Examples with XmlPullParserException org.xmlpull.v1.XmlPullParserException used on opensource projects

Example 76 with XmlPullParserException

use of org.xmlpull.v1.XmlPullParserException in project j2objc by google.

the class KXmlParser method readValue.

/**
     * Returns the current text or attribute value. This also has the side
     * effect of setting isWhitespace to false if a non-whitespace character is
     * encountered.
     *
     * @param delimiter {@code <} for text, {@code "} and {@code '} for quoted
     *     attributes, or a space for unquoted attributes.
     */
private String readValue(char delimiter, boolean resolveEntities, boolean throwOnResolveFailure, ValueContext valueContext) throws IOException, XmlPullParserException {
    /*
         * This method returns all of the characters from the current position
         * through to an appropriate delimiter.
         *
         * If we're lucky (which we usually are), we'll return a single slice of
         * the buffer. This fast path avoids allocating a string builder.
         *
         * There are 6 unlucky characters we could encounter:
         *  - "&":  entities must be resolved.
         *  - "%":  parameter entities are unsupported in entity values.
         *  - "<":  this isn't permitted in attributes unless relaxed.
         *  - "]":  this requires a lookahead to defend against the forbidden
         *          CDATA section delimiter "]]>".
         *  - "\r": If a "\r" is followed by a "\n", we discard the "\r". If it
         *          isn't followed by "\n", we replace "\r" with either a "\n"
         *          in text nodes or a space in attribute values.
         *  - "\n": In attribute values, "\n" must be replaced with a space.
         *
         * We could also get unlucky by needing to refill the buffer midway
         * through the text.
         */
    int start = position;
    StringBuilder result = null;
    // if a text section was already started, prefix the start
    if (valueContext == ValueContext.TEXT && text != null) {
        result = new StringBuilder();
        result.append(text);
    }
    while (true) {
        /*
             * Make sure we have at least a single character to read from the
             * buffer. This mutates the buffer, so save the partial result
             * to the slow path string builder first.
             */
        if (position >= limit) {
            if (start < position) {
                if (result == null) {
                    result = new StringBuilder();
                }
                result.append(buffer, start, position - start);
            }
            if (!fillBuffer(1)) {
                return result != null ? result.toString() : "";
            }
            start = position;
        }
        char c = buffer[position];
        if (c == delimiter || (delimiter == ' ' && (c <= ' ' || c == '>')) || c == '&' && !resolveEntities) {
            break;
        }
        if (c != '\r' && (c != '\n' || valueContext != ValueContext.ATTRIBUTE) && c != '&' && c != '<' && (c != ']' || valueContext != ValueContext.TEXT) && (c != '%' || valueContext != ValueContext.ENTITY_DECLARATION)) {
            isWhitespace &= (c <= ' ');
            position++;
            continue;
        }
        /*
             * We've encountered an unlucky character! Convert from fast
             * path to slow path if we haven't done so already.
             */
        if (result == null) {
            result = new StringBuilder();
        }
        result.append(buffer, start, position - start);
        if (c == '\r') {
            if ((position + 1 < limit || fillBuffer(2)) && buffer[position + 1] == '\n') {
                position++;
            }
            c = (valueContext == ValueContext.ATTRIBUTE) ? ' ' : '\n';
        } else if (c == '\n') {
            c = ' ';
        } else if (c == '&') {
            // TODO: what if the entity resolves to whitespace?
            isWhitespace = false;
            readEntity(result, false, throwOnResolveFailure, valueContext);
            start = position;
            continue;
        } else if (c == '<') {
            if (valueContext == ValueContext.ATTRIBUTE) {
                checkRelaxed("Illegal: \"<\" inside attribute value");
            }
            isWhitespace = false;
        } else if (c == ']') {
            if ((position + 2 < limit || fillBuffer(3)) && buffer[position + 1] == ']' && buffer[position + 2] == '>') {
                checkRelaxed("Illegal: \"]]>\" outside CDATA section");
            }
            isWhitespace = false;
        } else if (c == '%') {
            throw new XmlPullParserException("This parser doesn't support parameter entities", this, null);
        } else {
            throw new AssertionError();
        }
        position++;
        result.append(c);
        start = position;
    }
    if (result == null) {
        return stringPool.get(buffer, start, position - start);
    } else {
        result.append(buffer, start, position - start);
        return result.toString();
    }
}

Example 77 with XmlPullParserException

use of org.xmlpull.v1.XmlPullParserException in project j2objc by google.

the class Driver method parseSubTree.

public void parseSubTree(XmlPullParser pp) throws SAXException, IOException {
    this.pp = pp;
    final boolean namespaceAware = pp.getFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES);
    try {
        if (pp.getEventType() != XmlPullParser.START_TAG) {
            throw new SAXException("start tag must be read before skiping subtree" + pp.getPositionDescription());
        }
        final int[] holderForStartAndLength = new int[2];
        final StringBuilder rawName = new StringBuilder(16);
        String prefix = null;
        String name = null;
        int level = pp.getDepth() - 1;
        int type = XmlPullParser.START_TAG;
        LOOP: do {
            switch(type) {
                case XmlPullParser.START_TAG:
                    if (namespaceAware) {
                        final int depth = pp.getDepth() - 1;
                        final int countPrev = (level > depth) ? pp.getNamespaceCount(depth) : 0;
                        //int countPrev = pp.getNamespaceCount(pp.getDepth() - 1);
                        final int count = pp.getNamespaceCount(depth + 1);
                        for (int i = countPrev; i < count; i++) {
                            contentHandler.startPrefixMapping(pp.getNamespacePrefix(i), pp.getNamespaceUri(i));
                        }
                        name = pp.getName();
                        prefix = pp.getPrefix();
                        if (prefix != null) {
                            rawName.setLength(0);
                            rawName.append(prefix);
                            rawName.append(':');
                            rawName.append(name);
                        }
                        startElement(pp.getNamespace(), name, // TODO Fixed this. Was "not equals".
                        prefix == null ? name : rawName.toString());
                    } else {
                        startElement(pp.getNamespace(), pp.getName(), pp.getName());
                    }
                    break;
                case XmlPullParser.TEXT:
                    {
                        final char[] chars = pp.getTextCharacters(holderForStartAndLength);
                        contentHandler.characters(chars, //start
                        holderForStartAndLength[0], //len
                        holderForStartAndLength[1]);
                    }
                    break;
                case XmlPullParser.END_TAG:
                    //--level;
                    if (namespaceAware) {
                        name = pp.getName();
                        prefix = pp.getPrefix();
                        if (prefix != null) {
                            rawName.setLength(0);
                            rawName.append(prefix);
                            rawName.append(':');
                            rawName.append(name);
                        }
                        contentHandler.endElement(pp.getNamespace(), name, prefix != null ? name : rawName.toString());
                        // when entering show prefixes for all levels!!!!
                        final int depth = pp.getDepth();
                        final int countPrev = (level > depth) ? pp.getNamespaceCount(pp.getDepth()) : 0;
                        int count = pp.getNamespaceCount(pp.getDepth() - 1);
                        // undeclare them in reverse order
                        for (int i = count - 1; i >= countPrev; i--) {
                            contentHandler.endPrefixMapping(pp.getNamespacePrefix(i));
                        }
                    } else {
                        contentHandler.endElement(pp.getNamespace(), pp.getName(), pp.getName());
                    }
                    break;
                case XmlPullParser.END_DOCUMENT:
                    break LOOP;
            }
            type = pp.next();
        } while (pp.getDepth() > level);
    } catch (XmlPullParserException ex) {
        final SAXParseException saxException = new SAXParseException("parsing error: " + ex, this, ex);
        ex.printStackTrace();
        errorHandler.fatalError(saxException);
    }
}

Example 78 with XmlPullParserException

use of org.xmlpull.v1.XmlPullParserException in project j2objc by google.

the class KXmlParser method readEntityDeclaration.

/**
     * Read an entity declaration. The value of internal entities are inline:
     *   <!ENTITY foo "bar">
     *
     * The values of external entities must be retrieved by URL or path:
     *   <!ENTITY foo SYSTEM "http://host/file">
     *   <!ENTITY foo PUBLIC "-//Android//Foo//EN" "http://host/file">
     *   <!ENTITY foo SYSTEM "../file.png" NDATA png>
     *
     * Entities may be general or parameterized. Parameterized entities are
     * marked by a percent sign. Such entities may only be used in the DTD:
     *   <!ENTITY % foo "bar">
     */
private void readEntityDeclaration() throws IOException, XmlPullParserException {
    read(START_ENTITY);
    boolean generalEntity = true;
    skip();
    if (peekCharacter() == '%') {
        generalEntity = false;
        position++;
        skip();
    }
    String name = readName();
    skip();
    int quote = peekCharacter();
    String entityValue;
    if (quote == '"' || quote == '\'') {
        position++;
        entityValue = readValue((char) quote, true, false, ValueContext.ENTITY_DECLARATION);
        position++;
    } else if (readExternalId(true, false)) {
        /*
             * Map external entities to the empty string. This is dishonest,
             * but it's consistent with Android's Expat pull parser.
             */
        entityValue = "";
        skip();
        if (peekCharacter() == NDATA[0]) {
            read(NDATA);
            skip();
            readName();
        }
    } else {
        throw new XmlPullParserException("Expected entity value or external ID", this, null);
    }
    if (generalEntity && processDocDecl) {
        if (documentEntities == null) {
            documentEntities = new HashMap<String, char[]>();
        }
        documentEntities.put(name, entityValue.toCharArray());
    }
    skip();
    read('>');
}

Example 79 with XmlPullParserException

use of org.xmlpull.v1.XmlPullParserException in project j2objc by google.

the class KXmlParser method parseStartTag.

/**
     * Sets name and attributes
     */
private void parseStartTag(boolean xmldecl, boolean throwOnResolveFailure) throws IOException, XmlPullParserException {
    if (!xmldecl) {
        read('<');
    }
    name = readName();
    attributeCount = 0;
    while (true) {
        skip();
        if (position >= limit && !fillBuffer(1)) {
            checkRelaxed(UNEXPECTED_EOF);
            return;
        }
        int c = buffer[position];
        if (xmldecl) {
            if (c == '?') {
                position++;
                read('>');
                return;
            }
        } else {
            if (c == '/') {
                degenerated = true;
                position++;
                skip();
                read('>');
                break;
            } else if (c == '>') {
                position++;
                break;
            }
        }
        String attrName = readName();
        int i = (attributeCount++) * 4;
        attributes = ensureCapacity(attributes, i + 4);
        attributes[i] = "";
        attributes[i + 1] = null;
        attributes[i + 2] = attrName;
        skip();
        if (position >= limit && !fillBuffer(1)) {
            checkRelaxed(UNEXPECTED_EOF);
            return;
        }
        if (buffer[position] == '=') {
            position++;
            skip();
            if (position >= limit && !fillBuffer(1)) {
                checkRelaxed(UNEXPECTED_EOF);
                return;
            }
            char delimiter = buffer[position];
            if (delimiter == '\'' || delimiter == '"') {
                position++;
            } else if (relaxed) {
                delimiter = ' ';
            } else {
                throw new XmlPullParserException("attr value delimiter missing!", this, null);
            }
            attributes[i + 3] = readValue(delimiter, true, throwOnResolveFailure, ValueContext.ATTRIBUTE);
            if (delimiter != ' ') {
                // end quote
                position++;
            }
        } else if (relaxed) {
            attributes[i + 3] = attrName;
        } else {
            checkRelaxed("Attr.value missing f. " + attrName);
            attributes[i + 3] = attrName;
        }
    }
    int sp = depth++ * 4;
    elementStack = ensureCapacity(elementStack, sp + 4);
    elementStack[sp + 3] = name;
    if (depth >= nspCounts.length) {
        int[] bigger = new int[depth + 4];
        System.arraycopy(nspCounts, 0, bigger, 0, nspCounts.length);
        nspCounts = bigger;
    }
    nspCounts[depth] = nspCounts[depth - 1];
    if (processNsp) {
        adjustNsp();
    } else {
        namespace = "";
    }
    // For consistency with Expat, add default attributes after fixing namespaces.
    if (defaultAttributes != null) {
        Map<String, String> elementDefaultAttributes = defaultAttributes.get(name);
        if (elementDefaultAttributes != null) {
            for (Map.Entry<String, String> entry : elementDefaultAttributes.entrySet()) {
                if (getAttributeValue(null, entry.getKey()) != null) {
                    // an explicit value overrides the default
                    continue;
                }
                int i = (attributeCount++) * 4;
                attributes = ensureCapacity(attributes, i + 4);
                attributes[i] = "";
                attributes[i + 1] = null;
                attributes[i + 2] = entry.getKey();
                attributes[i + 3] = entry.getValue();
            }
        }
    }
    elementStack[sp] = namespace;
    elementStack[sp + 1] = prefix;
    elementStack[sp + 2] = name;
}

Example 80 with XmlPullParserException

use of org.xmlpull.v1.XmlPullParserException in project j2objc by google.

the class KXmlParser method readQuotedId.

/**
     * Reads a quoted string, performing no entity escaping of the contents.
     */
private String readQuotedId(boolean returnText) throws IOException, XmlPullParserException {
    int quote = peekCharacter();
    char[] delimiter;
    if (quote == '"') {
        delimiter = DOUBLE_QUOTE;
    } else if (quote == '\'') {
        delimiter = SINGLE_QUOTE;
    } else {
        throw new XmlPullParserException("Expected a quoted string", this, null);
    }
    position++;
    return readUntil(delimiter, returnText);
}