Ok, thanks for fast reply.

By doing this challenge i found a way how to cheat every solution. Sorry didn't know what i was doing was cheating in case of this challenge, so pls don't ban me, u can take honor for this challenge from me or something.

Java tests.
Parsing "(((eqbn.)riwfj)((.gud)|(zw))z)":
expected: Str<(((eqbn.)riwfj)((.gud)|(zw))z)>
but was: Str<(((eqbn.)riwfj)((.gud)|(zw))z)>

Java language test going crazy :D
"Input: (-z+0)^7 expected:<[45]z^7>"

I think it should be 0|1(01*0)*1)+ , because if put * at the end it will match "" empty string which is wrong.