\nJavaCC\u3092\u4f7f\u3063\u3066\u307f\u305f\u3002\n<\/p>\n
\nRef: JavaCC Home<\/a> \u6e96\u5099 \n\u624b\u9806 \u8d77\u52d5\u30af\u30e9\u30b9\u3092\u5225\u306b\u4f5c\u6210\u3059\u308b\u5834\u5408\u306f\u30012, 3\u306e\u9593\u306b\u8d77\u52d5\u7528\u30af\u30e9\u30b9\u4f5c\u6210\u3092\u884c\u3044\u30013\u3067\u306f\u8d77\u52d5\u30af\u30e9\u30b9\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u3002<\/p>\n <\/p>\n \n\u307e\u305a\u306f\u3068\u3063\u3066\u3082\u7c21\u5358\u306aHello\u30af\u30e9\u30b9\u3092\u4f5c\u3063\u3066\u307f\u308b\u3002\u3053\u308c\u306f\u3001hello\u3068\u3044\u3046\u6587\u5b57\u5217\u3092\u53d7\u3051\u4ed8\u3051\u3066\u51e6\u7406\u3092\u884c\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u3059\u308b\u3002\u305d\u308c\u4ee5\u5916\u306e\u6587\u5b57\u5217\u3092\u5165\u529b\u3059\u308b\u3068\u30a8\u30e9\u30fc\u3092\u767a\u751f\u3059\u308b\u3002hello.jj\u306e\u30b3\u30fc\u30c9\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308b\u3002\n<\/p>\n \nPARSER_BEGIN(Hello)\u304b\u3089PARSER_END(Hello)\u306e\u3068\u3053\u308d\u306bmain\u30e1\u30bd\u30c3\u30c9\u3092\u6301\u3064Hello\u30af\u30e9\u30b9\u306e\u51e6\u7406\u3092\u8a18\u8ff0\u3059\u308b\u3002\u3053\u3053\u3067\u306f\u3001\u6a19\u6e96\u5165\u529b\u304b\u3089\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080Hello\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u3063\u3066\u3044\u308b\u3002\u3053\u306e\u8a18\u8ff0\u306b\u3088\u308a\u3001\u6b21\u306e\u3088\u3046\u306a\u30af\u30e9\u30b9\u304c\u751f\u6210\u3055\u308c\u308b\u3002\n<\/p>\n \nSKIP\u306b\u306f\u533a\u5207\u308a\u6587\u5b57\u3068\u306a\u308b\u6587\u5b57\u3092\u6307\u5b9a\u3059\u308b\u3002\u3053\u306e\u533a\u5207\u308a\u6587\u5b57\u306f\u8aad\u307f\u8fbc\u307f\u304c\u7834\u68c4\u3055\u308c\u308b\u3002\u3053\u3053\u3067\u306f\u3001\u534a\u89d2\u7a7a\u767d\u3068\u5fa9\u5e30\u3068\u884c\u9001\u308a\u3092\u6307\u5b9a\u3057\u3066\u3044\u308b\u3002\uff5c\u3068\u3044\u3046\u8a18\u53f7\u3092\u4f7f\u3063\u3066 ” “\u304b”\\r”\u304b”\\n”\u306e\u3069\u308c\u304b\u3068\u4e00\u81f4\u3059\u308b\u3082\u306e\u306f\u533a\u5207\u308a\u6587\u5b57\u3060\u3068\u6307\u5b9a\u3057\u3066\u3044\u308b\u3002\n<\/p>\n \nTOKEN\u3067\u306f\u30c8\u30fc\u30af\u30f3\u3068\u306a\u308b\u6587\u5b57\u5217\u306b\u5bfe\u3057\u3066\u30d7\u30ed\u30b0\u30e9\u30e0\u5185\u3067\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u540d\u524d\u3092\u3064\u3051\u3066\u3044\u308b\u3002\u3053\u3053\u3067\u306f\u3001”hello”\u3068\u3044\u3046\u6587\u5b57\u5217\u3092\u53d7\u3051\u4ed8\u3051\u305f\u3044\u306e\u3067\u3001\u3053\u308c\u306b\u5bfe\u3057\u3066HELLO\u3068\u3044\u3046\u540d\u524d\u3092\u3064\u3051\u3066\u30d7\u30ed\u30b0\u30e9\u30e0\u4e2d\u3067\u306f\u6587\u5b57\u5217”hello”\u306e\u4ee3\u308f\u308a\u306bHELLO\u3092\u4f7f\u3046\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\n<\/p>\n \n\u6b21\u306e\u90e8\u5206\u306f\u3001Hello\u30af\u30e9\u30b9\u304c\u6301\u3064\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u308b\u3002Start\u30e1\u30bd\u30c3\u30c9\u3067\u306fhello\u30e1\u30bd\u30c3\u30c9\u306e\u51e6\u7406\u3092\u3057\u3066\u304b\u3089\u3001\u81ea\u5206\u306e\u51e6\u7406\uff08\u3053\u3053\u3067\u306f System.out.println(“…done”)\u306e\u51e6\u7406\uff09\u3092\u884c\u3046\u3068\u8a18\u8ff0\u3055\u308c\u3066\u3044\u308b\u3002hello\u30e1\u30bd\u30c3\u30c9\u3067\u306f\u3001<HELLO>\u3068\u3044\u3046\u30c8\u30fc\u30af\u30f3\u3067\u3042\u3063\u305f\u3089\u3001\u6307\u5b9a\u3055\u308c\u305f\u51e6\u7406\uff08\u3053\u3053\u3067\u306fSystem.out.println(“Hello”)\u306e\u51e6\u7406\uff09\u3092\u884c\u3046\u3068\u8a18\u8ff0\u3055\u308c\u3066\u3044\u308b\u3002\n<\/p>\n \n\u8a00\u8449\u3067\u8aac\u660e\u3055\u308c\u308b\u3068\u308f\u304b\u308a\u306b\u304f\u3044\u304c\u3001\u3069\u3046\u3044\u3046\u30b3\u30fc\u30c9\u304c\u751f\u6210\u3055\u308c\u308b\u304b\u3092\u898b\u308b\u3068\u308f\u304b\u308b\u3060\u308d\u3046\u3002 jj_consume_token\u30e1\u30bd\u30c3\u30c9\u306f\u81ea\u52d5\u7684\u306b\u751f\u6210\u3055\u308c\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3001\u8aad\u307f\u8fbc\u3093\u3060\u6587\u5b57\u5217\u304c\u30c8\u30fc\u30af\u30f3HELLO\uff08\u3053\u3053\u3067\u306f”hello”\uff09\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3082\u306e\u3060\u3002\u3082\u3057\u4e00\u81f4\u3057\u306a\u304b\u3063\u305f\u3089\u3001\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u304cParseException\u3092throw\u3059\u308b\u306e\u3067\u3001System.out.println(“Hello”)\u3068\u3044\u3046\u51e6\u7406\u306f\u5b9f\u884c\u3055\u308c\u306a\u3044\u3002\u4e00\u81f4\u3059\u308c\u3070\u3001System.out.println(“Hello”)\u306f\u5b9f\u884c\u3055\u308c\u308b\u3002\n<\/p>\n static final public void hello() throws ParseException { \u5b9f\u884c\u307e\u3067\u306e\u5177\u4f53\u7684\u306a\u624b\u9806\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308b\u3002\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3057\u305f\u5f8c\u306b\u3001hello\u3068\u5165\u529b\u3059\u308b\u3068\u6587\u5b57\u5217\u3092\u53d7\u3051\u4ed8\u3051\u3066hello.jj\u3067\u8a18\u8ff0\u3057\u305f\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u308b\u3002\u3057\u304b\u3057\u3001hello\u4ee5\u5916\u306e\u6587\u5b57\u5217\u3092\u5165\u529b\u3059\u308b\u3068\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u6587\u5b57\u5217\u89e3\u6790\u4e2d\u306b\u3001\u53d7\u4ed8\u3067\u304d\u306a\u3044\u6587\u5b57\u5217\u304c\u5165\u529b\u3055\u308c\u305f\u3053\u3068\u8a8d\u8b58\u3057\u3066\u4f8b\u5916\u3092\u767a\u751f\u3059\u308b\u3002\u3053\u308c\u3089\u306e\u3053\u3068\u3092\u78ba\u8a8d\u3092\u3057\u3066\u307f\u3088\u3046\u3002<\/p>\n > javac Hello.java<\/p>\n > java -cp . Hello > java -cp . Hello \u3053\u3053\u3067\u306f\u975e\u5e38\u306b\u7c21\u5358\u306a\u4f8b\u3092\u793a\u3057\u305f\u304c\u3001\u30d1\u30fc\u30b6\u306b\u99b4\u67d3\u307f\u306e\u306a\u3044\u4eba\u306b\u306f\u307e\u3060\u4f55\u3092\u3057\u3066\u3044\u308b\u306e\u304b\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u304b\u3082\u3057\u308c\u306a\u3044\u3002\u99b4\u67d3\u307f\u306e\u3042\u308b\u4eba\u306f\u4f55\u3068\u306a\u304fJavaCC\u306e\u4f7f\u3044\u65b9\u306e\u611f\u3058\u304c\u3064\u304b\u3081\u305f\u306e\u3067\u306f\u306a\u3044\u3060\u308d\u3046\u304b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" JavaCC\u3092\u4f7f\u3063\u3066\u307f\u305f\u3002 Ref: JavaCC Home Ref: JavaCC Grammar Repository \u6e96\u5099 javacc-3.2.tar.gz \u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3001\u5c55\u958b\u3059\u308b\u3002\u3067\u304d\u3042\u304c\u3063\u305f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b … \u7d9a\u304d\u3092\u8aad\u3080
\nRef: JavaCC Grammar Repository<\/a>\n<\/p>\n
\njavacc-3.2.tar.gz \u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3001\u5c55\u958b\u3059\u308b\u3002\u3067\u304d\u3042\u304c\u3063\u305f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u3042\u308bbin\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u30d1\u30b9\u3092\u901a\u3059\u3002\n<\/p>\n
\n1.\u6587\u6cd5\u3092\u5b9a\u7fa9\u3057\u305f jj\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210 … hello.jj
\n2.JavaCC\u3067parser\u3092\u751f\u6210 … javacc Hello.jj
\n3.javac\u30b3\u30de\u30f3\u30c9\u3067\u30b3\u30f3\u30d1\u30a4\u30eb … javac Hello.java
\n4.\u5b9f\u884c … java Hello\n<\/p>\n
\n ** Hello
\n **\/
\nPARSER_BEGIN(Hello)
\npublic class Hello {
\n public static void main(String args[]) throws ParseException {
\n Hello parser = new Hello(System.in);
\n parser.Start();
\n }
\n}
\nPARSER_END(Hello)
\nSKIP :
\n{
\n ” “|”\\r”|”\\n”
\n}
\nTOKEN :
\n{
\n < HELLO: “hello” >
\n}
\nvoid Start() :
\n{}
\n{
\n hello() { System.out.println(“…done”); }
\n}
\nvoid hello() :
\n{}
\n{
\n
\n}<\/div>\n
\npublic class Hello implements HelloConstants {
\n public static void main(String args[]) throws ParseException {
\n Hello parser = new Hello(System.in);
\n parser.Start();
\n }
\n \/* \u4ee5\u4e0b\u7565 *\/
\n}<\/div>\n
\n{}
\n{
\n hello() { System.out.println(“…done”); }
\n}
\nvoid hello() :
\n{}
\n{
\n <HELLO> { System.out.println(“Hello”); }
\n}<\/div>\n
\n hello();
\n System.out.println(“…done”);
\n }<\/p>\n
\n jj_consume_token(HELLO);
\n System.out.println(“Hello”);
\n }<\/p><\/div>\n
\nJava Compiler Compiler Version 3.2 (Parser Generator)
\n(type “javacc” with no arguments for help)
\nReading from file hello.jj . . .
\nFile “TokenMgrError.java” does not exist. Will create one.
\nFile “ParseException.java” does not exist. Will create one.
\nFile “Token.java” does not exist. Will create one.
\nFile “SimpleCharStream.java” does not exist. Will create one.
\nParser generated successfully.<\/p>\n
\nhello
\nHello
\n…done<\/p>\n
\nbye
\nException in thread “main” TokenMgrError: Lexical error at line 1, column 1. En
\ncountered: “b” (98), after : “”
\n at HelloTokenManager.getNextToken(HelloTokenManager.java:225)
\n at Hello.jj_consume_token(Hello.java:109)
\n at Hello.hello(Hello.java:14)
\n at Hello.Start(Hello.java:9)
\n at Hello.main(Hello.java:5)\n<\/p><\/div>\n