I am specifically looking to parse the XSLT to retrieve the fields in the input XML and also get the logic between the input and output data been generated,
I am not sure, but have i been given a target to create an XSLT parser which is like a sub module in a browser?
It is more like reverse engineer some code to get the source and map it to the destination data.
Related
I have question about my internship project. They want me to create a basic Login page(ID, Password). I create a XML file for Username and Password. The program should check the XML file for username and password*. If they are correct it will direct to a second window. I'm stuck on processing XML file for username and password. How can read those information in XML file.
As #JarMan said, I would recommend the QXmlStreamReader. You can fill it with a file (QIODevice), QString, QByteArray, etc...
Parsing a value could e.g. look like that
xml.attributes().value( attribute ).toString();
if attribute is a QString and xml is the QXmlStreamReader.
See the doc https://doc.qt.io/qt-5/qxmlstreamreader.html
There are several ways to do it. Marris mentioned one, but another one is to have this kind of code generated automatically. The way this works is that you first write an XML Schema that describes what your XML data looks like. An introduction to the XML Schema language can be found e. g. here.
Then you use an XML Schema compiler to translate the XML Schema to C++ classes. The schema compiler will also generate code to parse an XML file into objects, meaning you don't have to write any code to deal with XML by hand. It's a purely declarative approach: declare what the data looks like, and let the computer figure out the details.
I want to transform an xml source into several xml output files where the filenames are based on a guid (f.e "97749654-886A-11E6-1885-09173F13E4C5.xml").
I am using xslt 2.0 and the home edition of saxon, so I can't use randomUUID().
In other posts I found the workaround with the timestamp method.
But it seems that the current-dateTime() stays the same in the transformation. So the transformation errors because the guid and thus the filenames stay the same.
Is there a way to work around this?
I'm trying to parse Feedburner's full text RSS feed (for example http://feeds.feedburner.com/IeeeSpectrumFullText) and the HTML content is in an element called "content:encoded", but it is encoded (the < symbol becomes < etc.). I'm trying to figure out if it's possible to decode that content via an XSLT transformation. I know that within PHP I can decode and parse it, but I'm hoping there's a way to do this purely in XSLT so that I can only have one PHP process (not conditionally decoding the HTML as necessary).
Please let me know if you have any suggestions.
I hope someone on here has some knowledge of using xerces-c. I have a string that contains a valid XML packet. It had however some leading data that has nothing to do with the XML. Is it possible to have the xerces-c SAXParser ignore any leading data and simply parse the first valid XML it finds? I am using an extremely simply setup without even the use of a DTD as below:
SAXParser* lp_parser(0);
MySaxHandler l_handler;
lp_parser->setDocumentHandler((DocumentHandler *)&l_handler);
lp_parser->setDoNamespaces(false);
lp_parser->setDoNamespaces(false);
lp_parser->setDoSchema(false);
lp_parser->setValidationSchemaFullChecking(false);
MemBufInputSource lp_membuf((const XMLByte*)l_data.c_str(),
l_data.size(),
"My XML request",
false);
lp_parser->parse(lp_membuf);
The l_data is a std::string containing my XML packet including the initial data and MySaxHandler is where I save the few tags I am interested in. I can of course skip until I find the start of the XML myself but that is not the answer I was hoping for.
I am a latecomer to XML - have to parse an XML file. Our company is using xerces already so I managed to cobble together a sample app (SAX) that displays all the data in a file. However, after parsing is complete I was expecting to be able to call the parser or some other entity that had an internal representation of the file and iterate through the fields/data.
Basically I want to be able to hand it some key or other string(s) and get back strings or collections of key/value pairs. I do not see that. It seems pretty obvious to me that that is a good thing to do. Am I missing something?
Is the DOM parsing what I want, or does that fall short too?
Xerces provides both SAX and DOM processing. SAX parsing doesn't construct a model, so once parsing is finished there is nothing to examine or iterate through. DOM processing produces a tree-structured model which gives you what you want.
Check out the beginner's sample in this page
YoLinux Tutorial on Parsing XML
If you use the XercesDOMParser, there is still no way to request a specific key value pair after the document is parsed. I ran into the same problem recently, and while iterating through the DOM tree I stored all the key value pairs in an STL map. Then you can request key value pairs from the map later in the program.