| 1 | /*******************************************************************************
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| 2 | * You may amend and distribute as you like, but don't remove this header!
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| 3 | *
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| 4 | * EPPlus provides server-side generation of Excel 2007/2010 spreadsheets.
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| 5 | * See http://www.codeplex.com/EPPlus for details.
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| 6 | *
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| 7 | * Copyright (C) 2011 Jan Källman
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| 8 | *
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| 9 | * This library is free software; you can redistribute it and/or
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| 10 | * modify it under the terms of the GNU Lesser General Public
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| 11 | * License as published by the Free Software Foundation; either
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| 12 | * version 2.1 of the License, or (at your option) any later version.
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| 13 |
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| 14 | * This library is distributed in the hope that it will be useful,
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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| 17 | * See the GNU Lesser General Public License for more details.
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| 18 | *
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| 19 | * The GNU Lesser General Public License can be viewed at http://www.opensource.org/licenses/lgpl-license.php
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| 20 | * If you unfamiliar with this license or have questions about it, here is an http://www.gnu.org/licenses/gpl-faq.html
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| 21 | *
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| 22 | * All code and executables are provided "as is" with no warranty either express or implied.
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| 23 | * The author accepts no liability for any damage or loss of business that this product may cause.
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| 24 | *
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| 25 | * Code change notes:
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| 26 | *
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| 27 | * Author Change Date
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| 28 | * ******************************************************************************
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| 29 | * Mats Alm Added 2013-03-01 (Prior file history on https://github.com/swmal/ExcelFormulaParser)
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| 30 | *******************************************************************************/
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| 31 | using System;
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| 32 | using System.Collections.Generic;
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| 33 | using System.Linq;
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| 34 | using System.Text;
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| 35 |
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| 36 | namespace OfficeOpenXml.FormulaParsing.Excel.Operators
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| 37 | {
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| 38 | public class OperatorsDict : Dictionary<string, IOperator>
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| 39 | {
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| 40 | public OperatorsDict()
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| 41 | {
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| 42 | Add("+", Operator.Plus);
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| 43 | Add("-", Operator.Minus);
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| 44 | Add("*", Operator.Multiply);
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| 45 | Add("/", Operator.Divide);
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| 46 | Add("^", Operator.Exp);
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| 47 | Add("=", Operator.Eq);
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| 48 | Add(">", Operator.GreaterThan);
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| 49 | Add(">=", Operator.GreaterThanOrEqual);
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| 50 | Add("<", Operator.LessThan);
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| 51 | Add("<=", Operator.LessThanOrEqual);
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| 52 | Add("<>", Operator.NotEqualsTo);
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| 53 | Add("&", Operator.Concat);
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| 54 | }
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| 55 |
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| 56 | private static IDictionary<string, IOperator> _instance;
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| 57 |
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| 58 | public static IDictionary<string, IOperator> Instance
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| 59 | {
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| 60 | get
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| 61 | {
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| 62 | if (_instance == null)
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| 63 | {
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| 64 | _instance = new OperatorsDict();
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| 65 | }
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| 66 | return _instance;
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| 67 | }
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| 68 | }
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| 69 | }
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| 70 | }
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