UCILoader::LoggerTraits Namespace Reference

Predefined logger traits for common customizations. More...

Variables
const LoggerTrait &	Pretty = prettyLoggerInstance
	Trait that formats log messages for human readability.
const LoggerTrait &	IgnoreParser = ignoredParserLoggerInstance
	Trait that filters out messages generated by the parser.
const LoggerTrait &	IgnoreEngine = ignoreEngineLoggerInstance
	Trait that filters out messages received from the engine.
const LoggerTrait &	IgnoreApplication = ignoreApplicationLoggerInstance
	Trait that filters out messages sent to the engine.
const LoggerTrait &	Timestamp = timestampLoggerInstance
	Trait that prepends timestamps to all logged messages.

Detailed Description

Predefined logger traits for common customizations.

The LoggerTraits namespace provides ready-to-use traits that can be applied to loggers to customize their behavior. Traits can be combined using the pipe operator with LoggerBuilder.

Available Traits:

• Pretty: Formats log messages for human readability
• IgnoreParser: Filters out messages from the parser (FromParser direction)
• IgnoreEngine: Filters out messages from the engine (FromEngine direction)
• IgnoreApplication: Filters out messages sent to the engine (ToEngine direction)
• Timestamp: Prepends timestamps to each log message

See also

LoggerBuilder for how to apply traits

Loggers namespace for creating base loggers

Usage Examples:

// Log only engine messages with timestamps
auto logger = (Loggers::toFile("engine.log") 
               | LoggerTraits::IgnoreParser 
               | LoggerTraits::IgnoreApplication
               | LoggerTraits::Timestamp).build();
 
// Pretty-formatted output with all messages
auto logger = (Loggers::toStd() | LoggerTraits::Pretty).build();
 
// As shown in Examples/demo/main.cpp:
auto instance = ChessEngineInstanceBuilder->build(proces, 
                Loggers::toFile("Logs.txt") | LoggerTraits::Pretty);

Variable Documentation

IgnoreApplication

const LoggerTrait & UCILoader::LoggerTraits::IgnoreApplication = ignoreApplicationLoggerInstance

extern

Trait that filters out messages sent to the engine.

Messages with direction ToEngine will be ignored.

IgnoreEngine

const LoggerTrait & UCILoader::LoggerTraits::IgnoreEngine = ignoreEngineLoggerInstance

extern

Trait that filters out messages received from the engine.

Messages with direction FromEngine will be ignored.

IgnoreParser

const LoggerTrait & UCILoader::LoggerTraits::IgnoreParser = ignoredParserLoggerInstance

extern

Trait that filters out messages generated by the parser.

Messages with direction FromParser will be ignored.

Pretty

const LoggerTrait & UCILoader::LoggerTraits::Pretty = prettyLoggerInstance

extern

Trait that formats log messages for human readability.

The Pretty trait enhances message formatting with clear direction indicators and structured output suitable for reading log files or console output.

Timestamp

const LoggerTrait & UCILoader::LoggerTraits::Timestamp = timestampLoggerInstance

extern

Trait that prepends timestamps to all logged messages.

Useful for tracking the timing of UCI protocol exchanges.