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XPath as filesystem addressing

The basic XPath syntax is similar to filesystem addressing.

If the path starts with the slash / , then it represents an absolute path to the required element.

/AAA

Select the root element AAA

<AAA>

<BBB/>

<CCC/>

<BBB/>

<BBB/>

<DDD>

<BBB/>

</DDD>

<CCC/>

</AAA>

/AAA/CCC

Select all elements CCC which are children of the root element AAA

<AAA>

<BBB/>

<CCC/>

<BBB/>

<BBB/>

<DDD>

<BBB/>

</DDD>

<CCC/>

</AAA>

/AAA/DDD/BBB

Select all elements BBB which are children of DDD which are children of the root element AAA

<AAA>

<BBB/>

<CCC/>

<BBB/>

<BBB/>

<DDD>

<BBB/>

</DDD>

<CCC/>

</AAA>