minimum length of subsequent +

[benibela]

Subsequent + imply a minimal length of the string.

These match, but should not:

 writeln(TFLRE.Create('^(?:\d+\d+\d+)$', []).Find('12'));
 writeln(TFLRE.Create('^(?:\d+\d+\p{Nd}\d+)$', []).Find('123'));