/*============================================================================
  CMake - Cross Platform Makefile Generator
  Copyright 2000-2013 Kitware, Inc., Insight Software Consortium

  Distributed under the OSI-approved BSD License (the "License");
  see accompanying file Copyright.txt for details.

  This software is distributed WITHOUT ANY WARRANTY; without even the
  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the License for more information.
============================================================================*/
#ifndef cmVisualStudioSlnParser_h
#define cmVisualStudioSlnParser_h

#include "cmStandardIncludes.h"

#include <bitset>

class cmSlnData;

class cmVisualStudioSlnParser
{
public:
  enum ParseResult
  {
    ResultOK = 0,

    ResultInternalError = -1,
    ResultExternalError = 1,

    ResultErrorOpeningInput = ResultExternalError,
    ResultErrorReadingInput,
    ResultErrorInputStructure,
    ResultErrorInputData,

    ResultErrorBadInternalState = ResultInternalError,
    ResultErrorUnsupportedDataGroup = ResultInternalError - 1
  };

  enum DataGroup
  {
    DataGroupProjectsBit,
    DataGroupProjectDependenciesBit,
    DataGroupSolutionConfigurationsBit,
    DataGroupProjectConfigurationsBit,
    DataGroupSolutionFiltersBit,
    DataGroupGenericGlobalSectionsBit,
    DataGroupCount
  };

  typedef std::bitset<DataGroupCount> DataGroupSet;

  static const DataGroupSet DataGroupProjects;
  static const DataGroupSet DataGroupProjectDependencies;
  static const DataGroupSet DataGroupSolutionConfigurations;
  static const DataGroupSet DataGroupProjectConfigurations;
  static const DataGroupSet DataGroupSolutionFilters;
  static const DataGroupSet DataGroupGenericGlobalSections;
  static const DataGroupSet DataGroupAll;

  bool Parse(std::istream& input, cmSlnData& output,
             DataGroupSet dataGroups = DataGroupAll);

  bool ParseFile(const std::string& file, cmSlnData& output,
                 DataGroupSet dataGroups = DataGroupAll);

  ParseResult GetParseResult() const;

  size_t GetParseResultLine() const;

  bool GetParseHadBOM() const;

protected:
  class State;
  friend class State;
  class ParsedLine;

  struct ResultData
  {
    ParseResult Result;
    size_t ResultLine;
    bool HadBOM;

    ResultData();
    void Clear();
    void SetError(ParseResult error, size_t line);
  } LastResult;

  bool IsDataGroupSetSupported(DataGroupSet dataGroups) const;

  bool ParseImpl(std::istream& input, cmSlnData& output, State& state);

  bool ParseBOM(std::istream& input, std::string& line, State& state);

  bool ParseMultiValueTag(const std::string& line, ParsedLine& parsedLine,
                          State& state);

  bool ParseSingleValueTag(const std::string& line, ParsedLine& parsedLine,
                           State& state);

  bool ParseKeyValuePair(const std::string& line, ParsedLine& parsedLine,
                         State& state);

  bool ParseTag(const std::string& fullTag, ParsedLine& parsedLine,
                State& state);

  bool ParseValue(const std::string& value, ParsedLine& parsedLine);
};

#endif