bool IWORKParser::parse()
{
const shared_ptr<xmlTextReader> sharedReader(xmlReaderForIO(readFromStream, closeStream, m_input.get(), "", nullptr, 0), xmlFreeTextReader);
if (!sharedReader)
return false;
xmlTextReaderPtr reader = sharedReader.get();
assert(reader);
const IWORKTokenizer &tokenizer = getTokenizer();
stack<IWORKXMLContextPtr_t> contextStack;
int ret = xmlTextReaderRead(reader);
contextStack.push(createDocumentContext());
bool keynoteDocTypeChecked=false;
char const *defaultNS=nullptr;
while ((1 == ret))
{
switch (xmlTextReaderNodeType(reader))
{
case XML_READER_TYPE_ELEMENT:
{
if (!keynoteDocTypeChecked)
{
// check for keynote 1 file with doctype node and not a namespace in first node
keynoteDocTypeChecked=true;
if (xmlTextReaderNodeType(reader)==XML_READER_TYPE_ELEMENT &&
xmlTextReaderConstNamespaceUri(reader)==nullptr)
defaultNS="http://developer.apple.com/schemas/APXL";
}
const int id = tokenizer.getQualifiedId(char_cast(xmlTextReaderConstLocalName(reader)),
defaultNS ? defaultNS : char_cast(xmlTextReaderConstNamespaceUri(reader)));
IWORKXMLContextPtr_t newContext = contextStack.top()->element(id);
if (!newContext)
newContext = createDiscardContext();
const bool isEmpty = xmlTextReaderIsEmptyElement(reader);
newContext->startOfElement();
if (xmlTextReaderHasAttributes(reader))
{
ret = xmlTextReaderMoveToFirstAttribute(reader);
while (1 == ret)
{
processAttribute(reader, newContext, tokenizer);
ret = xmlTextReaderMoveToNextAttribute(reader);
}
}
if (isEmpty)
newContext->endOfElement();
else
contextStack.push(newContext);
break;
}
case XML_READER_TYPE_END_ELEMENT:
{
contextStack.top()->endOfElement();
contextStack.pop();
break;
}
case XML_READER_TYPE_CDATA :
{
const xmlChar *text = xmlTextReaderConstValue(reader);
if (text) contextStack.top()->CDATA(char_cast(text));
break;
}
case XML_READER_TYPE_TEXT :
{
xmlChar *const text = xmlTextReaderReadString(reader);
contextStack.top()->text(char_cast(text));
xmlFree(text);
break;
}
default:
break;
}
ret = xmlTextReaderRead(reader);
}
while (!contextStack.empty()) // finish parsing in case of broken XML
{
contextStack.top()->endOfElement();
contextStack.pop();
}
xmlTextReaderClose(reader);
return true;
}
bool IWORKParser::parse()
{
const shared_ptr<xmlTextReader> sharedReader(xmlReaderForIO(readFromStream, closeStream, m_input.get(), "", 0, 0), xmlFreeTextReader);
if (!sharedReader)
return false;
xmlTextReaderPtr reader = sharedReader.get();
assert(reader);
const IWORKTokenizer &tokenizer = getTokenizer();
stack<IWORKXMLContextPtr_t> contextStack;
int ret = xmlTextReaderRead(reader);
contextStack.push(createDocumentContext());
while ((1 == ret))
{
switch (xmlTextReaderNodeType(reader))
{
case XML_READER_TYPE_ELEMENT:
{
const int id = tokenizer.getQualifiedId(char_cast(xmlTextReaderConstLocalName(reader)), char_cast(xmlTextReaderConstNamespaceUri(reader)));
IWORKXMLContextPtr_t newContext = contextStack.top()->element(id);
if (!newContext)
newContext = createDiscardContext();
const bool isEmpty = xmlTextReaderIsEmptyElement(reader);
newContext->startOfElement();
if (xmlTextReaderHasAttributes(reader))
{
ret = xmlTextReaderMoveToFirstAttribute(reader);
while (1 == ret)
{
processAttribute(reader, newContext, tokenizer);
ret = xmlTextReaderMoveToNextAttribute(reader);
}
}
if (isEmpty)
newContext->endOfElement();
else
contextStack.push(newContext);
break;
}
case XML_READER_TYPE_END_ELEMENT:
{
contextStack.top()->endOfElement();
contextStack.pop();
break;
}
case XML_READER_TYPE_TEXT :
{
xmlChar *const text = xmlTextReaderReadString(reader);
contextStack.top()->text(char_cast(text));
xmlFree(text);
break;
}
default:
break;
}
ret = xmlTextReaderRead(reader);
}
while (!contextStack.empty()) // finish parsing in case of broken XML
{
contextStack.top()->endOfElement();
contextStack.pop();
}
xmlTextReaderClose(reader);
return true;
}
