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164 lines
7 KiB
C++
164 lines
7 KiB
C++
/***************************************************************************************************
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**
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** Original work Copyright (C) 2013 Ingo Berg
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** Modified work Copyright 2014 Roman Telezhinsky <dismine@gmail.com>
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**
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** Permission is hereby granted, free of charge, to any person obtaining a copy of this
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** software and associated documentation files (the "Software"), to deal in the Software
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** without restriction, including without limitation the rights to use, copy, modify,
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** merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
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** permit persons to whom the Software is furnished to do so, subject to the following conditions:
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**
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** The above copyright notice and this permission notice shall be included in all copies or
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** substantial portions of the Software.
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**
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** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
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** NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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** NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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** DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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**
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******************************************************************************************************/
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#ifndef QMUPARSERERROR_H
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#define QMUPARSERERROR_H
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#include <cassert>
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#include <stdexcept>
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#include <string>
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#include <sstream>
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#include <memory>
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#include "qmuparserdef.h"
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/** \file
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\brief This file defines the error class used by the parser.
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*/
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namespace qmu
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{
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/** \brief Error codes. */
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enum EErrorCodes
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{
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// Formula syntax errors
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ecUNEXPECTED_OPERATOR = 0, ///< Unexpected binary operator found
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ecUNASSIGNABLE_TOKEN = 1, ///< Token cant be identified.
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ecUNEXPECTED_EOF = 2, ///< Unexpected end of formula. (Example: "2+sin(")
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ecUNEXPECTED_ARG_SEP = 3, ///< An unexpected comma has been found. (Example: "1,23")
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ecUNEXPECTED_ARG = 4, ///< An unexpected argument has been found
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ecUNEXPECTED_VAL = 5, ///< An unexpected value token has been found
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ecUNEXPECTED_VAR = 6, ///< An unexpected variable token has been found
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ecUNEXPECTED_PARENS = 7, ///< Unexpected Parenthesis, opening or closing
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ecUNEXPECTED_STR = 8, ///< A string has been found at an inapropriate position
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ecSTRING_EXPECTED = 9, ///< A string function has been called with a different type of argument
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ecVAL_EXPECTED = 10, ///< A numerical function has been called with a non value type of argument
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ecMISSING_PARENS = 11, ///< Missing parens. (Example: "3*sin(3")
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ecUNEXPECTED_FUN = 12, ///< Unexpected function found. (Example: "sin(8)cos(9)")
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ecUNTERMINATED_STRING = 13, ///< unterminated string constant. (Example: "3*valueof("hello)")
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ecTOO_MANY_PARAMS = 14, ///< Too many function parameters
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ecTOO_FEW_PARAMS = 15, ///< Too few function parameters. (Example: "ite(1<2,2)")
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ecOPRT_TYPE_CONFLICT = 16, ///< binary operators may only be applied to value items of the same type
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ecSTR_RESULT = 17, ///< result is a string
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// Invalid Parser input Parameters
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ecINVALID_NAME = 18, ///< Invalid function, variable or constant name.
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ecINVALID_BINOP_IDENT = 19, ///< Invalid binary operator identifier
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ecINVALID_INFIX_IDENT = 20, ///< Invalid function, variable or constant name.
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ecINVALID_POSTFIX_IDENT = 21, ///< Invalid function, variable or constant name.
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ecBUILTIN_OVERLOAD = 22, ///< Trying to overload builtin operator
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ecINVALID_FUN_PTR = 23, ///< Invalid callback function pointer
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ecINVALID_VAR_PTR = 24, ///< Invalid variable pointer
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ecEMPTY_EXPRESSION = 25, ///< The Expression is empty
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ecNAME_CONFLICT = 26, ///< Name conflict
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ecOPT_PRI = 27, ///< Invalid operator priority
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//
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ecDOMAIN_ERROR = 28, ///< catch division by zero, sqrt(-1), log(0) (currently unused)
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ecDIV_BY_ZERO = 29, ///< Division by zero (currently unused)
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ecGENERIC = 30, ///< Generic error
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ecLOCALE = 31, ///< Conflict with current locale
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ecUNEXPECTED_CONDITIONAL = 32,
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ecMISSING_ELSE_CLAUSE = 33,
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ecMISPLACED_COLON = 34,
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// internal errors
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ecINTERNAL_ERROR = 35, ///< Internal error of any kind.
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// The last two are special entries
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ecCOUNT, ///< This is no error code, It just stores just the total number of error codes
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ecUNDEFINED = -1 ///< Undefined message, placeholder to detect unassigned error messages
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};
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//---------------------------------------------------------------------------
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/** \brief A class that handles the error messages.
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*/
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class QmuParserErrorMsg
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{
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public:
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typedef QmuParserErrorMsg self_type;
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QmuParserErrorMsg& operator=(const QmuParserErrorMsg &);
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QmuParserErrorMsg(const QmuParserErrorMsg&);
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QmuParserErrorMsg();
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~QmuParserErrorMsg();
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static const QmuParserErrorMsg& Instance();
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QString operator[](unsigned a_iIdx) const;
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private:
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QVector<QString> m_vErrMsg; ///< A vector with the predefined error messages
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static const self_type m_Instance; ///< The instance pointer
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};
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//---------------------------------------------------------------------------
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/** \brief Error class of the parser.
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\author Ingo Berg
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Part of the math parser package.
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*/
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class QmuParserError
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{
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private:
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/** \brief Replace all ocuurences of a substring with another string. */
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void ReplaceSubString(QString &strSource,
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const QString &strFind,
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const QString &strReplaceWith);
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void Reset();
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public:
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QmuParserError();
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explicit QmuParserError(EErrorCodes a_iErrc);
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explicit QmuParserError(const QString &sMsg);
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QmuParserError( EErrorCodes a_iErrc, const QString &sTok, const QString &sFormula = QString(), int a_iPos = -1);
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QmuParserError(EErrorCodes a_iErrc, int a_iPos, const QString &sTok);
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QmuParserError(const QString &a_szMsg, int a_iPos, const QString &sTok = QString());
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QmuParserError(const QmuParserError &a_Obj);
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QmuParserError& operator=(const QmuParserError &a_Obj);
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~QmuParserError();
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void SetFormula(const QString &a_strFormula);
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const QString &GetExpr() const;
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const QString &GetMsg() const;
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std::size_t GetPos() const;
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const QString &GetToken() const;
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EErrorCodes GetCode() const;
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private:
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QString m_strMsg; ///< The message string
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QString m_strFormula; ///< Formula string
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QString m_strTok; ///< Token related with the error
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int m_iPos; ///< Formula position related to the error
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EErrorCodes m_iErrc; ///< Error code
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const QmuParserErrorMsg &m_ErrMsg;
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};
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} // namespace qmu
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#endif
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