XPath attribute with colon fails to validate

[mwiegand]

Hi,

while working on XMP Meta Data I noticed that the XPath node fails to validate the XPath which references an attribute with a colon. Interestingly, the XPath actually the one which the node suggests to use, though:

Here is the test workflow. Please note that I have NOT tested other characters which should, theoretically, be valid to use!

XPath attribute with colon fails to validate – mwiegand

Best
Mike

[armingrudd]

Hi @mwiegand,

To get the value of the attribute with a colon, you can use @*[name()='<attribute:name>']. e.g.:
/rdf:Description/@*[name()='aux:Firmware']

How to retrieve value of an attribute which contains colon in the attribute name using xpath

[mwiegand]

Yes, that is the „fallback“ approach I integrated in my example workflow. I was under the impression, since a colon is supported in the path declaration for leaves, it‘s a bug.

[armingrudd]

Yes, I didn’t notice the “fallback” in your workflow and I think it’s a good idea to share it with the community.

I’ll discuss this internally and will come back to you soon.

[armingrudd]

Dear @mwiegand,

I created a ticket for the issue you have mentioned here. (AP-20866)

About the “leaves” or elements, colons are used after the namespaces. So, they are not part of the element name. The reason I have doubts not to consider this issue as a bug is the same fact that typically, colons in XML indicate namespace demarcation (e.g.). Yet, as I promised, I discussed it internally and we decided to have a ticket for it and investigate it further.

[mwiegand]

Thanks. Doesn’t the name space declaration using colons only apply for doubled colons “::”? Anyways, leaving it to you guys. Cheers and thanks again!

[armingrudd]

@mwiegand

Doesn’t the name space declaration using colons only apply for doubled colons “::”?

I don’t think so!

XML Namespaces