Package com.sun.msv.grammar

Examples of com.sun.msv.grammar.Expression

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        else
            return exp;
    }

    public Expression onAttribute(AttributeExp exp) {
        Expression content = exp.exp.visit(this);
        if (content == Expression.nullSet)
            return Expression.nullSet; // this attribute is not allowed
        else
            return pool.createAttribute(exp.nameClass, content);
    }
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    private final String diagnoseUnexpectedLiteral( StringToken token ) {
        final StringRecoveryToken srt = new StringRecoveryToken(token);
       
        // this residual corresponds to the expression we get
        // when we replace thie unexpected token by one of expected tokens.
        Expression recoveryResidual
            = docDecl.resCalc.calcResidual(expression,srt);
       
        if( recoveryResidual==Expression.nullSet )
            // we now know that no string literal was expected at all.
            return docDecl.localizeMessage( REDocumentDeclaration.DIAG_STRING_NOT_ALLOWED, null );
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    protected final DeclImpl[]        owners;
   
    /** helper function for constructor */
    private static Expression createCombined( ExpressionPool pool, DeclImpl[] rules ) {
        Expression exp = Expression.nullSet;
        for( int i=0; i<rules.length; i++ )
            exp = pool.createChoice( exp, rules[i].exp );
        return exp;
    }
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            OptimizationTag ot;
            if(exp.verifierTag==null)
                exp.verifierTag = ot = new OptimizationTag();
            else {
                ot = (OptimizationTag)exp.verifierTag;
                Expression residual = (Expression)ot.simpleElementTokenResidual.get(token.acceptedPatterns[0]);
                if(residual!=null)
                    return residual;    // cache hit.
            }
           
            this.token = token;
            Expression residual = exp.visit(this);
            // cache this residual
            ot.simpleElementTokenResidual.put(token.acceptedPatterns[0],residual);
            return residual;
        }
       
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    public final Expression calcResidual( Expression exp, Token token ) {
        if( token instanceof ElementToken )
            return calcResidual(exp,(ElementToken)token);
       
        this.token=token;
        Expression r = exp.visit(this);

        // if token is ignorable, make expression as so.
        if( token.isIgnorable() )
            r = pool.createChoice(r,exp);
       
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    }
    public Expression onOther( OtherExp exp ) {
        return exp.exp.visit(this);
    }
    public Expression onSequence( SequenceExp exp ) {
        Expression r = pool.createSequence( exp.exp1.visit(this), exp.exp2 );
       
        if( exp.exp1.isEpsilonReducible() )
            return pool.createChoice( r, exp.exp2.visit(this) );
        else
            return r;
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        // reduce A+ -> A
        return exp.exp.visit(this);
    }
   
    public Expression onSequence( SequenceExp exp ) {
        Expression ex1 = exp.exp1.visit(this);
        Expression ex2 = exp.exp2.visit(this);
       
        if(ex1.isEpsilonReducible()) {
            if(ex2.isEpsilonReducible())    return Expression.epsilon;
            else                            return ex2;
        }
        else
            return ex1;
    }
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        else
            return ex1;
    }
   
    public Expression onInterleave( InterleaveExp exp ) {
        Expression ex1 = exp.exp1.visit(this);
        Expression ex2 = exp.exp2.visit(this);
       
        if(ex1.isEpsilonReducible()) {
            if(ex2.isEpsilonReducible())    return Expression.epsilon;
            else                            return ex2;
        } else
            return ex1;
    }
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        // abandon concur.
        return Expression.epsilon;
    }
   
    public Expression onChoice( ChoiceExp exp ) {
        Expression ex1 = exp.exp1.visit(this);
        Expression ex2 = exp.exp2.visit(this);
        // if one of choice is epsilon-reducible,
        // the entire choice becomes optional.
        // optional attributes have to be removed from the result.
        if( ex1.isEpsilonReducible() || ex2.isEpsilonReducible() )
            return Expression.epsilon;
        return pool.createChoice(ex1,ex2);
    }
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            return pool.createZeroOrMore(pool.createAttribute(name));
           
        case STRICT:
        case LAX:
           
            Expression exp = Expression.epsilon;
            LaxDefaultNameClass laxNc = new LaxDefaultNameClass(name);
           
            Iterator itr = grammar.iterateSchemas();
            while( itr.hasNext() ) {
                XMLSchemaSchema schema = (XMLSchemaSchema)itr.next();
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Related Classes of com.sun.msv.grammar.Expression

  • com.sun.msv.generator.Driver
  • com.sun.msv.generator.NoneTypeRemover
  • com.sun.msv.grammar.util.RefExpRemover
  • com.sun.msv.grammar.xmlschema.AttributeWildcard
  • com.sun.msv.reader.dtd.DTDReader
  • com.sun.msv.reader.ExpressionState
  • com.sun.msv.reader.relax.core.AttributeState
  • com.sun.msv.reader.relax.core.checker.IdAbuseChecker
  • com.sun.msv.reader.relax.core.InlineElementState
  • com.sun.msv.reader.relax.core.RELAXCoreReader
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