fixed length and upper case log level tags

include/spdlog/common.h

@@ -81,7 +81,10 @@ typedef enum
     off = 6
 } level_enum;
 
-static const char* level_names[] { "trace", "debug", "info",  "warning", "error", "critical", "off" };
+#if !defined(SPDLOG_LEVEL_NAMES)
+#define SPDLOG_LEVEL_NAMES { "trace", "debug", "info",  "warning", "error", "critical", "off" };
+#endif
+static const char* level_names[] SPDLOG_LEVEL_NAMES
 
 static const char* short_level_names[] { "T", "D", "I", "W", "E", "C", "O" };
 

include/spdlog/tweakme.h

@@ -132,3 +132,10 @@
 //
 // #define SPDLOG_ENABLE_MESSAGE_COUNTER
 ///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to enable user defined tag names
+//
+// #define SPDLOG_LEVEL_NAMES  { "   TRACE", "   DEBUG", "    INFO",
+// " WARNING", "   ERROR", "CRITICAL", "OFF" };
+///////////////////////////////////////////////////////////////////////////////