What is the regex for "Any positive integer, excluding 0"
Sorry to come in late but the OP wants to allow 076 but probably does NOT want to allow 0000000000.
So in this case we want a string of one or more digits containing at least one non-zero. That is
^[0-9]*[1-9][0-9]*$
Try this:
^[1-9]\d*$
...and some padding to exceed 30 character SO answer limit :-).