```
% pandoc -f html -t native
x<a href="/foo"> leading trailing space </a>x
^D
[ Plain
  [ Str "x"
  , Space
  , Link
    ( "", [], [] )
    [ Str "leading", Space, Str "trailing", Space, Str "space" ]
    ( "/foo", "" )
  , Space
  , Str "x"
  ]
]
```