#define ROPT_LOOKBEHIND_SEEN 0x00100
#define ROPT_EVAL_SEEN 0x00200
#define ROPT_TAINTED_SEEN 0x00400
+#define ROPT_ANCH_SBOL 0x00800
/* 0xf800 of reganch is used by PMf_COMPILETIME */
#define REXEC_COPY_STR 1 /* Need to copy the string. */
#define REXEC_CHECKED 2 /* check_substr already checked. */
+#define REXEC_SCREAM 4 /* use scream table. */
#define ReREFCNT_inc(re) ((re && re->refcnt++), re)
#define ReREFCNT_dec(re) pregfree(re)