NOX

programming language written in C .

lately i have become intersted in the history of computing and it's relation to mathmatics so i decided to learn both. by creating Nox. nox is a programming language written in C, using tools like bison&flex, and has it's own Virtual stack machine. the end goal of NOX is to support linear optimization problems.

(😅im learning as i go, so if there is any misinformation please contact me/pull request, thanks!)

Build Nox

Linux:

install bison & flex & gcc .( you probaly have them installed 😉)

$ sudo apt-get install bison flex gcc

clone this repository & build

$ git clone https://github.com/abdullahMosibah/NOX.git
$ cd NOX
$ bison -dv NoxBison.y
$ gcc -c NoxBison.tab.c
$ flex NoxLex.l
$ gcc -c lex.yy.c
$ gcc -o nox lex.yy.o NoxBison.tab.o -lm

Now you can run NOX interpreter and start coding

./nox

Or pass in .nox file to the compiler

./nox file_name.nox

NOX syntax

NOX program consists of 2 segments.

declarations : where you declare your variables. commands : where you write commands like if, while etc.

let
    declarations
in
    commands
end

note: in the delarations section you don't need ' ; ' but you do need ' . ' after each line.

commands & keywords.

keywords	usage
read	read x;
write	write x;
integer	integer x,n.
while ,do , end	while x > 1 do skip; end;
if,then,fi	if x > 1 then x := 4; fi;
if,then,else,fi	if x > 1 then x:=4; else x := 111;fi;
skip	skips commands after if,else and while

operators.

operators	name	usage
:=	assignment	x := 1;
>	greater than	x > 1
<	less than	x < 1
=	test equality	x = 1
+	summation	x + 5;
-	Subtraction	x - 5;
*	Multiplication	x * 5;
/	Division	x / 2;
^	power	---

complete example

Fibonacci Series in NOX

let
	integer i,n1,n2,n3,numbers.
in
	read numbers;
	i := 2;
	n1 := 0;
	n2 := 1;
	write n1;
	write n2;

	 while i < numbers
		do
			 n3 := n1 + n2; 
               	         write n3; 
               	         n1 := n2; 
               	         n2 := n3; 
			 i := i +1;
		end;
	
end

How NOX works ?

Release History

• 0.2.1
  • CHANGE: Update docs (module code remains unchanged)
• 0.2.0
  • Work in progress
• 0.1.1 *
• 0.1.0 * *
• 0.0.1 *

TODO

• read & implement the dragon book.
• then determine the purpose of NOX, try to improve the current technology.
• implement our own lexical/synthetic analyzers.

Meta

Abdullah Mosibah – @abdullah_mrajab – abdullah.rm.2020@gmail.com

Distributed under the MIT license. See LICENSE for more information.

Contributing

1. Fork it (https://github.com/abdullahMosibah/NOX/fork)
2. Create your feature branch (git checkout -b feature/fooBar)
3. Commit your changes (git commit -am 'Add some fooBar')
4. Push to the branch (git push origin feature/fooBar)
5. Create a new Pull Request

TODO list

✅Add basic language features ( vars, while, if, else etc.)

⬜Add LP solver glpk into compiling pipeline