S_PBEG             52 ext/strscan/strscan.c #define S_PEND(s)  (S_PBEG(s) + S_LEN(s))
S_PBEG             53 ext/strscan/strscan.c #define CURPTR(s) (S_PBEG(s) + (s)->curr)
S_PBEG            149 ext/strscan/strscan.c     return infect(str_new(p, S_PBEG(p) + beg_i, end_i - beg_i), p);
S_PBEG            158 ext/strscan/strscan.c     return infect(str_new(p, S_PBEG(p) + beg_i, len), p);