log_formatter.hpp

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#ifndef NEFORCE_LOGGING_LOG_FORMATTER_HPP__
#define NEFORCE_LOGGING_LOG_FORMATTER_HPP__

 
#include "NeForce/core/container/vector.hpp"
#include "NeForce/logging/log_event.hpp"
NEFORCE_BEGIN_NAMESPACE__


class NEFORCE_API log_formatter {
private:
    struct part {
        bool is_placeholder; 
        string text;         
 
        part(const bool is_ph, string t) noexcept :
        is_placeholder(is_ph),
        text(_NEFORCE move(t)) {}
 
        ~part() = default;
 
        part(const part&) = default;
        part& operator=(const part&) = default;
 
        part(part&&) noexcept = default;
        part& operator=(part&&) noexcept = default;
    };
    string pattern_;     
    vector<part> parts_; 

    void parse_pattern();

    NEFORCE_NODISCARD string resolve_placeholder(string ph, const log_event& event) const;
 
public:
    explicit log_formatter(string pattern);
 
    ~log_formatter() = default;
 
    log_formatter(const log_formatter&) = default;
    log_formatter& operator=(const log_formatter&) = default;
 
    log_formatter(log_formatter&&) noexcept = default;
    log_formatter& operator=(log_formatter&&) noexcept = default;

    NEFORCE_NODISCARD string format(const log_event& event);
};
 // Logging
 
NEFORCE_END_NAMESPACE__
#endif // NEFORCE_LOGGING_LOG_FORMATTER_HPP__