PPI::Dumper - Dumping of PDOM trees

       Adam Kennedy <adamk@cpan.org>

       Copyright 2001 - 2011 Adam Kennedy.

       This  program  is  free  software;  you can redistribute it and/or modify it under the same terms as Perl
       itself.

       The full text of the license can be found in the LICENSE file included with this module.

perl v5.40.1                                       2025-08-10                                   PPI::Dumper(3pm)

       The PDOM trees in PPI are quite complex, and getting a dump of their structure for development and
       debugging purposes is important.

       This module provides that functionality.

       The process is relatively simple. Create a dumper object with a particular set of options, and then call
       one of the dump methods to generate the dump content itself.

new$Element,param=>value,...
       The "new" constructor creates a dumper, and takes as argument a single PPI::Element object of any type to
       serve as the root of the tree to be dumped, and a number of key->value parameters to control the output
       format of the Dumper. Details of the parameters are listed below.

       Returns a new "PPI::Dumper" object, or "undef" if the constructor is not passed a correct PPI::Element
       root object.

       memaddr
           Should the dumper print the memory addresses of each PDOM element.  True/false value, off by default.

       indent
           Should  the  structures being dumped be indented. This value is numeric, with the number representing
           the number of spaces to use when indenting the dumper output. Set to '2' by default.

       class
           Should the dumper print the full class for each element.  True/false value, on by default.

       content
           Should the dumper show the content of each element. True/false value, on by default.

       whitespace
           Should the dumper show whitespace tokens. By not showing the copious numbers of whitespace tokens the
           structure of the code can often be made much clearer. True/false value, on by default.

       comments
           Should the dumper show comment tokens. In situations where you have a lot of comments, the  code  can
           often be made clearer by ignoring comment tokens. True/false value, on by default.

       locations
           Should  the  dumper  show the location of each token. The values shown are [ line, rowchar, column ].
           See "location" in PPI::Element for a description of what these values really are.  True/false  value,
           off by default.

   print
       The "print" method generates the dump and prints it to STDOUT.

       Returns as for the internal print function.

   string
       The "string" method generates the dump and provides it as a single string.

       Returns a string or undef if there is an error while generating the dump.

   list
       The "list" method generates the dump and provides it as a raw list, without trailing newlines.

       Returns a list or the null list if there is an error while generating the dump.

       PPI::Dumper - Dumping of PDOM trees

       See the support section in the main module.

         # Load a document
         my $Module = PPI::Document->new( 'MyModule.pm' );

         # Create the dumper
         my $Dumper = PPI::Dumper->new( $Module );

         # Dump the document
         $Dumper->print;