NST_CLEN_FIXED   2360 mbstring/oniguruma/regcomp.c 	    SET_EFFECT_STATUS(node, NST_CLEN_FIXED);
NST_CLEN_FIXED    163 mbstring/oniguruma/regparse.h #define IS_EFFECT_CLEN_FIXED(en)       (((en)->state & NST_CLEN_FIXED)    != 0)