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.IX Title "Font::TTF::Dumper 3"
.TH Font::TTF::Dumper 3 2023-07-25 "perl v5.38.0" "User Contributed Perl Documentation"
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.SH NAME
Font::TTF::Dumper \- Debug dump of a font datastructure, avoiding recursion on ' PARENT'
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\&    use Font::TTF::Dumper;
\&    
\&    # Print a table from the font structure:
\&    print ttfdump($font\->{$tag});
\&    
\&    # Print font table with name
\&    print ttfdump($font\->{\*(Aqhead\*(Aq}, \*(Aqhead\*(Aq);
\&    
\&    # Print font table with name and other options
\&    print ttfdump($font\->{\*(Aqhead\*(Aq}, \*(Aqhead\*(Aq, %opts);
\&
\&    # Print one glyph\*(Aqs data:
\&    print ttfdump($font\->{\*(Aqloca\*(Aq}\->read\->{\*(Aqglyphs\*(Aq}[$gid], "glyph_$gid");
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
Font::TTF data structures are trees created from hashes and arrays. When trying to figure
out how the structures work, sometimes it is helpful to use Data::Dumper on them. However,
many of the object structures have ' PARENT' links that refer back to the object's parent,
which means that Data::Dumper ends up dumping the whole font no matter what.
.PP
The main purpose of this module is to invoke Data::Dumper with a
filter that skips over the ' PARENT' element of any hash.
.PP
To reduce output further, this module also skips over ' CACHE' elements and any 
hash element whose value is a Font::TTF::Glyph or Font::TTF::Font object. 
(Really should make this configurable.)
.PP
If \f(CW$opts\fR{'d'}, then set Deepcopy mode to minimize use of crossreferencing.
.SH AUTHOR
.IX Header "AUTHOR"
Bob Hallissy <http://scripts.sil.org/FontUtils>.
.SH LICENSING
.IX Header "LICENSING"
Copyright (c) 1998\-2016, SIL International (http://www.sil.org)
.PP
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.