(C) Find XML Element where Attribute = Value

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Finds an XML element at a particular location where an attribute has a specified value.

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#include <C_CkXml.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkXml xml;
    const char *notUsed;

    // We have the following XML and wish to find the value of the time attribute where msg = "alert-from".

    // <cdr id="4e5d3e7f41bf6201ad81000c29703270" e164="6207">
    //     <user>
    //         <grp name="wfln" mode="active"/>
    //     </user>
    //     <event msg="setup-to" time="287069" e164="5034"/>
    //     <event msg="alert-from" time="287069" e164="5034"/>
    //     <event msg="rel-to" time="287079" e164="5034"/>
    // </cdr>

    // First, build the above XML:

    xml = CkXml_Create();
    CkXml_putTag(xml,"cdr");
    CkXml_AddAttribute(xml,"id","4e5d3e7f41bf6201ad81000c29703270");
    CkXml_AddAttribute(xml,"e164","6207");
    CkXml_UpdateAttrAt(xml,"user|grp",TRUE,"name","wfln");
    CkXml_UpdateAttrAt(xml,"user|grp",TRUE,"mode","active");
    CkXml_UpdateAttrAt(xml,"event",TRUE,"msg","setup-to");
    CkXml_UpdateAttrAt(xml,"event",TRUE,"time","287069");
    CkXml_UpdateAttrAt(xml,"event",TRUE,"e164","5034");
    CkXml_UpdateAttrAt(xml,"event[1]",TRUE,"msg","alert-from");
    CkXml_UpdateAttrAt(xml,"event[1]",TRUE,"time","287069");
    CkXml_UpdateAttrAt(xml,"event[1]",TRUE,"e164","5034");
    CkXml_UpdateAttrAt(xml,"event[2]",TRUE,"msg","rel-to");
    CkXml_UpdateAttrAt(xml,"event[2]",TRUE,"time","287079");
    CkXml_UpdateAttrAt(xml,"event[2]",TRUE,"e164","5034");

    // Show that we have the above XML
    printf("%s\n",CkXml_getXml(xml));

    // Find the element where msg = "alert-from"
    // This updates the xml object's reference to the found element (if successful).
    notUsed = CkXml_chilkatPath(xml,"/A/event,msg,alert-from|$");
    if (CkXml_getLastMethodSuccess(xml) == FALSE) {
        printf("Not found.\n");
        CkXml_Dispose(xml);
        return;
    }

    // Get the value of the "time" attribute.
    printf("time = %s\n",CkXml_getAttrValue(xml,"time"));

    // Restore the xml object's internal reference to the root of the XML document
    CkXml_GetRoot2(xml);


    CkXml_Dispose(xml);

    }