# have to search a little differently for nested tags
                        # making sure that an ending tag belonging to
                        # a nested opening tag is not processed as the ending
                        # tag for the current opening tag.
                        # In case i sounded awkward, here's a little diagram:
                        #
                        # <cfif>     <--- this tag
                        #    <cfif>  <--- nested open tag
                        #    </cfif> <--- end tag for the nested open tag
                        # </cfif>    <--- end tag for this tag (the one that has
                        #                 to be picked up)
                        #

                        # Actual example:
                        # @chunks =
                        #   . . . . . .
                        # 5  "<cfif bool eq 1>\cJ\cI "           <--- chk_i, found_i
                        # 6  "<cfif foo = bar>\cJ\cI\cI  "
                        # 7  "<cfif bar = foo>\cJ\cI\cI  "
                        # 8  "</cfif>\cJ\cI "
                        # 9  "</cfif>\cJ\cI\cI  \cJ\cI BOOL is true!\cJ"
                        # 10  "<cfelse>\cJ\cIBOOL is false!\cJ"
                        # 11  '</cfif>                           <--- after: found_i
                        my $opening_tag = $rules->{tag_start}[0] . $tag_name;
                        my $nested = 0; # count of nested open tags found.


                        while ((($chunks[++$found_i] =~ m/^$closing_tag/)
                                ? ($nested > 0 ? $nested-- : 0)
                                : ($chunks[$found_i] =~ m/^$opening_tag/   ? ++$nested : 1))
                               && $found_i < @chunks) {}