1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 #ifndef FORMULATREE_H

    18 #define FORMULATREE_H

    19 

    20 #include <string>

    21 #include <vector>

    22 using namespace std;

    23 

    24 class ParseResult;

    25 

    26 class FormulaTreeNode

    27 	{

    28 public:

    29 	enum TNodeType

    30 		{

    31 		EReal=1,		// Real() = the number

    32 		EInt,			// Int() = the number

    33 		ECell,			// Char() = cell name

    34 		EParent,		// nothing special

    35 		EParentCell,	// Char() = parent cell name

    36 		ETableCell,		// Real() = target table

    37 		EComponent,		// Real() = component id, [0] = cell name

    38 		EAbsolute,		// Text() = whole thing, [0], [1] = real components, [2] = cell name

    39 		EUnits,			// Real() = units

    40 		EConstant,		// Real() = constant

    41 		EAttribute,		// Int() = attribute

    42 		EMystery,		// Text() = whole thing, [0], [1] = int components

    43 		EFunction,		// Text() = function name, [0] = parameter

    44 		EArithmetic,	// Char() = arithmetic operator, [0], [1] = sub expressions

    45 		ECondition,		// Text() = comparison operator, [0], [1] = sub expressions

    46 		EConditional	// no content, [0] = condition, [1] = then expression, [2] = else expression

    47 		};

    48 

    49 public:

    50 	static FormulaTreeNode* Parse(const string& aFormula);

    51 	virtual ~FormulaTreeNode();

    52 

    53 	int Size() const;

    54 	FormulaTreeNode& operator[](int aIndex);

    55 	const FormulaTreeNode& operator[](int aIndex) const;

    56 	

    57 	TNodeType Type() const;

    58 

    59 	string Text() const;

    60 	char Char() const;

    61 	int Int() const;

    62 	double Real() const;

    63 

    64 	FormulaTreeNode(const FormulaTreeNode& aOther);

    65 	static void Print(const FormulaTreeNode& aNode);

    66 

    67 private:

    68 	FormulaTreeNode(TNodeType aType, const string& aSource, int aStart, int aLen);

    69 	static FormulaTreeNode* NewTree(const ParseResult& aParse, const string& aFormula);

    70 	const FormulaTreeNode& operator=(const FormulaTreeNode& aOther);

    71 

    72 public:

    73 	vector<FormulaTreeNode*> iSubNodes;

    74 

    75 private:

    76 	const string& iSource;

    77 	int iStart;

    78 	int iLen;

    79 	TNodeType iType;

    80 	};

    81 

    82 

    83 #endif