func CreateParser()

in parser.go [34:85]

• 46 lines of code
• 5 McCabe index (conditional complexity)

func CreateParser(initialState string, evtHandler AnsiEventHandler, opts ...Option) *AnsiParser {
	ap := &AnsiParser{
		eventHandler: evtHandler,
		context:      &ansiContext{},
	}
	for _, o := range opts {
		o(ap)
	}

	if isDebugEnv := os.Getenv(LogEnv); isDebugEnv == "1" {
		logFile, _ := os.Create("ansiParser.log")
		logger := log.New(logFile, "", log.LstdFlags)
		if ap.logf != nil {
			l := ap.logf
			ap.logf = func(s string, v ...interface{}) {
				l(s, v...)
				logger.Printf(s, v...)
			}
		} else {
			ap.logf = logger.Printf
		}
	}

	if ap.logf == nil {
		ap.logf = func(string, ...interface{}) {}
	}

	ap.csiEntry = csiEntryState{baseState{name: "CsiEntry", parser: ap}}
	ap.csiParam = csiParamState{baseState{name: "CsiParam", parser: ap}}
	ap.dcsEntry = dcsEntryState{baseState{name: "DcsEntry", parser: ap}}
	ap.escape = escapeState{baseState{name: "Escape", parser: ap}}
	ap.escapeIntermediate = escapeIntermediateState{baseState{name: "EscapeIntermediate", parser: ap}}
	ap.error = errorState{baseState{name: "Error", parser: ap}}
	ap.ground = groundState{baseState{name: "Ground", parser: ap}}
	ap.oscString = oscStringState{baseState{name: "OscString", parser: ap}}

	ap.stateMap = []state{
		ap.csiEntry,
		ap.csiParam,
		ap.dcsEntry,
		ap.escape,
		ap.escapeIntermediate,
		ap.error,
		ap.ground,
		ap.oscString,
	}

	ap.currState = getState(initialState, ap.stateMap)

	ap.logf("CreateParser: parser %p", ap)
	return ap
}