CLEAR_ENCLOSE_STATUS 2786 regcomp.c            CLEAR_ENCLOSE_STATUS(node, NST_MARK2);
CLEAR_ENCLOSE_STATUS 2838 regcomp.c      	CLEAR_ENCLOSE_STATUS(node, NST_MARK1);
CLEAR_ENCLOSE_STATUS 2896 regcomp.c            CLEAR_ENCLOSE_STATUS(node, NST_MARK2);
CLEAR_ENCLOSE_STATUS 2961 regcomp.c      	  CLEAR_ENCLOSE_STATUS(node, NST_MARK1);