diff options
Diffstat (limited to 'deps/include/spdlog/pattern_formatter-inl.h')
| -rw-r--r-- | deps/include/spdlog/pattern_formatter-inl.h | 1338 |
1 files changed, 1338 insertions, 0 deletions
diff --git a/deps/include/spdlog/pattern_formatter-inl.h b/deps/include/spdlog/pattern_formatter-inl.h new file mode 100644 index 0000000..c51f6ed --- /dev/null +++ b/deps/include/spdlog/pattern_formatter-inl.h @@ -0,0 +1,1338 @@ +// 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>
+
+#ifndef SPDLOG_NO_TLS
+ #include <spdlog/mdc.h>
+#endif
+
+#include <spdlog/fmt/fmt.h>
+#include <spdlog/formatter.h>
+
+#include <algorithm>
+#include <array>
+#include <cctype>
+#include <chrono>
+#include <cstring>
+#include <ctime>
+#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", "Sep", "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()) {
+ ScopedPadder p(0, padinfo_, dest);
+ 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()) {
+ ScopedPadder p(0, padinfo_, dest);
+ 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()) {
+ ScopedPadder p(0, padinfo_, dest);
+ 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()) {
+ ScopedPadder p(0, padinfo_, dest);
+ 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()) {
+ ScopedPadder p(0, padinfo_, dest);
+ 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_;
+};
+
+// Class for formatting Mapped Diagnostic Context (MDC) in log messages.
+// Example: [logger-name] [info] [mdc_key_1:mdc_value_1 mdc_key_2:mdc_value_2] some message
+#ifndef SPDLOG_NO_TLS
+template <typename ScopedPadder>
+class mdc_formatter : public flag_formatter {
+public:
+ explicit mdc_formatter(padding_info padinfo)
+ : flag_formatter(padinfo) {}
+
+ void format(const details::log_msg &, const std::tm &, memory_buf_t &dest) override {
+ auto &mdc_map = mdc::get_context();
+ if (mdc_map.empty()) {
+ ScopedPadder p(0, padinfo_, dest);
+ return;
+ } else {
+ format_mdc(mdc_map, dest);
+ }
+ }
+
+ void format_mdc(const mdc::mdc_map_t &mdc_map, memory_buf_t &dest) {
+ auto last_element = --mdc_map.end();
+ for (auto it = mdc_map.begin(); it != mdc_map.end(); ++it) {
+ auto &pair = *it;
+ const auto &key = pair.first;
+ const auto &value = pair.second;
+ size_t content_size = key.size() + value.size() + 1; // 1 for ':'
+
+ if (it != last_element) {
+ content_size++; // 1 for ' '
+ }
+
+ ScopedPadder p(content_size, padinfo_, dest);
+ fmt_helper::append_string_view(key, dest);
+ fmt_helper::append_string_view(":", dest);
+ fmt_helper::append_string_view(value, dest);
+ if (it != last_element) {
+ fmt_helper::append_string_view(" ", dest);
+ }
+ }
+ }
+};
+#endif
+
+// 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(' ');
+ }
+
+#ifndef SPDLOG_NO_TLS
+ // add mdc if present
+ auto &mdc_map = mdc::get_context();
+ if (!mdc_map.empty()) {
+ dest.push_back('[');
+ mdc_formatter_.format_mdc(mdc_map, dest);
+ dest.push_back(']');
+ dest.push_back(' ');
+ }
+#endif
+ // 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_;
+
+#ifndef SPDLOG_NO_TLS
+ mdc_formatter<null_scoped_padder> mdc_formatter_{padding_info{}};
+#endif
+
+};
+
+} // 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),
+ need_localtime_(false),
+ 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),
+ need_localtime_(true),
+ 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();
+ }
+ auto cloned = details::make_unique<pattern_formatter>(pattern_, pattern_time_type_, eol_,
+ std::move(cloned_custom_formatters));
+ cloned->need_localtime(need_localtime_);
+#if defined(__GNUC__) && __GNUC__ < 5
+ return std::move(cloned);
+#else
+ return cloned;
+#endif
+}
+
+SPDLOG_INLINE void pattern_formatter::format(const details::log_msg &msg, memory_buf_t &dest) {
+ if (need_localtime_) {
+ const 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);
+ need_localtime_ = false;
+ compile_pattern_(pattern_);
+}
+
+SPDLOG_INLINE void pattern_formatter::need_localtime(bool need) { need_localtime_ = need; }
+
+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));
+ need_localtime_ = true;
+ 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));
+ need_localtime_ = true;
+ break;
+
+ case ('A'): // short weekday
+ formatters_.push_back(details::make_unique<details::A_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('b'):
+ case ('h'): // month
+ formatters_.push_back(details::make_unique<details::b_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('B'): // short month
+ formatters_.push_back(details::make_unique<details::B_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('c'): // datetime
+ formatters_.push_back(details::make_unique<details::c_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('C'): // year 2 digits
+ formatters_.push_back(details::make_unique<details::C_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('Y'): // year 4 digits
+ formatters_.push_back(details::make_unique<details::Y_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('D'):
+ case ('x'): // datetime MM/DD/YY
+ formatters_.push_back(details::make_unique<details::D_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('m'): // month 1-12
+ formatters_.push_back(details::make_unique<details::m_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('d'): // day of month 1-31
+ formatters_.push_back(details::make_unique<details::d_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('H'): // hours 24
+ formatters_.push_back(details::make_unique<details::H_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('I'): // hours 12
+ formatters_.push_back(details::make_unique<details::I_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('M'): // minutes
+ formatters_.push_back(details::make_unique<details::M_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('S'): // seconds
+ formatters_.push_back(details::make_unique<details::S_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ 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));
+ need_localtime_ = true;
+ break;
+
+ case ('r'): // 12 hour clock 02:55:02 pm
+ formatters_.push_back(details::make_unique<details::r_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('R'): // 24-hour HH:MM time
+ formatters_.push_back(details::make_unique<details::R_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('T'):
+ case ('X'): // ISO 8601 time format (HH:MM:SS)
+ formatters_.push_back(details::make_unique<details::T_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ break;
+
+ case ('z'): // timezone
+ formatters_.push_back(details::make_unique<details::z_formatter<Padder>>(padding));
+ need_localtime_ = true;
+ 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;
+
+#ifndef SPDLOG_NO_TLS // mdc formatter requires TLS support
+ case ('&'):
+ formatters_.push_back(details::make_unique<details::mdc_formatter<Padder>>(padding));
+ break;
+#endif
+
+ 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
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