bionic (3) Font::TTF::GrFeat.3pm.gz

NAME

       Font::TTF::GrFeat - Graphite Font Features

DESCRIPTION

INSTANCE VARIABLES

       version
       features
           An array of hashes of the following form

           feature feature id number

           name    name index in name table

           exclusive
                   exclusive flag

           default the default setting number

           settings
                   hash of setting number against name string index

METHODS

   $t->read
       Reads the features from the TTF file into memory

   $t->out($fh)
       Writes the features to a TTF file

   $t->minsize()
       Returns the minimum size this table can be. If it is smaller than this, then the table must be bad and
       should be deleted or whatever.

   $t->print($fh)
       Prints a human-readable representation of the table

   $t->tag_to_num ($feat_str)
       Convert an alphanumeric feature id tag (string) to a number (32-bit).  Tags are normally 4 chars.
       Graphite ignores space padding if it is present, so we do the same here.

   $t->num_to_tag ($feat_num)
       Convert a feature id number (32-bit) back to a tag (string).  Trailing space or null padding is removed.
       Feature id numbers that do not represent alphanumeric tags are returned unchanged.

BUGS

       The version 1 Feat table ends with a feature (id 1) named NoName with zero settings but with an offset to
       the last entry in the setting array. This last setting has id 0 and an invalid name id. This last feature
       is changed to have one setting.

AUTHOR

       Alan Ward (derived from Jonathan Kew's Feat.pm).

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.