gff_reader.hpp

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#ifndef GENESIS_POPULATION_FORMATS_GFF_READER_H_
#define GENESIS_POPULATION_FORMATS_GFF_READER_H_
 
/*
    Genesis - A toolkit for working with phylogenetic data.
    Copyright (C) 2014-2022 Lucas Czech
 
    This program 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, either version 3 of the License, or
    (at your option) any later version.
 
    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 
    Contact:
    Lucas Czech <lczech@carnegiescience.edu>
    Department of Plant Biology, Carnegie Institution For Science
    260 Panama Street, Stanford, CA 94305, USA
*/
 
#include "genesis/population/genome_region.hpp"
#include "genesis/population/genome_region_list.hpp"
#include "genesis/utils/io/input_source.hpp"
#include "genesis/utils/io/input_stream.hpp"
 
#include <string>
#include <utility>
#include <vector>
 
namespace genesis {
namespace population {
 
// =================================================================================================
//     GFF/GTF Reader
// =================================================================================================
 
class GffReader
{
public:
 
    // -------------------------------------------------------------------------
    //     Typedefs and Enums
    // -------------------------------------------------------------------------
 
    // using Attribute = std::pair<std::string, std::string>;
 
    struct Feature
    {
        std::string seqname;
        std::string source;
        std::string feature;
        size_t start;
        size_t end;
        double score;
        char strand;
        signed char frame;
        std::string attributes_group;
        // std::vector<Attribute> attributes;
    };
 
    // -------------------------------------------------------------------------
    //     Constructors and Rule of Five
    // -------------------------------------------------------------------------
 
    GffReader() = default;
    ~GffReader() = default;
 
    GffReader( GffReader const& ) = default;
    GffReader( GffReader&& )      = default;
 
    GffReader& operator= ( GffReader const& ) = default;
    GffReader& operator= ( GffReader&& )      = default;
 
    // ---------------------------------------------------------------------
    //     Reading
    // ---------------------------------------------------------------------
 
    std::vector<Feature> read( std::shared_ptr< utils::BaseInputSource > source ) const;
 
    GenomeRegionList read_as_genome_region_list(
        std::shared_ptr< utils::BaseInputSource > source,
        bool merge = false
    ) const;
 
    void read_as_genome_region_list(
        std::shared_ptr< utils::BaseInputSource > source,
        GenomeRegionList& target,
        bool merge = false
    ) const;
 
    // -------------------------------------------------------------------------
    //     Parsing
    // -------------------------------------------------------------------------
 
    bool parse_line(
        utils::InputStream& input_stream,
        Feature&            feature
    ) const;
 
};
 
} // namespace population
} // namespace genesis
 
#endif // include guard