Yaml.h

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// Copyright 2024 libsese
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// 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 <sese/io/InputStream.h>
#include <sese/io/OutputStream.h>
#include <sese/util/Value.h>
 
#include <queue>
 
namespace sese {
class Yaml {
    using Tokens = std::vector<std::string>;
    using TokensQueue = std::queue<std::tuple<int, Tokens>>;
    using InputStream = io::InputStream;
    using OutputStream = io::OutputStream;
    using Line = std::tuple<int, std::string>;
 
    static Value parseBasic(const std::string &value);
 
    static Value parseObject(TokensQueue &tokens_queue, size_t level);
 
    static Value parseArray(TokensQueue &tokens_queue, size_t level);
 
    static void streamifyObject(io::OutputStream *output, const Value::Dict &dict, size_t level);
 
    static void streamifyArray(io::OutputStream *output, const Value::List &list, size_t level);
 
    static int getSpaceCount(const std::string &line) noexcept;
 
    static Line getLine(InputStream *input) noexcept;
 
    static Tokens tokenizer(const std::string &line) noexcept;
 
    static void writeSpace(size_t count, OutputStream *output) noexcept;
 
public:
 
    static Value parse(io::InputStream *input, size_t level);
 
    static void streamify(io::OutputStream *output, const Value &value);
};
} // namespace sese