# Font::TTF::Dumper - phpMan

## NAME
    [Font::TTF::Dumper] - Debug dump of a font datastructure, avoiding
    recursion on ' PARENT'

## SYNOPSIS
        use [Font::TTF::Dumper];

        # 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] 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] on them. However, many of the object structures have '
    PARENT' links that refer back to the object's parent, which means that
    [Data::Dumper] ends up dumping the whole font no matter what.

    The main purpose of this module is to invoke [Data::Dumper] 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] or
    [Font::TTF::Font] 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.