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);
}