protected int nextInEntity()

in batik-xml/src/main/java/org/apache/batik/xml/XMLScanner.java [1766:1865]
86 lines of code
34 McCabe index (conditional complexity)

    protected int nextInEntity() throws IOException, XMLException {
        switch (current) {
        case 0x9:
        case 0xA:
        case 0xD:
        case 0x20:
            do {
                nextChar();
            } while (current != -1 &&
                     XMLUtilities.isXMLSpace((char)current));
            return LexicalUnits.S;

        case '>':
            nextChar();
            context = DTD_DECLARATIONS_CONTEXT;
            return LexicalUnits.END_CHAR;

        case '%':
            nextChar();
            return LexicalUnits.PERCENT;

        case 'S':
            return readIdentifier("YSTEM",
                                  LexicalUnits.SYSTEM_IDENTIFIER,
                                  LexicalUnits.NAME);

        case 'P':
            return readIdentifier("UBLIC",
                                  LexicalUnits.PUBLIC_IDENTIFIER,
                                  LexicalUnits.NAME);

        case 'N':
            return readIdentifier("DATA",
                                  LexicalUnits.NDATA_IDENTIFIER,
                                  LexicalUnits.NAME);

        case '"':
            attrDelimiter = '"';
            nextChar();
            if (current == -1) {
                throw createXMLException("unexpected.eof");
            }

            if (current != '"' && current != '&' && current != '%') {
                do {
                    nextChar();
                } while (current != -1 &&
                         current != '"' &&
                         current != '&' &&
                         current != '%');
            }
            switch (current) {
            default:
                throw createXMLException("invalid.character");

            case '&':
            case '%':
                context = ENTITY_VALUE_CONTEXT;
                break;

            case '"':
                nextChar();
                return LexicalUnits.STRING;
            }
            return LexicalUnits.FIRST_ATTRIBUTE_FRAGMENT;

        case '\'':
            attrDelimiter = '\'';
            nextChar();
            if (current == -1) {
                throw createXMLException("unexpected.eof");
            }

            if (current != '\'' && current != '&' && current != '%') {
                do {
                    nextChar();
                } while (current != -1 &&
                         current != '\'' &&
                         current != '&' &&
                         current != '%');
            }
            switch (current) {
            default:
                throw createXMLException("invalid.character");

            case '&':
            case '%':
                context = ENTITY_VALUE_CONTEXT;
                break;

            case '\'':
                nextChar();
                return LexicalUnits.STRING;
            }
            return LexicalUnits.FIRST_ATTRIBUTE_FRAGMENT;

        default:
            return readName(LexicalUnits.NAME);
        }
    }