document.hpp

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#pragma once
 
#include <filesystem>
#include <functional>
#include <optional>
#include <string>
#include <string_view>
#include <vector>
 
namespace notex {

class Document {
public:
    using LinePredicate = std::function<bool(const std::string&)>;

    static Document load(const std::filesystem::path& path);

    const std::vector<std::string>& lines() const noexcept { return lines_; }

    std::vector<std::size_t> find_all(const LinePredicate& predicate) const;

    std::size_t find_unique(const LinePredicate& predicate,
                            std::string_view description) const;

    std::optional<std::size_t> find_last(const LinePredicate& predicate) const;

    void insert_line(std::size_t index, std::string text);

    void insert_lines(std::size_t index, std::vector<std::string> new_lines);

    void remove_line(std::size_t index);

    void set_documentclass_option(
        std::string_view option,
        const std::vector<std::string>& mutually_exclusive_group);

    void save() const;
 
private:
    Document(std::filesystem::path path, std::vector<std::string> lines);
 
    std::filesystem::path path_;
    std::vector<std::string> lines_;
};
 
}  // namespace notex