FuzzyStringComparator.h

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// Copyright (c) 2002-present, OpenMS Inc. -- EKU Tuebingen, ETH Zurich, and FU Berlin
// SPDX-License-Identifier: BSD-3-Clause
//
// --------------------------------------------------------------------------
// $Maintainer: Timo Sachsenberg $
// $Authors: Clemens Groepl, Stephan Aiche $
// --------------------------------------------------------------------------
 
#pragma once
 
 
#include <fstream>
#include <istream>
#include <map>
#include <ostream>
#include <sstream>
#include <string>
#include <utility>
#include <vector>
 
namespace OpenMS
{
  namespace Internal
  {
    namespace ClassTest
    {
      void testStringSimilar(const char * file,
                                           int line,
                                           const std::string & string_1,
                                           const char * string_1_stringified,
                                           const std::string & string_2,
                                           const char * string_2_stringified);
 
      bool isFileSimilar(const std::string &,
                                       const std::string &);
    }
  }
 
  class FuzzyStringComparator
  {
 
    friend void
    Internal::ClassTest::testStringSimilar(
      const char * file,
      int line,
      const std::string & string_1,
      const char * string_1_stringified,
      const std::string & string_2,
      const char * string_2_stringified);
 
    friend bool
    Internal::ClassTest::isFileSimilar(const std::string &,
                                       const std::string &);
 
    struct AbortComparison
    {
    };
 
public:
 
 
 
    FuzzyStringComparator();
 
    virtual
    ~FuzzyStringComparator();
 
    FuzzyStringComparator(const FuzzyStringComparator & rhs);
 
    FuzzyStringComparator & operator=(const FuzzyStringComparator & rhs);
 
 
    const double & getAcceptableRelative() const;
 
    void setAcceptableRelative(const double rhs);
 
    const double & getAcceptableAbsolute() const;
 
    void setAcceptableAbsolute(const double rhs);
 
    const std::vector<std::string> & getWhitelist() const;
 
    std::vector<std::string> & getWhitelist();
 
    void setWhitelist(const std::vector<std::string> & rhs);
 
    void setMatchedWhitelist(const std::vector< std::pair<std::string, std::string> >& rhs); 
 
    const std::vector< std::pair<std::string, std::string> >& getMatchedWhitelist() const; 
 
    const int & getVerboseLevel() const;
 
    void setVerboseLevel(const int rhs);
 
    const int & getTabWidth() const;
 
    void setTabWidth(const int rhs);
 
    const int & getFirstColumn() const;
 
    void setFirstColumn(const int rhs);
 
    std::ostream & getLogDestination() const;
 
    void setLogDestination(std::ostream & rhs);
 
    bool compareStrings(std::string const & lhs, std::string const & rhs);
 
    bool compareStreams(std::istream & input_1, std::istream & input_2);
 
    bool compareFiles(const std::string & filename_1,
                      const std::string & filename_2);
 
protected:
 
    bool compareLines_(std::string const & line_str_1, std::string const & line_str_2);
 
    void reportSuccess_() const;
 
    void reportFailure_(char const * const message) const;
 
    void writeWhitelistCases_(const std::string & prefix) const;
 
    void readNextLine_(std::istream & input_stream, std::string & line_string, int & line_number) const;
 
    bool openInputFileStream_(const std::string & filename, std::ifstream & input_stream) const;
 
    std::ostream * log_dest_;
 
    std::string input_1_name_;
    std::string input_2_name_;
 
    struct InputLine
    {
      std::stringstream line_;
      std::ios::pos_type line_position_;
 
      InputLine();
 
      void setToString(const std::string & s);
 
      void updatePosition();
 
      void seekGToSavedPosition();
 
      bool ok() const;
    };
 
    InputLine input_line_1_;
    InputLine input_line_2_;
 
    int line_num_1_;
    int line_num_2_;
 
    int line_num_1_max_;
    int line_num_2_max_;
 
    std::string line_str_1_max_;
    std::string line_str_2_max_;
 
    double ratio_max_allowed_;
 
    double ratio_max_;
 
    double absdiff_max_allowed_;
 
    double absdiff_max_;
 
    struct StreamElement_
    {
      double number;
      unsigned char letter;
      bool is_number;
      bool is_space;
 
      StreamElement_();
 
      void reset();
 
      void fillFromInputLine(InputLine& input_line, const std::string& str_line);
    };
 
    StreamElement_ element_1_;
    StreamElement_ element_2_;
 
    struct PrefixInfo_
    {
      std::string prefix;
      std::string prefix_whitespaces;
      int line_column;
 
      PrefixInfo_(const InputLine & input_line, const int tab_width_, const int first_column_);
    };
 
    bool is_absdiff_small_;
 
    int verbose_level_;
    int tab_width_;
    int first_column_;
 
    bool is_status_success_;
 
    bool use_prefix_;
 
    std::vector<std::string> whitelist_;
    std::map<std::string, unsigned int> whitelist_cases_;
 
    std::vector< std::pair<std::string, std::string> > matched_whitelist_; 
  }; // class FuzzyStringComparator
 
} //namespace OpenMS