json-validator/tests/custom_filter.h

#pragma once

#include <algorithm>
#include <cstddef>
#include <regex>
#include <string>
#include <vector>

class Glob {
private:
  std::regex re_;

public:
  explicit Glob(std::string glob) {
    for (size_t i = glob.find('.'); i != std::string::npos; i = glob.find('.', i + 2)) {
      glob.insert(glob.begin() + static_cast<ptrdiff_t>(i), '\\');
    }
    for (size_t i = glob.find('*'); i != std::string::npos; i = glob.find('*', i + 2)) {
      glob.insert(glob.begin() + static_cast<ptrdiff_t>(i), '.');
    }
    re_ = std::regex(glob);
  }

  bool operator==(std::string const & str) const { return std::regex_search(str, re_); }
};

struct RecursiveTestFilter {
  std::vector<Glob> whitelist;
  std::vector<Glob> blacklist;

  bool accepts(std::string const & str) const {
    auto in = [&str](auto & glob) { return glob == str; };
    return std::ranges::count_if(blacklist, in) == 0 and
           (whitelist.empty() or std::ranges::count_if(whitelist, in) > 0);
  }
};