javacc6.0安装及学习示例

DOCUMENT START 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"> | <_TOKEN: "TOKEN"> | <_SPECIAL_TOKEN: "SPECIAL_TOKEN"> | <_MORE: "MORE"> | <_SKIP: "SKIP"> | <_TOKEN_MGR_DECLS: "TOKEN_MGR_DECLS"> | <_EOF: "EOF"> } /* * 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"> } /* 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: ":"> | <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>)*> | <#LETTER: ["$","A"-"Z","_","a"-"z","\u00a2"-"\u00a5","\u00aa","\u00b5","\u00ba","\u00c0"-"\u00d6","\u00d8"-"\u00f6","\u00f8"-"\u021f","\u0222"-"\u0233","\u0250"-"\u02ad","\u02b0"-"\u02b8","\u02bb"-"\u02c1","\u02d0"-"\u02d1","\u02e0"-"\u02e4","\u02ee","\u037a","\u0386","\u0388"-"\u038a","\u038c","\u038e"-"\u03a1","\u03a3"-"\u03ce","\u03d0"-"\u03d7","\u03da"-"\u03f3","\u0400"-"\u0481","\u048c"-"\u04c4","\u04c7"-"\u04c8","\u04cb"-"\u04cc","\u04d0"-"\u04f5","\u04f8"-"\u04f9","\u0531"-"\u0556","\u0559","\u0561"-"\u0587","\u05d0"-"\u05ea","\u05f0"-"\u05f2","\u0621"-"\u063a","\u0640"-"\u064a","\u0671"-"\u06d3","\u06d5","\u06e5"-"\u06e6","\u06fa"-"\u06fc","\u0710","\u0712"-"\u072c","\u0780"-"\u07a5","\u0905"-"\u0939","\u093d","\u0950","\u0958"-"\u0961","\u0985"-"\u098c","\u098f"-"\u0990","\u0993"-"\u09a8","\u09aa"-"\u09b0","\u09b2","\u09b6"-"\u09b9","\u09dc"-"\u09dd","\u09df"-"\u09e1","\u09f0"-"\u09f3","\u0a05"-"\u0a0a","\u0a0f"-"\u0a10","\u0a13"-"\u0a28","\u0a2a"-"\u0a30","\u0a32"-"\u0a33","\u0a35"-"\u0a36","\u0a38"-"\u0a39","\u0a59"-"\u0a5c","\u0a5e","\u0a72"-"\u0a74","\u0a85"-"\u0a8b","\u0a8d","\u0a8f"-"\u0a91","\u0a93"-"\u0aa8","\u0aaa"-"\u0ab0","\u0ab2"-"\u0ab3","\u0ab5"-"\u0ab9","\u0abd","\u0ad0","\u0ae0","\u0b05"-"\u0b0c","\u0b0f"-"\u0b10","\u0b13"-"\u0b28","\u0b2a"-"\u0b30","\u0b32"-"\u0b33","\u0b36"-"\u0b39","\u0b3d","\u0b5c"-"\u0b5d","\u0b5f"-"\u0b61","\u0b85"-"\u0b8a","\u0b8e"-"\u0b90","\u0b92"-"\u0b95","\u0b99"-"\u0b9a","\u0b9c","\u0b9e"-"\u0b9f","\u0ba3"-"\u0ba4","\u0ba8"-"\u0baa","\u0bae"-"\u0bb5","\u0bb7"-"\u0bb9","\u0c05"-"\u0c0c","\u0c0e"-"\u0c10","\u0c12"-"\u0c28","\u0c2a"-"\u0c33","\u0c35"-"\u0c39","\u0c60"-"\u0c61","\u0c85"-"\u0c8c","\u0c8e"-"\u0c90","\u0c92"-"\u0ca8","\u0caa"-"\u0cb3","\u0cb5"-"\u0cb9","\u0cde","\u0ce0"-"\u0ce1","\u0d05"-"\u0d0c","\u0d0e"-"\u0d10","\u0d12"-"\u0d28","\u0d2a"-"\u0d39","\u0d60"-"\u0d61","\u0d85"-"\u0d96","\u0d9a"-"\u0db1","\u0db3"-"\u0dbb","\u0dbd","\u0dc0"-"\u0dc6","\u0e01"-"\u0e30","\u0e32"-"\u0e33","\u0e3f"-"\u0e46","\u0e81"-"\u0e82","\u0e84","\u0e87"-"\u0e88","\u0e8a","\u0e8d","\u0e94"-"\u0e97","\u0e99"-"\u0e9f","\u0ea1"-"\u0ea3","\u0ea5","\u0ea7","\u0eaa"-"\u0eab","\u0ead"-"\u0eb0","\u0eb2"-"\u0eb3","\u0ebd","\u0ec0"-"\u0ec4","\u0ec6","\u0edc"-"\u0edd","\u0f00","\u0f40"-"\u0f47","\u0f49"-"\u0f6a","\u0f88"-"\u0f8b","\u1000"-"\u1021","\u1023"-"\u1027","\u1029"-"\u102a","\u1050"-"\u1055","\u10a0"-"\u10c5","\u10d0"-"\u10f6","\u1100"-"\u1159","\u115f"-"\u11a2","\u11a8"-"\u11f9","\u1200"-"\u1206","\u1208"-"\u1246","\u1248","\u124a"-"\u124d","\u1250"-"\u1256","\u1258","\u125a"-"\u125d","\u1260"-"\u1286","\u1288","\u128a"-"\u128d","\u1290"-"\u12ae","\u12b0","\u12b2"-"\u12b5","\u12b8"-"\u12be","\u12c0","\u12c2"-"\u12c5","\u12c8"-"\u12ce","\u12d0"-"\u12d6","\u12d8"-"\u12ee","\u12f0"-"\u130e","\u1310","\u1312"-"\u1315","\u1318"-"\u131e","\u1320"-"\u1346","\u1348"-"\u135a","\u13a0"-"\u13f4","\u1401"-"\u166c","\u166f"-"\u1676","\u1681"-"\u169a","\u16a0"-"\u16ea","\u1780"-"\u17b3","\u17db","\u1820"-"\u1877","\u1880"-"\u18a8","\u1e00"-"\u1e9b","\u1ea0"-"\u1ef9","\u1f00"-"\u1f15","\u1f18"-"\u1f1d","\u1f20"-"\u1f45","\u1f48"-"\u1f4d","\u1f50"-"\u1f57","\