cpp-compiler-with-js

A JavaScript Program to lexical and syntax analyse C++ program. It Uses various Regular Expressions to create tokens for keywords, identifiers, strings, functions etc.
Note: a compiler consists of several sections. this project includes lexical analysis and syntax analysis.

How to use?

open index.html with your browser and then open the console or run it with node or another way.
now you should see all the results in the console.
you can see the token table at the top of the console and then logs at the bottom.
add your input in initial Input at the top of the lexicalAnalyzer.js and then see the logs as results

how it's work?

in the lexicalAnalyzer, an input convet to a table of tokens.
then in the syntaxAnalyzer this table entered as input and tries to parse the input by using the defined functions and login of grammers and Finite Automata Construction and etc ...

Project structure

this project consists of 2 main files. LexicalAnalyzer.js and syntaxAnalyzer.
grammer.md contains the project grammer that you need to understand the project structure.

Lexical analyzer

LexicalAnalyzer.js
lexical analysis is the process of converting a sequence of characters (such as in a computer program or web page) into a sequence of tokens. read more: LexicalAnalyzer

Syntax analyzer

syntax.js Syntax analysis or parsing is the second phase of a compiler.A syntax analyzer or parser takes the input from a lexical analyzer in the form of token streams. The parser analyzes the source code (token stream) against the production rules to detect any errors in the code. The output of this phase is a parse tree. read more: Syntax Analyzers

Grammer

grammer.txt this file was created to understand the grammer used in syntaxAnalyzer.

classes

bufferClass.js for input buffering
lineTrackeClass.js for tracking the line of the code for saving in the token table
tokenClass.js for creating the tokens\

functions

isReserved() check if the lexeme is not a reserved word
isCharacterALetter() check if the charachter is a letter
isCharacterADigit() check if the charachter is a digit
etc

contribute

This project is no longer being developed and coding has stopped.this repository has been coded in a short time. if you see an error or if you can help us improve and develop this project, please contact me via mohammadsjh@gmail.com

please note that

This is currently very alpha. Only a few basic language features are implemented.

ToDo

1. if Else
2. While loops
3. do while loops
4. for Loops
5. functions
6. define
7. statments