Sintaxis de JScript

JScript syntax:

Program -> Statements
Statements -> Statement...
Block -> '{' Statements '}'
ImportStmt -> IMPORT (String/,)...
VarStmt -> VAR (VarDecl/',')...
VarDecl -> Ident [Array] [InitValue]
Array -> '[' (ArrayDim/',')... ']'
ArrayDim -> Expression
InitValue -> '=' Expression
Expression -> SimpleExpression [RelOp SimpleExpression]...
SimpleExpression -> ['-'] Term [AddOp Term]...
Term -> Factor [MulOp Factor]...
Factor -> Designator
       -> UnsignedNumber
       -> String
       -> '(' Expression ')'
       -> '!' Factor
       -> '[' SetConstructor ']'
       -> NewOperator
       -> '<' FRString '>'
SetConstructor -> SetNode/','...
SetNode -> Expression ['..' Expression]
NewOperator -> NEW Designator
RelOp -> '>'
      -> '<'
      -> '<='
      -> '>='
      -> '!='
      -> '=='
      -> IN
      -> IS
AddOp -> '+'
      -> '-'

-> ‘||’ -> ‘^’

MulOp -> '*'
      -> '/'
      -> '%'
      -> '&&'
      -> '<<'

-> ‘>>’

Designator -> ['&'] Ident ['.' Ident | '[' ExprList ']' |
'(' [ExprList] ')']...
ExprList -> Expression/','...
Statement -> (AssignStmt | CallStmt | BreakStmt | ContinueStmt |
              DeleteStmt | DoWhileStmt | ForStmt | FunctionStmt |
              IfStmt | ImportStmt | ReturnStmt | SwitchStmt |
              VarStmt | WhileStmt | WithStmt | Block) [';']
BreakStmt -> BREAK
ContinueStmt -> CONTINUE
DeleteStmt -> DELETE Designator
AssignStmt -> Designator ['+'|'-'|'*'|'/']'=' Expression
CallStmt -> Designator ['+''+'|'-''-']
ReturnStmt -> RETURN [Expression]
IfStmt -> IF '(' Expression ')' Statement [ELSE Statement]
SwitchStmt -> SWITCH '(' Expression ')' '{' (CaseSelector)... [DEFAULT
':' Statement] '}'
CaseSelector -> CASE SetConstructor ':' Statement
DoWhileStmt -> DO Statement [';'] WHILE '(' Expression ')' ';'
WhileStmt -> WHILE '(' Expression ')' Statement
ForStmt -> FOR '(' ForStmtItem ';' Expression ';' ForStmtItem ')'
Statement
ForStmtItem -> AssignStmt
            -> CallStmt
            -> VarStmt
            -> Empty
TryStmt -> TRY CompoundStmt (FINALLY | EXCEPT) CompoundStmt
FunctionStmt -> FunctionHeading Block
FunctionHeading -> FUNCTION Ident FormalParameters
FormalParameters -> '(' [FormalParam/','...] ')'
FormalParam -> ['&'] Ident
WithStmt -> WITH '(' Designator ')' Statement

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