sicking%bigfoot.com 6265d66757 Speed up NodeSets by always keeping them in document order. Only sort when we get nodes in random order (such as for id()) or when merging NodeSets.
This removes the need for the sortByDocumentOrder function.

b=85893 r=Pike rs=jag


git-svn-id: svn://10.0.0.236/trunk@113703 18797224-902f-48f8-a5cc-f745e15eee43
2002-02-05 14:22:34 +00:00

125 lines
3.9 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is TransforMiiX XSLT processor.
*
* The Initial Developer of the Original Code is The MITRE Corporation.
* Portions created by MITRE are Copyright (C) 1999 The MITRE Corporation.
*
* Portions created by Keith Visco as a Non MITRE employee,
* (C) 1999 Keith Visco. All Rights Reserved.
*
* Contributor(s):
* Keith Visco, kvisco@ziplink.net
* -- original author.
*
*/
#include "Expr.h"
//- Constructors -/
/**
* Creates a new BasicNodeExpr of the given type
**/
BasicNodeExpr::BasicNodeExpr(NodeExpr::NodeExprType nodeExprType) {
this->type = nodeExprType;
nodeNameSet = MB_FALSE;
} //-- BasicNodeExpr
//------------------/
//- Public Methods -/
//------------------/
void BasicNodeExpr::setNodeName(const String& name) {
this->nodeName = name;
nodeNameSet = MB_TRUE;
}
//-----------------------------/
//- Methods from NodeExpr.cpp -/
//-----------------------------/
/**
* Evaluates this Expr based on the given context node and processor state
* @param context the context node for evaluation of this Expr
* @param ps the ContextState containing the stack information needed
* for evaluation
* @return the result of the evaluation
**/
ExprResult* BasicNodeExpr::evaluate(Node* context, ContextState* cs) {
NS_ASSERTION(0, "BasicNodeExpr::evaluate called");
return 0;
} //-- evaluate
/**
* Returns the default priority of this Expr based on the given Node,
* context Node, and ContextState.
**/
double BasicNodeExpr::getDefaultPriority(Node* node, Node* context,
ContextState* cs) {
if (nodeNameSet)
return 0;
return -0.5;
} //-- getDefaultPriority
/**
* Determines whether this NodeExpr matches the given node within
* the given context
**/
MBool BasicNodeExpr::matches(Node* node, Node* context, ContextState* cs) {
if (!node)
return MB_FALSE;
switch (type) {
case NodeExpr::COMMENT_EXPR:
return (MBool)(node->getNodeType() == Node::COMMENT_NODE);
case NodeExpr::PI_EXPR :
return (MBool)(node->getNodeType() == Node::PROCESSING_INSTRUCTION_NODE &&
!nodeNameSet || nodeName.isEqual(node->getNodeName()));
default: //-- node()
if (node->getNodeType() == Node::TEXT_NODE ||
node->getNodeType() == Node::CDATA_SECTION_NODE)
return !cs->isStripSpaceAllowed(node);
return MB_TRUE;
}
return MB_TRUE;
} //-- matches
/**
* Returns the String representation of this NodeExpr.
* @param dest the String to use when creating the String
* representation. The String representation will be appended to
* any data in the destination String, to allow cascading calls to
* other #toString() methods for Expressions.
* @return the String representation of this NodeExpr.
**/
void BasicNodeExpr::toString(String& dest) {
switch (type) {
case NodeExpr::COMMENT_EXPR:
dest.append("comment()");
break;
case NodeExpr::PI_EXPR :
dest.append("processing-instruction(");
if (nodeNameSet) {
dest.append('\'');
dest.append(nodeName);
dest.append('\'');
}
dest.append(')');
break;
default: //-- node()
dest.append("node()");
break;
}
} //-- toString