========================
Expression: /.
Object is a Node Set :
Set contains 1 nodes:
1   /

========================
Expression: //.
Object is a Node Set :
Set contains 12 nodes:
1   /
2  ELEMENT root
3  ELEMENT foo
4  TEXT
    content=txt
5  COMMENT
    content=hello
6  CDATA_SECTION
    content=data
7  PI target
    content=data
8  ELEMENT bar
9  TEXT
    content=txt
10  COMMENT
    content=hello
11  CDATA_SECTION
    content=data
12  PI target
    content=data

========================
Expression: /root//.
Object is a Node Set :
Set contains 11 nodes:
1  ELEMENT root
2  ELEMENT foo
3  TEXT
    content=txt
4  COMMENT
    content=hello
5  CDATA_SECTION
    content=data
6  PI target
    content=data
7  ELEMENT bar
8  TEXT
    content=txt
9  COMMENT
    content=hello
10  CDATA_SECTION
    content=data
11  PI target
    content=data

========================
Expression: //.//./././/.
Object is a Node Set :
Set contains 12 nodes:
1   /
2  ELEMENT root
3  ELEMENT foo
4  TEXT
    content=txt
5  COMMENT
    content=hello
6  CDATA_SECTION
    content=data
7  PI target
    content=data
8  ELEMENT bar
9  TEXT
    content=txt
10  COMMENT
    content=hello
11  CDATA_SECTION
    content=data
12  PI target
    content=data

========================
Expression: /root//././/bar//.
Object is a Node Set :
Set contains 5 nodes:
1  ELEMENT bar
2  TEXT
    content=txt
3  COMMENT
    content=hello
4  CDATA_SECTION
    content=data
5  PI target
    content=data