GNE.g4 (학습이 더 필요) - 언어 GNE의 ANTLR 4 PGS용 문법 만들다 만 거

GNE.g4

grammar GNE;

// parse rules
//// program
program
    : statement*
    ;

//// statement
statement
    : blockStatement
    | functionStatement
    | traceStatement
    | importStatement
    | exportStatement
    | varStatement
    | exceptionStatement
    | expressionStatement
    ;
blockStatement
    : '{' statement* '}'
    ;
functionStatement
    : K_Identifier '.'
    ;
traceStatement
    : '우리의 목표는, 진행하는 것 그것으로' '.'
    ;
importStatement
    : Import Identifier '.'
    ;
exportStatement
    : Export Identifier '.'
    ;
varStatement
    : Var Identifier '.'
    ;
expressionStatement
    : expression '.'
    ;
exceptionStatement
    : Try statement Catch statement
    ;

//// expression
expression
    : expression ( '+' | '더하기') expression                   # additiveExpression
    | '우리의' expression Josa expression '이것이다'             # assignmentExpression 
    | New Identifier                                            # newExpression
    | expression '(' formalParameter (',' formalParameter)? ')' # callExpression
    | literal                                                   # literalExpression
    | Identifier                                                # identifierExpression
    ;

formalParameter
    : Identifier
    ;
//// lexical rules
literal
    : BooleanLiteral
    | StringLiteral
    | NumericLiteral
    ;

BooleanLiteral
    : True
    | False
    ;
StringLiteral
    : '"' [ㄱ-힣]+ '"'
    | '\'' [ㄱ-힣]+ '\''
    ;
NumericLiteral
    : [0-9]+ ('.' [0-9]+)?
    ;

// scanner rules
Josa
    : '은,'
    | '는,'
    ;
StatementEnd: '.';
True : '친박';
False: '비박';

Var: '공천';
Import: '입당';
Export: '출당';
New: '창조';

Try: '코드 텅텅 빌때까지 한번 해 보세요';
Catch: '예외처리 다 어디 갔냐고';

Identifier
    : [ㄱ-힣]+ // 은, 는, 부분까지 매칭되는 문제 있음 (현재 지식으로 해결 불가)
    | K_Identifier
    ;

K_Identifier
    : 'K-' Identifier
    ;

MultilineComment: '/ㄹ' .*? 'ㄹ/' -> channel(HIDDEN);
WhiteSpaces: [\t\r\n ]+ -> channel(HIDDEN);