%description:
Check cXMLElement::getElementById()

%file: test.xml

<foo id="1">
    <foo id="2" color="red">one</foo>
    <bar id="3" color="red">
        <foo id="4">two</foo>
        <bar id="5">three</bar>
    </bar>
    <foo id="6">
        <bar id="7" color="red">four</bar>
        <bar id="8">five</bar>
        <bar id="9" color="yellow">
            <baz id="10" color="green" weight="heavy">six</baz>
        </bar>
    </foo>
    <bar id="11" color="green">
        <foo id="12">seven</foo>
        <bar id="13">eight</bar>
        <bar id="14">nine</bar>
    </bar>
    <bar id="15">ten</bar>
</foo>

%global:

static void getElement(const char *id)
{
    cXMLElement *rootelement = getEnvir()->getXMLDocument("test.xml", nullptr);
    cXMLElement *node = rootelement->getElementById(id);

    EV << id << ": " << (!node ? "null" : node->getAttribute("id")) << "\n";
}

%activity:

getElement("1");
getElement("12");
getElement("10");
getElement("999");
getElement("4!");
getElement("");

%contains: stdout
1: 1
12: 12
10: 10
999: null
4!: null
: null