Regex to match either range or list of numbers -

i need regex match lists of numbers , 1 match ranges of numbers (expressions shall never fail in both cases). ranges shall consist of number, dash, , number (n-n), while lists shall consist of numbers separated comma (n,n,n). here below examples.

ranges:

'1-10' => ok whateverelse => nok (e.g. '1-10 11-20') 

list:

'1,2,3' => ok whateverelse => nok 

and here 2 regular expressions:

1. [0-9]+[\-][0-9]+
2. ([0-9]+,?)+

... have few problems them... example:

when evaluating '1-10', regex 2 matches 1... shouldn't match because string not contain list.

then, when evaluating '1-10 11-14', regex 1 matches 1-10... shouldn't match because string contains more range.

what missing? thanks.

try this:

^((\d+-(\*|\d+))|((\*|\d+)-\d+)|((\d)(,\d)+))$ 

test results:

1-10         ok 1,2,3        ok 1-*          ok *-10         ok 1,2,3 1-10   nok 1,2,3 2,3,4  nok *-*          nok 

visualization of regex:

edit: added wildcard * per op's comment.