# phpman > man > Font::TTF::Dumper(3pm)

## NAME
    [Font::TTF::Dumper](https://www.chedong.com/phpMan.php/perldoc/Font%3A%3ATTF%3A%3ADumper/markdown) - Debug dump of a font datastructure, avoiding recursion on ' PARENT'

## SYNOPSIS
        use [Font::TTF::Dumper](https://www.chedong.com/phpMan.php/perldoc/Font%3A%3ATTF%3A%3ADumper/markdown);

        # Print a table from the font structure:
        print ttfdump($font->{$tag});

        # Print font table with name
        print ttfdump($font->{'head'}, 'head');

        # Print font table with name and other options
        print ttfdump($font->{'head'}, 'head', %opts);

        # Print one glyph's data:
        print ttfdump($font->{'loca'}->read->{'glyphs'}[$gid], "glyph_$gid");

## DESCRIPTION
    [Font::TTF](https://www.chedong.com/phpMan.php/perldoc/Font%3A%3ATTF/markdown) data structures are trees created from hashes and arrays. When trying to figure out
    how the structures work, sometimes it is helpful to use [Data::Dumper](https://www.chedong.com/phpMan.php/perldoc/Data%3A%3ADumper/markdown) on them. However, many of
    the object structures have ' PARENT' links that refer back to the object's parent, which means
    that [Data::Dumper](https://www.chedong.com/phpMan.php/perldoc/Data%3A%3ADumper/markdown) ends up dumping the whole font no matter what.

    The main purpose of this module is to invoke [Data::Dumper](https://www.chedong.com/phpMan.php/perldoc/Data%3A%3ADumper/markdown) with a filter that skips over the '
    PARENT' element of any hash.

    To reduce output further, this module also skips over ' CACHE' elements and any hash element
    whose value is a [Font::TTF::Glyph](https://www.chedong.com/phpMan.php/perldoc/Font%3A%3ATTF%3A%3AGlyph/markdown) or [Font::TTF::Font](https://www.chedong.com/phpMan.php/perldoc/Font%3A%3ATTF%3A%3AFont/markdown) object. (Really should make this
    configurable.)

    If $opts{'d'}, then set Deepcopy mode to minimize use of crossreferencing.

## AUTHOR
    Bob Hallissy <<http://scripts.sil.org/FontUtils>>.

## LICENSING
    Copyright (c) 1998-2016, SIL International (<http://www.sil.org>)

    This module is released under the terms of the Artistic License 2.0. For details, see the full
    text of the license in the file LICENSE.