match_one_pattern  998 grep.c         		h = match_one_pattern(x->u.atom, bol, eol, ctx, &match, 0);
match_one_pattern 1044 grep.c         		if (match_one_pattern(p, bol, eol, ctx, &match, 0))
match_one_pattern 1056 grep.c         	if (!match_one_pattern(p, bol, eol, ctx, &match, eflags))