[Wtp-wst-dev] Question for XML parsing

["Guo Chen" <jardonc@xxxxxxxxxx>]

Title: Message

Hi,

 

I'm parsing an XML file, there is an element named <tl1_message> inside this file, it looks like:

 

<tl1_message>
    <tl1_message_type>

        ..
        ..
        ..

    </tl1_message_type>
    <prod_rel name="ABC" start_rel="aa" end_rel="bb"/>
    <prod_rel name="XYZ" start_rel="cc" end_rel="dd"/>
    <other elements.../>
</tl1_message>

This is my requirements:

1). if ABC = XYZ and either bb or dd greater than 6.0, then

<tl1_message>
    <tl1_message_type>

        ..
        ..
        ..

    </tl1_message_type>
    <prod_rel name="ABC"/>
    <other elements.../>
</tl1_message>

 

2). if ABC != XYZ and both bb and dd are less than 3.0, then
the entire element <tl1_message> should be removed.

My difficulty is:
1). How to compare bb and dd, they are in different element(in the same level).
2). How to delete the entire element in this case.

 

Thanks

 

Guo