Package org.antlr.runtime

Examples of org.antlr.runtime.TokenStream

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    public void testRuleParseLhs() throws Exception {
        final String text = "Person(age < 42, location==\"atlanta\") \nor\nPerson(name==\"bob\") \n";
        final AndDescr descrs = new AndDescr();
        final CharStream charStream = new ANTLRStringStream( text );
        final DRLLexer lexer = new DRLLexer( charStream );
        final TokenStream tokenStream = new CommonTokenStream( lexer );
        final DRLParser parser = new DRLParser( tokenStream );
        parser.setLineOffset( descrs.getLine() );
        parser.normal_lhs_block( descrs );
        if ( parser.hasErrors() ) {
            System.err.println( parser.getErrorMessages() );
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    public void testMemberof() throws Exception {
        final String text = "Country( $cities : city )\nPerson( city memberOf $cities )\n";
        final AndDescr descrs = new AndDescr();
        final CharStream charStream = new ANTLRStringStream( text );
        final DRLLexer lexer = new DRLLexer( charStream );
        final TokenStream tokenStream = new CommonTokenStream( lexer );
        final DRLParser parser = new DRLParser( tokenStream );
        parser.setLineOffset( descrs.getLine() );
        parser.normal_lhs_block( descrs );
        if ( parser.hasErrors() ) {
            System.err.println( parser.getErrorMessages() );
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    public void testNotMemberof() throws Exception {
        final String text = "Country( $cities : city )\nPerson( city not memberOf $cities )\n";
        final AndDescr descrs = new AndDescr();
        final CharStream charStream = new ANTLRStringStream( text );
        final DRLLexer lexer = new DRLLexer( charStream );
        final TokenStream tokenStream = new CommonTokenStream( lexer );
        final DRLParser parser = new DRLParser( tokenStream );
        parser.setLineOffset( descrs.getLine() );
        parser.normal_lhs_block( descrs );
        if ( parser.hasErrors() ) {
            System.err.println( parser.getErrorMessages() );
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    public void testConstraintAndConnective() throws Exception {
        final String text = "Person( age < 42 && location==\"atlanta\")";
        final CharStream charStream = new ANTLRStringStream( text );
        final DRLLexer lexer = new DRLLexer( charStream );
        final TokenStream tokenStream = new CommonTokenStream( lexer );
        final DRLParser parser = new DRLParser( tokenStream );

        PatternDescr pattern = (PatternDescr) parser.fact( null );
        assertFalse( parser.getErrorMessages().toString(),
                     parser.hasErrors() );
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    public void testConstraintOrConnective() throws Exception {
        final String text = "Person( age < 42 || location==\"atlanta\")";
        final CharStream charStream = new ANTLRStringStream( text );
        final DRLLexer lexer = new DRLLexer( charStream );
        final TokenStream tokenStream = new CommonTokenStream( lexer );
        final DRLParser parser = new DRLParser( tokenStream );

        PatternDescr pattern = (PatternDescr) parser.fact( null );
        assertFalse( parser.getErrorMessages().toString(),
                     parser.hasErrors() );
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    public void testConstraintConnectivesPrecedence() throws Exception {
        final String text = "Person( age < 42 && location==\"atlanta\" || age > 20 && location==\"Seatle\" || location == \"Chicago\")";
        final CharStream charStream = new ANTLRStringStream( text );
        final DRLLexer lexer = new DRLLexer( charStream );
        final TokenStream tokenStream = new CommonTokenStream( lexer );
        final DRLParser parser = new DRLParser( tokenStream );

        PatternDescr pattern = (PatternDescr) parser.fact( null );
        assertFalse( parser.getErrorMessages().toString(),
                     parser.hasErrors() );
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    public void testConstraintConnectivesPrecedenceWithBracks() throws Exception {
        final String text = "Person( age < 42 && ( location==\"atlanta\" || age > 20 && location==\"Seatle\") || location == \"Chicago\")";
        final CharStream charStream = new ANTLRStringStream( text );
        final DRLLexer lexer = new DRLLexer( charStream );
        final TokenStream tokenStream = new CommonTokenStream( lexer );
        final DRLParser parser = new DRLParser( tokenStream );

        PatternDescr pattern = (PatternDescr) parser.fact( null );
        assertFalse( parser.getErrorMessages().toString(),
                     parser.hasErrors() );
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    public void testConstraintConnectivesPrecedenceWithBracks2() throws Exception {
        final String text = "Person( ( age == 70 && hair == \"black\" ) || ( age == 40 && hair == \"pink\" ) || ( age == 12 && ( hair == \"yellow\" || hair == \"blue\" ) ) )";
        final CharStream charStream = new ANTLRStringStream( text );
        final DRLLexer lexer = new DRLLexer( charStream );
        final TokenStream tokenStream = new CommonTokenStream( lexer );
        final DRLParser parser = new DRLParser( tokenStream );

        PatternDescr pattern = (PatternDescr) parser.fact( null );
        assertFalse( parser.getErrorMessages().toString(),
                     parser.hasErrors() );
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        //                                            FC       FC
        //
        final String text = "Person( ( age ( > 60 && < 70 ) || ( > 50 && < 55 ) && hair == \"black\" ) || ( age == 40 && hair == \"pink\" ) || ( age == 12 && ( hair == \"yellow\" || hair == \"blue\" ) ))";
        final CharStream charStream = new ANTLRStringStream( text );
        final DRLLexer lexer = new DRLLexer( charStream );
        final TokenStream tokenStream = new CommonTokenStream( lexer );
        final DRLParser parser = new DRLParser( tokenStream );

        PatternDescr pattern = (PatternDescr) parser.fact( null );
        assertFalse( parser.getErrorMessages().toString(),
                     parser.hasErrors() );
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    public void testConstraintConnectivesMatches() throws Exception {
        final String text = "Person( name matches \"mark\" || matches \"bob\" )";
        final CharStream charStream = new ANTLRStringStream( text );
        final DRLLexer lexer = new DRLLexer( charStream );
        final TokenStream tokenStream = new CommonTokenStream( lexer );
        final DRLParser parser = new DRLParser( tokenStream );

        PatternDescr pattern = (PatternDescr) parser.fact( null );
        assertFalse( parser.getErrorMessages().toString(),
                     parser.hasErrors() );
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