stringfilter_type.h

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/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <https://www.gnu.org/licenses/old-licenses/gpl-2.0>.
 */
 
#ifndef STRINGFILTER_TYPE_H
#define STRINGFILTER_TYPE_H
 
#include "strings_type.h"
 
struct StringFilter {
private:
  struct WordState {
    std::string word;                          
    bool match;                                
  };
 
  std::vector<WordState> word_index;             
  uint word_matches = 0;                         
 
  const bool *case_sensitive;                    
  bool locale_aware;                             
 
public:
  StringFilter(const bool *case_sensitive = nullptr, bool locale_aware = true) : case_sensitive(case_sensitive), locale_aware(locale_aware) {}
 
  void SetFilterTerm(std::string_view str);
 
  bool IsEmpty() const { return this->word_index.empty(); }
 
  void ResetState();
  void AddLine(const char *) = delete; // prevent implicit construction of string_view from potential nullptr
  void AddLine(std::string_view str);
 
  bool GetState() const { return this->word_matches == this->word_index.size(); }
};
 
#endif /* STRINGFILTER_TYPE_H */