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.IX Title "Font::TTF::OTTags 3"
.TH Font::TTF::OTTags 3 2023-07-25 "perl v5.38.0" "User Contributed Perl Documentation"
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.SH NAME
Font::TTF::OTTags \- Utilities for TrueType/OpenType tags
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\&  use Font::TTF::OTTags qw( %tttags %ttnames %iso639 readtagsfile );
\&  
\&  # Look at built\-in stuff:
\&  $script_tag = $tttags{\*(AqSCRIPT\*(Aq}{\*(AqCypriot Syllabary\*(Aq};  # returns \*(Aqcprt\*(Aq
\&  $lang_name = $ttnames{\*(AqLANGUAGE\*(Aq}{\*(AqALT \*(Aq};             # returns \*(AqAltai\*(Aq
\&  
\&  # Map iso639\-2 tag to/from OT lang tag
\&  @isotags = $iso639{\*(AqALT \*(Aq};    # returns [ \*(Aqatv\*(Aq, \*(Aqalt\*(Aq ]
\&  $lang_tag = $iso639{\*(Aqatv\*(Aq};    # returns \*(AqALT \*(Aq
\&    
\&  # Read latest tags file to add to built\-in definitions
\&  readtagsfile ("C:\e\eProgram Files\e\eMicrosoft VOLT\e\eTAGS.txt");
.Ve
.PP
First-level keys to \f(CW%tttags\fR and \f(CW%ttnames\fR are:
.IP SCRIPT 4
.IX Item "SCRIPT"
retrieve script tag or name
.IP LANGUAGE 4
.IX Item "LANGUAGE"
retrieve language tag or name
.IP FEATURE 4
.IX Item "FEATURE"
retrieve feature tag or name
.PP
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).
.SH METHODS
.IX Header "METHODS"
.SS "readtagsfile ( filename )"
.IX Subsection "readtagsfile ( filename )"
Read a file in the syntax of Tags.txt (included with Microsoft VOLT) to obtain additional/replacement tag definitions.
.PP
Returns 0 if cannot open the file; else 1.
.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.