Martin Hosken > Font-TTF-1.05 > Font::TTF::OTTags

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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) 1998-2014, 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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