gawk/gawk-3.0.6/regex.c

3862 re_search (bufp, string, size, startpos, range, regs)  in re_search()  argument
3865      int size, startpos, range;
3868   return re_search_2 (bufp, NULL, 0, string, size, startpos, range,
3895 re_search_2 (bufp, string1, size1, string2, size2, startpos, range, regs, stop)  in re_search_2()  argument
3899      int startpos;
3908   int endpos = startpos + range;
3911   if (startpos < 0 || startpos > total_size)
3918     range = 0 - startpos;
3920     range = total_size - startpos;
3926       if (startpos > 0)
3937       range = PT - startpos;
3955       if (fastmap && startpos < total_size && !bufp->can_be_null)
3964               if (startpos < size1 && startpos + range >= size1)
3965                 lim = range - (size1 - startpos);
3967 	      d = (startpos >= size1 ? string2 - size1 : string1) + startpos;
3997 	      startpos += irange - range;
4001 	      register char c = (size1 == 0 || startpos >= size1
4002                                  ? string2[startpos - size1]
4003                                  : string1[startpos]);
4011       if (range >= 0 && startpos == total_size && fastmap
4016 				 startpos, regs, stop);
4024 	return startpos;
4034 	  const char *d = ((startpos >= size1 ? string2 - size1 : string1)
4035 			   + startpos);
4040 	    startpos += n;
4044           range--, startpos++;
4048           range++, startpos--;
4052 	    if (startpos < size1)
4053 	      s = string1, d = string1 + startpos;
4055 	      s = string2, d = string2 + startpos - size1;
4059 		startpos--;
4071 		range++, startpos--;