Emitter.h

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// Emitter.h
//
// Copyright (c) 2008, 2009, 2015-2016 Michael Imamura.
//
// Licensed under GrokkSoft HoverRace SourceCode License v1.0(the "License");
// you may not use this file except in compliance with the License.
//
// A copy of the license should have been attached to the package from which
// you have taken this file. If you can not find the license you can not use
// this file.
//
//
// The author makes no representations about the suitability of
// this software for any purpose.  It is provided "as is" "AS IS",
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
// implied.
//
// See the License for the specific language governing permissions
// and limitations under the License.

#pragma once

#include <exception>
#include <string>

#include <yaml.h>

#include "../OS.h"
#include "YamlExn.h"

namespace HoverRace {
namespace Util {
namespace yaml {

class EmitterExn : public YamlExn
{
    using SUPER = YamlExn;

public:
    EmitterExn() : SUPER() { }
    EmitterExn(const char *const &msg) : SUPER(msg)  { }
    virtual ~EmitterExn() noexcept { }
};

class Emitter
{
private:
    Emitter() = delete;
public:
    Emitter(FILE *file, bool versionDirective = true);
    Emitter(std::ostream &os, bool versionDirective = true);
    Emitter(std::string &s, bool versionDirective = true);
    virtual ~Emitter();

protected:
    void InitEmitter();
    void InitStream(bool versionDirective);

public:
    void StartMap();
    void MapKey(const std::string &s);
    void EndMap();

    void StartSeq();
    void EndSeq();

    void Value(const std::string &val);
    void Value(const char *val);
    void Value(bool val);
    void Value(int val);
    void Value(double val);
    void Value(float val);
    void Value(const HoverRace::Util::OS::path_t &path);

    template<class T>
    void Value(const T &val)
    {
        Value(boost::lexical_cast<std::string>(val));
    }

private:
    yaml_emitter_t emitter;
};

}  // namespace yaml
}  // namespace Util
}  // namespace HoverRace