Re: [Rcml-group2] need help

[John B. <jx...@ga...>]

> 
> 
> Hi All,
> 
>     I've been looking the API document for a while. I still couldn't know 
> how to retrieve the value of each attribute.
> 
>     Eg. how can we get 1.3 value out of this node
> <CURRENTREVISION HEAD = "1.3"> ..............</CURRENTREVISION>
> 
>     In the psedocode:    currev->getAttribut("HEAD")
> 
>     But after I check out the API, it doesn't have this
> getAttribute(String) method function. It has getAttri(), which returns
> DOM_NamedNodeMap. I don't what I can do with DOM_NamedNodeMap. In this 
> class, it doesn't say anything about the atrribute data type ,value

  Hi, Jake.  getAttribute() is a method of the DOM_Element class.  The
inheritance hierarchy may be throwing you off; DOM_Element inherits
from DOM_Node, so you have all methods from both classes to call for a
DOM_Element.

  getAttribute() returns a DOMString,which appears to be overloaded to
behave almost like a regular string.  (But consult the docs to be
sure).

  All of the methods on Xerces objects in that pseudocode are defined
somewhere in the documentation.  I got most of them out of
DOMPrint.cpp.

> To J. David,
> 
> To get data for head_text
> To get head_text, do we need to get the first child?
> head_text = currev->getFirstChild->getData
> I couldn't find getData member function in DOM_Node also.

  Yes, you need to get the first child of the <CURRENTREVISION/>
element.  Look at the following code from the hacked-up DOMPrint.cpp I
sent:

    DOM_Element  catElem = doc.createElement("category");
    ...
    DOM_Text    catDataVal = doc.createTextNode("XML Parsing Tools");
    catElem.appendChild(catDataVal);

  An element called <category/> is created, and then the text "XML
Parsing Tools" is added into it, so that it looks like this:
<category>XML Parsing Tools</category>
In Xerces terms, the text node containing the text of the element is
the first child node of the category element.  This is exactly the
situation we face with the head_text in <CURRENTREVISION/>.

  The text is a DOM_Text, which inherits from DOM_CharacterData.
getData() is an object method of the DOM_CharacterData class.

  Thanks.

<jdb status="here if you need me"> :) </jdb>