https://github.com/c71n93/language

Compiler for primitive programming language
https://github.com/c71n93/language

compiler

Last synced: about 7 hours ago
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Compiler for primitive programming language

• Host: GitHub
• URL: https://github.com/c71n93/language
• Owner: c71n93
• Created: 2022-01-12T17:59:55.000Z (about 3 years ago)
• Default Branch: master
• Last Pushed: 2022-03-11T12:35:01.000Z (almost 3 years ago)
• Last Synced: 2024-11-15T16:48:28.999Z (2 months ago)
• Topics: compiler
• Language: C++
• Homepage:
• Size: 1.06 MB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# С(ringe)

The *С(ringe)* language is a simplified copy of the *C* language. 

The source code is compiled via AST into assembly code, that can be execute by [Processor](https://github.com/RomanKorostinskiy/Processor).

## С(ringe) grammar:

I used [EBNF](https://en.wikipedia.org/wiki/Extended_Backus%E2%80%93Naur_form) syntax to describe grammar of my language.

**Grammar for recursive descent:**

```

G ::= St+, '\0' ;

St ::= [Cond | As | E | FuncDef], ';' ;

Blk ::= '{', St+, '}' ;

Cond ::= 'if', '(', E, ')', Blk, ['else', '(', ')', Blk] ;

As ::= Vas, '=', E ;

FuncDef ::= 'def', '!', Func, Blk ;

Func ::= Name, '(', ')' ;

StdFunc ::= ('print' | 'sqrt' | 'scan'), '(', E, ')' ;

E ::= T ((+ | -), T)* ;

T ::= P ((* | /), P)* ;

P ::= ('(', E, ')') | N | Var | StdFunc | Func ;

N ::= FloatingPointNumber ;

Var ::= Name ;

```

**Grammar for tokenizer:**

```

Name   ::= Letter, (Letter | Digit | "_")* ;

Letter ::= ('a'-'z') | ('A'-'Z') ;

```

```

FloatingPointNumber ::= ['-'], ('0' | NaturalNumber), '.', NaturalNumber ;

NaturalNumber       ::= DigitExcludingZero, Digit* ;

Digit               ::= '0' | DigitExcludingZero ;

DigitExcludingZero  ::= ('1'-'9');

```

## How to use Language:

**Input** - is a program in С(ringe) language. You should pass a path to source code in the first argument of programm.

**Output** - is a assembly code. You should pass a path to place where you want to see your assembly code in the second argument of programm.