ebnf.egnf

<Program> ::= <Class>+

<Class> ::= "class" <Ident> "{" <Members> "}"

<Members> 
	::= <Function>
    | <Declare>
    | <Members> ";" <Members>

<Function> ::= <Type> <Ident> "(" <Args> ")" <Statment>

<Args> 
   ::= <Declare>
   | <Args> "," <Args>

<Type> 
	::= "int"
   | "float"
   | "string"
   | "char"


<Ident> 
	::= <AChar> <Char>+

<Statment>
	::= "if" <Paren_Expr> <Statment>
   | "if" <Paren_Expr> <Statment> "else" <Statment>
   | <Declare>
   | <Declare> "=" <Expr>
   | <Ident> "=" <Expr>
   | "while" <Paren_Expr> <Statment>
   | "for" "(" <Declare> ";" <Expr> ";" <Statment> ")" <Statment>
   | "{" <Sequence> "}"
   | "iflush"
   | "oflush"
   | "oread"
   | "return" <Expr>

<Sequence>
	::= <Statment> ";" <Statment>

<Declare> ::= <Type> <Ident>

<Paren_Expr> ::= "(" <Expr> ")"

<Expr>
	::= <String>
   | <Int>
   | <Byte>
   | <Ident>
   | <Expr> <Op> <Expr>

<Op>
   ::= "+"
   | "-"
   | "*"
   | "/"
   | "=="
   | "!="

<String> ::= "\"" <Wchar>+ "\""

<Int> ::= <NChar>+

<WChar> 
   ::= <Char>
   | " "
<Char> 
   ::= <NChar>
   | <AChar>
<NChar> ::= [0-9]

<AChar>
   ::= [a-z]
   | [A-z]