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InputElementDiv ::
WhiteSpace
LineTerminator
Comment
CommonToken
DivPunctuator
RightBracePunctuator
InputElementRegExp ::
WhiteSpace
LineTerminator
Comment
CommonToken
RightBracePunctuator
RegularExpressionLiteral
InputElementRegExpOrTemplateTail ::
WhiteSpace
LineTerminator
Comment
CommonToken
RegularExpressionLiteral
TemplateSubstitutionTail
InputElementTemplateTail ::
WhiteSpace
LineTerminator
Comment
CommonToken
DivPunctuator
TemplateSubstitutionTail
WhiteSpace ::
<TAB>
<VT>
<FF>
<SP>
<NBSP>
<ZWNBSP>
<USP>
LineTerminator ::
<LF>
<CR>
<LS>
<PS>
LineTerminatorSequence ::
<LF>
<LS>
<PS>
<CR> <LF>
MultiLineCommentChars ::
MultiLineCommentPiece
MultiLineCommentChars MultiLineCommentPiece
MultiLineCommentPiece ::
MultiLineNotAsteriskChar
Stars MultiLineNotForwardSlashOrAsteriskChar
MultiLineNotAsteriskChar ::
SourceCharacter but not `*`
MultiLineNotForwardSlashOrAsteriskChar ::
SourceCharacter but not one of `/` or `*`
SingleLineComment ::
`//` SingleLineCommentChars?
SingleLineCommentChars ::
SingleLineCommentChar SingleLineCommentChars?
SingleLineCommentChar ::
SourceCharacter but not LineTerminator
CommonToken ::
IdentifierName
Punctuator
NumericLiteral
StringLiteral
Template
Identifier ::
`TODO`
IdentifierName ::
IdentifierStart
IdentifierName IdentifierPart
IdentifierStart ::
UnicodeIDStart
`$`
`_`
`\` UnicodeEscapeSequence
IdentifierPart ::
UnicodeIDContinue
`$`
`\` UnicodeEscapeSequence
<ZWNJ>
<ZWJ>
UnicodeIDStart ::
`TODO`
UnicodeIDContinue ::
`TODO`
ReservedWord ::
Keyword
FutureReservedWord
NullLiteral
BooleanLiteral
Keyword :: one of
`await`
`break`
`case` `catch` `class` `const` `continue`
`debugger` `default` `delete` `do`
`else` `export` `extends`
`finally` `for` `function`
`if` `import` `in` `instanceof`
`new`
`return`
`super` `switch`
`this` `throw` `try` `typeof`
`var` `void`
`while` `with`
`yield`
FutureReservedWord ::
`enum`
Punctuator :: one of
`{` `(` `)` `[` `]`
`.` `...` `;` `,`
`<` `>` `<=` `>=`
`==` `!=` `===` `!==`
`+` `-` `*` `%` `**`
`++` `--`
`<<` `>>` `>>>`
`&` `|` `^`
`!` `~`
`&&` `||`
`?` `:`
`=` `+=` `-=` `*=` `%=` `**=` `<<=` `>>=` `>>>=` `&=` `|=` `^=`
`=>`
DivPunctuator ::
`/`
`/=`
RightBracePunctuator ::
`}`
NullLiteral ::
`null`
BooleanLiteral ::
`true`
`false`
DecimalLiteral ::
DecimalIntegerLiteral `.` DecimalDigits? ExponentPart?
`.` DecimalDigits ExponentPart?
DecimalIntegerLiteral ExponentPart?
DecimalDigits ::
DecimalDigit
DecimalDigits DecimalDigit
DecimalDigit :: one of
`0` `1` `2` `3` `4` `5` `6` `7` `8` `9`
NonZeroDigit :: one of
`1` `2` `3` `4` `5` `6` `7` `8` `9`
ExponentPart ::
ExponentIndicator SignedInteger
ExponentIndicator :: one of
`e` `E`
SignedInteger ::
DecimalDigits
`+` DecimalDigits
`-` DecimalDigits
BinaryIntegerLiteral ::
`0b` BinaryDigits
`0B` BinaryDigits
BinaryDigits ::
BinaryDigit
BinaryDigits BinaryDigit
BinaryDigit :: one of
`0` `1`
OctalIntegerLiteral ::
`0o` OctalDigits
`0O` OctalDigits
OctalDigits ::
OctalDigit
OctalDigits OctalDigit
OctalDigit :: one of
`0` `1` `2` `3` `4` `5` `6` `7`
HexIntegerLiteral ::
`0x` HexDigits
`0X` HexDigits
HexDigits ::
HexDigit
HexDigits HexDigit
HexDigit :: one of
`0` `1` `2` `3` `4` `5` `6` `7` `8` `9` `a` `b` `c` `d` `e` `f` `A` `B` `C` `D` `E` `F`
StringLiteral ::
`"` DoubleStringCharacters? `"`
`'` SingleStringCharacters? `'`
DoubleStringCharacters ::
DoubleStringCharacter DoubleStringCharacters?
SingleStringCharacters ::
SingleStringCharacter SingleStringCharacters?
DoubleStringCharacter ::
SourceCharacter but not one of `"` or `\` or LineTerminator
<LS>
<PS>
`\` EscapeSequence
LineContinuation
SingleStringCharacter ::
SourceCharacter but not one of `'` or `\` or LineTerminator
<LS>
<PS>
`\` EscapeSequence
LineContinuation
LineContinuation ::
`\` LineTerminatorSequence
CharacterEscapeSequence ::
SingleEscapeCharacter
NonEscapeCharacter
SingleEscapeCharacter :: one of
`'` `"` `\` `b` `f` `n` `r` `t` `v`
NonEscapeCharacter ::
SourceCharacter but not one of EscapeCharacter or LineTerminator
EscapeCharacter ::
SingleEscapeCharacter
DecimalDigit
`x`
`u`
HexEscapeSequence ::
`x` HexDigit HexDigit
UnicodeEscapeSequence ::
`u` Hex4Digits
`u{` CodePoint `}`
Hex4Digits ::
HexDigit HexDigit HexDigit HexDigit
RegularExpressionLiteral ::
`/` RegularExpressionBody `/` RegularExpressionFlags
RegularExpressionBody ::
RegularExpressionFirstChar RegularExpressionChars
RegularExpressionChars ::
[empty]
RegularExpressionChars RegularExpressionChar
RegularExpressionFirstChar ::
RegularExpressionNonTerminator but not one of `*` or `\` or `/` or `[`
RegularExpressionBackslashSequence
RegularExpressionClass
RegularExpressionChar ::
RegularExpressionNonTerminator but not one of `\` or `/` or `[`
RegularExpressionBackslashSequence
RegularExpressionClass
RegularExpressionBackslashSequence ::
`\` RegularExpressionNonTerminator
RegularExpressionNonTerminator ::
SourceCharacter but not LineTerminator
RegularExpressionClass ::
`[` RegularExpressionClassChars `]`
RegularExpressionClassChars ::
[empty]
RegularExpressionClassChars RegularExpressionClassChar
RegularExpressionClassChar ::
RegularExpressionNonTerminator but not one of `]` or `\`
RegularExpressionBackslashSequence
RegularExpressionFlags ::
[empty]
RegularExpressionFlags IdentifierPart
Template ::
NoSubstitutionTemplate
TemplateHead
NoSubstitutionTemplate ::
``` TemplateCharacters? ```
TemplateHead ::
``` TemplateCharacters? `${`
TemplateSubstitutionTail ::
TemplateMiddle
TemplateTail
TemplateMiddle ::
`}` TemplateCharacters? `${`
TemplateTail ::
`}` TemplateCharacters? ```
TemplateCharacters ::
TemplateCharacter TemplateCharacters?
TemplateCharacter ::
`$` [lookahead != `{` ]
`\` EscapeSequence
`\` NotEscapeSequence
LineContinuation
LineTerminatorSequence
SourceCharacter but not one of ``` or `\` or `$` or LineTerminator
NotEscapeSequence ::
`0` DecimalDigit
DecimalDigit but not `0`
`x` [lookahead <! HexDigit]
`x` HexDigit [lookahead <! HexDigit]
`u` [lookahead <! HexDigit] [lookahead != `{`]
`u` HexDigit [lookahead <! HexDigit]
`u` HexDigit HexDigit [lookahead <! HexDigit]
`u` HexDigit HexDigit HexDigit [lookahead <! HexDigit]
`u` `{` [lookahead <! HexDigit]
`u` `{` NotCodePoint [lookahead <! HexDigit]
`u` `{` CodePoint [lookahead <! HexDigit] [lookahead != `}`]
NotCodePoint ::
HexDigits [> but only if MV of |HexDigits| > 0x10FFFF ]
CodePoint ::
HexDigits [> but only if MV of |HexDigits| ≤ 0x10FFFF ]
ControlLetter :: one of
`a` `b` `c` `d` `e` `f` `g` `h` `i` `j` `k` `l` `m` `n` `o` `p` `q` `r` `s` `t` `u` `v` `w` `x` `y` `z`
`A` `B` `C` `D` `E` `F` `G` `H` `I` `J` `K` `L` `M` `N` `O` `P` `Q` `R` `S` `T` `U` `V` `W` `X` `Y` `Z`
NumericLiteral ::
DecimalLiteral
BinaryIntegerLiteral
OctalIntegerLiteral
HexIntegerLiteral
LegacyOctalIntegerLiteral
LegacyOctalIntegerLiteral ::
`0` OctalDigit
LegacyOctalIntegerLiteral OctalDigit
DecimalIntegerLiteral ::
`0`
NonZeroDigit DecimalDigits?
NonOctalDecimalIntegerLiteral
NonOctalDecimalIntegerLiteral ::
`0` NonOctalDigit
LegacyOctalLikeDecimalIntegerLiteral NonOctalDigit
NonOctalDecimalIntegerLiteral DecimalDigit
LegacyOctalLikeDecimalIntegerLiteral ::
`0` OctalDigit
LegacyOctalLikeDecimalIntegerLiteral OctalDigit
NonOctalDigit :: one of
`8` `9`
EscapeSequence ::
CharacterEscapeSequence
LegacyOctalEscapeSequence
HexEscapeSequence
UnicodeEscapeSequence
LegacyOctalEscapeSequence ::
OctalDigit [lookahead <! OctalDigit]
ZeroToThree OctalDigit [lookahead <! OctalDigit]
FourToSeven OctalDigit
ZeroToThree OctalDigit OctalDigit
ZeroToThree :: one of
`0` `1` `2` `3`
FourToSeven :: one of
`4` `5` `6` `7`
Comment ::
MultiLineComment
SingleLineComment
SingleLineHTMLOpenComment
SingleLineHTMLCloseComment
SingleLineDelimitedComment
MultiLineComment ::
`/*` FirstCommentLine? LineTerminator MultiLineCommentChars? `*/` HTMLCloseComment?
FirstCommentLine ::
SingleLineDelimitedCommentChars
SingleLineHTMLOpenComment ::
`<!--` SingleLineCommentChars?
SingleLineHTMLCloseComment ::
LineTerminatorSequence HTMLCloseComment
SingleLineDelimitedComment ::
`/*` SingleLineDelimitedCommentChars? `*/`
HTMLCloseComment ::
WhiteSpaceSequence? SingleLineDelimitedCommentSequence? `-->` SingleLineCommentChars?
SingleLineDelimitedCommentChars ::
SingleLineDelimitedCommentPiece
SingleLineDelimitedCommentChars SingleLineDelimitedCommentPiece
SingleLineDelimitedCommentPiece ::
SingleLineNotAsteriskChar
Stars SingleLineNotForwardSlashOrAsteriskChar
Stars ::
`*`
Stars `*`
SingleLineNotAsteriskChar ::
SourceCharacter but not one of `*` or LineTerminator
SingleLineNotForwardSlashOrAsteriskChar ::
SourceCharacter but not one of `/` or `*` or LineTerminator
WhiteSpaceSequence ::
WhiteSpace WhiteSpaceSequence?
SingleLineDelimitedCommentSequence ::
SingleLineDelimitedComment WhiteSpaceSequence? SingleLineDelimitedCommentSequence?