RE: Starting To Use Xerces

Ok, this seems to be going nowhere (internal fustration...no offence meant)

Im ignoring XSD....At the end of the day, I just need a quick SIMPLE way of
looking trough an XML File & pushing the XML File data into pre-defined
variable & containers...


-Alex


Jesse Pelton wrote:
> 
> I haven't used XSD myself.  One of its authors subscribes to this list
> and may respond, but I'd try one of the lists specific to the product,
> listed at http://codesynthesis.com/support/. 
> 
> -----Original Message-----
> From: appleGuy [mailto:alx.curtis@xxxxxxxxx] 
> Sent: Friday, December 15, 2006 8:56 AM
> To: c-users@xxxxxxxxxxxxxxxxx
> Subject: RE: Starting To Use Xerces
> 
> 
> Hi,
> 
> This Code Synthesis XSD  Looks like just what i Need but I just Need
> clarification.
> 
> Ive got a project Class, it has variables that I need the XML Data to
> fill.
> There are also containers (lists) that need to be filled. All in the
> same
> class.
> 
> Would I use C++/Tree or C++/Parser? I need something really easy to use
> as
> time is short..
> 
> After further reading im not too bothard about using seperate methods of
> reading & writing XML docs.
> 
> Cheers
> Alex
> 
> 
> Jesse Pelton wrote:
>> 
>> You don't necessarily have to use the same method for reading
> documents
>> that you use for generating them.  SAX is a great interface for
> building
>> up data structures from a document.  It's fast, flexible, and
> efficient.
>> DOM parsing also has its uses, of course, but it tends to be more
>> cumbersome, and uses much more memory.  DOM shines in document
> creation,
>> however.  So I tend to use SAX for parsing and DOM for generating
>> documents, and I suspect that I'm in good company.  It makes a lot of
>> sense when you're using XML to represent data that already has an
>> in-memory representation, that is, when XML is just a serialization
>> format for your data.
>> 
>> Nonetheless, it sounds like the DOM does what you need.
>> 
>> You might want to look at the sample apps (DOMPrint, for instance) to
>> get a sense of how to use the DOM APIs.  Also consider XML data
> binding
>> tools such as Code Synthesis XSD
>> (http://codesynthesis.com/products/xsd/), which is based on Xerces.
>> 
>> -----Original Message-----
>> From: appleGuy [mailto:alx.curtis@xxxxxxxxx] 
>> Sent: Friday, December 15, 2006 8:29 AM
>> To: c-users@xxxxxxxxxxxxxxxxx
>> Subject: Re: Starting To Use Xerces
>> 
>> 
>> Hi,
>> 
>> Ok I made the changes to the XML file.
>> I think im going to use Dom, i read that it allows saving & creating
> XML
>> files. I need to use this eventually & because I have a short
> timeframe
>> I
>> just want to get used to one method. IIs this Ok, will Dom Fufil my
>> needs?
>> 
>> Also How would I start to impliment the Dom (for reading files)...
> dont
>> see
>> a constructor anywhere in the docs...Is it createDOMBuilder ??
>> 
>> Cheers
>> Alex
>> 
>> 
>> Alberto Massari wrote:
>>> 
>>> At 16.15 14/12/2006 -0800, appleGuy wrote:
>>> 
>>>>Hi,
>>>>
>>>>This could be quite a long thread, so please bear with me.
>>>>Ok ive got Xerces installed & its compiling the example correctly.
>>>>
>>>>Now im totally new to XML let alone this parser. Ive contructed the
>>>>following xml file. I need the file to contain data that can be
> parsed
>> &
>>>>values loaded into predefined variables within my application..
>> Firstly I
>>>>suppose I need to know if my XML file is ok: (the example uses place
>> holders
>>>>so author in a real file would be a persons name)
>>>>
>>>><?xml version="1.0" encoding="ISO-8859-1"?>
>>>><loopcardprj>
>>>>         <_prjsetup>
>>>>                 <title>untitled</title>
>>>>                 <author>author</author>
>>>>                 <subject>subject</subject>
>>>>                 <card>subject</card>
>>>>         </_prjsetup>
>>>>         <_questions>"What Is 5 x 3?","What Is 5 x 5?","What Is 5 x 
>>>> 5?"</_questions>
>>>>         <_answers>"15","25","10"</_answers>
>>>>         <_comment>This is an example of a file layout for the 
>>>> LoopCard Software By
>>>>Alex Curtis</_comment>
>>>></loopcardprj>
>>> 
>>> The XML is well-formed; but I would rather use this structure, in 
>>> order to avoid complex application logic to associate a question with
> 
>>> its answer:
>>> 
>>>          <_questions>
>>>                  <question>
>>>                          <q>What Is 5 x 3?</q>
>>>                           15 
>>>                  </question>
>>>                  <question>
>>>                          <q>What Is 5 x 5?</q>
>>>                           25 
>>>                  </question>
>>>                  <question>
>>>                          <q>What Is 5 + 5?</q>
>>>                           10 
>>>                  </question>
>>>          </_questions>
>>> 
>>>>(IF OK): I need to know how to use the parser to parse this file &
>> dump
>> the
>>>>data into the correct variables. I read that DOMBuilder was the class
>> to
>>>>use???
>>> 
>>> DOMBuilder will build a DOM tree that you will have to navigate 
>>> (DOMDocument->getDocumentElement() will give you the pointer to the 
>>> "loopcardprj" node; from there, getFirstChild()/getNextSibling() will
> 
>>> give you either text nodes containing whitespace or the 
>>> "_prjsetup"/"_questions" element; and so on.. until you will find 
>>> some text nodes containing the real data).
>>> Alternatively you can use a SAXParser or a SAX2XMLReader that will 
>>> convert the file into a sequence of callbacks (start "loopcardprj" 
>>> element; start "_prjsetup" element; start "title" element; found data
> 
>>> "untitled"; end "title" element...); if you just need to convert the 
>>> XML file into a C++ data structure, this would be the choice I would
>> made.
>>> 
>>> Alberto
>>> 
>>> 
>>>>Please If you could help, im really new to this XML / Parsing
>> Business...
>>>>
>>>>
>>>>Many Thanks
>>>>-Alex
>>>>--
>>>>View this message in context: 
>>>>http://www.nabble.com/Starting-To-Use-Xerces-tf2824403.html#a7884089
>>>>Sent from the Xerces - C - Users mailing list archive at Nabble.com.
>>> 
>>> 
>>> 
>> 
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>> Sent from the Xerces - C - Users mailing list archive at Nabble.com.
>> 
>> 
>> 
> 
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> Sent from the Xerces - C - Users mailing list archive at Nabble.com.
> 
> 
> 

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