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.\" ========================================================================
.\"
.IX Title "Font::TTF::GrFeat 3pm"
.TH Font::TTF::GrFeat 3pm "2022-06-14" "perl v5.34.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Font::TTF::GrFeat \- Graphite Font Features
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
.SH "INSTANCE VARIABLES"
.IX Header "INSTANCE VARIABLES"
.IP "version" 4
.IX Item "version"
.PD 0
.IP "features" 4
.IX Item "features"
.PD
An array of hashes of the following form
.RS 4
.IP "feature" 8
.IX Item "feature"
feature id number
.IP "name" 8
.IX Item "name"
name index in name table
.IP "exclusive" 8
.IX Item "exclusive"
exclusive flag
.IP "default" 8
.IX Item "default"
the default setting number
.IP "settings" 8
.IX Item "settings"
hash of setting number against name string index
.RE
.RS 4
.RE
.SH "METHODS"
.IX Header "METHODS"
.ie n .SS "$t\->read"
.el .SS "\f(CW$t\fP\->read"
.IX Subsection "$t->read"
Reads the features from the \s-1TTF\s0 file into memory
.ie n .SS "$t\->out($fh)"
.el .SS "\f(CW$t\fP\->out($fh)"
.IX Subsection "$t->out($fh)"
Writes the features to a \s-1TTF\s0 file
.ie n .SS "$t\->\fBminsize()\fP"
.el .SS "\f(CW$t\fP\->\fBminsize()\fP"
.IX Subsection "$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.
.ie n .SS "$t\->print($fh)"
.el .SS "\f(CW$t\fP\->print($fh)"
.IX Subsection "$t->print($fh)"
Prints a human-readable representation of the table
.ie n .SS "$t\->tag_to_num ($feat_str)"
.el .SS "\f(CW$t\fP\->tag_to_num ($feat_str)"
.IX Subsection "$t->tag_to_num ($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.
.ie n .SS "$t\->num_to_tag ($feat_num)"
.el .SS "\f(CW$t\fP\->num_to_tag ($feat_num)"
.IX Subsection "$t->num_to_tag ($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.
.SH "BUGS"
.IX Header "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.
.SH "AUTHOR"
.IX Header "AUTHOR"
Alan Ward (derived from Jonathan Kew's Feat.pm).
.SH "LICENSING"
.IX Header "LICENSING"
Copyright (c) 1998\-2016, \s-1SIL\s0 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 \s-1LICENSE.\s0