xmldtdvalidator.java

来自「JAVA的一些源码 JAVA2 STANDARD EDITION DEVELO」· Java 代码 · 共 1,655 行 · 第 1/5 页

            if (attributes.isSpecified(i) && type != XMLSymbols.fCDATASymbol) {
                changedByNormalization = normalizeAttrValue(attributes, i);
                attrValue = attributes.getValue(i);
                if (fPerformValidation && fGrammarBucket.getStandalone()
                    && changedByNormalization 
                    && fDTDGrammar.getAttributeDeclIsExternal(position)
                   ) {
                    // check VC: Standalone Document Declaration
                    fErrorReporter.reportError(XMLMessageFormatter.XML_DOMAIN,
                                               "MSG_ATTVALUE_CHANGED_DURING_NORMALIZATION_WHEN_STANDALONE",
                                               new Object[]{attrRawName, oldValue, attrValue},
                                               XMLErrorReporter.SEVERITY_ERROR);
                }
            }
            if (!fPerformValidation) {
                continue;
            }
            if (fTempAttDecl.simpleType.defaultType ==
                XMLSimpleType.DEFAULT_TYPE_FIXED) {
                String defaultValue = fTempAttDecl.simpleType.defaultValue;

                if (!attrValue.equals(defaultValue)) {
                    Object[] args = {elementName.localpart,
                        attrRawName,
                        attrValue,
                        defaultValue};
                    fErrorReporter.reportError(XMLMessageFormatter.XML_DOMAIN,
                                               "MSG_FIXED_ATTVALUE_INVALID",
                                               args, XMLErrorReporter.SEVERITY_ERROR);
                }
            }

            if (fTempAttDecl.simpleType.type == XMLSimpleType.TYPE_ENTITY ||
                fTempAttDecl.simpleType.type == XMLSimpleType.TYPE_ENUMERATION ||
                fTempAttDecl.simpleType.type == XMLSimpleType.TYPE_ID ||
                fTempAttDecl.simpleType.type == XMLSimpleType.TYPE_IDREF ||
                fTempAttDecl.simpleType.type == XMLSimpleType.TYPE_NMTOKEN ||
                fTempAttDecl.simpleType.type == XMLSimpleType.TYPE_NOTATION
               ) {
                validateDTDattribute(elementName, attrValue, fTempAttDecl);
            }
        } // for all attributes

    } // addDTDDefaultAttrsAndValidate(int,XMLAttrList)

    /** Checks entities in attribute values for standalone VC. */
    protected String getExternalEntityRefInAttrValue(String nonNormalizedValue) {
        int valLength = nonNormalizedValue.length();
        int ampIndex = nonNormalizedValue.indexOf('&');
        while (ampIndex != -1) {
            if (ampIndex + 1 < valLength &&
                nonNormalizedValue.charAt(ampIndex+1) != '#') {
                int semicolonIndex = nonNormalizedValue.indexOf(';', ampIndex+1);
                String entityName = nonNormalizedValue.substring(ampIndex+1, semicolonIndex);
                entityName = fSymbolTable.addSymbol(entityName);
                int entIndex = fDTDGrammar.getEntityDeclIndex(entityName);
                if (entIndex > -1) {
                    fDTDGrammar.getEntityDecl(entIndex, fEntityDecl);
                    if (fEntityDecl.inExternal || 
                        (entityName = getExternalEntityRefInAttrValue(fEntityDecl.value)) != null) {
                        return entityName;
                    }
                }
            }
            ampIndex = nonNormalizedValue.indexOf('&', ampIndex+1);
        }
        return null;
    } // isExternalEntityRefInAttrValue(String):String

    /**
     * Validate attributes in DTD fashion.
     */
    protected void validateDTDattribute(QName element, String attValue,
                                      XMLAttributeDecl attributeDecl) 
    throws XNIException {

        switch (attributeDecl.simpleType.type) {
        case XMLSimpleType.TYPE_ENTITY: {                            
                // NOTE: Save this information because invalidStandaloneAttDef
                boolean isAlistAttribute = attributeDecl.simpleType.list;

                try {
                    if (isAlistAttribute) {
                        fValENTITIES.validate(attValue, fValidationState);
                    }
                    else {
                        fValENTITY.validate(attValue, fValidationState);
                    }
                }
                catch (InvalidDatatypeValueException ex) {
                    fErrorReporter.reportError(XMLMessageFormatter.XML_DOMAIN,
                                               ex.getKey(),
                                               ex.getArgs(),
                                               XMLErrorReporter.SEVERITY_ERROR );

                }
                break;
            }

        case XMLSimpleType.TYPE_NOTATION:
        case XMLSimpleType.TYPE_ENUMERATION: {
                boolean found = false;
                String [] enumVals = attributeDecl.simpleType.enumeration;
                if (enumVals == null) {
                    found = false;
                }
                else
                    for (int i = 0; i < enumVals.length; i++) {
                        if (attValue == enumVals[i] || attValue.equals(enumVals[i])) {
                            found = true;
                            break;
                        }
                    }

                if (!found) {
                    StringBuffer enumValueString = new StringBuffer();
                    if (enumVals != null)
                        for (int i = 0; i < enumVals.length; i++) {
                            enumValueString.append(enumVals[i]+" ");
                        }
                    fErrorReporter.reportError(XMLMessageFormatter.XML_DOMAIN, 
                                               "MSG_ATTRIBUTE_VALUE_NOT_IN_LIST",
                                               new Object[]{attributeDecl.name.rawname, attValue, enumValueString},
                                               XMLErrorReporter.SEVERITY_ERROR);
                }
                break;
            }

        case XMLSimpleType.TYPE_ID: {
                try {
                    fValID.validate(attValue, fValidationState);
                }
                catch (InvalidDatatypeValueException ex) {
                    fErrorReporter.reportError(XMLMessageFormatter.XML_DOMAIN,
                                               ex.getKey(),
                                               ex.getArgs(),
                                               XMLErrorReporter.SEVERITY_ERROR );
                }
                break;
            }

        case XMLSimpleType.TYPE_IDREF: {
                boolean isAlistAttribute = attributeDecl.simpleType.list;//Caveat - Save this information because invalidStandaloneAttDef

                try {
                    if (isAlistAttribute) {
                        fValIDRefs.validate(attValue, fValidationState);
                    }
                    else {
                        fValIDRef.validate(attValue, fValidationState);
                    }
                }
                catch (InvalidDatatypeValueException ex) {
                    if (isAlistAttribute) {
                        fErrorReporter.reportError(XMLMessageFormatter.XML_DOMAIN,
                                                   "IDREFSInvalid",
                                                   new Object[]{attValue},
                                                   XMLErrorReporter.SEVERITY_ERROR );
                    }
                    else {
                        fErrorReporter.reportError(XMLMessageFormatter.XML_DOMAIN,
                                                   ex.getKey(),
                                                   ex.getArgs(),
                                                   XMLErrorReporter.SEVERITY_ERROR );
                    }

                }
                break;
            }

        case XMLSimpleType.TYPE_NMTOKEN: {
                boolean isAlistAttribute = attributeDecl.simpleType.list;//Caveat - Save this information because invalidStandaloneAttDef
                //changes fTempAttDef
                try {
                    if (isAlistAttribute) {
                        fValNMTOKENS.validate(attValue, fValidationState);
                    }
                    else {
                        fValNMTOKEN.validate(attValue, fValidationState);
                    }
                }
                catch (InvalidDatatypeValueException ex) {
                    if (isAlistAttribute) {
                        fErrorReporter.reportError(XMLMessageFormatter.XML_DOMAIN,
                                                   "NMTOKENSInvalid",
                                                   new Object[] { attValue},
                                                   XMLErrorReporter.SEVERITY_ERROR);
                    }
                    else {
                        fErrorReporter.reportError(XMLMessageFormatter.XML_DOMAIN,
                                                   "NMTOKENInvalid",
                                                   new Object[] { attValue},
                                                   XMLErrorReporter.SEVERITY_ERROR);
                    }
                }
                break;
            }

        } // switch

    } // validateDTDattribute(QName,String,XMLAttributeDecl)


    /** Returns true if invalid standalone attribute definition. */
    protected boolean invalidStandaloneAttDef(QName element, QName attribute) {
        // REVISIT: This obviously needs to be fixed! -Ac
        boolean state = true;
        /*
       if (fStandaloneReader == -1) {
          return false;
       }
       // we are normalizing a default att value...  this ok?
       if (element.rawname == -1) {
          return false;
       }
       return getAttDefIsExternal(element, attribute);
       */
        return state;
    }


    //
    // Private methods
    //


    /**
     * Normalize the attribute value of a non CDATA attributes collapsing
     * sequences of space characters (x20)
     *
     * @param attributes The list of attributes
     * @param index The index of the attribute to normalize
     */
    private boolean normalizeAttrValue(XMLAttributes attributes, int index) {
        // vars
        boolean leadingSpace = true;
        boolean spaceStart = false;
        boolean readingNonSpace = false;
        int count = 0;
        int eaten = 0;
        String attrValue = attributes.getValue(index);
        char[] attValue = new char[attrValue.length()];

        fBuffer.setLength(0);
        attrValue.getChars(0, attrValue.length(), attValue, 0);
        for (int i = 0; i < attValue.length; i++) {

            if (attValue[i] == ' ') {

                // now the tricky part
                if (readingNonSpace) {
                    spaceStart = true;
                    readingNonSpace = false;
                }

                if (spaceStart && !leadingSpace) {
                    spaceStart = false;
                    fBuffer.append(attValue[i]);
                    count++;
                }
                else {
                    if (leadingSpace || !spaceStart) {
                        eaten ++;
                        /*** BUG #3512 ***
                        int entityCount = attributes.getEntityCount(index);
                        for (int j = 0;  j < entityCount; j++) {
                            int offset = attributes.getEntityOffset(index, j);
                            int length = attributes.getEntityLength(index, j);
                            if (offset <= i-eaten+1) {
                                if (offset+length >= i-eaten+1) {
                                    if (length > 0)
                                        length--;
                                }
                            } 
                            else {
                                if (offset > 0)
                                    offset--;
                            }
                            attributes.setEntityOffset(index, j, offset);
                            attributes.setEntityLength(index, j, length);
                        }
                        /***/
                    }
                }

            }
            else {
                readingNonSpace = true;
                spaceStart = false;
                leadingSpace = false;
                fBuffer.append(attValue[i]);
                count++;
            }
        }

        // check if the last appended character is a space.
        if (count > 0 && fBuffer.charAt(count-1) == ' ') {
            fBuffer.setLength(count-1);
            /*** BUG #3512 ***
            int entityCount = attributes.getEntityCount(index);
            for (int j=0;  j < entityCount; j++) {
                int offset = attributes.getEntityOffset(index, j);
                int length = attributes.getEntityLength(index, j);
                if (offset < count-1) {
                    if (offset+length == count) {
                        length--;
                    }
                } 
                else {
                    offset--;
                }
                attributes.setEntityOffset(index, j, offset);
                attributes.setEntityLength(index, j, length);
            }
            /***/
        }
        String newValue = fBuffer.toString();
        attributes.setValue(index, newValue);
        return ! attrValue.equals(newValue);
    }

    /** Root element specified. */
    private final void rootElementSpecified(QName rootElement) throws XNIException {
        if (fPerformValidation) {
            String root1 = fRootElement.rawname;
            String root2 = rootElement.rawname;
            if (root1 == null || !root1.equals(root2)) {
                fErrorReporter.reportError( XMLMessageFormatter.XML_DOMAIN, 
                                            "RootElementTypeMustMatchDoctypedecl", 
                                            new Object[]{root1, root2},