grammar MiniScript;

: (eol | statement)* EOF

;

eol : NEWLINE;

: (simpleStatement

| ifBlock

| whileBlock

| forBlock

| expressionStatement) eol

;

: singleLineIf

| callStatement

| assignmentStatement

| breakStatement

| continueStatement

| returnStatement

| expressionStatement

;

: IF expression THEN simpleStatement (ELSE simpleStatement)?

;

: IF expression THEN NEWLINE

(eol | statement)*

elseIfStatement*

elseStatement?

END IF

;

: ELSE IF expression THEN NEWLINE

(eol | statement)*

;

: ELSE NEWLINE

(eol | statement)*

;

: WHILE expression NEWLINE

(eol | statement)*

END WHILE

;

: FOR IDENTIFIER IN expression NEWLINE

(eol | statement)*

END FOR

;

: BREAK

;

: CONTINUE

;

: lvalue '=' expression

;

: IDENTIFIER ('.' IDENTIFIER | '[' expression ']')*

;

: FUNCTION paramList? NEWLINE

(eol | statement)*

END FUNCTION

;

: '(' (param (',' param)*)? ')'

;

: IDENTIFIER ('=' expression)?

;

: RETURN expression?

;

: expression '(' argList ')'

| expression argList

;

: expression

;

: literal # literalExpr

| IDENTIFIER # identifierExpr

| '(' expression ')' # parenExpr

| expression '.' IDENTIFIER # dotExpr

| expression '[' expression ']' # indexExpr

| expression '[' expression? ':' expression? ']' # sliceExpr

| '@' IDENTIFIER # funcRefExpr

| expression '(' argList? ')' # functionCallExpr

| NEW expression # newExpr

| (NOT | '-') expression # unaryExpr

| expression '^' expression # powerExpr

| expression ('*' | '/' | '%') expression # multDivExpr

| expression ('+' | '-') expression # addSubExpr

| expression ('<' | '<=' | '>' | '>=' | '==' | '!=') expression # comparisonExpr

| expression (AND | OR) expression # logicalExpr

| functionBlock # functionExpr

;

: expression (',' expression)*

;

: NUMBER # numberLiteral

| (TRUE | FALSE) # boolLiteral

| STRING # stringLiteral

| listLiteral # listLit

| mapLiteral # mapLit

;

: '[' (expression (',' expression)*)? ']'

;

: '{' (mapEntry (',' mapEntry)*)? '}'

;

: expression ':' expression

;

: '//' ~[\r\n]* -> channel(HIDDEN)

;

: [ \t]+ -> channel(HIDDEN)

;

NEWLINE : (';' | '\r'? '\n' | '\r')+;

: [0-9]+ ('.' [0-9]+)?

;

: '"' ( '""' | ~["] )* '"'

IF : 'if';

ELSE : 'else';

WHILE : 'while';

FOR : 'for';

IN : 'in';

FUNCTION: 'function';

RETURN : 'return';

END : 'end';

BREAK : 'break';

CONTINUE: 'continue';

NEW : 'new';

THEN : 'then';

AND : 'and';

OR : 'or';

NOT : 'not';

TRUE : 'true';

FALSE : 'false';