276d072ae7
Not part of build yet. a=leaf git-svn-id: svn://10.0.0.236/trunk@65511 18797224-902f-48f8-a5cc-f745e15eee43
147 lines
3.9 KiB
C++
147 lines
3.9 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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* Olivier Gerardin, ogerardin@vo.lu
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* -- original author.
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*/
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/**
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* NumberFunctionCall
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* A representation of the XPath Number funtions
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* @author <A HREF="mailto:ogerardin@vo.lu">Olivier Gerardin</A>
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**/
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#include "FunctionLib.h"
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/**
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* Creates a default NumberFunctionCall. The number() function
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* is the default
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**/
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NumberFunctionCall::NumberFunctionCall() : FunctionCall(XPathNames::NUMBER_FN) {
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type = NUMBER;
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} //-- NumberFunctionCall
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/**
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* Creates a NumberFunctionCall of the given type
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**/
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NumberFunctionCall::NumberFunctionCall(short type) : FunctionCall() {
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this->type = type;
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switch ( type ) {
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case ROUND :
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FunctionCall::setName(XPathNames::ROUND_FN);
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break;
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case CEILING :
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FunctionCall::setName(XPathNames::CEILING_FN);
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break;
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case FLOOR :
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FunctionCall::setName(XPathNames::FLOOR_FN);
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break;
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case NUMBER :
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default :
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FunctionCall::setName(XPathNames::NUMBER_FN);
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break;
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}
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} //-- NumberFunctionCall
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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* NumberFunctionCall::evaluate(Node* context, ContextState* cs) {
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NumberResult* result = new NumberResult();
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ListIterator* iter = params.iterator();
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int argc = params.getLength();
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Expr* param = 0;
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String err;
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switch ( type ) {
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case CEILING :
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if ( requireParams(1, 1, cs) ) {
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double dbl = evaluateToNumber((Expr*)iter->next(), context, cs);
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result->setValue(ceil(dbl));
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}
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else {
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result->setValue(0.0);
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}
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break;
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case FLOOR :
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if ( requireParams(1, 1, cs) ) {
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double dbl = evaluateToNumber((Expr*)iter->next(), context, cs);
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result->setValue(floor(dbl));
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}
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else {
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result->setValue(0.0);
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}
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break;
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case ROUND :
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if ( requireParams(1, 1, cs) ) {
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double dbl = evaluateToNumber((Expr*)iter->next(), context, cs);
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double res = rint(dbl);
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if ((dbl>0.0) && (res == dbl-0.5)) {
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// fix for native round function from math library (rint()) which does not
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// match the XPath spec for positive half values
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result->setValue(res+1.0);
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}
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else {
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result->setValue(res);
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}
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break;
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}
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else result->setValue(0.0);
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break;
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case NUMBER :
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default : //-- number( object? )
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if ( requireParams(0, 1, cs) ) {
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if (iter->hasNext()) {
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param = (Expr*) iter->next();
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ExprResult* exprResult = param->evaluate(context, cs);
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result->setValue(exprResult->numberValue());
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delete exprResult;
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}
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else {
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String resultStr;
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DOMString temp;
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XMLDOMUtils::getNodeValue(context, &temp);
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if ( cs->isStripSpaceAllowed(context) ) {
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XMLUtils::stripSpace(temp, resultStr);
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}
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else {
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resultStr.append(temp);
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}
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Double dbl(resultStr);
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result->setValue(dbl.doubleValue());
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}
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}
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else {
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result = new NumberResult(0.0);
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}
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break;
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}
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delete iter;
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return result;
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} //-- evaluate
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