aare/include/aare/NumpyHelpers.hpp
2024-10-28 11:22:12 +01:00

55 lines
1.4 KiB
C++

#pragma once
#include <algorithm>
#include <array>
#include <filesystem>
#include <fstream>
#include <iostream>
#include <numeric>
#include <sstream>
#include <string>
#include <unordered_map>
#include <vector>
#include "aare/Dtype.hpp"
#include "aare/defs.hpp"
namespace aare {
struct NumpyHeader {
Dtype dtype{aare::Dtype::ERROR};
bool fortran_order{false};
std::vector<size_t> shape{};
std::string to_string() const;
};
namespace NumpyHelpers {
const constexpr std::array<char, 6> magic_str{'\x93', 'N', 'U', 'M', 'P', 'Y'};
const uint8_t magic_string_length{6};
std::string parse_str(const std::string &in);
/**
Removes leading and trailing whitespaces
*/
std::string trim(const std::string &str);
std::vector<std::string> parse_tuple(std::string in);
bool parse_bool(const std::string &in);
std::string get_value_from_map(const std::string &mapstr);
std::unordered_map<std::string, std::string> parse_dict(std::string in, const std::vector<std::string> &keys);
template <typename T, size_t N> bool in_array(T val, const std::array<T, N> &arr) {
return std::find(std::begin(arr), std::end(arr), val) != std::end(arr);
}
bool is_digits(const std::string &str);
aare::Dtype parse_descr(std::string typestring);
size_t write_header(const std::filesystem::path &fname, const NumpyHeader &header);
size_t write_header(std::ostream &out, const NumpyHeader &header);
} // namespace NumpyHelpers
} // namespace aare