#How to run -
$python3 sbml.py <inputfile>

<inputfile> file is your program

#Files included -
1. sbml.py, main file
2. sbmllexer.py, lexer file, contains token definitions
3. sbmlparser.py, parser file, containes grammer rules

Parser is not 100% bug free and many production rules are created 
in a adhoc way.