When perl output generated on the following example.c:

  /*@{*/
  #define EXAMPLE (example)
  /*@}*/
  /** \see EXAMPLE */
  extern int example;

There is a confusing item in the output perl package:

  doc => [
    see => [
      {
        type => 'url',
        link => 'example_8c_113b633378ea20dff6ff220caedb3e01d',
        content => 'EXAMPLE'
      }
    ]

'doc=>[...]' declared to array, but initialised with a hash 'see => ...'.
Perl can process it, hash will separated to key and value and will form an array [key, value] like this:

  doc->[0] = 'see';
  doc->[1] = { ... };

but it is formally incorrect, and hardly processable. 

Tested with 1.5.9 windows build