muParserError.cpp

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/*
                 __________
    _____   __ __\______   \_____  _______  ______  ____ _______
   /     \ |  |  \|     ___/\__  \ \_  __ \/  ___/_/ __ \\_  __ \
  |  Y Y  \|  |  /|    |     / __ \_|  | \/\___ \ \  ___/ |  | \/
  |__|_|  /|____/ |____|    (____  /|__|  /____  > \___  >|__|
        \/                       \/            \/      \/
  Copyright (C) 2011 Ingo Berg
 
  Permission is hereby granted, free of charge, to any person obtaining a copy of this
  software and associated documentation files (the "Software"), to deal in the Software
  without restriction, including without limitation the rights to use, copy, modify,
  merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
  permit persons to whom the Software is furnished to do so, subject to the following conditions:
 
  The above copyright notice and this permission notice shall be included in all copies or
  substantial portions of the Software.
 
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
  NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
  DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "muParserError.h"
 
 
namespace mu
{
  const ParserErrorMsg ParserErrorMsg::m_Instance;
 
  //------------------------------------------------------------------------------
  const ParserErrorMsg& ParserErrorMsg::Instance()
  {
    return m_Instance;
  }
 
  //------------------------------------------------------------------------------
  string_type ParserErrorMsg::operator[](unsigned a_iIdx) const
  {
    return (a_iIdx<m_vErrMsg.size()) ? m_vErrMsg[a_iIdx] : string_type();
  }
 
  //---------------------------------------------------------------------------
  ParserErrorMsg::~ParserErrorMsg()
  {}
 
  //---------------------------------------------------------------------------
  ParserErrorMsg& ParserErrorMsg::operator=(const ParserErrorMsg& )
  {
    assert(false);
    return *this;
  }
 
  //---------------------------------------------------------------------------
  ParserErrorMsg::ParserErrorMsg(const ParserErrorMsg&)
  {}
 
  //---------------------------------------------------------------------------
  ParserErrorMsg::ParserErrorMsg()
    :m_vErrMsg(0)
  {
    m_vErrMsg.resize(ecCOUNT);
 
    m_vErrMsg[ecUNASSIGNABLE_TOKEN]     =   "ERR_MUP_UNASSIGNABLE_TOKEN";
    m_vErrMsg[ecINTERNAL_ERROR]         =   "ERR_MUP_INTERNAL_ERROR";
    m_vErrMsg[ecINVALID_NAME]           =   "ERR_MUP_INVALID_NAME";
    m_vErrMsg[ecINVALID_BINOP_IDENT]    =   "ERR_MUP_INVALID_BINOP_IDENT";
    m_vErrMsg[ecINVALID_INFIX_IDENT]    =   "ERR_MUP_INVALID_INFIX_IDENT";
    m_vErrMsg[ecINVALID_POSTFIX_IDENT]  =   "ERR_MUP_INVALID_POSTFIX_IDENT";
    m_vErrMsg[ecINVALID_FUN_PTR]        =   "ERR_MUP_INVALID_FUN_PTR";
    m_vErrMsg[ecEMPTY_EXPRESSION]       =   "ERR_MUP_EMPTY_EXPRESSION";
    m_vErrMsg[ecINVALID_VAR_PTR]        =   "ERR_MUP_INVALID_VAR_PTR";
    m_vErrMsg[ecUNEXPECTED_OPERATOR]    =   "ERR_MUP_UNEXPECTED_OPERATOR";
    m_vErrMsg[ecUNEXPECTED_EOF]         =   "ERR_MUP_UNEXPECTED_EOF";
    m_vErrMsg[ecUNEXPECTED_ARG_SEP]     =   "ERR_MUP_UNEXPECTED_ARG_SEP";
    m_vErrMsg[ecUNEXPECTED_PARENS]      =   "ERR_MUP_UNEXPECTED_PARENS";
    m_vErrMsg[ecUNEXPECTED_FUN]         =   "ERR_MUP_UNEXPECTED_FUN";
    m_vErrMsg[ecUNEXPECTED_VAL]         =   "ERR_MUP_UNEXPECTED_VAL";
    m_vErrMsg[ecUNEXPECTED_VAR]         =   "ERR_MUP_UNEXPECTED_VAR";
    m_vErrMsg[ecUNEXPECTED_ARG]         =   "ERR_MUP_UNEXPECTED_ARG";
    m_vErrMsg[ecMISSING_PARENS]         =   "ERR_MUP_MISSING_PARENS";
    m_vErrMsg[ecTOO_MANY_PARAMS]        =   "ERR_MUP_TOO_MANY_PARAMS";
    m_vErrMsg[ecTOO_FEW_PARAMS]         =   "ERR_MUP_TOO_FEW_PARAMS";
    m_vErrMsg[ecDIV_BY_ZERO]            =   "ERR_MUP_DIV_BY_ZERO";
    m_vErrMsg[ecDOMAIN_ERROR]           =   "ERR_MUP_DOMAIN_ERROR";
    m_vErrMsg[ecNAME_CONFLICT]          =   "ERR_MUP_NAME_CONFLICT";
    m_vErrMsg[ecOPT_PRI]                =   "ERR_MUP_OPT_PRI";
    m_vErrMsg[ecBUILTIN_OVERLOAD]       =   "ERR_MUP_BUILTIN_OVERLOAD";
    m_vErrMsg[ecUNEXPECTED_STR]         =   "ERR_MUP_UNEXPECTED_STR";
    m_vErrMsg[ecUNTERMINATED_STRING]    =   "ERR_MUP_UNTERMINATED_STRING";
    m_vErrMsg[ecSTRING_EXPECTED]        =   "ERR_MUP_STRING_EXPECTED";
    m_vErrMsg[ecVAL_EXPECTED]           =   "ERR_MUP_VAL_EXPECTED";
    m_vErrMsg[ecOPRT_TYPE_CONFLICT]     =   "ERR_MUP_OPRT_TYPE_CONFLICT";
    m_vErrMsg[ecSTR_RESULT]             =   "ERR_MUP_STR_RESULT";
    m_vErrMsg[ecGENERIC]                =   "ERR_MUP_GENERIC";
    m_vErrMsg[ecLOCALE]                 =   "ERR_MUP_LOCALE";
    m_vErrMsg[ecUNEXPECTED_CONDITIONAL] =   "ERR_MUP_UNEXPECTED_CONDITIONAL";
    m_vErrMsg[ecMISSING_ELSE_CLAUSE]    =   "ERR_MUP_MISSING_ELSE_CLAUSE";
    m_vErrMsg[ecMISPLACED_COLON]        =   "ERR_MUP_MISPLACED_COLON";
 
    #if defined(_DEBUG)
      for (int i=0; i<ecCOUNT; ++i)
        if (!m_vErrMsg[i].length())
          assert(false);
    #endif
  }
 
  //---------------------------------------------------------------------------
  //
  //  ParserError class
  //
  //---------------------------------------------------------------------------
 
  ParserError::ParserError()
    :m_strMsg()
    ,m_strFormula()
    ,m_strTok()
    ,m_iPos(-1)
    ,m_iErrc(ecUNDEFINED)
    ,m_ErrMsg(ParserErrorMsg::Instance())
  {
  }
 
  //------------------------------------------------------------------------------
  ParserError::ParserError(EErrorCodes /*a_iErrc*/)
    :m_ErrMsg(ParserErrorMsg::Instance())
  {
    Reset();
    m_strMsg = _nrT("parser error");
  }
 
  //------------------------------------------------------------------------------
  ParserError::ParserError(const string_type &sMsg)
    :m_ErrMsg(ParserErrorMsg::Instance())
  {
    Reset();
    m_strMsg = sMsg;
  }
 
  //------------------------------------------------------------------------------
  ParserError::ParserError( EErrorCodes iErrc,
                            const string_type &sTok,
                            const string_type &sExpr,
                            int iPos )
    :m_strMsg()
    ,m_strFormula(sExpr)
    ,m_strTok(sTok)
    ,m_iPos(iPos)
    ,m_iErrc(iErrc)
    ,m_ErrMsg(ParserErrorMsg::Instance())
  {
    m_strMsg = ::_lang.get(m_ErrMsg[m_iErrc]);
    stringstream_type stream;
    stream << (int)m_iPos;
    ReplaceSubString(m_strMsg, _nrT("$POS$"), stream.str());
    ReplaceSubString(m_strMsg, _nrT("$TOK$"), m_strTok);
  }
 
  //------------------------------------------------------------------------------
  ParserError::ParserError(EErrorCodes iErrc, int iPos, const string_type &sTok)
    :m_strMsg()
    ,m_strFormula()
    ,m_strTok(sTok)
    ,m_iPos(iPos)
    ,m_iErrc(iErrc)
    ,m_ErrMsg(ParserErrorMsg::Instance())
  {
    m_strMsg = m_ErrMsg[m_iErrc];
    stringstream_type stream;
    stream << (int)m_iPos;
    ReplaceSubString(m_strMsg, _nrT("$POS$"), stream.str());
    ReplaceSubString(m_strMsg, _nrT("$TOK$"), m_strTok);
  }
 
  //------------------------------------------------------------------------------
  ParserError::ParserError(const char_type *szMsg, int iPos, const string_type &sTok)
    :m_strMsg(szMsg)
    ,m_strFormula()
    ,m_strTok(sTok)
    ,m_iPos(iPos)
    ,m_iErrc(ecGENERIC)
    ,m_ErrMsg(ParserErrorMsg::Instance())
  {
    stringstream_type stream;
    stream << (int)m_iPos;
    ReplaceSubString(m_strMsg, _nrT("$POS$"), stream.str());
    ReplaceSubString(m_strMsg, _nrT("$TOK$"), m_strTok);
  }
 
  //------------------------------------------------------------------------------
  ParserError::ParserError(const ParserError &a_Obj)
    :m_strMsg(a_Obj.m_strMsg)
    ,m_strFormula(a_Obj.m_strFormula)
    ,m_strTok(a_Obj.m_strTok)
    ,m_iPos(a_Obj.m_iPos)
    ,m_iErrc(a_Obj.m_iErrc)
    ,m_ErrMsg(ParserErrorMsg::Instance())
  {
  }
 
  //------------------------------------------------------------------------------
  ParserError& ParserError::operator=(const ParserError &a_Obj)
  {
    if (this==&a_Obj)
      return *this;
 
    m_strMsg = a_Obj.m_strMsg;
    m_strFormula = a_Obj.m_strFormula;
    m_strTok = a_Obj.m_strTok;
    m_iPos = a_Obj.m_iPos;
    m_iErrc = a_Obj.m_iErrc;
    return *this;
  }
 
  //------------------------------------------------------------------------------
  ParserError::~ParserError()
  {}
 
  //------------------------------------------------------------------------------
  void ParserError::ReplaceSubString( string_type &strSource,
                                      const string_type &strFind,
                                      const string_type &strReplaceWith)
  {
    string_type strResult;
    string_type::size_type iPos(0), iNext(0);
 
    for(;;)
    {
      iNext = strSource.find(strFind, iPos);
      strResult.append(strSource, iPos, iNext-iPos);
 
      if( iNext==string_type::npos )
        break;
 
      strResult.append(strReplaceWith);
      iPos = iNext + strFind.length();
    }
 
    strSource.swap(strResult);
  }
 
  //------------------------------------------------------------------------------
  void ParserError::Reset()
  {
    m_strMsg = _nrT("");
    m_strFormula = _nrT("");
    m_strTok = _nrT("");
    m_iPos = -1;
    m_iErrc = ecUNDEFINED;
  }
 
  //------------------------------------------------------------------------------
  void ParserError::SetFormula(const string_type &a_strFormula)
  {
    m_strFormula = a_strFormula;
  }
 
  //------------------------------------------------------------------------------
  const string_type& ParserError::GetExpr() const
  {
    return m_strFormula;
  }
 
  //------------------------------------------------------------------------------
  const string_type& ParserError::GetMsg() const
  {
    return m_strMsg;
  }
 
  //------------------------------------------------------------------------------
  std::size_t ParserError::GetPos() const
  {
    return m_iPos;
  }
 
  //------------------------------------------------------------------------------
  const string_type& ParserError::GetToken() const
  {
    return m_strTok;
  }
 
  //------------------------------------------------------------------------------
  EErrorCodes ParserError::GetCode() const
  {
    return m_iErrc;
  }
} // namespace mu