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Voila!

Welcome to the Voila repository! This repository contains all the necessary documents, design specifications, implementation details and related tools for Voila. Voila is an easy-to-learn programming language that has a simple syntax which makes it perfect for beginners.

Voila is an open source programming language that makes it easy to build simple.

Voila - Language Features:

  • Visualize Compiler Lexer.

  • Visualize Compiler Symbol Table.

  • Visualize Compiler Parser.

  • Visualize Compiler Parse Tree.

  • Visualize Compiler Parse Table.

Voila - Language Definition:

  • Language Delimiter will be defined as “;” as end of line.

  • Boolean: True and False.

  • Blocks will be contained in ‘{’ and ‘}’.

  • Keywords (Reserved Words): ‘#’, ‘;’, ‘for’, ‘while’, ‘if’, ‘elif’, ‘else’, ‘and’, ‘or’, ‘def’ and ‘print’. Identifiers (Variables Name): starts with a letter (A to Z or a to z), lowercase and uppercase letters are distinct, and does not allow punctuation characters such as @, $, and %.

  • Operators: + , - , * , / , **, == , != , < , > , <= , >=.

  • Literals: Integers, Floating Points and Strings.

  • Data Structure: List defined by double brackets ‘[]’.

  • Types may not change after assignment, but values may change.

Voila - Language Grammer:

program
   : statement+
   ;

statement
   : 'if' paren_expr statement
   | 'if' paren_expr statement 'else' statement
   | 'while' paren_expr statement
   | '{' statement* '}'
   | expr ';'
   | ';'
   ;

expr
   : test
   | id '=' expr
   ;

test
   : sum
   | sum '<' sum
   ;

sum
   : term
   | sum '+' term
   | sum '-' term
   ;

term
   : id
   | integer
   | paren_expr
   ;

id
   : STRING
   ;

integer
   : INT
   ;


STRING
   : [A-Za-z][A-Za-z0-9_]*
   ;


INT
   : [0-99999]+
   ;

Contributing

To contribute, please reach me in LinkedIn or Gmail.