This property is needed due to the fact that language lexers may be used to analyze special supersets of regular language grammars i.e. for pattern matches, template parser etc. Code compilers may elect to throw errors when this property is true. Returns true for tokens that are not part of the valid language grammar, however they exist for other reasons, for example - for pattern capture match analysis, or for template processing

public abstract bool IsNonLanguage { get; }

public abstract bool IsNonLanguage { get; }

Public MustOverride ReadOnly Property IsNonLanguage As Boolean 
	Get

Public MustOverride ReadOnly Property IsNonLanguage As Boolean 
	Get

public:
virtual property bool IsNonLanguage {
	bool get () abstract;
}

public:
virtual property bool IsNonLanguage {
	bool get () abstract;
}

abstract IsNonLanguage : bool with get

abstract IsNonLanguage : bool with get