зеркало из https://github.com/mozilla/gecko-dev.git
100 строки
3.0 KiB
C++
100 строки
3.0 KiB
C++
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is TransforMiiX XSLT processor.
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*
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* The Initial Developer of the Original Code is The MITRE Corporation.
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* Portions created by MITRE are Copyright (C) 1999 The MITRE Corporation.
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*
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* Portions created by Keith Visco as a Non MITRE employee,
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* (C) 1999 Keith Visco. All Rights Reserved.
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*
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* Contributor(s):
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* Keith Visco, kvisco@ziplink.net
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* -- original author.
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*
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* $Id: AttributeValueTemplate.cpp,v 1.1 2000/04/06 07:44:42 kvisco%ziplink.net Exp $
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*/
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/**
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* AttributeValueTemplate
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* @author <a href="mailto:kvisco@ziplink.net">Keith Visco</a>
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* @version $Revision: 1.1 $ $Date: 2000/04/06 07:44:42 $
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**/
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#include "Expr.h"
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/**
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* Create a new AttributeValueTemplate
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**/
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AttributeValueTemplate::AttributeValueTemplate() {};
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/**
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* Default destructor
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**/
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AttributeValueTemplate::~AttributeValueTemplate() {
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ListIterator* iter = expressions.iterator();
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while ( iter->hasNext() ) {
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iter->next(); //advance iterator to allow remove
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Expr* expr = (Expr*)iter->remove();
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delete expr;
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}
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delete iter;
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} //-- ~AttributeValueTemplate
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/**
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* Adds the given Expr to this AttributeValueTemplate
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**/
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void AttributeValueTemplate::addExpr(Expr* expr) {
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if (expr) expressions.add(expr);
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} //-- addExpr
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/**
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* Evaluates this Expr based on the given context node and processor state
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* @param context the context node for evaluation of this Expr
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* @param ps the ContextState containing the stack information needed
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* for evaluation
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* @return the result of the evaluation
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**/
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ExprResult* AttributeValueTemplate::evaluate(Node* context, ContextState* cs) {
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ListIterator* iter = expressions.iterator();
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String result;
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while ( iter->hasNext() ) {
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Expr* expr = (Expr*)iter->next();
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ExprResult* exprResult = expr->evaluate(context, cs);
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exprResult->stringValue(result);
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delete exprResult;
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}
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delete iter;
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return new StringResult(result);
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} //-- evaluate
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/**
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* Returns the String representation of this Expr.
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* @param dest the String to use when creating the String
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* representation. The String representation will be appended to
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* any data in the destination String, to allow cascading calls to
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* other #toString() methods for Expressions.
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* @return the String representation of this Expr.
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**/
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void AttributeValueTemplate::toString(String& str) {
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ListIterator* iter = expressions.iterator();
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while ( iter->hasNext() ) {
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str.append('{');
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Expr* expr = (Expr*)iter->next();
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expr->toString(str);
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str.append('}');
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}
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delete iter;
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} //-- toString
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