Problem with re module

Question

I am creating a compiler and I also knew how to use re but when i run code and input:
public static var = "hello" "world"

Code:

import re

STRING='(\'[^\']*\')|("(.[^"])*")'
ID='[a-zA-Z_][a-z0-9A-Z_]*'
INT='\d+'
FLOAT='\\d+\\.\\d+'
QUALIFIER='(static|global)?'
SECURITY='(public|private|protected)?'
OP='(\\+|-|*|/|%|^)'
EXP='((('+STRING+'|'+ID+')((\\s)?('+STRING+'|'+ID+'))*|((('+INT+'|'+FLOAT+'|'+ID+')('+OP+'('+INT+'|'+ID+'|'+FLOAT+'))*)'
ASSIGN='('+OP+')?='

STMT='\\s'+SECURITY+'\\s*'+QUALIFIER+'\\s*'+ASSIGN+'\\s*'+EXP+'\\s*'

while True:
print('\n')
print(re.match(STMT,input('Enter : ')))

Errror on re module occured
(It is py error not a regex error)

Please help me , What to do to solve this problem

You can get the error why?

Link to code =>
https://code.sololearn.com/cVmc3pI5qIOk/?ref=app

Answer 1

Hello Vishal gupta ,

It seems the problem is into your regex patterns OP and EXP.
I have solved it and now it is working without error.

https://code.sololearn.com/ca3g1mfk4uPq/#py

Now your turn to find out match string.
Happy Coding ....!!!!