1396 lines
41 KiB
C++
1396 lines
41 KiB
C++
// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
|
|
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
|
|
|
|
#pragma once
|
|
|
|
#ifndef SPDLOG_HEADER_ONLY
|
|
# include <spdlog/pattern_formatter.h>
|
|
#endif
|
|
|
|
#include <spdlog/details/fmt_helper.h>
|
|
#include <spdlog/details/log_msg.h>
|
|
#include <spdlog/details/os.h>
|
|
#include <spdlog/fmt/fmt.h>
|
|
#include <spdlog/formatter.h>
|
|
|
|
#include <algorithm>
|
|
#include <array>
|
|
#include <chrono>
|
|
#include <ctime>
|
|
#include <cctype>
|
|
#include <cstring>
|
|
#include <iterator>
|
|
#include <memory>
|
|
#include <mutex>
|
|
#include <string>
|
|
#include <thread>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
namespace spdlog {
|
|
namespace details {
|
|
|
|
///////////////////////////////////////////////////////////////////////
|
|
// name & level pattern appender
|
|
///////////////////////////////////////////////////////////////////////
|
|
|
|
class scoped_padder
|
|
{
|
|
public:
|
|
scoped_padder(size_t wrapped_size, const padding_info &padinfo, memory_buf_t &dest)
|
|
: padinfo_(padinfo)
|
|
, dest_(dest)
|
|
{
|
|
remaining_pad_ = static_cast<long>(padinfo.width_) - static_cast<long>(wrapped_size);
|
|
if (remaining_pad_ <= 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (padinfo_.side_ == padding_info::pad_side::left)
|
|
{
|
|
pad_it(remaining_pad_);
|
|
remaining_pad_ = 0;
|
|
}
|
|
else if (padinfo_.side_ == padding_info::pad_side::center)
|
|
{
|
|
auto half_pad = remaining_pad_ / 2;
|
|
auto reminder = remaining_pad_ & 1;
|
|
pad_it(half_pad);
|
|
remaining_pad_ = half_pad + reminder; // for the right side
|
|
}
|
|
}
|
|
|
|
template<typename T>
|
|
static unsigned int count_digits(T n)
|
|
{
|
|
return fmt_helper::count_digits(n);
|
|
}
|
|
|
|
~scoped_padder()
|
|
{
|
|
if (remaining_pad_ >= 0)
|
|
{
|
|
pad_it(remaining_pad_);
|
|
}
|
|
else if (padinfo_.truncate_)
|
|
{
|
|
long new_size = static_cast<long>(dest_.size()) + remaining_pad_;
|
|
dest_.resize(static_cast<size_t>(new_size));
|
|
}
|
|
}
|
|
|
|
private:
|
|
void pad_it(long count)
|
|
{
|
|
fmt_helper::append_string_view(string_view_t(spaces_.data(), static_cast<size_t>(count)), dest_);
|
|
}
|
|
|
|
const padding_info &padinfo_;
|
|
memory_buf_t &dest_;
|
|
long remaining_pad_;
|
|
string_view_t spaces_{" ", 64};
|
|
};
|
|
|
|
struct null_scoped_padder
|
|
{
|
|
null_scoped_padder(size_t /*wrapped_size*/, const padding_info & /*padinfo*/, memory_buf_t & /*dest*/) {}
|
|
|
|
template<typename T>
|
|
static unsigned int count_digits(T /* number */)
|
|
{
|
|
return 0;
|
|
}
|
|
};
|
|
|
|
template<typename ScopedPadder>
|
|
class name_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit name_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
ScopedPadder p(msg.logger_name.size(), padinfo_, dest);
|
|
fmt_helper::append_string_view(msg.logger_name, dest);
|
|
}
|
|
};
|
|
|
|
// log level appender
|
|
template<typename ScopedPadder>
|
|
class level_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit level_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
const string_view_t &level_name = level::to_string_view(msg.level);
|
|
ScopedPadder p(level_name.size(), padinfo_, dest);
|
|
fmt_helper::append_string_view(level_name, dest);
|
|
}
|
|
};
|
|
|
|
// short log level appender
|
|
template<typename ScopedPadder>
|
|
class short_level_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit short_level_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
string_view_t level_name{level::to_short_c_str(msg.level)};
|
|
ScopedPadder p(level_name.size(), padinfo_, dest);
|
|
fmt_helper::append_string_view(level_name, dest);
|
|
}
|
|
};
|
|
|
|
///////////////////////////////////////////////////////////////////////
|
|
// Date time pattern appenders
|
|
///////////////////////////////////////////////////////////////////////
|
|
|
|
static const char *ampm(const tm &t)
|
|
{
|
|
return t.tm_hour >= 12 ? "PM" : "AM";
|
|
}
|
|
|
|
static int to12h(const tm &t)
|
|
{
|
|
return t.tm_hour > 12 ? t.tm_hour - 12 : t.tm_hour;
|
|
}
|
|
|
|
// Abbreviated weekday name
|
|
static std::array<const char *, 7> days{{"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"}};
|
|
|
|
template<typename ScopedPadder>
|
|
class a_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit a_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
string_view_t field_value{days[static_cast<size_t>(tm_time.tm_wday)]};
|
|
ScopedPadder p(field_value.size(), padinfo_, dest);
|
|
fmt_helper::append_string_view(field_value, dest);
|
|
}
|
|
};
|
|
|
|
// Full weekday name
|
|
static std::array<const char *, 7> full_days{{"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"}};
|
|
|
|
template<typename ScopedPadder>
|
|
class A_formatter : public flag_formatter
|
|
{
|
|
public:
|
|
explicit A_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
string_view_t field_value{full_days[static_cast<size_t>(tm_time.tm_wday)]};
|
|
ScopedPadder p(field_value.size(), padinfo_, dest);
|
|
fmt_helper::append_string_view(field_value, dest);
|
|
}
|
|
};
|
|
|
|
// Abbreviated month
|
|
static const std::array<const char *, 12> months{{"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sept", "Oct", "Nov", "Dec"}};
|
|
|
|
template<typename ScopedPadder>
|
|
class b_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit b_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
string_view_t field_value{months[static_cast<size_t>(tm_time.tm_mon)]};
|
|
ScopedPadder p(field_value.size(), padinfo_, dest);
|
|
fmt_helper::append_string_view(field_value, dest);
|
|
}
|
|
};
|
|
|
|
// Full month name
|
|
static const std::array<const char *, 12> full_months{
|
|
{"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"}};
|
|
|
|
template<typename ScopedPadder>
|
|
class B_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit B_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
string_view_t field_value{full_months[static_cast<size_t>(tm_time.tm_mon)]};
|
|
ScopedPadder p(field_value.size(), padinfo_, dest);
|
|
fmt_helper::append_string_view(field_value, dest);
|
|
}
|
|
};
|
|
|
|
// Date and time representation (Thu Aug 23 15:35:46 2014)
|
|
template<typename ScopedPadder>
|
|
class c_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit c_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 24;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
|
|
fmt_helper::append_string_view(days[static_cast<size_t>(tm_time.tm_wday)], dest);
|
|
dest.push_back(' ');
|
|
fmt_helper::append_string_view(months[static_cast<size_t>(tm_time.tm_mon)], dest);
|
|
dest.push_back(' ');
|
|
fmt_helper::append_int(tm_time.tm_mday, dest);
|
|
dest.push_back(' ');
|
|
// time
|
|
|
|
fmt_helper::pad2(tm_time.tm_hour, dest);
|
|
dest.push_back(':');
|
|
fmt_helper::pad2(tm_time.tm_min, dest);
|
|
dest.push_back(':');
|
|
fmt_helper::pad2(tm_time.tm_sec, dest);
|
|
dest.push_back(' ');
|
|
fmt_helper::append_int(tm_time.tm_year + 1900, dest);
|
|
}
|
|
};
|
|
|
|
// year - 2 digit
|
|
template<typename ScopedPadder>
|
|
class C_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit C_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 2;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::pad2(tm_time.tm_year % 100, dest);
|
|
}
|
|
};
|
|
|
|
// Short MM/DD/YY date, equivalent to %m/%d/%y 08/23/01
|
|
template<typename ScopedPadder>
|
|
class D_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit D_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 10;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
|
|
fmt_helper::pad2(tm_time.tm_mon + 1, dest);
|
|
dest.push_back('/');
|
|
fmt_helper::pad2(tm_time.tm_mday, dest);
|
|
dest.push_back('/');
|
|
fmt_helper::pad2(tm_time.tm_year % 100, dest);
|
|
}
|
|
};
|
|
|
|
// year - 4 digit
|
|
template<typename ScopedPadder>
|
|
class Y_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit Y_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 4;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::append_int(tm_time.tm_year + 1900, dest);
|
|
}
|
|
};
|
|
|
|
// month 1-12
|
|
template<typename ScopedPadder>
|
|
class m_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit m_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 2;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::pad2(tm_time.tm_mon + 1, dest);
|
|
}
|
|
};
|
|
|
|
// day of month 1-31
|
|
template<typename ScopedPadder>
|
|
class d_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit d_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 2;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::pad2(tm_time.tm_mday, dest);
|
|
}
|
|
};
|
|
|
|
// hours in 24 format 0-23
|
|
template<typename ScopedPadder>
|
|
class H_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit H_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 2;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::pad2(tm_time.tm_hour, dest);
|
|
}
|
|
};
|
|
|
|
// hours in 12 format 1-12
|
|
template<typename ScopedPadder>
|
|
class I_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit I_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 2;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::pad2(to12h(tm_time), dest);
|
|
}
|
|
};
|
|
|
|
// minutes 0-59
|
|
template<typename ScopedPadder>
|
|
class M_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit M_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 2;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::pad2(tm_time.tm_min, dest);
|
|
}
|
|
};
|
|
|
|
// seconds 0-59
|
|
template<typename ScopedPadder>
|
|
class S_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit S_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 2;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::pad2(tm_time.tm_sec, dest);
|
|
}
|
|
};
|
|
|
|
// milliseconds
|
|
template<typename ScopedPadder>
|
|
class e_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit e_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
auto millis = fmt_helper::time_fraction<std::chrono::milliseconds>(msg.time);
|
|
const size_t field_size = 3;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::pad3(static_cast<uint32_t>(millis.count()), dest);
|
|
}
|
|
};
|
|
|
|
// microseconds
|
|
template<typename ScopedPadder>
|
|
class f_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit f_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
auto micros = fmt_helper::time_fraction<std::chrono::microseconds>(msg.time);
|
|
|
|
const size_t field_size = 6;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::pad6(static_cast<size_t>(micros.count()), dest);
|
|
}
|
|
};
|
|
|
|
// nanoseconds
|
|
template<typename ScopedPadder>
|
|
class F_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit F_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
auto ns = fmt_helper::time_fraction<std::chrono::nanoseconds>(msg.time);
|
|
const size_t field_size = 9;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::pad9(static_cast<size_t>(ns.count()), dest);
|
|
}
|
|
};
|
|
|
|
// seconds since epoch
|
|
template<typename ScopedPadder>
|
|
class E_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit E_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 10;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
auto duration = msg.time.time_since_epoch();
|
|
auto seconds = std::chrono::duration_cast<std::chrono::seconds>(duration).count();
|
|
fmt_helper::append_int(seconds, dest);
|
|
}
|
|
};
|
|
|
|
// AM/PM
|
|
template<typename ScopedPadder>
|
|
class p_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit p_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 2;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::append_string_view(ampm(tm_time), dest);
|
|
}
|
|
};
|
|
|
|
// 12 hour clock 02:55:02 pm
|
|
template<typename ScopedPadder>
|
|
class r_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit r_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 11;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
|
|
fmt_helper::pad2(to12h(tm_time), dest);
|
|
dest.push_back(':');
|
|
fmt_helper::pad2(tm_time.tm_min, dest);
|
|
dest.push_back(':');
|
|
fmt_helper::pad2(tm_time.tm_sec, dest);
|
|
dest.push_back(' ');
|
|
fmt_helper::append_string_view(ampm(tm_time), dest);
|
|
}
|
|
};
|
|
|
|
// 24-hour HH:MM time, equivalent to %H:%M
|
|
template<typename ScopedPadder>
|
|
class R_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit R_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 5;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
|
|
fmt_helper::pad2(tm_time.tm_hour, dest);
|
|
dest.push_back(':');
|
|
fmt_helper::pad2(tm_time.tm_min, dest);
|
|
}
|
|
};
|
|
|
|
// ISO 8601 time format (HH:MM:SS), equivalent to %H:%M:%S
|
|
template<typename ScopedPadder>
|
|
class T_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit T_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 8;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
|
|
fmt_helper::pad2(tm_time.tm_hour, dest);
|
|
dest.push_back(':');
|
|
fmt_helper::pad2(tm_time.tm_min, dest);
|
|
dest.push_back(':');
|
|
fmt_helper::pad2(tm_time.tm_sec, dest);
|
|
}
|
|
};
|
|
|
|
// ISO 8601 offset from UTC in timezone (+-HH:MM)
|
|
template<typename ScopedPadder>
|
|
class z_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit z_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
z_formatter() = default;
|
|
z_formatter(const z_formatter &) = delete;
|
|
z_formatter &operator=(const z_formatter &) = delete;
|
|
|
|
void format(const details::log_msg &msg, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
const size_t field_size = 6;
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
|
|
auto total_minutes = get_cached_offset(msg, tm_time);
|
|
bool is_negative = total_minutes < 0;
|
|
if (is_negative)
|
|
{
|
|
total_minutes = -total_minutes;
|
|
dest.push_back('-');
|
|
}
|
|
else
|
|
{
|
|
dest.push_back('+');
|
|
}
|
|
|
|
fmt_helper::pad2(total_minutes / 60, dest); // hours
|
|
dest.push_back(':');
|
|
fmt_helper::pad2(total_minutes % 60, dest); // minutes
|
|
}
|
|
|
|
private:
|
|
log_clock::time_point last_update_{std::chrono::seconds(0)};
|
|
int offset_minutes_{0};
|
|
|
|
int get_cached_offset(const log_msg &msg, const std::tm &tm_time)
|
|
{
|
|
// refresh every 10 seconds
|
|
if (msg.time - last_update_ >= std::chrono::seconds(10))
|
|
{
|
|
offset_minutes_ = os::utc_minutes_offset(tm_time);
|
|
last_update_ = msg.time;
|
|
}
|
|
return offset_minutes_;
|
|
}
|
|
};
|
|
|
|
// Thread id
|
|
template<typename ScopedPadder>
|
|
class t_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit t_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
const auto field_size = ScopedPadder::count_digits(msg.thread_id);
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::append_int(msg.thread_id, dest);
|
|
}
|
|
};
|
|
|
|
// Current pid
|
|
template<typename ScopedPadder>
|
|
class pid_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit pid_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
const auto pid = static_cast<uint32_t>(details::os::pid());
|
|
auto field_size = ScopedPadder::count_digits(pid);
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::append_int(pid, dest);
|
|
}
|
|
};
|
|
|
|
template<typename ScopedPadder>
|
|
class v_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit v_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
ScopedPadder p(msg.payload.size(), padinfo_, dest);
|
|
fmt_helper::append_string_view(msg.payload, dest);
|
|
}
|
|
};
|
|
|
|
class ch_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit ch_formatter(char ch)
|
|
: ch_(ch)
|
|
{}
|
|
|
|
void format(const details::log_msg &, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
dest.push_back(ch_);
|
|
}
|
|
|
|
private:
|
|
char ch_;
|
|
};
|
|
|
|
// aggregate user chars to display as is
|
|
class aggregate_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
aggregate_formatter() = default;
|
|
|
|
void add_ch(char ch)
|
|
{
|
|
str_ += ch;
|
|
}
|
|
void format(const details::log_msg &, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
fmt_helper::append_string_view(str_, dest);
|
|
}
|
|
|
|
private:
|
|
std::string str_;
|
|
};
|
|
|
|
// mark the color range. expect it to be in the form of "%^colored text%$"
|
|
class color_start_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit color_start_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
msg.color_range_start = dest.size();
|
|
}
|
|
};
|
|
|
|
class color_stop_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit color_stop_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
msg.color_range_end = dest.size();
|
|
}
|
|
};
|
|
|
|
// print source location
|
|
template<typename ScopedPadder>
|
|
class source_location_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit source_location_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
if (msg.source.empty())
|
|
{
|
|
return;
|
|
}
|
|
|
|
size_t text_size;
|
|
if (padinfo_.enabled())
|
|
{
|
|
// calc text size for padding based on "filename:line"
|
|
text_size = std::char_traits<char>::length(msg.source.filename) + ScopedPadder::count_digits(msg.source.line) + 1;
|
|
}
|
|
else
|
|
{
|
|
text_size = 0;
|
|
}
|
|
|
|
ScopedPadder p(text_size, padinfo_, dest);
|
|
fmt_helper::append_string_view(msg.source.filename, dest);
|
|
dest.push_back(':');
|
|
fmt_helper::append_int(msg.source.line, dest);
|
|
}
|
|
};
|
|
|
|
// print source filename
|
|
template<typename ScopedPadder>
|
|
class source_filename_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit source_filename_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
if (msg.source.empty())
|
|
{
|
|
return;
|
|
}
|
|
size_t text_size = padinfo_.enabled() ? std::char_traits<char>::length(msg.source.filename) : 0;
|
|
ScopedPadder p(text_size, padinfo_, dest);
|
|
fmt_helper::append_string_view(msg.source.filename, dest);
|
|
}
|
|
};
|
|
|
|
template<typename ScopedPadder>
|
|
class short_filename_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit short_filename_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
#ifdef _MSC_VER
|
|
# pragma warning(push)
|
|
# pragma warning(disable : 4127) // consider using 'if constexpr' instead
|
|
#endif // _MSC_VER
|
|
static const char *basename(const char *filename)
|
|
{
|
|
// if the size is 2 (1 character + null terminator) we can use the more efficient strrchr
|
|
// the branch will be elided by optimizations
|
|
if (sizeof(os::folder_seps) == 2)
|
|
{
|
|
const char *rv = std::strrchr(filename, os::folder_seps[0]);
|
|
return rv != nullptr ? rv + 1 : filename;
|
|
}
|
|
else
|
|
{
|
|
const std::reverse_iterator<const char *> begin(filename + std::strlen(filename));
|
|
const std::reverse_iterator<const char *> end(filename);
|
|
|
|
const auto it = std::find_first_of(begin, end, std::begin(os::folder_seps), std::end(os::folder_seps) - 1);
|
|
return it != end ? it.base() : filename;
|
|
}
|
|
}
|
|
#ifdef _MSC_VER
|
|
# pragma warning(pop)
|
|
#endif // _MSC_VER
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
if (msg.source.empty())
|
|
{
|
|
return;
|
|
}
|
|
auto filename = basename(msg.source.filename);
|
|
size_t text_size = padinfo_.enabled() ? std::char_traits<char>::length(filename) : 0;
|
|
ScopedPadder p(text_size, padinfo_, dest);
|
|
fmt_helper::append_string_view(filename, dest);
|
|
}
|
|
};
|
|
|
|
template<typename ScopedPadder>
|
|
class source_linenum_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit source_linenum_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
if (msg.source.empty())
|
|
{
|
|
return;
|
|
}
|
|
|
|
auto field_size = ScopedPadder::count_digits(msg.source.line);
|
|
ScopedPadder p(field_size, padinfo_, dest);
|
|
fmt_helper::append_int(msg.source.line, dest);
|
|
}
|
|
};
|
|
|
|
// print source funcname
|
|
template<typename ScopedPadder>
|
|
class source_funcname_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit source_funcname_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
if (msg.source.empty())
|
|
{
|
|
return;
|
|
}
|
|
size_t text_size = padinfo_.enabled() ? std::char_traits<char>::length(msg.source.funcname) : 0;
|
|
ScopedPadder p(text_size, padinfo_, dest);
|
|
fmt_helper::append_string_view(msg.source.funcname, dest);
|
|
}
|
|
};
|
|
|
|
// print elapsed time since last message
|
|
template<typename ScopedPadder, typename Units>
|
|
class elapsed_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
using DurationUnits = Units;
|
|
|
|
explicit elapsed_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
, last_message_time_(log_clock::now())
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override
|
|
{
|
|
auto delta = (std::max)(msg.time - last_message_time_, log_clock::duration::zero());
|
|
auto delta_units = std::chrono::duration_cast<DurationUnits>(delta);
|
|
last_message_time_ = msg.time;
|
|
auto delta_count = static_cast<size_t>(delta_units.count());
|
|
auto n_digits = static_cast<size_t>(ScopedPadder::count_digits(delta_count));
|
|
ScopedPadder p(n_digits, padinfo_, dest);
|
|
fmt_helper::append_int(delta_count, dest);
|
|
}
|
|
|
|
private:
|
|
log_clock::time_point last_message_time_;
|
|
};
|
|
|
|
// Full info formatter
|
|
// pattern: [%Y-%m-%d %H:%M:%S.%e] [%n] [%l] [%s:%#] %v
|
|
class full_formatter final : public flag_formatter
|
|
{
|
|
public:
|
|
explicit full_formatter(padding_info padinfo)
|
|
: flag_formatter(padinfo)
|
|
{}
|
|
|
|
void format(const details::log_msg &msg, const std::tm &tm_time, memory_buf_t &dest) override
|
|
{
|
|
using std::chrono::duration_cast;
|
|
using std::chrono::milliseconds;
|
|
using std::chrono::seconds;
|
|
|
|
// cache the date/time part for the next second.
|
|
auto duration = msg.time.time_since_epoch();
|
|
auto secs = duration_cast<seconds>(duration);
|
|
|
|
if (cache_timestamp_ != secs || cached_datetime_.size() == 0)
|
|
{
|
|
cached_datetime_.clear();
|
|
cached_datetime_.push_back('[');
|
|
fmt_helper::append_int(tm_time.tm_year + 1900, cached_datetime_);
|
|
cached_datetime_.push_back('-');
|
|
|
|
fmt_helper::pad2(tm_time.tm_mon + 1, cached_datetime_);
|
|
cached_datetime_.push_back('-');
|
|
|
|
fmt_helper::pad2(tm_time.tm_mday, cached_datetime_);
|
|
cached_datetime_.push_back(' ');
|
|
|
|
fmt_helper::pad2(tm_time.tm_hour, cached_datetime_);
|
|
cached_datetime_.push_back(':');
|
|
|
|
fmt_helper::pad2(tm_time.tm_min, cached_datetime_);
|
|
cached_datetime_.push_back(':');
|
|
|
|
fmt_helper::pad2(tm_time.tm_sec, cached_datetime_);
|
|
cached_datetime_.push_back('.');
|
|
|
|
cache_timestamp_ = secs;
|
|
}
|
|
dest.append(cached_datetime_.begin(), cached_datetime_.end());
|
|
|
|
auto millis = fmt_helper::time_fraction<milliseconds>(msg.time);
|
|
fmt_helper::pad3(static_cast<uint32_t>(millis.count()), dest);
|
|
dest.push_back(']');
|
|
dest.push_back(' ');
|
|
|
|
// append logger name if exists
|
|
if (msg.logger_name.size() > 0)
|
|
{
|
|
dest.push_back('[');
|
|
fmt_helper::append_string_view(msg.logger_name, dest);
|
|
dest.push_back(']');
|
|
dest.push_back(' ');
|
|
}
|
|
|
|
dest.push_back('[');
|
|
// wrap the level name with color
|
|
msg.color_range_start = dest.size();
|
|
// fmt_helper::append_string_view(level::to_c_str(msg.level), dest);
|
|
fmt_helper::append_string_view(level::to_string_view(msg.level), dest);
|
|
msg.color_range_end = dest.size();
|
|
dest.push_back(']');
|
|
dest.push_back(' ');
|
|
|
|
// add source location if present
|
|
if (!msg.source.empty())
|
|
{
|
|
dest.push_back('[');
|
|
const char *filename = details::short_filename_formatter<details::null_scoped_padder>::basename(msg.source.filename);
|
|
fmt_helper::append_string_view(filename, dest);
|
|
dest.push_back(':');
|
|
fmt_helper::append_int(msg.source.line, dest);
|
|
dest.push_back(']');
|
|
dest.push_back(' ');
|
|
}
|
|
// fmt_helper::append_string_view(msg.msg(), dest);
|
|
fmt_helper::append_string_view(msg.payload, dest);
|
|
}
|
|
|
|
private:
|
|
std::chrono::seconds cache_timestamp_{0};
|
|
memory_buf_t cached_datetime_;
|
|
};
|
|
|
|
} // namespace details
|
|
|
|
SPDLOG_INLINE pattern_formatter::pattern_formatter(
|
|
std::string pattern, pattern_time_type time_type, std::string eol, custom_flags custom_user_flags)
|
|
: pattern_(std::move(pattern))
|
|
, eol_(std::move(eol))
|
|
, pattern_time_type_(time_type)
|
|
, last_log_secs_(0)
|
|
, custom_handlers_(std::move(custom_user_flags))
|
|
{
|
|
std::memset(&cached_tm_, 0, sizeof(cached_tm_));
|
|
compile_pattern_(pattern_);
|
|
}
|
|
|
|
// use by default full formatter for if pattern is not given
|
|
SPDLOG_INLINE pattern_formatter::pattern_formatter(pattern_time_type time_type, std::string eol)
|
|
: pattern_("%+")
|
|
, eol_(std::move(eol))
|
|
, pattern_time_type_(time_type)
|
|
, last_log_secs_(0)
|
|
{
|
|
std::memset(&cached_tm_, 0, sizeof(cached_tm_));
|
|
formatters_.push_back(details::make_unique<details::full_formatter>(details::padding_info{}));
|
|
}
|
|
|
|
SPDLOG_INLINE std::unique_ptr<formatter> pattern_formatter::clone() const
|
|
{
|
|
custom_flags cloned_custom_formatters;
|
|
for (auto &it : custom_handlers_)
|
|
{
|
|
cloned_custom_formatters[it.first] = it.second->clone();
|
|
}
|
|
return details::make_unique<pattern_formatter>(pattern_, pattern_time_type_, eol_, std::move(cloned_custom_formatters));
|
|
}
|
|
|
|
SPDLOG_INLINE void pattern_formatter::format(const details::log_msg &msg, memory_buf_t &dest)
|
|
{
|
|
auto secs = std::chrono::duration_cast<std::chrono::seconds>(msg.time.time_since_epoch());
|
|
if (secs != last_log_secs_)
|
|
{
|
|
cached_tm_ = get_time_(msg);
|
|
last_log_secs_ = secs;
|
|
}
|
|
|
|
for (auto &f : formatters_)
|
|
{
|
|
f->format(msg, cached_tm_, dest);
|
|
}
|
|
// write eol
|
|
details::fmt_helper::append_string_view(eol_, dest);
|
|
}
|
|
|
|
SPDLOG_INLINE void pattern_formatter::set_pattern(std::string pattern)
|
|
{
|
|
pattern_ = std::move(pattern);
|
|
compile_pattern_(pattern_);
|
|
}
|
|
|
|
SPDLOG_INLINE std::tm pattern_formatter::get_time_(const details::log_msg &msg)
|
|
{
|
|
if (pattern_time_type_ == pattern_time_type::local)
|
|
{
|
|
return details::os::localtime(log_clock::to_time_t(msg.time));
|
|
}
|
|
return details::os::gmtime(log_clock::to_time_t(msg.time));
|
|
}
|
|
|
|
template<typename Padder>
|
|
SPDLOG_INLINE void pattern_formatter::handle_flag_(char flag, details::padding_info padding)
|
|
{
|
|
// process custom flags
|
|
auto it = custom_handlers_.find(flag);
|
|
if (it != custom_handlers_.end())
|
|
{
|
|
auto custom_handler = it->second->clone();
|
|
custom_handler->set_padding_info(padding);
|
|
formatters_.push_back(std::move(custom_handler));
|
|
return;
|
|
}
|
|
|
|
// process built-in flags
|
|
switch (flag)
|
|
{
|
|
case ('+'): // default formatter
|
|
formatters_.push_back(details::make_unique<details::full_formatter>(padding));
|
|
break;
|
|
|
|
case 'n': // logger name
|
|
formatters_.push_back(details::make_unique<details::name_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case 'l': // level
|
|
formatters_.push_back(details::make_unique<details::level_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case 'L': // short level
|
|
formatters_.push_back(details::make_unique<details::short_level_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('t'): // thread id
|
|
formatters_.push_back(details::make_unique<details::t_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('v'): // the message text
|
|
formatters_.push_back(details::make_unique<details::v_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('a'): // weekday
|
|
formatters_.push_back(details::make_unique<details::a_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('A'): // short weekday
|
|
formatters_.push_back(details::make_unique<details::A_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('b'):
|
|
case ('h'): // month
|
|
formatters_.push_back(details::make_unique<details::b_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('B'): // short month
|
|
formatters_.push_back(details::make_unique<details::B_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('c'): // datetime
|
|
formatters_.push_back(details::make_unique<details::c_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('C'): // year 2 digits
|
|
formatters_.push_back(details::make_unique<details::C_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('Y'): // year 4 digits
|
|
formatters_.push_back(details::make_unique<details::Y_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('D'):
|
|
case ('x'): // datetime MM/DD/YY
|
|
formatters_.push_back(details::make_unique<details::D_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('m'): // month 1-12
|
|
formatters_.push_back(details::make_unique<details::m_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('d'): // day of month 1-31
|
|
formatters_.push_back(details::make_unique<details::d_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('H'): // hours 24
|
|
formatters_.push_back(details::make_unique<details::H_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('I'): // hours 12
|
|
formatters_.push_back(details::make_unique<details::I_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('M'): // minutes
|
|
formatters_.push_back(details::make_unique<details::M_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('S'): // seconds
|
|
formatters_.push_back(details::make_unique<details::S_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('e'): // milliseconds
|
|
formatters_.push_back(details::make_unique<details::e_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('f'): // microseconds
|
|
formatters_.push_back(details::make_unique<details::f_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('F'): // nanoseconds
|
|
formatters_.push_back(details::make_unique<details::F_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('E'): // seconds since epoch
|
|
formatters_.push_back(details::make_unique<details::E_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('p'): // am/pm
|
|
formatters_.push_back(details::make_unique<details::p_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('r'): // 12 hour clock 02:55:02 pm
|
|
formatters_.push_back(details::make_unique<details::r_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('R'): // 24-hour HH:MM time
|
|
formatters_.push_back(details::make_unique<details::R_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('T'):
|
|
case ('X'): // ISO 8601 time format (HH:MM:SS)
|
|
formatters_.push_back(details::make_unique<details::T_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('z'): // timezone
|
|
formatters_.push_back(details::make_unique<details::z_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('P'): // pid
|
|
formatters_.push_back(details::make_unique<details::pid_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('^'): // color range start
|
|
formatters_.push_back(details::make_unique<details::color_start_formatter>(padding));
|
|
break;
|
|
|
|
case ('$'): // color range end
|
|
formatters_.push_back(details::make_unique<details::color_stop_formatter>(padding));
|
|
break;
|
|
|
|
case ('@'): // source location (filename:filenumber)
|
|
formatters_.push_back(details::make_unique<details::source_location_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('s'): // short source filename - without directory name
|
|
formatters_.push_back(details::make_unique<details::short_filename_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('g'): // full source filename
|
|
formatters_.push_back(details::make_unique<details::source_filename_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('#'): // source line number
|
|
formatters_.push_back(details::make_unique<details::source_linenum_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('!'): // source funcname
|
|
formatters_.push_back(details::make_unique<details::source_funcname_formatter<Padder>>(padding));
|
|
break;
|
|
|
|
case ('%'): // % char
|
|
formatters_.push_back(details::make_unique<details::ch_formatter>('%'));
|
|
break;
|
|
|
|
case ('u'): // elapsed time since last log message in nanos
|
|
formatters_.push_back(details::make_unique<details::elapsed_formatter<Padder, std::chrono::nanoseconds>>(padding));
|
|
break;
|
|
|
|
case ('i'): // elapsed time since last log message in micros
|
|
formatters_.push_back(details::make_unique<details::elapsed_formatter<Padder, std::chrono::microseconds>>(padding));
|
|
break;
|
|
|
|
case ('o'): // elapsed time since last log message in millis
|
|
formatters_.push_back(details::make_unique<details::elapsed_formatter<Padder, std::chrono::milliseconds>>(padding));
|
|
break;
|
|
|
|
case ('O'): // elapsed time since last log message in seconds
|
|
formatters_.push_back(details::make_unique<details::elapsed_formatter<Padder, std::chrono::seconds>>(padding));
|
|
break;
|
|
|
|
default: // Unknown flag appears as is
|
|
auto unknown_flag = details::make_unique<details::aggregate_formatter>();
|
|
|
|
if (!padding.truncate_)
|
|
{
|
|
unknown_flag->add_ch('%');
|
|
unknown_flag->add_ch(flag);
|
|
formatters_.push_back((std::move(unknown_flag)));
|
|
}
|
|
// fix issue #1617 (prev char was '!' and should have been treated as funcname flag instead of truncating flag)
|
|
// spdlog::set_pattern("[%10!] %v") => "[ main] some message"
|
|
// spdlog::set_pattern("[%3!!] %v") => "[mai] some message"
|
|
else
|
|
{
|
|
padding.truncate_ = false;
|
|
formatters_.push_back(details::make_unique<details::source_funcname_formatter<Padder>>(padding));
|
|
unknown_flag->add_ch(flag);
|
|
formatters_.push_back((std::move(unknown_flag)));
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Extract given pad spec (e.g. %8X, %=8X, %-8!X, %8!X, %=8!X, %-8!X, %+8!X)
|
|
// Advance the given it pass the end of the padding spec found (if any)
|
|
// Return padding.
|
|
SPDLOG_INLINE details::padding_info pattern_formatter::handle_padspec_(std::string::const_iterator &it, std::string::const_iterator end)
|
|
{
|
|
using details::padding_info;
|
|
using details::scoped_padder;
|
|
const size_t max_width = 64;
|
|
if (it == end)
|
|
{
|
|
return padding_info{};
|
|
}
|
|
|
|
padding_info::pad_side side;
|
|
switch (*it)
|
|
{
|
|
case '-':
|
|
side = padding_info::pad_side::right;
|
|
++it;
|
|
break;
|
|
case '=':
|
|
side = padding_info::pad_side::center;
|
|
++it;
|
|
break;
|
|
default:
|
|
side = details::padding_info::pad_side::left;
|
|
break;
|
|
}
|
|
|
|
if (it == end || !std::isdigit(static_cast<unsigned char>(*it)))
|
|
{
|
|
return padding_info{}; // no padding if no digit found here
|
|
}
|
|
|
|
auto width = static_cast<size_t>(*it) - '0';
|
|
for (++it; it != end && std::isdigit(static_cast<unsigned char>(*it)); ++it)
|
|
{
|
|
auto digit = static_cast<size_t>(*it) - '0';
|
|
width = width * 10 + digit;
|
|
}
|
|
|
|
// search for the optional truncate marker '!'
|
|
bool truncate;
|
|
if (it != end && *it == '!')
|
|
{
|
|
truncate = true;
|
|
++it;
|
|
}
|
|
else
|
|
{
|
|
truncate = false;
|
|
}
|
|
|
|
return details::padding_info{std::min<size_t>(width, max_width), side, truncate};
|
|
}
|
|
|
|
SPDLOG_INLINE void pattern_formatter::compile_pattern_(const std::string &pattern)
|
|
{
|
|
auto end = pattern.end();
|
|
std::unique_ptr<details::aggregate_formatter> user_chars;
|
|
formatters_.clear();
|
|
for (auto it = pattern.begin(); it != end; ++it)
|
|
{
|
|
if (*it == '%')
|
|
{
|
|
if (user_chars) // append user chars found so far
|
|
{
|
|
formatters_.push_back(std::move(user_chars));
|
|
}
|
|
|
|
auto padding = handle_padspec_(++it, end);
|
|
|
|
if (it != end)
|
|
{
|
|
if (padding.enabled())
|
|
{
|
|
handle_flag_<details::scoped_padder>(*it, padding);
|
|
}
|
|
else
|
|
{
|
|
handle_flag_<details::null_scoped_padder>(*it, padding);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
else // chars not following the % sign should be displayed as is
|
|
{
|
|
if (!user_chars)
|
|
{
|
|
user_chars = details::make_unique<details::aggregate_formatter>();
|
|
}
|
|
user_chars->add_ch(*it);
|
|
}
|
|
}
|
|
if (user_chars) // append raw chars found so far
|
|
{
|
|
formatters_.push_back(std::move(user_chars));
|
|
}
|
|
}
|
|
} // namespace spdlog
|