Font::TTF::OTTags - Utilities for TrueType/OpenType tags
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).
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.
Bob Hallissy. http://scripts.sil.org/FontUtils.
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.
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