Pattern formatter optimizations

include/spdlog/details/fmt_helper.h

@@ -26,17 +26,13 @@ inline void append_buf(const fmt::memory_buffer &buf, fmt::memory_buffer &dest)
     dest.append(buf_ptr, buf_ptr + buf.size());
 }
 
-inline void append_int(int n, fmt::memory_buffer &dest)
+template<typename T>
+inline void append_int(T n, fmt::memory_buffer &dest)
 {
     fmt::format_int i(n);
     dest.append(i.data(), i.data() + i.size());
 }
 
-inline void append_size_t(size_t n, fmt::memory_buffer &dest)
-{
-    fmt::format_int i(n);
-    dest.append(i.data(), i.data() + i.size());
-}
 
 inline void append_and_pad2(int n, fmt::memory_buffer &dest)
 {
@@ -64,12 +60,17 @@ inline void append_and_pad3(int n, fmt::memory_buffer &dest)
     }
     if (n > 9) // 10-99
     {
-        dest.push_back('0');
+        dest.push_back('0');		
+		dest.push_back('0' + n / 10);
+		dest.push_back('0' + n % 10);		
+		return;
     }
     else if (n >= 0)
     {
         dest.push_back('0');
         dest.push_back('0');
+		dest.push_back('0' + n);
+		return;
     }
     // negatives (unlikely, but just in case let fmt deal with it)
     else
@@ -77,7 +78,7 @@ inline void append_and_pad3(int n, fmt::memory_buffer &dest)
         fmt::format_to(dest, "{:03}", n);
         return;
     }
-    append_int(n, dest);
+    
 }
 
 inline void append_and_pad6(int n, fmt::memory_buffer &dest)

include/spdlog/formatter.h

@@ -20,28 +20,6 @@ public:
     virtual ~formatter() = default;
     virtual void format(const details::log_msg &msg, fmt::memory_buffer &dest) = 0;
 };
-
-namespace details {
-class flag_formatter;
-}
-
-class pattern_formatter SPDLOG_FINAL : public formatter
-{
-public:
-    explicit pattern_formatter(const std::string &pattern, pattern_time_type pattern_time = pattern_time_type::local,
-        std::string eol = spdlog::details::os::default_eol);
-    pattern_formatter(const pattern_formatter &) = default;
-    pattern_formatter &operator=(const pattern_formatter &) = default;
-    void format(const details::log_msg &msg, fmt::memory_buffer &dest) override;
-
-private:
-    const std::string eol_;
-    const pattern_time_type pattern_time_;
-    std::vector<std::unique_ptr<details::flag_formatter>> formatters_;
-    std::tm get_time(const details::log_msg &msg);
-    void handle_flag(char flag);
-    void compile_pattern(const std::string &pattern);
-};
 } // namespace spdlog
 
 #include "details/pattern_formatter_impl.h"