| /* ==================================================================== |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (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.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| ==================================================================== */ |
| |
| package org.apache.poi.ss.formula.eval; |
| |
| import org.apache.poi.ss.formula.functions.Fixed1ArgFunction; |
| import org.apache.poi.ss.formula.functions.Function; |
| |
| |
| /** |
| * Implementation of Excel formula token '%'. <p/> |
| * @author Josh Micich |
| */ |
| public final class PercentEval extends Fixed1ArgFunction { |
| |
| public static final Function instance = new PercentEval(); |
| |
| private PercentEval() { |
| // enforce singleton |
| } |
| |
| public ValueEval evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg0) { |
| double d; |
| try { |
| ValueEval ve = OperandResolver.getSingleValue(arg0, srcRowIndex, srcColumnIndex); |
| d = OperandResolver.coerceValueToDouble(ve); |
| } catch (EvaluationException e) { |
| return e.getErrorEval(); |
| } |
| if (d == 0.0) { // this '==' matches +0.0 and -0.0 |
| return NumberEval.ZERO; |
| } |
| return new NumberEval(d / 100); |
| } |
| } |