C++/スクリプト/言語仕様/字句

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SourceCode:
    EndOfFile
    CodeElements EndOfFile
 
CodeElements:
    WhiteSpace
    EndOfLine
    Comment
    Token

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WhiteSpace:
    Space
    Space WhiteSpace
 
Space:
    0x0020
    0x0009
    0x000B
    0x000C

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EndOfLine:
    0x000D
    0x000A
    0x000D 0x000A
    EndOfFile

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EndOfFile:
    physical end of the file
    0x0000
    0x001A

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Comment:
    "/*" Characters "*/"
    "//" Characters EndOfLine
    NestingBlockComment
 
Characters:
    Character
    Character Characters
 
NestingBlockComment:
    "/+" NestingBlockCommentCharacters "+/"
 
NestingBlockCommentCharacters:
    NestingBlockCommentCharacter
    NestingBlockCommentCharacter NestingBlockCommentCharacters
 
NestingBlockCommentCharacter:
    Character
    NestingBlockComment

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Token:
    Identifier
    StringLiteral
    CharacterLiteral
    IntegerLiteral
    FloatLiteral
    Keyword
    "/"
    "/="
    "."
    "&"
    "&="
    "&&"
    "|"
    "|="
    "||"
    "-"
    "-="
    "--"
    "+"
    "+="
    "++"
    "<"
    "<="
    "<<"
    "<<="
    ">"
    ">="
    ">>="
    ">>"
    "!"
    "!="
    "("
    ")"
    "["
    "]"
    "{"
    "}"
    "?"
    ","
    ";"
    ":"
    "="
    "=="
    "*"
    "*="
    "%"
    "%="
    "^"
    "^="
    "~"

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Identifier:
    IdentiferStart
    IdentiferStart IdentifierChars
 
IdentifierChars:
    IdentiferChar
    IdentiferChar IdentifierChars
 
IdentifierStart:
    EnglishAlpha
    UniversalAlpha
 
IdentifierChar:
    IdentiferStart
    Digit
    "_"
 
EnglishAlpha:
    a-zA-Z
 
UniversalAlpha:
    あいうえお...
 
Digit:
    0-9

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StringLiteral:
	WysiwygString
	DoubleQuotedString
 
WysiwygString:
	r" WysiwygCharacters " Postfix(opt)
 
WysiwygCharacters:
	WysiwygCharacter
	WysiwygCharacter WysiwygCharacters
 
WysiwygCharacter:
	Character
	EndOfLine
 
DoubleQuotedString:
	" DoubleQuotedCharacters " Postfix(opt)
 
DoubleQuotedCharacters:
	DoubleQuotedCharacter
	DoubleQuotedCharacter DoubleQuotedCharacters
 
DoubleQuotedCharacter:
	Character
	EscapeSequence
	EndOfLine
 
EscapeSequence:
	\'
	\"
	\?
	\\
	\a  (0x07)
	\b  (0x08)
	\f  (0x0C)
	\n  (0x0A)
	\r  (0x0D)
	\t  (0x09)
	\v  (0x0B)
 
Postfix:
	c
	w
	d