private SymbolicRegexBuilder() { this.epsilon = SymbolicRegexNode <S> .MkEpsilon(this); this.startAnchor = SymbolicRegexNode <S> .MkStartAnchor(this); this.endAnchor = SymbolicRegexNode <S> .MkEndAnchor(this); this.eolAnchor = SymbolicRegexNode <S> .MkEolAnchor(this); this.bolAnchor = SymbolicRegexNode <S> .MkBolAnchor(this); //---------- this.nodeCache[this.epsilon] = this.epsilon; this.nodeCache[this.startAnchor] = this.startAnchor; this.nodeCache[this.endAnchor] = this.endAnchor; this.nodeCache[this.eolAnchor] = this.eolAnchor; this.nodeCache[this.bolAnchor] = this.bolAnchor; //--- this.fullSet = SymbolicRegexSet <S> .MkFullSet(this); this.emptySet = SymbolicRegexSet <S> .MkEmptySet(this); }