token #0: (a|b)*abb+c?(ab(c|d)*)?
token #1: [\a-zA-\x5a][a-zA-Z0-9_]*
token #2: [0-9]*
token #3: "xyz*.|+{}\t"
token #4: .
token #5: \n
testing string: abc
abbc
abbcabcccd
bad0934-090abb_zzz
?lkiu0934
xyz*.|+{}	
xyz*.|+{]

matched token #1 :abc
matched token #5 :

matched token #0 :abbc
matched token #5 :

matched token #0 :abbcabcccd
matched token #5 :

matched token #1 :bad0934
matched token #4 :-
matched token #2 :090
matched token #1 :abb_zzz
matched token #5 :

matched token #4 :?
matched token #1 :lkiu0934
matched token #5 :

matched token #3 :xyz*.|+{}	
matched token #5 :

matched token #1 :xyz
matched token #4 :*
matched token #4 :.
matched token #4 :|
matched token #4 :+
matched token #4 :{
matched token #4 :]
matched token #5 :

testing string: abc
abbc
abbcabcccd
bad0934-090abb_zzz
?lkiu0934
xyz*.|+{}	
xyz*.|+{]

matched token #1 :abc
matched token #5 :

matched token #0 :abbc
matched token #5 :

matched token #0 :abbcabcccd
matched token #5 :

matched token #1 :bad0934
matched token #4 :-
matched token #2 :090
matched token #1 :abb_zzz
matched token #5 :

matched token #4 :?
matched token #1 :lkiu0934
matched token #5 :

matched token #3 :xyz*.|+{}	
matched token #5 :

matched token #1 :xyz
matched token #4 :*
matched token #4 :.
matched token #4 :|
matched token #4 :+
matched token #4 :{
matched token #4 :]
matched token #5 :