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POError in creating parser from java grammar antlr
 

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  1. POError in creating parser from java grammar antlr
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    <p>I am using this <a href="https://raw.github.com/grammarware/slps/master/topics/grammars/java-6/jiang/Java.g" rel="nofollow">grammar</a> form generating parser using Antlr but on executing this command </p> <pre><code>C:\Javalib&gt;java -cp antlr-3.2.jar org.antlr.Tool Java.g </code></pre> <p>i am getting following errors, warning. Further am having problem in parsing the ast from above grammar</p> <pre><code>warning(209): Java.g:1771:1: Multiple token rules can match input such as "'*'": STAR, STAREQ As a result, token(s) STAREQ were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'i'": IF, IMPLEMENTS, IMPORT, INSTANCEOF, INT , INTERFACE, IDENTIFIER As a result, token(s) IMPLEMENTS,IMPORT,INSTANCEOF,INT,INTERFACE,IDENTIFIER were disabled for that input warning(209): Java.g:1775:1: Multiple token rules can match input such as "'/'": COMMENT, LINE_COMMENT, SLASH, SLASHEQ As a result, token(s) LINE_COMMENT,SLASH,SLASHEQ were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'n'": NATIVE, NEW, NULL, IDENTIFIER As a result, token(s) NEW,NULL,IDENTIFIER were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'a'": ABSTRACT, ASSERT, IDENTIFIER As a result, token(s) ASSERT,IDENTIFIER were disabled for that input warning(209): Java.g:1791:1: Multiple token rules can match input such as "'%'": PERCENT, PERCENTEQ As a result, token(s) PERCENTEQ were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'d'": DEFAULT, DO, DOUBLE, IDENTIFIER As a result, token(s) DO,DOUBLE,IDENTIFIER were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'e'": ELSE, ENUM, EXTENDS, IDENTIFIER As a result, token(s) ENUM,EXTENDS,IDENTIFIER were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'p'": PACKAGE, PRIVATE, PROTECTED, PUBLIC, ID ENTIFIER As a result, token(s) PRIVATE,PROTECTED,PUBLIC,IDENTIFIER were disabled for that input warning(209): Java.g:1354:1: Multiple token rules can match input such as "'1'..'9'": LONGLITERAL, INTLITERAL, FLOATLITE RAL, DOUBLELITERAL As a result, token(s) INTLITERAL,FLOATLITERAL,DOUBLELITERAL were disabled for that input warning(209): Java.g:1687:1: Multiple token rules can match input such as "'.'": FLOATLITERAL, DOUBLELITERAL, DOT, ELLIP SIS As a result, token(s) DOUBLELITERAL,DOT,ELLIPSIS were disabled for that input warning(209): Java.g:1779:1: Multiple token rules can match input such as "'&amp;'": AMPAMP, AMP, AMPEQ As a result, token(s) AMP,AMPEQ were disabled for that input warning(209): Java.g:1354:1: Multiple token rules can match input such as "'0'": LONGLITERAL, INTLITERAL, FLOATLITERAL, DOUBLELITERAL As a result, token(s) INTLITERAL,FLOATLITERAL,DOUBLELITERAL were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'b'": BOOLEAN, BREAK, BYTE, IDENTIFIER As a result, token(s) BREAK,BYTE,IDENTIFIER were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'w'": WHILE, IDENTIFIER As a result, token(s) IDENTIFIER were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'t'": THIS, THROW, THROWS, TRANSIENT, TRY, TR UE, IDENTIFIER As a result, token(s) THROW,THROWS,TRANSIENT,TRY,TRUE,IDENTIFIER were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'r'": RETURN, IDENTIFIER As a result, token(s) STATIC,STRICTFP,SUPER,SWITCH,SYNCHRONIZED,IDENTIFIER were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'f'": FINAL, FINALLY, FLOAT, FOR, FALSE, IDEN TIFIER As a result, token(s) FINALLY,FLOAT,FOR,FALSE,IDENTIFIER were disabled for that input warning(209): Java.g:1787:1: Multiple token rules can match input such as "'^'": CARET, CARETEQ As a result, token(s) CARETEQ were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'g'": GOTO, IDENTIFIER As a result, token(s) IDENTIFIER were disabled for that input warning(209): Java.g:1783:1: Multiple token rules can match input such as "'|'": BARBAR, BAR, BAREQ As a result, token(s) BAR,BAREQ were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'c'": CASE, CATCH, CHAR, CLASS, CONST, CONTIN UE, IDENTIFIER As a result, token(s) CATCH,CHAR,CLASS,CONST,CONTINUE,IDENTIFIER were disabled for that input warning(209): Java.g:1711:1: Multiple token rules can match input such as "'='": EQ, EQEQ As a result, token(s) EQEQ were disabled for that input warning(209): Java.g:1763:1: Multiple token rules can match input such as "'+'": PLUSPLUS, PLUS, PLUSEQ As a result, token(s) PLUS,PLUSEQ were disabled for that input warning(209): Java.g:1767:1: Multiple token rules can match input such as "'-'": SUBSUB, SUB, SUBEQ As a result, token(s) SUB,SUBEQ were disabled for that input warning(209): Java.g:1811:1: Multiple token rules can match input such as "'v'": VOID, VOLATILE, IDENTIFIER As a result, token(s) VOLATILE,IDENTIFIER were disabled for that input error(208): Java.g:1799:1: The following token definitions can never be matched because prior tokens match the same inpu t: INTLITERAL,DOUBLELITERAL,LINE_COMMENT,ASSERT,BREAK,BYTE,CATCH,CHAR,CLASS,CONST,CONTINUE,DO,DOUBLE,ENUM,EXTENDS,FINALL Y,FLOAT,FOR,IMPLEMENTS,IMPORT,INSTANCEOF,INT,INTERFACE,NEW,PRIVATE,PROTECTED,PUBLIC,STATIC,STRICTFP,SUPER,SWITCH,SYNCHRO NIZED,THROW,THROWS,TRANSIENT,TRY,VOLATILE,TRUE,FALSE,NULL,DOT,ELLIPSIS,EQEQ,PLUS,SUB,SLASH,AMP,BAR,PLUSEQ,SUBEQ,STAREQ,S LASHEQ,AMPEQ,BAREQ,CARETEQ,PERCENTEQ,BANGEQ </code></pre> <p>any help?</p>
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