ruleparser.java

jboss规则引擎

            	    break;

            	default :
            	    break loop1;
                }
            } while (true);


            }

        }
        catch (RecognitionException re) {
            reportError(re);
            recover(input,re);
        }
        finally {
        }
        return ;
    }
    // $ANTLR end opt_eol


    // $ANTLR start compilation_unit
    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:279:1: compilation_unit : opt_eol prolog (r= rule | q= query | extra_statement )* ;
    public void compilation_unit() throws RecognitionException {   
        RuleDescr r = null;

        QueryDescr q = null;


        try {
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:280:17: ( opt_eol prolog (r= rule | q= query | extra_statement )* )
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:280:17: opt_eol prolog (r= rule | q= query | extra_statement )*
            {
            following.push(FOLLOW_opt_eol_in_compilation_unit57);
            opt_eol();
            following.pop();

            following.push(FOLLOW_prolog_in_compilation_unit61);
            prolog();
            following.pop();

            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:282:17: (r= rule | q= query | extra_statement )*
            loop2:
            do {
                int alt2=4;
                alt2 = dfa2.predict(input); 
                switch (alt2) {
            	case 1 :
            	    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:282:25: r= rule
            	    {
            	    following.push(FOLLOW_rule_in_compilation_unit70);
            	    r=rule();
            	    following.pop();

            	    this.packageDescr.addRule( r ); 

            	    }
            	    break;
            	case 2 :
            	    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:283:25: q= query
            	    {
            	    following.push(FOLLOW_query_in_compilation_unit83);
            	    q=query();
            	    following.pop();

            	    this.packageDescr.addRule( q ); 

            	    }
            	    break;
            	case 3 :
            	    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:284:25: extra_statement
            	    {
            	    following.push(FOLLOW_extra_statement_in_compilation_unit91);
            	    extra_statement();
            	    following.pop();


            	    }
            	    break;

            	default :
            	    break loop2;
                }
            } while (true);


            }

        }
        catch (RecognitionException re) {
            reportError(re);
            recover(input,re);
        }
        finally {
        }
        return ;
    }
    // $ANTLR end compilation_unit


    // $ANTLR start prolog
    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:288:1: prolog : opt_eol (name= package_statement )? ( extra_statement | expander )* opt_eol ;
    public void prolog() throws RecognitionException {   
        String name = null;



        		String packageName = "";
        	
        try {
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:292:17: ( opt_eol (name= package_statement )? ( extra_statement | expander )* opt_eol )
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:292:17: opt_eol (name= package_statement )? ( extra_statement | expander )* opt_eol
            {
            following.push(FOLLOW_opt_eol_in_prolog115);
            opt_eol();
            following.pop();

            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:293:17: (name= package_statement )?
            int alt3=2;
            int LA3_0 = input.LA(1);
            if ( LA3_0==16 ) {
                alt3=1;
            }
            else if ( LA3_0==-1||LA3_0==EOL||LA3_0==15||LA3_0==17||(LA3_0>=20 && LA3_0<=22)||LA3_0==28||LA3_0==30 ) {
                alt3=2;
            }
            else {
                NoViableAltException nvae =
                    new NoViableAltException("293:17: (name= package_statement )?", 3, 0, input);

                throw nvae;
            }
            switch (alt3) {
                case 1 :
                    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:293:19: name= package_statement
                    {
                    following.push(FOLLOW_package_statement_in_prolog123);
                    name=package_statement();
                    following.pop();

                     packageName = name; 

                    }
                    break;

            }

             
            			this.packageDescr = new PackageDescr( name ); 
            		
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:297:17: ( extra_statement | expander )*
            loop4:
            do {
                int alt4=3;
                alt4 = dfa4.predict(input); 
                switch (alt4) {
            	case 1 :
            	    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:297:25: extra_statement
            	    {
            	    following.push(FOLLOW_extra_statement_in_prolog138);
            	    extra_statement();
            	    following.pop();


            	    }
            	    break;
            	case 2 :
            	    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:298:25: expander
            	    {
            	    following.push(FOLLOW_expander_in_prolog144);
            	    expander();
            	    following.pop();


            	    }
            	    break;

            	default :
            	    break loop4;
                }
            } while (true);

            following.push(FOLLOW_opt_eol_in_prolog156);
            opt_eol();
            following.pop();


            }

        }
        catch (RecognitionException re) {
            reportError(re);
            recover(input,re);
        }
        finally {
        }
        return ;
    }
    // $ANTLR end prolog


    // $ANTLR start package_statement
    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:304:1: package_statement returns [String packageName] : 'package' opt_eol name= dotted_name ( ';' )? opt_eol ;
    public String package_statement() throws RecognitionException {   
        String packageName;
        String name = null;



        		packageName = null;
        	
        try {
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:309:17: ( 'package' opt_eol name= dotted_name ( ';' )? opt_eol )
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:309:17: 'package' opt_eol name= dotted_name ( ';' )? opt_eol
            {
            match(input,16,FOLLOW_16_in_package_statement180); 
            following.push(FOLLOW_opt_eol_in_package_statement182);
            opt_eol();
            following.pop();

            following.push(FOLLOW_dotted_name_in_package_statement186);
            name=dotted_name();
            following.pop();

            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:309:52: ( ';' )?
            int alt5=2;
            int LA5_0 = input.LA(1);
            if ( LA5_0==15 ) {
                alt5=1;
            }
            else if ( LA5_0==-1||LA5_0==EOL||LA5_0==17||(LA5_0>=20 && LA5_0<=22)||LA5_0==28||LA5_0==30 ) {
                alt5=2;
            }
            else {
                NoViableAltException nvae =
                    new NoViableAltException("309:52: ( \';\' )?", 5, 0, input);

                throw nvae;
            }
            switch (alt5) {
                case 1 :
                    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:309:52: ';'
                    {
                    match(input,15,FOLLOW_15_in_package_statement188); 

                    }
                    break;

            }

            following.push(FOLLOW_opt_eol_in_package_statement191);
            opt_eol();
            following.pop();


            			packageName = name;
            		

            }

        }
        catch (RecognitionException re) {
            reportError(re);
            recover(input,re);
        }
        finally {
        }
        return packageName;
    }
    // $ANTLR end package_statement


    // $ANTLR start import_statement
    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:315:1: import_statement : 'import' opt_eol name= import_name ( ';' )? opt_eol ;
    public void import_statement() throws RecognitionException {   
        String name = null;


        try {
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:316:17: ( 'import' opt_eol name= import_name ( ';' )? opt_eol )
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:316:17: 'import' opt_eol name= import_name ( ';' )? opt_eol
            {
            match(input,17,FOLLOW_17_in_import_statement207); 
            following.push(FOLLOW_opt_eol_in_import_statement209);
            opt_eol();
            following.pop();

            following.push(FOLLOW_import_name_in_import_statement213);
            name=import_name();
            following.pop();

            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:316:51: ( ';' )?
            int alt6=2;
            int LA6_0 = input.LA(1);
            if ( LA6_0==15 ) {
                alt6=1;
            }
            else if ( LA6_0==-1||LA6_0==EOL||LA6_0==17||(LA6_0>=20 && LA6_0<=22)||LA6_0==28||LA6_0==30 ) {
                alt6=2;
            }
            else {
                NoViableAltException nvae =
                    new NoViableAltException("316:51: ( \';\' )?", 6, 0, input);

                throw nvae;
            }
            switch (alt6) {
                case 1 :
                    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:316:51: ';'
                    {
                    match(input,15,FOLLOW_15_in_import_statement215); 

                    }
                    break;

            }

            following.push(FOLLOW_opt_eol_in_import_statement218);
            opt_eol();
            following.pop();


            			if (packageDescr != null) 
            				packageDescr.addImport( name );
            		

            }

        }
        catch (RecognitionException re) {
            reportError(re);
            recover(input,re);
        }