e there is no point
even considering the possibility of backtracking into the repeated digits. For
DFA matching, this means that only one possible match is found. If you really
do want multiple matches in such cases, either use an ungreedy repeat
("a\d+?") or set the PCRE2_NO_AUTO_POSSESS option when compiling.
</P>
<P>
There are a number of features of PCRE2 regular expressions that are not
supported or behave differently in the alternative matching function. Those
that are not supported cause an error if 