xml - Xpath function to find out string length of an attribute -


i have xml message body below. need find out if string length of attribute 'senderid' greater 0. unable find this.

xml message

<?xml version="1.0"?> <audit xmlns="http://schemas.auditlog.xsd"> <messageid>1234</messageid> <senderdetails createddate="2017-jan-12" senderid="app1"/> </audit>

i using below xpath function string length of senderid

when(xpath("string-length(string(//node()[local-name()='senderdetails']/@[local-name()='senderid']/text()))>0))

but not working.

this xpath,

string-length(//*[local-name() = 'senderdetails']/@senderid)

will return 4 because attribute value of @senderid app1, has string length of 4. can test return value appending > 0 if wish return true positive numbers.

see how xpath deal xml namespaces? learn how declare , use namespace prefix in xpath, preferable defeating namespaces via local-name().


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