refactor(#26): parser types now pass all test cases

[fami-fish]

Test cases:

%1
%4
%9272
%[1]
%[]
%[3, 8, 99, 3:7]
%{7:}
%{9, [2:]}
%[{1}]
%{[{[]}]}
%Hello
%9999999999999
%cRazY
%;r2929
%{4, 2};r2
%8;r82
%Position;r2
%[1:];r7


%902385u9035y97w
%_289748
%0000000
%[1:0]
%[999999999:000000000000000000000000000000]
%{lfj}
%0
%{,,,,,,,,}
%[,,,,,,,,]
%{20, 2 ]
%{20::::}
%[::::]
%{:4}
%{8;r8:42}
%{}
%[;r29]
%383;kf-
%r
%;r980054230994204937850476047603760703476340763706347089175720520257450
%{8
%[{[{{[]}]}]
%;r
%[2 3:5]
%{{[{]]]]][}
%[]][]}[[[}[]]]{{{{]}}}}[{{][]]}}[}}
%r22313132
%[;r2
%r9283w938
%{8:kssll}
%{8:r2}
%9148130572475669346783467809767067067506370670356730576

[slbsh]

lgmt :>