65 lines
2.1 KiB
Java
65 lines
2.1 KiB
Java
/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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package org.apache.poi.hssf.record.formula;
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import java.util.List;
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import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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import org.apache.poi.hssf.record.RecordInputStream;
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/**
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* While formula tokens are stored in RPN order and thus do not need parenthesis for
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* precedence reasons, Parenthesis tokens ARE written to ensure that user entered
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* parenthesis are displayed as-is on reading back
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*
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* Avik Sengupta <lists@aviksengupta.com>
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* Andrew C. Oliver (acoliver at apache dot org)
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* @author Jason Height (jheight at chariot dot net dot au)
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*/
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public final class ParenthesisPtg extends ControlPtg {
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private final static int SIZE = 1;
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public final static byte sid = 0x15;
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public static final ControlPtg instance = new ParenthesisPtg();
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private ParenthesisPtg() {
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// enforce singleton
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}
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public void writeBytes(byte [] array, int offset)
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{
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array[ offset + 0 ] = sid;
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}
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public int getSize()
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{
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return SIZE;
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}
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public String toFormulaString(HSSFWorkbook book)
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{
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return "()";
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}
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public String toFormulaString(String[] operands) {
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return "("+operands[0]+")";
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}
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}
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