BEG               963 re.c                       rm->char_offset[i].beg = BEG(i);
BEG               973 re.c                   if (BEG(i) < 0)
BEG               975 re.c                   pairs[num_pos++].byte_pos = BEG(i);
BEG               991 re.c                   if (BEG(i) < 0) {
BEG               997 re.c                   key.byte_pos = BEG(i);
BEG              1183 re.c               if (BEG(i) < 0)
BEG              1219 re.c               if (BEG(i) < 0)
BEG              1254 re.c               if (BEG(i) < 0)
BEG              1293 re.c               return (BEG(nth) != -1);
BEG              1609 re.c               if (BEG(nth) == -1) return Qfalse;
BEG              1630 re.c               start = BEG(nth);
BEG              1666 re.c               if (BEG(0) == -1) return Qnil;
BEG              1667 re.c               str = rb_str_subseq(RMATCH(match)->str, 0, BEG(0));
BEG              1694 re.c               if (BEG(0) == -1) return Qnil;
BEG              1711 re.c               if (BEG(0) == -1) return Qnil;
BEG              1713 re.c               for (i=regs->num_regs-1; BEG(i) == -1 && i > 0; i--)
BEG              3749 re.c           	    rb_enc_str_buf_cat(val, RSTRING_PTR(src), BEG(0), src_enc);
BEG              3758 re.c           	    while (BEG(no) == -1 && no > 0) no--;
BEG              3773 re.c           	    if (BEG(no) == -1) continue;
BEG              3774 re.c           	    rb_enc_str_buf_cat(val, RSTRING_PTR(src)+BEG(no), END(no)-BEG(no), src_enc);
BEG              4271 string.c           start = BEG(nth);
BEG              4570 string.c       	    beg0 = BEG(0);
BEG              4747 string.c       	    beg0 = BEG(0);
BEG              7152 string.c       	    if (start == end && BEG(0) == END(0)) {
BEG              7180 string.c       		if (BEG(idx) == -1) continue;
BEG              7181 string.c       		if (BEG(idx) == END(idx))
BEG              7184 string.c       		    tmp = rb_str_subseq(str, BEG(idx), END(idx)-BEG(idx));
BEG              8165 string.c       	if (BEG(0) == END(0)) {