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javacc-7.0.4.www.doc.JavaCC.html Maven / Gradle / Ivy

BNF for JavaCC.jj
TOKENS

 
 

  

/**********************************************
 * THE JAVACC TOKEN SPECIFICATION STARTS HERE *
 **********************************************/

/* JAVACC RESERVED WORDS: These are the only tokens in JavaCC but not in Java */
  
 
 
 

  

   
<DEFAULT> TOKEN : {
<_LOOKAHEAD: "LOOKAHEAD">
| <_IGNORE_CASE: "IGNORE_CASE">
| <_PARSER_BEGIN: "PARSER_BEGIN">
| <_PARSER_END: "PARSER_END">
| <_JAVACODE: "JAVACODE">
| <_CPPCODE: "CPPCODE">
| <_TOKEN: "TOKEN">
| <_SPECIAL_TOKEN: "SPECIAL_TOKEN">
| <_MORE: "MORE">
| <_SKIP: "SKIP">
| <_TOKEN_MGR_DECLS: "TOKEN_MGR_DECLS">
| <_EOF: "EOF">
| <_DCL_PARSER_BEGIN: "DCL_PARSER_BEGIN">
| <_DCL_PARSER_END: "DCL_PARSER_END">
| <_INC_PARSER_BEGIN: "INC_PARSER_BEGIN">
| <_INC_PARSER_END: "INC_PARSER_END">
| <_DEF_PARSER_BEGIN: "DEF_PARSER_BEGIN">
| <_DEF_PARSER_END: "DEF_PARSER_END">
}

   
  
 
 
 

  

/*
 * The remainder of the tokens are exactly (except for the removal of tokens
 * containing ">>" and "<<") as in the Java grammar and must be diff equivalent
 * (again with the exceptions above) to it.
 */

/* WHITE SPACE */
  
 
 
 

  

   
<DEFAULT> SKIP : {
" "
| "\t"
| "\n"
| "\r"
| "\f"
| "/*@egen*/" : AFTER_EGEN
}

   
  
 
 
 

  

   
<AFTER_EGEN> SKIP : {
<~[]> : DEFAULT
}

   
  
 
 
 

  

/* COMMENTS */
  
 
 
 

  

   
<DEFAULT> MORE : {
"//" : IN_SINGLE_LINE_COMMENT
| <"/**" ~["/"]> : IN_FORMAL_COMMENT
| "/*" : IN_MULTI_LINE_COMMENT
| "/*@bgen(jjtree" : IN_MULTI_LINE_COMMENT
}

   
  
 
 
 

  

   
<IN_SINGLE_LINE_COMMENT> SPECIAL : {
<SINGLE_LINE_COMMENT: "\n" | "\r" | "\r\n"> : DEFAULT
}

   
  
 
 
 

  

   
<IN_FORMAL_COMMENT> SPECIAL : {
<FORMAL_COMMENT: "*/"> : DEFAULT
}

   
  
 
 
 

  

   
<IN_MULTI_LINE_COMMENT> SPECIAL : {
<MULTI_LINE_COMMENT: "*/"> : DEFAULT
}

   
  
 
 
 

  

   
<IN_SINGLE_LINE_COMMENT,IN_FORMAL_COMMENT,IN_MULTI_LINE_COMMENT> MORE : {
<~[]>
}

   
  
 
 
 

  

/* JAVA RESERVED WORDS AND LITERALS */
  
 
 
 

  

   
<DEFAULT> TOKEN : {
<ABSTRACT: "abstract">
| <ASSERT: "assert">
| <BOOLEAN: "boolean">
| <BREAK: "break">
| <BYTE: "byte">
| <CASE: "case">
| <CATCH: "catch">
| <CHAR: "char">
| <CLASS: "class">
| <CONST: "const">
| <CONTINUE: "continue">
| <_DEFAULT: "default">
| <DO: "do">
| <DOUBLE: "double">
| <ELSE: "else">
| <ENUM: "enum">
| <EXTENDS: "extends">
| <FALSE: "false">
| <FINAL: "final">
| <FINALLY: "finally">
| <FLOAT: "float">
| <FOR: "for">
| <GOTO: "goto">
| <IF: "if">
| <IMPLEMENTS: "implements">
| <IMPORT: "import">
| <INSTANCEOF: "instanceof">
| <INT: "int">
| <INTERFACE: "interface">
| <LONG: "long">
| <NATIVE: "native">
| <NEW: "new">
| <NULL: "null">
| <PACKAGE: "package">
| <PRIVATE: "private">
| <PROTECTED: "protected">
| <PUBLIC: "public">
| <RETURN: "return">
| <SHORT: "short">
| <STATIC: "static">
| <STRICTFP: "strictfp">
| <SUPER: "super">
| <SWITCH: "switch">
| <SYNCHRONIZED: "synchronized">
| <THIS: "this">
| <THROW: "throw">
| <THROWS: "throws">
| <TRANSIENT: "transient">
| <TRUE: "true">
| <TRY: "try">
| <VOID: "void">
| <VOLATILE: "volatile">
| <WHILE: "while">
}

   
  
 
 
 

  

/* C++ RESERVED WORDS AND LITERALS */
  
 
 
 

  

   
<DEFAULT> TOKEN : {
<TEMPLATE: "template">
| <TYPENAME: "typename">
}

   
  
 
 
 

  

/* JAVA LITERALS */
  
 
 
 

  

   
<DEFAULT> TOKEN : {
<INTEGER_LITERAL: <DECIMAL_LITERAL> (["l","L"])? | <HEX_LITERAL> (["l","L"])? | <OCTAL_LITERAL> (["l","L"])?>
| <#DECIMAL_LITERAL: ["1"-"9"] (["0"-"9"])*>
| <#HEX_LITERAL: "0" ["x","X"] (["0"-"9","a"-"f","A"-"F"])+>
| <#OCTAL_LITERAL: "0" (["0"-"7"])*>
| <FLOATING_POINT_LITERAL: <DECIMAL_FLOATING_POINT_LITERAL> | <HEXADECIMAL_FLOATING_POINT_LITERAL>>
| <#DECIMAL_FLOATING_POINT_LITERAL: (["0"-"9"])+ "." (["0"-"9"])* (<DECIMAL_EXPONENT>)? (["f","F","d","D"])? | "." (["0"-"9"])+ (<DECIMAL_EXPONENT>)? (["f","F","d","D"])? | (["0"-"9"])+ <DECIMAL_EXPONENT> (["f","F","d","D"])? | (["0"-"9"])+ (<DECIMAL_EXPONENT>)? ["f","F","d","D"]>
| <#DECIMAL_EXPONENT: ["e","E"] (["+","-"])? (["0"-"9"])+>
| <#HEXADECIMAL_FLOATING_POINT_LITERAL: "0" ["x","X"] (["0"-"9","a"-"f","A"-"F"])+ (".")? <HEXADECIMAL_EXPONENT> (["f","F","d","D"])? | "0" ["x","X"] (["0"-"9","a"-"f","A"-"F"])* "." (["0"-"9","a"-"f","A"-"F"])+ <HEXADECIMAL_EXPONENT> (["f","F","d","D"])?>
| <#HEXADECIMAL_EXPONENT: ["p","P"] (["+","-"])? (["0"-"9"])+>
| <CHARACTER_LITERAL: "\'" (~["\'","\\","\n","\r"] | "\\" (["n","t","b","r","f","\\","\'","\""] | ["0"-"7"] (["0"-"7"])? | ["0"-"3"] ["0"-"7"] ["0"-"7"])) "\'">
| <STRING_LITERAL: "\"" (~["\"","\\","\n","\r"] | "\\" (["n","t","b","r","f","\\","\'","\""] | ["0"-"7"] (["0"-"7"])? | ["0"-"3"] ["0"-"7"] ["0"-"7"]))* "\"">
}

   
  
 
 
 

  

/* SEPARATORS */
  
 
 
 

  

   
<DEFAULT> TOKEN : {
<LPAREN: "(">
| <RPAREN: ")">
| <LBRACE: "{">
| <RBRACE: "}">
| <LBRACKET: "[">
| <RBRACKET: "]">
| <SEMICOLON: ";">
| <COMMA: ",">
| <DOT: ".">
}

   
  
 
 
 

  

/* OPERATORS */
  
 
 
 

  

   
<DEFAULT> TOKEN : {
<ASSIGN: "=">
| <LT: "<">
| <BANG: "!">
| <TILDE: "~">
| <HOOK: "?">
| <COLON: ":">
| <DOUBLECOLON: "::">
| <EQ: "==">
| <LE: "<=">
| <GE: ">=">
| <NE: "!=">
| <SC_OR: "||">
| <SC_AND: "&&">
| <INCR: "++">
| <DECR: "--">
| <PLUS: "+">
| <MINUS: "-">
| <STAR: "*">
| <SLASH: "/">
| <BIT_AND: "&">
| <BIT_OR: "|">
| <XOR: "^">
| <REM: "%">
| <PLUSASSIGN: "+=">
| <MINUSASSIGN: "-=">
| <STARASSIGN: "*=">
| <SLASHASSIGN: "/=">
| <ANDASSIGN: "&=">
| <ORASSIGN: "|=">
| <XORASSIGN: "^=">
| <REMASSIGN: "%=">
}

   
  
 
 
 

  

/* >'s need special attention due to generics syntax. */
  
 
 
 

  

   
<DEFAULT> TOKEN : {
<RUNSIGNEDSHIFT: ">>>"> : {
| <RSIGNEDSHIFT: ">>"> : {
| <GT: ">">
}

   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

   
   
  
 
 
 

  

/* IDENTIFIERS */
  
 
 
 

  

   
<DEFAULT> TOKEN : {
<IDENTIFIER: <LETTER> (<PART_LETTER>)*>
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212a"-"\u212d","\u212f"-"\u2131","\u2133"-"\u2139","\u2160"-"\u2183","\u3005"-"\u3007","\u3021"-"\u302f","\u3031"-"\u3035","\u3038"-"\u303a","\u3041"-"\u3094","\u3099"-"\u309a","\u309d"-"\u309e","\u30a1"-"\u30fe","\u3105"-"\u312c","\u3131"-"\u318e","\u31a0"-"\u31b7","\u3400"-"\u4db5","\u4e00"-"\u9fa5","\ua000"-"\ua48c","\uac00"-"\ud7a3","\uf900"-"\ufa2d","\ufb00"-"\ufb06","\ufb13"-"\ufb17","\ufb1d"-"\ufb28","\ufb2a"-"\ufb36","\ufb38"-"\ufb3c","\ufb3e","\ufb40"-"\ufb41","\ufb43"-"\ufb44","\ufb46"-"\ufbb1","\ufbd3"-"\ufd3d","\ufd50"-"\ufd8f","\ufd92"-"\ufdc7","\ufdf0"-"\ufdfb","\ufe20"-"\ufe23","\ufe33"-"\ufe34","\ufe4d"-"\ufe4f","\ufe69","\ufe70"-"\ufe72","\ufe74","\ufe76"-"\ufefc","\ufeff","\uff04","\uff10"-"\uff19","\uff21"-"\uff3a","\uff3f","\uff41"-"\uff5a","\uff65"-"\uffbe","\uffc2"-"\uffc7","\uffca"-"\uffcf","\uffd2"-"\uffd7","\uffda"-"\uffdc","\uffe0"-"\uffe1","\uffe5"-"\uffe6","\ufff9"-"\ufffb"]>
}

   
  
 
 
 

  

   
<DEFAULT> TOKEN : {
<ACT_TOK: ~[]>
}

   
  
 

NON-TERMINALS

 
 

  

/************************************************
 * THE JAVACC GRAMMAR SPECIFICATION STARTS HERE *
 ************************************************/
  
 

javacc_input
::=
javacc_options "PARSER_BEGIN" "(" identifier ")" CompilationUnit "PARSER_END" "(" identifier ")" ( production )+ <EOF>


javacc_options
::=
( <IDENTIFIER> "{" ( option_binding )* "}" )?


option_binding
::=
( <IDENTIFIER> | "LOOKAHEAD" | "IGNORE_CASE" | "static" | "PARSER_BEGIN" ) "=" ( IntegerLiteral | BooleanLiteral | StringLiteral | StringList ) ";"


StringList
::=
"(" StringLiteral ( "," StringLiteral )* ")"


production
::=
javacode_production



|
cppcode_production



|
regular_expr_production



|
token_manager_decls



|
bnf_production


javacode_production
::=
"JAVACODE" AccessModifier ResultType identifier FormalParameters ( "throws" Name ( "," Name )* )? Block


cppcode_production
::=
"CPPCODE" AccessModifier ResultType identifier FormalParameters ( "throws" Name ( "," Name )* )? Block


bnf_production
::=
AccessModifier ResultType identifier FormalParameters ( "throws" Name ( "," Name )* )? ":" Block "{" expansion_choices "}"


AccessModifier
::=
( "public" | "protected" | "private" )?


regular_expr_production
::=
( "<" "*" ">" | "<" <IDENTIFIER> ( "," <IDENTIFIER> )* ">" )? regexpr_kind ( "[" "IGNORE_CASE" "]" )? ":" "{" regexpr_spec ( "|" regexpr_spec )* "}"


token_manager_decls
::=
"TOKEN_MGR_DECLS" ":" ( ClassOrInterfaceBody )?


regexpr_kind
::=
"TOKEN"



|
"SPECIAL_TOKEN"



|
"SKIP"



|
"MORE"


regexpr_spec
::=
regular_expression ( Block )? ( ":" <IDENTIFIER> )?


expansion_choices
::=
expansion ( "|" expansion )*


expansion
::=
( "LOOKAHEAD" "(" local_lookahead ")" )? ( expansion_unit )+


local_lookahead
::=
( IntegerLiteral )? ( "," )? ( expansion_choices )? ( "," )? ( "{" ( Expression )? "}" )?


expansion_unit
::=
"LOOKAHEAD" "(" local_lookahead ")"



|
Block



|
"[" expansion_choices "]"



|
"try" "{" expansion_choices "}" ( "catch" "(" ( Name <IDENTIFIER> )? ")" Block )* ( "finally" Block )?



|
( PrimaryExpression "=" )? ( identifier ( TypeArguments )? Arguments | regular_expression ( "." <IDENTIFIER> )? )



|
"(" expansion_choices ")" ( "+" | "*" | "?" )?


regular_expression
::=
StringLiteral



|
<LANGLE: "<"> ( ( "#" )? identifier ":" )? complex_regular_expression_choices <RANGLE: ">">



|
"<" identifier ">"



|
"<" "EOF" ">"


complex_regular_expression_choices
::=
complex_regular_expression ( "|" complex_regular_expression )*


complex_regular_expression
::=
( complex_regular_expression_unit )+


complex_regular_expression_unit
::=
StringLiteral



|
"<" identifier ">"



|
character_list



|
"(" complex_regular_expression_choices ")" ( "+" | "*" | "?" | "{" IntegerLiteral ( "," ( IntegerLiteral )? )? "}" )?


character_list
::=
( "~" )? "[" ( character_descriptor ( "," character_descriptor )* )? "]"


character_descriptor
::=
StringLiteral ( "-" StringLiteral )?


identifier
::=
<IDENTIFIER>

 
 

  

/**********************************************
 * THE JAVA GRAMMAR SPECIFICATION STARTS HERE *
 **********************************************/

/*
 * The Java grammar is modified to use sequences of tokens
 * for the missing tokens - those that include "<<" and ">>".
 */

/*
 * The following production defines Java identifiers - it
 * includes the reserved words of JavaCC also.
 */
  
 

JavaIdentifier
::=
( <IDENTIFIER> | "LOOKAHEAD" | "IGNORE_CASE" | "PARSER_BEGIN" | "PARSER_END" | "JAVACODE" | "TOKEN" | "SPECIAL_TOKEN" | "MORE" | "SKIP" | "TOKEN_MGR_DECLS" | "EOF" | "DCL_PARSER_BEGIN" | "DCL_PARSER_END" | "INC_PARSER_BEGIN" | "INC_PARSER_END" | "DEF_PARSER_BEGIN" | "DEF_PARSER_END" )

 
 

  

/*
 * Program structuring syntax follows.
 */
  
 

CompilationUnit
::=
( PackageDeclaration )? ( ImportDeclaration )* ( TypeDeclaration )*


PackageDeclaration
::=
Modifiers "package" Name ";"


ImportDeclaration
::=
"import" ( "static" )? Name ( "." "*" )? ";"

 
 

  

/*
 * Modifiers. We match all modifiers in a single rule to reduce the chances of
 * syntax errors for simple modifier mistakes. It will also enable us to give
 * better error messages.
 */
  
 

Modifiers
::=
( ( "public" | "static" | "protected" | "private" | "final" | "abstract" | "synchronized" | "native" | "transient" | "volatile" | "strictfp" | Annotation ) )*

 
 

  

/*
 * Declaration syntax follows.
 */
  
 

TypeDeclaration
::=
";"



|
Modifiers ( ClassOrInterfaceDeclaration | EnumDeclaration | AnnotationTypeDeclaration )


ClassOrInterfaceDeclaration
::=
( "class" | "interface" ) <IDENTIFIER> ( TypeParameters )? ( ExtendsList )? ( ImplementsList )? ClassOrInterfaceBody


ExtendsList
::=
"extends" ClassOrInterfaceType ( "," ClassOrInterfaceType )*


ImplementsList
::=
"implements" ClassOrInterfaceType ( "," ClassOrInterfaceType )*


EnumDeclaration
::=
"enum" <IDENTIFIER> ( ImplementsList )? EnumBody


EnumBody
::=
"{" ( EnumConstant ( "," EnumConstant )* )? ( "," )? ( ";" ( ClassOrInterfaceBodyDeclaration )* )? "}"


EnumConstant
::=
Modifiers <IDENTIFIER> ( Arguments )? ( ClassOrInterfaceBody )?


TypeParameters
::=
"<" TypeParameter ( "," TypeParameter )* ">"


TypeParameter
::=
<IDENTIFIER> ( TypeBound )?


TypeBound
::=
"extends" ClassOrInterfaceType ( "&" ClassOrInterfaceType )*


ClassOrInterfaceBody
::=
"{" ( ClassOrInterfaceBodyDeclaration )* "}"


ClassOrInterfaceBodyDeclaration
::=
Initializer



|
Modifiers ( ClassOrInterfaceDeclaration | EnumDeclaration | ConstructorDeclaration | FieldDeclaration | MethodDeclaration )



|
";"


FieldDeclaration
::=
Type VariableDeclarator ( "," VariableDeclarator )* ";"


VariableDeclarator
::=
VariableDeclaratorId ( "=" VariableInitializer )?


VariableDeclaratorId
::=
<IDENTIFIER> ( "[" "]" )*


VariableInitializer
::=
ArrayInitializer



|
Expression


ArrayInitializer
::=
"{" ( VariableInitializer ( "," VariableInitializer )* )? ( "," )? "}"


MethodDeclaration
::=
( TypeParameters )? ResultType MethodDeclarator ( "throws" NameList )? ( Block | ";" )


MethodDeclarator
::=
<IDENTIFIER> FormalParameters ( "[" "]" )*


FormalParameters
::=
"(" ( FormalParameter ( "," FormalParameter )* )? ")"


FormalParameter
::=
Modifiers Type ( ( "&" | "*" ) | "..." )? VariableDeclaratorId


ConstructorDeclaration
::=
( TypeParameters )? <IDENTIFIER> FormalParameters ( "throws" NameList )? "{" ( ExplicitConstructorInvocation )? ( BlockStatement )* "}"


ExplicitConstructorInvocation
::=
"this" Arguments ";"



|
( PrimaryExpression "." )? "super" Arguments ";"


Initializer
::=
( "static" )? Block

 
 

  

/*
 * Type, name and expression syntax follows.
 */
  
 

Type
::=
ReferenceType



|
PrimitiveType


ReferenceType
::=
PrimitiveType ( "[" "]" )+



|
( ( Template )? ClassOrInterfaceType ) ( "[" "]" )*


Template
::=
"template" "<" TemplateBase ( "," TemplateBase )* ">"


TemplateBase
::=
TemplatePack ( "..." )? <IDENTIFIER>


TemplatePack
::=
( "class" | "typename" )


ClassOrInterfaceType
::=
<IDENTIFIER> ( TypeArguments )? ( ( "." | "::" ) <IDENTIFIER> ( TypeArguments )? )*


TypeArguments
::=
"<" TypeArgument ( "," TypeArgument ( "..." )? )* ">"


TypeArgument
::=
ReferenceType



|
"?" ( WildcardBounds )?


WildcardBounds
::=
"extends" ReferenceType



|
"super" ReferenceType


PrimitiveType
::=
"boolean"



|
"char"



|
"byte"



|
"short"



|
"int"



|
"long"



|
"float"



|
"double"


ResultType
::=
( "void" ( "*" )? | ( "const" )? Type ( "*" | "&" )? )


Name
::=
JavaIdentifier ( "." JavaIdentifier )*


NameList
::=
Name ( "," Name )*

 
 

  

/*
 * Expression syntax follows.
 */
  
 

Expression
::=
ConditionalExpression ( AssignmentOperator Expression )?


AssignmentOperator
::=
"="



|
"*="



|
"/="



|
"%="



|
"+="



|
"-="



|
"<<="



|
">>="



|
">>>="



|
"&="



|
"^="



|
"|="


ConditionalExpression
::=
ConditionalOrExpression ( "?" Expression ":" Expression )?


ConditionalOrExpression
::=
ConditionalAndExpression ( "||" ConditionalAndExpression )*


ConditionalAndExpression
::=
InclusiveOrExpression ( "&&" InclusiveOrExpression )*


InclusiveOrExpression
::=
ExclusiveOrExpression ( "|" ExclusiveOrExpression )*


ExclusiveOrExpression
::=
AndExpression ( "^" AndExpression )*


AndExpression
::=
EqualityExpression ( "&" EqualityExpression )*


EqualityExpression
::=
InstanceOfExpression ( ( "==" | "!=" ) InstanceOfExpression )*


InstanceOfExpression
::=
RelationalExpression ( "instanceof" Type )?


RelationalExpression
::=
ShiftExpression ( ( "<" | ">" | "<=" | ">=" ) ShiftExpression )*


ShiftExpression
::=
AdditiveExpression ( ( "<<" | RSIGNEDSHIFT | RUNSIGNEDSHIFT ) AdditiveExpression )*


AdditiveExpression
::=
MultiplicativeExpression ( ( "+" | "-" ) MultiplicativeExpression )*


MultiplicativeExpression
::=
UnaryExpression ( ( "*" | "/" | "%" ) UnaryExpression )*


UnaryExpression
::=
( "+" | "-" ) UnaryExpression



|
PreIncrementExpression



|
PreDecrementExpression



|
UnaryExpressionNotPlusMinus


PreIncrementExpression
::=
"++" PrimaryExpression


PreDecrementExpression
::=
"--" PrimaryExpression


UnaryExpressionNotPlusMinus
::=
( "~" | "!" ) UnaryExpression



|
CastExpression



|
PostfixExpression

 
 

  

// This production is to determine lookahead only.  The LOOKAHEAD specifications
// below are not used, but they are there just to indicate that we know about
// this.

  
 

CastLookahead
::=
"(" PrimitiveType



|
"(" Type "[" "]"



|
"(" Type ")" ( "~" | "!" | "(" | <IDENTIFIER> | "this" | "super" | "new" | Literal )


PostfixExpression
::=
PrimaryExpression ( "++" | "--" )?


CastExpression
::=
"(" Type ")" UnaryExpression



|
"(" Type ")" UnaryExpressionNotPlusMinus


PrimaryExpression
::=
PrimaryPrefix ( PrimarySuffix )*


MemberSelector
::=
"." TypeArguments <IDENTIFIER>


PrimaryPrefix
::=
Literal



|
"this"



|
"super" "." <IDENTIFIER>



|
"(" Expression ")"



|
AllocationExpression



|
ResultType "." "class"



|
Name


PrimarySuffix
::=
"." "this"



|
"." AllocationExpression



|
MemberSelector



|
"[" Expression "]"



|
"." <IDENTIFIER>



|
Arguments


Literal
::=
<INTEGER_LITERAL>



|
<FLOATING_POINT_LITERAL>



|
<CHARACTER_LITERAL>



|
<STRING_LITERAL>



|
BooleanLiteral



|
NullLiteral


IntegerLiteral
::=
<INTEGER_LITERAL>


BooleanLiteral
::=
"true"



|
"false"


StringLiteral
::=
<STRING_LITERAL>


NullLiteral
::=
"null"


Arguments
::=
"(" ( ArgumentList )? ")"


ArgumentList
::=
Expression ( "," Expression )*


AllocationExpression
::=
"new" PrimitiveType ArrayDimsAndInits



|
"new" ClassOrInterfaceType ( TypeArguments )? ( ArrayDimsAndInits | Arguments ( ClassOrInterfaceBody )? )

 
 

  

/*
 * The third LOOKAHEAD specification below is to parse to PrimarySuffix
 * if there is an expression between the "[...]".
 */
  
 

ArrayDimsAndInits
::=
( "[" Expression "]" )+ ( "[" "]" )*



|
( "[" "]" )+ ArrayInitializer

 
 

  

/*
 * Statement syntax follows.
 */
  
 

Statement
::=
LabeledStatement



|
AssertStatement



|
Block



|
EmptyStatement



|
StatementExpression ";"



|
SwitchStatement



|
IfStatement



|
WhileStatement



|
DoStatement



|
ForStatement



|
BreakStatement



|
ContinueStatement



|
ReturnStatement



|
ThrowStatement



|
SynchronizedStatement



|
TryStatement


AssertStatement
::=
"assert" Expression ( ":" Expression )? ";"


LabeledStatement
::=
<IDENTIFIER> ":" Statement


Block
::=
"{" ( BlockStatement )* "}"


BlockStatement
::=
LocalVariableDeclaration ";"



|
Statement



|
ClassOrInterfaceDeclaration


LocalVariableDeclaration
::=
Modifiers Type VariableDeclarator ( "," VariableDeclarator )*


EmptyStatement
::=
";"


StatementExpression
::=
PreIncrementExpression



|
PreDecrementExpression



|
PrimaryExpression ( "++" | "--" | AssignmentOperator Expression )?


SwitchStatement
::=
"switch" "(" Expression ")" "{" ( SwitchLabel ( BlockStatement )* )* "}"


SwitchLabel
::=
"case" Expression ":"



|
"default" ":"


IfStatement
::=
"if" "(" Expression ")" Statement ( "else" Statement )?


WhileStatement
::=
"while" "(" Expression ")" Statement


DoStatement
::=
"do" Statement "while" "(" Expression ")" ";"


ForStatement
::=
"for" "(" ( Modifiers Type <IDENTIFIER> ":" Expression | ( ForInit )? ";" ( Expression )? ";" ( ForUpdate )? ) ")" Statement


ForInit
::=
LocalVariableDeclaration



|
StatementExpressionList


StatementExpressionList
::=
StatementExpression ( "," StatementExpression )*


ForUpdate
::=
StatementExpressionList


BreakStatement
::=
"break" ( <IDENTIFIER> )? ";"


ContinueStatement
::=
"continue" ( <IDENTIFIER> )? ";"


ReturnStatement
::=
"return" ( Expression )? ";"


ThrowStatement
::=
"throw" Expression ";"


SynchronizedStatement
::=
"synchronized" "(" Expression ")" Block


TryStatement
::=
"try" Block ( "catch" "(" FormalParameter ")" Block )* ( "finally" Block )?

 
 

  

/* We use productions to match >>>, >> and > so that we can keep the
 * type declaration syntax with generics clean
 */
  
 

RUNSIGNEDSHIFT
::=
( ">" ">" ">" )


RSIGNEDSHIFT
::=
( ">" ">" )

 
 

  

/* Annotation syntax follows. */
  
 

Annotation
::=
NormalAnnotation



|
SingleMemberAnnotation



|
MarkerAnnotation


NormalAnnotation
::=
"@" Name "(" ( MemberValuePairs )? ")"


MarkerAnnotation
::=
"@" Name


SingleMemberAnnotation
::=
"@" Name "(" MemberValue ")"


MemberValuePairs
::=
MemberValuePair ( "," MemberValuePair )*


MemberValuePair
::=
<IDENTIFIER> "=" MemberValue


MemberValue
::=
Annotation



|
MemberValueArrayInitializer



|
ConditionalExpression


MemberValueArrayInitializer
::=
"{" MemberValue ( "," MemberValue )* ( "," )? "}"

 
 

  

/* Annotation Types. */
  
 

AnnotationTypeDeclaration
::=
"@" "interface" <IDENTIFIER> AnnotationTypeBody


AnnotationTypeBody
::=
"{" ( AnnotationTypeMemberDeclaration )* "}"


AnnotationTypeMemberDeclaration
::=
Modifiers ( Type <IDENTIFIER> "(" ")" ( DefaultValue )? ";" | ClassOrInterfaceDeclaration | EnumDeclaration | AnnotationTypeDeclaration | FieldDeclaration )



|
( ";" )


DefaultValue
::=
"default" MemberValue