rename 'files' to 'io'

src/io/io.hpp

@@ -0,0 +1,80 @@
+#pragma once
+
+#include <filesystem>
+#include <fstream>
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "typedefs.hpp"
+#include "data/dv.hpp"
+#include "util/Buffer.hpp"
+
+namespace fs = std::filesystem;
+
+namespace io {
+    /// @brief Read-only random access file
+    class rafile {
+        std::ifstream file;
+        size_t filelength;
+    public:
+        rafile(const fs::path& filename);
+
+        void seekg(std::streampos pos);
+        void read(char* buffer, std::streamsize size);
+        size_t length() const;
+    };
+
+    /// @brief Write bytes array to the file without any extra data
+    /// @param file target file
+    /// @param data data bytes array
+    /// @param size size of data bytes array
+    bool write_bytes(const fs::path& file, const ubyte* data, size_t size);
+
+    /// @brief Append bytes array to the file without any extra data
+    /// @param file target file
+    /// @param data data bytes array
+    /// @param size size of data bytes array
+    uint append_bytes(const fs::path& file, const ubyte* data, size_t size);
+
+    /// @brief Write string to the file
+    bool write_string(const fs::path& filename, std::string_view content);
+
+    /// @brief Write dynamic data to the JSON file
+    /// @param nice if true, human readable format will be used, otherwise
+    /// minimal
+    bool write_json(
+        const fs::path& filename, const dv::value& obj, bool nice = true
+    );
+
+    /// @brief Write dynamic data to the binary JSON file
+    /// (see src/coders/binary_json_spec.md)
+    /// @param compressed use gzip compression
+    bool write_binary_json(
+        const fs::path& filename,
+        const dv::value& obj,
+        bool compressed = false
+    );
+
+    bool read(const fs::path&, char* data, size_t size);
+    util::Buffer<ubyte> read_bytes_buffer(const fs::path&);
+    std::unique_ptr<ubyte[]> read_bytes(const fs::path&, size_t& length);
+    std::vector<ubyte> read_bytes(const fs::path&);
+    std::string read_string(const fs::path& filename);
+
+    /// @brief Read JSON or BJSON file
+    /// @param file *.json or *.bjson file
+    dv::value read_json(const fs::path& file);
+    
+    dv::value read_binary_json(const fs::path& file);
+    
+    /// @brief Read TOML file
+    /// @param file *.toml file
+    dv::value read_toml(const fs::path& file);
+
+    std::vector<std::string> read_list(const fs::path& file);
+
+    bool is_data_file(const fs::path& file);
+    bool is_data_interchange_format(const fs::path& ext);
+    dv::value read_object(const fs::path& file);
+}