The Cure language

Not only for ISP RAS but for everyone :)
While I am writing the code you can listen to this playlist

Description

C-like language, keywords can be changed in the file.
Developed as part of a learning task for ISP RAS.

Key words of the language

System operation	Description
the_cure funcName()	function definition
a_strange_day (){};	if
boys_do_not_cry{};	else
last_dance ... ;	return
lullaby(){};	while
the_cure M(){ last_dance 0;};	int main(){return 0;}
close_to_me( num );	in var
to_the_sky(var or num);	out var
cut_her();	cos
secrets();	sin
lovesong();	log
forest a = 10;	int a = 10;
_aaa();	call expr of func aaa
equal	==

Now, you can use free variable only in () block or after +/-/*/^/div
FACTORIAL(5)

  the_cure  M ( ){
    forest n = 5;
    forest res = _fact ( n );
    to_the_sky( res );
    last_dance (0);
 } ;

 the_cure  fact ( n ){
     a_strange_day  ( n equal 1 ){
         last_dance 1 ;
     } ;
     forest m = _fact ( n - 1 );
     forest k = n * m ;
     last_dance ( k );
  } ;

 $

FACTORIAL(ASM)

tmain:
push 5
pop [0]
push [0]
push [0]
call ffact
pop [1]
pop [0]
push [1]
out
hlt 

ffact:
pop [2]
push 1
push [2]
je tifCond0
jmp tifTempCond1
tifCond0:
push 1
ret 
jmp tifTempCond1
tifTempCond1:
push [2]
push 1
push [2]
sub
call ffact
pop [3]
pop [2]
push [3]
push [2]
mul
pop [4]
push [4]
ret 

Structure

• Frontend project
  • frontend/
• Backend project
  • backend/
• GravizDump project
  • dumps/
• Examples project
  • examples/

EXAMPLES

See

RUN

./the_cure_language Input Output
Input: file with language code
Output: assembly language file

cmake .
make
./the_cure_language gr1.txt gr1Out.txt

//Due to my stack-mashine https://github.com/vvdvortsova/cpu_assembler_disassembler
cmake .
make
./asm asm.txt masm 
./stack_machine masm

Grammar

Grammar:
G ::= D $
D ::= 'def' F '(' E ')' '{' Q '}' ';'
Q ::= S { ';' S } *
S ::= C|E|W|R
C ::= 'if' '(' B ')' '{' Q '}' { | 'else' '{' Q '}' } // if or if-else
B ::= E [<>|&] E
R ::= 'return' E
W ::= 'while' '(' E ')' { Q }
E ::= T{['+', '-']T}*| A
A ::= Var = E
T ::= POW{['*', '/']POW}*
POW ::= P{['^']P}*
P ::= '(' E ')' | N | F '(' E ')'
F ::= _[a-zA-z]*
N ::= ['0'-'9']+

Warnings

There are some rules(fitches/bugs/I'll improve it somehow):

There are no global variables!
Put space after variables
To be succeeded put space everywhere :)
And put space befor new func:)
And put space befor and after variable
Now it is without optimization
Please don't laugh too much
Backend рабочий
Frontend тоже рабочий
Не сделала пример с квадратным уравнением, ибо надо добавить в язык корень(sqrt)
TODO: fix if-else, add sqrt, docs and testing of course
TODO: оптимизатор для getE
Да, с запятыми переборщила
Put comma after fuction def and do not foget about $
PS: Sorry for mix c/c++, because I just started writing in c++.
    The code will improve.

Documentation

You can watch documentation by opening docs/html/index.html in browser.

OS

KUbuntu 18.04