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/*
* parsedstatement.cc - Copyright 2005 Frerich Raabe <raabe@kde.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "parsedstatement.h"
#include "path.h"
#include "xml/dom_nodeimpl.h"
#include "xml/dom_nodelistimpl.h"
#include "xml/dom3_xpathimpl.h"
using namespace DOM;
namespace khtml {
namespace XPath {
Expression *khtmlParseXPathStatement( const DOMString &statement, int& ec );
ParsedStatement::ParsedStatement( const DOMString &statement, khtml::XPathNSResolverImpl* res )
: m_res( res ), m_expr( 0 ), m_ec( 0 )
{
parse( statement );
}
ParsedStatement::~ParsedStatement()
{
delete m_expr;
}
void ParsedStatement::parse( const DOMString &statement )
{
kDebug(6011) << "parsing:" << statement.string();
m_ec = 0;
delete m_expr;
Expression::evaluationContext().reset( 0, m_res.get() );
m_expr = khtmlParseXPathStatement( statement, m_ec );
kDebug(6011) << "AST:" << (m_expr ? m_expr->dump() : QString::fromLatin1("*** parse error ***"));
}
void ParsedStatement::optimize()
{
if ( !m_expr ) {
return;
}
m_expr->optimize();
}
Value ParsedStatement::evaluate(NodeImpl* context, int& ec) const
{
Expression::evaluationContext().reset(context, m_res.get());
Value res = m_expr->evaluate();
ec = Expression::evaluationContext().exceptionCode;
// If the result is a nodeset, we need to put it in document order
// and remove duplicates.
if ( res.isNodeset() )
res.toNodeset()->normalizeUpto(StaticNodeListImpl::DocumentOrder);
return res;
}
QString ParsedStatement::dump() const
{
return m_expr->dump();
}
} // namespace XPath
} // namespace khtml
// kate: indent-width 4; replace-tabs off; tab-width 4; space-indent off;
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