extract_beg_len    64 ext/strscan/strscan.c static VALUE extract_beg_len _((struct strscanner *p, long beg_i, long len));
extract_beg_len   457 ext/strscan/strscan.c         return extract_beg_len(p, p->prev, p->regs.end[0]);
extract_beg_len   769 ext/strscan/strscan.c     return extract_beg_len(p, p->curr, len);