from_gzip.hpp

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#ifndef EMINEM_FROM_GZIP_HPP
#define EMINEM_FROM_GZIP_HPP
 
#include <memory>
#include <cstddef>
 
#include "Parser.hpp"
#include "byteme/byteme.hpp"
 
namespace eminem {
 
// For back-compatibility.
// If people want to parametrize the Reader construction, they should just directly create the Parser themselves.
typedef ParserOptions ParseGzipFileOptions;
typedef ParserOptions ParseZlibBufferOptions;
typedef ParserOptions ParseSomeFileOptions;
typedef ParserOptions ParseSomeBufferOptions;
template<typename Index_ = unsigned long long>
auto parse_gzip_file(const char* path, const ParserOptions& options) {
    auto reader = std::make_unique<byteme::GzipFileReader>(path, byteme::GzipFileReaderOptions());
    return Parser<decltype(reader), Index_>(std::move(reader), options);
}
 
template<typename Index_ = unsigned long long>
auto parse_zlib_buffer(const unsigned char* buffer, std::size_t len, const ParserOptions& options) {
    auto reader = std::make_unique<byteme::ZlibBufferReader>(buffer, len, byteme::ZlibBufferReaderOptions());
    return Parser<decltype(reader), Index_>(std::move(reader), options);
}
 
template<typename Index_ = unsigned long long>
auto parse_some_file(const char* path, const ParserOptions& options) {
    std::unique_ptr<byteme::Reader> ptr;
    if (byteme::is_gzip(path)) {
        ptr.reset(new byteme::GzipFileReader(path, {}));
    } else {
        ptr.reset(new byteme::RawFileReader(path, {}));
    }
    return Parser<std::unique_ptr<byteme::Reader>, Index_>(std::move(ptr), options);
}
 
template<typename Index_ = unsigned long long>
auto parse_some_buffer(const unsigned char* buffer, std::size_t len, const ParserOptions& options) {
    std::unique_ptr<byteme::Reader> ptr;
    if (byteme::is_zlib_or_gzip(buffer, len)) {
        ptr.reset(new byteme::ZlibBufferReader(buffer, len, {}));
    } else {
        ptr.reset(new byteme::RawBufferReader(buffer, len));
    }
    return Parser<std::unique_ptr<byteme::Reader>, Index_>(std::move(ptr), options);
}
 
}
 
#endif