Combine ppi_dumper with Perl documentation / Modern Perl and super search/Tutorials...

PPI::Document
  PPI::Token::Whitespace        '\n'
  PPI::Statement
    PPI::Token::Symbol          '*foo'
  PPI::Token::Whitespace        '\n'

So PPI::Token::Symbol says: The PPI::Token::Symbol class is used to cover all tokens that represent variables and other things that start with a sigil.

So perltoc or perl -> perldata - Perl data types -> http://perldoc.perl.org/perldata.html#Typeglobs-and-Filehandles

Would it be easier if PPI::Token::Symbol linked perldata all on its own? Yes :D