NAME¶
MDOM::Dumper - Dumping of MDOM trees
SYNOPSIS¶
# Load a document
my $Module = MDOM::Document->new( 'MyMakefile' );
# Create the dumper
my $Dumper = MDOM::Dumper->new( $Module );
# Dump the document
$Dumper->print;
DESCRIPTION¶
The MDOM trees in MDOM 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.
METHODS¶
new $Element, param => value, ...¶
The "new" constructor creates a dumper, and takes as argument a single
MDOM::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 "MDOM::Dumper" object, or "undef" if the
constructor is not passed a correct MDOM::Element root object.
- memaddr
- Should the dumper print the memory addresses of each MDOM 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/value value, on by default.
- locations
- Should the dumper show the location of each token. The values shown are [
line, rowchar, column ]. See "location" in MDOM::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 generation the dump.
SUPPORT¶
See the support section in the main module.
AUTHOR¶
Adam Kennedy <adamk@cpan.org>
Zhang "agentzh" Yichun "<agentzh@gmail.com>"
COPYRIGHT¶
Copyright 2001 - 2006 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.