GPath expression for finding all attribute values by name

Question

Looking for GPath expression to get list of attribute values using the attribute name: ``` def xmltxt = """ sunny golf wallstreet NA gossip """ ``` ..when searching for all `category` attributes, I want to get back this, regardless of where `category` attributes exists in the document: `[weather, sports, business, deals, life]` ...but all my attempts retrieve more than what I want, appears it's returning nodes that don't have `category` attributes; I can remove the empty elements from the list, but I'd like to know why this is happening. `[, weather, sports, business, deals, , life]` ``` def names = xml.'**'.findAll{ it.@category }.collect{ it.@category } ```

Accepted Answer

```
def parsed = new XmlParser().parseText( xmltxt )
parsed.'**'*.attribute( 'category' ).findAll()
```

should do.

Here you go, with `XmlSlurper` solution:

```
def parsed = new XmlSlurper().parseText( xmltxt )
parsed.'**'*.attributes().findResults { it.category }
```

GPath expression for finding all attribute values by name

Solution

Problem