
/* kludge for XSL docs */
if (String.Compare(element.Element, "xsl:text") == 0)
{
return true;
}
return false;
}
