NS - Needless Script

Needless Script is a simple language and interpreter for it in python

Description

NS consist of 3 main parts:

• Lexer
  • For analyzing sintaksis of program.
  • Lexer generate list of tokens from program code.
• Parser
  • For analyze the program on the rules of the language.
  • Parser generate inversion polish notation from list of tokens.
• Stack machine
  • for finally executing a code.
  • Stack machine takes the inversion polish notation and execute it

Features

• NS has a minimal standard set of operators, cycles and conditions.
• NS supports two classes:
  • Linked list.
  • Hash set.
• NS supports inputting and printing in console

All rules and definition describe into txt file:

grammar.txt

Launch

To run some NS program from the console, you must enter the following command:

python ns.py program.ns