hrdnehndeynhdeisr:hnderi1dtrhdnei
dhrseidhne1rei:dnhdrdners

11111111111:krbhntdhn1eist

p1  [a-z0-9]*
n1  [a-z02-9]+

[a-z0-9]*1[a-z0-9]*:[a-z02-9]+|[a-z02-9]+:[a-z0-9]*1[a-z0-9]*
{p1}1{p1}:{n1}|{n1}:{p1}1{p1}

------------------------------------------

09:40-18:09

09:40|09:41|...|18:09

09:[45][0-9]|1[0-7]:[0-5][0-9]|18:0[0-9]
(09:[45]|1[0-7]:[0-5]|18:0)[0-9]

------------------------------------------------

[a-z0-9]?        onk

{onk}{onk}:{onk}{onk}:{onk}{onk}:{onk}{onk}:

({onk}{onk}:)*{onk}{onk}

{onk}({onk}:{onk})*{onk}

{onk}{onk}(:{onk}{onk})*

[a-z0-9]?[a-z0-9]?(:[a-z0-9]?[a-z0-9]?)*


------------------------------+


0:11:22 (3)
       2:33 (3)
           33:4321 (2)
                  :aa (3)

    1. max m
    2. első