New: Generic best effort option for syslog parsers

options.go

@@ -1,9 +1,19 @@
 package syslog
 
-// WithListener returns a generic option for syslog parsers.
+// WithListener returns a generic option that sets the emit function for syslog parsers.
 func WithListener(f ParserListener) ParserOption {
 	return func(p Parser) Parser {
 		p.WithListener(f)
 		return p
 	}
 }
+
+// WithBestEffort returns a generic options that enables best effort mode for syslog parsers.
+//
+// When passed to a parser it tries to recover as much of the syslog messages as possible.
+func WithBestEffort() ParserOption {
+	return func(p Parser) Parser {
+		p.WithBestEffort()
+		return p
+	}
+}

syslog.go

@@ -17,13 +17,15 @@ type MachineOption func(m Machine) Machine
 
 // BestEfforter is an interface that wraps the HasBestEffort method.
 type BestEfforter interface {
+	WithBestEffort()
 	HasBestEffort() bool
 }
 
 // Parser is an interface that wraps the Parse method.
 type Parser interface {
 	Parse(r io.Reader)
 	WithListener(ParserListener)
+	BestEfforter
 }
 
 // ParserOption represent an option for Parser instances.