Font::TTF::OTTags

NAME

Font::TTF::OTTags − Utilities for TrueType/OpenType tags

SYNOPSIS

use Font::TTF::OTTags qw( %tttags %ttnames %iso639 readtagsfile );
# Look at built−in stuff:
$script_tag = $tttags{'SCRIPT'}{'Cypriot Syllabary'}; # returns 'cprt'
$lang_name = $ttnames{'LANGUAGE'}{'ALT '}; # returns 'Altai'
# Map iso639−2 tag to/from OT lang tag
@isotags = $iso639{'ALT '}; # returns [ 'atv', 'alt' ]
$lang_tag = $iso639{'atv'}; # returns 'ALT '
# Read latest tags file to add to built−in definitions
readtagsfile ("C:\\Program Files\\Microsoft VOLT\\TAGS.txt");

First-level keys to %tttags and %ttnames are:
SCRIPT

retrieve script tag or name

LANGUAGE

retrieve language tag or name

FEATURE

retrieve feature tag or name

Built-in data has been derived from the 2014−07−11 draft of the 3rd edition of ISO/IEC 14496−22 (Information technology − Coding of audio-visual objects − Part 22: Open Font Format) which, when finalized and approved, will replace the second edition ( ISO/IEC 14496−22:2009 ).

METHODS

readtagsfile ( filename )
Read a file in the syntax of Tags.txt (included with Microsoft VOLT ) to obtain additional/replacement tag definitions.

Returns 0 if cannot open the file; else 1.

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.