#xml 1
<ab/>

#data
/
#result 1
/

#data
(/) and 0
#result
false

#data
self::*
#result 1
#result 1 /1
/1

#data
self::node ()
#result 1
/
#result 1 /1
/1

#xml 2
<p>aaa<!----><q hoge="">aa<p>a</p></q></p>

#data
child::p/.
#result 2
/1
#result 2 /1
#result 2 /1/3
/1/3/2

#data
.
#result 2
/
#result 2 /1/3/@hoge
/1/3/@hoge

#data
child::p/self::*
#result 2 /1/3/@hoge

#data
child::p/self::hoge
#result 2 /1/3/@hoge

#data
(child::p)/self::p
#result 2
/1

#data
"aa"/self::node()
#result 2
null
#errors 2
m;xpath:incompat with node-set;string

#data
12.5/.
#result 2
null
#errors 2
m;xpath:incompat with node-set;number

#data
(1 and 1)/..
#result 2
null
#errors 2
m;xpath:incompat with node-set;boolean

#data
/ | /
#result 2
/

#data
/ | child::*
#result 2
/
/1

#data
/ | child::* | child::* | child::*/child::*
#result 2
/
/1
/1/3

#data
(/ | child::*)/child::*
#result 2
/1
/1/3

#data
/ | (/ | child::*)/child::*
#result 2
/
/1
/1/3

#data
(child::*) | /
#result 2
/
/1

#data
(ancestor-or-self::node())
#result 2 /1/3/2
/
/1
/1/3
/1/3/2

#data
(/ | child::*)/child::* | //p
#result 2
/1
/1/3
/1/3/2

#data
/ | "a"
#result 2
null
#errors 2
m;xpath:incompat with node-set;string

#data
12.5 | / 
#result 2
null
#errors 2
m;xpath:incompat with node-set;number

#data
/child::* | (1 = 1)
#result 2
null
#errors 2
m;xpath:incompat with node-set;boolean

#data
/attribute::* | (1 = 1)
#result 2
null
#errors 2
m;xpath:incompat with node-set;boolean

#data
"abc" | 12.4
#result 2
null
#errors 2
m;xpath:incompat with node-set;string

#xml 3
<p>a<q a="" b=""/><r b="" a=""/></p>

#data
/p/r/@a | /p/q/attribute::a
#result 3
/1/2/@a
/1/3/@a

#data
/p/q/@b | /p/q/@a
#result 3
/1/2/@a
/1/2/@b

#data
//q | //@a
#result 3
/1/2
/1/2/@a
/1/3/@a

#data
(//q | //@a)/self::node()
#result 3
/1/2
/1/2/@a
/1/3/@a

#data
(//q | //@a)/self::node()[2]
#result 3
/1/2/@a

#data
(//q | //@a)/self::*
#result 3
/1/2

#data
(//r | //@a)/self::node()
#result 3
/1/2/@a
/1/3
/1/3/@a

#data
(//r | //@a)[2]
#result 3
/1/3

#data
(//r | //@a)/self::node()[2]
#result 3
/1/3

#data
("a" | /) + 1
#result 3
null
#errors 3
m;xpath:incompat with node-set;string